diff --git a/.nojekyll b/.nojekyll new file mode 100644 index 00000000..e69de29b diff --git a/CNAME b/CNAME new file mode 100644 index 00000000..4a1b1e5f --- /dev/null +++ b/CNAME @@ -0,0 +1 @@ +spack.io diff --git a/COPYRIGHT b/COPYRIGHT new file mode 100644 index 00000000..cdc5e145 --- /dev/null +++ b/COPYRIGHT @@ -0,0 +1,21 @@ +Intellectual Property Notice +------------------------------ + +Spack is licensed under the Apache License, Version 2.0 (LICENSE-APACHE +or http://www.apache.org/licenses/LICENSE-2.0) or the MIT license, +(LICENSE-MIT or http://opensource.org/licenses/MIT), at your option. + +Copyrights and patents in the Spack project are retained by contributors. +No copyright assignment is required to contribute to Spack. + +SPDX usage +------------ + +Individual files contain SPDX tags instead of the full license text. +This enables machine processing of license information based on the SPDX +License Identifiers that are available here: https://spdx.org/licenses/ + +Files that are dual-licensed as Apache-2.0 OR MIT contain the following +text in the license header: + + SPDX-License-Identifier: (Apache-2.0 OR MIT) diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 00000000..c7acae92 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,29 @@ +# use standard ruby build image +FROM ruby as build-env +WORKDIR /build + +# Set default locale for the environment +ENV LC_ALL C.UTF-8 +ENV LANG en_US.UTF-8 +ENV LANGUAGE en_US.UTF-8 +ENV JEKYLL_ENV production + +RUN gem update --system + +# first install w/o copying in files, so we can cache dependencies in a layer +# `bundle install` can take a while. +COPY Gemfile . +RUN bundle install + +# copy everything in but keep the Gemfile.lock from the original install +# Note that Gemfile.lock is in .dockerignore +COPY . ./ + +# Now do the much quicker Jekyll build +RUN bundle exec jekyll build --verbose + +# use a lightweight run image and copy everything from the build image into it +FROM nginx:mainline-alpine +COPY --from=build-env --chown=nginx:nginx /build/_site /usr/share/nginx/html + +CMD ["nginx", "-g", "daemon off;"] diff --git a/NOTICE b/NOTICE new file mode 100644 index 00000000..3737d5a8 --- /dev/null +++ b/NOTICE @@ -0,0 +1,21 @@ +This work was produced under the auspices of the U.S. Department of +Energy by Lawrence Livermore National Laboratory under Contract +DE-AC52-07NA27344. + +This work was prepared as an account of work sponsored by an agency of +the United States Government. Neither the United States Government nor +Lawrence Livermore National Security, LLC, nor any of their employees +makes any warranty, expressed or implied, or assumes any legal liability +or responsibility for the accuracy, completeness, or usefulness of any +information, apparatus, product, or process disclosed, or represents that +its use would not infringe privately owned rights. + +Reference herein to any specific commercial product, process, or service +by trade name, trademark, manufacturer, or otherwise does not necessarily +constitute or imply its endorsement, recommendation, or favoring by the +United States Government or Lawrence Livermore National Security, LLC. + +The views and opinions of authors expressed herein do not necessarily +state or reflect those of the United States Government or Lawrence +Livermore National Security, LLC, and shall not be used for advertising +or product endorsement purposes. diff --git a/about/index.html b/about/index.html new file mode 100644 index 00000000..0655331b --- /dev/null +++ b/about/index.html @@ -0,0 +1,426 @@ + + + + + + + +About Spack - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+
+
+ +
+
+
+ + +
+ + + + + + +
+ + + +
+ + + + + +
+ +
+

+ +

+ + + +
+ + +
+ + + +

Spack is a package manager for +supercomputers, Linux, and +macOS. It makes installing scientific software easy. With Spack, you can +build a package with multiple versions, configurations, platforms, and +compilers, and all of these builds can coexist on the same machine.

+ +

Spack isn’t tied to a particular language; you can build a software stack +in +Python +or R, link to libraries written in C, C++, or Fortran, easily +swap compilers, and +target specific +microarchitectures. +Use Spack to install without root in your home directory, to +manage shared installations and modules, +or to build combinatorial versions of software for testing.

+ +

Install Spack

+ +

Clone Spack from GitHub and you’re ready to go:

+ +
git clone https://github.com/spack/spack.git
+. spack/share/spack/setup-env.sh
+spack install hdf5
+ +

Custom versions & configurations

+ +

The installation of Spack can be customized in a variety of ways. Users can +specify the package version, compiler, compile-time options, and even +cross-compile platform, all from the command line.

+ +
   # Install a specific version by appending @
+   $ spack install hdf5@1.10.1
+
+   # Specify a compiler (and optional version), with %
+   $ spack install hdf5@1.10.1 %gcc@4.7.3
+
+   # Add special boolean compile-time options with +
+   $ spack install hdf5@1.10.1 %gcc@4.7.3 +szip
+
+   # Add custom compiler flags
+   $ spack install hdf5@1.10.1 %gcc@4.7.3 cppflags="-O3 -floop-block"
+
+   # Cross-compile for compute nodes on a Cray or Blue Gene/Q
+   $ spack install hdf5@1.10.1 target=backend
+ +

Users can specify as many or few options as they care about. Spack will fill in +the unspecified values with sensible defaults. The two listed syntaxes for +variants are identical when the value is boolean.

+ +

Customize dependencies

+ +

Spack allows dependencies of particular installations to be customized +extensively. Suppose that hdf5 depends on openmpi and indirectly on +hwloc. Using ^, users can add custom configurations for dependencies:

+ +
   # Install hdf5 and link it with specific versions of openmpi and hwloc
+   $ spack install hdf5@1.10.1 %gcc@4.7.3 +debug ^openmpi+cuda fabrics=auto ^hwloc+gl
+ +

Packages can peacefully coexist

+ +

Spack installs every unique package/dependency configuration into its own +prefix, so new installs will not break existing ones.

+ +

Spack avoids library misconfiguration by using RPATH to link dependencies. +When a user links a library or runs a program, it is tied to the dependencies +it was built with, so there is no need to manipulate LD_LIBRARY_PATH at +runtime.

+ +

Creating packages is easy

+ +

Spack packages are simple Python scripts. The +spack create +command will generate boilerplate to get you started, and you can create a +package in a matter of minutes. You write the build instructions; Spack builds +the dependencies for you.

+ +
from spack import *
+
+class Kripke(Package):
+    """Kripke is a simple, scalable, 3D Sn deterministic particle
+       transport proxy/mini app.
+    """
+    homepage = "https://computing.llnl.gov/projects/co-design/kripke"
+    url      = "https://computing.llnl.gov/downloads/kripke-openmp-1.1.tar.gz"
+
+    version('1.1', '7fe6f2b26ed983a6ce5495ab701f85bf')
+
+    variant('mpi',    default=True, description='Build with MPI.')
+    variant('openmp', default=True, description='Build with OpenMP enabled.')
+
+    depends_on('mpi', when="+mpi")
+
+    def install(self, spec, prefix):
+        with working_dir('build', create=True):
+            cmake('-DCMAKE_INSTALL_PREFIX:PATH=.',
+                  '-DENABLE_OPENMP=%s' % ('+openmp' in spec),
+                  '-DENABLE_MPI=%s'    % ('+mpi' in spec),
+                  '..',
+                  *std_cmake_args)
+
+            make()
+            mkdirp(prefix.bin)
+            install('kripke', prefix.bin)
+ +

Get Involved!

+ +

Visit Spack on GitHub and +take the tutorial. +Join the discussion on the +GoogleGroup, and learn how to +contribute +your own packages. Check out the Upcoming Events page for tutorials, +workshops, BoFs, etc.

+ + +
+ + + + + + +
+ + +
+ + + +
+ + +
+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/assets/css/main.css b/assets/css/main.css new file mode 100644 index 00000000..876cd48d --- /dev/null +++ b/assets/css/main.css @@ -0,0 +1,8 @@ +/*! + * Minimal Mistakes Jekyll Theme 4.26.2 by Michael Rose + * Copyright 2013-2024 Michael Rose - mademistakes.com | @mmistakes + * Free for personal and commercial use under the MIT license + * https://github.com/mmistakes/minimal-mistakes/blob/master/LICENSE + */.mfp-counter{font-family:Georgia,Times,serif}.mfp-bg{top:0;left:0;width:100%;height:100%;z-index:1042;overflow:hidden;position:fixed;background:#000;opacity:.8;filter:alpha(opacity=80)}.mfp-wrap{top:0;left:0;width:100%;height:100%;z-index:1043;position:fixed;outline:none !important;-webkit-backface-visibility:hidden}.mfp-container{text-align:center;position:absolute;width:100%;height:100%;left:0;top:0;padding:0 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"vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_buttons.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_notices.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_masthead.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_navigation.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_footer.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_search.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_syntax.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_utilities.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_page.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_archive.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_sidebar.scss", + "vendor/bundle/ruby/2.7.0/gems/minimal-mistakes-jekyll-4.26.2/_sass/minimal-mistakes/_print.scss" + ], + "sourcesContent": [ + "@import \"minimal-mistakes\";\n\nhtml {\n font-size: 14px; // change to whatever\n\n @include breakpoint($medium) {\n font-size: 14px; // change to whatever\n }\n\n @include breakpoint($large) {\n font-size: 16px; // change to whatever\n }\n\n @include breakpoint($x-large) {\n font-size: 18px; // change to whatever\n }\n}\n", + "/* Copyright comment */\n@import \"minimal-mistakes/copyright\";\n\n/* Variables */\n@import \"minimal-mistakes/variables\";\n\n/* Mixins and functions */\n@import \"minimal-mistakes/vendor/breakpoint/breakpoint\";\n@include breakpoint-set(\"to ems\", true);\n@import \"minimal-mistakes/vendor/magnific-popup/magnific-popup\"; // Magnific Popup\n@import \"minimal-mistakes/vendor/susy/susy\";\n@import \"minimal-mistakes/mixins\";\n\n/* Core CSS */\n@import \"minimal-mistakes/reset\";\n@import \"minimal-mistakes/base\";\n@import \"minimal-mistakes/forms\";\n@import \"minimal-mistakes/tables\";\n@import \"minimal-mistakes/animations\";\n\n/* Components */\n@import \"minimal-mistakes/buttons\";\n@import \"minimal-mistakes/notices\";\n@import \"minimal-mistakes/masthead\";\n@import \"minimal-mistakes/navigation\";\n@import \"minimal-mistakes/footer\";\n@import \"minimal-mistakes/search\";\n@import \"minimal-mistakes/syntax\";\n\n/* Utility classes */\n@import \"minimal-mistakes/utilities\";\n\n/* Layout specific */\n@import \"minimal-mistakes/page\";\n@import \"minimal-mistakes/archive\";\n@import \"minimal-mistakes/sidebar\";\n@import \"minimal-mistakes/print\";\n", + "/*!\n * Minimal Mistakes Jekyll Theme 4.26.2 by Michael Rose\n * Copyright 2013-2024 Michael Rose - mademistakes.com | @mmistakes\n * Free for personal and commercial use under the MIT license\n * https://github.com/mmistakes/minimal-mistakes/blob/master/LICENSE\n */\n", + "/* ==========================================================================\n Variables\n ========================================================================== */\n\n/*\n Typography\n ========================================================================== */\n\n$doc-font-size: 16 !default;\n\n/* paragraph indention */\n$paragraph-indent: false !default; // true, false (default)\n$indent-var: 1.3em !default;\n\n/* system typefaces */\n$serif: Georgia, Times, serif !default;\n$sans-serif: -apple-system, BlinkMacSystemFont, \"Roboto\", \"Segoe UI\",\n \"Helvetica Neue\", \"Lucida Grande\", Arial, sans-serif !default;\n$monospace: Monaco, Consolas, \"Lucida Console\", monospace !default;\n\n/* sans serif typefaces */\n$sans-serif-narrow: $sans-serif !default;\n$helvetica: Helvetica, \"Helvetica Neue\", Arial, sans-serif !default;\n\n/* serif typefaces */\n$georgia: Georgia, serif !default;\n$times: Times, serif !default;\n$bodoni: \"Bodoni MT\", serif !default;\n$calisto: \"Calisto MT\", serif !default;\n$garamond: Garamond, serif !default;\n\n$global-font-family: $sans-serif !default;\n$header-font-family: $sans-serif !default;\n$caption-font-family: $serif !default;\n\n/* type scale */\n$type-size-1: 2.441em !default; // ~39.056px\n$type-size-2: 1.953em !default; // ~31.248px\n$type-size-3: 1.563em !default; // ~25.008px\n$type-size-4: 1.25em !default; // ~20px\n$type-size-5: 1em !default; // ~16px\n$type-size-6: 0.75em !default; // ~12px\n$type-size-7: 0.6875em !default; // ~11px\n$type-size-8: 0.625em !default; // ~10px\n\n/* headline scale */\n$h-size-1: 1.563em !default; // ~25.008px\n$h-size-2: 1.25em !default; // ~20px\n$h-size-3: 1.125em !default; // ~18px\n$h-size-4: 1.0625em !default; // ~17px\n$h-size-5: 1.03125em !default; // ~16.5px\n$h-size-6: 1em !default; // ~16px\n\n/*\n Colors\n ========================================================================== */\n\n$gray: #7a8288 !default;\n$dark-gray: mix(#000, $gray, 50%) !default;\n$darker-gray: mix(#000, $gray, 60%) !default;\n$light-gray: mix(#fff, $gray, 50%) !default;\n$lighter-gray: mix(#fff, $gray, 90%) !default;\n\n$background-color: #fff !default;\n$code-background-color: #fafafa !default;\n$code-background-color-dark: $light-gray !default;\n$text-color: $dark-gray !default;\n$muted-text-color: mix(#fff, $text-color, 20%) !default;\n$border-color: $lighter-gray !default;\n$form-background-color: $lighter-gray !default;\n$footer-background-color: $lighter-gray !default;\n\n$primary-color: #6f777d !default;\n$success-color: #3fa63f !default;\n$warning-color: #d67f05 !default;\n$danger-color: #ee5f5b !default;\n$info-color: #3b9cba !default;\n$focus-color: $primary-color !default;\n$active-color: mix(#fff, $primary-color, 80%) !default;\n\n/* YIQ color contrast */\n$yiq-contrasted-dark-default: $dark-gray !default;\n$yiq-contrasted-light-default: #fff !default;\n$yiq-contrasted-threshold: 175 !default;\n$yiq-debug: false !default;\n\n/* brands */\n$behance-color: #1769ff !default;\n$bitbucket-color: #205081 !default;\n$dribbble-color: #ea4c89 !default;\n$facebook-color: #3b5998 !default;\n$flickr-color: #ff0084 !default;\n$foursquare-color: #0072b1 !default;\n$github-color: #171516 !default;\n$gitlab-color: #e24329 !default;\n$instagram-color: #517fa4 !default;\n$keybase-color: #ef7639 !default;\n$lastfm-color: #d51007 !default;\n$linkedin-color: #007bb6 !default;\n$mastodon-color: #2b90d9 !default;\n$pinterest-color: #cb2027 !default;\n$reddit-color: #ff4500 !default;\n$rss-color: #fa9b39 !default;\n$soundcloud-color: #ff3300 !default;\n$stackoverflow-color: #fe7a15 !default;\n$tumblr-color: #32506d !default;\n$twitter-color: #55acee !default;\n$vimeo-color: #1ab7ea !default;\n$vine-color: #00bf8f !default;\n$youtube-color: #bb0000 !default;\n$xing-color: #006567 !default;\n\n/* links */\n$link-color: mix(#000, $info-color, 20%) !default;\n$link-color-hover: mix(#000, $link-color, 25%) !default;\n$link-color-visited: mix(#fff, $link-color, 15%) !default;\n$masthead-link-color: $primary-color !default;\n$masthead-link-color-hover: mix(#000, $primary-color, 25%) !default;\n$navicon-link-color-hover: mix(#fff, $primary-color, 75%) !default;\n\n/* notices */\n$notice-background-mix: 80% !default;\n$code-notice-background-mix: 90% !default;\n\n/* syntax highlighting (base16) */\n$base00: #263238 !default;\n$base01: #2e3c43 !default;\n$base02: #314549 !default;\n$base03: #546e7a !default;\n$base04: #b2ccd6 !default;\n$base05: #eeffff !default;\n$base06: #eeffff !default;\n$base07: #ffffff !default;\n$base08: #f07178 !default;\n$base09: #f78c6c !default;\n$base0a: #ffcb6b !default;\n$base0b: #c3e88d !default;\n$base0c: #89ddff !default;\n$base0d: #82aaff !default;\n$base0e: #c792ea !default;\n$base0f: #ff5370 !default;\n\n/*\n Breakpoints\n ========================================================================== */\n\n$small: 600px !default;\n$medium: 768px !default;\n$medium-wide: 900px !default;\n$large: 1024px !default;\n$x-large: 1280px !default;\n$max-width: $x-large !default;\n\n/*\n Grid\n ========================================================================== */\n\n$right-sidebar-width-narrow: 200px !default;\n$right-sidebar-width: 300px !default;\n$right-sidebar-width-wide: 400px !default;\n\n/*\n Other\n ========================================================================== */\n\n$border-radius: 4px !default;\n$box-shadow: 0 1px 1px rgba(0, 0, 0, 0.125) !default;\n$nav-height: 2em !default;\n$nav-toggle-height: 2rem !default;\n$navicon-width: 1.5rem !default;\n$navicon-height: 0.25rem !default;\n$global-transition: all 0.2s ease-in-out !default;\n$intro-transition: intro 0.3s both !default;\n", + "//////////////////////////////\n// Default Variables\n//////////////////////////////\n$Breakpoint-Settings: (\n 'default media': all,\n 'default feature': min-width,\n 'default pair': width,\n\n 'force all media type': false,\n 'to ems': false,\n 'transform resolutions': true,\n\n 'no queries': false,\n 'no query fallbacks': false,\n\n 'base font size': 16px,\n\n 'legacy syntax': false\n);\n\n$breakpoint: () !default;\n\n//////////////////////////////\n// Imports\n//////////////////////////////\n@import \"settings\";\n@import \"context\";\n@import \"helpers\";\n@import \"parsers\";\n@import \"no-query\";\n\n@import \"respond-to\";\n\n@import \"legacy-settings\";\n\n//////////////////////////////\n// Breakpoint Mixin\n//////////////////////////////\n\n@mixin breakpoint($query, $no-query: false) {\n @include legacy-settings-warning;\n\n // Reset contexts\n @include private-breakpoint-reset-contexts();\n\n $breakpoint: breakpoint($query, false);\n\n $query-string: map-get($breakpoint, 'query');\n $query-fallback: map-get($breakpoint, 'fallback');\n\n $private-breakpoint-context-holder: map-get($breakpoint, 'context holder') !global;\n $private-breakpoint-query-count: map-get($breakpoint, 'query count') !global;\n\n // Allow for an as-needed override or usage of no query fallback.\n @if $no-query != false {\n $query-fallback: $no-query;\n }\n\n @if $query-fallback != false {\n $context-setter: private-breakpoint-set-context('no-query', $query-fallback);\n }\n\n // Print Out Query String\n @if not breakpoint-get('no queries') {\n @media #{$query-string} {\n @content;\n }\n }\n\n @if breakpoint-get('no query fallbacks') != false or breakpoint-get('no queries') == true {\n\n $type: type-of(breakpoint-get('no query fallbacks'));\n $print: false;\n\n @if ($type == 'bool') {\n $print: true;\n }\n @else if ($type == 'string') {\n @if $query-fallback == breakpoint-get('no query fallbacks') {\n $print: true;\n }\n }\n @else if ($type == 'list') {\n @each $wrapper in breakpoint-get('no query fallbacks') {\n @if $query-fallback == $wrapper {\n $print: true;\n }\n }\n }\n\n // Write Fallback\n @if ($query-fallback != false) and ($print == true) {\n $type-fallback: type-of($query-fallback);\n\n @if ($type-fallback != 'bool') {\n #{$query-fallback} & {\n @content;\n }\n }\n @else {\n @content;\n }\n }\n }\n\n @include private-breakpoint-reset-contexts();\n}\n\n\n@mixin mq($query, $no-query: false) {\n @include breakpoint($query, $no-query) {\n @content;\n }\n}\n", + "//////////////////////////////\n// Has Setting\n//////////////////////////////\n@function breakpoint-has($setting) {\n @if map-has-key($breakpoint, $setting) {\n @return true;\n }\n @else {\n @return false;\n }\n}\n\n//////////////////////////////\n// Get Settings\n//////////////////////////////\n@function breakpoint-get($setting) {\n @if breakpoint-has($setting) {\n @return map-get($breakpoint, $setting);\n }\n @else {\n @return map-get($Breakpoint-Settings, $setting);\n }\n}\n\n//////////////////////////////\n// Set Settings\n//////////////////////////////\n@function breakpoint-set($setting, $value) {\n @if (str-index($setting, '-') or str-index($setting, '_')) and str-index($setting, ' ') == null {\n @warn \"Words in Breakpoint settings should be separated by spaces, not dashes or underscores. Please replace dashes and underscores between words with spaces. Settings will not work as expected until changed.\";\n }\n $breakpoint: map-merge($breakpoint, ($setting: $value)) !global;\n @return true;\n}\n\n@mixin breakpoint-change($setting, $value) {\n $breakpoint-change: breakpoint-set($setting, $value);\n}\n\n@mixin breakpoint-set($setting, $value) {\n @include breakpoint-change($setting, $value);\n}\n\n@mixin bkpt-change($setting, $value) {\n @include breakpoint-change($setting, $value);\n}\n@mixin bkpt-set($setting, $value) {\n @include breakpoint-change($setting, $value);\n}\n\n//////////////////////////////\n// Remove Setting\n//////////////////////////////\n@function breakpoint-reset($settings...) {\n @if length($settings) == 1 {\n $settings: nth($settings, 1);\n }\n\n @each $setting in $settings {\n $breakpoint: map-remove($breakpoint, $setting) !global;\n }\n @return true;\n}\n\n@mixin breakpoint-reset($settings...) {\n $breakpoint-reset: breakpoint-reset($settings);\n}\n\n@mixin bkpt-reset($settings...) {\n $breakpoint-reset: breakpoint-reset($settings);\n}", + "//////////////////////////////\n// Private Breakpoint Variables\n//////////////////////////////\n$private-breakpoint-context-holder: ();\n$private-breakpoint-query-count: 0 !default;\n\n//////////////////////////////\n// Breakpoint Has Context\n// Returns whether or not you are inside a Breakpoint query\n//////////////////////////////\n@function breakpoint-has-context() {\n @if length($private-breakpoint-query-count) {\n @return true;\n }\n @else {\n @return false;\n }\n}\n\n//////////////////////////////\n// Breakpoint Get Context\n// $feature: Input feature to get it's current MQ context. Returns false if no context\n//////////////////////////////\n@function breakpoint-get-context($feature) {\n @if map-has-key($private-breakpoint-context-holder, $feature) {\n $get: map-get($private-breakpoint-context-holder, $feature);\n // Special handling of no-query from get side so /false/ prepends aren't returned\n @if $feature == 'no-query' {\n @if type-of($get) == 'list' and length($get) > 1 and nth($get, 1) == false {\n $get: nth($get, length($get));\n }\n }\n @return $get;\n }\n @else {\n @if breakpoint-has-context() and $feature == 'media' {\n @return breakpoint-get('default media');\n }\n @else {\n @return false;\n }\n }\n}\n\n//////////////////////////////\n// Private function to set context\n//////////////////////////////\n@function private-breakpoint-set-context($feature, $value) {\n @if $value == 'monochrome' {\n $feature: 'monochrome';\n }\n\n $current: map-get($private-breakpoint-context-holder, $feature);\n @if $current and length($current) == $private-breakpoint-query-count {\n @warn \"You have already queried against `#{$feature}`. Unexpected things may happen if you query against the same feature more than once in the same `and` query. Breakpoint is overwriting the current context with `#{$value}`\";\n }\n\n @if not map-has-key($private-breakpoint-context-holder, $feature) {\n $v-holder: ();\n @for $i from 1 to $private-breakpoint-query-count {\n @if $feature == 'media' {\n $v-holder: append($v-holder, breakpoint-get('default media'));\n }\n @else {\n $v-holder: append($v-holder, false);\n }\n }\n $v-holder: append($v-holder, $value);\n $private-breakpoint-context-holder: map-merge($private-breakpoint-context-holder, ($feature: $v-holder)) !global;\n }\n @else {\n $v-holder: map-get($private-breakpoint-context-holder, $feature);\n $length: length($v-holder);\n @for $i from $length to $private-breakpoint-query-count - 1 {\n @if $feature == 'media' {\n $v-holder: append($v-holder, breakpoint-get('default media'));\n }\n @else {\n $v-holder: append($v-holder, false);\n }\n }\n $v-holder: append($v-holder, $value);\n $private-breakpoint-context-holder: map-merge($private-breakpoint-context-holder, ($feature: $v-holder)) !global;\n }\n\n @return true;\n}\n\n//////////////////////////////\n// Private function to reset context\n//////////////////////////////\n@mixin private-breakpoint-reset-contexts {\n $private-breakpoint-context-holder: () !global;\n $private-breakpoint-query-count: 0 !global;\n}", + "//////////////////////////////\n// Converts the input value to Base EMs\n//////////////////////////////\n@function breakpoint-to-base-em($value) {\n $value-unit: unit($value);\n\n // Will convert relative EMs into root EMs.\n @if breakpoint-get('base font size') and type-of(breakpoint-get('base font size')) == 'number' and $value-unit == 'em' {\n $base-unit: unit(breakpoint-get('base font size'));\n\n @if $base-unit == 'px' or $base-unit == '%' or $base-unit == 'em' or $base-unit == 'pt' {\n @return base-conversion($value) / base-conversion(breakpoint-get('base font size')) * 1em;\n }\n @else {\n @warn '#{breakpoint-get(\\'base font size\\')} is not set in valid units for font size!';\n @return false;\n }\n }\n @else {\n @return base-conversion($value);\n }\n}\n\n@function base-conversion($value) {\n $unit: unit($value);\n\n @if $unit == 'px' {\n @return $value / 16px * 1em;\n }\n @else if $unit == '%' {\n @return $value / 100% * 1em;\n }\n @else if $unit == 'em' {\n @return $value;\n }\n @else if $unit == 'pt' {\n @return $value / 12pt * 1em;\n }\n @else {\n @return $value;\n// @warn 'Everything is terrible! What have you done?!';\n }\n}\n\n//////////////////////////////\n// Returns whether the feature can have a min/max pair\n//////////////////////////////\n$breakpoint-min-max-features: 'color',\n 'color-index',\n 'aspect-ratio',\n 'device-aspect-ratio',\n 'device-height',\n 'device-width',\n 'height',\n 'monochrome',\n 'resolution',\n 'width';\n\n@function breakpoint-min-max($feature) {\n @each $item in $breakpoint-min-max-features {\n @if $feature == $item {\n @return true;\n }\n }\n @return false;\n}\n\n//////////////////////////////\n// Returns whether the feature can have a string value\n//////////////////////////////\n$breakpoint-string-features: 'orientation',\n 'scan',\n 'color',\n 'aspect-ratio',\n 'device-aspect-ratio',\n 'pointer',\n 'luminosity';\n\n@function breakpoint-string-value($feature) {\n @each $item in $breakpoint-string-features {\n @if breakpoint-min-max($item) {\n @if $feature == 'min-#{$item}' or $feature == 'max-#{$item}' {\n @return true;\n }\n }\n @else if $feature == $item {\n @return true;\n }\n }\n @return false;\n}\n\n//////////////////////////////\n// Returns whether the feature is a media type\n//////////////////////////////\n$breakpoint-media-types: 'all',\n 'braille',\n 'embossed',\n 'handheld',\n 'print',\n 'projection',\n 'screen',\n 'speech',\n 'tty',\n 'tv';\n\n@function breakpoint-is-media($feature) {\n @each $media in $breakpoint-media-types {\n @if ($feature == $media) or ($feature == 'not #{$media}') or ($feature == 'only #{$media}') {\n @return true;\n }\n }\n\n @return false;\n}\n\n//////////////////////////////\n// Returns whether the feature can stand alone\n//////////////////////////////\n$breakpoint-single-string-features: 'color',\n 'color-index',\n 'grid',\n 'monochrome';\n\n@function breakpoint-single-string($feature) {\n @each $item in $breakpoint-single-string-features {\n @if $feature == $item {\n @return true;\n }\n }\n @return false;\n}\n\n//////////////////////////////\n// Returns whether the feature\n//////////////////////////////\n@function breakpoint-is-resolution($feature) {\n $resolutions: 'device-pixel-ratio', 'dpr';\n\n @if breakpoint-get('transform resolutions') {\n $resolutions: append($resolutions, 'resolution');\n }\n\n @each $reso in $resolutions {\n @if index($feature, $reso) or index($feature, 'min-#{$reso}') or index($feature, 'max-#{$reso}') {\n @return true;\n }\n }\n\n @return false;\n}\n", + "//////////////////////////////\n// Import Parser Pieces\n//////////////////////////////\n@import \"parsers/query\";\n@import \"parsers/single\";\n@import \"parsers/double\";\n@import \"parsers/triple\";\n@import \"parsers/resolution\";\n\n$Memo-Exists: function-exists(memo-get) and function-exists(memo-set);\n\n//////////////////////////////\n// Breakpoint Function\n//////////////////////////////\n@function breakpoint($query, $contexts...) {\n $run: true;\n $return: ();\n\n // Grab the Memo Output if Memoization can be a thing\n @if $Memo-Exists {\n $return: memo-get(breakpoint, breakpoint $query $contexts);\n\n @if $return != null {\n $run: false;\n }\n }\n\n @if not $Memo-Exists or $run {\n // Internal Variables\n $query-string: '';\n $query-fallback: false;\n $return: ();\n\n // Reserve Global Private Breakpoint Context\n $holder-context: $private-breakpoint-context-holder;\n $holder-query-count: $private-breakpoint-query-count;\n\n // Reset Global Private Breakpoint Context\n $private-breakpoint-context-holder: () !global;\n $private-breakpoint-query-count: 0 !global;\n\n\n // Test to see if it's a comma-separated list\n $or-list: if(list-separator($query) == 'comma', true, false);\n\n\n @if ($or-list == false and breakpoint-get('legacy syntax') == false) {\n $query-string: breakpoint-parse($query);\n }\n @else {\n $length: length($query);\n\n $last: nth($query, $length);\n $query-fallback: breakpoint-no-query($last);\n\n @if ($query-fallback != false) {\n $length: $length - 1;\n }\n\n @if (breakpoint-get('legacy syntax') == true) {\n $mq: ();\n\n @for $i from 1 through $length {\n $mq: append($mq, nth($query, $i), comma);\n }\n\n $query-string: breakpoint-parse($mq);\n }\n @else {\n $query-string: '';\n @for $i from 1 through $length {\n $query-string: $query-string + if($i == 1, '', ', ') + breakpoint-parse(nth($query, $i));\n }\n }\n }\n\n $return: ('query': $query-string,\n 'fallback': $query-fallback,\n 'context holder': $private-breakpoint-context-holder,\n 'query count': $private-breakpoint-query-count\n );\n @if length($contexts) > 0 and nth($contexts, 1) != false {\n @if $query-fallback != false {\n $context-setter: private-breakpoint-set-context('no-query', $query-fallback);\n }\n $context-map: ();\n @each $context in $contexts {\n $context-map: map-merge($context-map, ($context: breakpoint-get-context($context)));\n }\n $return: map-merge($return, (context: $context-map));\n }\n\n // Reset Global Private Breakpoint Context\n $private-breakpoint-context-holder: () !global;\n $private-breakpoint-query-count: 0 !global;\n\n @if $Memo-Exists {\n $holder: memo-set(breakpoint, breakpoint $query $contexts, $return);\n }\n }\n\n @return $return;\n}\n\n//////////////////////////////\n// General Breakpoint Parser\n//////////////////////////////\n@function breakpoint-parse($query) {\n // Increase number of 'and' queries\n $private-breakpoint-query-count: $private-breakpoint-query-count + 1 !global;\n\n // Set up Media Type\n $query-print: '';\n\n $force-all: ((breakpoint-get('force all media type') == true) and (breakpoint-get('default media') == 'all'));\n $empty-media: true;\n @if ($force-all == true) or (breakpoint-get('default media') != 'all') {\n // Force the print of the default media type if (force all is true and default media type is all) or (default media type is not all)\n $query-print: breakpoint-get('default media');\n $empty-media: false;\n }\n\n\n $query-resolution: false;\n\n $query-holder: breakpoint-parse-query($query);\n\n\n\n // Loop over each parsed out query and write it to $query-print\n $first: true;\n\n @each $feature in $query-holder {\n $length: length($feature);\n\n // Parse a single feature\n @if ($length == 1) {\n // Feature is currently a list, grab the actual value\n $feature: nth($feature, 1);\n\n // Media Type must by convention be the first item, so it's safe to flat override $query-print, which right now should only be the default media type\n @if (breakpoint-is-media($feature)) {\n @if ($force-all == true) or ($feature != 'all') {\n // Force the print of the default media type if (force all is true and default media type is all) or (default media type is not all)\n $query-print: $feature;\n $empty-media: false;\n\n // Set Context\n $context-setter: private-breakpoint-set-context(media, $query-print);\n }\n }\n @else {\n $parsed: breakpoint-parse-single($feature, $empty-media, $first);\n $query-print: '#{$query-print} #{$parsed}';\n $first: false;\n }\n }\n // Parse a double feature\n @else if ($length == 2) {\n @if (breakpoint-is-resolution($feature) != false) {\n $query-resolution: $feature;\n }\n @else {\n $parsed: null;\n // If it's a string/number pair,\n // we check to see if one is a single-string value,\n // then we parse it as a normal double\n $alpha: nth($feature, 1);\n $beta: nth($feature, 2);\n @if breakpoint-single-string($alpha) or breakpoint-single-string($beta) {\n $parsed: breakpoint-parse-single($alpha, $empty-media, $first);\n $query-print: '#{$query-print} #{$parsed}';\n $first: false;\n $parsed: breakpoint-parse-single($beta, $empty-media, $first);\n $query-print: '#{$query-print} #{$parsed}';\n }\n @else {\n $parsed: breakpoint-parse-double($feature, $empty-media, $first);\n $query-print: '#{$query-print} #{$parsed}';\n $first: false;\n }\n }\n }\n // Parse a triple feature\n @else if ($length == 3) {\n $parsed: breakpoint-parse-triple($feature, $empty-media, $first);\n $query-print: '#{$query-print} #{$parsed}';\n $first: false;\n }\n\n }\n\n @if ($query-resolution != false) {\n $query-print: breakpoint-build-resolution($query-print, $query-resolution, $empty-media, $first);\n }\n\n // Loop through each feature that's been detected so far and append 'false' to the the value list to increment their counters\n @each $f, $v in $private-breakpoint-context-holder {\n $v-holder: $v;\n $length: length($v-holder);\n @if length($v-holder) < $private-breakpoint-query-count {\n @for $i from $length to $private-breakpoint-query-count {\n @if $f == 'media' {\n $v-holder: append($v-holder, breakpoint-get('default media'));\n }\n @else {\n $v-holder: append($v-holder, false);\n }\n }\n }\n $private-breakpoint-context-holder: map-merge($private-breakpoint-context-holder, ($f: $v-holder)) !global;\n }\n\n @return $query-print;\n}\n", + "@function breakpoint-parse-query($query) {\n // Parse features out of an individual query\n $feature-holder: ();\n $query-holder: ();\n $length: length($query);\n\n @if $length == 2 {\n // If we've got a string/number, number/string, check to see if it's a valid string/number pair or two singles\n @if (type-of(nth($query, 1)) == 'string' and type-of(nth($query, 2)) == 'number') or (type-of(nth($query, 1)) == 'number' and type-of(nth($query, 2)) == 'string') {\n\n $number: '';\n $value: '';\n\n @if type-of(nth($query, 1)) == 'string' {\n $number: nth($query, 2);\n $value: nth($query, 1);\n }\n @else {\n $number: nth($query, 1);\n $value: nth($query, 2);\n }\n\n // If the string value can be a single value, check to see if the number passed in is a valid input for said single value. Fortunately, all current single-value options only accept unitless numbers, so this check is easy.\n @if breakpoint-single-string($value) {\n @if unitless($number) {\n $feature-holder: append($value, $number, space);\n $query-holder: append($query-holder, $feature-holder, comma);\n @return $query-holder;\n }\n }\n // If the string is a media type, split the query\n @if breakpoint-is-media($value) {\n $query-holder: append($query-holder, nth($query, 1));\n $query-holder: append($query-holder, nth($query, 2));\n @return $query-holder;\n }\n // If it's not a single feature, we're just going to assume it's a proper string/value pair, and roll with it.\n @else {\n $feature-holder: append($value, $number, space);\n $query-holder: append($query-holder, $feature-holder, comma);\n @return $query-holder;\n }\n\n }\n // If they're both numbers, we assume it's a double and roll with that\n @else if (type-of(nth($query, 1)) == 'number' and type-of(nth($query, 2)) == 'number') {\n $feature-holder: append(nth($query, 1), nth($query, 2), space);\n $query-holder: append($query-holder, $feature-holder, comma);\n @return $query-holder;\n }\n // If they're both strings and neither are singles, we roll with that.\n @else if (type-of(nth($query, 1)) == 'string' and type-of(nth($query, 2)) == 'string') {\n @if not breakpoint-single-string(nth($query, 1)) and not breakpoint-single-string(nth($query, 2)) {\n $feature-holder: append(nth($query, 1), nth($query, 2), space);\n $query-holder: append($query-holder, $feature-holder, comma);\n @return $query-holder;\n }\n }\n }\n @else if $length == 3 {\n // If we've got three items and none is a list, we check to see\n @if type-of(nth($query, 1)) != 'list' and type-of(nth($query, 2)) != 'list' and type-of(nth($query, 3)) != 'list' {\n // If none of the items are single string values and none of the values are media values, we're good.\n @if (not breakpoint-single-string(nth($query, 1)) and not breakpoint-single-string(nth($query, 2)) and not breakpoint-single-string(nth($query, 3))) and ((not breakpoint-is-media(nth($query, 1)) and not breakpoint-is-media(nth($query, 2)) and not breakpoint-is-media(nth($query, 3)))) {\n $feature-holder: append(nth($query, 1), nth($query, 2), space);\n $feature-holder: append($feature-holder, nth($query, 3), space);\n $query-holder: append($query-holder, $feature-holder, comma);\n @return $query-holder;\n }\n // let's check to see if the first item is a media type\n @else if breakpoint-is-media(nth($query, 1)) {\n $query-holder: append($query-holder, nth($query, 1));\n $feature-holder: append(nth($query, 2), nth($query, 3), space);\n $query-holder: append($query-holder, $feature-holder);\n @return $query-holder;\n }\n }\n }\n\n // If it's a single item, or if it's not a special case double or triple, we can simply return the query.\n @return $query;\n}\n", + "//////////////////////////////\n// Import Pieces\n//////////////////////////////\n@import \"single/default\";\n\n@function breakpoint-parse-single($feature, $empty-media, $first) {\n $parsed: '';\n $leader: '';\n // If we're forcing\n @if not ($empty-media) or not ($first) {\n $leader: 'and ';\n }\n\n // If it's a single feature that can stand alone, we let it\n @if (breakpoint-single-string($feature)) {\n $parsed: $feature;\n // Set Context\n $context-setter: private-breakpoint-set-context($feature, $feature);\n }\n // If it's not a stand alone feature, we pass it off to the default handler.\n @else {\n $parsed: breakpoint-parse-default($feature);\n }\n\n @return $leader + '(' + $parsed + ')';\n}\n", + "@function breakpoint-parse-default($feature) {\n $default: breakpoint-get('default feature');\n\n // Set Context\n $context-setter: private-breakpoint-set-context($default, $feature);\n\n @if (breakpoint-get('to ems') == true) and (type-of($feature) == 'number') {\n @return '#{$default}: #{breakpoint-to-base-em($feature)}';\n }\n @else {\n @return '#{$default}: #{$feature}';\n }\n}\n", + "//////////////////////////////\n// Import Pieces\n//////////////////////////////\n@import \"double/default-pair\";\n@import \"double/double-string\";\n@import \"double/default\";\n\n@function breakpoint-parse-double($feature, $empty-media, $first) {\n $parsed: '';\n $leader: '';\n // If we're forcing\n @if not ($empty-media) or not ($first) {\n $leader: 'and ';\n }\n\n $first: nth($feature, 1);\n $second: nth($feature, 2);\n\n // If we've got two numbers, we know we need to use the default pair because there are no media queries that has a media feature that is a number\n @if type-of($first) == 'number' and type-of($second) == 'number' {\n $parsed: breakpoint-parse-default-pair($first, $second);\n }\n // If they are both strings, we send it through the string parser\n @else if type-of($first) == 'string' and type-of($second) == 'string' {\n $parsed: breakpoint-parse-double-string($first, $second);\n }\n // If it's a string/number pair, we parse it as a normal double\n @else {\n $parsed: breakpoint-parse-double-default($first, $second);\n }\n\n @return $leader + $parsed;\n}\n", + "@function breakpoint-parse-default-pair($first, $second) {\n $default: breakpoint-get('default pair');\n $min: '';\n $max: '';\n\n // Sort into min and max\n $min: min($first, $second);\n $max: max($first, $second);\n\n // Set Context\n $context-setter: private-breakpoint-set-context(min-#{$default}, $min);\n $context-setter: private-breakpoint-set-context(max-#{$default}, $max);\n\n // Make them EMs if need be\n @if (breakpoint-get('to ems') == true) {\n $min: breakpoint-to-base-em($min);\n $max: breakpoint-to-base-em($max);\n }\n\n @return '(min-#{$default}: #{$min}) and (max-#{$default}: #{$max})';\n}\n", + "@function breakpoint-parse-double-string($first, $second) {\n $feature: '';\n $value: '';\n\n // Test to see which is the feature and which is the value\n @if (breakpoint-string-value($first) == true) {\n $feature: $first;\n $value: $second;\n }\n @else if (breakpoint-string-value($second) == true) {\n $feature: $second;\n $value: $first;\n }\n @else {\n @warn \"Neither #{$first} nor #{$second} is a valid media query name.\";\n }\n\n // Set Context\n $context-setter: private-breakpoint-set-context($feature, $value);\n\n @return '(#{$feature}: #{$value})';\n}", + "@function breakpoint-parse-double-default($first, $second) {\n $feature: '';\n $value: '';\n\n @if type-of($first) == 'string' {\n $feature: $first;\n $value: $second;\n }\n @else {\n $feature: $second;\n $value: $first;\n }\n\n // Set Context\n $context-setter: private-breakpoint-set-context($feature, $value);\n\n @if (breakpoint-get('to ems') == true) {\n $value: breakpoint-to-base-em($value);\n }\n\n @return '(#{$feature}: #{$value})'\n}\n", + "//////////////////////////////\n// Import Pieces\n//////////////////////////////\n@import \"triple/default\";\n\n@function breakpoint-parse-triple($feature, $empty-media, $first) {\n $parsed: '';\n $leader: '';\n\n // If we're forcing\n @if not ($empty-media) or not ($first) {\n $leader: 'and ';\n }\n\n // separate the string features from the value numbers\n $string: null;\n $numbers: null;\n @each $val in $feature {\n @if type-of($val) == string {\n $string: $val;\n }\n @else {\n @if type-of($numbers) == 'null' {\n $numbers: $val;\n }\n @else {\n $numbers: append($numbers, $val);\n }\n }\n }\n\n $parsed: breakpoint-parse-triple-default($string, nth($numbers, 1), nth($numbers, 2));\n\n @return $leader + $parsed;\n\n}\n", + "@function breakpoint-parse-triple-default($feature, $first, $second) {\n\n // Sort into min and max\n $min: min($first, $second);\n $max: max($first, $second);\n\n // Set Context\n $context-setter: private-breakpoint-set-context(min-#{$feature}, $min);\n $context-setter: private-breakpoint-set-context(max-#{$feature}, $max);\n\n // Make them EMs if need be\n @if (breakpoint-get('to ems') == true) {\n $min: breakpoint-to-base-em($min);\n $max: breakpoint-to-base-em($max);\n }\n\n @return '(min-#{$feature}: #{$min}) and (max-#{$feature}: #{$max})';\n}\n", + "@import \"resolution/resolution\";\n\n@function breakpoint-build-resolution($query-print, $query-resolution, $empty-media, $first) {\n $leader: '';\n // If we're forcing\n @if not ($empty-media) or not ($first) {\n $leader: 'and ';\n }\n\n @if breakpoint-get('transform resolutions') and $query-resolution {\n $resolutions: breakpoint-make-resolutions($query-resolution);\n $length: length($resolutions);\n $query-holder: '';\n\n @for $i from 1 through $length {\n $query: '#{$query-print} #{$leader}#{nth($resolutions, $i)}';\n @if $i == 1 {\n $query-holder: $query;\n }\n @else {\n $query-holder: '#{$query-holder}, #{$query}';\n }\n }\n\n @return $query-holder;\n }\n @else {\n // Return with attached resolution\n @return $query-print;\n }\n}\n", + "@function breakpoint-make-resolutions($resolution) {\n $length: length($resolution);\n\n $output: ();\n\n @if $length == 2 {\n $feature: '';\n $value: '';\n\n // Find which is number\n @if type-of(nth($resolution, 1)) == 'number' {\n $value: nth($resolution, 1);\n }\n @else {\n $value: nth($resolution, 2);\n }\n\n // Determine min/max/standard\n @if index($resolution, 'min-resolution') {\n $feature: 'min-';\n }\n @else if index($resolution, 'max-resolution') {\n $feature: 'max-';\n }\n\n $standard: '(#{$feature}resolution: #{$value})';\n\n // If we're not dealing with dppx,\n @if unit($value) != 'dppx' {\n $base: 96dpi;\n @if unit($value) == 'dpcm' {\n $base: 243.84dpcm;\n }\n // Write out feature tests\n $webkit: '';\n $moz: '';\n $webkit: '(-webkit-#{$feature}device-pixel-ratio: #{$value / $base})';\n $moz: '(#{$feature}-moz-device-pixel-ratio: #{$value / $base})';\n // Append to output\n $output: append($output, $standard, space);\n $output: append($output, $webkit, space);\n $output: append($output, $moz, space);\n }\n @else {\n $webkit: '';\n $moz: '';\n $webkit: '(-webkit-#{$feature}device-pixel-ratio: #{$value / 1dppx})';\n $moz: '(#{$feature}-moz-device-pixel-ratio: #{$value / 1dppx})';\n $fallback: '(#{$feature}resolution: #{$value / 1dppx * 96dpi})';\n // Append to output\n $output: append($output, $standard, space);\n $output: append($output, $webkit, space);\n $output: append($output, $moz, space);\n $output: append($output, $fallback, space);\n }\n\n }\n\n @return $output;\n}\n", + "@function breakpoint-no-query($query) {\n @if type-of($query) == 'list' {\n $keyword: nth($query, 1);\n\n @if type-of($keyword) == 'string' and ($keyword == 'no-query' or $keyword == 'no query' or $keyword == 'fallback') {\n @return nth($query, 2);\n }\n @else {\n @return false;\n }\n }\n @else {\n @return false;\n }\n}\n", + "////////////////////////\n// Default the Breakpoints variable\n////////////////////////\n$breakpoints: () !default;\n$BREAKPOINTS: () !default;\n\n////////////////////////\n// Respond-to API Mixin\n////////////////////////\n@mixin respond-to($context, $no-query: false) {\n @if length($breakpoints) > 0 and length($BREAKPOINTS) == 0 {\n @warn \"In order to avoid variable namespace collisions, we have updated the way to add breakpoints for respond-to. Please change all instances of `$breakpoints: add-breakpoint()` to `@include add-breakpoint()`. The `add-breakpoint()` function will be deprecated in a future release.\";\n $BREAKPOINTS: $breakpoints !global;\n $breakpoints: () !global;\n }\n\n @if type-of($BREAKPOINTS) != 'map' {\n // Just in case someone writes gibberish to the $breakpoints variable.\n @warn \"Your breakpoints aren't a map! `respond-to` expects a map. Please check the value of $BREAKPOINTS variable.\";\n @content;\n }\n @else if map-has-key($BREAKPOINTS, $context) {\n @include breakpoint(map-get($BREAKPOINTS, $context), $no-query) {\n @content;\n }\n }\n @else if not map-has-key($BREAKPOINTS, $context) {\n @warn \"`#{$context}` isn't a defined breakpoint! Please add it using `$breakpoints: add-breakpoint(`#{$context}`, $value);`\";\n @content;\n }\n @else {\n @warn \"You haven't created any breakpoints yet! Make some already! `@include add-breakpoint($name, $bkpt)`\";\n @content;\n }\n}\n\n//////////////////////////////\n// Add Breakpoint to Breakpoints\n// TODO: Remove function in next release\n//////////////////////////////\n@function add-breakpoint($name, $bkpt, $overwrite: false) {\n $output: ($name: $bkpt);\n\n @if length($breakpoints) == 0 {\n @return $output;\n }\n @else {\n @if map-has-key($breakpoints, $name) and $overwrite != true {\n @warn \"You already have a breakpoint named `#{$name}`, please choose another breakpoint name, or pass in `$overwrite: true` to overwrite the previous breakpoint.\";\n @return $breakpoints;\n }\n @else if not map-has-key($breakpoints, $name) or $overwrite == true {\n @return map-merge($breakpoints, $output);\n }\n }\n}\n\n@mixin add-breakpoint($name, $bkpt, $overwrite: false) {\n $output: ($name: $bkpt);\n\n @if length($BREAKPOINTS) == 0 {\n $BREAKPOINTS: $output !global;\n }\n @else {\n @if map-has-key($BREAKPOINTS, $name) and $overwrite != true {\n @warn \"You already have a breakpoint named `#{$name}`, please choose another breakpoint name, or pass in `$overwrite: true` to overwrite the previous breakpoint.\";\n $BREAKPOINTS: $BREAKPOINTS !global;\n }\n @else if not map-has-key($BREAKPOINTS, $name) or $overwrite == true {\n $BREAKPOINTS: map-merge($BREAKPOINTS, $output) !global;\n }\n }\n}\n\n@function get-breakpoint($name: false) {\n @if $name == false {\n @return $BREAKPOINTS;\n }\n @else {\n @return map-get($BREAKPOINTS, $name);\n }\n}\n", + "@mixin legacy-settings-warning {\n $legacyVars: (\n 'default-media': 'default media',\n 'default-feature': 'default feature',\n 'force-media-all': 'force all media type',\n 'to-ems': 'to ems',\n 'resolutions': 'transform resolutions',\n 'no-queries': 'no queries',\n 'no-query-fallbacks': 'no query fallbacks',\n 'base-font-size': 'base font size',\n 'legacy-syntax': 'legacy syntax'\n );\n\n @each $legacy, $new in $legacyVars {\n @if global-variable-exists('breakpoint-' + $legacy) {\n @warn \"In order to avoid variable namspace collisions, we have updated the way to change settings for Breakpoint. Please change all instances of `$breakpoint-#{$legacy}: {{setting}}` to `@include breakpoint-set('#{$new}', {{setting}})`. Variable settings, as well as this warning will be deprecated in a future release.\"\n }\n };\n\n //////////////////////////////\n // Hand correct each setting\n //////////////////////////////\n @if global-variable-exists('breakpoint-default-media') and $breakpoint-default-media != breakpoint-get('default media') {\n @include breakpoint-set('default media', $breakpoint-default-media);\n }\n @if global-variable-exists('breakpoint-default-feature') and $breakpoint-default-feature != breakpoint-get('default feature') {\n @include breakpoint-set('default feature', $breakpoint-default-feature);\n }\n @if global-variable-exists('breakpoint-force-media-all') and $breakpoint-force-media-all != breakpoint-get('force all media type') {\n @include breakpoint-set('force all media type', $breakpoint-force-media-all);\n }\n @if global-variable-exists('breakpoint-to-ems') and $breakpoint-to-ems != breakpoint-get('to ems') {\n @include breakpoint-set('to ems', $breakpoint-to-ems);\n }\n @if global-variable-exists('breakpoint-resolutions') and $breakpoint-resolutions != breakpoint-get('transform resolutions') {\n @include breakpoint-set('transform resolutions', $breakpoint-resolutions);\n }\n @if global-variable-exists('breakpoint-no-queries') and $breakpoint-no-queries != breakpoint-get('no queries') {\n @include breakpoint-set('no queries', $breakpoint-no-queries);\n }\n @if global-variable-exists('breakpoint-no-query-fallbacks') and $breakpoint-no-query-fallbacks != breakpoint-get('no query fallbacks') {\n @include breakpoint-set('no query fallbacks', $breakpoint-no-query-fallbacks);\n }\n @if global-variable-exists('breakpoint-base-font-size') and $breakpoint-base-font-size != breakpoint-get('base font size') {\n @include breakpoint-set('base font size', $breakpoint-base-font-size);\n }\n @if global-variable-exists('breakpoint-legacy-syntax') and $breakpoint-legacy-syntax != breakpoint-get('legacy syntax') {\n @include breakpoint-set('legacy syntax', $breakpoint-legacy-syntax);\n }\n}", + "/* Magnific Popup CSS */\n\n@import \"settings\";\n\n////////////////////////\n//\n// Contents:\n//\n// 1. Default Settings\n// 2. General styles\n// - Transluscent overlay\n// - Containers, wrappers\n// - Cursors\n// - Helper classes\n// 3. Appearance\n// - Preloader & text that displays error messages\n// - CSS reset for buttons\n// - Close icon\n// - \"1 of X\" counter\n// - Navigation (left/right) arrows\n// - Iframe content type styles\n// - Image content type styles\n// - Media query where size of arrows is reduced\n// - IE7 support\n//\n////////////////////////\n\n\n\n////////////////////////\n// 1. Default Settings\n////////////////////////\n\n$mfp-overlay-color: #0b0b0b !default;\n$mfp-overlay-opacity: 0.8 !default;\n$mfp-shadow: 0 0 8px rgba(0, 0, 0, 0.6) !default; // shadow on image or iframe\n$mfp-popup-padding-left: 8px !default; // Padding from left and from right side\n$mfp-popup-padding-left-mobile: 6px !default; // Same as above, but is applied when width of window is less than 800px\n\n$mfp-z-index-base: 1040 !default; // Base z-index of popup\n$mfp-include-arrows: true !default; // include styles for nav arrows\n$mfp-controls-opacity: 0.65 !default;\n$mfp-controls-color: #FFF !default;\n$mfp-controls-border-color: #3F3F3F !default;\n$mfp-inner-close-icon-color: #333 !default;\n$mfp-controls-text-color: #CCC !default; // Color of preloader and \"1 of X\" indicator\n$mfp-controls-text-color-hover: #FFF !default;\n$mfp-IE7support: true !default; // Very basic IE7 support\n\n// Iframe-type options\n$mfp-include-iframe-type: true !default;\n$mfp-iframe-padding-top: 40px !default;\n$mfp-iframe-background: #000 !default;\n$mfp-iframe-max-width: 900px !default;\n$mfp-iframe-ratio: 9/16 !default;\n\n// Image-type options\n$mfp-include-image-type: true !default;\n$mfp-image-background: #444 !default;\n$mfp-image-padding-top: 40px !default;\n$mfp-image-padding-bottom: 40px !default;\n$mfp-include-mobile-layout-for-image: true !default; // Removes paddings from top and bottom\n\n// Image caption options\n$mfp-caption-title-color: #F3F3F3 !default;\n$mfp-caption-subtitle-color: #BDBDBD !default;\n\n// A11y\n$mfp-use-visuallyhidden: false !default; // Hide content from browsers, but make it available for screen readers\n\n\n\n////////////////////////\n// 2. General styles\n////////////////////////\n\n// Transluscent overlay\n.mfp-bg {\n top: 0;\n left: 0;\n width: 100%;\n height: 100%;\n z-index: $mfp-z-index-base + 2;\n overflow: hidden;\n position: fixed;\n\n background: $mfp-overlay-color;\n opacity: $mfp-overlay-opacity;\n @if $mfp-IE7support {\n filter: unquote(\"alpha(opacity=#{$mfp-overlay-opacity*100})\");\n }\n}\n\n// Wrapper for popup\n.mfp-wrap {\n top: 0;\n left: 0;\n width: 100%;\n height: 100%;\n z-index: $mfp-z-index-base + 3;\n position: fixed;\n outline: none !important;\n -webkit-backface-visibility: hidden; // fixes webkit bug that can cause \"false\" scrollbar\n}\n\n// Root container\n.mfp-container {\n text-align: center;\n position: absolute;\n width: 100%;\n height: 100%;\n left: 0;\n top: 0;\n padding: 0 $mfp-popup-padding-left;\n -webkit-box-sizing: border-box;\n -moz-box-sizing: border-box;\n box-sizing: border-box;\n}\n\n// Vertical centerer helper\n.mfp-container {\n &:before {\n content: '';\n display: inline-block;\n height: 100%;\n vertical-align: middle;\n }\n}\n\n// Remove vertical centering when popup has class `mfp-align-top`\n.mfp-align-top {\n .mfp-container {\n &:before {\n display: none;\n }\n }\n}\n\n// Popup content holder\n.mfp-content {\n position: relative;\n display: inline-block;\n vertical-align: middle;\n margin: 0 auto;\n text-align: left;\n z-index: $mfp-z-index-base + 5;\n}\n.mfp-inline-holder,\n.mfp-ajax-holder {\n .mfp-content {\n width: 100%;\n cursor: auto;\n }\n}\n\n// Cursors\n.mfp-ajax-cur {\n cursor: progress;\n}\n.mfp-zoom-out-cur {\n &, .mfp-image-holder .mfp-close {\n cursor: -moz-zoom-out;\n cursor: -webkit-zoom-out;\n cursor: zoom-out;\n }\n}\n.mfp-zoom {\n cursor: pointer;\n cursor: -webkit-zoom-in;\n cursor: -moz-zoom-in;\n cursor: zoom-in;\n}\n.mfp-auto-cursor {\n .mfp-content {\n cursor: auto;\n }\n}\n\n.mfp-close,\n.mfp-arrow,\n.mfp-preloader,\n.mfp-counter {\n -webkit-user-select:none;\n -moz-user-select: none;\n user-select: none;\n}\n\n// Hide the image during the loading\n.mfp-loading {\n &.mfp-figure {\n display: none;\n }\n}\n\n// Helper class that hides stuff\n@if $mfp-use-visuallyhidden {\n // From HTML5 Boilerplate https://github.com/h5bp/html5-boilerplate/blob/v4.2.0/doc/css.md#visuallyhidden\n .mfp-hide {\n border: 0 !important;\n clip: rect(0 0 0 0) !important;\n height: 1px !important;\n margin: -1px !important;\n overflow: hidden !important;\n padding: 0 !important;\n position: absolute !important;\n width: 1px !important;\n }\n} @else {\n .mfp-hide {\n display: none !important;\n }\n}\n\n\n////////////////////////\n// 3. Appearance\n////////////////////////\n\n// Preloader and text that displays error messages\n.mfp-preloader {\n color: $mfp-controls-text-color;\n position: absolute;\n top: 50%;\n width: auto;\n text-align: center;\n margin-top: -0.8em;\n left: 8px;\n right: 8px;\n z-index: $mfp-z-index-base + 4;\n a {\n color: $mfp-controls-text-color;\n &:hover {\n color: $mfp-controls-text-color-hover;\n }\n }\n}\n\n// Hide preloader when content successfully loaded\n.mfp-s-ready {\n .mfp-preloader {\n display: none;\n }\n}\n\n// Hide content when it was not loaded\n.mfp-s-error {\n .mfp-content {\n display: none;\n }\n}\n\n// CSS-reset for buttons\nbutton {\n &.mfp-close,\n &.mfp-arrow {\n overflow: visible;\n cursor: pointer;\n background: transparent;\n border: 0;\n -webkit-appearance: none;\n display: block;\n outline: none;\n padding: 0;\n z-index: $mfp-z-index-base + 6;\n -webkit-box-shadow: none;\n box-shadow: none;\n }\n &::-moz-focus-inner {\n padding: 0;\n border: 0\n }\n}\n\n\n// Close icon\n.mfp-close {\n width: 44px;\n height: 44px;\n line-height: 44px;\n\n position: absolute;\n right: 0;\n top: 0;\n text-decoration: none;\n text-align: center;\n opacity: $mfp-controls-opacity;\n @if $mfp-IE7support {\n filter: unquote(\"alpha(opacity=#{$mfp-controls-opacity*100})\");\n }\n padding: 0 0 18px 10px;\n color: $mfp-controls-color;\n\n font-style: normal;\n font-size: 28px;\n font-family: $serif;\n\n &:hover,\n &:focus {\n opacity: 1;\n @if $mfp-IE7support {\n filter: unquote(\"alpha(opacity=#{1*100})\");\n }\n }\n\n &:active {\n top: 1px;\n }\n}\n.mfp-close-btn-in {\n .mfp-close {\n color: $mfp-inner-close-icon-color;\n }\n}\n.mfp-image-holder,\n.mfp-iframe-holder {\n .mfp-close {\n color: $mfp-controls-color;\n right: -6px;\n text-align: right;\n padding-right: 6px;\n width: 100%;\n }\n}\n\n// \"1 of X\" counter\n.mfp-counter {\n position: absolute;\n top: 0;\n right: 0;\n color: $mfp-controls-text-color;\n font-size: 12px;\n line-height: 18px;\n}\n\n// Navigation arrows\n@if $mfp-include-arrows {\n .mfp-arrow {\n position: absolute;\n opacity: $mfp-controls-opacity;\n @if $mfp-IE7support {\n filter: unquote(\"alpha(opacity=#{$mfp-controls-opacity*100})\");\n }\n margin: 0;\n top: 50%;\n margin-top: -55px;\n padding: 0;\n width: 90px;\n height: 110px;\n -webkit-tap-highlight-color: rgba(0,0,0,0);\n &:active {\n margin-top: -54px;\n }\n &:hover,\n &:focus {\n opacity: 1;\n @if $mfp-IE7support {\n filter: unquote(\"alpha(opacity=#{1*100})\");\n }\n }\n &:before,\n &:after,\n .mfp-b,\n .mfp-a {\n content: '';\n display: block;\n width: 0;\n height: 0;\n position: absolute;\n left: 0;\n top: 0;\n margin-top: 35px;\n margin-left: 35px;\n border: medium inset transparent;\n }\n\n &:after,\n .mfp-a {\n\n border-top-width: 13px;\n border-bottom-width: 13px;\n top:8px;\n }\n\n &:before,\n .mfp-b {\n border-top-width: 21px;\n border-bottom-width: 21px;\n opacity: 0.7;\n }\n\n }\n\n .mfp-arrow-left {\n left: 0;\n\n &:after,\n .mfp-a {\n border-right: 17px solid $mfp-controls-color;\n margin-left: 31px;\n }\n &:before,\n .mfp-b {\n margin-left: 25px;\n border-right: 27px solid $mfp-controls-border-color;\n }\n }\n\n .mfp-arrow-right {\n right: 0;\n &:after,\n .mfp-a {\n border-left: 17px solid $mfp-controls-color;\n margin-left: 39px\n }\n &:before,\n .mfp-b {\n border-left: 27px solid $mfp-controls-border-color;\n }\n }\n}\n\n\n\n// Iframe content type\n@if $mfp-include-iframe-type {\n .mfp-iframe-holder {\n padding-top: $mfp-iframe-padding-top;\n padding-bottom: $mfp-iframe-padding-top;\n .mfp-content {\n line-height: 0;\n width: 100%;\n max-width: $mfp-iframe-max-width;\n }\n .mfp-close {\n top: -40px;\n }\n }\n .mfp-iframe-scaler {\n width: 100%;\n height: 0;\n overflow: hidden;\n padding-top: $mfp-iframe-ratio * 100%;\n iframe {\n position: absolute;\n display: block;\n top: 0;\n left: 0;\n width: 100%;\n height: 100%;\n box-shadow: $mfp-shadow;\n background: $mfp-iframe-background;\n }\n }\n}\n\n\n\n// Image content type\n@if $mfp-include-image-type {\n\n /* Main image in popup */\n img {\n &.mfp-img {\n width: auto;\n max-width: 100%;\n height: auto;\n display: block;\n line-height: 0;\n -webkit-box-sizing: border-box;\n -moz-box-sizing: border-box;\n box-sizing: border-box;\n padding: $mfp-image-padding-top 0 $mfp-image-padding-bottom;\n margin: 0 auto;\n }\n }\n\n /* The shadow behind the image */\n .mfp-figure {\n line-height: 0;\n &:after {\n content: '';\n position: absolute;\n left: 0;\n top: $mfp-image-padding-top;\n bottom: $mfp-image-padding-bottom;\n display: block;\n right: 0;\n width: auto;\n height: auto;\n z-index: -1;\n box-shadow: $mfp-shadow;\n background: $mfp-image-background;\n }\n small {\n color: $mfp-caption-subtitle-color;\n display: block;\n font-size: 12px;\n line-height: 14px;\n }\n figure {\n margin: 0;\n }\n figcaption {\n margin-top: 0;\n margin-bottom: 0; // reset for bottom spacing\n }\n }\n .mfp-bottom-bar {\n margin-top: -$mfp-image-padding-bottom + 4;\n position: absolute;\n top: 100%;\n left: 0;\n width: 100%;\n cursor: auto;\n }\n .mfp-title {\n text-align: left;\n line-height: 18px;\n color: $mfp-caption-title-color;\n word-wrap: break-word;\n padding-right: 36px; // leave some space for counter at right side\n }\n\n .mfp-image-holder {\n .mfp-content {\n max-width: 100%;\n }\n }\n\n .mfp-gallery {\n .mfp-image-holder {\n .mfp-figure {\n cursor: pointer;\n }\n }\n }\n\n\n @if $mfp-include-mobile-layout-for-image {\n @media screen and (max-width: 800px) and (orientation:landscape), screen and (max-height: 300px) {\n /**\n * Remove all paddings around the image on small screen\n */\n .mfp-img-mobile {\n .mfp-image-holder {\n padding-left: 0;\n padding-right: 0;\n }\n img {\n &.mfp-img {\n padding: 0;\n }\n }\n .mfp-figure {\n // The shadow behind the image\n &:after {\n top: 0;\n bottom: 0;\n }\n small {\n display: inline;\n margin-left: 5px;\n }\n }\n .mfp-bottom-bar {\n background: rgba(0,0,0,0.6);\n bottom: 0;\n margin: 0;\n top: auto;\n padding: 3px 5px;\n position: fixed;\n -webkit-box-sizing: border-box;\n -moz-box-sizing: border-box;\n box-sizing: border-box;\n &:empty {\n padding: 0;\n }\n }\n .mfp-counter {\n right: 5px;\n top: 3px;\n }\n .mfp-close {\n top: 0;\n right: 0;\n width: 35px;\n height: 35px;\n line-height: 35px;\n background: rgba(0, 0, 0, 0.6);\n position: fixed;\n text-align: center;\n padding: 0;\n }\n }\n }\n }\n}\n\n\n\n// Scale navigation arrows and reduce padding from sides\n@media all and (max-width: 900px) {\n .mfp-arrow {\n -webkit-transform: scale(0.75);\n transform: scale(0.75);\n }\n .mfp-arrow-left {\n -webkit-transform-origin: 0;\n transform-origin: 0;\n }\n .mfp-arrow-right {\n -webkit-transform-origin: 100%;\n transform-origin: 100%;\n }\n .mfp-container {\n padding-left: $mfp-popup-padding-left-mobile;\n padding-right: $mfp-popup-padding-left-mobile;\n }\n}\n\n\n\n// IE7 support\n// Styles that make popup look nicier in old IE\n@if $mfp-IE7support {\n .mfp-ie7 {\n .mfp-img {\n padding: 0;\n }\n .mfp-bottom-bar {\n width: 600px;\n left: 50%;\n margin-left: -300px;\n margin-top: 5px;\n padding-bottom: 5px;\n }\n .mfp-container {\n padding: 0;\n }\n .mfp-content {\n padding-top: 44px;\n }\n .mfp-close {\n top: 0;\n right: 0;\n padding-top: 0;\n }\n }\n}\n", + "////////////////////////\n// Settings //\n////////////////////////\n\n// overlay\n$mfp-overlay-color: #000; // Color of overlay screen\n$mfp-overlay-opacity: 0.8; // Opacity of overlay screen\n$mfp-shadow: 0 0 8px rgba(0, 0, 0, 0.6); // Shadow on image or iframe\n\n// spacing\n$mfp-popup-padding-left: 8px; // Padding from left and from right side\n$mfp-popup-padding-left-mobile: 6px; // Same as above, but is applied when width of window is less than 800px\n\n$mfp-z-index-base: 1040; // Base z-index of popup\n\n// controls\n$mfp-include-arrows: true; // Include styles for nav arrows\n$mfp-controls-opacity: 1; // Opacity of controls\n$mfp-controls-color: #fff; // Color of controls\n$mfp-controls-border-color: #fff; // Border color of controls\n$mfp-inner-close-icon-color: #fff; // Color of close button when inside\n$mfp-controls-text-color: #ccc; // Color of preloader and \"1 of X\" indicator\n$mfp-controls-text-color-hover: #fff; // Hover color of preloader and \"1 of X\" indicator\n$mfp-IE7support: true; // Very basic IE7 support\n\n// Iframe-type options\n$mfp-include-iframe-type: true; // Enable Iframe-type popups\n$mfp-iframe-padding-top: 40px; // Iframe padding top\n$mfp-iframe-background: #000; // Background color of iframes\n$mfp-iframe-max-width: 900px; // Maximum width of iframes\n$mfp-iframe-ratio: 9/16; // Ratio of iframe (9/16 = widescreen, 3/4 = standard, etc.)\n\n// Image-type options\n$mfp-include-image-type: true; // Enable Image-type popups\n$mfp-image-background: #444 !default;\n$mfp-image-padding-top: 40px; // Image padding top\n$mfp-image-padding-bottom: 40px; // Image padding bottom\n$mfp-include-mobile-layout-for-image: true; // Removes paddings from top and bottom\n\n// Image caption options\n$mfp-caption-title-color: #f3f3f3; // Caption title color\n$mfp-caption-subtitle-color: #bdbdbd; // Caption subtitle color\n.mfp-counter { font-family: $serif; } // Caption font family\n\n// A11y\n$mfp-use-visuallyhidden: false;", + "// Susy (Un-Prefixed)\n// ==================\n\n@import 'susy-prefix';\n@import 'susy/unprefix';\n", + "// Susy (Prefixed)\n// ===============\n\n$susy-version: 3;\n\n@import 'susy/utilities';\n@import 'susy/su-validate';\n@import 'susy/su-math';\n@import 'susy/settings';\n@import 'susy/normalize';\n@import 'susy/parse';\n@import 'susy/syntax-helpers';\n@import 'susy/api';\n", + "// Sass Utilities\n// ==============\n// - Susy Error Output Override [variable]\n// - Susy Error [function]\n\n\n\n// Susy Error Output Override\n// --------------------------\n/// Turn off error output for testing\n/// @group x-utility\n/// @access private\n$_susy-error-output-override: false !default;\n\n\n\n// Susy Error\n// ----------\n/// Optionally return error messages without failing,\n/// as a way to test error cases\n///\n/// @group x-utility\n/// @access private\n///\n/// @param {string} $message -\n/// A useful error message, explaining the problem\n/// @param {string} $source -\n/// The original source of the error for debugging\n/// @param {bool} $override [$_susy-error-output-override] -\n/// Optionally return the error rather than failing\n/// @return {string} -\n/// Combined error with source and message\n/// @throws When `$override == true`\n@function _susy-error(\n $message,\n $source,\n $override: $_susy-error-output-override\n) {\n @if $override {\n @return 'ERROR [#{$source}] #{$message}';\n }\n\n @error '[#{$source}] #{$message}';\n}\n\n\n// Su Is Comparable\n// ----------------\n/// Check that the units in a grid are comparable\n///\n/// @group x-validation\n/// @access private\n///\n/// @param {numbers} $lengths… -\n/// Arglist of all the number values to compare\n/// (columns, gutters, span, etc)\n///\n/// @return {'fluid' | 'static' | false} -\n/// The type of span (fluid or static) when units match,\n/// or `false` for mismatched units\n@function _su-is-comparable(\n $lengths...\n) {\n $first: nth($lengths, 1);\n\n @if (length($lengths) == 1) {\n @return if(unitless($first), 'fluid', 'static');\n }\n\n @for $i from 2 through length($lengths) {\n $comp: nth($lengths, $i);\n\n $fail: not comparable($first, $comp);\n $fail: $fail or (unitless($first) and not unitless($comp));\n $fail: $fail or (unitless($comp) and not unitless($first));\n\n @if $fail {\n @return false;\n }\n }\n\n @return if(unitless($first), 'fluid', 'static');\n}\n\n\n// Su Map Add Units\n// ----------------\n/// The calc features use a map of units and values\n/// to compile the proper algorythm.\n/// This function adds a new value to any comparable existing unit/value,\n/// or adds a new unit/value pair to the map\n///\n/// @group x-utility\n/// @access private\n///\n/// @param {map} $map -\n/// A map of unit/value pairs, e.g. ('px': 120px)\n/// @param {length} $value -\n/// A new length to be added to the map\n/// @return {map} -\n/// The updated map, with new value added\n///\n/// @example scss -\n/// $map: (0px: 120px);\n/// $map: _su-map-add-units($map, 1in); // add a comparable unit\n/// $map: _su-map-add-units($map, 3vw); // add a new unit\n///\n/// @each $units, $value in $map {\n/// /* #{$units}: #{$value} */\n/// }\n@function _su-map-add-units(\n $map,\n $value\n) {\n $unit: $value * 0;\n $has: map-get($map, $unit) or 0;\n\n @if ($has == 0) {\n @each $try, $could in $map {\n $match: comparable($try, $value);\n $unit: if($match, $try, $unit);\n $has: if($match, $could, $has);\n }\n }\n\n @return map-merge($map, ($unit: $has + $value));\n}\n\n\n// Susy Flatten\n// ------------\n/// Flatten a multidimensional list\n///\n/// @group x-utility\n/// @access private\n///\n/// @param {list} $list -\n/// The list to be flattened\n/// @return {list} -\n/// The flattened list\n///\n/// @example scss -\n/// $list: 120px (30em 30em) 120px;\n/// /* #{_susy-flatten($list)} */\n@function _susy-flatten(\n $list\n) {\n $flat: ();\n\n // Don't iterate over maps\n @if (type-of($list) == 'map') {\n @return $list;\n }\n\n // Iterate over lists (or single items)\n @each $item in $list {\n @if (type-of($item) == 'list') {\n $item: _susy-flatten($item);\n $flat: join($flat, $item);\n } @else {\n $flat: append($flat, $item);\n }\n }\n\n // Return flattened list\n @return $flat;\n}\n", + "/// Validation\n/// ==========\n/// Each argument to Su has a single canonical syntax.\n/// These validation functions check to ensure\n/// that each argument is valid,\n/// in order to provide useful errors\n/// before attempting to calculate the results/\n///\n/// @group x-validation\n///\n/// @see su-valid-columns\n/// @see su-valid-gutters\n/// @see su-valid-spread\n/// @see su-valid-location\n\n\n\n// Valid Span\n// ----------\n/// Check that the `span` argument\n/// is a number, length, or column-list\n///\n/// @group x-validation\n///\n/// @param {number | list} $span -\n/// Number of columns, or length of span\n///\n/// @return {number | list} -\n/// Validated `$span` number, length, or columns list\n///\n/// @throw\n/// when span value is not a number, or valid column list\n@function su-valid-span(\n $span\n) {\n $type: type-of($span);\n @if ($type == 'number') {\n @return $span;\n } @else if ($type == 'list') and su-valid-columns($span, 'silent-failure') {\n @return $span;\n }\n\n $actual: '[#{type-of($span)}] `#{inspect($span)}`';\n @return _susy-error(\n '#{$actual} is not a valid number, length, or column-list for $span.',\n 'su-valid-span');\n}\n\n\n\n// Valid Columns\n// -------------\n/// Check that the `columns` argument is a valid\n/// list of column-lengths\n///\n/// @group x-validation\n///\n/// @param {list} $columns -\n/// List of column-lengths\n/// @param {bool} $silent-failure [true] -\n/// Set false to return null on failure\n///\n/// @return {list} -\n/// Validated `$columns` list\n///\n/// @throw\n/// when column value is not a valid list of numbers\n@function su-valid-columns(\n $columns,\n $silent-failure: false\n) {\n @if (type-of($columns) == 'list') {\n $fail: false;\n\n @each $col in $columns {\n @if (type-of($col) != 'number') {\n $fail: true;\n }\n }\n\n @if not $fail {\n @return $columns;\n }\n }\n\n // Silent Failure\n @if $silent-failure {\n @return null;\n }\n\n // Error Message\n $actual: '[#{type-of($columns)}] `#{inspect($columns)}`';\n\n @return _susy-error(\n '#{$actual} is not a valid list of numbers for $columns.',\n 'su-valid-columns');\n}\n\n\n\n// Valid Gutters\n// -------------\n/// Check that the `gutters` argument is a valid number\n///\n/// @group x-validation\n///\n/// @param {number} $gutters -\n/// Width of a gutter\n///\n/// @return {number} -\n/// Validated `$gutters` number\n///\n/// @throw\n/// when gutter value is not a number\n@function su-valid-gutters(\n $gutters\n) {\n $type: type-of($gutters);\n\n @if ($type == 'number') {\n @return $gutters;\n }\n\n $actual: '[#{$type}] `#{inspect($gutters)}`';\n @return _susy-error(\n '#{$actual} is not a number or length for $gutters.',\n 'su-valid-gutters');\n}\n\n\n\n// Valid Spread\n// ------------\n/// Check that the `spread` argument is a valid\n/// intiger between `-1` and `1`\n///\n/// @group x-validation\n///\n/// @param {0 | 1 | -1} $spread -\n/// Number of gutters to include in a span,\n/// relative to the number columns\n///\n/// @return {0 | 1 | -1} -\n/// Validated `$spread` number\n///\n/// @throw\n/// when spread value is not a valid spread\n@function su-valid-spread(\n $spread\n) {\n @if index(0 1 -1, $spread) {\n @return $spread;\n }\n\n $actual: '[#{type-of($spread)}] `#{inspect($spread)}`';\n @return _susy-error(\n '#{$actual} is not a normalized [0 | 1 | -1] value for `$spread`.',\n 'su-valid-spread');\n}\n\n\n\n// Valid Location\n// --------------\n/// Check that the `location` argument is a valid number,\n/// within the scope of available columns\n///\n/// @group x-validation\n///\n/// @param {number} $span -\n/// Number of grid-columns to be spanned\n/// @param {integer | string} $location -\n/// Starting (1-indexed) column-position of that span\n/// @param {list} $columns -\n/// List of available columns in the grid\n///\n/// @return {integer} -\n/// Validated `$location` intiger\n///\n/// @throw\n/// when location value is not a valid index,\n/// given the context and span.\n@function su-valid-location(\n $span,\n $location,\n $columns\n) {\n $count: length($columns);\n\n @if $location {\n @if (type-of($location) != 'number') or (not unitless($location)) {\n $actual: '[#{type-of($location)}] `#{$location}`';\n @return _susy-error(\n '#{$actual} is not a unitless number for $location.',\n 'su-valid-location');\n } @else if (round($location) != $location) {\n @return _susy-error(\n 'Location (`#{$location}`) must be a 1-indexed intiger position.',\n 'su-valid-location');\n } @else if ($location > $count) or ($location < 1) {\n @return _susy-error(\n 'Position `#{$location}` does not exist in grid `#{$columns}`.',\n 'su-valid-location');\n } @else if ($location + $span - 1 > $count) {\n $details: 'grid `#{$columns}` for span `#{$span}` at `#{$location}`';\n @return _susy-error(\n 'There are not enough columns in #{$details}.',\n 'su-valid-location');\n }\n }\n\n @return $location;\n}\n", + "/// Grid Math Engine\n/// ================\n/// The `su` functions give you direct access to the math layer,\n/// without any syntax-sugar like shorthand parsing, and normalization.\n/// If you prefer named arguments, and stripped-down syntax,\n/// you can use these functions directly in your code –\n/// replacing `span`, `gutter`, and `slice`.\n///\n/// These functions are also useful\n/// for building mixins or other extensions to Susy.\n/// Apply the Susy syntax to new mixins and functions,\n/// using our \"Plugin Helpers\",\n/// or write your own syntax and pass the normalized results along\n/// to `su` for compilation.\n///\n/// @group su-math\n///\n/// @see su-span\n/// @see su-gutter\n/// @see su-slice\n/// @ignore _su-sum\n/// @ignore _su-calc-span\n/// @ignore _su-calc-sum\n/// @ignore _su-needs-calc-output\n\n\n\n// Su Span\n// -------\n/// Calculates and returns a CSS-ready span width,\n/// based on normalized span and context data –\n/// a low-level version of `susy-span`,\n/// with all of the logic and none of the syntax sugar.\n///\n/// - Grids defined with unitless numbers will return `%` values.\n/// - Grids defined with comparable units\n/// will return a value in the units provided.\n/// - Grids defined with a mix of units,\n/// or a combination of untiless numbers and unit-lengths,\n/// will return a `calc()` string.\n///\n/// @group su-math\n/// @see susy-span\n///\n/// @param {number | list} $span -\n/// Number or list of grid columns to span\n/// @param {list} $columns -\n/// List of columns available\n/// @param {number} $gutters -\n/// Width of a gutter in column-comparable units\n/// @param {0 | 1 | -1} $spread -\n/// Number of gutters spanned,\n/// relative to `span` count\n/// @param {0 | 1 | -1} $container-spread [$spread] -\n/// Number of gutters spanned,\n/// relative to `columns` count\n/// @param {integer} $location [1] -\n/// Optional position of sub-span among full set of columns\n///\n/// @return {length} -\n/// Relative or static length of a span on the grid\n@function su-span(\n $span,\n $columns,\n $gutters,\n $spread,\n $container-spread: $spread,\n $location: 1\n) {\n $span: su-valid-span($span);\n $columns: su-valid-columns($columns);\n $gutters: su-valid-gutters($gutters);\n $spread: su-valid-spread($spread);\n\n @if (type-of($span) == 'number') {\n @if (not unitless($span)) {\n @return $span;\n }\n\n $location: su-valid-location($span, $location, $columns);\n $span: su-slice($span, $columns, $location, $validate: false);\n }\n\n @if _su-needs-calc-output($span, $columns, $gutters, $spread, not 'validate') {\n @return _su-calc-span($span, $columns, $gutters, $spread, $container-spread, not 'validate');\n }\n\n $span-width: _su-sum($span, $gutters, $spread, $validate: false);\n\n @if unitless($span-width) {\n $container-spread: su-valid-spread($container-spread);\n $container: _su-sum($columns, $gutters, $container-spread, $validate: false);\n @return percentage($span-width / $container);\n }\n\n @return $span-width;\n}\n\n\n\n// Su Gutter\n// ---------\n/// Calculates and returns a CSS-ready gutter width,\n/// based on normalized grid data –\n/// a low-level version of `susy-gutter`,\n/// with all of the logic and none of the syntax sugar.\n///\n/// - Grids defined with unitless numbers will return `%` values.\n/// - Grids defined with comparable units\n/// will return a value in the units provided.\n/// - Grids defined with a mix of units,\n/// or a combination of untiless numbers and unit-lengths,\n/// will return a `calc()` string.\n///\n/// @group su-math\n/// @see susy-gutter\n///\n/// @param {list} $columns -\n/// List of columns in the grid\n/// @param {number} $gutters -\n/// Width of a gutter in column-comparable units\n/// @param {0 | 1 | -1} $container-spread -\n/// Number of gutters spanned,\n/// relative to `columns` count\n///\n/// @return {length} -\n/// Relative or static length of one gutter in a grid\n@function su-gutter(\n $columns,\n $gutters,\n $container-spread\n) {\n @if (type-of($gutters) == 'number') {\n @if ($gutters == 0) or (not unitless($gutters)) {\n @return $gutters;\n }\n }\n\n @if _su-needs-calc-output($gutters, $columns, $gutters, -1, not 'validate') {\n @return _su-calc-span($gutters, $columns, $gutters, -1, $container-spread, not 'validate');\n }\n\n $container: _su-sum($columns, $gutters, $container-spread);\n @return percentage($gutters / $container);\n}\n\n\n\n// Su Slice\n// --------\n/// Returns a list of columns\n/// based on a given span/location slice of the grid –\n/// a low-level version of `susy-slice`,\n/// with all of the logic and none of the syntax sugar.\n///\n/// @group su-math\n/// @see susy-slice\n///\n/// @param {number} $span -\n/// Number of grid columns to span\n/// @param {list} $columns -\n/// List of columns in the grid\n/// @param {number} $location [1] -\n/// Starting index of a span in the list of columns\n/// @param {bool} $validate [true] -\n/// Check that arguments are valid before proceeding\n///\n/// @return {list} -\n/// Subset list of grid columns, based on span and location\n@function su-slice(\n $span,\n $columns,\n $location: 1,\n $validate: true\n) {\n @if $validate {\n $columns: su-valid-columns($columns);\n $location: su-valid-location($span, $location, $columns);\n }\n\n $floor: floor($span);\n $sub-columns: ();\n\n @for $i from $location to ($location + $floor) {\n $sub-columns: append($sub-columns, nth($columns, $i));\n }\n\n @if $floor != $span {\n $remainder: $span - $floor;\n $column: $location + $floor;\n $sub-columns: append($sub-columns, nth($columns, $column) * $remainder);\n }\n\n @return $sub-columns;\n}\n\n\n\n// Su Sum\n// ------\n/// Get the total sum of column-units in a layout.\n///\n/// @group su-math\n/// @access private\n///\n/// @param {list} $columns -\n/// List of columns in the grid\n/// @param {number} $gutters -\n/// Width of a gutter in column-comparable units\n/// @param {0 | 1 | -1} $spread -\n/// Number of gutters spanned,\n/// relative to `columns` count\n/// @param {bool} $validate [true] -\n/// Check that arguments are valid before proceeding\n///\n/// @return {number} -\n/// Total sum of column-units in a grid\n@function _su-sum(\n $columns,\n $gutters,\n $spread,\n $validate: true\n) {\n @if $validate {\n $columns: su-valid-span($columns);\n $gutters: su-valid-gutters($gutters);\n $spread: su-valid-spread($spread);\n }\n\n // Calculate column-sum\n $column-sum: 0;\n @each $column in $columns {\n $column-sum: $column-sum + $column;\n }\n\n $gutter-sum: (ceil(length($columns)) + $spread) * $gutters;\n $total: if(($gutter-sum > 0), $column-sum + $gutter-sum, $column-sum);\n\n @return $total;\n}\n\n\n\n// Su Calc\n// -------\n/// Return a usable span width as a `calc()` function,\n/// in order to create mixed-unit grids.\n///\n/// @group su-math\n/// @access private\n///\n/// @param {number | list} $span -\n/// Pre-sliced list of grid columns to span\n/// @param {list} $columns -\n/// List of columns available\n/// @param {number} $gutters -\n/// Width of a gutter in column-comparable units\n/// @param {0 | 1 | -1} $spread -\n/// Number of gutters spanned,\n/// relative to `span` count\n/// @param {0 | 1 | -1} $container-spread [$spread] -\n/// Number of gutters spanned,\n/// relative to `columns` count\n/// @param {bool} $validate [true] -\n/// Check that arguments are valid before proceeding\n///\n/// @return {length} -\n/// Relative or static length of a span on the grid\n@function _su-calc-span(\n $span,\n $columns,\n $gutters,\n $spread,\n $container-spread: $spread,\n $validate: true\n) {\n @if $validate {\n $span: su-valid-span($span);\n $columns: su-valid-columns($columns);\n $gutters: su-valid-gutters($gutters);\n $spread: su-valid-spread($spread);\n $container-spread: su-valid-spread($container-spread);\n }\n\n // Span and context\n $span: _su-calc-sum($span, $gutters, $spread, not 'validate');\n $context: _su-calc-sum($columns, $gutters, $container-spread, not 'validate');\n\n // Fixed and fluid\n $fixed-span: map-get($span, 'fixed');\n $fluid-span: map-get($span, 'fluid');\n $fixed-context: map-get($context, 'fixed');\n $fluid-context: map-get($context, 'fluid');\n\n $calc: '#{$fixed-span}';\n $fluid-calc: '(100% - #{$fixed-context})';\n\n // Fluid-values\n @if (not $fluid-span) {\n $fluid-calc: null;\n } @else if ($fluid-span != $fluid-context) {\n $fluid-span: '* #{$fluid-span}';\n $fluid-context: if($fluid-context, '/ #{$fluid-context}', '');\n $fluid-calc: '(#{$fluid-calc $fluid-context $fluid-span})';\n }\n\n @if $fluid-calc {\n $calc: if(($calc != ''), '#{$calc} + ', '');\n $calc: '#{$calc + $fluid-calc}';\n }\n\n @return calc(#{unquote($calc)});\n}\n\n\n\n// Su Calc-Sum\n// -----------\n/// Get the total sum of fixed and fluid column-units\n/// for creating a mixed-unit layout with `calc()` values.\n///\n/// @group su-math\n/// @access private\n///\n/// @param {list} $columns -\n/// List of columns available\n/// @param {number} $gutters -\n/// Width of a gutter in column-comparable units\n/// @param {0 | 1 | -1} $spread -\n/// Number of gutters spanned,\n/// relative to `span` count\n/// @param {bool} $validate [true] -\n/// Check that arguments are valid before proceeding\n///\n/// @return {map} -\n/// Map with `fixed` and `fluid` keys\n/// containing the proper math as strings\n@function _su-calc-sum(\n $columns,\n $gutters,\n $spread,\n $validate: true\n) {\n @if $validate {\n $columns: su-valid-span($columns);\n $gutters: su-valid-gutters($gutters);\n $spread: su-valid-spread($spread);\n }\n\n $fluid: 0;\n $fixed: ();\n $calc: null;\n\n // Gutters\n $gutters: $gutters * (length($columns) + $spread);\n\n // Columns\n @each $col in append($columns, $gutters) {\n @if unitless($col) {\n $fluid: $fluid + $col;\n } @else {\n $fixed: _su-map-add-units($fixed, $col);\n }\n }\n\n // Compile Fixed Units\n @each $unit, $total in $fixed {\n @if ($total != (0 * $total)) {\n $calc: if($calc, '#{$calc} + #{$total}', '#{$total}');\n }\n }\n\n // Calc null or string\n @if $calc {\n $calc: if(str-index($calc, '+'), '(#{$calc})', '#{$calc}');\n }\n\n // Fluid 0 => null\n $fluid: if(($fluid == 0), null, $fluid);\n\n\n // Return map\n $return: (\n 'fixed': $calc,\n 'fluid': $fluid,\n );\n\n @return $return;\n}\n\n\n\n// Needs Calc\n// ----------\n/// Check if `calc()` will be needed in defining a span,\n/// if the necessary units in a grid are not comparable.\n///\n/// @group su-math\n/// @access private\n///\n/// @param {list} $span -\n/// Slice of columns to span\n/// @param {list} $columns -\n/// List of available columns in the grid\n/// @param {number} $gutters -\n/// Width of a gutter\n/// @param {0 | 1 | -1} $spread -\n/// Number of gutters spanned,\n/// relative to `span` count\n/// @param {bool} $validate [true] -\n/// Check that arguments are valid before proceeding\n///\n/// @return {bool} -\n/// `True` when units do not match, and `calc()` will be required\n@function _su-needs-calc-output(\n $span,\n $columns,\n $gutters,\n $spread,\n $validate: true\n) {\n @if $validate {\n $span: su-valid-span($span);\n $columns: su-valid-columns($columns);\n $gutters: su-valid-gutters($gutters);\n }\n\n $has-gutter: if((length($span) > 1) or ($spread >= 0), true, false);\n $check: if($has-gutter, append($span, $gutters), $span);\n $safe-span: _su-is-comparable($check...);\n\n @if ($safe-span == 'static') {\n @return false;\n } @else if (not $safe-span) {\n @return true;\n }\n\n $safe-fluid: _su-is-comparable($gutters, $columns...);\n\n @return not $safe-fluid;\n}\n", + "/// Susy3 Configuration\n/// ===================\n/// Susy3 has 4 core settings, in a single settings map.\n/// You'll notice a few differences from Susy2:\n///\n/// **Columns** no longer accept a single number, like `12`,\n/// but use a syntax more similar to the new\n/// CSS [grid-template-columns][columns] –\n/// a list of relative sizes for each column on the grid.\n/// Unitless numbers in Susy act very similar to `fr` units in CSS,\n/// and the `susy-repeat()` function (similar to the css `repeat()`)\n/// helps quickly establish equal-width columns.\n///\n/// [columns]: https://developer.mozilla.org/en-US/docs/Web/CSS/grid-template-columns\n///\n/// - `susy-repeat(12)` will create 12 fluid, equal-width columns\n/// - `susy-repeat(6, 120px)` will create 6 equal `120px`-wide columns\n/// - `120px susy-repeat(4) 120px` will create 6 columns,\n/// the first and last are `120px`,\n/// while the middle 4 are equal fractions of the remainder.\n/// Susy will output `calc()` values in order to achieve this.\n///\n/// **Gutters** haven't changed –\n/// a single fraction or explicit width –\n/// but the `calc()` output feature\n/// means you can now use any combination of units and fractions\n/// to create static-gutters on a fluid grid, etc.\n///\n/// **Spread** existed in the Susy2 API as a span option,\n/// and was otherwise handled behind the scenes.\n/// Now we're giving you full control over all spread issues.\n/// You can find a more [detailed explanation of spread on the blog][spread].\n///\n/// [spread]: http://oddbird.net/2017/06/13/susy-spread/\n///\n/// You can access your global settings at any time\n/// with the `susy-settings()` function,\n/// or grab a single setting from the global scope\n/// with `susy-get('columns')`, `susy-get('gutters')` etc.\n///\n/// @group a-config\n/// @link http://oddbird.net/2017/06/13/susy-spread/\n/// Article: Understanding Spread in Susy3\n///\n/// @see $susy\n/// @see susy-settings\n/// @see susy-get\n\n\n\n// Susy\n// ----\n/// The grid is defined in a single map variable,\n/// with four initial properties:\n/// `columns`, `gutters`, `spread` and `container-spread`.\n/// Anything you put in the root `$susy` variable map\n/// will be treated as a global project default.\n/// You can create similar configuration maps\n/// under different variable names,\n/// to override the defaults as-needed.\n///\n/// @group a-config\n/// @type Map\n///\n/// @see $_susy-defaults\n/// @see {function} susy-repeat\n/// @link\n/// https://codepen.io/mirisuzanne/pen/EgmJJp?editors=1100\n/// Spread examples on CodePen\n///\n/// @prop {list} columns -\n/// Columns are described by a list of numbers,\n/// representing the relative width of each column.\n/// The syntax is a simplified version of CSS native\n/// `grid-template-columns`,\n/// expecting a list of grid-column widths.\n/// Unitless numbers create fractional fluid columns\n/// (similar to the CSS-native `fr` unit),\n/// while length values (united numbers)\n/// are used to define static columns.\n/// You can mix-and match units and fractions,\n/// to create a mixed grid.\n/// Susy will generate `calc()` values when necessary,\n/// to make all your units work together.\n///\n/// Use the `susy-repeat($count, $value)` function\n/// to more easily repetative columns,\n/// similar to the CSS-native `repeat()`.\n///\n/// - `susy-repeat(8)`:\n/// an 8-column, symmetrical, fluid grid.\n///
Identical to `(1 1 1 1 1 1 1 1)`.\n/// - `susy-repeat(6, 8em)`:\n/// a 6-column, symmetrical, em-based grid.\n///
Identical to `(8em 8em 8em 8em 8em 8em)`.\n/// - `(300px susy-repeat(4) 300px)`:\n/// a 6-column, asymmetrical, mixed fluid/static grid\n/// using `calc()` output.\n///
Identical to `(300px 1 1 1 1 300px)`.\n///\n/// **NOTE** that `12` is no longer a valid 12-column grid definition,\n/// and you must list all the columns individually\n/// (or by using the `susy-repeat()` function).\n///\n/// @prop {number} gutters -\n/// Gutters are defined as a single width,\n/// or fluid ratio, similar to the native-CSS\n/// `grid-column-gap` syntax.\n/// Similar to columns,\n/// gutters can use any valid CSS length unit,\n/// or unitless numbers to define a relative fraction.\n///\n/// - `0.5`:\n/// a fluid gutter, half the size of a single-fraction column.\n/// - `1em`:\n/// a static gutter, `1em` wide.\n///\n/// Mix static gutters with fluid columns, or vice versa,\n/// and Susy will generate the required `calc()` to make it work.\n///\n/// @prop {string} spread [narrow] -\n/// Spread of an element across adjacent gutters:\n/// either `narrow` (none), `wide` (one), or `wider` (two)\n///\n/// - Both spread settings default to `narrow`,\n/// the most common use-case.\n/// A `narrow` spread only has gutters *between* columns\n/// (one less gutter than columns).\n/// This is how all css-native grids work,\n/// and most margin-based grid systems.\n/// - A `wide` spread includes the same number of gutters as columns,\n/// spanning across a single side-gutter.\n/// This is how most padding-based grid systems often work,\n/// and is also useful for pushing and pulling elements into place.\n/// - The rare `wider` spread includes gutters\n/// on both sides of the column-span\n/// (one more gutters than columns).\n///\n/// @prop {string} container-spread [narrow] -\n/// Spread of a container around adjacent gutters:\n/// either `narrow` (none), `wide` (one), or `wider` (two).\n/// See `spread` property for details.\n///\n/// @since 3.0.0-beta.1 -\n/// `columns` setting no longer accepts numbers\n/// (e.g. `12`) for symmetrical fluid grids,\n/// or the initial `12 x 120px` syntax for\n/// symmetrical fixed-unit grids.\n/// Use `susy-repeat(12)` or `susy-repeat(12, 120px)` instead.\n///\n/// @example scss - default values\n/// // 4 symmetrical, fluid columns\n/// // gutters are 1/4 the size of a column\n/// // elements span 1 less gutter than columns\n/// // containers span 1 less gutter as well\n/// $susy: (\n/// 'columns': susy-repeat(4),\n/// 'gutters': 0.25,\n/// 'spread': 'narrow',\n/// 'container-spread': 'narrow',\n/// );\n///\n/// @example scss - inside-static gutters\n/// // 6 symmetrical, fluid columns…\n/// // gutters are static, triggering calc()…\n/// // elements span equal columns & gutters…\n/// // containers span equal columns & gutters…\n/// $susy: (\n/// 'columns': susy-repeat(6),\n/// 'gutters': 0.5em,\n/// 'spread': 'wide',\n/// 'container-spread': 'wide',\n/// );\n$susy: () !default;\n\n\n\n// Susy Repeat\n// -----------\n/// Similar to the `repeat(, )` function\n/// that is available in native CSS Grid templates,\n/// the `susy-repeat()` function helps generate repetative layouts\n/// by repeating any value a given number of times.\n/// Where Susy previously allowed `8` as a column definition\n/// for 8 equal columns, you should now use `susy-repeat(8)`.\n///\n/// @group a-config\n///\n/// @param {integer} $count -\n/// The number of repetitions, e.g. `12` for a 12-column grid.\n/// @param {*} $value [1] -\n/// The value to be repeated.\n/// Technically any value can be repeated here,\n/// but the function exists to repeat column-width descriptions:\n/// e.g. the default `1` for single-fraction fluid columns,\n/// `5em` for a static column,\n/// or even `5em 120px` if you are alternating column widths.\n///\n/// @return {list} -\n/// List of repeated values\n///\n/// @example scss\n/// // 12 column grid, with 5em columns\n/// $susy: (\n/// columns: susy-repeat(12, 5em),\n/// );\n///\n/// @example scss\n/// // asymmetrical 5-column grid\n/// $susy: (\n/// columns: 20px susy-repeat(3, 100px) 20px,\n/// );\n///\n/// /* result: #{susy-get('columns')} */\n@function susy-repeat(\n $count,\n $value: 1\n) {\n $return: ();\n\n @for $i from 1 through $count {\n $return: join($return, $value);\n }\n\n @return $return;\n}\n\n\n\n// Susy Defaults\n// -------------\n/// Configuration map of Susy factory defaults.\n/// Do not override this map directly –\n/// use `$susy` for user and project setting overrides.\n///\n/// @access private\n/// @type Map\n///\n/// @see $susy\n///\n/// @prop {number | list} columns [susy-repeat(4)]\n/// @prop {number} gutters [0.25]\n/// @prop {string} spread ['narrow']\n/// @prop {string} container-spread ['narrow']\n$_susy-defaults: (\n 'columns': susy-repeat(4),\n 'gutters': 0.25,\n 'spread': 'narrow',\n 'container-spread': 'narrow',\n);\n\n\n\n// Susy Settings\n// -------------\n/// Return a combined map of Susy settings,\n/// based on the factory defaults (`$_susy-defaults`),\n/// user-defined project configuration (`$susy`),\n/// and any local overrides required –\n/// such as a configuration map passed into a function.\n///\n/// @group a-config\n///\n/// @param {maps} $overrides… -\n/// Optional map override of global configuration settings.\n/// See `$susy` above for properties.\n///\n/// @return {map} -\n/// Combined map of Susy configuration settings,\n/// in order of specificity:\n/// any `$overrides...`,\n/// then `$susy` project settings,\n/// and finally the `$_susy-defaults`\n///\n/// @example scss - global settings\n/// @each $key, $value in susy-settings() {\n/// /* #{$key}: #{$value} */\n/// }\n///\n/// @example scss - local settings\n/// $local: ('columns': 1 2 3 5 8);\n///\n/// @each $key, $value in susy-settings($local) {\n/// /* #{$key}: #{$value} */\n/// }\n@function susy-settings(\n $overrides...\n) {\n $settings: map-merge($_susy-defaults, $susy);\n\n @each $config in $overrides {\n $settings: map-merge($settings, $config);\n }\n\n @return $settings;\n}\n\n\n\n// Susy Get\n// --------\n/// Return the current global value of any Susy setting\n///\n/// @group a-config\n///\n/// @param {string} $key -\n/// Setting to retrieve from the configuration.\n///\n/// @return {*} -\n/// Value mapped to `$key` in the configuration maps,\n/// in order of specificity:\n/// `$susy`, then `$_susy-defaults`\n///\n/// @example scss -\n/// /* columns: #{susy-get('columns')} */\n/// /* gutters: #{susy-get('gutters')} */\n@function susy-get(\n $key\n) {\n $settings: susy-settings();\n\n @if not map-has-key($settings, $key) {\n @return _susy-error(\n 'There is no Susy setting called `#{$key}`',\n 'susy-get');\n }\n\n @return map-get($settings, $key);\n}\n", + "/// Syntax Normalization\n/// ====================\n/// Susy is divided into two layers:\n/// \"Su\" provides the core math functions with a stripped-down syntax,\n/// while \"Susy\" adds global settings, shorthand syntax,\n/// and other helpers.\n/// Each setting (e.g. span, location, columns, spread, etc.)\n/// has a single canonical syntax in Su.\n///\n/// This normalization module helps translate between those layers,\n/// transforming parsed Susy input into\n/// values that Su will understand.\n///\n/// @group x-normal\n///\n/// @see susy-normalize\n/// @see susy-normalize-span\n/// @see susy-normalize-columns\n/// @see susy-normalize-spread\n/// @see susy-normalize-location\n\n\n\n// Susy Normalize\n// --------------\n/// Normalize the values in a configuration map.\n/// In addition to the global `$susy` properties,\n/// this map can include local span-related imformation,\n/// like `span` and `location`.\n///\n/// Normalization does not check that values are valid,\n/// which will happen in the Su math layer.\n/// These functions merely look for known Susy syntax –\n/// returning a map with those shorthand values\n/// converted into low-level data for Su.\n/// For example `span: all` and `location: first`\n/// will be converted into specific numbers.\n///\n/// @group x-normal\n/// @see $susy\n/// @see susy-parse\n///\n/// @param {map} $config -\n/// Map of Susy configuration settings to normalize.\n/// See `$susy` and `susy-parse()` documentation for details.\n/// @param {map | null} $context [null] -\n/// Map of Susy configuration settings to use as global reference,\n/// or `null` to use global settings.\n///\n/// @return {map} -\n/// Map of Susy configuration settings,\n/// with all values normalized for Su math functions.\n@function susy-normalize(\n $config,\n $context: null\n) {\n // Spread\n @each $setting in ('spread', 'container-spread') {\n $value: map-get($config, $setting);\n\n @if $value {\n $value: susy-normalize-spread($value);\n $config: map-merge($config, ($setting: $value));\n }\n }\n\n // Columns\n $columns: map-get($config, 'columns');\n\n @if $columns {\n $columns: susy-normalize-columns($columns, $context);\n $config: map-merge($config, ('columns': $columns));\n }\n\n @if not $columns {\n $map: type-of($context) == 'map';\n $columns: if($map, map-get($context, 'columns'), null);\n $columns: $columns or susy-get('columns');\n }\n\n // Span\n $span: map-get($config, 'span');\n\n @if $span {\n $span: susy-normalize-span($span, $columns);\n $config: map-merge($config, ('span': $span));\n }\n\n // Location\n $location: map-get($config, 'location');\n\n @if $location {\n $location: susy-normalize-location($span, $location, $columns);\n $config: map-merge($config, ('location': $location));\n }\n\n @return $config;\n}\n\n\n\n// Normalize Span\n// --------------\n/// Normalize `span` shorthand for Su.\n/// Su span syntax allows an explicit length (e.g. `3em`),\n/// unitless column-span number (e.g. `3` columns),\n/// or an explicit list of columns (e.g. `(3 5 8)`).\n///\n/// Susy span syntax also allows the `all` keyword,\n/// which will be converted to a slice of the context\n/// in normalization.\n///\n/// @group x-normal\n///\n/// @param {number | list | 'all'} $span -\n/// Span value to normalize.\n/// @param {list} $columns -\n/// Normalized list of columns in the grid\n///\n/// @return {number | list} -\n/// Number or list value for `$span`\n@function susy-normalize-span(\n $span,\n $columns: susy-get('columns')\n) {\n @if ($span == 'all') {\n @return length($columns);\n }\n\n @return $span;\n}\n\n\n\n// Normalize Columns\n// -----------------\n/// Normalize `column` shorthand for Su.\n/// Su column syntax only allows column lists (e.g. `120px 1 1 1 120px`).\n///\n/// Susy span syntax also allows a unitless `slice` number (e.g `of 5`),\n/// which will be converted to a slice of the context\n/// in normalization.\n///\n/// @group x-normal\n///\n/// @param {list | integer} $columns -\n/// List of available columns,\n/// or unitless integer representing a slice of\n/// the available context.\n/// @param {map | null} $context [null] -\n/// Map of Susy configuration settings to use as global reference,\n/// or `null` to access global settings.\n///\n/// @return {list} -\n/// Columns list value, normalized for Su input.\n///\n/// @throws\n/// when attempting to access a slice of asymmetrical context\n@function susy-normalize-columns(\n $columns,\n $context: null\n) {\n $context: $context or susy-settings();\n\n @if type-of($columns) == 'list' {\n @return _susy-flatten($columns);\n }\n\n @if (type-of($columns) == 'number') and (unitless($columns)) {\n $span: $columns;\n $context: map-get($context, 'columns');\n $symmetrical: susy-repeat(length($context), nth($context, 1));\n\n @if ($context == $symmetrical) {\n @return susy-repeat($span, nth($context, 1));\n } @else {\n $actual: 'of `#{$span}`';\n $columns: 'grid-columns `#{$context}`';\n @return _susy-error(\n 'context-slice #{$actual} can not be determined based on #{$columns}.',\n 'susy-normalize-columns');\n }\n }\n\n @return $columns;\n}\n\n\n\n// Normalize Spread\n// ----------------\n/// Normalize `spread` shorthand for Su.\n/// Su spread syntax only allows the numbers `-1`, `0`, or `1` –\n/// representing the number of gutters covered\n/// in relation to columns spanned.\n///\n/// Susy spread syntax also allows keywords for each value –\n/// `narrow` for `-1`, `wide` for `0`, or `wider` for `1` –\n/// which will be converted to their respective integers\n/// in normalization.\n///\n/// @group x-normal\n///\n/// @param {0 | 1 | -1 | 'narrow' | 'wide' | 'wider'} $spread -\n/// Spread across adjacent gutters, relative to a column-count —\n/// either `narrow` (-1), `wide` (0), or `wider` (1)\n///\n/// @return {number} -\n/// Numeric value for `$spread`\n@function susy-normalize-spread(\n $spread\n) {\n $normal-spread: (\n 'narrow': -1,\n 'wide': 0,\n 'wider': 1,\n );\n\n @return map-get($normal-spread, $spread) or $spread;\n}\n\n\n\n// Normalize Location\n// ------------------\n/// Normalize `location` shorthand for Su.\n/// Su location syntax requires the (1-indexed) number for a column.\n///\n/// Susy also allows the `first` and `last` keywords,\n/// where `first` is always `1`,\n/// and `last` is calculated based on span and column values.\n/// Both keywords are normalized into an integer index\n/// in normalization.\n///\n/// @group x-normal\n///\n/// @param {number} $span -\n/// Number of grid-columns to be spanned\n/// @param {integer | 'first' | 'last'} $location -\n/// Starting (1-indexed) column position of a span,\n/// or a named location keyword.\n/// @param {list} $columns -\n/// Already-normalized list of columns in the grid.\n///\n/// @return {integer} -\n/// Numeric value for `$location`\n@function susy-normalize-location(\n $span,\n $location,\n $columns\n) {\n $count: length($columns);\n $normal-locations: (\n 'first': 1,\n 'alpha': 1,\n 'last': $count - $span + 1,\n 'omega': $count - $span + 1,\n );\n\n @return map-get($normal-locations, $location) or $location;\n}\n", + "/// Shorthand Syntax Parser\n/// =======================\n/// The syntax parser converts [shorthand syntax][short]\n/// into a map of settings that can be compared/merged with\n/// other config maps and global setting.\n///\n/// [short]: b-api.html\n///\n/// @group x-parser\n\n\n\n// Parse\n// -----\n/// The `parse` function provides all the syntax-sugar in Susy,\n/// converting user shorthand\n/// into a usable map of keys and values\n/// that can be normalized and passed to Su.\n///\n/// @group x-parser\n/// @see $susy\n///\n/// @param {list} $shorthand -\n/// Shorthand expression to define the width of the span,\n/// optionally containing:\n/// - a count, length, or column-list span;\n/// - `at $n`, `first`, or `last` location on asymmetrical grids;\n/// - `narrow`, `wide`, or `wider` for optionally spreading\n/// across adjacent gutters;\n/// - `of $n ` for available grid columns\n/// and spread of the container\n/// (span counts like `of 6` are only valid\n/// in the context of symmetrical grids);\n/// - and `set-gutters $n` to override global gutter settings\n/// @param {bool} $context-only [false] -\n/// Allow the parser to ignore span and span-spread values,\n/// only parsing context and container-spread.\n/// This makes it possible to accept spanless values,\n/// like the `gutters()` syntax.\n/// When parsing context-only,\n/// the `of` indicator is optional.\n///\n/// @return {map} -\n/// Map of span and grid settings\n/// parsed from shorthand input –\n/// including all the properties available globally –\n/// `columns`, `gutters`, `spread`, `container-spread` –\n/// along with the span-specific properties\n/// `span`, and `location`.\n///\n/// @throw\n/// when a shorthand value is not recognized\n@function susy-parse(\n $shorthand,\n $context-only: false\n) {\n $parse-error: 'Unknown shorthand property:';\n $options: (\n 'first': 'location',\n 'last': 'location',\n 'alpha': 'location',\n 'omega': 'location',\n 'narrow': 'spread',\n 'wide': 'spread',\n 'wider': 'spread',\n );\n\n $return: ();\n $span: null;\n $columns: null;\n\n $of: null;\n $next: false;\n\n // Allow context-only shorthand, without span\n @if ($context-only) and (not index($shorthand, 'of')) {\n @if su-valid-columns($shorthand, 'fail-silent') {\n $shorthand: 'of' $shorthand;\n } @else {\n $shorthand: join('of', $shorthand);\n }\n }\n\n // loop through the shorthand list\n @for $i from 1 through length($shorthand) {\n $item: nth($shorthand, $i);\n $type: type-of($item);\n $error: false;\n $details: '[#{$type}] `#{$item}`';\n\n // if we know what's supposed to be coming next…\n @if $next {\n\n // Add to the return map\n $return: map-merge($return, ($next: $item));\n\n // Reset next to `false`\n $next: false;\n\n } @else { // If we don't know what's supposed to be coming…\n\n // Keywords…\n @if ($type == 'string') {\n // Check the map for keywords…\n @if map-has-key($options, $item) {\n $setting: map-get($options, $item);\n\n // Spread could be on the span or the container…\n @if ($setting == 'spread') and ($of) {\n $return: map-merge($return, ('container-spread': $item));\n } @else {\n $return: map-merge($return, ($setting: $item));\n }\n\n } @else if ($item == 'all') {\n // `All` is a span shortcut\n $span: 'all';\n } @else if ($item == 'at') {\n // Some keywords setup what's next…\n $next: 'location';\n } @else if ($item == 'set-gutters') {\n $next: 'gutters';\n } @else if ($item == 'of') {\n $of: true;\n } @else {\n $error: true;\n }\n\n } @else if ($type == 'number') or ($type == 'list') { // Numbers & lists…\n\n @if not ($span or $of) {\n // We don't have a span, and we're not expecting context…\n $span: $item;\n } @else if ($of) and (not $columns) {\n // We are expecting context…\n $columns: $item;\n } @else {\n $error: true;\n }\n\n } @else {\n $error: true;\n }\n }\n\n @if $error {\n @return _susy-error('#{$parse-error} #{$details}', 'susy-parse');\n }\n }\n\n // If we have span, merge it in\n @if $span {\n $return: map-merge($return, ('span': $span));\n }\n\n // If we have columns, merge them in\n @if $columns {\n $return: map-merge($return, ('columns': $columns));\n }\n\n // Return the map of settings…\n @return $return;\n}\n", + "/// Syntax Utilities for Extending Susy\n/// ===================================\n/// There are many steps involved\n/// when translating between the Susy syntax layer,\n/// and the Su core math.\n/// That entire process can be condensed with these two functions.\n/// For anyone that wants to access the full power of Susy,\n/// and build their own plugins, functions, or mixins –\n/// this is the primary API for compiling user input,\n/// and accessing the core math.\n///\n/// This is the same technique we use internally,\n/// to keep our API layer simple and light-weight.\n/// Every function accepts two arguments,\n/// a \"shorthand\" description of the span or context,\n/// and an optional settings-map to override global defaults.\n///\n/// - Use `susy-compile()` to parse, merge, and normalize\n/// all the user settings into a single map.\n/// - Then use `su-call()` to call one of the core math functions,\n/// with whatever data is needed for that function.\n///\n/// @group plugin-utils\n/// @see susy-compile\n/// @see su-call\n///\n/// @example scss - Susy API `gutter` function\n/// @function susy-gutter(\n/// $context: susy-get('columns'),\n/// $config: ()\n/// ) {\n/// // compile and normalize all user arguments and global settings\n/// $context: susy-compile($context, $config, 'context-only');\n/// // call `su-gutter` with the appropriate data\n/// @return su-call('su-gutter', $context);\n/// }\n///\n/// @example scss - Sample `span` mixin for floated grids\n/// @mixin span(\n/// $span,\n/// $config: ()\n/// ) {\n/// $context: susy-compile($span, $config);\n/// width: su-call('su-span', $context);\n///\n/// @if index($span, 'last') {\n/// float: right;\n/// } @else {\n/// float: left;\n/// margin-right: su-call('su-gutter', $context);\n/// }\n/// }\n\n\n\n// Compile\n// -------\n/// Susy's syntax layer has various moving parts,\n/// with syntax-parsing for the grid/span shorthand,\n/// and normalization for each of the resulting values.\n/// The compile function rolls this all together\n/// in a single call –\n/// for quick access from our internal API functions,\n/// or any additional functions and mixins you add to your project.\n/// Pass user input and configuration maps to the compiler,\n/// and it will hand back a map of values ready for Su.\n/// Combine this with the `su-call` function\n/// to quickly parse, normalize, and process grid calculations.\n///\n/// @group plugin-utils\n/// @see su-call\n///\n/// @param {list | map} $shorthand -\n/// Shorthand expression to define the width of the span,\n/// optionally containing:\n/// - a count, length, or column-list span;\n/// - `at $n`, `first`, or `last` location on asymmetrical grids;\n/// - `narrow`, `wide`, or `wider` for optionally spreading\n/// across adjacent gutters;\n/// - `of $n ` for available grid columns\n/// and spread of the container\n/// (span counts like `of 6` are only valid\n/// in the context of symmetrical grids);\n/// - and `set-gutters $n` to override global gutter settings\n/// @param {map} $config [null] -\n/// Optional map of Susy grid configuration settings\n/// @param {bool} $context-only [false] -\n/// Allow the parser to ignore span and span-spread values,\n/// only parsing context and container-spread\n///\n/// @return {map} -\n/// Parsed and normalized map of settings,\n/// based on global and local configuration,\n/// alongwith shorthad adjustments.\n///\n/// @example scss -\n/// $user-input: 3 wide of susy-repeat(6, 120px) set-gutters 10px;\n/// $grid-data: susy-compile($user-input, $susy);\n///\n/// @each $key, $value in $grid-data {\n/// /* #{$key}: #{$value}, */\n/// }\n@function susy-compile(\n $short,\n $config: null,\n $context-only: false\n) {\n // Get and normalize config\n $config: if($config, susy-settings($config), susy-settings());\n $normal-config: susy-normalize($config);\n\n // Parse and normalize shorthand\n @if (type-of($short) != 'map') and (length($short) > 0) {\n $short: susy-parse($short, $context-only);\n }\n\n $normal-short: susy-normalize($short, $normal-config);\n\n // Merge and return\n @return map-merge($normal-config, $normal-short);\n}\n\n\n\n// Call\n// ----\n/// The Susy parsing and normalization process\n/// results in a map of configuration settings,\n/// much like the global `$susy` settings map.\n/// In order to pass that information along to Su math functions,\n/// the proper values have to be picked out,\n/// and converted to arguments.\n///\n/// The `su-call` function streamlines that process,\n/// weeding out the unnecessary data,\n/// and passing the rest along to Su in the proper format.\n/// Combine this with `susy-compile` to quickly parse,\n/// normalize, and process grid calculations.\n///\n/// @group plugin-utils\n///\n/// @require su-span\n/// @require su-gutter\n/// @require su-slice\n/// @see susy-compile\n///\n/// @param {'su-span' | 'su-gutter' | 'su-slice'} $name -\n/// Name of the Su math function to call.\n/// @param {map} $config -\n/// Parsed and normalized map of Susy configuration settings\n/// to use for math-function arguments.\n///\n/// @return {*} -\n/// Results of the function being called.\n///\n/// @example scss -\n/// $user-input: 3 wide of susy-repeat(6, 120px) set-gutters 10px;\n/// $grid-data: susy-compile($user-input, $susy);\n///\n/// .su-span {\n/// width: su-call('su-span', $grid-data);\n/// }\n@function su-call(\n $name,\n $config\n) {\n $grid-function-args: (\n 'su-span': ('span', 'columns', 'gutters', 'spread', 'container-spread', 'location'),\n 'su-gutter': ('columns', 'gutters', 'container-spread'),\n 'su-slice': ('span', 'columns', 'location'),\n );\n\n $args: map-get($grid-function-args, $name);\n\n @if not $args {\n $options: 'Try one of these: #{map-keys($grid-function-args)}';\n @return _susy-error(\n '#{$name} is not a public Su function. #{$options}',\n 'su-call');\n }\n\n $call: if(function-exists('get-function'), get-function($name), $name);\n $output: ();\n\n @each $arg in $args {\n $value: map-get($config, $arg);\n $output: if($value, map-merge($output, ($arg: $value)), $output);\n }\n\n @return call($call, $output...);\n}\n", + "/// Susy3 API Functions\n/// ===================\n/// These three functions form the core of Susy's\n/// layout-building grid API.\n///\n/// - Use `span()` and `gutter()` to return any grid-width,\n/// and apply the results wherever you need them:\n/// CSS `width`, `margin`, `padding`, `flex-basis`, `transform`, etc.\n/// - For asymmetrical-fluid grids,\n/// `slice()` can help manage your nesting context.\n///\n/// All three functions come with an unprefixed alias by default,\n/// using the `susy` import.\n/// Import the `susy-prefix` partial instead,\n/// if you only only want prefixed versions of the API.\n///\n/// This is a thin syntax-sugar shell around\n/// the \"Su\" core-math functions: `su-span`, `su-gutter`, and `su-slice`.\n/// If you prefer the more constrained syntax of the math engine,\n/// you are welcome to use those functions instead.\n///\n/// @group b-api\n/// @see susy-span\n/// @see susy-gutter\n/// @see susy-slice\n/// @see su-span\n/// @see su-gutter\n/// @see su-slice\n\n\n\n/// ## Shorthand\n///\n/// All functions draw on the same shorthand syntax in two parts,\n/// seperated by the word `of`.\n///\n/// ### Span Syntax: `` [`` ``]\n/// The first part describes the\n/// **span** width, location, and spread in any order.\n/// Only the width is required:\n///\n/// - `span(2)` will return the width of 2 columns.\n/// - `span(3 wide)` will return 3-columns, with an additional gutter.\n/// - location is only needed with asymmetrical grids,\n/// where `span(3 at 2)` will return the width of\n/// specific columns on the grid.\n/// Since these are functions, they will not handle placement for you.\n///\n/// ### Context Syntax: `[of ]`\n/// The second half of Susy's shorthand\n/// describes the grid-**context** –\n/// available columns, container-spread, and optional gutter override –\n/// in any order.\n/// All of these settings have globally-defined defaults:\n///\n/// - `span(2 of 6)` will set the context to\n/// a slice of 6 columns from the global grid.\n/// More details below.\n/// - `span(2 of 12 wide)` changes the container-spread\n/// as well as the column-context.\n/// - `span(2 of 12 set-gutters 0.5em)`\n/// will override the global gutters setting\n/// for this one calculation.\n///\n/// A single unitless number for `columns`\n/// will be treated as a slice of the parent grid.\n/// On a grid with `columns: susy-repeat(12, 120px)`,\n/// the shorthand `of 4` will use the parent `120px` column-width.\n/// You can also be more explicit,\n/// and say `of susy-repeat(4, 100px)`.\n/// If you are using asymmetrical grids,\n/// like `columns: (1 1 2 3 5 8)`,\n/// Susy can't slice it for you without knowing which columns you want.\n/// The `slice` function accepts exactly the same syntax as `span`,\n/// but returns a list of columns rather than a width.\n/// Use it in your context like `of slice(first 3)`.\n///\n/// @group b-api\n\n\n\n// Susy Span\n// ---------\n/// This is the primary function in Susy —\n/// used to return the width of a span across one or more columns,\n/// and any relevant gutters along the way.\n/// With the default settings,\n/// `span(3)` will return the width of 3 columns,\n/// and the 2 intermediate gutters.\n/// This can be used to set the `width` property of grid elements,\n/// or `margin` and `padding`\n/// to push, pull, and pad your elements.\n///\n/// - This is a thin syntax-sugar shell around\n/// the core-math `su-span()` function.\n/// - The un-prefixed alias `span()` is available by default.\n///\n/// @group b-api\n/// @see su-span\n/// @see $susy\n///\n/// @param {list} $span -\n/// Shorthand expression to define the width of the span,\n/// optionally containing:\n/// - a count, length, or column-list span.\n/// - `at $n`, `first`, or `last` location on asymmetrical grids,\n/// where `at 1 == first`,\n/// and `last` will calculate the proper location\n/// based on columns and span.\n/// - `narrow`, `wide`, or `wider` for optionally spreading\n/// across adjacent gutters.\n/// - `of $n ` for available grid columns\n/// and spread of the container.\n/// Span counts like `of 6` are valid\n/// in the context of symmetrical grids,\n/// where Susy can safely infer a slice of the parent columns.\n/// - and `set-gutters $n` to override global gutter settings.\n///\n/// @param {map} $config [()] -\n/// Optional map of Susy grid configuration settings.\n/// See `$susy` documentation for details.\n///\n/// @return {length} -\n/// Calculated length value, using the units given,\n/// or converting to `%` for fraction-based grids,\n/// or a full `calc` function when units/fractions\n/// are not comparable outside the browser.\n///\n/// @example scss - span half the grid\n/// .foo {\n/// // the result is a bit under 50% to account for gutters\n/// width: susy-span(6 of 12);\n/// }\n///\n/// @example scss - span a specific segment of asymmetrical grid\n/// .foo {\n/// width: susy-span(3 at 3 of (1 2 3 5 8));\n/// }\n@function susy-span(\n $span,\n $config: ()\n) {\n $output: susy-compile($span, $config);\n\n @if map-get($output, 'span') {\n @return su-call('su-span', $output);\n }\n\n $actual: '[#{type-of($span)}] `#{inspect($span)}`';\n @return _susy-error(\n 'Unable to determine span value from #{$actual}.',\n 'susy-span');\n}\n\n\n\n// Susy Gutter\n// -----------\n/// The gutter function returns\n/// the width of a single gutter on your grid,\n/// to be applied where you see fit –\n/// on `margins`, `padding`, `transform`, or element `width`.\n///\n/// - This is a thin syntax-sugar shell around\n/// the core-math `su-gutter()` function.\n/// - The un-prefixed alias `gutter()` is available by default.\n///\n/// @group b-api\n/// @see su-gutter\n/// @see $susy\n///\n/// @param {list | number} $context [null] -\n/// Optional context for nested gutters,\n/// including shorthand for\n/// `columns`, `gutters`, and `container-spread`\n/// (additional shorthand will be ignored)\n///\n/// @param {map} $config [()] -\n/// Optional map of Susy grid configuration settings.\n/// See `$susy` documentation for details.\n///\n/// @return {length} -\n/// Width of a gutter as `%` of current context,\n/// or in the units defined by `column-width` when available\n///\n/// @example scss - add gutters before or after an element\n/// .floats {\n/// float: left;\n/// width: span(3 of 6);\n/// margin-left: gutter(of 6);\n/// }\n///\n/// @example scss - add gutters to padding\n/// .flexbox {\n/// flex: 1 1 span(3 wide of 6 wide);\n/// padding: gutter(of 6) / 2;\n/// }\n///\n@function susy-gutter(\n $context: susy-get('columns'),\n $config: ()\n) {\n $context: susy-compile($context, $config, 'context-only');\n\n @return su-call('su-gutter', $context);\n}\n\n\n\n// Susy Slice\n// ----------\n/// Working with asymmetrical grids (un-equal column widths)\n/// can be challenging – \n/// expecially when they involve fluid/fractional elements.\n/// Describing a context `of (15em 6em 6em 6em 15em)` is a lot\n/// to put inside the span or gutter function shorthand.\n/// This slice function returns a sub-slice of asymmetrical columns to use\n/// for a nested context.\n/// `slice(3 at 2)` will give you a subset of the global grid,\n/// spanning 3 columns, starting with the second.\n///\n/// - This is a thin syntax-sugar shell around\n/// the core-math `su-slice()` function.\n/// - The un-prefixed alias `slice()` is available by default.\n///\n/// @group b-api\n/// @see su-slice\n/// @see $susy\n///\n/// @param {list} $span -\n/// Shorthand expression to define the subset span, optionally containing:\n/// - `at $n`, `first`, or `last` location on asymmetrical grids;\n/// - `of $n ` for available grid columns\n/// and spread of the container\n/// - Span-counts like `of 6` are only valid\n/// in the context of symmetrical grids\n/// - Valid spreads include `narrow`, `wide`, or `wider`\n///\n/// @param {map} $config [()] -\n/// Optional map of Susy grid configuration settings.\n/// See `$susy` documentation for details.\n///\n/// @return {list} -\n/// Subset list of columns for use for a nested context\n///\n/// @example scss - Return a nested segment of asymmetrical grid\n/// $context: susy-slice(3 at 3 of (1 2 3 5 8));\n/// /* $context: #{$context}; */\n@function susy-slice(\n $span,\n $config: ()\n) {\n $span: susy-compile($span, $config);\n\n @return su-call('su-slice', $span);\n}\n\n\n\n/// ## Building Grids\n/// The web has come a long way\n/// since the days of double-margin-hacks\n/// and inconsistent subpixel rounding.\n/// In addition to floats and tables,\n/// we can now use much more powerful tools,\n/// like flexbox and CSS grid,\n/// to build more interesting and responsive layouts.\n///\n/// With Susy3, we hope you'll start moving in that direction.\n/// You can still build classic 12-column Grid Systems,\n/// and we'll help you get there,\n/// but Susy3 is primarily designed for a grid-math-on-demand\n/// approach to layout:\n/// applying our functions only where you really need grid math.\n/// Read the [intro article by OddBird][welcome] for more details.\n///\n/// [welcome]: http://oddbird.net/2017/06/28/susy3/\n///\n/// @group b-api\n/// @link http://oddbird.net/2017/06/28/susy3/ Article: Welcome to Susy3\n///\n/// @example scss - floats\n/// .float {\n/// width: span(3);\n/// margin-right: gutter();\n/// }\n///\n/// @example scss - flexbox\n/// .flexbox {\n/// flex: 1 1 span(3);\n/// // half a gutter on either side…\n/// padding: 0 gutter() / 2;\n/// }\n///\n/// @example scss - pushing and pulling\n/// .push-3 {\n/// margin-left: span(3 wide);\n/// }\n///\n/// .pull-3 {\n/// margin-left: 0 - span(3 wide);\n/// }\n///\n/// @example scss - building an attribute system\n/// // markup example:
\n/// [data-span] {\n/// float: left;\n///\n/// &:not([data-span*='last']) {\n/// margin-right: gutter();\n/// }\n/// }\n///\n/// @for $span from 1 through length(susy-get('columns')) {\n/// [data-span*='#{$span}'] {\n/// width: span($span);\n/// }\n/// }\n", + "// Unprefix Susy\n// =============\n\n\n// Span\n// ----\n/// Un-prefixed alias for `susy-span`\n/// (available by default)\n///\n/// @group api\n/// @alias susy-span\n///\n/// @param {list} $span\n/// @param {map} $config [()]\n@function span(\n $span,\n $config: ()\n) {\n @return susy-span($span, $config);\n}\n\n\n// Gutter\n// ------\n/// Un-prefixed alias for `susy-gutter`\n/// (available by default)\n///\n/// @group api\n/// @alias susy-gutter\n///\n/// @param {integer | list} $context [null] -\n/// @param {map} $config [()]\n@function gutter(\n $context: susy-get('columns'),\n $config: ()\n) {\n @return susy-gutter($context, $config);\n}\n\n\n// Slice\n// -----\n/// Un-prefixed alias for `susy-slice`\n/// (available by default)\n///\n/// @group api\n/// @alias susy-slice\n///\n/// @param {list} $span\n/// @param {map} $config [()]\n@function slice(\n $span,\n $config: ()\n) {\n @return susy-slice($span, $config);\n}\n", + "/* ==========================================================================\n MIXINS\n ========================================================================== */\n\n%tab-focus {\n /* Default*/\n outline: thin dotted $focus-color;\n /* Webkit*/\n outline: 5px auto $focus-color;\n outline-offset: -2px;\n}\n\n/*\n em function\n ========================================================================== */\n\n@function em($target, $context: $doc-font-size) {\n @return ($target / $context) * 1em;\n}\n\n\n/*\n Bourbon clearfix\n ========================================================================== */\n\n/*\n * Provides an easy way to include a clearfix for containing floats.\n * link http://cssmojo.com/latest_new_clearfix_so_far/\n *\n * example scss - Usage\n *\n * .element {\n * @include clearfix;\n * }\n *\n * example css - CSS Output\n *\n * .element::after {\n * clear: both;\n * content: \"\";\n * display: table;\n * }\n*/\n\n@mixin clearfix {\n clear: both;\n\n &::after {\n clear: both;\n content: \"\";\n display: table;\n }\n}\n\n/*\n Compass YIQ Color Contrast\n https://github.com/easy-designs/yiq-color-contrast\n ========================================================================== */\n\n@function yiq-is-light(\n $color,\n $threshold: $yiq-contrasted-threshold\n) {\n $red: red($color);\n $green: green($color);\n $blue: blue($color);\n\n $yiq: (($red*299)+($green*587)+($blue*114))/1000;\n\n @if $yiq-debug { @debug $yiq, $threshold; }\n\n @return if($yiq >= $threshold, true, false);\n}\n\n@function yiq-contrast-color(\n $color,\n $dark: $yiq-contrasted-dark-default,\n $light: $yiq-contrasted-light-default,\n $threshold: $yiq-contrasted-threshold\n) {\n @return if(yiq-is-light($color, $threshold), $yiq-contrasted-dark-default, $yiq-contrasted-light-default);\n}\n\n@mixin yiq-contrasted(\n $background-color,\n $dark: $yiq-contrasted-dark-default,\n $light: $yiq-contrasted-light-default,\n $threshold: $yiq-contrasted-threshold\n) {\n background-color: $background-color;\n color: yiq-contrast-color($background-color, $dark, $light, $threshold);\n}", + "/* ==========================================================================\n STYLE RESETS\n ========================================================================== */\n\n* { box-sizing: border-box; }\n\nhtml {\n /* apply a natural box layout model to all elements */\n box-sizing: border-box;\n background-color: $background-color;\n font-size: 16px;\n\n @include breakpoint($medium) {\n font-size: 18px;\n }\n\n @include breakpoint($large) {\n font-size: 20px;\n }\n\n @include breakpoint($x-large) {\n font-size: 22px;\n }\n\n -webkit-text-size-adjust: 100%;\n -ms-text-size-adjust: 100%;\n}\n\n/* Remove margin */\n\nbody { margin: 0; }\n\n/* Selected elements */\n\n::-moz-selection {\n color: #fff;\n background: #000;\n}\n\n::selection {\n color: #fff;\n background: #000;\n}\n\n/* Display HTML5 elements in IE6-9 and FF3 */\n\narticle,\naside,\ndetails,\nfigcaption,\nfigure,\nfooter,\nheader,\nhgroup,\nmain,\nnav,\nsection {\n display: block;\n}\n\n/* Display block in IE6-9 and FF3 */\n\naudio,\ncanvas,\nvideo {\n display: inline-block;\n *display: inline;\n *zoom: 1;\n}\n\n/* Prevents modern browsers from displaying 'audio' without controls */\n\naudio:not([controls]) {\n display: none;\n}\n\na {\n color: $link-color;\n}\n\n/* Apply focus state */\n\na:focus {\n @extend %tab-focus;\n}\n\n/* Remove outline from links */\n\na:hover,\na:active {\n outline: 0;\n}\n\n/* Prevent sub and sup affecting line-height in all browsers */\n\nsub,\nsup {\n position: relative;\n font-size: 75%;\n line-height: 0;\n vertical-align: baseline;\n}\n\nsup {\n top: -0.5em;\n}\n\nsub {\n bottom: -0.25em;\n}\n\n/* img border in anchor's and image quality */\n\nimg {\n /* Responsive images (ensure images don't scale beyond their parents) */\n max-width: 100%; /* part 1: Set a maximum relative to the parent*/\n width: auto\\9; /* IE7-8 need help adjusting responsive images*/\n height: auto; /* part 2: Scale the height according to the width, otherwise you get stretching*/\n\n vertical-align: middle;\n border: 0;\n -ms-interpolation-mode: bicubic;\n}\n\n/* Prevent max-width from affecting Google Maps */\n\n#map_canvas img,\n.google-maps img {\n max-width: none;\n}\n\n/* Consistent form font size in all browsers, margin changes, misc */\n\nbutton,\ninput,\nselect,\ntextarea {\n margin: 0;\n font-size: 100%;\n vertical-align: middle;\n}\n\nbutton,\ninput {\n *overflow: visible; /* inner spacing ie IE6/7*/\n line-height: normal; /* FF3/4 have !important on line-height in UA stylesheet*/\n}\n\nbutton::-moz-focus-inner,\ninput::-moz-focus-inner { /* inner padding and border oddities in FF3/4*/\n padding: 0;\n border: 0;\n}\n\nbutton,\nhtml input[type=\"button\"], // avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio` and `video` controls\ninput[type=\"reset\"],\ninput[type=\"submit\"] {\n -webkit-appearance: button; /* corrects inability to style clickable `input` types in iOS*/\n cursor: pointer; /* improves usability and consistency of cursor style between image-type `input` and others*/\n}\n\nlabel,\nselect,\nbutton,\ninput[type=\"button\"],\ninput[type=\"reset\"],\ninput[type=\"submit\"],\ninput[type=\"radio\"],\ninput[type=\"checkbox\"] {\n cursor: pointer; /* improves usability and consistency of cursor style between image-type `input` and others*/\n}\n\ninput[type=\"search\"] { /* Appearance in Safari/Chrome*/\n box-sizing: border-box;\n -webkit-appearance: textfield;\n}\n\ninput[type=\"search\"]::-webkit-search-decoration,\ninput[type=\"search\"]::-webkit-search-cancel-button {\n -webkit-appearance: none; /* inner-padding issues in Chrome OSX, Safari 5*/\n}\n\ntextarea {\n overflow: auto; /* remove vertical scrollbar in IE6-9*/\n vertical-align: top; /* readability and alignment cross-browser*/\n}", + "/* ==========================================================================\n BASE ELEMENTS\n ========================================================================== */\n\nhtml {\n /* sticky footer fix */\n position: relative;\n min-height: 100%;\n}\n\nbody {\n margin: 0;\n padding: 0;\n color: $text-color;\n font-family: $global-font-family;\n line-height: 1.5;\n\n &.overflow--hidden {\n /* when primary navigation is visible, the content in the background won't scroll */\n overflow: hidden;\n }\n}\n\nh1,\nh2,\nh3,\nh4,\nh5,\nh6 {\n margin: 2em 0 0.5em;\n line-height: 1.2;\n font-family: $header-font-family;\n font-weight: bold;\n}\n\nh1 {\n margin-top: 0;\n font-size: $h-size-1;\n}\n\nh2 {\n font-size: $h-size-2;\n}\n\nh3 {\n font-size: $h-size-3;\n}\n\nh4 {\n font-size: $h-size-4;\n}\n\nh5 {\n font-size: $h-size-5;\n}\n\nh6 {\n font-size: $h-size-6;\n}\n\nsmall,\n.small {\n font-size: $type-size-6;\n}\n\np {\n margin-bottom: 1.3em;\n}\n\nu,\nins {\n text-decoration: none;\n border-bottom: 1px solid $text-color;\n a {\n color: inherit;\n }\n}\n\ndel a {\n color: inherit;\n}\n\n/* reduce orphans and widows when printing */\n\np,\npre,\nblockquote,\nul,\nol,\ndl,\nfigure,\ntable,\nfieldset {\n orphans: 3;\n widows: 3;\n}\n\n/* abbreviations */\n\nabbr[title],\nabbr[data-original-title] {\n text-decoration: none;\n cursor: help;\n border-bottom: 1px dotted $text-color;\n}\n\n/* blockquotes */\n\nblockquote {\n margin: 2em 1em 2em 0;\n padding-left: 1em;\n padding-right: 1em;\n font-style: italic;\n border-left: 0.25em solid $primary-color;\n\n cite {\n font-style: italic;\n\n &:before {\n content: \"\\2014\";\n padding-right: 5px;\n }\n }\n}\n\n/* links */\n\na {\n &:focus {\n @extend %tab-focus;\n }\n\n &:visited {\n color: $link-color-visited;\n }\n\n &:hover {\n color: $link-color-hover;\n outline: 0;\n }\n}\n\n/* buttons */\n\nbutton:focus {\n @extend %tab-focus;\n}\n\n/* code */\n\ntt,\ncode,\nkbd,\nsamp,\npre {\n font-family: $monospace;\n}\n\npre {\n overflow-x: auto; /* add scrollbars to wide code blocks*/\n}\n\n/* horizontal rule */\n\nhr {\n display: block;\n margin: 1em 0;\n border: 0;\n border-top: 1px solid $border-color;\n}\n\n/* lists */\n\nul li,\nol li {\n margin-bottom: 0.5em;\n}\n\nli ul,\nli ol {\n margin-top: 0.5em;\n}\n\n/*\n Media and embeds\n ========================================================================== */\n\n/* Figures and images */\n\nfigure {\n display: -webkit-box;\n display: flex;\n -webkit-box-pack: justify;\n justify-content: space-between;\n -webkit-box-align: start;\n align-items: flex-start;\n flex-wrap: wrap;\n margin: 2em 0;\n\n img,\n iframe,\n .fluid-width-video-wrapper {\n margin-bottom: 1em;\n }\n\n img {\n width: 100%;\n border-radius: $border-radius;\n -webkit-transition: $global-transition;\n transition: $global-transition;\n }\n\n > a {\n display: block;\n }\n\n &.half {\n > a,\n > img {\n @include breakpoint($small) {\n width: calc(50% - 0.5em);\n }\n }\n\n figcaption {\n width: 100%;\n }\n }\n\n &.third {\n > a,\n > img {\n @include breakpoint($small) {\n width: calc(33.3333% - 0.5em);\n }\n }\n\n figcaption {\n width: 100%;\n }\n }\n}\n\n/* Figure captions */\n\nfigcaption {\n margin-bottom: 0.5em;\n color: $muted-text-color;\n font-family: $caption-font-family;\n font-size: $type-size-6;\n\n a {\n -webkit-transition: $global-transition;\n transition: $global-transition;\n\n &:hover {\n color: $link-color-hover;\n }\n }\n}\n\n/* Fix IE9 SVG bug */\n\nsvg:not(:root) {\n overflow: hidden;\n}\n\n/*\n Navigation lists\n ========================================================================== */\n\n/**\n * Removes margins, padding, and bullet points from navigation lists\n *\n * Example usage:\n * \n */\n\nnav {\n ul {\n margin: 0;\n padding: 0;\n }\n\n li {\n list-style: none;\n }\n\n a {\n text-decoration: none;\n }\n\n /* override white-space for nested lists */\n ul li,\n ol li {\n margin-bottom: 0;\n }\n\n li ul,\n li ol {\n margin-top: 0;\n }\n}\n\n/*\n Global animation transition\n ========================================================================== */\n\nb,\ni,\nstrong,\nem,\nblockquote,\np,\nq,\nspan,\nfigure,\nimg,\nh1,\nh2,\nheader,\ninput,\na,\ntr,\ntd,\nform button,\ninput[type=\"submit\"],\n.btn,\n.highlight,\n.archive__item-teaser {\n -webkit-transition: $global-transition;\n transition: $global-transition;\n}\n", + "/* ==========================================================================\n Forms\n ========================================================================== */\n\nform {\n margin: 0 0 5px 0;\n padding: 1em;\n background-color: $form-background-color;\n\n fieldset {\n margin-bottom: 5px;\n padding: 0;\n border-width: 0;\n }\n\n legend {\n display: block;\n width: 100%;\n margin-bottom: 5px * 2;\n *margin-left: -7px;\n padding: 0;\n color: $text-color;\n border: 0;\n white-space: normal;\n }\n\n p {\n margin-bottom: (5px / 2);\n }\n\n ul {\n list-style-type: none;\n margin: 0 0 5px 0;\n padding: 0;\n }\n\n br {\n display: none;\n }\n}\n\nlabel,\ninput,\nbutton,\nselect,\ntextarea {\n vertical-align: baseline;\n *vertical-align: middle;\n}\n\ninput,\nbutton,\nselect,\ntextarea {\n box-sizing: border-box;\n font-family: $sans-serif;\n}\n\nlabel {\n display: block;\n margin-bottom: 0.25em;\n color: $text-color;\n cursor: pointer;\n\n small {\n font-size: $type-size-6;\n }\n\n input,\n textarea,\n select {\n display: block;\n }\n}\n\ninput,\ntextarea,\nselect {\n display: inline-block;\n width: 100%;\n padding: 0.25em;\n margin-bottom: 0.5em;\n color: $text-color;\n background-color: $background-color;\n border: $border-color;\n border-radius: $border-radius;\n box-shadow: $box-shadow;\n}\n\n.input-mini {\n width: 60px;\n}\n\n.input-small {\n width: 90px;\n}\n\ninput[type=\"image\"],\ninput[type=\"checkbox\"],\ninput[type=\"radio\"] {\n width: auto;\n height: auto;\n padding: 0;\n margin: 3px 0;\n *margin-top: 0;\n line-height: normal;\n cursor: pointer;\n border-radius: 0;\n border: 0 \\9;\n box-shadow: none;\n}\n\ninput[type=\"checkbox\"],\ninput[type=\"radio\"] {\n box-sizing: border-box;\n padding: 0;\n *width: 13px;\n *height: 13px;\n}\n\ninput[type=\"image\"] {\n border: 0;\n}\n\ninput[type=\"file\"] {\n width: auto;\n padding: initial;\n line-height: initial;\n border: initial;\n background-color: transparent;\n background-color: initial;\n box-shadow: none;\n}\n\ninput[type=\"button\"],\ninput[type=\"reset\"],\ninput[type=\"submit\"] {\n width: auto;\n height: auto;\n cursor: pointer;\n *overflow: visible;\n}\n\nselect,\ninput[type=\"file\"] {\n *margin-top: 4px;\n}\n\nselect {\n width: auto;\n background-color: #fff;\n}\n\nselect[multiple],\nselect[size] {\n height: auto;\n}\n\ntextarea {\n resize: vertical;\n height: auto;\n overflow: auto;\n vertical-align: top;\n}\n\ninput[type=\"hidden\"] {\n display: none;\n}\n\n.form {\n position: relative;\n}\n\n.radio,\n.checkbox {\n padding-left: 18px;\n font-weight: normal;\n}\n\n.radio input[type=\"radio\"],\n.checkbox input[type=\"checkbox\"] {\n float: left;\n margin-left: -18px;\n}\n\n.radio.inline,\n.checkbox.inline {\n display: inline-block;\n padding-top: 5px;\n margin-bottom: 0;\n vertical-align: middle;\n}\n\n.radio.inline + .radio.inline,\n.checkbox.inline + .checkbox.inline {\n margin-left: 10px;\n}\n\n/*\n Disabled state\n ========================================================================== */\n\ninput[disabled],\nselect[disabled],\ntextarea[disabled],\ninput[readonly],\nselect[readonly],\ntextarea[readonly] {\n opacity: 0.5;\n cursor: not-allowed;\n}\n\n/*\n Focus & active state\n ========================================================================== */\n\ninput:focus,\ntextarea:focus {\n border-color: $primary-color;\n outline: 0;\n outline: thin dotted \\9;\n box-shadow: inset 0 1px 3px rgba($text-color, 0.06),\n 0 0 5px rgba($primary-color, 0.7);\n}\n\ninput[type=\"file\"]:focus,\ninput[type=\"radio\"]:focus,\ninput[type=\"checkbox\"]:focus,\nselect:focus {\n box-shadow: none;\n}\n\n/*\n Help text\n ========================================================================== */\n\n.help-block,\n.help-inline {\n color: $muted-text-color;\n}\n\n.help-block {\n display: block;\n margin-bottom: 1em;\n line-height: 1em;\n}\n\n.help-inline {\n display: inline-block;\n vertical-align: middle;\n padding-left: 5px;\n}\n\n/*\n .form-group\n ========================================================================== */\n\n.form-group {\n margin-bottom: 5px;\n padding: 0;\n border-width: 0;\n}\n\n/*\n .form-inline\n ========================================================================== */\n\n.form-inline input,\n.form-inline textarea,\n.form-inline select {\n display: inline-block;\n margin-bottom: 0;\n}\n\n.form-inline label {\n display: inline-block;\n}\n\n.form-inline .radio,\n.form-inline .checkbox,\n.form-inline .radio {\n padding-left: 0;\n margin-bottom: 0;\n vertical-align: middle;\n}\n\n.form-inline .radio input[type=\"radio\"],\n.form-inline .checkbox input[type=\"checkbox\"] {\n float: left;\n margin-left: 0;\n margin-right: 3px;\n}\n\n/*\n .form-search\n ========================================================================== */\n\n.form-search input,\n.form-search textarea,\n.form-search select {\n display: inline-block;\n margin-bottom: 0;\n}\n\n.form-search .search-query {\n padding-left: 14px;\n padding-right: 14px;\n margin-bottom: 0;\n border-radius: 14px;\n}\n\n.form-search label {\n display: inline-block;\n}\n\n.form-search .radio,\n.form-search .checkbox,\n.form-inline .radio {\n padding-left: 0;\n margin-bottom: 0;\n vertical-align: middle;\n}\n\n.form-search .radio input[type=\"radio\"],\n.form-search .checkbox input[type=\"checkbox\"] {\n float: left;\n margin-left: 0;\n margin-right: 3px;\n}\n\n/*\n .form--loading\n ========================================================================== */\n\n.form--loading:before {\n content: \"\";\n}\n\n.form--loading .form__spinner {\n display: block;\n}\n\n.form:before {\n position: absolute;\n top: 0;\n left: 0;\n width: 100%;\n height: 100%;\n background-color: rgba(255, 255, 255, 0.7);\n z-index: 10;\n}\n\n.form__spinner {\n display: none;\n position: absolute;\n top: 50%;\n left: 50%;\n z-index: 11;\n}\n", + "/* ==========================================================================\n TABLES\n ========================================================================== */\n\ntable {\n display: block;\n margin-bottom: 1em;\n width: 100%;\n font-family: $global-font-family;\n font-size: $type-size-6;\n border-collapse: collapse;\n overflow-x: auto;\n\n & + table {\n margin-top: 1em;\n }\n}\n\nthead {\n background-color: $border-color;\n border-bottom: 2px solid mix(#000, $border-color, 25%);\n}\n\nth {\n padding: 0.5em;\n font-weight: bold;\n text-align: left;\n}\n\ntd {\n padding: 0.5em;\n border-bottom: 1px solid mix(#000, $border-color, 25%);\n}\n\ntr,\ntd,\nth {\n vertical-align: middle;\n}", + "/* ==========================================================================\n ANIMATIONS\n ========================================================================== */\n\n@-webkit-keyframes intro {\n 0% {\n opacity: 0;\n }\n 100% {\n opacity: 1;\n }\n}\n\n@keyframes intro {\n 0% {\n opacity: 0;\n }\n 100% {\n opacity: 1;\n }\n}", + "/* ==========================================================================\n BUTTONS\n ========================================================================== */\n\n/*\n Default button\n ========================================================================== */\n\n.btn {\n /* default */\n display: inline-block;\n margin-bottom: 0.25em;\n padding: 0.5em 1em;\n font-family: $sans-serif;\n font-size: $type-size-6;\n font-weight: bold;\n text-align: center;\n text-decoration: none;\n border-width: 0;\n border-radius: $border-radius;\n cursor: pointer;\n\n .icon {\n margin-right: 0.5em;\n }\n\n .icon + .hidden {\n margin-left: -0.5em; /* override for hidden text*/\n }\n\n /* button colors */\n $buttoncolors:\n (primary, $primary-color),\n (inverse, #fff),\n (light-outline, transparent),\n (success, $success-color),\n (warning, $warning-color),\n (danger, $danger-color),\n (info, $info-color),\n (facebook, $facebook-color),\n (twitter, $twitter-color),\n (linkedin, $linkedin-color);\n\n @each $buttoncolor, $color in $buttoncolors {\n &--#{$buttoncolor} {\n @include yiq-contrasted($color);\n @if ($buttoncolor == inverse) {\n border: 1px solid $border-color;\n }\n @if ($buttoncolor == light-outline) {\n border: 1px solid #fff;\n }\n\n &:visited {\n @include yiq-contrasted($color);\n }\n\n &:hover {\n @include yiq-contrasted(mix(#000, $color, 20%));\n }\n }\n }\n\n /* fills width of parent container */\n &--block {\n display: block;\n width: 100%;\n\n + .btn--block {\n margin-top: 0.25em;\n }\n }\n\n /* disabled */\n &--disabled {\n pointer-events: none;\n cursor: not-allowed;\n filter: alpha(opacity=65);\n box-shadow: none;\n opacity: 0.65;\n }\n\n /* extra large button */\n &--x-large {\n font-size: $type-size-4;\n }\n\n /* large button */\n &--large {\n font-size: $type-size-5;\n }\n\n /* small button */\n &--small {\n font-size: $type-size-7;\n }\n}", + "/* ==========================================================================\n NOTICE TEXT BLOCKS\n ========================================================================== */\n\n/**\n * Default Kramdown usage (no indents!):\n *
\n * #### Headline for the Notice\n * Text for the notice\n *
\n */\n\n@mixin notice($notice-color) {\n margin: 2em 0 !important; /* override*/\n padding: 1em;\n color: $text-color;\n font-family: $global-font-family;\n font-size: $type-size-6 !important;\n text-indent: initial; /* override*/\n background-color: mix($background-color, $notice-color, $notice-background-mix);\n border-radius: $border-radius;\n box-shadow: 0 1px 1px rgba($notice-color, 0.25);\n\n h4 {\n margin-top: 0 !important; /* override*/\n margin-bottom: 0.75em;\n line-height: inherit;\n }\n\n @at-root .page__content #{&} h4 {\n /* using at-root to override .page-content h4 font size*/\n margin-bottom: 0;\n font-size: 1em;\n }\n\n p {\n &:last-child {\n margin-bottom: 0 !important; /* override*/\n }\n }\n\n h4 + p {\n /* remove space above paragraphs that appear directly after notice headline*/\n margin-top: 0;\n padding-top: 0;\n }\n\n a {\n color: mix(#000, $notice-color, 10%);\n\n &:hover {\n color: mix(#000, $notice-color, 50%);\n }\n }\n\n @at-root #{selector-unify(&, \"blockquote\")} {\n border-left-color: mix(#000, $notice-color, 10%);\n }\n\n code {\n background-color: mix($background-color, $notice-color, $code-notice-background-mix)\n }\n\n\tpre code {\n\t\tbackground-color: inherit;\n\t}\n\n ul {\n &:last-child {\n margin-bottom: 0; /* override*/\n }\n }\n}\n\n/* Default notice */\n\n.notice {\n @include notice($light-gray);\n}\n\n/* Primary notice */\n\n.notice--primary {\n @include notice($primary-color);\n}\n\n/* Info notice */\n\n.notice--info {\n @include notice($info-color);\n}\n\n/* Warning notice */\n\n.notice--warning {\n @include notice($warning-color);\n}\n\n/* Success notice */\n\n.notice--success {\n @include notice($success-color);\n}\n\n/* Danger notice */\n\n.notice--danger {\n @include notice($danger-color);\n}\n", + "/* ==========================================================================\n MASTHEAD\n ========================================================================== */\n\n.masthead {\n position: relative;\n border-bottom: 1px solid $border-color;\n -webkit-animation: $intro-transition;\n animation: $intro-transition;\n -webkit-animation-delay: 0.15s;\n animation-delay: 0.15s;\n z-index: 20;\n\n &__inner-wrap {\n @include clearfix;\n margin-left: auto;\n margin-right: auto;\n padding: 1em;\n max-width: 100%;\n display: -webkit-box;\n display: -ms-flexbox;\n display: flex;\n -webkit-box-pack: justify;\n -ms-flex-pack: justify;\n justify-content: space-between;\n font-family: $sans-serif-narrow;\n\n @include breakpoint($x-large) {\n max-width: $max-width;\n }\n\n nav {\n z-index: 10;\n }\n\n a {\n text-decoration: none;\n }\n }\n}\n\n.site-logo img {\n max-height: 2rem;\n}\n\n.site-title {\n display: -webkit-box;\n display: -ms-flexbox;\n display: flex;\n -ms-flex-item-align: center;\n align-self: center;\n font-weight: bold;\n // z-index: 20;\n}\n\n.site-subtitle {\n display: block;\n font-size: $type-size-8;\n}\n\n.masthead__menu {\n float: left;\n margin-left: 0;\n margin-right: 0;\n width: 100%;\n clear: both;\n\n .site-nav {\n margin-left: 0;\n\n @include breakpoint($small) {\n float: right;\n }\n }\n\n ul {\n margin: 0;\n padding: 0;\n clear: both;\n list-style-type: none;\n }\n}\n\n.masthead__menu-item {\n display: block;\n list-style-type: none;\n white-space: nowrap;\n\n &--lg {\n padding-right: 2em;\n font-weight: 700;\n }\n}\n", + "/* ==========================================================================\n NAVIGATION\n ========================================================================== */\n\n/*\n Breadcrumb navigation links\n ========================================================================== */\n\n.breadcrumbs {\n @include clearfix;\n margin: 0 auto;\n max-width: 100%;\n padding-left: 1em;\n padding-right: 1em;\n font-family: $sans-serif;\n -webkit-animation: $intro-transition;\n animation: $intro-transition;\n -webkit-animation-delay: 0.3s;\n animation-delay: 0.3s;\n\n @include breakpoint($x-large) {\n max-width: $x-large;\n }\n\n ol {\n padding: 0;\n list-style: none;\n font-size: $type-size-6;\n\n @include breakpoint($large) {\n float: right;\n width: calc(100% - #{$right-sidebar-width-narrow});\n }\n\n @include breakpoint($x-large) {\n width: calc(100% - #{$right-sidebar-width});\n }\n }\n\n li {\n display: inline;\n }\n\n .current {\n font-weight: bold;\n }\n}\n\n/*\n Post pagination navigation links\n ========================================================================== */\n\n.pagination {\n @include clearfix();\n float: left;\n margin-top: 1em;\n padding-top: 1em;\n width: 100%;\n\n ul {\n margin: 0;\n padding: 0;\n list-style-type: none;\n font-family: $sans-serif;\n }\n\n li {\n display: block;\n float: left;\n margin-left: -1px;\n\n a {\n display: block;\n margin-bottom: 0.25em;\n padding: 0.5em 1em;\n font-family: $sans-serif;\n font-size: 14px;\n font-weight: bold;\n line-height: 1.5;\n text-align: center;\n text-decoration: none;\n color: $muted-text-color;\n border: 1px solid mix(#000, $border-color, 25%);\n border-radius: 0;\n\n &:hover {\n color: $link-color-hover;\n }\n\n &.current,\n &.current.disabled {\n color: #fff;\n background: $primary-color;\n }\n\n &.disabled {\n color: rgba($muted-text-color, 0.5);\n pointer-events: none;\n cursor: not-allowed;\n }\n }\n\n &:first-child {\n margin-left: 0;\n\n a {\n border-top-left-radius: $border-radius;\n border-bottom-left-radius: $border-radius;\n }\n }\n\n &:last-child {\n a {\n border-top-right-radius: $border-radius;\n border-bottom-right-radius: $border-radius;\n }\n }\n }\n\n /* next/previous buttons */\n &--pager {\n display: block;\n padding: 1em 2em;\n float: left;\n width: 50%;\n font-family: $sans-serif;\n font-size: $type-size-5;\n font-weight: bold;\n text-align: center;\n text-decoration: none;\n color: $muted-text-color;\n border: 1px solid mix(#000, $border-color, 25%);\n border-radius: $border-radius;\n\n &:hover {\n @include yiq-contrasted($muted-text-color);\n }\n\n &:first-child {\n border-top-right-radius: 0;\n border-bottom-right-radius: 0;\n }\n\n &:last-child {\n margin-left: -1px;\n border-top-left-radius: 0;\n border-bottom-left-radius: 0;\n }\n\n &.disabled {\n color: rgba($muted-text-color, 0.5);\n pointer-events: none;\n cursor: not-allowed;\n }\n }\n}\n\n.page__content + .pagination,\n.page__meta + .pagination,\n.page__share + .pagination,\n.page__comments + .pagination {\n margin-top: 2em;\n padding-top: 2em;\n border-top: 1px solid $border-color;\n}\n\n/*\n Priority plus navigation\n ========================================================================== */\n\n.greedy-nav {\n position: relative;\n display: -webkit-box;\n display: -ms-flexbox;\n display: flex;\n -webkit-box-align: center;\n -ms-flex-align: center;\n align-items: center;\n min-height: $nav-height;\n background: $background-color;\n\n a {\n display: block;\n margin: 0 1rem;\n color: $masthead-link-color;\n text-decoration: none;\n -webkit-transition: none;\n transition: none;\n\n &:hover {\n color: $masthead-link-color-hover;\n }\n\n &.site-logo {\n margin-left: 0;\n margin-right: 0.5rem;\n }\n\n &.site-title {\n margin-left: 0;\n }\n }\n\n img {\n -webkit-transition: none;\n transition: none;\n }\n\n &__toggle {\n -ms-flex-item-align: center;\n align-self: center;\n height: $nav-toggle-height;\n border: 0;\n outline: none;\n background-color: transparent;\n cursor: pointer;\n }\n\n .visible-links {\n display: -webkit-box;\n display: -ms-flexbox;\n display: flex;\n -webkit-box-pack: end;\n -ms-flex-pack: end;\n justify-content: flex-end;\n -webkit-box-flex: 1;\n -ms-flex: 1;\n flex: 1;\n overflow: hidden;\n\n li {\n -webkit-box-flex: 0;\n -ms-flex: none;\n flex: none;\n }\n\n a {\n position: relative;\n\n &:before {\n content: \"\";\n position: absolute;\n left: 0;\n bottom: 0;\n height: 4px;\n background: $primary-color;\n width: 100%;\n -webkit-transition: $global-transition;\n transition: $global-transition;\n -webkit-transform: scaleX(0) translate3d(0, 0, 0);\n transform: scaleX(0) translate3d(0, 0, 0); // hide\n }\n\n &:hover:before {\n -webkit-transform: scaleX(1);\n -ms-transform: scaleX(1);\n transform: scaleX(1); // reveal\n }\n }\n }\n\n .hidden-links {\n position: absolute;\n top: 100%;\n right: 0;\n margin-top: 15px;\n padding: 5px;\n border: 1px solid $border-color;\n border-radius: $border-radius;\n background: $background-color;\n -webkit-box-shadow: 0 2px 4px 0 rgba(#000, 0.16),\n 0 2px 10px 0 rgba(#000, 0.12);\n box-shadow: 0 2px 4px 0 rgba(#000, 0.16), 0 2px 10px 0 rgba(#000, 0.12);\n\n &.hidden {\n display: none;\n }\n\n a {\n margin: 0;\n padding: 10px 20px;\n font-size: $type-size-5;\n\n &:hover {\n color: $masthead-link-color-hover;\n background: $navicon-link-color-hover;\n }\n }\n\n &:before {\n content: \"\";\n position: absolute;\n top: -11px;\n right: 10px;\n width: 0;\n border-style: solid;\n border-width: 0 10px 10px;\n border-color: $border-color transparent;\n display: block;\n z-index: 0;\n }\n\n &:after {\n content: \"\";\n position: absolute;\n top: -10px;\n right: 10px;\n width: 0;\n border-style: solid;\n border-width: 0 10px 10px;\n border-color: $background-color transparent;\n display: block;\n z-index: 1;\n }\n\n li {\n display: block;\n border-bottom: 1px solid $border-color;\n\n &:last-child {\n border-bottom: none;\n }\n }\n }\n}\n\n.no-js {\n .greedy-nav {\n .visible-links {\n -ms-flex-wrap: wrap;\n flex-wrap: wrap;\n overflow: visible;\n }\n }\n}\n\n/*\n Navigation list\n ========================================================================== */\n\n.nav__list {\n margin-bottom: 1.5em;\n\n input[type=\"checkbox\"],\n label {\n display: none;\n }\n\n @include breakpoint(max-width $large - 1px) {\n label {\n position: relative;\n display: inline-block;\n padding: 0.5em 2.5em 0.5em 1em;\n color: $gray;\n font-size: $type-size-6;\n font-weight: bold;\n border: 1px solid $light-gray;\n border-radius: $border-radius;\n z-index: 20;\n -webkit-transition: 0.2s ease-out;\n transition: 0.2s ease-out;\n cursor: pointer;\n\n &:before,\n &:after {\n content: \"\";\n position: absolute;\n right: 1em;\n top: 1.25em;\n width: 0.75em;\n height: 0.125em;\n line-height: 1;\n background-color: $gray;\n -webkit-transition: 0.2s ease-out;\n transition: 0.2s ease-out;\n }\n\n &:after {\n -webkit-transform: rotate(90deg);\n -ms-transform: rotate(90deg);\n transform: rotate(90deg);\n }\n\n &:hover {\n color: #fff;\n border-color: $gray;\n background-color: mix(white, #000, 20%);\n\n &:before,\n &:after {\n background-color: #fff;\n }\n }\n }\n\n /* selected*/\n input:checked + label {\n color: white;\n background-color: mix(white, #000, 20%);\n\n &:before,\n &:after {\n background-color: #fff;\n }\n }\n\n /* on hover show expand*/\n label:hover:after {\n -webkit-transform: rotate(90deg);\n -ms-transform: rotate(90deg);\n transform: rotate(90deg);\n }\n\n input:checked + label:hover:after {\n -webkit-transform: rotate(0);\n -ms-transform: rotate(0);\n transform: rotate(0);\n }\n\n ul {\n margin-bottom: 1em;\n }\n\n a {\n display: block;\n padding: 0.25em 0;\n\n @include breakpoint($large) {\n padding-top: 0.125em;\n padding-bottom: 0.125em;\n }\n\n &:hover {\n text-decoration: underline;\n }\n }\n }\n}\n\n.nav__list .nav__items {\n margin: 0;\n font-size: 1.25rem;\n\n a {\n color: inherit;\n }\n\n .active {\n margin-left: -0.5em;\n padding-left: 0.5em;\n padding-right: 0.5em;\n font-weight: bold;\n }\n\n @include breakpoint(max-width $large - 1px) {\n position: relative;\n max-height: 0;\n opacity: 0%;\n overflow: hidden;\n z-index: 10;\n -webkit-transition: 0.3s ease-in-out;\n transition: 0.3s ease-in-out;\n -webkit-transform: translate(0, 10%);\n -ms-transform: translate(0, 10%);\n transform: translate(0, 10%);\n }\n}\n\n@include breakpoint(max-width $large - 1px) {\n .nav__list input:checked ~ .nav__items {\n -webkit-transition: 0.5s ease-in-out;\n transition: 0.5s ease-in-out;\n max-height: 9999px; /* exaggerate max-height to accommodate tall lists*/\n overflow: visible;\n opacity: 1;\n margin-top: 1em;\n -webkit-transform: translate(0, 0);\n -ms-transform: translate(0, 0);\n transform: translate(0, 0);\n }\n}\n\n.nav__title {\n margin: 0;\n padding: 0.5rem 0.75rem;\n font-family: $sans-serif-narrow;\n font-size: $type-size-5;\n font-weight: bold;\n}\n\n.nav__sub-title {\n display: block;\n margin: 0.5rem 0;\n padding: 0.25rem 0;\n font-family: $sans-serif-narrow;\n font-size: $type-size-6;\n font-weight: bold;\n text-transform: uppercase;\n border-bottom: 1px solid $border-color;\n}\n\n/*\n Table of contents navigation\n ========================================================================== */\n\n.toc {\n font-family: $sans-serif-narrow;\n color: $gray;\n background-color: $background-color;\n border: 1px solid $border-color;\n border-radius: $border-radius;\n -webkit-box-shadow: $box-shadow;\n box-shadow: $box-shadow;\n\n .nav__title {\n color: #fff;\n font-size: $type-size-6;\n background: $primary-color;\n border-top-left-radius: $border-radius;\n border-top-right-radius: $border-radius;\n }\n\n // Scrollspy marks toc items as .active when they are in focus\n .active a {\n @include yiq-contrasted($active-color);\n }\n}\n\n.toc__menu {\n margin: 0;\n padding: 0;\n width: 100%;\n list-style: none;\n font-size: $type-size-6;\n\n @include breakpoint($large) {\n font-size: $type-size-7;\n }\n\n a {\n display: block;\n padding: 0.25rem 0.75rem;\n color: $muted-text-color;\n font-weight: bold;\n line-height: 1.5;\n border-bottom: 1px solid $border-color;\n\n &:hover {\n color: $text-color;\n }\n }\n\n li ul > li a {\n padding-left: 1.25rem;\n font-weight: normal;\n }\n\n li ul li ul > li a {\n padding-left: 1.75rem;\n }\n\n li ul li ul li ul > li a {\n padding-left: 2.25rem;\n }\n\n li ul li ul li ul li ul > li a {\n padding-left: 2.75rem;\n }\n\n li ul li ul li ul li ul li ul > li a {\n padding-left: 3.25rem\n }\n}\n", + "/* ==========================================================================\n FOOTER\n ========================================================================== */\n\n.page__footer {\n @include clearfix;\n float: left;\n margin-left: 0;\n margin-right: 0;\n width: 100%;\n margin-top: 3em;\n color: $muted-text-color;\n -webkit-animation: $intro-transition;\n animation: $intro-transition;\n -webkit-animation-delay: 0.45s;\n animation-delay: 0.45s;\n background-color: $footer-background-color;\n\n footer {\n @include clearfix;\n margin-left: auto;\n margin-right: auto;\n margin-top: 2em;\n max-width: 100%;\n padding: 0 1em 2em;\n\n @include breakpoint($x-large) {\n max-width: $x-large;\n }\n }\n\n a {\n color: inherit;\n text-decoration: none;\n\n &:hover {\n text-decoration: underline;\n }\n }\n\n .fas,\n .fab,\n .far,\n .fal {\n color: $muted-text-color;\n }\n}\n\n.page__footer-copyright {\n font-family: $global-font-family;\n font-size: $type-size-7;\n}\n\n.page__footer-follow {\n ul {\n margin: 0;\n padding: 0;\n list-style-type: none;\n }\n\n li {\n display: inline-block;\n padding-top: 5px;\n padding-bottom: 5px;\n font-family: $sans-serif-narrow;\n font-size: $type-size-6;\n text-transform: uppercase;\n }\n\n li + li:before {\n content: \"\";\n padding-right: 5px;\n }\n\n a {\n padding-right: 10px;\n font-weight: bold;\n }\n\n .social-icons {\n a {\n white-space: nowrap;\n }\n }\n}\n", + "/* ==========================================================================\n SEARCH\n ========================================================================== */\n\n.layout--search {\n .archive__item-teaser {\n margin-bottom: 0.25em;\n }\n}\n\n.search__toggle {\n margin-left: 1rem;\n margin-right: 1rem;\n height: $nav-toggle-height;\n border: 0;\n outline: none;\n color: $primary-color;\n background-color: transparent;\n cursor: pointer;\n -webkit-transition: 0.2s;\n transition: 0.2s;\n\n &:hover {\n color: mix(#000, $primary-color, 25%);\n }\n}\n\n.search-icon {\n width: 100%;\n height: 100%;\n}\n\n.search-content {\n display: none;\n visibility: hidden;\n padding-top: 1em;\n padding-bottom: 1em;\n\n &__inner-wrap {\n width: 100%;\n margin-left: auto;\n margin-right: auto;\n padding-left: 1em;\n padding-right: 1em;\n -webkit-animation: $intro-transition;\n animation: $intro-transition;\n -webkit-animation-delay: 0.15s;\n animation-delay: 0.15s;\n\n @include breakpoint($x-large) {\n max-width: $max-width;\n }\n\n }\n\n &__form {\n background-color: transparent;\n }\n\n .search-input {\n display: block;\n margin-bottom: 0;\n padding: 0;\n border: none;\n outline: none;\n box-shadow: none;\n background-color: transparent;\n font-size: $type-size-3;\n\n @include breakpoint($large) {\n font-size: $type-size-2;\n }\n\n @include breakpoint($x-large) {\n font-size: $type-size-1;\n }\n }\n\n &.is--visible {\n display: block;\n visibility: visible;\n\n &::after {\n content: \"\";\n display: block;\n }\n }\n\n .results__found {\n margin-top: 0.5em;\n font-size: $type-size-6;\n }\n\n .archive__item {\n margin-bottom: 2em;\n\n @include breakpoint($large) {\n width: 75%;\n }\n\n @include breakpoint($x-large) {\n width: 50%;\n }\n }\n\n .archive__item-title {\n margin-top: 0;\n }\n\n .archive__item-excerpt {\n margin-bottom: 0;\n }\n}\n\n/* Algolia search */\n\n.ais-search-box {\n max-width: 100% !important;\n margin-bottom: 2em;\n}\n\n.archive__item-title .ais-Highlight {\n color: $primary-color;\n font-style: normal;\n text-decoration: underline;\n}\n\n.archive__item-excerpt .ais-Highlight {\n color: $primary-color;\n font-style: normal;\n font-weight: bold;\n}\n", + "/* ==========================================================================\n Syntax highlighting\n ========================================================================== */\n\ndiv.highlighter-rouge,\nfigure.highlight {\n position: relative;\n margin-bottom: 1em;\n background: $base00;\n color: $base05;\n font-family: $monospace;\n font-size: $type-size-6;\n line-height: 1.8;\n border-radius: $border-radius;\n\n > pre,\n pre.highlight {\n margin: 0;\n padding: 1em;\n }\n}\n\n.highlight table {\n margin-bottom: 0;\n font-size: 1em;\n border: 0;\n\n td {\n padding: 0;\n width: calc(100% - 1em);\n border: 0;\n\n /* line numbers*/\n &.gutter,\n &.rouge-gutter {\n padding-right: 1em;\n width: 1em;\n color: $base04;\n border-right: 1px solid $base04;\n text-align: right;\n }\n\n /* code */\n &.code,\n &.rouge-code {\n padding-left: 1em;\n }\n }\n\n pre {\n margin: 0;\n }\n}\n\n.highlight pre {\n width: 100%;\n}\n\n.highlight .hll {\n background-color: $base06;\n}\n.highlight {\n .c {\n /* Comment */\n color: $base04;\n }\n .err {\n /* Error */\n color: $base08;\n }\n .k {\n /* Keyword */\n color: $base0e;\n }\n .l {\n /* Literal */\n color: $base09;\n }\n .n {\n /* Name */\n color: $base05;\n }\n .o {\n /* Operator */\n color: $base0c;\n }\n .p {\n /* Punctuation */\n color: $base05;\n }\n .cm {\n /* Comment.Multiline */\n color: $base04;\n }\n .cp {\n /* Comment.Preproc */\n color: $base04;\n }\n .c1 {\n /* Comment.Single */\n color: $base04;\n }\n .cs {\n /* Comment.Special */\n color: $base04;\n }\n .gd {\n /* Generic.Deleted */\n color: $base08;\n }\n .ge {\n /* Generic.Emph */\n font-style: italic;\n }\n .gh {\n /* Generic.Heading */\n color: $base05;\n font-weight: bold;\n }\n .gi {\n /* Generic.Inserted */\n color: $base0b;\n }\n .gp {\n /* Generic.Prompt */\n color: $base04;\n font-weight: bold;\n }\n .gs {\n /* Generic.Strong */\n font-weight: bold;\n }\n .gu {\n /* Generic.Subheading */\n color: $base0c;\n font-weight: bold;\n }\n .kc {\n /* Keyword.Constant */\n color: $base0e;\n }\n .kd {\n /* Keyword.Declaration */\n color: $base0e;\n }\n .kn {\n /* Keyword.Namespace */\n color: $base0c;\n }\n .kp {\n /* Keyword.Pseudo */\n color: $base0e;\n }\n .kr {\n /* Keyword.Reserved */\n color: $base0e;\n }\n .kt {\n /* Keyword.Type */\n color: $base0a;\n }\n .ld {\n /* Literal.Date */\n color: $base0b;\n }\n .m {\n /* Literal.Number */\n color: $base09;\n }\n .s {\n /* Literal.String */\n color: 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\ No newline at end of file diff --git a/assets/js/plugins/gumshoe.js b/assets/js/plugins/gumshoe.js new file mode 100644 index 00000000..713b6eb3 --- /dev/null +++ b/assets/js/plugins/gumshoe.js @@ -0,0 +1,484 @@ +/*! + * gumshoejs v5.1.1 + * A simple, framework-agnostic scrollspy script. + * (c) 2019 Chris Ferdinandi + * MIT License + * http://github.com/cferdinandi/gumshoe + */ + +(function (root, factory) { + if ( typeof define === 'function' && define.amd ) { + define([], (function () { + return factory(root); + })); + } else if ( typeof exports === 'object' ) { + module.exports = factory(root); + } else { + root.Gumshoe = factory(root); + } +})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) { + + 'use strict'; + + // + // Defaults + // + + var defaults = { + + // Active classes + navClass: 'active', + contentClass: 'active', + + // Nested navigation + nested: false, + nestedClass: 'active', + + // Offset & reflow + offset: 0, + reflow: false, + + // Event support + events: true + + }; + + + // + // Methods + // + + /** + * Merge two or more objects together. + * @param {Object} objects The objects to merge together + * @returns {Object} Merged values of defaults and options + */ + var extend = function () { + var merged = {}; + Array.prototype.forEach.call(arguments, (function (obj) { + for (var key in obj) { + if (!obj.hasOwnProperty(key)) return; + merged[key] = obj[key]; + } + })); + return merged; + }; + + /** + * Emit a custom event + * @param {String} type The event type + * @param {Node} elem The element to attach the event to + * @param {Object} detail Any details to pass along with the event + */ + var emitEvent = function (type, elem, detail) { + + // Make sure events are enabled + if (!detail.settings.events) return; + + // Create a new event + var event = new CustomEvent(type, { + bubbles: true, + cancelable: true, + detail: detail + }); + + // Dispatch the event + elem.dispatchEvent(event); + + }; + + /** + * Get an element's distance from the top of the Document. + * @param {Node} elem The element + * @return {Number} Distance from the top in pixels + */ + var getOffsetTop = function (elem) { + var location = 0; + if (elem.offsetParent) { + while (elem) { + location += elem.offsetTop; + elem = elem.offsetParent; + } + } + return location >= 0 ? location : 0; + }; + + /** + * Sort content from first to last in the DOM + * @param {Array} contents The content areas + */ + var sortContents = function (contents) { + if(contents) { + contents.sort((function (item1, item2) { + var offset1 = getOffsetTop(item1.content); + var offset2 = getOffsetTop(item2.content); + if (offset1 < offset2) return -1; + return 1; + })); + } + }; + + /** + * Get the offset to use for calculating position + * @param {Object} settings The settings for this instantiation + * @return {Float} The number of pixels to offset the calculations + */ + var getOffset = function (settings) { + + // if the offset is a function run it + if (typeof settings.offset === 'function') { + return parseFloat(settings.offset()); + } + + // Otherwise, return it as-is + return parseFloat(settings.offset); + + }; + + /** + * Get the document element's height + * @private + * @returns {Number} + */ + var getDocumentHeight = function () { + return Math.max( + document.body.scrollHeight, document.documentElement.scrollHeight, + document.body.offsetHeight, document.documentElement.offsetHeight, + document.body.clientHeight, document.documentElement.clientHeight + ); + }; + + /** + * Determine if an element is in view + * @param {Node} elem The element + * @param {Object} settings The settings for this instantiation + * @param {Boolean} bottom If true, check if element is above bottom of viewport instead + * @return {Boolean} Returns true if element is in the viewport + */ + var isInView = function (elem, settings, bottom) { + var bounds = elem.getBoundingClientRect(); + var offset = getOffset(settings); + if (bottom) { + return parseInt(bounds.bottom, 10) < (window.innerHeight || document.documentElement.clientHeight); + } + return parseInt(bounds.top, 10) <= offset; + }; + + /** + * Check if at the bottom of the viewport + * @return {Boolean} If true, page is at the bottom of the viewport + */ + var isAtBottom = function () { + if (window.innerHeight + window.pageYOffset >= getDocumentHeight()) return true; + return false; + }; + + /** + * Check if the last item should be used (even if not at the top of the page) + * @param {Object} item The last item + * @param {Object} settings The settings for this instantiation + * @return {Boolean} If true, use the last item + */ + var useLastItem = function (item, settings) { + if (isAtBottom() && isInView(item.content, settings, true)) return true; + return false; + }; + + /** + * Get the active content + * @param {Array} contents The content areas + * @param {Object} settings The settings for this instantiation + * @return {Object} The content area and matching navigation link + */ + var getActive = function (contents, settings) { + var last = contents[contents.length-1]; + if (useLastItem(last, settings)) return last; + for (var i = contents.length - 1; i >= 0; i--) { + if (isInView(contents[i].content, settings)) return contents[i]; + } + }; + + /** + * Deactivate parent navs in a nested navigation + * @param {Node} nav The starting navigation element + * @param {Object} settings The settings for this instantiation + */ + var deactivateNested = function (nav, settings) { + + // If nesting isn't activated, bail + if (!settings.nested) return; + + // Get the parent navigation + var li = nav.parentNode.closest('li'); + if (!li) return; + + // Remove the active class + li.classList.remove(settings.nestedClass); + + // Apply recursively to any parent navigation elements + deactivateNested(li, settings); + + }; + + /** + * Deactivate a nav and content area + * @param {Object} items The nav item and content to deactivate + * @param {Object} settings The settings for this instantiation + */ + var deactivate = function (items, settings) { + + // Make sure their are items to deactivate + if (!items) return; + + // Get the parent list item + var li = items.nav.closest('li'); + if (!li) return; + + // Remove the active class from the nav and content + li.classList.remove(settings.navClass); + items.content.classList.remove(settings.contentClass); + + // Deactivate any parent navs in a nested navigation + deactivateNested(li, settings); + + // Emit a custom event + emitEvent('gumshoeDeactivate', li, { + link: items.nav, + content: items.content, + settings: settings + }); + + }; + + + /** + * Activate parent navs in a nested navigation + * @param {Node} nav The starting navigation element + * @param {Object} settings The settings for this instantiation + */ + var activateNested = function (nav, settings) { + + // If nesting isn't activated, bail + if (!settings.nested) return; + + // Get the parent navigation + var li = nav.parentNode.closest('li'); + if (!li) return; + + // Add the active class + li.classList.add(settings.nestedClass); + + // Apply recursively to any parent navigation elements + activateNested(li, settings); + + }; + + /** + * Activate a nav and content area + * @param {Object} items The nav item and content to activate + * @param {Object} settings The settings for this instantiation + */ + var activate = function (items, settings) { + + // Make sure their are items to activate + if (!items) return; + + // Get the parent list item + var li = items.nav.closest('li'); + if (!li) return; + + // Add the active class to the nav and content + li.classList.add(settings.navClass); + items.content.classList.add(settings.contentClass); + + // Activate any parent navs in a nested navigation + activateNested(li, settings); + + // Emit a custom event + emitEvent('gumshoeActivate', li, { + link: items.nav, + content: items.content, + settings: settings + }); + + }; + + /** + * Create the Constructor object + * @param {String} selector The selector to use for navigation items + * @param {Object} options User options and settings + */ + var Constructor = function (selector, options) { + + // + // Variables + // + + var publicAPIs = {}; + var navItems, contents, current, timeout, settings; + + + // + // Methods + // + + /** + * Set variables from DOM elements + */ + publicAPIs.setup = function () { + + // Get all nav items + navItems = document.querySelectorAll(selector); + + // Create contents array + contents = []; + + // Loop through each item, get it's matching content, and push to the array + Array.prototype.forEach.call(navItems, (function (item) { + + // Get the content for the nav item + var content = document.getElementById(decodeURIComponent(item.hash.substr(1))); + if (!content) return; + + // Push to the contents array + contents.push({ + nav: item, + content: content + }); + + })); + + // Sort contents by the order they appear in the DOM + sortContents(contents); + + }; + + /** + * Detect which content is currently active + */ + publicAPIs.detect = function () { + + // Get the active content + var active = getActive(contents, settings); + + // if there's no active content, deactivate and bail + if (!active) { + if (current) { + deactivate(current, settings); + current = null; + } + return; + } + + // If the active content is the one currently active, do nothing + if (current && active.content === current.content) return; + + // Deactivate the current content and activate the new content + deactivate(current, settings); + activate(active, settings); + + // Update the currently active content + current = active; + + }; + + /** + * Detect the active content on scroll + * Debounced for performance + */ + var scrollHandler = function (event) { + + // If there's a timer, cancel it + if (timeout) { + window.cancelAnimationFrame(timeout); + } + + // Setup debounce callback + timeout = window.requestAnimationFrame(publicAPIs.detect); + + }; + + /** + * Update content sorting on resize + * Debounced for performance + */ + var resizeHandler = function (event) { + + // If there's a timer, cancel it + if (timeout) { + window.cancelAnimationFrame(timeout); + } + + // Setup debounce callback + timeout = window.requestAnimationFrame((function () { + sortContents(contents); + publicAPIs.detect(); + })); + + }; + + /** + * Destroy the current instantiation + */ + publicAPIs.destroy = function () { + + // Undo DOM changes + if (current) { + deactivate(current, settings); + } + + // Remove event listeners + window.removeEventListener('scroll', scrollHandler, false); + if (settings.reflow) { + window.removeEventListener('resize', resizeHandler, false); + } + + // Reset variables + contents = null; + navItems = null; + current = null; + timeout = null; + settings = null; + + }; + + /** + * Initialize the current instantiation + */ + var init = function () { + + // Merge user options into defaults + settings = extend(defaults, options || {}); + + // Setup variables based on the current DOM + publicAPIs.setup(); + + // Find the currently active content + publicAPIs.detect(); + + // Setup event listeners + window.addEventListener('scroll', scrollHandler, false); + if (settings.reflow) { + window.addEventListener('resize', resizeHandler, false); + } + + }; + + + // + // Initialize and return the public APIs + // + + init(); + return publicAPIs; + + }; + + + // + // Return the Constructor + // + + return Constructor; + +})); \ No newline at end of file diff --git a/assets/js/plugins/jquery.ba-throttle-debounce.js b/assets/js/plugins/jquery.ba-throttle-debounce.js new file mode 100644 index 00000000..fa30bdff --- /dev/null +++ b/assets/js/plugins/jquery.ba-throttle-debounce.js @@ -0,0 +1,252 @@ +/*! + * jQuery throttle / debounce - v1.1 - 3/7/2010 + * http://benalman.com/projects/jquery-throttle-debounce-plugin/ + * + * Copyright (c) 2010 "Cowboy" Ben Alman + * Dual licensed under the MIT and GPL licenses. + * http://benalman.com/about/license/ + */ + +// Script: jQuery throttle / debounce: Sometimes, less is more! +// +// *Version: 1.1, Last updated: 3/7/2010* +// +// Project Home - http://benalman.com/projects/jquery-throttle-debounce-plugin/ +// GitHub - http://github.com/cowboy/jquery-throttle-debounce/ +// Source - http://github.com/cowboy/jquery-throttle-debounce/raw/master/jquery.ba-throttle-debounce.js +// (Minified) - http://github.com/cowboy/jquery-throttle-debounce/raw/master/jquery.ba-throttle-debounce.min.js (0.7kb) +// +// About: License +// +// Copyright (c) 2010 "Cowboy" Ben Alman, +// Dual licensed under the MIT and GPL licenses. +// http://benalman.com/about/license/ +// +// About: Examples +// +// These working examples, complete with fully commented code, illustrate a few +// ways in which this plugin can be used. +// +// Throttle - http://benalman.com/code/projects/jquery-throttle-debounce/examples/throttle/ +// Debounce - http://benalman.com/code/projects/jquery-throttle-debounce/examples/debounce/ +// +// About: Support and Testing +// +// Information about what version or versions of jQuery this plugin has been +// tested with, what browsers it has been tested in, and where the unit tests +// reside (so you can test it yourself). +// +// jQuery Versions - none, 1.3.2, 1.4.2 +// Browsers Tested - Internet Explorer 6-8, Firefox 2-3.6, Safari 3-4, Chrome 4-5, Opera 9.6-10.1. +// Unit Tests - http://benalman.com/code/projects/jquery-throttle-debounce/unit/ +// +// About: Release History +// +// 1.1 - (3/7/2010) Fixed a bug in where trailing callbacks +// executed later than they should. Reworked a fair amount of internal +// logic as well. +// 1.0 - (3/6/2010) Initial release as a stand-alone project. Migrated over +// from jquery-misc repo v0.4 to jquery-throttle repo v1.0, added the +// no_trailing throttle parameter and debounce functionality. +// +// Topic: Note for non-jQuery users +// +// jQuery isn't actually required for this plugin, because nothing internal +// uses any jQuery methods or properties. jQuery is just used as a namespace +// under which these methods can exist. +// +// Since jQuery isn't actually required for this plugin, if jQuery doesn't exist +// when this plugin is loaded, the method described below will be created in +// the `Cowboy` namespace. Usage will be exactly the same, but instead of +// $.method() or jQuery.method(), you'll need to use Cowboy.method(). + +(function(window,undefined){ + '$:nomunge'; // Used by YUI compressor. + + // Since jQuery really isn't required for this plugin, use `jQuery` as the + // namespace only if it already exists, otherwise use the `Cowboy` namespace, + // creating it if necessary. + var $ = window.jQuery || window.Cowboy || ( window.Cowboy = {} ), + + // Internal method reference. + jq_throttle; + + // Method: jQuery.throttle + // + // Throttle execution of a function. Especially useful for rate limiting + // execution of handlers on events like resize and scroll. If you want to + // rate-limit execution of a function to a single time, see the + // method. + // + // In this visualization, | is a throttled-function call and X is the actual + // callback execution: + // + // > Throttled with `no_trailing` specified as false or unspecified: + // > ||||||||||||||||||||||||| (pause) ||||||||||||||||||||||||| + // > X X X X X X X X X X X X + // > + // > Throttled with `no_trailing` specified as true: + // > ||||||||||||||||||||||||| (pause) ||||||||||||||||||||||||| + // > X X X X X X X X X X + // + // Usage: + // + // > var throttled = jQuery.throttle( delay, [ no_trailing, ] callback ); + // > + // > jQuery('selector').bind( 'someevent', throttled ); + // > jQuery('selector').unbind( 'someevent', throttled ); + // + // This also works in jQuery 1.4+: + // + // > jQuery('selector').bind( 'someevent', jQuery.throttle( delay, [ no_trailing, ] callback ) ); + // > jQuery('selector').unbind( 'someevent', callback ); + // + // Arguments: + // + // delay - (Number) A zero-or-greater delay in milliseconds. For event + // callbacks, values around 100 or 250 (or even higher) are most useful. + // no_trailing - (Boolean) Optional, defaults to false. If no_trailing is + // true, callback will only execute every `delay` milliseconds while the + // throttled-function is being called. If no_trailing is false or + // unspecified, callback will be executed one final time after the last + // throttled-function call. (After the throttled-function has not been + // called for `delay` milliseconds, the internal counter is reset) + // callback - (Function) A function to be executed after delay milliseconds. + // The `this` context and all arguments are passed through, as-is, to + // `callback` when the throttled-function is executed. + // + // Returns: + // + // (Function) A new, throttled, function. + + $.throttle = jq_throttle = function( delay, no_trailing, callback, debounce_mode ) { + // After wrapper has stopped being called, this timeout ensures that + // `callback` is executed at the proper times in `throttle` and `end` + // debounce modes. + var timeout_id, + + // Keep track of the last time `callback` was executed. + last_exec = 0; + + // `no_trailing` defaults to falsy. + if ( typeof no_trailing !== 'boolean' ) { + debounce_mode = callback; + callback = no_trailing; + no_trailing = undefined; + } + + // The `wrapper` function encapsulates all of the throttling / debouncing + // functionality and when executed will limit the rate at which `callback` + // is executed. + function wrapper() { + var that = this, + elapsed = +new Date() - last_exec, + args = arguments; + + // Execute `callback` and update the `last_exec` timestamp. + function exec() { + last_exec = +new Date(); + callback.apply( that, args ); + }; + + // If `debounce_mode` is true (at_begin) this is used to clear the flag + // to allow future `callback` executions. + function clear() { + timeout_id = undefined; + }; + + if ( debounce_mode && !timeout_id ) { + // Since `wrapper` is being called for the first time and + // `debounce_mode` is true (at_begin), execute `callback`. + exec(); + } + + // Clear any existing timeout. + timeout_id && clearTimeout( timeout_id ); + + if ( debounce_mode === undefined && elapsed > delay ) { + // In throttle mode, if `delay` time has been exceeded, execute + // `callback`. + exec(); + + } else if ( no_trailing !== true ) { + // In trailing throttle mode, since `delay` time has not been + // exceeded, schedule `callback` to execute `delay` ms after most + // recent execution. + // + // If `debounce_mode` is true (at_begin), schedule `clear` to execute + // after `delay` ms. + // + // If `debounce_mode` is false (at end), schedule `callback` to + // execute after `delay` ms. + timeout_id = setTimeout( debounce_mode ? clear : exec, debounce_mode === undefined ? delay - elapsed : delay ); + } + }; + + // Set the guid of `wrapper` function to the same of original callback, so + // it can be removed in jQuery 1.4+ .unbind or .die by using the original + // callback as a reference. + if ( $.guid ) { + wrapper.guid = callback.guid = callback.guid || $.guid++; + } + + // Return the wrapper function. + return wrapper; + }; + + // Method: jQuery.debounce + // + // Debounce execution of a function. Debouncing, unlike throttling, + // guarantees that a function is only executed a single time, either at the + // very beginning of a series of calls, or at the very end. If you want to + // simply rate-limit execution of a function, see the + // method. + // + // In this visualization, | is a debounced-function call and X is the actual + // callback execution: + // + // > Debounced with `at_begin` specified as false or unspecified: + // > ||||||||||||||||||||||||| (pause) ||||||||||||||||||||||||| + // > X X + // > + // > Debounced with `at_begin` specified as true: + // > ||||||||||||||||||||||||| (pause) ||||||||||||||||||||||||| + // > X X + // + // Usage: + // + // > var debounced = jQuery.debounce( delay, [ at_begin, ] callback ); + // > + // > jQuery('selector').bind( 'someevent', debounced ); + // > jQuery('selector').unbind( 'someevent', debounced ); + // + // This also works in jQuery 1.4+: + // + // > jQuery('selector').bind( 'someevent', jQuery.debounce( delay, [ at_begin, ] callback ) ); + // > jQuery('selector').unbind( 'someevent', callback ); + // + // Arguments: + // + // delay - (Number) A zero-or-greater delay in milliseconds. For event + // callbacks, values around 100 or 250 (or even higher) are most useful. + // at_begin - (Boolean) Optional, defaults to false. If at_begin is false or + // unspecified, callback will only be executed `delay` milliseconds after + // the last debounced-function call. If at_begin is true, callback will be + // executed only at the first debounced-function call. (After the + // throttled-function has not been called for `delay` milliseconds, the + // internal counter is reset) + // callback - (Function) A function to be executed after delay milliseconds. + // The `this` context and all arguments are passed through, as-is, to + // `callback` when the debounced-function is executed. + // + // Returns: + // + // (Function) A new, debounced, function. + + $.debounce = function( delay, at_begin, callback ) { + return callback === undefined + ? jq_throttle( delay, at_begin, false ) + : jq_throttle( delay, callback, at_begin !== false ); + }; + +})(this); diff --git a/assets/js/plugins/jquery.fitvids.js b/assets/js/plugins/jquery.fitvids.js new file mode 100644 index 00000000..5c2f85c9 --- /dev/null +++ b/assets/js/plugins/jquery.fitvids.js @@ -0,0 +1,82 @@ +/*jshint browser:true */ +/*! +* FitVids 1.1 +* +* Copyright 2013, Chris Coyier - http://css-tricks.com + Dave Rupert - http://daverupert.com +* Credit to Thierry Koblentz - http://www.alistapart.com/articles/creating-intrinsic-ratios-for-video/ +* Released under the WTFPL license - http://sam.zoy.org/wtfpl/ +* +*/ + +;(function( $ ){ + + 'use strict'; + + $.fn.fitVids = function( options ) { + var settings = { + customSelector: null, + ignore: null + }; + + if(!document.getElementById('fit-vids-style')) { + // appendStyles: https://github.com/toddmotto/fluidvids/blob/master/dist/fluidvids.js + var head = document.head || document.getElementsByTagName('head')[0]; + var css = '.fluid-width-video-wrapper{width:100%;position:relative;padding:0;}.fluid-width-video-wrapper iframe,.fluid-width-video-wrapper object,.fluid-width-video-wrapper embed {position:absolute;top:0;left:0;width:100%;height:100%;}'; + var div = document.createElement("div"); + div.innerHTML = '

x

'; + head.appendChild(div.childNodes[1]); + } + + if ( options ) { + $.extend( settings, options ); + } + + return this.each(function(){ + var selectors = [ + 'iframe[src*="player.vimeo.com"]', + 'iframe[src*="youtube.com"]', + 'iframe[src*="youtube-nocookie.com"]', + 'iframe[src*="kickstarter.com"][src*="video.html"]', + 'object', + 'embed' + ]; + + if (settings.customSelector) { + selectors.push(settings.customSelector); + } + + var ignoreList = '.fitvidsignore'; + + if(settings.ignore) { + ignoreList = ignoreList + ', ' + settings.ignore; + } + + var $allVideos = $(this).find(selectors.join(',')); + $allVideos = $allVideos.not('object object'); // SwfObj conflict patch + $allVideos = $allVideos.not(ignoreList); // Disable FitVids on this video. + + $allVideos.each(function(count){ + var $this = $(this); + if($this.parents(ignoreList).length > 0) { + return; // Disable FitVids on this video. + } + if (this.tagName.toLowerCase() === 'embed' && $this.parent('object').length || $this.parent('.fluid-width-video-wrapper').length) { return; } + if ((!$this.css('height') && !$this.css('width')) && (isNaN($this.attr('height')) || isNaN($this.attr('width')))) + { + $this.attr('height', 9); + $this.attr('width', 16); + } + var height = ( this.tagName.toLowerCase() === 'object' || ($this.attr('height') && !isNaN(parseInt($this.attr('height'), 10))) ) ? parseInt($this.attr('height'), 10) : $this.height(), + width = !isNaN(parseInt($this.attr('width'), 10)) ? parseInt($this.attr('width'), 10) : $this.width(), + aspectRatio = height / width; + if(!$this.attr('id')){ + var videoID = 'fitvid' + count; + $this.attr('id', videoID); + } + $this.wrap('
').parent('.fluid-width-video-wrapper').css('padding-top', (aspectRatio * 100)+'%'); + $this.removeAttr('height').removeAttr('width'); + }); + }); + }; +// Works with either jQuery or Zepto +})( window.jQuery || window.Zepto ); \ No newline at end of file diff --git a/assets/js/plugins/jquery.greedy-navigation.js b/assets/js/plugins/jquery.greedy-navigation.js new file mode 100644 index 00000000..ce8a80ca --- /dev/null +++ b/assets/js/plugins/jquery.greedy-navigation.js @@ -0,0 +1,128 @@ +/* +GreedyNav.js - https://github.com/lukejacksonn/GreedyNav +Licensed under the MIT license - http://opensource.org/licenses/MIT +Copyright (c) 2015 Luke Jackson http://lukejacksonn.com +*/ + +$(function() { + + var $btn = $("nav.greedy-nav .greedy-nav__toggle"); + var $vlinks = $("nav.greedy-nav .visible-links"); + var $hlinks = $("nav.greedy-nav .hidden-links"); + var $nav = $("nav.greedy-nav"); + var $logo = $('nav.greedy-nav .site-logo'); + var $logoImg = $('nav.greedy-nav .site-logo img'); + var $title = $("nav.greedy-nav .site-title"); + var $search = $('nav.greedy-nav button.search__toggle'); + + var numOfItems, totalSpace, closingTime, breakWidths; + + // This function measures both hidden and visible links and sets the navbar breakpoints + // This is called the first time the script runs and everytime the "check()" function detects a change of window width that reached a different CSS width breakpoint, which affects the size of navbar Items + // Please note that "CSS width breakpoints" (which are only 4) !== "navbar breakpoints" (which are as many as the number of items on the navbar) + function measureLinks(){ + numOfItems = 0; + totalSpace = 0; + closingTime = 1000; + breakWidths = []; + + // Adds the width of a navItem in order to create breakpoints for the navbar + function addWidth(i, w) { + totalSpace += w; + numOfItems += 1; + breakWidths.push(totalSpace); + } + + // Measures the width of hidden links by making a temporary clone of them and positioning under visible links + function hiddenWidth(obj){ + var clone = obj.clone(); + clone.css("visibility","hidden"); + $vlinks.append(clone); + addWidth(0, clone.outerWidth()); + clone.remove(); + } + // Measure both visible and hidden links widths + $vlinks.children().outerWidth(addWidth); + $hlinks.children().each(function(){hiddenWidth($(this))}); + } + // Get initial state + measureLinks(); + + var winWidth = $( window ).width(); + // Set the last measured CSS width breakpoint: 0: <768px, 1: <1024px, 2: < 1280px, 3: >= 1280px. + var lastBreakpoint = winWidth < 768 ? 0 : winWidth < 1024 ? 1 : winWidth < 1280 ? 2 : 3; + + var availableSpace, numOfVisibleItems, requiredSpace, timer; + + function check() { + + winWidth = $( window ).width(); + // Set the current CSS width breakpoint: 0: <768px, 1: <1024px, 2: < 1280px, 3: >= 1280px. + var curBreakpoint = winWidth < 768 ? 0 : winWidth < 1024 ? 1 : winWidth < 1280 ? 2 : 3; + // If current breakpoint is different from last measured breakpoint, measureLinks again + if(curBreakpoint !== lastBreakpoint) measureLinks(); + // Set the last measured CSS width breakpoint with the current breakpoint + lastBreakpoint = curBreakpoint; + + // Get instant state + numOfVisibleItems = $vlinks.children().length; + // Decrease the width of visible elements from the nav innerWidth to find out the available space for navItems + availableSpace = /* nav */ $nav.innerWidth() + - /* logo */ ($logo.length !== 0 ? $logo.outerWidth(true) : 0) + - /* title */ $title.outerWidth(true) + - /* search */ ($search.length !== 0 ? $search.outerWidth(true) : 0) + - /* toggle */ (numOfVisibleItems !== breakWidths.length ? $btn.outerWidth(true) : 0); + requiredSpace = breakWidths[numOfVisibleItems - 1]; + + // There is not enought space + if (requiredSpace > availableSpace) { + $vlinks.children().last().prependTo($hlinks); + numOfVisibleItems -= 1; + check(); + // There is more than enough space. If only one element is hidden, add the toggle width to the available space + } else if (availableSpace + (numOfVisibleItems === breakWidths.length - 1?$btn.outerWidth(true):0) > breakWidths[numOfVisibleItems]) { + $hlinks.children().first().appendTo($vlinks); + numOfVisibleItems += 1; + check(); + } + // Update the button accordingly + $btn.attr("count", numOfItems - numOfVisibleItems); + if (numOfVisibleItems === numOfItems) { + $btn.addClass('hidden'); + } else $btn.removeClass('hidden'); + } + + // Window listeners + $(window).resize(function() { + check(); + }); + + $btn.on('click', function() { + $hlinks.toggleClass('hidden'); + $(this).toggleClass('close'); + clearTimeout(timer); + }); + + $hlinks.on('mouseleave', function() { + // Mouse has left, start the timer + timer = setTimeout(function() { + $hlinks.addClass('hidden'); + $('.greedy-nav__toggle').removeClass('close'); + }, closingTime); + }).on('mouseenter', function() { + // Mouse is back, cancel the timer + clearTimeout(timer); + }) + + // check if page has a logo + if($logoImg.length !== 0){ + // check if logo is not loaded + if(!($logoImg[0].complete || $logoImg[0].naturalWidth !== 0)){ + // if logo is not loaded wait for logo to load or fail to check + $logoImg.one("load error", check); + // if logo is already loaded just check + } else check(); + // if page does not have a logo just check + } else check(); + +}); diff --git a/assets/js/plugins/jquery.magnific-popup.js b/assets/js/plugins/jquery.magnific-popup.js new file mode 100644 index 00000000..7d1d1978 --- /dev/null +++ b/assets/js/plugins/jquery.magnific-popup.js @@ -0,0 +1,1860 @@ +/*! Magnific Popup - v1.1.0 - 2016-02-20 +* http://dimsemenov.com/plugins/magnific-popup/ +* Copyright (c) 2016 Dmitry Semenov; */ +;(function (factory) { + if (typeof define === 'function' && define.amd) { + // AMD. Register as an anonymous module. + define(['jquery'], factory); + } else if (typeof exports === 'object') { + // Node/CommonJS + factory(require('jquery')); + } else { + // Browser globals + factory(window.jQuery || window.Zepto); + } + }(function($) { + + /*>>core*/ + /** + * + * Magnific Popup Core JS file + * + */ + + + /** + * Private static constants + */ + var CLOSE_EVENT = 'Close', + BEFORE_CLOSE_EVENT = 'BeforeClose', + AFTER_CLOSE_EVENT = 'AfterClose', + BEFORE_APPEND_EVENT = 'BeforeAppend', + MARKUP_PARSE_EVENT = 'MarkupParse', + OPEN_EVENT = 'Open', + CHANGE_EVENT = 'Change', + NS = 'mfp', + EVENT_NS = '.' + NS, + READY_CLASS = 'mfp-ready', + REMOVING_CLASS = 'mfp-removing', + PREVENT_CLOSE_CLASS = 'mfp-prevent-close'; + + + /** + * Private vars + */ + /*jshint -W079 */ + var mfp, // As we have only one instance of MagnificPopup object, we define it locally to not to use 'this' + MagnificPopup = function(){}, + _isJQ = !!(window.jQuery), + _prevStatus, + _window = $(window), + _document, + _prevContentType, + _wrapClasses, + _currPopupType; + + + /** + * Private functions + */ + var _mfpOn = function(name, f) { + mfp.ev.on(NS + name + EVENT_NS, f); + }, + _getEl = function(className, appendTo, html, raw) { + var el = document.createElement('div'); + el.className = 'mfp-'+className; + if(html) { + el.innerHTML = html; + } + if(!raw) { + el = $(el); + if(appendTo) { + el.appendTo(appendTo); + } + } else if(appendTo) { + appendTo.appendChild(el); + } + return el; + }, + _mfpTrigger = function(e, data) { + mfp.ev.triggerHandler(NS + e, data); + + if(mfp.st.callbacks) { + // converts "mfpEventName" to "eventName" callback and triggers it if it's present + e = e.charAt(0).toLowerCase() + e.slice(1); + if(mfp.st.callbacks[e]) { + mfp.st.callbacks[e].apply(mfp, $.isArray(data) ? data : [data]); + } + } + }, + _getCloseBtn = function(type) { + if(type !== _currPopupType || !mfp.currTemplate.closeBtn) { + mfp.currTemplate.closeBtn = $( mfp.st.closeMarkup.replace('%title%', mfp.st.tClose ) ); + _currPopupType = type; + } + return mfp.currTemplate.closeBtn; + }, + // Initialize Magnific Popup only when called at least once + _checkInstance = function() { + if(!$.magnificPopup.instance) { + /*jshint -W020 */ + mfp = new MagnificPopup(); + mfp.init(); + $.magnificPopup.instance = mfp; + } + }, + // CSS transition detection, http://stackoverflow.com/questions/7264899/detect-css-transitions-using-javascript-and-without-modernizr + supportsTransitions = function() { + var s = document.createElement('p').style, // 's' for style. better to create an element if body yet to exist + v = ['ms','O','Moz','Webkit']; // 'v' for vendor + + if( s['transition'] !== undefined ) { + return true; + } + + while( v.length ) { + if( v.pop() + 'Transition' in s ) { + return true; + } + } + + return false; + }; + + + + /** + * Public functions + */ + MagnificPopup.prototype = { + + constructor: MagnificPopup, + + /** + * Initializes Magnific Popup plugin. + * This function is triggered only once when $.fn.magnificPopup or $.magnificPopup is executed + */ + init: function() { + var appVersion = navigator.appVersion; + mfp.isLowIE = mfp.isIE8 = document.all && !document.addEventListener; + mfp.isAndroid = (/android/gi).test(appVersion); + mfp.isIOS = (/iphone|ipad|ipod/gi).test(appVersion); + mfp.supportsTransition = supportsTransitions(); + + // We disable fixed positioned lightbox on devices that don't handle it nicely. + // If you know a better way of detecting this - let me know. + mfp.probablyMobile = (mfp.isAndroid || mfp.isIOS || /(Opera Mini)|Kindle|webOS|BlackBerry|(Opera Mobi)|(Windows Phone)|IEMobile/i.test(navigator.userAgent) ); + _document = $(document); + + mfp.popupsCache = {}; + }, + + /** + * Opens popup + * @param data [description] + */ + open: function(data) { + + var i; + + if(data.isObj === false) { + // convert jQuery collection to array to avoid conflicts later + mfp.items = data.items.toArray(); + + mfp.index = 0; + var items = data.items, + item; + for(i = 0; i < items.length; i++) { + item = items[i]; + if(item.parsed) { + item = item.el[0]; + } + if(item === data.el[0]) { + mfp.index = i; + break; + } + } + } else { + mfp.items = $.isArray(data.items) ? data.items : [data.items]; + mfp.index = data.index || 0; + } + + // if popup is already opened - we just update the content + if(mfp.isOpen) { + mfp.updateItemHTML(); + return; + } + + mfp.types = []; + _wrapClasses = ''; + if(data.mainEl && data.mainEl.length) { + mfp.ev = data.mainEl.eq(0); + } else { + mfp.ev = _document; + } + + if(data.key) { + if(!mfp.popupsCache[data.key]) { + mfp.popupsCache[data.key] = {}; + } + mfp.currTemplate = mfp.popupsCache[data.key]; + } else { + mfp.currTemplate = {}; + } + + + + mfp.st = $.extend(true, {}, $.magnificPopup.defaults, data ); + mfp.fixedContentPos = mfp.st.fixedContentPos === 'auto' ? !mfp.probablyMobile : mfp.st.fixedContentPos; + + if(mfp.st.modal) { + mfp.st.closeOnContentClick = false; + mfp.st.closeOnBgClick = false; + mfp.st.showCloseBtn = false; + mfp.st.enableEscapeKey = false; + } + + + // Building markup + // main containers are created only once + if(!mfp.bgOverlay) { + + // Dark overlay + mfp.bgOverlay = _getEl('bg').on('click'+EVENT_NS, function() { + mfp.close(); + }); + + mfp.wrap = _getEl('wrap').attr('tabindex', -1).on('click'+EVENT_NS, function(e) { + if(mfp._checkIfClose(e.target)) { + mfp.close(); + } + }); + + mfp.container = _getEl('container', mfp.wrap); + } + + mfp.contentContainer = _getEl('content'); + if(mfp.st.preloader) { + mfp.preloader = _getEl('preloader', mfp.container, mfp.st.tLoading); + } + + + // Initializing modules + var modules = $.magnificPopup.modules; + for(i = 0; i < modules.length; i++) { + var n = modules[i]; + n = n.charAt(0).toUpperCase() + n.slice(1); + mfp['init'+n].call(mfp); + } + _mfpTrigger('BeforeOpen'); + + + if(mfp.st.showCloseBtn) { + // Close button + if(!mfp.st.closeBtnInside) { + mfp.wrap.append( _getCloseBtn() ); + } else { + _mfpOn(MARKUP_PARSE_EVENT, function(e, template, values, item) { + values.close_replaceWith = _getCloseBtn(item.type); + }); + _wrapClasses += ' mfp-close-btn-in'; + } + } + + if(mfp.st.alignTop) { + _wrapClasses += ' mfp-align-top'; + } + + + + if(mfp.fixedContentPos) { + mfp.wrap.css({ + overflow: mfp.st.overflowY, + overflowX: 'hidden', + overflowY: mfp.st.overflowY + }); + } else { + mfp.wrap.css({ + top: _window.scrollTop(), + position: 'absolute' + }); + } + if( mfp.st.fixedBgPos === false || (mfp.st.fixedBgPos === 'auto' && !mfp.fixedContentPos) ) { + mfp.bgOverlay.css({ + height: _document.height(), + position: 'absolute' + }); + } + + + + if(mfp.st.enableEscapeKey) { + // Close on ESC key + _document.on('keyup' + EVENT_NS, function(e) { + if(e.keyCode === 27) { + mfp.close(); + } + }); + } + + _window.on('resize' + EVENT_NS, function() { + mfp.updateSize(); + }); + + + if(!mfp.st.closeOnContentClick) { + _wrapClasses += ' mfp-auto-cursor'; + } + + if(_wrapClasses) + mfp.wrap.addClass(_wrapClasses); + + + // this triggers recalculation of layout, so we get it once to not to trigger twice + var windowHeight = mfp.wH = _window.height(); + + + var windowStyles = {}; + + if( mfp.fixedContentPos ) { + if(mfp._hasScrollBar(windowHeight)){ + var s = mfp._getScrollbarSize(); + if(s) { + windowStyles.marginRight = s; + } + } + } + + if(mfp.fixedContentPos) { + if(!mfp.isIE7) { + windowStyles.overflow = 'hidden'; + } else { + // ie7 double-scroll bug + $('body, html').css('overflow', 'hidden'); + } + } + + + + var classesToadd = mfp.st.mainClass; + if(mfp.isIE7) { + classesToadd += ' mfp-ie7'; + } + if(classesToadd) { + mfp._addClassToMFP( classesToadd ); + } + + // add content + mfp.updateItemHTML(); + + _mfpTrigger('BuildControls'); + + // remove scrollbar, add margin e.t.c + $('html').css(windowStyles); + + // add everything to DOM + mfp.bgOverlay.add(mfp.wrap).prependTo( mfp.st.prependTo || $(document.body) ); + + // Save last focused element + mfp._lastFocusedEl = document.activeElement; + + // Wait for next cycle to allow CSS transition + setTimeout(function() { + + if(mfp.content) { + mfp._addClassToMFP(READY_CLASS); + mfp._setFocus(); + } else { + // if content is not defined (not loaded e.t.c) we add class only for BG + mfp.bgOverlay.addClass(READY_CLASS); + } + + // Trap the focus in popup + _document.on('focusin' + EVENT_NS, mfp._onFocusIn); + + }, 16); + + mfp.isOpen = true; + mfp.updateSize(windowHeight); + _mfpTrigger(OPEN_EVENT); + + return data; + }, + + /** + * Closes the popup + */ + close: function() { + if(!mfp.isOpen) return; + _mfpTrigger(BEFORE_CLOSE_EVENT); + + mfp.isOpen = false; + // for CSS3 animation + if(mfp.st.removalDelay && !mfp.isLowIE && mfp.supportsTransition ) { + mfp._addClassToMFP(REMOVING_CLASS); + setTimeout(function() { + mfp._close(); + }, mfp.st.removalDelay); + } else { + mfp._close(); + } + }, + + /** + * Helper for close() function + */ + _close: function() { + _mfpTrigger(CLOSE_EVENT); + + var classesToRemove = REMOVING_CLASS + ' ' + READY_CLASS + ' '; + + mfp.bgOverlay.detach(); + mfp.wrap.detach(); + mfp.container.empty(); + + if(mfp.st.mainClass) { + classesToRemove += mfp.st.mainClass + ' '; + } + + mfp._removeClassFromMFP(classesToRemove); + + if(mfp.fixedContentPos) { + var windowStyles = {marginRight: ''}; + if(mfp.isIE7) { + $('body, html').css('overflow', ''); + } else { + windowStyles.overflow = ''; + } + $('html').css(windowStyles); + } + + _document.off('keyup' + EVENT_NS + ' focusin' + EVENT_NS); + mfp.ev.off(EVENT_NS); + + // clean up DOM elements that aren't removed + mfp.wrap.attr('class', 'mfp-wrap').removeAttr('style'); + mfp.bgOverlay.attr('class', 'mfp-bg'); + mfp.container.attr('class', 'mfp-container'); + + // remove close button from target element + if(mfp.st.showCloseBtn && + (!mfp.st.closeBtnInside || mfp.currTemplate[mfp.currItem.type] === true)) { + if(mfp.currTemplate.closeBtn) + mfp.currTemplate.closeBtn.detach(); + } + + + if(mfp.st.autoFocusLast && mfp._lastFocusedEl) { + $(mfp._lastFocusedEl).focus(); // put tab focus back + } + mfp.currItem = null; + mfp.content = null; + mfp.currTemplate = null; + mfp.prevHeight = 0; + + _mfpTrigger(AFTER_CLOSE_EVENT); + }, + + updateSize: function(winHeight) { + + if(mfp.isIOS) { + // fixes iOS nav bars https://github.com/dimsemenov/Magnific-Popup/issues/2 + var zoomLevel = document.documentElement.clientWidth / window.innerWidth; + var height = window.innerHeight * zoomLevel; + mfp.wrap.css('height', height); + mfp.wH = height; + } else { + mfp.wH = winHeight || _window.height(); + } + // Fixes #84: popup incorrectly positioned with position:relative on body + if(!mfp.fixedContentPos) { + mfp.wrap.css('height', mfp.wH); + } + + _mfpTrigger('Resize'); + + }, + + /** + * Set content of popup based on current index + */ + updateItemHTML: function() { + var item = mfp.items[mfp.index]; + + // Detach and perform modifications + mfp.contentContainer.detach(); + + if(mfp.content) + mfp.content.detach(); + + if(!item.parsed) { + item = mfp.parseEl( mfp.index ); + } + + var type = item.type; + + _mfpTrigger('BeforeChange', [mfp.currItem ? mfp.currItem.type : '', type]); + // BeforeChange event works like so: + // _mfpOn('BeforeChange', function(e, prevType, newType) { }); + + mfp.currItem = item; + + if(!mfp.currTemplate[type]) { + var markup = mfp.st[type] ? mfp.st[type].markup : false; + + // allows to modify markup + _mfpTrigger('FirstMarkupParse', markup); + + if(markup) { + mfp.currTemplate[type] = $(markup); + } else { + // if there is no markup found we just define that template is parsed + mfp.currTemplate[type] = true; + } + } + + if(_prevContentType && _prevContentType !== item.type) { + mfp.container.removeClass('mfp-'+_prevContentType+'-holder'); + } + + var newContent = mfp['get' + type.charAt(0).toUpperCase() + type.slice(1)](item, mfp.currTemplate[type]); + mfp.appendContent(newContent, type); + + item.preloaded = true; + + _mfpTrigger(CHANGE_EVENT, item); + _prevContentType = item.type; + + // Append container back after its content changed + mfp.container.prepend(mfp.contentContainer); + + _mfpTrigger('AfterChange'); + }, + + + /** + * Set HTML content of popup + */ + appendContent: function(newContent, type) { + mfp.content = newContent; + + if(newContent) { + if(mfp.st.showCloseBtn && mfp.st.closeBtnInside && + mfp.currTemplate[type] === true) { + // if there is no markup, we just append close button element inside + if(!mfp.content.find('.mfp-close').length) { + mfp.content.append(_getCloseBtn()); + } + } else { + mfp.content = newContent; + } + } else { + mfp.content = ''; + } + + _mfpTrigger(BEFORE_APPEND_EVENT); + mfp.container.addClass('mfp-'+type+'-holder'); + + mfp.contentContainer.append(mfp.content); + }, + + + /** + * Creates Magnific Popup data object based on given data + * @param {int} index Index of item to parse + */ + parseEl: function(index) { + var item = mfp.items[index], + type; + + if(item.tagName) { + item = { el: $(item) }; + } else { + type = item.type; + item = { data: item, src: item.src }; + } + + if(item.el) { + var types = mfp.types; + + // check for 'mfp-TYPE' class + for(var i = 0; i < types.length; i++) { + if( item.el.hasClass('mfp-'+types[i]) ) { + type = types[i]; + break; + } + } + + item.src = item.el.attr('data-mfp-src'); + if(!item.src) { + item.src = item.el.attr('href'); + } + } + + item.type = type || mfp.st.type || 'inline'; + item.index = index; + item.parsed = true; + mfp.items[index] = item; + _mfpTrigger('ElementParse', item); + + return mfp.items[index]; + }, + + + /** + * Initializes single popup or a group of popups + */ + addGroup: function(el, options) { + var eHandler = function(e) { + e.mfpEl = this; + mfp._openClick(e, el, options); + }; + + if(!options) { + options = {}; + } + + var eName = 'click.magnificPopup'; + options.mainEl = el; + + if(options.items) { + options.isObj = true; + el.off(eName).on(eName, eHandler); + } else { + options.isObj = false; + if(options.delegate) { + el.off(eName).on(eName, options.delegate , eHandler); + } else { + options.items = el; + el.off(eName).on(eName, eHandler); + } + } + }, + _openClick: function(e, el, options) { + var midClick = options.midClick !== undefined ? options.midClick : $.magnificPopup.defaults.midClick; + + + if(!midClick && ( e.which === 2 || e.ctrlKey || e.metaKey || e.altKey || e.shiftKey ) ) { + return; + } + + var disableOn = options.disableOn !== undefined ? options.disableOn : $.magnificPopup.defaults.disableOn; + + if(disableOn) { + if($.isFunction(disableOn)) { + if( !disableOn.call(mfp) ) { + return true; + } + } else { // else it's number + if( _window.width() < disableOn ) { + return true; + } + } + } + + if(e.type) { + e.preventDefault(); + + // This will prevent popup from closing if element is inside and popup is already opened + if(mfp.isOpen) { + e.stopPropagation(); + } + } + + options.el = $(e.mfpEl); + if(options.delegate) { + options.items = el.find(options.delegate); + } + mfp.open(options); + }, + + + /** + * Updates text on preloader + */ + updateStatus: function(status, text) { + + if(mfp.preloader) { + if(_prevStatus !== status) { + mfp.container.removeClass('mfp-s-'+_prevStatus); + } + + if(!text && status === 'loading') { + text = mfp.st.tLoading; + } + + var data = { + status: status, + text: text + }; + // allows to modify status + _mfpTrigger('UpdateStatus', data); + + status = data.status; + text = data.text; + + mfp.preloader.html(text); + + mfp.preloader.find('a').on('click', function(e) { + e.stopImmediatePropagation(); + }); + + mfp.container.addClass('mfp-s-'+status); + _prevStatus = status; + } + }, + + + /* + "Private" helpers that aren't private at all + */ + // Check to close popup or not + // "target" is an element that was clicked + _checkIfClose: function(target) { + + if($(target).hasClass(PREVENT_CLOSE_CLASS)) { + return; + } + + var closeOnContent = mfp.st.closeOnContentClick; + var closeOnBg = mfp.st.closeOnBgClick; + + if(closeOnContent && closeOnBg) { + return true; + } else { + + // We close the popup if click is on close button or on preloader. Or if there is no content. + if(!mfp.content || $(target).hasClass('mfp-close') || (mfp.preloader && target === mfp.preloader[0]) ) { + return true; + } + + // if click is outside the content + if( (target !== mfp.content[0] && !$.contains(mfp.content[0], target)) ) { + if(closeOnBg) { + // last check, if the clicked element is in DOM, (in case it's removed onclick) + if( $.contains(document, target) ) { + return true; + } + } + } else if(closeOnContent) { + return true; + } + + } + return false; + }, + _addClassToMFP: function(cName) { + mfp.bgOverlay.addClass(cName); + mfp.wrap.addClass(cName); + }, + _removeClassFromMFP: function(cName) { + this.bgOverlay.removeClass(cName); + mfp.wrap.removeClass(cName); + }, + _hasScrollBar: function(winHeight) { + return ( (mfp.isIE7 ? _document.height() : document.body.scrollHeight) > (winHeight || _window.height()) ); + }, + _setFocus: function() { + (mfp.st.focus ? mfp.content.find(mfp.st.focus).eq(0) : mfp.wrap).focus(); + }, + _onFocusIn: function(e) { + if( e.target !== mfp.wrap[0] && !$.contains(mfp.wrap[0], e.target) ) { + mfp._setFocus(); + return false; + } + }, + _parseMarkup: function(template, values, item) { + var arr; + if(item.data) { + values = $.extend(item.data, values); + } + _mfpTrigger(MARKUP_PARSE_EVENT, [template, values, item] ); + + $.each(values, function(key, value) { + if(value === undefined || value === false) { + return true; + } + arr = key.split('_'); + if(arr.length > 1) { + var el = template.find(EVENT_NS + '-'+arr[0]); + + if(el.length > 0) { + var attr = arr[1]; + if(attr === 'replaceWith') { + if(el[0] !== value[0]) { + el.replaceWith(value); + } + } else if(attr === 'img') { + if(el.is('img')) { + el.attr('src', value); + } else { + el.replaceWith( $('').attr('src', value).attr('class', el.attr('class')) ); + } + } else { + el.attr(arr[1], value); + } + } + + } else { + template.find(EVENT_NS + '-'+key).html(value); + } + }); + }, + + _getScrollbarSize: function() { + // thx David + if(mfp.scrollbarSize === undefined) { + var scrollDiv = document.createElement("div"); + scrollDiv.style.cssText = 'width: 99px; height: 99px; overflow: scroll; position: absolute; top: -9999px;'; + document.body.appendChild(scrollDiv); + mfp.scrollbarSize = scrollDiv.offsetWidth - scrollDiv.clientWidth; + document.body.removeChild(scrollDiv); + } + return mfp.scrollbarSize; + } + + }; /* MagnificPopup core prototype end */ + + + + + /** + * Public static functions + */ + $.magnificPopup = { + instance: null, + proto: MagnificPopup.prototype, + modules: [], + + open: function(options, index) { + _checkInstance(); + + if(!options) { + options = {}; + } else { + options = $.extend(true, {}, options); + } + + options.isObj = true; + options.index = index || 0; + return this.instance.open(options); + }, + + close: function() { + return $.magnificPopup.instance && $.magnificPopup.instance.close(); + }, + + registerModule: function(name, module) { + if(module.options) { + $.magnificPopup.defaults[name] = module.options; + } + $.extend(this.proto, module.proto); + this.modules.push(name); + }, + + defaults: { + + // Info about options is in docs: + // http://dimsemenov.com/plugins/magnific-popup/documentation.html#options + + disableOn: 0, + + key: null, + + midClick: false, + + mainClass: '', + + preloader: true, + + focus: '', // CSS selector of input to focus after popup is opened + + closeOnContentClick: false, + + closeOnBgClick: true, + + closeBtnInside: true, + + showCloseBtn: true, + + enableEscapeKey: true, + + modal: false, + + alignTop: false, + + removalDelay: 0, + + prependTo: null, + + fixedContentPos: 'auto', + + fixedBgPos: 'auto', + + overflowY: 'auto', + + closeMarkup: '', + + tClose: 'Close (Esc)', + + tLoading: 'Loading...', + + autoFocusLast: true + + } + }; + + + + $.fn.magnificPopup = function(options) { + _checkInstance(); + + var jqEl = $(this); + + // We call some API method of first param is a string + if (typeof options === "string" ) { + + if(options === 'open') { + var items, + itemOpts = _isJQ ? jqEl.data('magnificPopup') : jqEl[0].magnificPopup, + index = parseInt(arguments[1], 10) || 0; + + if(itemOpts.items) { + items = itemOpts.items[index]; + } else { + items = jqEl; + if(itemOpts.delegate) { + items = items.find(itemOpts.delegate); + } + items = items.eq( index ); + } + mfp._openClick({mfpEl:items}, jqEl, itemOpts); + } else { + if(mfp.isOpen) + mfp[options].apply(mfp, Array.prototype.slice.call(arguments, 1)); + } + + } else { + // clone options obj + options = $.extend(true, {}, options); + + /* + * As Zepto doesn't support .data() method for objects + * and it works only in normal browsers + * we assign "options" object directly to the DOM element. FTW! + */ + if(_isJQ) { + jqEl.data('magnificPopup', options); + } else { + jqEl[0].magnificPopup = options; + } + + mfp.addGroup(jqEl, options); + + } + return jqEl; + }; + + /*>>core*/ + + /*>>inline*/ + + var INLINE_NS = 'inline', + _hiddenClass, + _inlinePlaceholder, + _lastInlineElement, + _putInlineElementsBack = function() { + if(_lastInlineElement) { + _inlinePlaceholder.after( _lastInlineElement.addClass(_hiddenClass) ).detach(); + _lastInlineElement = null; + } + }; + + $.magnificPopup.registerModule(INLINE_NS, { + options: { + hiddenClass: 'hide', // will be appended with `mfp-` prefix + markup: '', + tNotFound: 'Content not found' + }, + proto: { + + initInline: function() { + mfp.types.push(INLINE_NS); + + _mfpOn(CLOSE_EVENT+'.'+INLINE_NS, function() { + _putInlineElementsBack(); + }); + }, + + getInline: function(item, template) { + + _putInlineElementsBack(); + + if(item.src) { + var inlineSt = mfp.st.inline, + el = $(item.src); + + if(el.length) { + + // If target element has parent - we replace it with placeholder and put it back after popup is closed + var parent = el[0].parentNode; + if(parent && parent.tagName) { + if(!_inlinePlaceholder) { + _hiddenClass = inlineSt.hiddenClass; + _inlinePlaceholder = _getEl(_hiddenClass); + _hiddenClass = 'mfp-'+_hiddenClass; + } + // replace target inline element with placeholder + _lastInlineElement = el.after(_inlinePlaceholder).detach().removeClass(_hiddenClass); + } + + mfp.updateStatus('ready'); + } else { + mfp.updateStatus('error', inlineSt.tNotFound); + el = $('
'); + } + + item.inlineElement = el; + return el; + } + + mfp.updateStatus('ready'); + mfp._parseMarkup(template, {}, item); + return template; + } + } + }); + + /*>>inline*/ + + /*>>ajax*/ + var AJAX_NS = 'ajax', + _ajaxCur, + _removeAjaxCursor = function() { + if(_ajaxCur) { + $(document.body).removeClass(_ajaxCur); + } + }, + _destroyAjaxRequest = function() { + _removeAjaxCursor(); + if(mfp.req) { + mfp.req.abort(); + } + }; + + $.magnificPopup.registerModule(AJAX_NS, { + + options: { + settings: null, + cursor: 'mfp-ajax-cur', + tError: 'The content could not be loaded.' + }, + + proto: { + initAjax: function() { + mfp.types.push(AJAX_NS); + _ajaxCur = mfp.st.ajax.cursor; + + _mfpOn(CLOSE_EVENT+'.'+AJAX_NS, _destroyAjaxRequest); + _mfpOn('BeforeChange.' + AJAX_NS, _destroyAjaxRequest); + }, + getAjax: function(item) { + + if(_ajaxCur) { + $(document.body).addClass(_ajaxCur); + } + + mfp.updateStatus('loading'); + + var opts = $.extend({ + url: item.src, + success: function(data, textStatus, jqXHR) { + var temp = { + data:data, + xhr:jqXHR + }; + + _mfpTrigger('ParseAjax', temp); + + mfp.appendContent( $(temp.data), AJAX_NS ); + + item.finished = true; + + _removeAjaxCursor(); + + mfp._setFocus(); + + setTimeout(function() { + mfp.wrap.addClass(READY_CLASS); + }, 16); + + mfp.updateStatus('ready'); + + _mfpTrigger('AjaxContentAdded'); + }, + error: function() { + _removeAjaxCursor(); + item.finished = item.loadError = true; + mfp.updateStatus('error', mfp.st.ajax.tError.replace('%url%', item.src)); + } + }, mfp.st.ajax.settings); + + mfp.req = $.ajax(opts); + + return ''; + } + } + }); + + /*>>ajax*/ + + /*>>image*/ + var _imgInterval, + _getTitle = function(item) { + if(item.data && item.data.title !== undefined) + return item.data.title; + + var src = mfp.st.image.titleSrc; + + if(src) { + if($.isFunction(src)) { + return src.call(mfp, item); + } else if(item.el) { + return item.el.attr(src) || ''; + } + } + return ''; + }; + + $.magnificPopup.registerModule('image', { + + options: { + markup: '
'+ + '
'+ + '
'+ + '
'+ + '
'+ + '
'+ + '
'+ + '
'+ + '
'+ + '
'+ + '
'+ + '
', + cursor: 'mfp-zoom-out-cur', + titleSrc: 'title', + verticalFit: true, + tError: 'The image could not be loaded.' + }, + + proto: { + initImage: function() { + var imgSt = mfp.st.image, + ns = '.image'; + + mfp.types.push('image'); + + _mfpOn(OPEN_EVENT+ns, function() { + if(mfp.currItem.type === 'image' && imgSt.cursor) { + $(document.body).addClass(imgSt.cursor); + } + }); + + _mfpOn(CLOSE_EVENT+ns, function() { + if(imgSt.cursor) { + $(document.body).removeClass(imgSt.cursor); + } + _window.off('resize' + EVENT_NS); + }); + + _mfpOn('Resize'+ns, mfp.resizeImage); + if(mfp.isLowIE) { + _mfpOn('AfterChange', mfp.resizeImage); + } + }, + resizeImage: function() { + var item = mfp.currItem; + if(!item || !item.img) return; + + if(mfp.st.image.verticalFit) { + var decr = 0; + // fix box-sizing in ie7/8 + if(mfp.isLowIE) { + decr = parseInt(item.img.css('padding-top'), 10) + parseInt(item.img.css('padding-bottom'),10); + } + item.img.css('max-height', mfp.wH-decr); + } + }, + _onImageHasSize: function(item) { + if(item.img) { + + item.hasSize = true; + + if(_imgInterval) { + clearInterval(_imgInterval); + } + + item.isCheckingImgSize = false; + + _mfpTrigger('ImageHasSize', item); + + if(item.imgHidden) { + if(mfp.content) + mfp.content.removeClass('mfp-loading'); + + item.imgHidden = false; + } + + } + }, + + /** + * Function that loops until the image has size to display elements that rely on it asap + */ + findImageSize: function(item) { + + var counter = 0, + img = item.img[0], + mfpSetInterval = function(delay) { + + if(_imgInterval) { + clearInterval(_imgInterval); + } + // decelerating interval that checks for size of an image + _imgInterval = setInterval(function() { + if(img.naturalWidth > 0) { + mfp._onImageHasSize(item); + return; + } + + if(counter > 200) { + clearInterval(_imgInterval); + } + + counter++; + if(counter === 3) { + mfpSetInterval(10); + } else if(counter === 40) { + mfpSetInterval(50); + } else if(counter === 100) { + mfpSetInterval(500); + } + }, delay); + }; + + mfpSetInterval(1); + }, + + getImage: function(item, template) { + + var guard = 0, + + // image load complete handler + onLoadComplete = function() { + if(item) { + if (item.img[0].complete) { + item.img.off('.mfploader'); + + if(item === mfp.currItem){ + mfp._onImageHasSize(item); + + mfp.updateStatus('ready'); + } + + item.hasSize = true; + item.loaded = true; + + _mfpTrigger('ImageLoadComplete'); + + } + else { + // if image complete check fails 200 times (20 sec), we assume that there was an error. + guard++; + if(guard < 200) { + setTimeout(onLoadComplete,100); + } else { + onLoadError(); + } + } + } + }, + + // image error handler + onLoadError = function() { + if(item) { + item.img.off('.mfploader'); + if(item === mfp.currItem){ + mfp._onImageHasSize(item); + mfp.updateStatus('error', imgSt.tError.replace('%url%', item.src) ); + } + + item.hasSize = true; + item.loaded = true; + item.loadError = true; + } + }, + imgSt = mfp.st.image; + + + var el = template.find('.mfp-img'); + if(el.length) { + var img = document.createElement('img'); + img.className = 'mfp-img'; + if(item.el && item.el.find('img').length) { + img.alt = item.el.find('img').attr('alt'); + } + item.img = $(img).on('load.mfploader', onLoadComplete).on('error.mfploader', onLoadError); + img.src = item.src; + + // without clone() "error" event is not firing when IMG is replaced by new IMG + // TODO: find a way to avoid such cloning + if(el.is('img')) { + item.img = item.img.clone(); + } + + img = item.img[0]; + if(img.naturalWidth > 0) { + item.hasSize = true; + } else if(!img.width) { + item.hasSize = false; + } + } + + mfp._parseMarkup(template, { + title: _getTitle(item), + img_replaceWith: item.img + }, item); + + mfp.resizeImage(); + + if(item.hasSize) { + if(_imgInterval) clearInterval(_imgInterval); + + if(item.loadError) { + template.addClass('mfp-loading'); + mfp.updateStatus('error', imgSt.tError.replace('%url%', item.src) ); + } else { + template.removeClass('mfp-loading'); + mfp.updateStatus('ready'); + } + return template; + } + + mfp.updateStatus('loading'); + item.loading = true; + + if(!item.hasSize) { + item.imgHidden = true; + template.addClass('mfp-loading'); + mfp.findImageSize(item); + } + + return template; + } + } + }); + + /*>>image*/ + + /*>>zoom*/ + var hasMozTransform, + getHasMozTransform = function() { + if(hasMozTransform === undefined) { + hasMozTransform = document.createElement('p').style.MozTransform !== undefined; + } + return hasMozTransform; + }; + + $.magnificPopup.registerModule('zoom', { + + options: { + enabled: false, + easing: 'ease-in-out', + duration: 300, + opener: function(element) { + return element.is('img') ? element : element.find('img'); + } + }, + + proto: { + + initZoom: function() { + var zoomSt = mfp.st.zoom, + ns = '.zoom', + image; + + if(!zoomSt.enabled || !mfp.supportsTransition) { + return; + } + + var duration = zoomSt.duration, + getElToAnimate = function(image) { + var newImg = image.clone().removeAttr('style').removeAttr('class').addClass('mfp-animated-image'), + transition = 'all '+(zoomSt.duration/1000)+'s ' + zoomSt.easing, + cssObj = { + position: 'fixed', + zIndex: 9999, + left: 0, + top: 0, + '-webkit-backface-visibility': 'hidden' + }, + t = 'transition'; + + cssObj['-webkit-'+t] = cssObj['-moz-'+t] = cssObj['-o-'+t] = cssObj[t] = transition; + + newImg.css(cssObj); + return newImg; + }, + showMainContent = function() { + mfp.content.css('visibility', 'visible'); + }, + openTimeout, + animatedImg; + + _mfpOn('BuildControls'+ns, function() { + if(mfp._allowZoom()) { + + clearTimeout(openTimeout); + mfp.content.css('visibility', 'hidden'); + + // Basically, all code below does is clones existing image, puts in on top of the current one and animated it + + image = mfp._getItemToZoom(); + + if(!image) { + showMainContent(); + return; + } + + animatedImg = getElToAnimate(image); + + animatedImg.css( mfp._getOffset() ); + + mfp.wrap.append(animatedImg); + + openTimeout = setTimeout(function() { + animatedImg.css( mfp._getOffset( true ) ); + openTimeout = setTimeout(function() { + + showMainContent(); + + setTimeout(function() { + animatedImg.remove(); + image = animatedImg = null; + _mfpTrigger('ZoomAnimationEnded'); + }, 16); // avoid blink when switching images + + }, duration); // this timeout equals animation duration + + }, 16); // by adding this timeout we avoid short glitch at the beginning of animation + + + // Lots of timeouts... + } + }); + _mfpOn(BEFORE_CLOSE_EVENT+ns, function() { + if(mfp._allowZoom()) { + + clearTimeout(openTimeout); + + mfp.st.removalDelay = duration; + + if(!image) { + image = mfp._getItemToZoom(); + if(!image) { + return; + } + animatedImg = getElToAnimate(image); + } + + animatedImg.css( mfp._getOffset(true) ); + mfp.wrap.append(animatedImg); + mfp.content.css('visibility', 'hidden'); + + setTimeout(function() { + animatedImg.css( mfp._getOffset() ); + }, 16); + } + + }); + + _mfpOn(CLOSE_EVENT+ns, function() { + if(mfp._allowZoom()) { + showMainContent(); + if(animatedImg) { + animatedImg.remove(); + } + image = null; + } + }); + }, + + _allowZoom: function() { + return mfp.currItem.type === 'image'; + }, + + _getItemToZoom: function() { + if(mfp.currItem.hasSize) { + return mfp.currItem.img; + } else { + return false; + } + }, + + // Get element postion relative to viewport + _getOffset: function(isLarge) { + var el; + if(isLarge) { + el = mfp.currItem.img; + } else { + el = mfp.st.zoom.opener(mfp.currItem.el || mfp.currItem); + } + + var offset = el.offset(); + var paddingTop = parseInt(el.css('padding-top'),10); + var paddingBottom = parseInt(el.css('padding-bottom'),10); + offset.top -= ( $(window).scrollTop() - paddingTop ); + + + /* + + Animating left + top + width/height looks glitchy in Firefox, but perfect in Chrome. And vice-versa. + + */ + var obj = { + width: el.width(), + // fix Zepto height+padding issue + height: (_isJQ ? el.innerHeight() : el[0].offsetHeight) - paddingBottom - paddingTop + }; + + // I hate to do this, but there is no another option + if( getHasMozTransform() ) { + obj['-moz-transform'] = obj['transform'] = 'translate(' + offset.left + 'px,' + offset.top + 'px)'; + } else { + obj.left = offset.left; + obj.top = offset.top; + } + return obj; + } + + } + }); + + + + /*>>zoom*/ + + /*>>iframe*/ + + var IFRAME_NS = 'iframe', + _emptyPage = '//about:blank', + + _fixIframeBugs = function(isShowing) { + if(mfp.currTemplate[IFRAME_NS]) { + var el = mfp.currTemplate[IFRAME_NS].find('iframe'); + if(el.length) { + // reset src after the popup is closed to avoid "video keeps playing after popup is closed" bug + if(!isShowing) { + el[0].src = _emptyPage; + } + + // IE8 black screen bug fix + if(mfp.isIE8) { + el.css('display', isShowing ? 'block' : 'none'); + } + } + } + }; + + $.magnificPopup.registerModule(IFRAME_NS, { + + options: { + markup: '
'+ + '
'+ + ''+ + '
', + + srcAction: 'iframe_src', + + // we don't care and support only one default type of URL by default + patterns: { + youtube: { + index: 'youtube.com', + id: 'v=', + src: '//www.youtube.com/embed/%id%?autoplay=1' + }, + vimeo: { + index: 'vimeo.com/', + id: '/', + src: '//player.vimeo.com/video/%id%?autoplay=1' + }, + gmaps: { + index: '//maps.google.', + src: '%id%&output=embed' + } + } + }, + + proto: { + initIframe: function() { + mfp.types.push(IFRAME_NS); + + _mfpOn('BeforeChange', function(e, prevType, newType) { + if(prevType !== newType) { + if(prevType === IFRAME_NS) { + _fixIframeBugs(); // iframe if removed + } else if(newType === IFRAME_NS) { + _fixIframeBugs(true); // iframe is showing + } + }// else { + // iframe source is switched, don't do anything + //} + }); + + _mfpOn(CLOSE_EVENT + '.' + IFRAME_NS, function() { + _fixIframeBugs(); + }); + }, + + getIframe: function(item, template) { + var embedSrc = item.src; + var iframeSt = mfp.st.iframe; + + $.each(iframeSt.patterns, function() { + if(embedSrc.indexOf( this.index ) > -1) { + if(this.id) { + if(typeof this.id === 'string') { + embedSrc = embedSrc.substr(embedSrc.lastIndexOf(this.id)+this.id.length, embedSrc.length); + } else { + embedSrc = this.id.call( this, embedSrc ); + } + } + embedSrc = this.src.replace('%id%', embedSrc ); + return false; // break; + } + }); + + var dataObj = {}; + if(iframeSt.srcAction) { + dataObj[iframeSt.srcAction] = embedSrc; + } + mfp._parseMarkup(template, dataObj, item); + + mfp.updateStatus('ready'); + + return template; + } + } + }); + + + + /*>>iframe*/ + + /*>>gallery*/ + /** + * Get looped index depending on number of slides + */ + var _getLoopedId = function(index) { + var numSlides = mfp.items.length; + if(index > numSlides - 1) { + return index - numSlides; + } else if(index < 0) { + return numSlides + index; + } + return index; + }, + _replaceCurrTotal = function(text, curr, total) { + return text.replace(/%curr%/gi, curr + 1).replace(/%total%/gi, total); + }; + + $.magnificPopup.registerModule('gallery', { + + options: { + enabled: false, + arrowMarkup: '', + preload: [0,2], + navigateByImgClick: true, + arrows: true, + + tPrev: 'Previous (Left arrow key)', + tNext: 'Next (Right arrow key)', + tCounter: '%curr% of %total%' + }, + + proto: { + initGallery: function() { + + var gSt = mfp.st.gallery, + ns = '.mfp-gallery'; + + mfp.direction = true; // true - next, false - prev + + if(!gSt || !gSt.enabled ) return false; + + _wrapClasses += ' mfp-gallery'; + + _mfpOn(OPEN_EVENT+ns, function() { + + if(gSt.navigateByImgClick) { + mfp.wrap.on('click'+ns, '.mfp-img', function() { + if(mfp.items.length > 1) { + mfp.next(); + return false; + } + }); + } + + _document.on('keydown'+ns, function(e) { + if (e.keyCode === 37) { + mfp.prev(); + } else if (e.keyCode === 39) { + mfp.next(); + } + }); + }); + + _mfpOn('UpdateStatus'+ns, function(e, data) { + if(data.text) { + data.text = _replaceCurrTotal(data.text, mfp.currItem.index, mfp.items.length); + } + }); + + _mfpOn(MARKUP_PARSE_EVENT+ns, function(e, element, values, item) { + var l = mfp.items.length; + values.counter = l > 1 ? _replaceCurrTotal(gSt.tCounter, item.index, l) : ''; + }); + + _mfpOn('BuildControls' + ns, function() { + if(mfp.items.length > 1 && gSt.arrows && !mfp.arrowLeft) { + var markup = gSt.arrowMarkup, + arrowLeft = mfp.arrowLeft = $( markup.replace(/%title%/gi, gSt.tPrev).replace(/%dir%/gi, 'left') ).addClass(PREVENT_CLOSE_CLASS), + arrowRight = mfp.arrowRight = $( markup.replace(/%title%/gi, gSt.tNext).replace(/%dir%/gi, 'right') ).addClass(PREVENT_CLOSE_CLASS); + + arrowLeft.click(function() { + mfp.prev(); + }); + arrowRight.click(function() { + mfp.next(); + }); + + mfp.container.append(arrowLeft.add(arrowRight)); + } + }); + + _mfpOn(CHANGE_EVENT+ns, function() { + if(mfp._preloadTimeout) clearTimeout(mfp._preloadTimeout); + + mfp._preloadTimeout = setTimeout(function() { + mfp.preloadNearbyImages(); + mfp._preloadTimeout = null; + }, 16); + }); + + + _mfpOn(CLOSE_EVENT+ns, function() { + _document.off(ns); + mfp.wrap.off('click'+ns); + mfp.arrowRight = mfp.arrowLeft = null; + }); + + }, + next: function() { + mfp.direction = true; + mfp.index = _getLoopedId(mfp.index + 1); + mfp.updateItemHTML(); + }, + prev: function() { + mfp.direction = false; + mfp.index = _getLoopedId(mfp.index - 1); + mfp.updateItemHTML(); + }, + goTo: function(newIndex) { + mfp.direction = (newIndex >= mfp.index); + mfp.index = newIndex; + mfp.updateItemHTML(); + }, + preloadNearbyImages: function() { + var p = mfp.st.gallery.preload, + preloadBefore = Math.min(p[0], mfp.items.length), + preloadAfter = Math.min(p[1], mfp.items.length), + i; + + for(i = 1; i <= (mfp.direction ? preloadAfter : preloadBefore); i++) { + mfp._preloadItem(mfp.index+i); + } + for(i = 1; i <= (mfp.direction ? preloadBefore : preloadAfter); i++) { + mfp._preloadItem(mfp.index-i); + } + }, + _preloadItem: function(index) { + index = _getLoopedId(index); + + if(mfp.items[index].preloaded) { + return; + } + + var item = mfp.items[index]; + if(!item.parsed) { + item = mfp.parseEl( index ); + } + + _mfpTrigger('LazyLoad', item); + + if(item.type === 'image') { + item.img = $('').on('load.mfploader', function() { + item.hasSize = true; + }).on('error.mfploader', function() { + item.hasSize = true; + item.loadError = true; + _mfpTrigger('LazyLoadError', item); + }).attr('src', item.src); + } + + + item.preloaded = true; + } + } + }); + + /*>>gallery*/ + + /*>>retina*/ + + var RETINA_NS = 'retina'; + + $.magnificPopup.registerModule(RETINA_NS, { + options: { + replaceSrc: function(item) { + return item.src.replace(/\.\w+$/, function(m) { return '@2x' + m; }); + }, + ratio: 1 // Function or number. Set to 1 to disable. + }, + proto: { + initRetina: function() { + if(window.devicePixelRatio > 1) { + + var st = mfp.st.retina, + ratio = st.ratio; + + ratio = !isNaN(ratio) ? ratio : ratio(); + + if(ratio > 1) { + _mfpOn('ImageHasSize' + '.' + RETINA_NS, function(e, item) { + item.img.css({ + 'max-width': item.img[0].naturalWidth / ratio, + 'width': '100%' + }); + }); + _mfpOn('ElementParse' + '.' + RETINA_NS, function(e, item) { + item.src = st.replaceSrc(item, ratio); + }); + } + } + + } + } + }); + + /*>>retina*/ + _checkInstance(); })); \ No newline at end of file diff --git a/assets/js/plugins/smooth-scroll.js b/assets/js/plugins/smooth-scroll.js new file mode 100644 index 00000000..c4179a73 --- /dev/null +++ b/assets/js/plugins/smooth-scroll.js @@ -0,0 +1,650 @@ +/*! + * smooth-scroll v16.1.2 + * Animate scrolling to anchor links + * (c) 2020 Chris Ferdinandi + * MIT License + * http://github.com/cferdinandi/smooth-scroll + */ + +(function (root, factory) { + if (typeof define === 'function' && define.amd) { + define([], (function () { + return factory(root); + })); + } else if (typeof exports === 'object') { + module.exports = factory(root); + } else { + root.SmoothScroll = factory(root); + } +})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) { + + 'use strict'; + + // + // Default settings + // + + var defaults = { + + // Selectors + ignore: '[data-scroll-ignore]', + header: null, + topOnEmptyHash: true, + + // Speed & Duration + speed: 500, + speedAsDuration: false, + durationMax: null, + durationMin: null, + clip: true, + offset: 0, + + // Easing + easing: 'easeInOutCubic', + customEasing: null, + + // History + updateURL: true, + popstate: true, + + // Custom Events + emitEvents: true + + }; + + + // + // Utility Methods + // + + /** + * Check if browser supports required methods + * @return {Boolean} Returns true if all required methods are supported + */ + var supports = function () { + return ( + 'querySelector' in document && + 'addEventListener' in window && + 'requestAnimationFrame' in window && + 'closest' in window.Element.prototype + ); + }; + + /** + * Merge two or more objects together. + * @param {Object} objects The objects to merge together + * @returns {Object} Merged values of defaults and options + */ + var extend = function () { + var merged = {}; + Array.prototype.forEach.call(arguments, (function (obj) { + for (var key in obj) { + if (!obj.hasOwnProperty(key)) return; + merged[key] = obj[key]; + } + })); + return merged; + }; + + /** + * Check to see if user prefers reduced motion + * @param {Object} settings Script settings + */ + var reduceMotion = function () { + if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) { + return true; + } + return false; + }; + + /** + * Get the height of an element. + * @param {Node} elem The element to get the height of + * @return {Number} The element's height in pixels + */ + var getHeight = function (elem) { + return parseInt(window.getComputedStyle(elem).height, 10); + }; + + /** + * Escape special characters for use with querySelector + * @author Mathias Bynens + * @link https://github.com/mathiasbynens/CSS.escape + * @param {String} id The anchor ID to escape + */ + var escapeCharacters = function (id) { + + // Remove leading hash + if (id.charAt(0) === '#') { + id = id.substr(1); + } + + var string = String(id); + var length = string.length; + var index = -1; + var codeUnit; + var result = ''; + var firstCodeUnit = string.charCodeAt(0); + while (++index < length) { + codeUnit = string.charCodeAt(index); + // Note: there’s no need to special-case astral symbols, surrogate + // pairs, or lone surrogates. + + // If the character is NULL (U+0000), then throw an + // `InvalidCharacterError` exception and terminate these steps. + if (codeUnit === 0x0000) { + throw new InvalidCharacterError( + 'Invalid character: the input contains U+0000.' + ); + } + + if ( + // If the character is in the range [\1-\1F] (U+0001 to U+001F) or is + // U+007F, […] + (codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F || + // If the character is the first character and is in the range [0-9] + // (U+0030 to U+0039), […] + (index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) || + // If the character is the second character and is in the range [0-9] + // (U+0030 to U+0039) and the first character is a `-` (U+002D), […] + ( + index === 1 && + codeUnit >= 0x0030 && codeUnit <= 0x0039 && + firstCodeUnit === 0x002D + ) + ) { + // http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point + result += '\\' + codeUnit.toString(16) + ' '; + continue; + } + + // If the character is not handled by one of the above rules and is + // greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or + // is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to + // U+005A), or [a-z] (U+0061 to U+007A), […] + if ( + codeUnit >= 0x0080 || + codeUnit === 0x002D || + codeUnit === 0x005F || + codeUnit >= 0x0030 && codeUnit <= 0x0039 || + codeUnit >= 0x0041 && codeUnit <= 0x005A || + codeUnit >= 0x0061 && codeUnit <= 0x007A + ) { + // the character itself + result += string.charAt(index); + continue; + } + + // Otherwise, the escaped character. + // http://dev.w3.org/csswg/cssom/#escape-a-character + result += '\\' + string.charAt(index); + + } + + // Return sanitized hash + return '#' + result; + + }; + + /** + * Calculate the easing pattern + * @link https://gist.github.com/gre/1650294 + * @param {String} type Easing pattern + * @param {Number} time Time animation should take to complete + * @returns {Number} + */ + var easingPattern = function (settings, time) { + var pattern; + + // Default Easing Patterns + if (settings.easing === 'easeInQuad') pattern = time * time; // accelerating from zero velocity + if (settings.easing === 'easeOutQuad') pattern = time * (2 - time); // decelerating to zero velocity + if (settings.easing === 'easeInOutQuad') pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration + if (settings.easing === 'easeInCubic') pattern = time * time * time; // accelerating from zero velocity + if (settings.easing === 'easeOutCubic') pattern = (--time) * time * time + 1; // decelerating to zero velocity + if (settings.easing === 'easeInOutCubic') pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration + if (settings.easing === 'easeInQuart') pattern = time * time * time * time; // accelerating from zero velocity + if (settings.easing === 'easeOutQuart') pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity + if (settings.easing === 'easeInOutQuart') pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration + if (settings.easing === 'easeInQuint') pattern = time * time * time * time * time; // accelerating from zero velocity + if (settings.easing === 'easeOutQuint') pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity + if (settings.easing === 'easeInOutQuint') pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration + + // Custom Easing Patterns + if (!!settings.customEasing) pattern = settings.customEasing(time); + + return pattern || time; // no easing, no acceleration + }; + + /** + * Determine the document's height + * @returns {Number} + */ + var getDocumentHeight = function () { + return Math.max( + document.body.scrollHeight, document.documentElement.scrollHeight, + document.body.offsetHeight, document.documentElement.offsetHeight, + document.body.clientHeight, document.documentElement.clientHeight + ); + }; + + /** + * Calculate how far to scroll + * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405 + * @param {Element} anchor The anchor element to scroll to + * @param {Number} headerHeight Height of a fixed header, if any + * @param {Number} offset Number of pixels by which to offset scroll + * @param {Boolean} clip If true, adjust scroll distance to prevent abrupt stops near the bottom of the page + * @returns {Number} + */ + var getEndLocation = function (anchor, headerHeight, offset, clip) { + var location = 0; + if (anchor.offsetParent) { + do { + location += anchor.offsetTop; + anchor = anchor.offsetParent; + } while (anchor); + } + location = Math.max(location - headerHeight - offset, 0); + if (clip) { + location = Math.min(location, getDocumentHeight() - window.innerHeight); + } + return location; + }; + + /** + * Get the height of the fixed header + * @param {Node} header The header + * @return {Number} The height of the header + */ + var getHeaderHeight = function (header) { + return !header ? 0 : (getHeight(header) + header.offsetTop); + }; + + /** + * Calculate the speed to use for the animation + * @param {Number} distance The distance to travel + * @param {Object} settings The plugin settings + * @return {Number} How fast to animate + */ + var getSpeed = function (distance, settings) { + var speed = settings.speedAsDuration ? settings.speed : Math.abs(distance / 1000 * settings.speed); + if (settings.durationMax && speed > settings.durationMax) return settings.durationMax; + if (settings.durationMin && speed < settings.durationMin) return settings.durationMin; + return parseInt(speed, 10); + }; + + var setHistory = function (options) { + + // Make sure this should run + if (!history.replaceState || !options.updateURL || history.state) return; + + // Get the hash to use + var hash = window.location.hash; + hash = hash ? hash : ''; + + // Set a default history + history.replaceState( + { + smoothScroll: JSON.stringify(options), + anchor: hash ? hash : window.pageYOffset + }, + document.title, + hash ? hash : window.location.href + ); + + }; + + /** + * Update the URL + * @param {Node} anchor The anchor that was scrolled to + * @param {Boolean} isNum If true, anchor is a number + * @param {Object} options Settings for Smooth Scroll + */ + var updateURL = function (anchor, isNum, options) { + + // Bail if the anchor is a number + if (isNum) return; + + // Verify that pushState is supported and the updateURL option is enabled + if (!history.pushState || !options.updateURL) return; + + // Update URL + history.pushState( + { + smoothScroll: JSON.stringify(options), + anchor: anchor.id + }, + document.title, + anchor === document.documentElement ? '#top' : '#' + anchor.id + ); + + }; + + /** + * Bring the anchored element into focus + * @param {Node} anchor The anchor element + * @param {Number} endLocation The end location to scroll to + * @param {Boolean} isNum If true, scroll is to a position rather than an element + */ + var adjustFocus = function (anchor, endLocation, isNum) { + + // Is scrolling to top of page, blur + if (anchor === 0) { + document.body.focus(); + } + + // Don't run if scrolling to a number on the page + if (isNum) return; + + // Otherwise, bring anchor element into focus + anchor.focus(); + if (document.activeElement !== anchor) { + anchor.setAttribute('tabindex', '-1'); + anchor.focus(); + anchor.style.outline = 'none'; + } + window.scrollTo(0 , endLocation); + + }; + + /** + * Emit a custom event + * @param {String} type The event type + * @param {Object} options The settings object + * @param {Node} anchor The anchor element + * @param {Node} toggle The toggle element + */ + var emitEvent = function (type, options, anchor, toggle) { + if (!options.emitEvents || typeof window.CustomEvent !== 'function') return; + var event = new CustomEvent(type, { + bubbles: true, + detail: { + anchor: anchor, + toggle: toggle + } + }); + document.dispatchEvent(event); + }; + + + // + // SmoothScroll Constructor + // + + var SmoothScroll = function (selector, options) { + + // + // Variables + // + + var smoothScroll = {}; // Object for public APIs + var settings, anchor, toggle, fixedHeader, eventTimeout, animationInterval; + + + // + // Methods + // + + /** + * Cancel a scroll-in-progress + */ + smoothScroll.cancelScroll = function (noEvent) { + cancelAnimationFrame(animationInterval); + animationInterval = null; + if (noEvent) return; + emitEvent('scrollCancel', settings); + }; + + /** + * Start/stop the scrolling animation + * @param {Node|Number} anchor The element or position to scroll to + * @param {Element} toggle The element that toggled the scroll event + * @param {Object} options + */ + smoothScroll.animateScroll = function (anchor, toggle, options) { + + // Cancel any in progress scrolls + smoothScroll.cancelScroll(); + + // Local settings + var _settings = extend(settings || defaults, options || {}); // Merge user options with defaults + + // Selectors and variables + var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false; + var anchorElem = isNum || !anchor.tagName ? null : anchor; + if (!isNum && !anchorElem) return; + var startLocation = window.pageYOffset; // Current location on the page + if (_settings.header && !fixedHeader) { + // Get the fixed header if not already set + fixedHeader = document.querySelector(_settings.header); + } + var headerHeight = getHeaderHeight(fixedHeader); + var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof _settings.offset === 'function' ? _settings.offset(anchor, toggle) : _settings.offset), 10), _settings.clip); // Location to scroll to + var distance = endLocation - startLocation; // distance to travel + var documentHeight = getDocumentHeight(); + var timeLapsed = 0; + var speed = getSpeed(distance, _settings); + var start, percentage, position; + + /** + * Stop the scroll animation when it reaches its target (or the bottom/top of page) + * @param {Number} position Current position on the page + * @param {Number} endLocation Scroll to location + * @param {Number} animationInterval How much to scroll on this loop + */ + var stopAnimateScroll = function (position, endLocation) { + + // Get the current location + var currentLocation = window.pageYOffset; + + // Check if the end location has been reached yet (or we've hit the end of the document) + if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) { + + // Clear the animation timer + smoothScroll.cancelScroll(true); + + // Bring the anchored element into focus + adjustFocus(anchor, endLocation, isNum); + + // Emit a custom event + emitEvent('scrollStop', _settings, anchor, toggle); + + // Reset start + start = null; + animationInterval = null; + + return true; + + } + }; + + /** + * Loop scrolling animation + */ + var loopAnimateScroll = function (timestamp) { + if (!start) { start = timestamp; } + timeLapsed += timestamp - start; + percentage = speed === 0 ? 0 : (timeLapsed / speed); + percentage = (percentage > 1) ? 1 : percentage; + position = startLocation + (distance * easingPattern(_settings, percentage)); + window.scrollTo(0, Math.floor(position)); + if (!stopAnimateScroll(position, endLocation)) { + animationInterval = window.requestAnimationFrame(loopAnimateScroll); + start = timestamp; + } + }; + + /** + * Reset position to fix weird iOS bug + * @link https://github.com/cferdinandi/smooth-scroll/issues/45 + */ + if (window.pageYOffset === 0) { + window.scrollTo(0, 0); + } + + // Update the URL + updateURL(anchor, isNum, _settings); + + // If the user prefers reduced motion, jump to location + if (reduceMotion()) { + window.scrollTo(0, Math.floor(endLocation)); + return; + } + + // Emit a custom event + emitEvent('scrollStart', _settings, anchor, toggle); + + // Start scrolling animation + smoothScroll.cancelScroll(true); + window.requestAnimationFrame(loopAnimateScroll); + + }; + + /** + * If smooth scroll element clicked, animate scroll + */ + var clickHandler = function (event) { + + // Don't run if event was canceled but still bubbled up + // By @mgreter - https://github.com/cferdinandi/smooth-scroll/pull/462/ + if (event.defaultPrevented) return; + + // Don't run if right-click or command/control + click or shift + click + if (event.button !== 0 || event.metaKey || event.ctrlKey || event.shiftKey) return; + + // Check if event.target has closest() method + // By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/ + if (!('closest' in event.target)) return; + + // Check if a smooth scroll link was clicked + toggle = event.target.closest(selector); + if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return; + + // Only run if link is an anchor and points to the current page + if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return; + + // Get an escaped version of the hash + var hash; + try { + hash = escapeCharacters(decodeURIComponent(toggle.hash)); + } catch(e) { + hash = escapeCharacters(toggle.hash); + } + + // Get the anchored element + var anchor; + if (hash === '#') { + if (!settings.topOnEmptyHash) return; + anchor = document.documentElement; + } else { + anchor = document.querySelector(hash); + } + anchor = !anchor && hash === '#top' ? document.documentElement : anchor; + + // If anchored element exists, scroll to it + if (!anchor) return; + event.preventDefault(); + setHistory(settings); + smoothScroll.animateScroll(anchor, toggle); + + }; + + /** + * Animate scroll on popstate events + */ + var popstateHandler = function (event) { + + // Stop if history.state doesn't exist (ex. if clicking on a broken anchor link). + // fixes `Cannot read property 'smoothScroll' of null` error getting thrown. + if (history.state === null) return; + + // Only run if state is a popstate record for this instantiation + if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return; + + // Only run if state includes an anchor + + // if (!history.state.anchor && history.state.anchor !== 0) return; + + // Get the anchor + var anchor = history.state.anchor; + if (typeof anchor === 'string' && anchor) { + anchor = document.querySelector(escapeCharacters(history.state.anchor)); + if (!anchor) return; + } + + // Animate scroll to anchor link + smoothScroll.animateScroll(anchor, null, {updateURL: false}); + + }; + + /** + * Destroy the current initialization. + */ + smoothScroll.destroy = function () { + + // If plugin isn't already initialized, stop + if (!settings) return; + + // Remove event listeners + document.removeEventListener('click', clickHandler, false); + window.removeEventListener('popstate', popstateHandler, false); + + // Cancel any scrolls-in-progress + smoothScroll.cancelScroll(); + + // Reset variables + settings = null; + anchor = null; + toggle = null; + fixedHeader = null; + eventTimeout = null; + animationInterval = null; + + }; + + /** + * Initialize Smooth Scroll + * @param {Object} options User settings + */ + var init = function () { + + // feature test + if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.'; + + // Destroy any existing initializations + smoothScroll.destroy(); + + // Selectors and variables + settings = extend(defaults, options || {}); // Merge user options with defaults + fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header + + // When a toggle is clicked, run the click handler + document.addEventListener('click', clickHandler, false); + + // If updateURL and popState are enabled, listen for pop events + if (settings.updateURL && settings.popstate) { + window.addEventListener('popstate', popstateHandler, false); + } + + }; + + + // + // Initialize plugin + // + + init(); + + + // + // Public APIs + // + + return smoothScroll; + + }; + + return SmoothScroll; + +})); diff --git a/assets/js/vendor/jquery/jquery-3.6.0.js b/assets/js/vendor/jquery/jquery-3.6.0.js new file mode 100644 index 00000000..fc6c299b --- /dev/null +++ b/assets/js/vendor/jquery/jquery-3.6.0.js @@ -0,0 +1,10881 @@ +/*! + * jQuery JavaScript Library v3.6.0 + * https://jquery.com/ + * + * Includes Sizzle.js + * https://sizzlejs.com/ + * + * Copyright OpenJS Foundation and other contributors + * Released under the MIT license + * https://jquery.org/license + * + * Date: 2021-03-02T17:08Z + */ +( function( global, factory ) { + + "use strict"; + + if ( typeof module === "object" && typeof module.exports === "object" ) { + + // For CommonJS and CommonJS-like environments where a proper `window` + // is present, execute the factory and get jQuery. + // For environments that do not have a `window` with a `document` + // (such as Node.js), expose a factory as module.exports. + // This accentuates the need for the creation of a real `window`. + // e.g. var jQuery = require("jquery")(window); + // See ticket #14549 for more info. + module.exports = global.document ? + factory( global, true ) : + function( w ) { + if ( !w.document ) { + throw new Error( "jQuery requires a window with a document" ); + } + return factory( w ); + }; + } else { + factory( global ); + } + +// Pass this if window is not defined yet +} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) { + +// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1 +// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode +// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common +// enough that all such attempts are guarded in a try block. +"use strict"; + +var arr = []; + +var getProto = Object.getPrototypeOf; + +var slice = arr.slice; + +var flat = arr.flat ? function( array ) { + return arr.flat.call( array ); +} : function( array ) { + return arr.concat.apply( [], array ); +}; + + +var push = arr.push; + +var indexOf = arr.indexOf; + +var class2type = {}; + +var toString = class2type.toString; + +var hasOwn = class2type.hasOwnProperty; + +var fnToString = hasOwn.toString; + +var ObjectFunctionString = fnToString.call( Object ); + +var support = {}; + +var isFunction = function isFunction( obj ) { + + // Support: Chrome <=57, Firefox <=52 + // In some browsers, typeof returns "function" for HTML elements + // (i.e., `typeof document.createElement( "object" ) === "function"`). + // We don't want to classify *any* DOM node as a function. + // Support: QtWeb <=3.8.5, WebKit <=534.34, wkhtmltopdf tool <=0.12.5 + // Plus for old WebKit, typeof returns "function" for HTML collections + // (e.g., `typeof document.getElementsByTagName("div") === "function"`). (gh-4756) + return typeof obj === "function" && typeof obj.nodeType !== "number" && + typeof obj.item !== "function"; + }; + + +var isWindow = function isWindow( obj ) { + return obj != null && obj === obj.window; + }; + + +var document = window.document; + + + + var preservedScriptAttributes = { + type: true, + src: true, + nonce: true, + noModule: true + }; + + function DOMEval( code, node, doc ) { + doc = doc || document; + + var i, val, + script = doc.createElement( "script" ); + + script.text = code; + if ( node ) { + for ( i in preservedScriptAttributes ) { + + // Support: Firefox 64+, Edge 18+ + // Some browsers don't support the "nonce" property on scripts. + // On the other hand, just using `getAttribute` is not enough as + // the `nonce` attribute is reset to an empty string whenever it + // becomes browsing-context connected. + // See https://github.com/whatwg/html/issues/2369 + // See https://html.spec.whatwg.org/#nonce-attributes + // The `node.getAttribute` check was added for the sake of + // `jQuery.globalEval` so that it can fake a nonce-containing node + // via an object. + val = node[ i ] || node.getAttribute && node.getAttribute( i ); + if ( val ) { + script.setAttribute( i, val ); + } + } + } + doc.head.appendChild( script ).parentNode.removeChild( script ); + } + + +function toType( obj ) { + if ( obj == null ) { + return obj + ""; + } + + // Support: Android <=2.3 only (functionish RegExp) + return typeof obj === "object" || typeof obj === "function" ? + class2type[ toString.call( obj ) ] || "object" : + typeof obj; +} +/* global Symbol */ +// Defining this global in .eslintrc.json would create a danger of using the global +// unguarded in another place, it seems safer to define global only for this module + + + +var + version = "3.6.0", + + // Define a local copy of jQuery + jQuery = function( selector, context ) { + + // The jQuery object is actually just the init constructor 'enhanced' + // Need init if jQuery is called (just allow error to be thrown if not included) + return new jQuery.fn.init( selector, context ); + }; + +jQuery.fn = jQuery.prototype = { + + // The current version of jQuery being used + jquery: version, + + constructor: jQuery, + + // The default length of a jQuery object is 0 + length: 0, + + toArray: function() { + return slice.call( this ); + }, + + // Get the Nth element in the matched element set OR + // Get the whole matched element set as a clean array + get: function( num ) { + + // Return all the elements in a clean array + if ( num == null ) { + return slice.call( this ); + } + + // Return just the one element from the set + return num < 0 ? this[ num + this.length ] : this[ num ]; + }, + + // Take an array of elements and push it onto the stack + // (returning the new matched element set) + pushStack: function( elems ) { + + // Build a new jQuery matched element set + var ret = jQuery.merge( this.constructor(), elems ); + + // Add the old object onto the stack (as a reference) + ret.prevObject = this; + + // Return the newly-formed element set + return ret; + }, + + // Execute a callback for every element in the matched set. + each: function( callback ) { + return jQuery.each( this, callback ); + }, + + map: function( callback ) { + return this.pushStack( jQuery.map( this, function( elem, i ) { + return callback.call( elem, i, elem ); + } ) ); + }, + + slice: function() { + return this.pushStack( slice.apply( this, arguments ) ); + }, + + first: function() { + return this.eq( 0 ); + }, + + last: function() { + return this.eq( -1 ); + }, + + even: function() { + return this.pushStack( jQuery.grep( this, function( _elem, i ) { + return ( i + 1 ) % 2; + } ) ); + }, + + odd: function() { + return this.pushStack( jQuery.grep( this, function( _elem, i ) { + return i % 2; + } ) ); + }, + + eq: function( i ) { + var len = this.length, + j = +i + ( i < 0 ? len : 0 ); + return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] ); + }, + + end: function() { + return this.prevObject || this.constructor(); + }, + + // For internal use only. + // Behaves like an Array's method, not like a jQuery method. + push: push, + sort: arr.sort, + splice: arr.splice +}; + +jQuery.extend = jQuery.fn.extend = function() { + var options, name, src, copy, copyIsArray, clone, + target = arguments[ 0 ] || {}, + i = 1, + length = arguments.length, + deep = false; + + // Handle a deep copy situation + if ( typeof target === "boolean" ) { + deep = target; + + // Skip the boolean and the target + target = arguments[ i ] || {}; + i++; + } + + // Handle case when target is a string or something (possible in deep copy) + if ( typeof target !== "object" && !isFunction( target ) ) { + target = {}; + } + + // Extend jQuery itself if only one argument is passed + if ( i === length ) { + target = this; + i--; + } + + for ( ; i < length; i++ ) { + + // Only deal with non-null/undefined values + if ( ( options = arguments[ i ] ) != null ) { + + // Extend the base object + for ( name in options ) { + copy = options[ name ]; + + // Prevent Object.prototype pollution + // Prevent never-ending loop + if ( name === "__proto__" || target === copy ) { + continue; + } + + // Recurse if we're merging plain objects or arrays + if ( deep && copy && ( jQuery.isPlainObject( copy ) || + ( copyIsArray = Array.isArray( copy ) ) ) ) { + src = target[ name ]; + + // Ensure proper type for the source value + if ( copyIsArray && !Array.isArray( src ) ) { + clone = []; + } else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) { + clone = {}; + } else { + clone = src; + } + copyIsArray = false; + + // Never move original objects, clone them + target[ name ] = jQuery.extend( deep, clone, copy ); + + // Don't bring in undefined values + } else if ( copy !== undefined ) { + target[ name ] = copy; + } + } + } + } + + // Return the modified object + return target; +}; + +jQuery.extend( { + + // Unique for each copy of jQuery on the page + expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ), + + // Assume jQuery is ready without the ready module + isReady: true, + + error: function( msg ) { + throw new Error( msg ); + }, + + noop: function() {}, + + isPlainObject: function( obj ) { + var proto, Ctor; + + // Detect obvious negatives + // Use toString instead of jQuery.type to catch host objects + if ( !obj || toString.call( obj ) !== "[object Object]" ) { + return false; + } + + proto = getProto( obj ); + + // Objects with no prototype (e.g., `Object.create( null )`) are plain + if ( !proto ) { + return true; + } + + // Objects with prototype are plain iff they were constructed by a global Object function + Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor; + return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString; + }, + + isEmptyObject: function( obj ) { + var name; + + for ( name in obj ) { + return false; + } + return true; + }, + + // Evaluates a script in a provided context; falls back to the global one + // if not specified. + globalEval: function( code, options, doc ) { + DOMEval( code, { nonce: options && options.nonce }, doc ); + }, + + each: function( obj, callback ) { + var length, i = 0; + + if ( isArrayLike( obj ) ) { + length = obj.length; + for ( ; i < length; i++ ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; + } + } + } else { + for ( i in obj ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; + } + } + } + + return obj; + }, + + // results is for internal usage only + makeArray: function( arr, results ) { + var ret = results || []; + + if ( arr != null ) { + if ( isArrayLike( Object( arr ) ) ) { + jQuery.merge( ret, + typeof arr === "string" ? + [ arr ] : arr + ); + } else { + push.call( ret, arr ); + } + } + + return ret; + }, + + inArray: function( elem, arr, i ) { + return arr == null ? -1 : indexOf.call( arr, elem, i ); + }, + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + merge: function( first, second ) { + var len = +second.length, + j = 0, + i = first.length; + + for ( ; j < len; j++ ) { + first[ i++ ] = second[ j ]; + } + + first.length = i; + + return first; + }, + + grep: function( elems, callback, invert ) { + var callbackInverse, + matches = [], + i = 0, + length = elems.length, + callbackExpect = !invert; + + // Go through the array, only saving the items + // that pass the validator function + for ( ; i < length; i++ ) { + callbackInverse = !callback( elems[ i ], i ); + if ( callbackInverse !== callbackExpect ) { + matches.push( elems[ i ] ); + } + } + + return matches; + }, + + // arg is for internal usage only + map: function( elems, callback, arg ) { + var length, value, + i = 0, + ret = []; + + // Go through the array, translating each of the items to their new values + if ( isArrayLike( elems ) ) { + length = elems.length; + for ( ; i < length; i++ ) { + value = callback( elems[ i ], i, arg ); + + if ( value != null ) { + ret.push( value ); + } + } + + // Go through every key on the object, + } else { + for ( i in elems ) { + value = callback( elems[ i ], i, arg ); + + if ( value != null ) { + ret.push( value ); + } + } + } + + // Flatten any nested arrays + return flat( ret ); + }, + + // A global GUID counter for objects + guid: 1, + + // jQuery.support is not used in Core but other projects attach their + // properties to it so it needs to exist. + support: support +} ); + +if ( typeof Symbol === "function" ) { + jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ]; +} + +// Populate the class2type map +jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), + function( _i, name ) { + class2type[ "[object " + name + "]" ] = name.toLowerCase(); + } ); + +function isArrayLike( obj ) { + + // Support: real iOS 8.2 only (not reproducible in simulator) + // `in` check used to prevent JIT error (gh-2145) + // hasOwn isn't used here due to false negatives + // regarding Nodelist length in IE + var length = !!obj && "length" in obj && obj.length, + type = toType( obj ); + + if ( isFunction( obj ) || isWindow( obj ) ) { + return false; + } + + return type === "array" || length === 0 || + typeof length === "number" && length > 0 && ( length - 1 ) in obj; +} +var Sizzle = +/*! + * Sizzle CSS Selector Engine v2.3.6 + * https://sizzlejs.com/ + * + * Copyright JS Foundation and other contributors + * Released under the MIT license + * https://js.foundation/ + * + * Date: 2021-02-16 + */ +( function( window ) { +var i, + support, + Expr, + getText, + isXML, + tokenize, + compile, + select, + outermostContext, + sortInput, + hasDuplicate, + + // Local document vars + setDocument, + document, + docElem, + documentIsHTML, + rbuggyQSA, + rbuggyMatches, + matches, + contains, + + // Instance-specific data + expando = "sizzle" + 1 * new Date(), + preferredDoc = window.document, + dirruns = 0, + done = 0, + classCache = createCache(), + tokenCache = createCache(), + compilerCache = createCache(), + nonnativeSelectorCache = createCache(), + sortOrder = function( a, b ) { + if ( a === b ) { + hasDuplicate = true; + } + return 0; + }, + + // Instance methods + hasOwn = ( {} ).hasOwnProperty, + arr = [], + pop = arr.pop, + pushNative = arr.push, + push = arr.push, + slice = arr.slice, + + // Use a stripped-down indexOf as it's faster than native + // https://jsperf.com/thor-indexof-vs-for/5 + indexOf = function( list, elem ) { + var i = 0, + len = list.length; + for ( ; i < len; i++ ) { + if ( list[ i ] === elem ) { + return i; + } + } + return -1; + }, + + booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" + + "ismap|loop|multiple|open|readonly|required|scoped", + + // Regular expressions + + // http://www.w3.org/TR/css3-selectors/#whitespace + whitespace = "[\\x20\\t\\r\\n\\f]", + + // https://www.w3.org/TR/css-syntax-3/#ident-token-diagram + identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace + + "?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+", + + // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors + attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + + + // Operator (capture 2) + "*([*^$|!~]?=)" + whitespace + + + // "Attribute values must be CSS identifiers [capture 5] + // or strings [capture 3 or capture 4]" + "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + + whitespace + "*\\]", + + pseudos = ":(" + identifier + ")(?:\\((" + + + // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments: + // 1. quoted (capture 3; capture 4 or capture 5) + "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + + + // 2. simple (capture 6) + "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + + + // 3. anything else (capture 2) + ".*" + + ")\\)|)", + + // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter + rwhitespace = new RegExp( whitespace + "+", "g" ), + rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + + whitespace + "+$", "g" ), + + rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), + rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + + "*" ), + rdescend = new RegExp( whitespace + "|>" ), + + rpseudo = new RegExp( pseudos ), + ridentifier = new RegExp( "^" + identifier + "$" ), + + matchExpr = { + "ID": new RegExp( "^#(" + identifier + ")" ), + "CLASS": new RegExp( "^\\.(" + identifier + ")" ), + "TAG": new RegExp( "^(" + identifier + "|[*])" ), + "ATTR": new RegExp( "^" + attributes ), + "PSEUDO": new RegExp( "^" + pseudos ), + "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + + whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + + whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), + "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), + + // For use in libraries implementing .is() + // We use this for POS matching in `select` + "needsContext": new RegExp( "^" + whitespace + + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace + + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) + }, + + rhtml = /HTML$/i, + rinputs = /^(?:input|select|textarea|button)$/i, + rheader = /^h\d$/i, + + rnative = /^[^{]+\{\s*\[native \w/, + + // Easily-parseable/retrievable ID or TAG or CLASS selectors + rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/, + + rsibling = /[+~]/, + + // CSS escapes + // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters + runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ), + funescape = function( escape, nonHex ) { + var high = "0x" + escape.slice( 1 ) - 0x10000; + + return nonHex ? + + // Strip the backslash prefix from a non-hex escape sequence + nonHex : + + // Replace a hexadecimal escape sequence with the encoded Unicode code point + // Support: IE <=11+ + // For values outside the Basic Multilingual Plane (BMP), manually construct a + // surrogate pair + high < 0 ? + String.fromCharCode( high + 0x10000 ) : + String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); + }, + + // CSS string/identifier serialization + // https://drafts.csswg.org/cssom/#common-serializing-idioms + rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g, + fcssescape = function( ch, asCodePoint ) { + if ( asCodePoint ) { + + // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER + if ( ch === "\0" ) { + return "\uFFFD"; + } + + // Control characters and (dependent upon position) numbers get escaped as code points + return ch.slice( 0, -1 ) + "\\" + + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; + } + + // Other potentially-special ASCII characters get backslash-escaped + return "\\" + ch; + }, + + // Used for iframes + // See setDocument() + // Removing the function wrapper causes a "Permission Denied" + // error in IE + unloadHandler = function() { + setDocument(); + }, + + inDisabledFieldset = addCombinator( + function( elem ) { + return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset"; + }, + { dir: "parentNode", next: "legend" } + ); + +// Optimize for push.apply( _, NodeList ) +try { + push.apply( + ( arr = slice.call( preferredDoc.childNodes ) ), + preferredDoc.childNodes + ); + + // Support: Android<4.0 + // Detect silently failing push.apply + // eslint-disable-next-line no-unused-expressions + arr[ preferredDoc.childNodes.length ].nodeType; +} catch ( e ) { + push = { apply: arr.length ? + + // Leverage slice if possible + function( target, els ) { + pushNative.apply( target, slice.call( els ) ); + } : + + // Support: IE<9 + // Otherwise append directly + function( target, els ) { + var j = target.length, + i = 0; + + // Can't trust NodeList.length + while ( ( target[ j++ ] = els[ i++ ] ) ) {} + target.length = j - 1; + } + }; +} + +function Sizzle( selector, context, results, seed ) { + var m, i, elem, nid, match, groups, newSelector, + newContext = context && context.ownerDocument, + + // nodeType defaults to 9, since context defaults to document + nodeType = context ? context.nodeType : 9; + + results = results || []; + + // Return early from calls with invalid selector or context + if ( typeof selector !== "string" || !selector || + nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) { + + return results; + } + + // Try to shortcut find operations (as opposed to filters) in HTML documents + if ( !seed ) { + setDocument( context ); + context = context || document; + + if ( documentIsHTML ) { + + // If the selector is sufficiently simple, try using a "get*By*" DOM method + // (excepting DocumentFragment context, where the methods don't exist) + if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) { + + // ID selector + if ( ( m = match[ 1 ] ) ) { + + // Document context + if ( nodeType === 9 ) { + if ( ( elem = context.getElementById( m ) ) ) { + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( elem.id === m ) { + results.push( elem ); + return results; + } + } else { + return results; + } + + // Element context + } else { + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( newContext && ( elem = newContext.getElementById( m ) ) && + contains( context, elem ) && + elem.id === m ) { + + results.push( elem ); + return results; + } + } + + // Type selector + } else if ( match[ 2 ] ) { + push.apply( results, context.getElementsByTagName( selector ) ); + return results; + + // Class selector + } else if ( ( m = match[ 3 ] ) && support.getElementsByClassName && + context.getElementsByClassName ) { + + push.apply( results, context.getElementsByClassName( m ) ); + return results; + } + } + + // Take advantage of querySelectorAll + if ( support.qsa && + !nonnativeSelectorCache[ selector + " " ] && + ( !rbuggyQSA || !rbuggyQSA.test( selector ) ) && + + // Support: IE 8 only + // Exclude object elements + ( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) { + + newSelector = selector; + newContext = context; + + // qSA considers elements outside a scoping root when evaluating child or + // descendant combinators, which is not what we want. + // In such cases, we work around the behavior by prefixing every selector in the + // list with an ID selector referencing the scope context. + // The technique has to be used as well when a leading combinator is used + // as such selectors are not recognized by querySelectorAll. + // Thanks to Andrew Dupont for this technique. + if ( nodeType === 1 && + ( rdescend.test( selector ) || rcombinators.test( selector ) ) ) { + + // Expand context for sibling selectors + newContext = rsibling.test( selector ) && testContext( context.parentNode ) || + context; + + // We can use :scope instead of the ID hack if the browser + // supports it & if we're not changing the context. + if ( newContext !== context || !support.scope ) { + + // Capture the context ID, setting it first if necessary + if ( ( nid = context.getAttribute( "id" ) ) ) { + nid = nid.replace( rcssescape, fcssescape ); + } else { + context.setAttribute( "id", ( nid = expando ) ); + } + } + + // Prefix every selector in the list + groups = tokenize( selector ); + i = groups.length; + while ( i-- ) { + groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " + + toSelector( groups[ i ] ); + } + newSelector = groups.join( "," ); + } + + try { + push.apply( results, + newContext.querySelectorAll( newSelector ) + ); + return results; + } catch ( qsaError ) { + nonnativeSelectorCache( selector, true ); + } finally { + if ( nid === expando ) { + context.removeAttribute( "id" ); + } + } + } + } + } + + // All others + return select( selector.replace( rtrim, "$1" ), context, results, seed ); +} + +/** + * Create key-value caches of limited size + * @returns {function(string, object)} Returns the Object data after storing it on itself with + * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength) + * deleting the oldest entry + */ +function createCache() { + var keys = []; + + function cache( key, value ) { + + // Use (key + " ") to avoid collision with native prototype properties (see Issue #157) + if ( keys.push( key + " " ) > Expr.cacheLength ) { + + // Only keep the most recent entries + delete cache[ keys.shift() ]; + } + return ( cache[ key + " " ] = value ); + } + return cache; +} + +/** + * Mark a function for special use by Sizzle + * @param {Function} fn The function to mark + */ +function markFunction( fn ) { + fn[ expando ] = true; + return fn; +} + +/** + * Support testing using an element + * @param {Function} fn Passed the created element and returns a boolean result + */ +function assert( fn ) { + var el = document.createElement( "fieldset" ); + + try { + return !!fn( el ); + } catch ( e ) { + return false; + } finally { + + // Remove from its parent by default + if ( el.parentNode ) { + el.parentNode.removeChild( el ); + } + + // release memory in IE + el = null; + } +} + +/** + * Adds the same handler for all of the specified attrs + * @param {String} attrs Pipe-separated list of attributes + * @param {Function} handler The method that will be applied + */ +function addHandle( attrs, handler ) { + var arr = attrs.split( "|" ), + i = arr.length; + + while ( i-- ) { + Expr.attrHandle[ arr[ i ] ] = handler; + } +} + +/** + * Checks document order of two siblings + * @param {Element} a + * @param {Element} b + * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b + */ +function siblingCheck( a, b ) { + var cur = b && a, + diff = cur && a.nodeType === 1 && b.nodeType === 1 && + a.sourceIndex - b.sourceIndex; + + // Use IE sourceIndex if available on both nodes + if ( diff ) { + return diff; + } + + // Check if b follows a + if ( cur ) { + while ( ( cur = cur.nextSibling ) ) { + if ( cur === b ) { + return -1; + } + } + } + + return a ? 1 : -1; +} + +/** + * Returns a function to use in pseudos for input types + * @param {String} type + */ +function createInputPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for buttons + * @param {String} type + */ +function createButtonPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return ( name === "input" || name === "button" ) && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for :enabled/:disabled + * @param {Boolean} disabled true for :disabled; false for :enabled + */ +function createDisabledPseudo( disabled ) { + + // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable + return function( elem ) { + + // Only certain elements can match :enabled or :disabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled + if ( "form" in elem ) { + + // Check for inherited disabledness on relevant non-disabled elements: + // * listed form-associated elements in a disabled fieldset + // https://html.spec.whatwg.org/multipage/forms.html#category-listed + // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled + // * option elements in a disabled optgroup + // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled + // All such elements have a "form" property. + if ( elem.parentNode && elem.disabled === false ) { + + // Option elements defer to a parent optgroup if present + if ( "label" in elem ) { + if ( "label" in elem.parentNode ) { + return elem.parentNode.disabled === disabled; + } else { + return elem.disabled === disabled; + } + } + + // Support: IE 6 - 11 + // Use the isDisabled shortcut property to check for disabled fieldset ancestors + return elem.isDisabled === disabled || + + // Where there is no isDisabled, check manually + /* jshint -W018 */ + elem.isDisabled !== !disabled && + inDisabledFieldset( elem ) === disabled; + } + + return elem.disabled === disabled; + + // Try to winnow out elements that can't be disabled before trusting the disabled property. + // Some victims get caught in our net (label, legend, menu, track), but it shouldn't + // even exist on them, let alone have a boolean value. + } else if ( "label" in elem ) { + return elem.disabled === disabled; + } + + // Remaining elements are neither :enabled nor :disabled + return false; + }; +} + +/** + * Returns a function to use in pseudos for positionals + * @param {Function} fn + */ +function createPositionalPseudo( fn ) { + return markFunction( function( argument ) { + argument = +argument; + return markFunction( function( seed, matches ) { + var j, + matchIndexes = fn( [], seed.length, argument ), + i = matchIndexes.length; + + // Match elements found at the specified indexes + while ( i-- ) { + if ( seed[ ( j = matchIndexes[ i ] ) ] ) { + seed[ j ] = !( matches[ j ] = seed[ j ] ); + } + } + } ); + } ); +} + +/** + * Checks a node for validity as a Sizzle context + * @param {Element|Object=} context + * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value + */ +function testContext( context ) { + return context && typeof context.getElementsByTagName !== "undefined" && context; +} + +// Expose support vars for convenience +support = Sizzle.support = {}; + +/** + * Detects XML nodes + * @param {Element|Object} elem An element or a document + * @returns {Boolean} True iff elem is a non-HTML XML node + */ +isXML = Sizzle.isXML = function( elem ) { + var namespace = elem && elem.namespaceURI, + docElem = elem && ( elem.ownerDocument || elem ).documentElement; + + // Support: IE <=8 + // Assume HTML when documentElement doesn't yet exist, such as inside loading iframes + // https://bugs.jquery.com/ticket/4833 + return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" ); +}; + +/** + * Sets document-related variables once based on the current document + * @param {Element|Object} [doc] An element or document object to use to set the document + * @returns {Object} Returns the current document + */ +setDocument = Sizzle.setDocument = function( node ) { + var hasCompare, subWindow, + doc = node ? node.ownerDocument || node : preferredDoc; + + // Return early if doc is invalid or already selected + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) { + return document; + } + + // Update global variables + document = doc; + docElem = document.documentElement; + documentIsHTML = !isXML( document ); + + // Support: IE 9 - 11+, Edge 12 - 18+ + // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936) + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( preferredDoc != document && + ( subWindow = document.defaultView ) && subWindow.top !== subWindow ) { + + // Support: IE 11, Edge + if ( subWindow.addEventListener ) { + subWindow.addEventListener( "unload", unloadHandler, false ); + + // Support: IE 9 - 10 only + } else if ( subWindow.attachEvent ) { + subWindow.attachEvent( "onunload", unloadHandler ); + } + } + + // Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only, + // Safari 4 - 5 only, Opera <=11.6 - 12.x only + // IE/Edge & older browsers don't support the :scope pseudo-class. + // Support: Safari 6.0 only + // Safari 6.0 supports :scope but it's an alias of :root there. + support.scope = assert( function( el ) { + docElem.appendChild( el ).appendChild( document.createElement( "div" ) ); + return typeof el.querySelectorAll !== "undefined" && + !el.querySelectorAll( ":scope fieldset div" ).length; + } ); + + /* Attributes + ---------------------------------------------------------------------- */ + + // Support: IE<8 + // Verify that getAttribute really returns attributes and not properties + // (excepting IE8 booleans) + support.attributes = assert( function( el ) { + el.className = "i"; + return !el.getAttribute( "className" ); + } ); + + /* getElement(s)By* + ---------------------------------------------------------------------- */ + + // Check if getElementsByTagName("*") returns only elements + support.getElementsByTagName = assert( function( el ) { + el.appendChild( document.createComment( "" ) ); + return !el.getElementsByTagName( "*" ).length; + } ); + + // Support: IE<9 + support.getElementsByClassName = rnative.test( document.getElementsByClassName ); + + // Support: IE<10 + // Check if getElementById returns elements by name + // The broken getElementById methods don't pick up programmatically-set names, + // so use a roundabout getElementsByName test + support.getById = assert( function( el ) { + docElem.appendChild( el ).id = expando; + return !document.getElementsByName || !document.getElementsByName( expando ).length; + } ); + + // ID filter and find + if ( support.getById ) { + Expr.filter[ "ID" ] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + return elem.getAttribute( "id" ) === attrId; + }; + }; + Expr.find[ "ID" ] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var elem = context.getElementById( id ); + return elem ? [ elem ] : []; + } + }; + } else { + Expr.filter[ "ID" ] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + var node = typeof elem.getAttributeNode !== "undefined" && + elem.getAttributeNode( "id" ); + return node && node.value === attrId; + }; + }; + + // Support: IE 6 - 7 only + // getElementById is not reliable as a find shortcut + Expr.find[ "ID" ] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var node, i, elems, + elem = context.getElementById( id ); + + if ( elem ) { + + // Verify the id attribute + node = elem.getAttributeNode( "id" ); + if ( node && node.value === id ) { + return [ elem ]; + } + + // Fall back on getElementsByName + elems = context.getElementsByName( id ); + i = 0; + while ( ( elem = elems[ i++ ] ) ) { + node = elem.getAttributeNode( "id" ); + if ( node && node.value === id ) { + return [ elem ]; + } + } + } + + return []; + } + }; + } + + // Tag + Expr.find[ "TAG" ] = support.getElementsByTagName ? + function( tag, context ) { + if ( typeof context.getElementsByTagName !== "undefined" ) { + return context.getElementsByTagName( tag ); + + // DocumentFragment nodes don't have gEBTN + } else if ( support.qsa ) { + return context.querySelectorAll( tag ); + } + } : + + function( tag, context ) { + var elem, + tmp = [], + i = 0, + + // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too + results = context.getElementsByTagName( tag ); + + // Filter out possible comments + if ( tag === "*" ) { + while ( ( elem = results[ i++ ] ) ) { + if ( elem.nodeType === 1 ) { + tmp.push( elem ); + } + } + + return tmp; + } + return results; + }; + + // Class + Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) { + if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) { + return context.getElementsByClassName( className ); + } + }; + + /* QSA/matchesSelector + ---------------------------------------------------------------------- */ + + // QSA and matchesSelector support + + // matchesSelector(:active) reports false when true (IE9/Opera 11.5) + rbuggyMatches = []; + + // qSa(:focus) reports false when true (Chrome 21) + // We allow this because of a bug in IE8/9 that throws an error + // whenever `document.activeElement` is accessed on an iframe + // So, we allow :focus to pass through QSA all the time to avoid the IE error + // See https://bugs.jquery.com/ticket/13378 + rbuggyQSA = []; + + if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) { + + // Build QSA regex + // Regex strategy adopted from Diego Perini + assert( function( el ) { + + var input; + + // Select is set to empty string on purpose + // This is to test IE's treatment of not explicitly + // setting a boolean content attribute, + // since its presence should be enough + // https://bugs.jquery.com/ticket/12359 + docElem.appendChild( el ).innerHTML = "" + + ""; + + // Support: IE8, Opera 11-12.16 + // Nothing should be selected when empty strings follow ^= or $= or *= + // The test attribute must be unknown in Opera but "safe" for WinRT + // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section + if ( el.querySelectorAll( "[msallowcapture^='']" ).length ) { + rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" ); + } + + // Support: IE8 + // Boolean attributes and "value" are not treated correctly + if ( !el.querySelectorAll( "[selected]" ).length ) { + rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); + } + + // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+ + if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) { + rbuggyQSA.push( "~=" ); + } + + // Support: IE 11+, Edge 15 - 18+ + // IE 11/Edge don't find elements on a `[name='']` query in some cases. + // Adding a temporary attribute to the document before the selection works + // around the issue. + // Interestingly, IE 10 & older don't seem to have the issue. + input = document.createElement( "input" ); + input.setAttribute( "name", "" ); + el.appendChild( input ); + if ( !el.querySelectorAll( "[name='']" ).length ) { + rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" + + whitespace + "*(?:''|\"\")" ); + } + + // Webkit/Opera - :checked should return selected option elements + // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked + // IE8 throws error here and will not see later tests + if ( !el.querySelectorAll( ":checked" ).length ) { + rbuggyQSA.push( ":checked" ); + } + + // Support: Safari 8+, iOS 8+ + // https://bugs.webkit.org/show_bug.cgi?id=136851 + // In-page `selector#id sibling-combinator selector` fails + if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) { + rbuggyQSA.push( ".#.+[+~]" ); + } + + // Support: Firefox <=3.6 - 5 only + // Old Firefox doesn't throw on a badly-escaped identifier. + el.querySelectorAll( "\\\f" ); + rbuggyQSA.push( "[\\r\\n\\f]" ); + } ); + + assert( function( el ) { + el.innerHTML = "" + + ""; + + // Support: Windows 8 Native Apps + // The type and name attributes are restricted during .innerHTML assignment + var input = document.createElement( "input" ); + input.setAttribute( "type", "hidden" ); + el.appendChild( input ).setAttribute( "name", "D" ); + + // Support: IE8 + // Enforce case-sensitivity of name attribute + if ( el.querySelectorAll( "[name=d]" ).length ) { + rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); + } + + // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled) + // IE8 throws error here and will not see later tests + if ( el.querySelectorAll( ":enabled" ).length !== 2 ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + // Support: IE9-11+ + // IE's :disabled selector does not pick up the children of disabled fieldsets + docElem.appendChild( el ).disabled = true; + if ( el.querySelectorAll( ":disabled" ).length !== 2 ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + // Support: Opera 10 - 11 only + // Opera 10-11 does not throw on post-comma invalid pseudos + el.querySelectorAll( "*,:x" ); + rbuggyQSA.push( ",.*:" ); + } ); + } + + if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches || + docElem.webkitMatchesSelector || + docElem.mozMatchesSelector || + docElem.oMatchesSelector || + docElem.msMatchesSelector ) ) ) ) { + + assert( function( el ) { + + // Check to see if it's possible to do matchesSelector + // on a disconnected node (IE 9) + support.disconnectedMatch = matches.call( el, "*" ); + + // This should fail with an exception + // Gecko does not error, returns false instead + matches.call( el, "[s!='']:x" ); + rbuggyMatches.push( "!=", pseudos ); + } ); + } + + rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) ); + rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) ); + + /* Contains + ---------------------------------------------------------------------- */ + hasCompare = rnative.test( docElem.compareDocumentPosition ); + + // Element contains another + // Purposefully self-exclusive + // As in, an element does not contain itself + contains = hasCompare || rnative.test( docElem.contains ) ? + function( a, b ) { + var adown = a.nodeType === 9 ? a.documentElement : a, + bup = b && b.parentNode; + return a === bup || !!( bup && bup.nodeType === 1 && ( + adown.contains ? + adown.contains( bup ) : + a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 + ) ); + } : + function( a, b ) { + if ( b ) { + while ( ( b = b.parentNode ) ) { + if ( b === a ) { + return true; + } + } + } + return false; + }; + + /* Sorting + ---------------------------------------------------------------------- */ + + // Document order sorting + sortOrder = hasCompare ? + function( a, b ) { + + // Flag for duplicate removal + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + // Sort on method existence if only one input has compareDocumentPosition + var compare = !a.compareDocumentPosition - !b.compareDocumentPosition; + if ( compare ) { + return compare; + } + + // Calculate position if both inputs belong to the same document + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ? + a.compareDocumentPosition( b ) : + + // Otherwise we know they are disconnected + 1; + + // Disconnected nodes + if ( compare & 1 || + ( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) { + + // Choose the first element that is related to our preferred document + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( a == document || a.ownerDocument == preferredDoc && + contains( preferredDoc, a ) ) { + return -1; + } + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( b == document || b.ownerDocument == preferredDoc && + contains( preferredDoc, b ) ) { + return 1; + } + + // Maintain original order + return sortInput ? + ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : + 0; + } + + return compare & 4 ? -1 : 1; + } : + function( a, b ) { + + // Exit early if the nodes are identical + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + var cur, + i = 0, + aup = a.parentNode, + bup = b.parentNode, + ap = [ a ], + bp = [ b ]; + + // Parentless nodes are either documents or disconnected + if ( !aup || !bup ) { + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + /* eslint-disable eqeqeq */ + return a == document ? -1 : + b == document ? 1 : + /* eslint-enable eqeqeq */ + aup ? -1 : + bup ? 1 : + sortInput ? + ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : + 0; + + // If the nodes are siblings, we can do a quick check + } else if ( aup === bup ) { + return siblingCheck( a, b ); + } + + // Otherwise we need full lists of their ancestors for comparison + cur = a; + while ( ( cur = cur.parentNode ) ) { + ap.unshift( cur ); + } + cur = b; + while ( ( cur = cur.parentNode ) ) { + bp.unshift( cur ); + } + + // Walk down the tree looking for a discrepancy + while ( ap[ i ] === bp[ i ] ) { + i++; + } + + return i ? + + // Do a sibling check if the nodes have a common ancestor + siblingCheck( ap[ i ], bp[ i ] ) : + + // Otherwise nodes in our document sort first + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + /* eslint-disable eqeqeq */ + ap[ i ] == preferredDoc ? -1 : + bp[ i ] == preferredDoc ? 1 : + /* eslint-enable eqeqeq */ + 0; + }; + + return document; +}; + +Sizzle.matches = function( expr, elements ) { + return Sizzle( expr, null, null, elements ); +}; + +Sizzle.matchesSelector = function( elem, expr ) { + setDocument( elem ); + + if ( support.matchesSelector && documentIsHTML && + !nonnativeSelectorCache[ expr + " " ] && + ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && + ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) { + + try { + var ret = matches.call( elem, expr ); + + // IE 9's matchesSelector returns false on disconnected nodes + if ( ret || support.disconnectedMatch || + + // As well, disconnected nodes are said to be in a document + // fragment in IE 9 + elem.document && elem.document.nodeType !== 11 ) { + return ret; + } + } catch ( e ) { + nonnativeSelectorCache( expr, true ); + } + } + + return Sizzle( expr, document, null, [ elem ] ).length > 0; +}; + +Sizzle.contains = function( context, elem ) { + + // Set document vars if needed + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( ( context.ownerDocument || context ) != document ) { + setDocument( context ); + } + return contains( context, elem ); +}; + +Sizzle.attr = function( elem, name ) { + + // Set document vars if needed + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( ( elem.ownerDocument || elem ) != document ) { + setDocument( elem ); + } + + var fn = Expr.attrHandle[ name.toLowerCase() ], + + // Don't get fooled by Object.prototype properties (jQuery #13807) + val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? + fn( elem, name, !documentIsHTML ) : + undefined; + + return val !== undefined ? + val : + support.attributes || !documentIsHTML ? + elem.getAttribute( name ) : + ( val = elem.getAttributeNode( name ) ) && val.specified ? + val.value : + null; +}; + +Sizzle.escape = function( sel ) { + return ( sel + "" ).replace( rcssescape, fcssescape ); +}; + +Sizzle.error = function( msg ) { + throw new Error( "Syntax error, unrecognized expression: " + msg ); +}; + +/** + * Document sorting and removing duplicates + * @param {ArrayLike} results + */ +Sizzle.uniqueSort = function( results ) { + var elem, + duplicates = [], + j = 0, + i = 0; + + // Unless we *know* we can detect duplicates, assume their presence + hasDuplicate = !support.detectDuplicates; + sortInput = !support.sortStable && results.slice( 0 ); + results.sort( sortOrder ); + + if ( hasDuplicate ) { + while ( ( elem = results[ i++ ] ) ) { + if ( elem === results[ i ] ) { + j = duplicates.push( i ); + } + } + while ( j-- ) { + results.splice( duplicates[ j ], 1 ); + } + } + + // Clear input after sorting to release objects + // See https://github.com/jquery/sizzle/pull/225 + sortInput = null; + + return results; +}; + +/** + * Utility function for retrieving the text value of an array of DOM nodes + * @param {Array|Element} elem + */ +getText = Sizzle.getText = function( elem ) { + var node, + ret = "", + i = 0, + nodeType = elem.nodeType; + + if ( !nodeType ) { + + // If no nodeType, this is expected to be an array + while ( ( node = elem[ i++ ] ) ) { + + // Do not traverse comment nodes + ret += getText( node ); + } + } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { + + // Use textContent for elements + // innerText usage removed for consistency of new lines (jQuery #11153) + if ( typeof elem.textContent === "string" ) { + return elem.textContent; + } else { + + // Traverse its children + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + ret += getText( elem ); + } + } + } else if ( nodeType === 3 || nodeType === 4 ) { + return elem.nodeValue; + } + + // Do not include comment or processing instruction nodes + + return ret; +}; + +Expr = Sizzle.selectors = { + + // Can be adjusted by the user + cacheLength: 50, + + createPseudo: markFunction, + + match: matchExpr, + + attrHandle: {}, + + find: {}, + + relative: { + ">": { dir: "parentNode", first: true }, + " ": { dir: "parentNode" }, + "+": { dir: "previousSibling", first: true }, + "~": { dir: "previousSibling" } + }, + + preFilter: { + "ATTR": function( match ) { + match[ 1 ] = match[ 1 ].replace( runescape, funescape ); + + // Move the given value to match[3] whether quoted or unquoted + match[ 3 ] = ( match[ 3 ] || match[ 4 ] || + match[ 5 ] || "" ).replace( runescape, funescape ); + + if ( match[ 2 ] === "~=" ) { + match[ 3 ] = " " + match[ 3 ] + " "; + } + + return match.slice( 0, 4 ); + }, + + "CHILD": function( match ) { + + /* matches from matchExpr["CHILD"] + 1 type (only|nth|...) + 2 what (child|of-type) + 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...) + 4 xn-component of xn+y argument ([+-]?\d*n|) + 5 sign of xn-component + 6 x of xn-component + 7 sign of y-component + 8 y of y-component + */ + match[ 1 ] = match[ 1 ].toLowerCase(); + + if ( match[ 1 ].slice( 0, 3 ) === "nth" ) { + + // nth-* requires argument + if ( !match[ 3 ] ) { + Sizzle.error( match[ 0 ] ); + } + + // numeric x and y parameters for Expr.filter.CHILD + // remember that false/true cast respectively to 0/1 + match[ 4 ] = +( match[ 4 ] ? + match[ 5 ] + ( match[ 6 ] || 1 ) : + 2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) ); + match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" ); + + // other types prohibit arguments + } else if ( match[ 3 ] ) { + Sizzle.error( match[ 0 ] ); + } + + return match; + }, + + "PSEUDO": function( match ) { + var excess, + unquoted = !match[ 6 ] && match[ 2 ]; + + if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) { + return null; + } + + // Accept quoted arguments as-is + if ( match[ 3 ] ) { + match[ 2 ] = match[ 4 ] || match[ 5 ] || ""; + + // Strip excess characters from unquoted arguments + } else if ( unquoted && rpseudo.test( unquoted ) && + + // Get excess from tokenize (recursively) + ( excess = tokenize( unquoted, true ) ) && + + // advance to the next closing parenthesis + ( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) { + + // excess is a negative index + match[ 0 ] = match[ 0 ].slice( 0, excess ); + match[ 2 ] = unquoted.slice( 0, excess ); + } + + // Return only captures needed by the pseudo filter method (type and argument) + return match.slice( 0, 3 ); + } + }, + + filter: { + + "TAG": function( nodeNameSelector ) { + var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); + return nodeNameSelector === "*" ? + function() { + return true; + } : + function( elem ) { + return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; + }; + }, + + "CLASS": function( className ) { + var pattern = classCache[ className + " " ]; + + return pattern || + ( pattern = new RegExp( "(^|" + whitespace + + ")" + className + "(" + whitespace + "|$)" ) ) && classCache( + className, function( elem ) { + return pattern.test( + typeof elem.className === "string" && elem.className || + typeof elem.getAttribute !== "undefined" && + elem.getAttribute( "class" ) || + "" + ); + } ); + }, + + "ATTR": function( name, operator, check ) { + return function( elem ) { + var result = Sizzle.attr( elem, name ); + + if ( result == null ) { + return operator === "!="; + } + if ( !operator ) { + return true; + } + + result += ""; + + /* eslint-disable max-len */ + + return operator === "=" ? result === check : + operator === "!=" ? result !== check : + operator === "^=" ? check && result.indexOf( check ) === 0 : + operator === "*=" ? check && result.indexOf( check ) > -1 : + operator === "$=" ? check && result.slice( -check.length ) === check : + operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 : + operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : + false; + /* eslint-enable max-len */ + + }; + }, + + "CHILD": function( type, what, _argument, first, last ) { + var simple = type.slice( 0, 3 ) !== "nth", + forward = type.slice( -4 ) !== "last", + ofType = what === "of-type"; + + return first === 1 && last === 0 ? + + // Shortcut for :nth-*(n) + function( elem ) { + return !!elem.parentNode; + } : + + function( elem, _context, xml ) { + var cache, uniqueCache, outerCache, node, nodeIndex, start, + dir = simple !== forward ? "nextSibling" : "previousSibling", + parent = elem.parentNode, + name = ofType && elem.nodeName.toLowerCase(), + useCache = !xml && !ofType, + diff = false; + + if ( parent ) { + + // :(first|last|only)-(child|of-type) + if ( simple ) { + while ( dir ) { + node = elem; + while ( ( node = node[ dir ] ) ) { + if ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) { + + return false; + } + } + + // Reverse direction for :only-* (if we haven't yet done so) + start = dir = type === "only" && !start && "nextSibling"; + } + return true; + } + + start = [ forward ? parent.firstChild : parent.lastChild ]; + + // non-xml :nth-child(...) stores cache data on `parent` + if ( forward && useCache ) { + + // Seek `elem` from a previously-cached index + + // ...in a gzip-friendly way + node = parent; + outerCache = node[ expando ] || ( node[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + ( outerCache[ node.uniqueID ] = {} ); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex && cache[ 2 ]; + node = nodeIndex && parent.childNodes[ nodeIndex ]; + + while ( ( node = ++nodeIndex && node && node[ dir ] || + + // Fallback to seeking `elem` from the start + ( diff = nodeIndex = 0 ) || start.pop() ) ) { + + // When found, cache indexes on `parent` and break + if ( node.nodeType === 1 && ++diff && node === elem ) { + uniqueCache[ type ] = [ dirruns, nodeIndex, diff ]; + break; + } + } + + } else { + + // Use previously-cached element index if available + if ( useCache ) { + + // ...in a gzip-friendly way + node = elem; + outerCache = node[ expando ] || ( node[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + ( outerCache[ node.uniqueID ] = {} ); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex; + } + + // xml :nth-child(...) + // or :nth-last-child(...) or :nth(-last)?-of-type(...) + if ( diff === false ) { + + // Use the same loop as above to seek `elem` from the start + while ( ( node = ++nodeIndex && node && node[ dir ] || + ( diff = nodeIndex = 0 ) || start.pop() ) ) { + + if ( ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) && + ++diff ) { + + // Cache the index of each encountered element + if ( useCache ) { + outerCache = node[ expando ] || + ( node[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + ( outerCache[ node.uniqueID ] = {} ); + + uniqueCache[ type ] = [ dirruns, diff ]; + } + + if ( node === elem ) { + break; + } + } + } + } + } + + // Incorporate the offset, then check against cycle size + diff -= last; + return diff === first || ( diff % first === 0 && diff / first >= 0 ); + } + }; + }, + + "PSEUDO": function( pseudo, argument ) { + + // pseudo-class names are case-insensitive + // http://www.w3.org/TR/selectors/#pseudo-classes + // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters + // Remember that setFilters inherits from pseudos + var args, + fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] || + Sizzle.error( "unsupported pseudo: " + pseudo ); + + // The user may use createPseudo to indicate that + // arguments are needed to create the filter function + // just as Sizzle does + if ( fn[ expando ] ) { + return fn( argument ); + } + + // But maintain support for old signatures + if ( fn.length > 1 ) { + args = [ pseudo, pseudo, "", argument ]; + return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? + markFunction( function( seed, matches ) { + var idx, + matched = fn( seed, argument ), + i = matched.length; + while ( i-- ) { + idx = indexOf( seed, matched[ i ] ); + seed[ idx ] = !( matches[ idx ] = matched[ i ] ); + } + } ) : + function( elem ) { + return fn( elem, 0, args ); + }; + } + + return fn; + } + }, + + pseudos: { + + // Potentially complex pseudos + "not": markFunction( function( selector ) { + + // Trim the selector passed to compile + // to avoid treating leading and trailing + // spaces as combinators + var input = [], + results = [], + matcher = compile( selector.replace( rtrim, "$1" ) ); + + return matcher[ expando ] ? + markFunction( function( seed, matches, _context, xml ) { + var elem, + unmatched = matcher( seed, null, xml, [] ), + i = seed.length; + + // Match elements unmatched by `matcher` + while ( i-- ) { + if ( ( elem = unmatched[ i ] ) ) { + seed[ i ] = !( matches[ i ] = elem ); + } + } + } ) : + function( elem, _context, xml ) { + input[ 0 ] = elem; + matcher( input, null, xml, results ); + + // Don't keep the element (issue #299) + input[ 0 ] = null; + return !results.pop(); + }; + } ), + + "has": markFunction( function( selector ) { + return function( elem ) { + return Sizzle( selector, elem ).length > 0; + }; + } ), + + "contains": markFunction( function( text ) { + text = text.replace( runescape, funescape ); + return function( elem ) { + return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1; + }; + } ), + + // "Whether an element is represented by a :lang() selector + // is based solely on the element's language value + // being equal to the identifier C, + // or beginning with the identifier C immediately followed by "-". + // The matching of C against the element's language value is performed case-insensitively. + // The identifier C does not have to be a valid language name." + // http://www.w3.org/TR/selectors/#lang-pseudo + "lang": markFunction( function( lang ) { + + // lang value must be a valid identifier + if ( !ridentifier.test( lang || "" ) ) { + Sizzle.error( "unsupported lang: " + lang ); + } + lang = lang.replace( runescape, funescape ).toLowerCase(); + return function( elem ) { + var elemLang; + do { + if ( ( elemLang = documentIsHTML ? + elem.lang : + elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) { + + elemLang = elemLang.toLowerCase(); + return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; + } + } while ( ( elem = elem.parentNode ) && elem.nodeType === 1 ); + return false; + }; + } ), + + // Miscellaneous + "target": function( elem ) { + var hash = window.location && window.location.hash; + return hash && hash.slice( 1 ) === elem.id; + }, + + "root": function( elem ) { + return elem === docElem; + }, + + "focus": function( elem ) { + return elem === document.activeElement && + ( !document.hasFocus || document.hasFocus() ) && + !!( elem.type || elem.href || ~elem.tabIndex ); + }, + + // Boolean properties + "enabled": createDisabledPseudo( false ), + "disabled": createDisabledPseudo( true ), + + "checked": function( elem ) { + + // In CSS3, :checked should return both checked and selected elements + // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked + var nodeName = elem.nodeName.toLowerCase(); + return ( nodeName === "input" && !!elem.checked ) || + ( nodeName === "option" && !!elem.selected ); + }, + + "selected": function( elem ) { + + // Accessing this property makes selected-by-default + // options in Safari work properly + if ( elem.parentNode ) { + // eslint-disable-next-line no-unused-expressions + elem.parentNode.selectedIndex; + } + + return elem.selected === true; + }, + + // Contents + "empty": function( elem ) { + + // http://www.w3.org/TR/selectors/#empty-pseudo + // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5), + // but not by others (comment: 8; processing instruction: 7; etc.) + // nodeType < 6 works because attributes (2) do not appear as children + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + if ( elem.nodeType < 6 ) { + return false; + } + } + return true; + }, + + "parent": function( elem ) { + return !Expr.pseudos[ "empty" ]( elem ); + }, + + // Element/input types + "header": function( elem ) { + return rheader.test( elem.nodeName ); + }, + + "input": function( elem ) { + return rinputs.test( elem.nodeName ); + }, + + "button": function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === "button" || name === "button"; + }, + + "text": function( elem ) { + var attr; + return elem.nodeName.toLowerCase() === "input" && + elem.type === "text" && + + // Support: IE<8 + // New HTML5 attribute values (e.g., "search") appear with elem.type === "text" + ( ( attr = elem.getAttribute( "type" ) ) == null || + attr.toLowerCase() === "text" ); + }, + + // Position-in-collection + "first": createPositionalPseudo( function() { + return [ 0 ]; + } ), + + "last": createPositionalPseudo( function( _matchIndexes, length ) { + return [ length - 1 ]; + } ), + + "eq": createPositionalPseudo( function( _matchIndexes, length, argument ) { + return [ argument < 0 ? argument + length : argument ]; + } ), + + "even": createPositionalPseudo( function( matchIndexes, length ) { + var i = 0; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + } ), + + "odd": createPositionalPseudo( function( matchIndexes, length ) { + var i = 1; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + } ), + + "lt": createPositionalPseudo( function( matchIndexes, length, argument ) { + var i = argument < 0 ? + argument + length : + argument > length ? + length : + argument; + for ( ; --i >= 0; ) { + matchIndexes.push( i ); + } + return matchIndexes; + } ), + + "gt": createPositionalPseudo( function( matchIndexes, length, argument ) { + var i = argument < 0 ? argument + length : argument; + for ( ; ++i < length; ) { + matchIndexes.push( i ); + } + return matchIndexes; + } ) + } +}; + +Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ]; + +// Add button/input type pseudos +for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { + Expr.pseudos[ i ] = createInputPseudo( i ); +} +for ( i in { submit: true, reset: true } ) { + Expr.pseudos[ i ] = createButtonPseudo( i ); +} + +// Easy API for creating new setFilters +function setFilters() {} +setFilters.prototype = Expr.filters = Expr.pseudos; +Expr.setFilters = new setFilters(); + +tokenize = Sizzle.tokenize = function( selector, parseOnly ) { + var matched, match, tokens, type, + soFar, groups, preFilters, + cached = tokenCache[ selector + " " ]; + + if ( cached ) { + return parseOnly ? 0 : cached.slice( 0 ); + } + + soFar = selector; + groups = []; + preFilters = Expr.preFilter; + + while ( soFar ) { + + // Comma and first run + if ( !matched || ( match = rcomma.exec( soFar ) ) ) { + if ( match ) { + + // Don't consume trailing commas as valid + soFar = soFar.slice( match[ 0 ].length ) || soFar; + } + groups.push( ( tokens = [] ) ); + } + + matched = false; + + // Combinators + if ( ( match = rcombinators.exec( soFar ) ) ) { + matched = match.shift(); + tokens.push( { + value: matched, + + // Cast descendant combinators to space + type: match[ 0 ].replace( rtrim, " " ) + } ); + soFar = soFar.slice( matched.length ); + } + + // Filters + for ( type in Expr.filter ) { + if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] || + ( match = preFilters[ type ]( match ) ) ) ) { + matched = match.shift(); + tokens.push( { + value: matched, + type: type, + matches: match + } ); + soFar = soFar.slice( matched.length ); + } + } + + if ( !matched ) { + break; + } + } + + // Return the length of the invalid excess + // if we're just parsing + // Otherwise, throw an error or return tokens + return parseOnly ? + soFar.length : + soFar ? + Sizzle.error( selector ) : + + // Cache the tokens + tokenCache( selector, groups ).slice( 0 ); +}; + +function toSelector( tokens ) { + var i = 0, + len = tokens.length, + selector = ""; + for ( ; i < len; i++ ) { + selector += tokens[ i ].value; + } + return selector; +} + +function addCombinator( matcher, combinator, base ) { + var dir = combinator.dir, + skip = combinator.next, + key = skip || dir, + checkNonElements = base && key === "parentNode", + doneName = done++; + + return combinator.first ? + + // Check against closest ancestor/preceding element + function( elem, context, xml ) { + while ( ( elem = elem[ dir ] ) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + return matcher( elem, context, xml ); + } + } + return false; + } : + + // Check against all ancestor/preceding elements + function( elem, context, xml ) { + var oldCache, uniqueCache, outerCache, + newCache = [ dirruns, doneName ]; + + // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching + if ( xml ) { + while ( ( elem = elem[ dir ] ) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + if ( matcher( elem, context, xml ) ) { + return true; + } + } + } + } else { + while ( ( elem = elem[ dir ] ) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + outerCache = elem[ expando ] || ( elem[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ elem.uniqueID ] || + ( outerCache[ elem.uniqueID ] = {} ); + + if ( skip && skip === elem.nodeName.toLowerCase() ) { + elem = elem[ dir ] || elem; + } else if ( ( oldCache = uniqueCache[ key ] ) && + oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) { + + // Assign to newCache so results back-propagate to previous elements + return ( newCache[ 2 ] = oldCache[ 2 ] ); + } else { + + // Reuse newcache so results back-propagate to previous elements + uniqueCache[ key ] = newCache; + + // A match means we're done; a fail means we have to keep checking + if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) { + return true; + } + } + } + } + } + return false; + }; +} + +function elementMatcher( matchers ) { + return matchers.length > 1 ? + function( elem, context, xml ) { + var i = matchers.length; + while ( i-- ) { + if ( !matchers[ i ]( elem, context, xml ) ) { + return false; + } + } + return true; + } : + matchers[ 0 ]; +} + +function multipleContexts( selector, contexts, results ) { + var i = 0, + len = contexts.length; + for ( ; i < len; i++ ) { + Sizzle( selector, contexts[ i ], results ); + } + return results; +} + +function condense( unmatched, map, filter, context, xml ) { + var elem, + newUnmatched = [], + i = 0, + len = unmatched.length, + mapped = map != null; + + for ( ; i < len; i++ ) { + if ( ( elem = unmatched[ i ] ) ) { + if ( !filter || filter( elem, context, xml ) ) { + newUnmatched.push( elem ); + if ( mapped ) { + map.push( i ); + } + } + } + } + + return newUnmatched; +} + +function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) { + if ( postFilter && !postFilter[ expando ] ) { + postFilter = setMatcher( postFilter ); + } + if ( postFinder && !postFinder[ expando ] ) { + postFinder = setMatcher( postFinder, postSelector ); + } + return markFunction( function( seed, results, context, xml ) { + var temp, i, elem, + preMap = [], + postMap = [], + preexisting = results.length, + + // Get initial elements from seed or context + elems = seed || multipleContexts( + selector || "*", + context.nodeType ? [ context ] : context, + [] + ), + + // Prefilter to get matcher input, preserving a map for seed-results synchronization + matcherIn = preFilter && ( seed || !selector ) ? + condense( elems, preMap, preFilter, context, xml ) : + elems, + + matcherOut = matcher ? + + // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results, + postFinder || ( seed ? preFilter : preexisting || postFilter ) ? + + // ...intermediate processing is necessary + [] : + + // ...otherwise use results directly + results : + matcherIn; + + // Find primary matches + if ( matcher ) { + matcher( matcherIn, matcherOut, context, xml ); + } + + // Apply postFilter + if ( postFilter ) { + temp = condense( matcherOut, postMap ); + postFilter( temp, [], context, xml ); + + // Un-match failing elements by moving them back to matcherIn + i = temp.length; + while ( i-- ) { + if ( ( elem = temp[ i ] ) ) { + matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem ); + } + } + } + + if ( seed ) { + if ( postFinder || preFilter ) { + if ( postFinder ) { + + // Get the final matcherOut by condensing this intermediate into postFinder contexts + temp = []; + i = matcherOut.length; + while ( i-- ) { + if ( ( elem = matcherOut[ i ] ) ) { + + // Restore matcherIn since elem is not yet a final match + temp.push( ( matcherIn[ i ] = elem ) ); + } + } + postFinder( null, ( matcherOut = [] ), temp, xml ); + } + + // Move matched elements from seed to results to keep them synchronized + i = matcherOut.length; + while ( i-- ) { + if ( ( elem = matcherOut[ i ] ) && + ( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) { + + seed[ temp ] = !( results[ temp ] = elem ); + } + } + } + + // Add elements to results, through postFinder if defined + } else { + matcherOut = condense( + matcherOut === results ? + matcherOut.splice( preexisting, matcherOut.length ) : + matcherOut + ); + if ( postFinder ) { + postFinder( null, results, matcherOut, xml ); + } else { + push.apply( results, matcherOut ); + } + } + } ); +} + +function matcherFromTokens( tokens ) { + var checkContext, matcher, j, + len = tokens.length, + leadingRelative = Expr.relative[ tokens[ 0 ].type ], + implicitRelative = leadingRelative || Expr.relative[ " " ], + i = leadingRelative ? 1 : 0, + + // The foundational matcher ensures that elements are reachable from top-level context(s) + matchContext = addCombinator( function( elem ) { + return elem === checkContext; + }, implicitRelative, true ), + matchAnyContext = addCombinator( function( elem ) { + return indexOf( checkContext, elem ) > -1; + }, implicitRelative, true ), + matchers = [ function( elem, context, xml ) { + var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( + ( checkContext = context ).nodeType ? + matchContext( elem, context, xml ) : + matchAnyContext( elem, context, xml ) ); + + // Avoid hanging onto element (issue #299) + checkContext = null; + return ret; + } ]; + + for ( ; i < len; i++ ) { + if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) { + matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ]; + } else { + matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches ); + + // Return special upon seeing a positional matcher + if ( matcher[ expando ] ) { + + // Find the next relative operator (if any) for proper handling + j = ++i; + for ( ; j < len; j++ ) { + if ( Expr.relative[ tokens[ j ].type ] ) { + break; + } + } + return setMatcher( + i > 1 && elementMatcher( matchers ), + i > 1 && toSelector( + + // If the preceding token was a descendant combinator, insert an implicit any-element `*` + tokens + .slice( 0, i - 1 ) + .concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } ) + ).replace( rtrim, "$1" ), + matcher, + i < j && matcherFromTokens( tokens.slice( i, j ) ), + j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ), + j < len && toSelector( tokens ) + ); + } + matchers.push( matcher ); + } + } + + return elementMatcher( matchers ); +} + +function matcherFromGroupMatchers( elementMatchers, setMatchers ) { + var bySet = setMatchers.length > 0, + byElement = elementMatchers.length > 0, + superMatcher = function( seed, context, xml, results, outermost ) { + var elem, j, matcher, + matchedCount = 0, + i = "0", + unmatched = seed && [], + setMatched = [], + contextBackup = outermostContext, + + // We must always have either seed elements or outermost context + elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ), + + // Use integer dirruns iff this is the outermost matcher + dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ), + len = elems.length; + + if ( outermost ) { + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + outermostContext = context == document || context || outermost; + } + + // Add elements passing elementMatchers directly to results + // Support: IE<9, Safari + // Tolerate NodeList properties (IE: "length"; Safari: ) matching elements by id + for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) { + if ( byElement && elem ) { + j = 0; + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( !context && elem.ownerDocument != document ) { + setDocument( elem ); + xml = !documentIsHTML; + } + while ( ( matcher = elementMatchers[ j++ ] ) ) { + if ( matcher( elem, context || document, xml ) ) { + results.push( elem ); + break; + } + } + if ( outermost ) { + dirruns = dirrunsUnique; + } + } + + // Track unmatched elements for set filters + if ( bySet ) { + + // They will have gone through all possible matchers + if ( ( elem = !matcher && elem ) ) { + matchedCount--; + } + + // Lengthen the array for every element, matched or not + if ( seed ) { + unmatched.push( elem ); + } + } + } + + // `i` is now the count of elements visited above, and adding it to `matchedCount` + // makes the latter nonnegative. + matchedCount += i; + + // Apply set filters to unmatched elements + // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount` + // equals `i`), unless we didn't visit _any_ elements in the above loop because we have + // no element matchers and no seed. + // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that + // case, which will result in a "00" `matchedCount` that differs from `i` but is also + // numerically zero. + if ( bySet && i !== matchedCount ) { + j = 0; + while ( ( matcher = setMatchers[ j++ ] ) ) { + matcher( unmatched, setMatched, context, xml ); + } + + if ( seed ) { + + // Reintegrate element matches to eliminate the need for sorting + if ( matchedCount > 0 ) { + while ( i-- ) { + if ( !( unmatched[ i ] || setMatched[ i ] ) ) { + setMatched[ i ] = pop.call( results ); + } + } + } + + // Discard index placeholder values to get only actual matches + setMatched = condense( setMatched ); + } + + // Add matches to results + push.apply( results, setMatched ); + + // Seedless set matches succeeding multiple successful matchers stipulate sorting + if ( outermost && !seed && setMatched.length > 0 && + ( matchedCount + setMatchers.length ) > 1 ) { + + Sizzle.uniqueSort( results ); + } + } + + // Override manipulation of globals by nested matchers + if ( outermost ) { + dirruns = dirrunsUnique; + outermostContext = contextBackup; + } + + return unmatched; + }; + + return bySet ? + markFunction( superMatcher ) : + superMatcher; +} + +compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { + var i, + setMatchers = [], + elementMatchers = [], + cached = compilerCache[ selector + " " ]; + + if ( !cached ) { + + // Generate a function of recursive functions that can be used to check each element + if ( !match ) { + match = tokenize( selector ); + } + i = match.length; + while ( i-- ) { + cached = matcherFromTokens( match[ i ] ); + if ( cached[ expando ] ) { + setMatchers.push( cached ); + } else { + elementMatchers.push( cached ); + } + } + + // Cache the compiled function + cached = compilerCache( + selector, + matcherFromGroupMatchers( elementMatchers, setMatchers ) + ); + + // Save selector and tokenization + cached.selector = selector; + } + return cached; +}; + +/** + * A low-level selection function that works with Sizzle's compiled + * selector functions + * @param {String|Function} selector A selector or a pre-compiled + * selector function built with Sizzle.compile + * @param {Element} context + * @param {Array} [results] + * @param {Array} [seed] A set of elements to match against + */ +select = Sizzle.select = function( selector, context, results, seed ) { + var i, tokens, token, type, find, + compiled = typeof selector === "function" && selector, + match = !seed && tokenize( ( selector = compiled.selector || selector ) ); + + results = results || []; + + // Try to minimize operations if there is only one selector in the list and no seed + // (the latter of which guarantees us context) + if ( match.length === 1 ) { + + // Reduce context if the leading compound selector is an ID + tokens = match[ 0 ] = match[ 0 ].slice( 0 ); + if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" && + context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) { + + context = ( Expr.find[ "ID" ]( token.matches[ 0 ] + .replace( runescape, funescape ), context ) || [] )[ 0 ]; + if ( !context ) { + return results; + + // Precompiled matchers will still verify ancestry, so step up a level + } else if ( compiled ) { + context = context.parentNode; + } + + selector = selector.slice( tokens.shift().value.length ); + } + + // Fetch a seed set for right-to-left matching + i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length; + while ( i-- ) { + token = tokens[ i ]; + + // Abort if we hit a combinator + if ( Expr.relative[ ( type = token.type ) ] ) { + break; + } + if ( ( find = Expr.find[ type ] ) ) { + + // Search, expanding context for leading sibling combinators + if ( ( seed = find( + token.matches[ 0 ].replace( runescape, funescape ), + rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) || + context + ) ) ) { + + // If seed is empty or no tokens remain, we can return early + tokens.splice( i, 1 ); + selector = seed.length && toSelector( tokens ); + if ( !selector ) { + push.apply( results, seed ); + return results; + } + + break; + } + } + } + } + + // Compile and execute a filtering function if one is not provided + // Provide `match` to avoid retokenization if we modified the selector above + ( compiled || compile( selector, match ) )( + seed, + context, + !documentIsHTML, + results, + !context || rsibling.test( selector ) && testContext( context.parentNode ) || context + ); + return results; +}; + +// One-time assignments + +// Sort stability +support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando; + +// Support: Chrome 14-35+ +// Always assume duplicates if they aren't passed to the comparison function +support.detectDuplicates = !!hasDuplicate; + +// Initialize against the default document +setDocument(); + +// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27) +// Detached nodes confoundingly follow *each other* +support.sortDetached = assert( function( el ) { + + // Should return 1, but returns 4 (following) + return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1; +} ); + +// Support: IE<8 +// Prevent attribute/property "interpolation" +// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx +if ( !assert( function( el ) { + el.innerHTML = ""; + return el.firstChild.getAttribute( "href" ) === "#"; +} ) ) { + addHandle( "type|href|height|width", function( elem, name, isXML ) { + if ( !isXML ) { + return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); + } + } ); +} + +// Support: IE<9 +// Use defaultValue in place of getAttribute("value") +if ( !support.attributes || !assert( function( el ) { + el.innerHTML = ""; + el.firstChild.setAttribute( "value", "" ); + return el.firstChild.getAttribute( "value" ) === ""; +} ) ) { + addHandle( "value", function( elem, _name, isXML ) { + if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { + return elem.defaultValue; + } + } ); +} + +// Support: IE<9 +// Use getAttributeNode to fetch booleans when getAttribute lies +if ( !assert( function( el ) { + return el.getAttribute( "disabled" ) == null; +} ) ) { + addHandle( booleans, function( elem, name, isXML ) { + var val; + if ( !isXML ) { + return elem[ name ] === true ? name.toLowerCase() : + ( val = elem.getAttributeNode( name ) ) && val.specified ? + val.value : + null; + } + } ); +} + +return Sizzle; + +} )( window ); + + + +jQuery.find = Sizzle; +jQuery.expr = Sizzle.selectors; + +// Deprecated +jQuery.expr[ ":" ] = jQuery.expr.pseudos; +jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort; +jQuery.text = Sizzle.getText; +jQuery.isXMLDoc = Sizzle.isXML; +jQuery.contains = Sizzle.contains; +jQuery.escapeSelector = Sizzle.escape; + + + + +var dir = function( elem, dir, until ) { + var matched = [], + truncate = until !== undefined; + + while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) { + if ( elem.nodeType === 1 ) { + if ( truncate && jQuery( elem ).is( until ) ) { + break; + } + matched.push( elem ); + } + } + return matched; +}; + + +var siblings = function( n, elem ) { + var matched = []; + + for ( ; n; n = n.nextSibling ) { + if ( n.nodeType === 1 && n !== elem ) { + matched.push( n ); + } + } + + return matched; +}; + + +var rneedsContext = jQuery.expr.match.needsContext; + + + +function nodeName( elem, name ) { + + return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase(); + +} +var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i ); + + + +// Implement the identical functionality for filter and not +function winnow( elements, qualifier, not ) { + if ( isFunction( qualifier ) ) { + return jQuery.grep( elements, function( elem, i ) { + return !!qualifier.call( elem, i, elem ) !== not; + } ); + } + + // Single element + if ( qualifier.nodeType ) { + return jQuery.grep( elements, function( elem ) { + return ( elem === qualifier ) !== not; + } ); + } + + // Arraylike of elements (jQuery, arguments, Array) + if ( typeof qualifier !== "string" ) { + return jQuery.grep( elements, function( elem ) { + return ( indexOf.call( qualifier, elem ) > -1 ) !== not; + } ); + } + + // Filtered directly for both simple and complex selectors + return jQuery.filter( qualifier, elements, not ); +} + +jQuery.filter = function( expr, elems, not ) { + var elem = elems[ 0 ]; + + if ( not ) { + expr = ":not(" + expr + ")"; + } + + if ( elems.length === 1 && elem.nodeType === 1 ) { + return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : []; + } + + return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) { + return elem.nodeType === 1; + } ) ); +}; + +jQuery.fn.extend( { + find: function( selector ) { + var i, ret, + len = this.length, + self = this; + + if ( typeof selector !== "string" ) { + return this.pushStack( jQuery( selector ).filter( function() { + for ( i = 0; i < len; i++ ) { + if ( jQuery.contains( self[ i ], this ) ) { + return true; + } + } + } ) ); + } + + ret = this.pushStack( [] ); + + for ( i = 0; i < len; i++ ) { + jQuery.find( selector, self[ i ], ret ); + } + + return len > 1 ? jQuery.uniqueSort( ret ) : ret; + }, + filter: function( selector ) { + return this.pushStack( winnow( this, selector || [], false ) ); + }, + not: function( selector ) { + return this.pushStack( winnow( this, selector || [], true ) ); + }, + is: function( selector ) { + return !!winnow( + this, + + // If this is a positional/relative selector, check membership in the returned set + // so $("p:first").is("p:last") won't return true for a doc with two "p". + typeof selector === "string" && rneedsContext.test( selector ) ? + jQuery( selector ) : + selector || [], + false + ).length; + } +} ); + + +// Initialize a jQuery object + + +// A central reference to the root jQuery(document) +var rootjQuery, + + // A simple way to check for HTML strings + // Prioritize #id over to avoid XSS via location.hash (#9521) + // Strict HTML recognition (#11290: must start with <) + // Shortcut simple #id case for speed + rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/, + + init = jQuery.fn.init = function( selector, context, root ) { + var match, elem; + + // HANDLE: $(""), $(null), $(undefined), $(false) + if ( !selector ) { + return this; + } + + // Method init() accepts an alternate rootjQuery + // so migrate can support jQuery.sub (gh-2101) + root = root || rootjQuery; + + // Handle HTML strings + if ( typeof selector === "string" ) { + if ( selector[ 0 ] === "<" && + selector[ selector.length - 1 ] === ">" && + selector.length >= 3 ) { + + // Assume that strings that start and end with <> are HTML and skip the regex check + match = [ null, selector, null ]; + + } else { + match = rquickExpr.exec( selector ); + } + + // Match html or make sure no context is specified for #id + if ( match && ( match[ 1 ] || !context ) ) { + + // HANDLE: $(html) -> $(array) + if ( match[ 1 ] ) { + context = context instanceof jQuery ? context[ 0 ] : context; + + // Option to run scripts is true for back-compat + // Intentionally let the error be thrown if parseHTML is not present + jQuery.merge( this, jQuery.parseHTML( + match[ 1 ], + context && context.nodeType ? context.ownerDocument || context : document, + true + ) ); + + // HANDLE: $(html, props) + if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) { + for ( match in context ) { + + // Properties of context are called as methods if possible + if ( isFunction( this[ match ] ) ) { + this[ match ]( context[ match ] ); + + // ...and otherwise set as attributes + } else { + this.attr( match, context[ match ] ); + } + } + } + + return this; + + // HANDLE: $(#id) + } else { + elem = document.getElementById( match[ 2 ] ); + + if ( elem ) { + + // Inject the element directly into the jQuery object + this[ 0 ] = elem; + this.length = 1; + } + return this; + } + + // HANDLE: $(expr, $(...)) + } else if ( !context || context.jquery ) { + return ( context || root ).find( selector ); + + // HANDLE: $(expr, context) + // (which is just equivalent to: $(context).find(expr) + } else { + return this.constructor( context ).find( selector ); + } + + // HANDLE: $(DOMElement) + } else if ( selector.nodeType ) { + this[ 0 ] = selector; + this.length = 1; + return this; + + // HANDLE: $(function) + // Shortcut for document ready + } else if ( isFunction( selector ) ) { + return root.ready !== undefined ? + root.ready( selector ) : + + // Execute immediately if ready is not present + selector( jQuery ); + } + + return jQuery.makeArray( selector, this ); + }; + +// Give the init function the jQuery prototype for later instantiation +init.prototype = jQuery.fn; + +// Initialize central reference +rootjQuery = jQuery( document ); + + +var rparentsprev = /^(?:parents|prev(?:Until|All))/, + + // Methods guaranteed to produce a unique set when starting from a unique set + guaranteedUnique = { + children: true, + contents: true, + next: true, + prev: true + }; + +jQuery.fn.extend( { + has: function( target ) { + var targets = jQuery( target, this ), + l = targets.length; + + return this.filter( function() { + var i = 0; + for ( ; i < l; i++ ) { + if ( jQuery.contains( this, targets[ i ] ) ) { + return true; + } + } + } ); + }, + + closest: function( selectors, context ) { + var cur, + i = 0, + l = this.length, + matched = [], + targets = typeof selectors !== "string" && jQuery( selectors ); + + // Positional selectors never match, since there's no _selection_ context + if ( !rneedsContext.test( selectors ) ) { + for ( ; i < l; i++ ) { + for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) { + + // Always skip document fragments + if ( cur.nodeType < 11 && ( targets ? + targets.index( cur ) > -1 : + + // Don't pass non-elements to Sizzle + cur.nodeType === 1 && + jQuery.find.matchesSelector( cur, selectors ) ) ) { + + matched.push( cur ); + break; + } + } + } + } + + return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched ); + }, + + // Determine the position of an element within the set + index: function( elem ) { + + // No argument, return index in parent + if ( !elem ) { + return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1; + } + + // Index in selector + if ( typeof elem === "string" ) { + return indexOf.call( jQuery( elem ), this[ 0 ] ); + } + + // Locate the position of the desired element + return indexOf.call( this, + + // If it receives a jQuery object, the first element is used + elem.jquery ? elem[ 0 ] : elem + ); + }, + + add: function( selector, context ) { + return this.pushStack( + jQuery.uniqueSort( + jQuery.merge( this.get(), jQuery( selector, context ) ) + ) + ); + }, + + addBack: function( selector ) { + return this.add( selector == null ? + this.prevObject : this.prevObject.filter( selector ) + ); + } +} ); + +function sibling( cur, dir ) { + while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {} + return cur; +} + +jQuery.each( { + parent: function( elem ) { + var parent = elem.parentNode; + return parent && parent.nodeType !== 11 ? parent : null; + }, + parents: function( elem ) { + return dir( elem, "parentNode" ); + }, + parentsUntil: function( elem, _i, until ) { + return dir( elem, "parentNode", until ); + }, + next: function( elem ) { + return sibling( elem, "nextSibling" ); + }, + prev: function( elem ) { + return sibling( elem, "previousSibling" ); + }, + nextAll: function( elem ) { + return dir( elem, "nextSibling" ); + }, + prevAll: function( elem ) { + return dir( elem, "previousSibling" ); + }, + nextUntil: function( elem, _i, until ) { + return dir( elem, "nextSibling", until ); + }, + prevUntil: function( elem, _i, until ) { + return dir( elem, "previousSibling", until ); + }, + siblings: function( elem ) { + return siblings( ( elem.parentNode || {} ).firstChild, elem ); + }, + children: function( elem ) { + return siblings( elem.firstChild ); + }, + contents: function( elem ) { + if ( elem.contentDocument != null && + + // Support: IE 11+ + // elements with no `data` attribute has an object + // `contentDocument` with a `null` prototype. + getProto( elem.contentDocument ) ) { + + return elem.contentDocument; + } + + // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only + // Treat the template element as a regular one in browsers that + // don't support it. + if ( nodeName( elem, "template" ) ) { + elem = elem.content || elem; + } + + return jQuery.merge( [], elem.childNodes ); + } +}, function( name, fn ) { + jQuery.fn[ name ] = function( until, selector ) { + var matched = jQuery.map( this, fn, until ); + + if ( name.slice( -5 ) !== "Until" ) { + selector = until; + } + + if ( selector && typeof selector === "string" ) { + matched = jQuery.filter( selector, matched ); + } + + if ( this.length > 1 ) { + + // Remove duplicates + if ( !guaranteedUnique[ name ] ) { + jQuery.uniqueSort( matched ); + } + + // Reverse order for parents* and prev-derivatives + if ( rparentsprev.test( name ) ) { + matched.reverse(); + } + } + + return this.pushStack( matched ); + }; +} ); +var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g ); + + + +// Convert String-formatted options into Object-formatted ones +function createOptions( options ) { + var object = {}; + jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) { + object[ flag ] = true; + } ); + return object; +} + +/* + * Create a callback list using the following parameters: + * + * options: an optional list of space-separated options that will change how + * the callback list behaves or a more traditional option object + * + * By default a callback list will act like an event callback list and can be + * "fired" multiple times. + * + * Possible options: + * + * once: will ensure the callback list can only be fired once (like a Deferred) + * + * memory: will keep track of previous values and will call any callback added + * after the list has been fired right away with the latest "memorized" + * values (like a Deferred) + * + * unique: will ensure a callback can only be added once (no duplicate in the list) + * + * stopOnFalse: interrupt callings when a callback returns false + * + */ +jQuery.Callbacks = function( options ) { + + // Convert options from String-formatted to Object-formatted if needed + // (we check in cache first) + options = typeof options === "string" ? + createOptions( options ) : + jQuery.extend( {}, options ); + + var // Flag to know if list is currently firing + firing, + + // Last fire value for non-forgettable lists + memory, + + // Flag to know if list was already fired + fired, + + // Flag to prevent firing + locked, + + // Actual callback list + list = [], + + // Queue of execution data for repeatable lists + queue = [], + + // Index of currently firing callback (modified by add/remove as needed) + firingIndex = -1, + + // Fire callbacks + fire = function() { + + // Enforce single-firing + locked = locked || options.once; + + // Execute callbacks for all pending executions, + // respecting firingIndex overrides and runtime changes + fired = firing = true; + for ( ; queue.length; firingIndex = -1 ) { + memory = queue.shift(); + while ( ++firingIndex < list.length ) { + + // Run callback and check for early termination + if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false && + options.stopOnFalse ) { + + // Jump to end and forget the data so .add doesn't re-fire + firingIndex = list.length; + memory = false; + } + } + } + + // Forget the data if we're done with it + if ( !options.memory ) { + memory = false; + } + + firing = false; + + // Clean up if we're done firing for good + if ( locked ) { + + // Keep an empty list if we have data for future add calls + if ( memory ) { + list = []; + + // Otherwise, this object is spent + } else { + list = ""; + } + } + }, + + // Actual Callbacks object + self = { + + // Add a callback or a collection of callbacks to the list + add: function() { + if ( list ) { + + // If we have memory from a past run, we should fire after adding + if ( memory && !firing ) { + firingIndex = list.length - 1; + queue.push( memory ); + } + + ( function add( args ) { + jQuery.each( args, function( _, arg ) { + if ( isFunction( arg ) ) { + if ( !options.unique || !self.has( arg ) ) { + list.push( arg ); + } + } else if ( arg && arg.length && toType( arg ) !== "string" ) { + + // Inspect recursively + add( arg ); + } + } ); + } )( arguments ); + + if ( memory && !firing ) { + fire(); + } + } + return this; + }, + + // Remove a callback from the list + remove: function() { + jQuery.each( arguments, function( _, arg ) { + var index; + while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { + list.splice( index, 1 ); + + // Handle firing indexes + if ( index <= firingIndex ) { + firingIndex--; + } + } + } ); + return this; + }, + + // Check if a given callback is in the list. + // If no argument is given, return whether or not list has callbacks attached. + has: function( fn ) { + return fn ? + jQuery.inArray( fn, list ) > -1 : + list.length > 0; + }, + + // Remove all callbacks from the list + empty: function() { + if ( list ) { + list = []; + } + return this; + }, + + // Disable .fire and .add + // Abort any current/pending executions + // Clear all callbacks and values + disable: function() { + locked = queue = []; + list = memory = ""; + return this; + }, + disabled: function() { + return !list; + }, + + // Disable .fire + // Also disable .add unless we have memory (since it would have no effect) + // Abort any pending executions + lock: function() { + locked = queue = []; + if ( !memory && !firing ) { + list = memory = ""; + } + return this; + }, + locked: function() { + return !!locked; + }, + + // Call all callbacks with the given context and arguments + fireWith: function( context, args ) { + if ( !locked ) { + args = args || []; + args = [ context, args.slice ? args.slice() : args ]; + queue.push( args ); + if ( !firing ) { + fire(); + } + } + return this; + }, + + // Call all the callbacks with the given arguments + fire: function() { + self.fireWith( this, arguments ); + return this; + }, + + // To know if the callbacks have already been called at least once + fired: function() { + return !!fired; + } + }; + + return self; +}; + + +function Identity( v ) { + return v; +} +function Thrower( ex ) { + throw ex; +} + +function adoptValue( value, resolve, reject, noValue ) { + var method; + + try { + + // Check for promise aspect first to privilege synchronous behavior + if ( value && isFunction( ( method = value.promise ) ) ) { + method.call( value ).done( resolve ).fail( reject ); + + // Other thenables + } else if ( value && isFunction( ( method = value.then ) ) ) { + method.call( value, resolve, reject ); + + // Other non-thenables + } else { + + // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer: + // * false: [ value ].slice( 0 ) => resolve( value ) + // * true: [ value ].slice( 1 ) => resolve() + resolve.apply( undefined, [ value ].slice( noValue ) ); + } + + // For Promises/A+, convert exceptions into rejections + // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in + // Deferred#then to conditionally suppress rejection. + } catch ( value ) { + + // Support: Android 4.0 only + // Strict mode functions invoked without .call/.apply get global-object context + reject.apply( undefined, [ value ] ); + } +} + +jQuery.extend( { + + Deferred: function( func ) { + var tuples = [ + + // action, add listener, callbacks, + // ... .then handlers, argument index, [final state] + [ "notify", "progress", jQuery.Callbacks( "memory" ), + jQuery.Callbacks( "memory" ), 2 ], + [ "resolve", "done", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 0, "resolved" ], + [ "reject", "fail", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 1, "rejected" ] + ], + state = "pending", + promise = { + state: function() { + return state; + }, + always: function() { + deferred.done( arguments ).fail( arguments ); + return this; + }, + "catch": function( fn ) { + return promise.then( null, fn ); + }, + + // Keep pipe for back-compat + pipe: function( /* fnDone, fnFail, fnProgress */ ) { + var fns = arguments; + + return jQuery.Deferred( function( newDefer ) { + jQuery.each( tuples, function( _i, tuple ) { + + // Map tuples (progress, done, fail) to arguments (done, fail, progress) + var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ]; + + // deferred.progress(function() { bind to newDefer or newDefer.notify }) + // deferred.done(function() { bind to newDefer or newDefer.resolve }) + // deferred.fail(function() { bind to newDefer or newDefer.reject }) + deferred[ tuple[ 1 ] ]( function() { + var returned = fn && fn.apply( this, arguments ); + if ( returned && isFunction( returned.promise ) ) { + returned.promise() + .progress( newDefer.notify ) + .done( newDefer.resolve ) + .fail( newDefer.reject ); + } else { + newDefer[ tuple[ 0 ] + "With" ]( + this, + fn ? [ returned ] : arguments + ); + } + } ); + } ); + fns = null; + } ).promise(); + }, + then: function( onFulfilled, onRejected, onProgress ) { + var maxDepth = 0; + function resolve( depth, deferred, handler, special ) { + return function() { + var that = this, + args = arguments, + mightThrow = function() { + var returned, then; + + // Support: Promises/A+ section 2.3.3.3.3 + // https://promisesaplus.com/#point-59 + // Ignore double-resolution attempts + if ( depth < maxDepth ) { + return; + } + + returned = handler.apply( that, args ); + + // Support: Promises/A+ section 2.3.1 + // https://promisesaplus.com/#point-48 + if ( returned === deferred.promise() ) { + throw new TypeError( "Thenable self-resolution" ); + } + + // Support: Promises/A+ sections 2.3.3.1, 3.5 + // https://promisesaplus.com/#point-54 + // https://promisesaplus.com/#point-75 + // Retrieve `then` only once + then = returned && + + // Support: Promises/A+ section 2.3.4 + // https://promisesaplus.com/#point-64 + // Only check objects and functions for thenability + ( typeof returned === "object" || + typeof returned === "function" ) && + returned.then; + + // Handle a returned thenable + if ( isFunction( then ) ) { + + // Special processors (notify) just wait for resolution + if ( special ) { + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ) + ); + + // Normal processors (resolve) also hook into progress + } else { + + // ...and disregard older resolution values + maxDepth++; + + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ), + resolve( maxDepth, deferred, Identity, + deferred.notifyWith ) + ); + } + + // Handle all other returned values + } else { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Identity ) { + that = undefined; + args = [ returned ]; + } + + // Process the value(s) + // Default process is resolve + ( special || deferred.resolveWith )( that, args ); + } + }, + + // Only normal processors (resolve) catch and reject exceptions + process = special ? + mightThrow : + function() { + try { + mightThrow(); + } catch ( e ) { + + if ( jQuery.Deferred.exceptionHook ) { + jQuery.Deferred.exceptionHook( e, + process.stackTrace ); + } + + // Support: Promises/A+ section 2.3.3.3.4.1 + // https://promisesaplus.com/#point-61 + // Ignore post-resolution exceptions + if ( depth + 1 >= maxDepth ) { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Thrower ) { + that = undefined; + args = [ e ]; + } + + deferred.rejectWith( that, args ); + } + } + }; + + // Support: Promises/A+ section 2.3.3.3.1 + // https://promisesaplus.com/#point-57 + // Re-resolve promises immediately to dodge false rejection from + // subsequent errors + if ( depth ) { + process(); + } else { + + // Call an optional hook to record the stack, in case of exception + // since it's otherwise lost when execution goes async + if ( jQuery.Deferred.getStackHook ) { + process.stackTrace = jQuery.Deferred.getStackHook(); + } + window.setTimeout( process ); + } + }; + } + + return jQuery.Deferred( function( newDefer ) { + + // progress_handlers.add( ... ) + tuples[ 0 ][ 3 ].add( + resolve( + 0, + newDefer, + isFunction( onProgress ) ? + onProgress : + Identity, + newDefer.notifyWith + ) + ); + + // fulfilled_handlers.add( ... ) + tuples[ 1 ][ 3 ].add( + resolve( + 0, + newDefer, + isFunction( onFulfilled ) ? + onFulfilled : + Identity + ) + ); + + // rejected_handlers.add( ... ) + tuples[ 2 ][ 3 ].add( + resolve( + 0, + newDefer, + isFunction( onRejected ) ? + onRejected : + Thrower + ) + ); + } ).promise(); + }, + + // Get a promise for this deferred + // If obj is provided, the promise aspect is added to the object + promise: function( obj ) { + return obj != null ? jQuery.extend( obj, promise ) : promise; + } + }, + deferred = {}; + + // Add list-specific methods + jQuery.each( tuples, function( i, tuple ) { + var list = tuple[ 2 ], + stateString = tuple[ 5 ]; + + // promise.progress = list.add + // promise.done = list.add + // promise.fail = list.add + promise[ tuple[ 1 ] ] = list.add; + + // Handle state + if ( stateString ) { + list.add( + function() { + + // state = "resolved" (i.e., fulfilled) + // state = "rejected" + state = stateString; + }, + + // rejected_callbacks.disable + // fulfilled_callbacks.disable + tuples[ 3 - i ][ 2 ].disable, + + // rejected_handlers.disable + // fulfilled_handlers.disable + tuples[ 3 - i ][ 3 ].disable, + + // progress_callbacks.lock + tuples[ 0 ][ 2 ].lock, + + // progress_handlers.lock + tuples[ 0 ][ 3 ].lock + ); + } + + // progress_handlers.fire + // fulfilled_handlers.fire + // rejected_handlers.fire + list.add( tuple[ 3 ].fire ); + + // deferred.notify = function() { deferred.notifyWith(...) } + // deferred.resolve = function() { deferred.resolveWith(...) } + // deferred.reject = function() { deferred.rejectWith(...) } + deferred[ tuple[ 0 ] ] = function() { + deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments ); + return this; + }; + + // deferred.notifyWith = list.fireWith + // deferred.resolveWith = list.fireWith + // deferred.rejectWith = list.fireWith + deferred[ tuple[ 0 ] + "With" ] = list.fireWith; + } ); + + // Make the deferred a promise + promise.promise( deferred ); + + // Call given func if any + if ( func ) { + func.call( deferred, deferred ); + } + + // All done! + return deferred; + }, + + // Deferred helper + when: function( singleValue ) { + var + + // count of uncompleted subordinates + remaining = arguments.length, + + // count of unprocessed arguments + i = remaining, + + // subordinate fulfillment data + resolveContexts = Array( i ), + resolveValues = slice.call( arguments ), + + // the primary Deferred + primary = jQuery.Deferred(), + + // subordinate callback factory + updateFunc = function( i ) { + return function( value ) { + resolveContexts[ i ] = this; + resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value; + if ( !( --remaining ) ) { + primary.resolveWith( resolveContexts, resolveValues ); + } + }; + }; + + // Single- and empty arguments are adopted like Promise.resolve + if ( remaining <= 1 ) { + adoptValue( singleValue, primary.done( updateFunc( i ) ).resolve, primary.reject, + !remaining ); + + // Use .then() to unwrap secondary thenables (cf. gh-3000) + if ( primary.state() === "pending" || + isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) { + + return primary.then(); + } + } + + // Multiple arguments are aggregated like Promise.all array elements + while ( i-- ) { + adoptValue( resolveValues[ i ], updateFunc( i ), primary.reject ); + } + + return primary.promise(); + } +} ); + + +// These usually indicate a programmer mistake during development, +// warn about them ASAP rather than swallowing them by default. +var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/; + +jQuery.Deferred.exceptionHook = function( error, stack ) { + + // Support: IE 8 - 9 only + // Console exists when dev tools are open, which can happen at any time + if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) { + window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack ); + } +}; + + + + +jQuery.readyException = function( error ) { + window.setTimeout( function() { + throw error; + } ); +}; + + + + +// The deferred used on DOM ready +var readyList = jQuery.Deferred(); + +jQuery.fn.ready = function( fn ) { + + readyList + .then( fn ) + + // Wrap jQuery.readyException in a function so that the lookup + // happens at the time of error handling instead of callback + // registration. + .catch( function( error ) { + jQuery.readyException( error ); + } ); + + return this; +}; + +jQuery.extend( { + + // Is the DOM ready to be used? Set to true once it occurs. + isReady: false, + + // A counter to track how many items to wait for before + // the ready event fires. See #6781 + readyWait: 1, + + // Handle when the DOM is ready + ready: function( wait ) { + + // Abort if there are pending holds or we're already ready + if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) { + return; + } + + // Remember that the DOM is ready + jQuery.isReady = true; + + // If a normal DOM Ready event fired, decrement, and wait if need be + if ( wait !== true && --jQuery.readyWait > 0 ) { + return; + } + + // If there are functions bound, to execute + readyList.resolveWith( document, [ jQuery ] ); + } +} ); + +jQuery.ready.then = readyList.then; + +// The ready event handler and self cleanup method +function completed() { + document.removeEventListener( "DOMContentLoaded", completed ); + window.removeEventListener( "load", completed ); + jQuery.ready(); +} + +// Catch cases where $(document).ready() is called +// after the browser event has already occurred. +// Support: IE <=9 - 10 only +// Older IE sometimes signals "interactive" too soon +if ( document.readyState === "complete" || + ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) { + + // Handle it asynchronously to allow scripts the opportunity to delay ready + window.setTimeout( jQuery.ready ); + +} else { + + // Use the handy event callback + document.addEventListener( "DOMContentLoaded", completed ); + + // A fallback to window.onload, that will always work + window.addEventListener( "load", completed ); +} + + + + +// Multifunctional method to get and set values of a collection +// The value/s can optionally be executed if it's a function +var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { + var i = 0, + len = elems.length, + bulk = key == null; + + // Sets many values + if ( toType( key ) === "object" ) { + chainable = true; + for ( i in key ) { + access( elems, fn, i, key[ i ], true, emptyGet, raw ); + } + + // Sets one value + } else if ( value !== undefined ) { + chainable = true; + + if ( !isFunction( value ) ) { + raw = true; + } + + if ( bulk ) { + + // Bulk operations run against the entire set + if ( raw ) { + fn.call( elems, value ); + fn = null; + + // ...except when executing function values + } else { + bulk = fn; + fn = function( elem, _key, value ) { + return bulk.call( jQuery( elem ), value ); + }; + } + } + + if ( fn ) { + for ( ; i < len; i++ ) { + fn( + elems[ i ], key, raw ? + value : + value.call( elems[ i ], i, fn( elems[ i ], key ) ) + ); + } + } + } + + if ( chainable ) { + return elems; + } + + // Gets + if ( bulk ) { + return fn.call( elems ); + } + + return len ? fn( elems[ 0 ], key ) : emptyGet; +}; + + +// Matches dashed string for camelizing +var rmsPrefix = /^-ms-/, + rdashAlpha = /-([a-z])/g; + +// Used by camelCase as callback to replace() +function fcamelCase( _all, letter ) { + return letter.toUpperCase(); +} + +// Convert dashed to camelCase; used by the css and data modules +// Support: IE <=9 - 11, Edge 12 - 15 +// Microsoft forgot to hump their vendor prefix (#9572) +function camelCase( string ) { + return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); +} +var acceptData = function( owner ) { + + // Accepts only: + // - Node + // - Node.ELEMENT_NODE + // - Node.DOCUMENT_NODE + // - Object + // - Any + return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType ); +}; + + + + +function Data() { + this.expando = jQuery.expando + Data.uid++; +} + +Data.uid = 1; + +Data.prototype = { + + cache: function( owner ) { + + // Check if the owner object already has a cache + var value = owner[ this.expando ]; + + // If not, create one + if ( !value ) { + value = {}; + + // We can accept data for non-element nodes in modern browsers, + // but we should not, see #8335. + // Always return an empty object. + if ( acceptData( owner ) ) { + + // If it is a node unlikely to be stringify-ed or looped over + // use plain assignment + if ( owner.nodeType ) { + owner[ this.expando ] = value; + + // Otherwise secure it in a non-enumerable property + // configurable must be true to allow the property to be + // deleted when data is removed + } else { + Object.defineProperty( owner, this.expando, { + value: value, + configurable: true + } ); + } + } + } + + return value; + }, + set: function( owner, data, value ) { + var prop, + cache = this.cache( owner ); + + // Handle: [ owner, key, value ] args + // Always use camelCase key (gh-2257) + if ( typeof data === "string" ) { + cache[ camelCase( data ) ] = value; + + // Handle: [ owner, { properties } ] args + } else { + + // Copy the properties one-by-one to the cache object + for ( prop in data ) { + cache[ camelCase( prop ) ] = data[ prop ]; + } + } + return cache; + }, + get: function( owner, key ) { + return key === undefined ? + this.cache( owner ) : + + // Always use camelCase key (gh-2257) + owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ]; + }, + access: function( owner, key, value ) { + + // In cases where either: + // + // 1. No key was specified + // 2. A string key was specified, but no value provided + // + // Take the "read" path and allow the get method to determine + // which value to return, respectively either: + // + // 1. The entire cache object + // 2. The data stored at the key + // + if ( key === undefined || + ( ( key && typeof key === "string" ) && value === undefined ) ) { + + return this.get( owner, key ); + } + + // When the key is not a string, or both a key and value + // are specified, set or extend (existing objects) with either: + // + // 1. An object of properties + // 2. A key and value + // + this.set( owner, key, value ); + + // Since the "set" path can have two possible entry points + // return the expected data based on which path was taken[*] + return value !== undefined ? value : key; + }, + remove: function( owner, key ) { + var i, + cache = owner[ this.expando ]; + + if ( cache === undefined ) { + return; + } + + if ( key !== undefined ) { + + // Support array or space separated string of keys + if ( Array.isArray( key ) ) { + + // If key is an array of keys... + // We always set camelCase keys, so remove that. + key = key.map( camelCase ); + } else { + key = camelCase( key ); + + // If a key with the spaces exists, use it. + // Otherwise, create an array by matching non-whitespace + key = key in cache ? + [ key ] : + ( key.match( rnothtmlwhite ) || [] ); + } + + i = key.length; + + while ( i-- ) { + delete cache[ key[ i ] ]; + } + } + + // Remove the expando if there's no more data + if ( key === undefined || jQuery.isEmptyObject( cache ) ) { + + // Support: Chrome <=35 - 45 + // Webkit & Blink performance suffers when deleting properties + // from DOM nodes, so set to undefined instead + // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted) + if ( owner.nodeType ) { + owner[ this.expando ] = undefined; + } else { + delete owner[ this.expando ]; + } + } + }, + hasData: function( owner ) { + var cache = owner[ this.expando ]; + return cache !== undefined && !jQuery.isEmptyObject( cache ); + } +}; +var dataPriv = new Data(); + +var dataUser = new Data(); + + + +// Implementation Summary +// +// 1. Enforce API surface and semantic compatibility with 1.9.x branch +// 2. Improve the module's maintainability by reducing the storage +// paths to a single mechanism. +// 3. Use the same single mechanism to support "private" and "user" data. +// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData) +// 5. Avoid exposing implementation details on user objects (eg. expando properties) +// 6. Provide a clear path for implementation upgrade to WeakMap in 2014 + +var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/, + rmultiDash = /[A-Z]/g; + +function getData( data ) { + if ( data === "true" ) { + return true; + } + + if ( data === "false" ) { + return false; + } + + if ( data === "null" ) { + return null; + } + + // Only convert to a number if it doesn't change the string + if ( data === +data + "" ) { + return +data; + } + + if ( rbrace.test( data ) ) { + return JSON.parse( data ); + } + + return data; +} + +function dataAttr( elem, key, data ) { + var name; + + // If nothing was found internally, try to fetch any + // data from the HTML5 data-* attribute + if ( data === undefined && elem.nodeType === 1 ) { + name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase(); + data = elem.getAttribute( name ); + + if ( typeof data === "string" ) { + try { + data = getData( data ); + } catch ( e ) {} + + // Make sure we set the data so it isn't changed later + dataUser.set( elem, key, data ); + } else { + data = undefined; + } + } + return data; +} + +jQuery.extend( { + hasData: function( elem ) { + return dataUser.hasData( elem ) || dataPriv.hasData( elem ); + }, + + data: function( elem, name, data ) { + return dataUser.access( elem, name, data ); + }, + + removeData: function( elem, name ) { + dataUser.remove( elem, name ); + }, + + // TODO: Now that all calls to _data and _removeData have been replaced + // with direct calls to dataPriv methods, these can be deprecated. + _data: function( elem, name, data ) { + return dataPriv.access( elem, name, data ); + }, + + _removeData: function( elem, name ) { + dataPriv.remove( elem, name ); + } +} ); + +jQuery.fn.extend( { + data: function( key, value ) { + var i, name, data, + elem = this[ 0 ], + attrs = elem && elem.attributes; + + // Gets all values + if ( key === undefined ) { + if ( this.length ) { + data = dataUser.get( elem ); + + if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) { + i = attrs.length; + while ( i-- ) { + + // Support: IE 11 only + // The attrs elements can be null (#14894) + if ( attrs[ i ] ) { + name = attrs[ i ].name; + if ( name.indexOf( "data-" ) === 0 ) { + name = camelCase( name.slice( 5 ) ); + dataAttr( elem, name, data[ name ] ); + } + } + } + dataPriv.set( elem, "hasDataAttrs", true ); + } + } + + return data; + } + + // Sets multiple values + if ( typeof key === "object" ) { + return this.each( function() { + dataUser.set( this, key ); + } ); + } + + return access( this, function( value ) { + var data; + + // The calling jQuery object (element matches) is not empty + // (and therefore has an element appears at this[ 0 ]) and the + // `value` parameter was not undefined. An empty jQuery object + // will result in `undefined` for elem = this[ 0 ] which will + // throw an exception if an attempt to read a data cache is made. + if ( elem && value === undefined ) { + + // Attempt to get data from the cache + // The key will always be camelCased in Data + data = dataUser.get( elem, key ); + if ( data !== undefined ) { + return data; + } + + // Attempt to "discover" the data in + // HTML5 custom data-* attrs + data = dataAttr( elem, key ); + if ( data !== undefined ) { + return data; + } + + // We tried really hard, but the data doesn't exist. + return; + } + + // Set the data... + this.each( function() { + + // We always store the camelCased key + dataUser.set( this, key, value ); + } ); + }, null, value, arguments.length > 1, null, true ); + }, + + removeData: function( key ) { + return this.each( function() { + dataUser.remove( this, key ); + } ); + } +} ); + + +jQuery.extend( { + queue: function( elem, type, data ) { + var queue; + + if ( elem ) { + type = ( type || "fx" ) + "queue"; + queue = dataPriv.get( elem, type ); + + // Speed up dequeue by getting out quickly if this is just a lookup + if ( data ) { + if ( !queue || Array.isArray( data ) ) { + queue = dataPriv.access( elem, type, jQuery.makeArray( data ) ); + } else { + queue.push( data ); + } + } + return queue || []; + } + }, + + dequeue: function( elem, type ) { + type = type || "fx"; + + var queue = jQuery.queue( elem, type ), + startLength = queue.length, + fn = queue.shift(), + hooks = jQuery._queueHooks( elem, type ), + next = function() { + jQuery.dequeue( elem, type ); + }; + + // If the fx queue is dequeued, always remove the progress sentinel + if ( fn === "inprogress" ) { + fn = queue.shift(); + startLength--; + } + + if ( fn ) { + + // Add a progress sentinel to prevent the fx queue from being + // automatically dequeued + if ( type === "fx" ) { + queue.unshift( "inprogress" ); + } + + // Clear up the last queue stop function + delete hooks.stop; + fn.call( elem, next, hooks ); + } + + if ( !startLength && hooks ) { + hooks.empty.fire(); + } + }, + + // Not public - generate a queueHooks object, or return the current one + _queueHooks: function( elem, type ) { + var key = type + "queueHooks"; + return dataPriv.get( elem, key ) || dataPriv.access( elem, key, { + empty: jQuery.Callbacks( "once memory" ).add( function() { + dataPriv.remove( elem, [ type + "queue", key ] ); + } ) + } ); + } +} ); + +jQuery.fn.extend( { + queue: function( type, data ) { + var setter = 2; + + if ( typeof type !== "string" ) { + data = type; + type = "fx"; + setter--; + } + + if ( arguments.length < setter ) { + return jQuery.queue( this[ 0 ], type ); + } + + return data === undefined ? + this : + this.each( function() { + var queue = jQuery.queue( this, type, data ); + + // Ensure a hooks for this queue + jQuery._queueHooks( this, type ); + + if ( type === "fx" && queue[ 0 ] !== "inprogress" ) { + jQuery.dequeue( this, type ); + } + } ); + }, + dequeue: function( type ) { + return this.each( function() { + jQuery.dequeue( this, type ); + } ); + }, + clearQueue: function( type ) { + return this.queue( type || "fx", [] ); + }, + + // Get a promise resolved when queues of a certain type + // are emptied (fx is the type by default) + promise: function( type, obj ) { + var tmp, + count = 1, + defer = jQuery.Deferred(), + elements = this, + i = this.length, + resolve = function() { + if ( !( --count ) ) { + defer.resolveWith( elements, [ elements ] ); + } + }; + + if ( typeof type !== "string" ) { + obj = type; + type = undefined; + } + type = type || "fx"; + + while ( i-- ) { + tmp = dataPriv.get( elements[ i ], type + "queueHooks" ); + if ( tmp && tmp.empty ) { + count++; + tmp.empty.add( resolve ); + } + } + resolve(); + return defer.promise( obj ); + } +} ); +var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source; + +var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ); + + +var cssExpand = [ "Top", "Right", "Bottom", "Left" ]; + +var documentElement = document.documentElement; + + + + var isAttached = function( elem ) { + return jQuery.contains( elem.ownerDocument, elem ); + }, + composed = { composed: true }; + + // Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only + // Check attachment across shadow DOM boundaries when possible (gh-3504) + // Support: iOS 10.0-10.2 only + // Early iOS 10 versions support `attachShadow` but not `getRootNode`, + // leading to errors. We need to check for `getRootNode`. + if ( documentElement.getRootNode ) { + isAttached = function( elem ) { + return jQuery.contains( elem.ownerDocument, elem ) || + elem.getRootNode( composed ) === elem.ownerDocument; + }; + } +var isHiddenWithinTree = function( elem, el ) { + + // isHiddenWithinTree might be called from jQuery#filter function; + // in that case, element will be second argument + elem = el || elem; + + // Inline style trumps all + return elem.style.display === "none" || + elem.style.display === "" && + + // Otherwise, check computed style + // Support: Firefox <=43 - 45 + // Disconnected elements can have computed display: none, so first confirm that elem is + // in the document. + isAttached( elem ) && + + jQuery.css( elem, "display" ) === "none"; + }; + + + +function adjustCSS( elem, prop, valueParts, tween ) { + var adjusted, scale, + maxIterations = 20, + currentValue = tween ? + function() { + return tween.cur(); + } : + function() { + return jQuery.css( elem, prop, "" ); + }, + initial = currentValue(), + unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ), + + // Starting value computation is required for potential unit mismatches + initialInUnit = elem.nodeType && + ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) && + rcssNum.exec( jQuery.css( elem, prop ) ); + + if ( initialInUnit && initialInUnit[ 3 ] !== unit ) { + + // Support: Firefox <=54 + // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144) + initial = initial / 2; + + // Trust units reported by jQuery.css + unit = unit || initialInUnit[ 3 ]; + + // Iteratively approximate from a nonzero starting point + initialInUnit = +initial || 1; + + while ( maxIterations-- ) { + + // Evaluate and update our best guess (doubling guesses that zero out). + // Finish if the scale equals or crosses 1 (making the old*new product non-positive). + jQuery.style( elem, prop, initialInUnit + unit ); + if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) { + maxIterations = 0; + } + initialInUnit = initialInUnit / scale; + + } + + initialInUnit = initialInUnit * 2; + jQuery.style( elem, prop, initialInUnit + unit ); + + // Make sure we update the tween properties later on + valueParts = valueParts || []; + } + + if ( valueParts ) { + initialInUnit = +initialInUnit || +initial || 0; + + // Apply relative offset (+=/-=) if specified + adjusted = valueParts[ 1 ] ? + initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] : + +valueParts[ 2 ]; + if ( tween ) { + tween.unit = unit; + tween.start = initialInUnit; + tween.end = adjusted; + } + } + return adjusted; +} + + +var defaultDisplayMap = {}; + +function getDefaultDisplay( elem ) { + var temp, + doc = elem.ownerDocument, + nodeName = elem.nodeName, + display = defaultDisplayMap[ nodeName ]; + + if ( display ) { + return display; + } + + temp = doc.body.appendChild( doc.createElement( nodeName ) ); + display = jQuery.css( temp, "display" ); + + temp.parentNode.removeChild( temp ); + + if ( display === "none" ) { + display = "block"; + } + defaultDisplayMap[ nodeName ] = display; + + return display; +} + +function showHide( elements, show ) { + var display, elem, + values = [], + index = 0, + length = elements.length; + + // Determine new display value for elements that need to change + for ( ; index < length; index++ ) { + elem = elements[ index ]; + if ( !elem.style ) { + continue; + } + + display = elem.style.display; + if ( show ) { + + // Since we force visibility upon cascade-hidden elements, an immediate (and slow) + // check is required in this first loop unless we have a nonempty display value (either + // inline or about-to-be-restored) + if ( display === "none" ) { + values[ index ] = dataPriv.get( elem, "display" ) || null; + if ( !values[ index ] ) { + elem.style.display = ""; + } + } + if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) { + values[ index ] = getDefaultDisplay( elem ); + } + } else { + if ( display !== "none" ) { + values[ index ] = "none"; + + // Remember what we're overwriting + dataPriv.set( elem, "display", display ); + } + } + } + + // Set the display of the elements in a second loop to avoid constant reflow + for ( index = 0; index < length; index++ ) { + if ( values[ index ] != null ) { + elements[ index ].style.display = values[ index ]; + } + } + + return elements; +} + +jQuery.fn.extend( { + show: function() { + return showHide( this, true ); + }, + hide: function() { + return showHide( this ); + }, + toggle: function( state ) { + if ( typeof state === "boolean" ) { + return state ? this.show() : this.hide(); + } + + return this.each( function() { + if ( isHiddenWithinTree( this ) ) { + jQuery( this ).show(); + } else { + jQuery( this ).hide(); + } + } ); + } +} ); +var rcheckableType = ( /^(?:checkbox|radio)$/i ); + +var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i ); + +var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i ); + + + +( function() { + var fragment = document.createDocumentFragment(), + div = fragment.appendChild( document.createElement( "div" ) ), + input = document.createElement( "input" ); + + // Support: Android 4.0 - 4.3 only + // Check state lost if the name is set (#11217) + // Support: Windows Web Apps (WWA) + // `name` and `type` must use .setAttribute for WWA (#14901) + input.setAttribute( "type", "radio" ); + input.setAttribute( "checked", "checked" ); + input.setAttribute( "name", "t" ); + + div.appendChild( input ); + + // Support: Android <=4.1 only + // Older WebKit doesn't clone checked state correctly in fragments + support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; + + // Support: IE <=11 only + // Make sure textarea (and checkbox) defaultValue is properly cloned + div.innerHTML = ""; + support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; + + // Support: IE <=9 only + // IE <=9 replaces "; + support.option = !!div.lastChild; +} )(); + + +// We have to close these tags to support XHTML (#13200) +var wrapMap = { + + // XHTML parsers do not magically insert elements in the + // same way that tag soup parsers do. So we cannot shorten + // this by omitting or other required elements. + thead: [ 1, "", "
" ], + col: [ 2, "", "
" ], + tr: [ 2, "", "
" ], + td: [ 3, "", "
" ], + + _default: [ 0, "", "" ] +}; + +wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; +wrapMap.th = wrapMap.td; + +// Support: IE <=9 only +if ( !support.option ) { + wrapMap.optgroup = wrapMap.option = [ 1, "" ]; +} + + +function getAll( context, tag ) { + + // Support: IE <=9 - 11 only + // Use typeof to avoid zero-argument method invocation on host objects (#15151) + var ret; + + if ( typeof context.getElementsByTagName !== "undefined" ) { + ret = context.getElementsByTagName( tag || "*" ); + + } else if ( typeof context.querySelectorAll !== "undefined" ) { + ret = context.querySelectorAll( tag || "*" ); + + } else { + ret = []; + } + + if ( tag === undefined || tag && nodeName( context, tag ) ) { + return jQuery.merge( [ context ], ret ); + } + + return ret; +} + + +// Mark scripts as having already been evaluated +function setGlobalEval( elems, refElements ) { + var i = 0, + l = elems.length; + + for ( ; i < l; i++ ) { + dataPriv.set( + elems[ i ], + "globalEval", + !refElements || dataPriv.get( refElements[ i ], "globalEval" ) + ); + } +} + + +var rhtml = /<|&#?\w+;/; + +function buildFragment( elems, context, scripts, selection, ignored ) { + var elem, tmp, tag, wrap, attached, j, + fragment = context.createDocumentFragment(), + nodes = [], + i = 0, + l = elems.length; + + for ( ; i < l; i++ ) { + elem = elems[ i ]; + + if ( elem || elem === 0 ) { + + // Add nodes directly + if ( toType( elem ) === "object" ) { + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem ); + + // Convert non-html into a text node + } else if ( !rhtml.test( elem ) ) { + nodes.push( context.createTextNode( elem ) ); + + // Convert html into DOM nodes + } else { + tmp = tmp || fragment.appendChild( context.createElement( "div" ) ); + + // Deserialize a standard representation + tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase(); + wrap = wrapMap[ tag ] || wrapMap._default; + tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ]; + + // Descend through wrappers to the right content + j = wrap[ 0 ]; + while ( j-- ) { + tmp = tmp.lastChild; + } + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, tmp.childNodes ); + + // Remember the top-level container + tmp = fragment.firstChild; + + // Ensure the created nodes are orphaned (#12392) + tmp.textContent = ""; + } + } + } + + // Remove wrapper from fragment + fragment.textContent = ""; + + i = 0; + while ( ( elem = nodes[ i++ ] ) ) { + + // Skip elements already in the context collection (trac-4087) + if ( selection && jQuery.inArray( elem, selection ) > -1 ) { + if ( ignored ) { + ignored.push( elem ); + } + continue; + } + + attached = isAttached( elem ); + + // Append to fragment + tmp = getAll( fragment.appendChild( elem ), "script" ); + + // Preserve script evaluation history + if ( attached ) { + setGlobalEval( tmp ); + } + + // Capture executables + if ( scripts ) { + j = 0; + while ( ( elem = tmp[ j++ ] ) ) { + if ( rscriptType.test( elem.type || "" ) ) { + scripts.push( elem ); + } + } + } + } + + return fragment; +} + + +var rtypenamespace = /^([^.]*)(?:\.(.+)|)/; + +function returnTrue() { + return true; +} + +function returnFalse() { + return false; +} + +// Support: IE <=9 - 11+ +// focus() and blur() are asynchronous, except when they are no-op. +// So expect focus to be synchronous when the element is already active, +// and blur to be synchronous when the element is not already active. +// (focus and blur are always synchronous in other supported browsers, +// this just defines when we can count on it). +function expectSync( elem, type ) { + return ( elem === safeActiveElement() ) === ( type === "focus" ); +} + +// Support: IE <=9 only +// Accessing document.activeElement can throw unexpectedly +// https://bugs.jquery.com/ticket/13393 +function safeActiveElement() { + try { + return document.activeElement; + } catch ( err ) { } +} + +function on( elem, types, selector, data, fn, one ) { + var origFn, type; + + // Types can be a map of types/handlers + if ( typeof types === "object" ) { + + // ( types-Object, selector, data ) + if ( typeof selector !== "string" ) { + + // ( types-Object, data ) + data = data || selector; + selector = undefined; + } + for ( type in types ) { + on( elem, type, selector, data, types[ type ], one ); + } + return elem; + } + + if ( data == null && fn == null ) { + + // ( types, fn ) + fn = selector; + data = selector = undefined; + } else if ( fn == null ) { + if ( typeof selector === "string" ) { + + // ( types, selector, fn ) + fn = data; + data = undefined; + } else { + + // ( types, data, fn ) + fn = data; + data = selector; + selector = undefined; + } + } + if ( fn === false ) { + fn = returnFalse; + } else if ( !fn ) { + return elem; + } + + if ( one === 1 ) { + origFn = fn; + fn = function( event ) { + + // Can use an empty set, since event contains the info + jQuery().off( event ); + return origFn.apply( this, arguments ); + }; + + // Use same guid so caller can remove using origFn + fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ ); + } + return elem.each( function() { + jQuery.event.add( this, types, fn, data, selector ); + } ); +} + +/* + * Helper functions for managing events -- not part of the public interface. + * Props to Dean Edwards' addEvent library for many of the ideas. + */ +jQuery.event = { + + global: {}, + + add: function( elem, types, handler, data, selector ) { + + var handleObjIn, eventHandle, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.get( elem ); + + // Only attach events to objects that accept data + if ( !acceptData( elem ) ) { + return; + } + + // Caller can pass in an object of custom data in lieu of the handler + if ( handler.handler ) { + handleObjIn = handler; + handler = handleObjIn.handler; + selector = handleObjIn.selector; + } + + // Ensure that invalid selectors throw exceptions at attach time + // Evaluate against documentElement in case elem is a non-element node (e.g., document) + if ( selector ) { + jQuery.find.matchesSelector( documentElement, selector ); + } + + // Make sure that the handler has a unique ID, used to find/remove it later + if ( !handler.guid ) { + handler.guid = jQuery.guid++; + } + + // Init the element's event structure and main handler, if this is the first + if ( !( events = elemData.events ) ) { + events = elemData.events = Object.create( null ); + } + if ( !( eventHandle = elemData.handle ) ) { + eventHandle = elemData.handle = function( e ) { + + // Discard the second event of a jQuery.event.trigger() and + // when an event is called after a page has unloaded + return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ? + jQuery.event.dispatch.apply( elem, arguments ) : undefined; + }; + } + + // Handle multiple events separated by a space + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); + + // There *must* be a type, no attaching namespace-only handlers + if ( !type ) { + continue; + } + + // If event changes its type, use the special event handlers for the changed type + special = jQuery.event.special[ type ] || {}; + + // If selector defined, determine special event api type, otherwise given type + type = ( selector ? special.delegateType : special.bindType ) || type; + + // Update special based on newly reset type + special = jQuery.event.special[ type ] || {}; + + // handleObj is passed to all event handlers + handleObj = jQuery.extend( { + type: type, + origType: origType, + data: data, + handler: handler, + guid: handler.guid, + selector: selector, + needsContext: selector && jQuery.expr.match.needsContext.test( selector ), + namespace: namespaces.join( "." ) + }, handleObjIn ); + + // Init the event handler queue if we're the first + if ( !( handlers = events[ type ] ) ) { + handlers = events[ type ] = []; + handlers.delegateCount = 0; + + // Only use addEventListener if the special events handler returns false + if ( !special.setup || + special.setup.call( elem, data, namespaces, eventHandle ) === false ) { + + if ( elem.addEventListener ) { + elem.addEventListener( type, eventHandle ); + } + } + } + + if ( special.add ) { + special.add.call( elem, handleObj ); + + if ( !handleObj.handler.guid ) { + handleObj.handler.guid = handler.guid; + } + } + + // Add to the element's handler list, delegates in front + if ( selector ) { + handlers.splice( handlers.delegateCount++, 0, handleObj ); + } else { + handlers.push( handleObj ); + } + + // Keep track of which events have ever been used, for event optimization + jQuery.event.global[ type ] = true; + } + + }, + + // Detach an event or set of events from an element + remove: function( elem, types, handler, selector, mappedTypes ) { + + var j, origCount, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.hasData( elem ) && dataPriv.get( elem ); + + if ( !elemData || !( events = elemData.events ) ) { + return; + } + + // Once for each type.namespace in types; type may be omitted + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); + + // Unbind all events (on this namespace, if provided) for the element + if ( !type ) { + for ( type in events ) { + jQuery.event.remove( elem, type + types[ t ], handler, selector, true ); + } + continue; + } + + special = jQuery.event.special[ type ] || {}; + type = ( selector ? special.delegateType : special.bindType ) || type; + handlers = events[ type ] || []; + tmp = tmp[ 2 ] && + new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ); + + // Remove matching events + origCount = j = handlers.length; + while ( j-- ) { + handleObj = handlers[ j ]; + + if ( ( mappedTypes || origType === handleObj.origType ) && + ( !handler || handler.guid === handleObj.guid ) && + ( !tmp || tmp.test( handleObj.namespace ) ) && + ( !selector || selector === handleObj.selector || + selector === "**" && handleObj.selector ) ) { + handlers.splice( j, 1 ); + + if ( handleObj.selector ) { + handlers.delegateCount--; + } + if ( special.remove ) { + special.remove.call( elem, handleObj ); + } + } + } + + // Remove generic event handler if we removed something and no more handlers exist + // (avoids potential for endless recursion during removal of special event handlers) + if ( origCount && !handlers.length ) { + if ( !special.teardown || + special.teardown.call( elem, namespaces, elemData.handle ) === false ) { + + jQuery.removeEvent( elem, type, elemData.handle ); + } + + delete events[ type ]; + } + } + + // Remove data and the expando if it's no longer used + if ( jQuery.isEmptyObject( events ) ) { + dataPriv.remove( elem, "handle events" ); + } + }, + + dispatch: function( nativeEvent ) { + + var i, j, ret, matched, handleObj, handlerQueue, + args = new Array( arguments.length ), + + // Make a writable jQuery.Event from the native event object + event = jQuery.event.fix( nativeEvent ), + + handlers = ( + dataPriv.get( this, "events" ) || Object.create( null ) + )[ event.type ] || [], + special = jQuery.event.special[ event.type ] || {}; + + // Use the fix-ed jQuery.Event rather than the (read-only) native event + args[ 0 ] = event; + + for ( i = 1; i < arguments.length; i++ ) { + args[ i ] = arguments[ i ]; + } + + event.delegateTarget = this; + + // Call the preDispatch hook for the mapped type, and let it bail if desired + if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) { + return; + } + + // Determine handlers + handlerQueue = jQuery.event.handlers.call( this, event, handlers ); + + // Run delegates first; they may want to stop propagation beneath us + i = 0; + while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) { + event.currentTarget = matched.elem; + + j = 0; + while ( ( handleObj = matched.handlers[ j++ ] ) && + !event.isImmediatePropagationStopped() ) { + + // If the event is namespaced, then each handler is only invoked if it is + // specially universal or its namespaces are a superset of the event's. + if ( !event.rnamespace || handleObj.namespace === false || + event.rnamespace.test( handleObj.namespace ) ) { + + event.handleObj = handleObj; + event.data = handleObj.data; + + ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle || + handleObj.handler ).apply( matched.elem, args ); + + if ( ret !== undefined ) { + if ( ( event.result = ret ) === false ) { + event.preventDefault(); + event.stopPropagation(); + } + } + } + } + } + + // Call the postDispatch hook for the mapped type + if ( special.postDispatch ) { + special.postDispatch.call( this, event ); + } + + return event.result; + }, + + handlers: function( event, handlers ) { + var i, handleObj, sel, matchedHandlers, matchedSelectors, + handlerQueue = [], + delegateCount = handlers.delegateCount, + cur = event.target; + + // Find delegate handlers + if ( delegateCount && + + // Support: IE <=9 + // Black-hole SVG instance trees (trac-13180) + cur.nodeType && + + // Support: Firefox <=42 + // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861) + // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click + // Support: IE 11 only + // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343) + !( event.type === "click" && event.button >= 1 ) ) { + + for ( ; cur !== this; cur = cur.parentNode || this ) { + + // Don't check non-elements (#13208) + // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764) + if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) { + matchedHandlers = []; + matchedSelectors = {}; + for ( i = 0; i < delegateCount; i++ ) { + handleObj = handlers[ i ]; + + // Don't conflict with Object.prototype properties (#13203) + sel = handleObj.selector + " "; + + if ( matchedSelectors[ sel ] === undefined ) { + matchedSelectors[ sel ] = handleObj.needsContext ? + jQuery( sel, this ).index( cur ) > -1 : + jQuery.find( sel, this, null, [ cur ] ).length; + } + if ( matchedSelectors[ sel ] ) { + matchedHandlers.push( handleObj ); + } + } + if ( matchedHandlers.length ) { + handlerQueue.push( { elem: cur, handlers: matchedHandlers } ); + } + } + } + } + + // Add the remaining (directly-bound) handlers + cur = this; + if ( delegateCount < handlers.length ) { + handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } ); + } + + return handlerQueue; + }, + + addProp: function( name, hook ) { + Object.defineProperty( jQuery.Event.prototype, name, { + enumerable: true, + configurable: true, + + get: isFunction( hook ) ? + function() { + if ( this.originalEvent ) { + return hook( this.originalEvent ); + } + } : + function() { + if ( this.originalEvent ) { + return this.originalEvent[ name ]; + } + }, + + set: function( value ) { + Object.defineProperty( this, name, { + enumerable: true, + configurable: true, + writable: true, + value: value + } ); + } + } ); + }, + + fix: function( originalEvent ) { + return originalEvent[ jQuery.expando ] ? + originalEvent : + new jQuery.Event( originalEvent ); + }, + + special: { + load: { + + // Prevent triggered image.load events from bubbling to window.load + noBubble: true + }, + click: { + + // Utilize native event to ensure correct state for checkable inputs + setup: function( data ) { + + // For mutual compressibility with _default, replace `this` access with a local var. + // `|| data` is dead code meant only to preserve the variable through minification. + var el = this || data; + + // Claim the first handler + if ( rcheckableType.test( el.type ) && + el.click && nodeName( el, "input" ) ) { + + // dataPriv.set( el, "click", ... ) + leverageNative( el, "click", returnTrue ); + } + + // Return false to allow normal processing in the caller + return false; + }, + trigger: function( data ) { + + // For mutual compressibility with _default, replace `this` access with a local var. + // `|| data` is dead code meant only to preserve the variable through minification. + var el = this || data; + + // Force setup before triggering a click + if ( rcheckableType.test( el.type ) && + el.click && nodeName( el, "input" ) ) { + + leverageNative( el, "click" ); + } + + // Return non-false to allow normal event-path propagation + return true; + }, + + // For cross-browser consistency, suppress native .click() on links + // Also prevent it if we're currently inside a leveraged native-event stack + _default: function( event ) { + var target = event.target; + return rcheckableType.test( target.type ) && + target.click && nodeName( target, "input" ) && + dataPriv.get( target, "click" ) || + nodeName( target, "a" ); + } + }, + + beforeunload: { + postDispatch: function( event ) { + + // Support: Firefox 20+ + // Firefox doesn't alert if the returnValue field is not set. + if ( event.result !== undefined && event.originalEvent ) { + event.originalEvent.returnValue = event.result; + } + } + } + } +}; + +// Ensure the presence of an event listener that handles manually-triggered +// synthetic events by interrupting progress until reinvoked in response to +// *native* events that it fires directly, ensuring that state changes have +// already occurred before other listeners are invoked. +function leverageNative( el, type, expectSync ) { + + // Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add + if ( !expectSync ) { + if ( dataPriv.get( el, type ) === undefined ) { + jQuery.event.add( el, type, returnTrue ); + } + return; + } + + // Register the controller as a special universal handler for all event namespaces + dataPriv.set( el, type, false ); + jQuery.event.add( el, type, { + namespace: false, + handler: function( event ) { + var notAsync, result, + saved = dataPriv.get( this, type ); + + if ( ( event.isTrigger & 1 ) && this[ type ] ) { + + // Interrupt processing of the outer synthetic .trigger()ed event + // Saved data should be false in such cases, but might be a leftover capture object + // from an async native handler (gh-4350) + if ( !saved.length ) { + + // Store arguments for use when handling the inner native event + // There will always be at least one argument (an event object), so this array + // will not be confused with a leftover capture object. + saved = slice.call( arguments ); + dataPriv.set( this, type, saved ); + + // Trigger the native event and capture its result + // Support: IE <=9 - 11+ + // focus() and blur() are asynchronous + notAsync = expectSync( this, type ); + this[ type ](); + result = dataPriv.get( this, type ); + if ( saved !== result || notAsync ) { + dataPriv.set( this, type, false ); + } else { + result = {}; + } + if ( saved !== result ) { + + // Cancel the outer synthetic event + event.stopImmediatePropagation(); + event.preventDefault(); + + // Support: Chrome 86+ + // In Chrome, if an element having a focusout handler is blurred by + // clicking outside of it, it invokes the handler synchronously. If + // that handler calls `.remove()` on the element, the data is cleared, + // leaving `result` undefined. We need to guard against this. + return result && result.value; + } + + // If this is an inner synthetic event for an event with a bubbling surrogate + // (focus or blur), assume that the surrogate already propagated from triggering the + // native event and prevent that from happening again here. + // This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the + // bubbling surrogate propagates *after* the non-bubbling base), but that seems + // less bad than duplication. + } else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) { + event.stopPropagation(); + } + + // If this is a native event triggered above, everything is now in order + // Fire an inner synthetic event with the original arguments + } else if ( saved.length ) { + + // ...and capture the result + dataPriv.set( this, type, { + value: jQuery.event.trigger( + + // Support: IE <=9 - 11+ + // Extend with the prototype to reset the above stopImmediatePropagation() + jQuery.extend( saved[ 0 ], jQuery.Event.prototype ), + saved.slice( 1 ), + this + ) + } ); + + // Abort handling of the native event + event.stopImmediatePropagation(); + } + } + } ); +} + +jQuery.removeEvent = function( elem, type, handle ) { + + // This "if" is needed for plain objects + if ( elem.removeEventListener ) { + elem.removeEventListener( type, handle ); + } +}; + +jQuery.Event = function( src, props ) { + + // Allow instantiation without the 'new' keyword + if ( !( this instanceof jQuery.Event ) ) { + return new jQuery.Event( src, props ); + } + + // Event object + if ( src && src.type ) { + this.originalEvent = src; + this.type = src.type; + + // Events bubbling up the document may have been marked as prevented + // by a handler lower down the tree; reflect the correct value. + this.isDefaultPrevented = src.defaultPrevented || + src.defaultPrevented === undefined && + + // Support: Android <=2.3 only + src.returnValue === false ? + returnTrue : + returnFalse; + + // Create target properties + // Support: Safari <=6 - 7 only + // Target should not be a text node (#504, #13143) + this.target = ( src.target && src.target.nodeType === 3 ) ? + src.target.parentNode : + src.target; + + this.currentTarget = src.currentTarget; + this.relatedTarget = src.relatedTarget; + + // Event type + } else { + this.type = src; + } + + // Put explicitly provided properties onto the event object + if ( props ) { + jQuery.extend( this, props ); + } + + // Create a timestamp if incoming event doesn't have one + this.timeStamp = src && src.timeStamp || Date.now(); + + // Mark it as fixed + this[ jQuery.expando ] = true; +}; + +// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding +// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html +jQuery.Event.prototype = { + constructor: jQuery.Event, + isDefaultPrevented: returnFalse, + isPropagationStopped: returnFalse, + isImmediatePropagationStopped: returnFalse, + isSimulated: false, + + preventDefault: function() { + var e = this.originalEvent; + + this.isDefaultPrevented = returnTrue; + + if ( e && !this.isSimulated ) { + e.preventDefault(); + } + }, + stopPropagation: function() { + var e = this.originalEvent; + + this.isPropagationStopped = returnTrue; + + if ( e && !this.isSimulated ) { + e.stopPropagation(); + } + }, + stopImmediatePropagation: function() { + var e = this.originalEvent; + + this.isImmediatePropagationStopped = returnTrue; + + if ( e && !this.isSimulated ) { + e.stopImmediatePropagation(); + } + + this.stopPropagation(); + } +}; + +// Includes all common event props including KeyEvent and MouseEvent specific props +jQuery.each( { + altKey: true, + bubbles: true, + cancelable: true, + changedTouches: true, + ctrlKey: true, + detail: true, + eventPhase: true, + metaKey: true, + pageX: true, + pageY: true, + shiftKey: true, + view: true, + "char": true, + code: true, + charCode: true, + key: true, + keyCode: true, + button: true, + buttons: true, + clientX: true, + clientY: true, + offsetX: true, + offsetY: true, + pointerId: true, + pointerType: true, + screenX: true, + screenY: true, + targetTouches: true, + toElement: true, + touches: true, + which: true +}, jQuery.event.addProp ); + +jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) { + jQuery.event.special[ type ] = { + + // Utilize native event if possible so blur/focus sequence is correct + setup: function() { + + // Claim the first handler + // dataPriv.set( this, "focus", ... ) + // dataPriv.set( this, "blur", ... ) + leverageNative( this, type, expectSync ); + + // Return false to allow normal processing in the caller + return false; + }, + trigger: function() { + + // Force setup before trigger + leverageNative( this, type ); + + // Return non-false to allow normal event-path propagation + return true; + }, + + // Suppress native focus or blur as it's already being fired + // in leverageNative. + _default: function() { + return true; + }, + + delegateType: delegateType + }; +} ); + +// Create mouseenter/leave events using mouseover/out and event-time checks +// so that event delegation works in jQuery. +// Do the same for pointerenter/pointerleave and pointerover/pointerout +// +// Support: Safari 7 only +// Safari sends mouseenter too often; see: +// https://bugs.chromium.org/p/chromium/issues/detail?id=470258 +// for the description of the bug (it existed in older Chrome versions as well). +jQuery.each( { + mouseenter: "mouseover", + mouseleave: "mouseout", + pointerenter: "pointerover", + pointerleave: "pointerout" +}, function( orig, fix ) { + jQuery.event.special[ orig ] = { + delegateType: fix, + bindType: fix, + + handle: function( event ) { + var ret, + target = this, + related = event.relatedTarget, + handleObj = event.handleObj; + + // For mouseenter/leave call the handler if related is outside the target. + // NB: No relatedTarget if the mouse left/entered the browser window + if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) { + event.type = handleObj.origType; + ret = handleObj.handler.apply( this, arguments ); + event.type = fix; + } + return ret; + } + }; +} ); + +jQuery.fn.extend( { + + on: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn ); + }, + one: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn, 1 ); + }, + off: function( types, selector, fn ) { + var handleObj, type; + if ( types && types.preventDefault && types.handleObj ) { + + // ( event ) dispatched jQuery.Event + handleObj = types.handleObj; + jQuery( types.delegateTarget ).off( + handleObj.namespace ? + handleObj.origType + "." + handleObj.namespace : + handleObj.origType, + handleObj.selector, + handleObj.handler + ); + return this; + } + if ( typeof types === "object" ) { + + // ( types-object [, selector] ) + for ( type in types ) { + this.off( type, selector, types[ type ] ); + } + return this; + } + if ( selector === false || typeof selector === "function" ) { + + // ( types [, fn] ) + fn = selector; + selector = undefined; + } + if ( fn === false ) { + fn = returnFalse; + } + return this.each( function() { + jQuery.event.remove( this, types, fn, selector ); + } ); + } +} ); + + +var + + // Support: IE <=10 - 11, Edge 12 - 13 only + // In IE/Edge using regex groups here causes severe slowdowns. + // See https://connect.microsoft.com/IE/feedback/details/1736512/ + rnoInnerhtml = /\s*$/g; + +// Prefer a tbody over its parent table for containing new rows +function manipulationTarget( elem, content ) { + if ( nodeName( elem, "table" ) && + nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) { + + return jQuery( elem ).children( "tbody" )[ 0 ] || elem; + } + + return elem; +} + +// Replace/restore the type attribute of script elements for safe DOM manipulation +function disableScript( elem ) { + elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type; + return elem; +} +function restoreScript( elem ) { + if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) { + elem.type = elem.type.slice( 5 ); + } else { + elem.removeAttribute( "type" ); + } + + return elem; +} + +function cloneCopyEvent( src, dest ) { + var i, l, type, pdataOld, udataOld, udataCur, events; + + if ( dest.nodeType !== 1 ) { + return; + } + + // 1. Copy private data: events, handlers, etc. + if ( dataPriv.hasData( src ) ) { + pdataOld = dataPriv.get( src ); + events = pdataOld.events; + + if ( events ) { + dataPriv.remove( dest, "handle events" ); + + for ( type in events ) { + for ( i = 0, l = events[ type ].length; i < l; i++ ) { + jQuery.event.add( dest, type, events[ type ][ i ] ); + } + } + } + } + + // 2. Copy user data + if ( dataUser.hasData( src ) ) { + udataOld = dataUser.access( src ); + udataCur = jQuery.extend( {}, udataOld ); + + dataUser.set( dest, udataCur ); + } +} + +// Fix IE bugs, see support tests +function fixInput( src, dest ) { + var nodeName = dest.nodeName.toLowerCase(); + + // Fails to persist the checked state of a cloned checkbox or radio button. + if ( nodeName === "input" && rcheckableType.test( src.type ) ) { + dest.checked = src.checked; + + // Fails to return the selected option to the default selected state when cloning options + } else if ( nodeName === "input" || nodeName === "textarea" ) { + dest.defaultValue = src.defaultValue; + } +} + +function domManip( collection, args, callback, ignored ) { + + // Flatten any nested arrays + args = flat( args ); + + var fragment, first, scripts, hasScripts, node, doc, + i = 0, + l = collection.length, + iNoClone = l - 1, + value = args[ 0 ], + valueIsFunction = isFunction( value ); + + // We can't cloneNode fragments that contain checked, in WebKit + if ( valueIsFunction || + ( l > 1 && typeof value === "string" && + !support.checkClone && rchecked.test( value ) ) ) { + return collection.each( function( index ) { + var self = collection.eq( index ); + if ( valueIsFunction ) { + args[ 0 ] = value.call( this, index, self.html() ); + } + domManip( self, args, callback, ignored ); + } ); + } + + if ( l ) { + fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored ); + first = fragment.firstChild; + + if ( fragment.childNodes.length === 1 ) { + fragment = first; + } + + // Require either new content or an interest in ignored elements to invoke the callback + if ( first || ignored ) { + scripts = jQuery.map( getAll( fragment, "script" ), disableScript ); + hasScripts = scripts.length; + + // Use the original fragment for the last item + // instead of the first because it can end up + // being emptied incorrectly in certain situations (#8070). + for ( ; i < l; i++ ) { + node = fragment; + + if ( i !== iNoClone ) { + node = jQuery.clone( node, true, true ); + + // Keep references to cloned scripts for later restoration + if ( hasScripts ) { + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( scripts, getAll( node, "script" ) ); + } + } + + callback.call( collection[ i ], node, i ); + } + + if ( hasScripts ) { + doc = scripts[ scripts.length - 1 ].ownerDocument; + + // Reenable scripts + jQuery.map( scripts, restoreScript ); + + // Evaluate executable scripts on first document insertion + for ( i = 0; i < hasScripts; i++ ) { + node = scripts[ i ]; + if ( rscriptType.test( node.type || "" ) && + !dataPriv.access( node, "globalEval" ) && + jQuery.contains( doc, node ) ) { + + if ( node.src && ( node.type || "" ).toLowerCase() !== "module" ) { + + // Optional AJAX dependency, but won't run scripts if not present + if ( jQuery._evalUrl && !node.noModule ) { + jQuery._evalUrl( node.src, { + nonce: node.nonce || node.getAttribute( "nonce" ) + }, doc ); + } + } else { + DOMEval( node.textContent.replace( rcleanScript, "" ), node, doc ); + } + } + } + } + } + } + + return collection; +} + +function remove( elem, selector, keepData ) { + var node, + nodes = selector ? jQuery.filter( selector, elem ) : elem, + i = 0; + + for ( ; ( node = nodes[ i ] ) != null; i++ ) { + if ( !keepData && node.nodeType === 1 ) { + jQuery.cleanData( getAll( node ) ); + } + + if ( node.parentNode ) { + if ( keepData && isAttached( node ) ) { + setGlobalEval( getAll( node, "script" ) ); + } + node.parentNode.removeChild( node ); + } + } + + return elem; +} + +jQuery.extend( { + htmlPrefilter: function( html ) { + return html; + }, + + clone: function( elem, dataAndEvents, deepDataAndEvents ) { + var i, l, srcElements, destElements, + clone = elem.cloneNode( true ), + inPage = isAttached( elem ); + + // Fix IE cloning issues + if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && + !jQuery.isXMLDoc( elem ) ) { + + // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2 + destElements = getAll( clone ); + srcElements = getAll( elem ); + + for ( i = 0, l = srcElements.length; i < l; i++ ) { + fixInput( srcElements[ i ], destElements[ i ] ); + } + } + + // Copy the events from the original to the clone + if ( dataAndEvents ) { + if ( deepDataAndEvents ) { + srcElements = srcElements || getAll( elem ); + destElements = destElements || getAll( clone ); + + for ( i = 0, l = srcElements.length; i < l; i++ ) { + cloneCopyEvent( srcElements[ i ], destElements[ i ] ); + } + } else { + cloneCopyEvent( elem, clone ); + } + } + + // Preserve script evaluation history + destElements = getAll( clone, "script" ); + if ( destElements.length > 0 ) { + setGlobalEval( destElements, !inPage && getAll( elem, "script" ) ); + } + + // Return the cloned set + return clone; + }, + + cleanData: function( elems ) { + var data, elem, type, + special = jQuery.event.special, + i = 0; + + for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) { + if ( acceptData( elem ) ) { + if ( ( data = elem[ dataPriv.expando ] ) ) { + if ( data.events ) { + for ( type in data.events ) { + if ( special[ type ] ) { + jQuery.event.remove( elem, type ); + + // This is a shortcut to avoid jQuery.event.remove's overhead + } else { + jQuery.removeEvent( elem, type, data.handle ); + } + } + } + + // Support: Chrome <=35 - 45+ + // Assign undefined instead of using delete, see Data#remove + elem[ dataPriv.expando ] = undefined; + } + if ( elem[ dataUser.expando ] ) { + + // Support: Chrome <=35 - 45+ + // Assign undefined instead of using delete, see Data#remove + elem[ dataUser.expando ] = undefined; + } + } + } + } +} ); + +jQuery.fn.extend( { + detach: function( selector ) { + return remove( this, selector, true ); + }, + + remove: function( selector ) { + return remove( this, selector ); + }, + + text: function( value ) { + return access( this, function( value ) { + return value === undefined ? + jQuery.text( this ) : + this.empty().each( function() { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + this.textContent = value; + } + } ); + }, null, value, arguments.length ); + }, + + append: function() { + return domManip( this, arguments, function( elem ) { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + var target = manipulationTarget( this, elem ); + target.appendChild( elem ); + } + } ); + }, + + prepend: function() { + return domManip( this, arguments, function( elem ) { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + var target = manipulationTarget( this, elem ); + target.insertBefore( elem, target.firstChild ); + } + } ); + }, + + before: function() { + return domManip( this, arguments, function( elem ) { + if ( this.parentNode ) { + this.parentNode.insertBefore( elem, this ); + } + } ); + }, + + after: function() { + return domManip( this, arguments, function( elem ) { + if ( this.parentNode ) { + this.parentNode.insertBefore( elem, this.nextSibling ); + } + } ); + }, + + empty: function() { + var elem, + i = 0; + + for ( ; ( elem = this[ i ] ) != null; i++ ) { + if ( elem.nodeType === 1 ) { + + // Prevent memory leaks + jQuery.cleanData( getAll( elem, false ) ); + + // Remove any remaining nodes + elem.textContent = ""; + } + } + + return this; + }, + + clone: function( dataAndEvents, deepDataAndEvents ) { + dataAndEvents = dataAndEvents == null ? false : dataAndEvents; + deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents; + + return this.map( function() { + return jQuery.clone( this, dataAndEvents, deepDataAndEvents ); + } ); + }, + + html: function( value ) { + return access( this, function( value ) { + var elem = this[ 0 ] || {}, + i = 0, + l = this.length; + + if ( value === undefined && elem.nodeType === 1 ) { + return elem.innerHTML; + } + + // See if we can take a shortcut and just use innerHTML + if ( typeof value === "string" && !rnoInnerhtml.test( value ) && + !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) { + + value = jQuery.htmlPrefilter( value ); + + try { + for ( ; i < l; i++ ) { + elem = this[ i ] || {}; + + // Remove element nodes and prevent memory leaks + if ( elem.nodeType === 1 ) { + jQuery.cleanData( getAll( elem, false ) ); + elem.innerHTML = value; + } + } + + elem = 0; + + // If using innerHTML throws an exception, use the fallback method + } catch ( e ) {} + } + + if ( elem ) { + this.empty().append( value ); + } + }, null, value, arguments.length ); + }, + + replaceWith: function() { + var ignored = []; + + // Make the changes, replacing each non-ignored context element with the new content + return domManip( this, arguments, function( elem ) { + var parent = this.parentNode; + + if ( jQuery.inArray( this, ignored ) < 0 ) { + jQuery.cleanData( getAll( this ) ); + if ( parent ) { + parent.replaceChild( elem, this ); + } + } + + // Force callback invocation + }, ignored ); + } +} ); + +jQuery.each( { + appendTo: "append", + prependTo: "prepend", + insertBefore: "before", + insertAfter: "after", + replaceAll: "replaceWith" +}, function( name, original ) { + jQuery.fn[ name ] = function( selector ) { + var elems, + ret = [], + insert = jQuery( selector ), + last = insert.length - 1, + i = 0; + + for ( ; i <= last; i++ ) { + elems = i === last ? this : this.clone( true ); + jQuery( insert[ i ] )[ original ]( elems ); + + // Support: Android <=4.0 only, PhantomJS 1 only + // .get() because push.apply(_, arraylike) throws on ancient WebKit + push.apply( ret, elems.get() ); + } + + return this.pushStack( ret ); + }; +} ); +var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" ); + +var getStyles = function( elem ) { + + // Support: IE <=11 only, Firefox <=30 (#15098, #14150) + // IE throws on elements created in popups + // FF meanwhile throws on frame elements through "defaultView.getComputedStyle" + var view = elem.ownerDocument.defaultView; + + if ( !view || !view.opener ) { + view = window; + } + + return view.getComputedStyle( elem ); + }; + +var swap = function( elem, options, callback ) { + var ret, name, + old = {}; + + // Remember the old values, and insert the new ones + for ( name in options ) { + old[ name ] = elem.style[ name ]; + elem.style[ name ] = options[ name ]; + } + + ret = callback.call( elem ); + + // Revert the old values + for ( name in options ) { + elem.style[ name ] = old[ name ]; + } + + return ret; +}; + + +var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" ); + + + +( function() { + + // Executing both pixelPosition & boxSizingReliable tests require only one layout + // so they're executed at the same time to save the second computation. + function computeStyleTests() { + + // This is a singleton, we need to execute it only once + if ( !div ) { + return; + } + + container.style.cssText = "position:absolute;left:-11111px;width:60px;" + + "margin-top:1px;padding:0;border:0"; + div.style.cssText = + "position:relative;display:block;box-sizing:border-box;overflow:scroll;" + + "margin:auto;border:1px;padding:1px;" + + "width:60%;top:1%"; + documentElement.appendChild( container ).appendChild( div ); + + var divStyle = window.getComputedStyle( div ); + pixelPositionVal = divStyle.top !== "1%"; + + // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44 + reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12; + + // Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3 + // Some styles come back with percentage values, even though they shouldn't + div.style.right = "60%"; + pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36; + + // Support: IE 9 - 11 only + // Detect misreporting of content dimensions for box-sizing:border-box elements + boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36; + + // Support: IE 9 only + // Detect overflow:scroll screwiness (gh-3699) + // Support: Chrome <=64 + // Don't get tricked when zoom affects offsetWidth (gh-4029) + div.style.position = "absolute"; + scrollboxSizeVal = roundPixelMeasures( div.offsetWidth / 3 ) === 12; + + documentElement.removeChild( container ); + + // Nullify the div so it wouldn't be stored in the memory and + // it will also be a sign that checks already performed + div = null; + } + + function roundPixelMeasures( measure ) { + return Math.round( parseFloat( measure ) ); + } + + var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal, + reliableTrDimensionsVal, reliableMarginLeftVal, + container = document.createElement( "div" ), + div = document.createElement( "div" ); + + // Finish early in limited (non-browser) environments + if ( !div.style ) { + return; + } + + // Support: IE <=9 - 11 only + // Style of cloned element affects source element cloned (#8908) + div.style.backgroundClip = "content-box"; + div.cloneNode( true ).style.backgroundClip = ""; + support.clearCloneStyle = div.style.backgroundClip === "content-box"; + + jQuery.extend( support, { + boxSizingReliable: function() { + computeStyleTests(); + return boxSizingReliableVal; + }, + pixelBoxStyles: function() { + computeStyleTests(); + return pixelBoxStylesVal; + }, + pixelPosition: function() { + computeStyleTests(); + return pixelPositionVal; + }, + reliableMarginLeft: function() { + computeStyleTests(); + return reliableMarginLeftVal; + }, + scrollboxSize: function() { + computeStyleTests(); + return scrollboxSizeVal; + }, + + // Support: IE 9 - 11+, Edge 15 - 18+ + // IE/Edge misreport `getComputedStyle` of table rows with width/height + // set in CSS while `offset*` properties report correct values. + // Behavior in IE 9 is more subtle than in newer versions & it passes + // some versions of this test; make sure not to make it pass there! + // + // Support: Firefox 70+ + // Only Firefox includes border widths + // in computed dimensions. (gh-4529) + reliableTrDimensions: function() { + var table, tr, trChild, trStyle; + if ( reliableTrDimensionsVal == null ) { + table = document.createElement( "table" ); + tr = document.createElement( "tr" ); + trChild = document.createElement( "div" ); + + table.style.cssText = "position:absolute;left:-11111px;border-collapse:separate"; + tr.style.cssText = "border:1px solid"; + + // Support: Chrome 86+ + // Height set through cssText does not get applied. + // Computed height then comes back as 0. + tr.style.height = "1px"; + trChild.style.height = "9px"; + + // Support: Android 8 Chrome 86+ + // In our bodyBackground.html iframe, + // display for all div elements is set to "inline", + // which causes a problem only in Android 8 Chrome 86. + // Ensuring the div is display: block + // gets around this issue. + trChild.style.display = "block"; + + documentElement + .appendChild( table ) + .appendChild( tr ) + .appendChild( trChild ); + + trStyle = window.getComputedStyle( tr ); + reliableTrDimensionsVal = ( parseInt( trStyle.height, 10 ) + + parseInt( trStyle.borderTopWidth, 10 ) + + parseInt( trStyle.borderBottomWidth, 10 ) ) === tr.offsetHeight; + + documentElement.removeChild( table ); + } + return reliableTrDimensionsVal; + } + } ); +} )(); + + +function curCSS( elem, name, computed ) { + var width, minWidth, maxWidth, ret, + + // Support: Firefox 51+ + // Retrieving style before computed somehow + // fixes an issue with getting wrong values + // on detached elements + style = elem.style; + + computed = computed || getStyles( elem ); + + // getPropertyValue is needed for: + // .css('filter') (IE 9 only, #12537) + // .css('--customProperty) (#3144) + if ( computed ) { + ret = computed.getPropertyValue( name ) || computed[ name ]; + + if ( ret === "" && !isAttached( elem ) ) { + ret = jQuery.style( elem, name ); + } + + // A tribute to the "awesome hack by Dean Edwards" + // Android Browser returns percentage for some values, + // but width seems to be reliably pixels. + // This is against the CSSOM draft spec: + // https://drafts.csswg.org/cssom/#resolved-values + if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) { + + // Remember the original values + width = style.width; + minWidth = style.minWidth; + maxWidth = style.maxWidth; + + // Put in the new values to get a computed value out + style.minWidth = style.maxWidth = style.width = ret; + ret = computed.width; + + // Revert the changed values + style.width = width; + style.minWidth = minWidth; + style.maxWidth = maxWidth; + } + } + + return ret !== undefined ? + + // Support: IE <=9 - 11 only + // IE returns zIndex value as an integer. + ret + "" : + ret; +} + + +function addGetHookIf( conditionFn, hookFn ) { + + // Define the hook, we'll check on the first run if it's really needed. + return { + get: function() { + if ( conditionFn() ) { + + // Hook not needed (or it's not possible to use it due + // to missing dependency), remove it. + delete this.get; + return; + } + + // Hook needed; redefine it so that the support test is not executed again. + return ( this.get = hookFn ).apply( this, arguments ); + } + }; +} + + +var cssPrefixes = [ "Webkit", "Moz", "ms" ], + emptyStyle = document.createElement( "div" ).style, + vendorProps = {}; + +// Return a vendor-prefixed property or undefined +function vendorPropName( name ) { + + // Check for vendor prefixed names + var capName = name[ 0 ].toUpperCase() + name.slice( 1 ), + i = cssPrefixes.length; + + while ( i-- ) { + name = cssPrefixes[ i ] + capName; + if ( name in emptyStyle ) { + return name; + } + } +} + +// Return a potentially-mapped jQuery.cssProps or vendor prefixed property +function finalPropName( name ) { + var final = jQuery.cssProps[ name ] || vendorProps[ name ]; + + if ( final ) { + return final; + } + if ( name in emptyStyle ) { + return name; + } + return vendorProps[ name ] = vendorPropName( name ) || name; +} + + +var + + // Swappable if display is none or starts with table + // except "table", "table-cell", or "table-caption" + // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display + rdisplayswap = /^(none|table(?!-c[ea]).+)/, + rcustomProp = /^--/, + cssShow = { position: "absolute", visibility: "hidden", display: "block" }, + cssNormalTransform = { + letterSpacing: "0", + fontWeight: "400" + }; + +function setPositiveNumber( _elem, value, subtract ) { + + // Any relative (+/-) values have already been + // normalized at this point + var matches = rcssNum.exec( value ); + return matches ? + + // Guard against undefined "subtract", e.g., when used as in cssHooks + Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) : + value; +} + +function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) { + var i = dimension === "width" ? 1 : 0, + extra = 0, + delta = 0; + + // Adjustment may not be necessary + if ( box === ( isBorderBox ? "border" : "content" ) ) { + return 0; + } + + for ( ; i < 4; i += 2 ) { + + // Both box models exclude margin + if ( box === "margin" ) { + delta += jQuery.css( elem, box + cssExpand[ i ], true, styles ); + } + + // If we get here with a content-box, we're seeking "padding" or "border" or "margin" + if ( !isBorderBox ) { + + // Add padding + delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + + // For "border" or "margin", add border + if ( box !== "padding" ) { + delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + + // But still keep track of it otherwise + } else { + extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + } + + // If we get here with a border-box (content + padding + border), we're seeking "content" or + // "padding" or "margin" + } else { + + // For "content", subtract padding + if ( box === "content" ) { + delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + } + + // For "content" or "padding", subtract border + if ( box !== "margin" ) { + delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + } + } + } + + // Account for positive content-box scroll gutter when requested by providing computedVal + if ( !isBorderBox && computedVal >= 0 ) { + + // offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border + // Assuming integer scroll gutter, subtract the rest and round down + delta += Math.max( 0, Math.ceil( + elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] - + computedVal - + delta - + extra - + 0.5 + + // If offsetWidth/offsetHeight is unknown, then we can't determine content-box scroll gutter + // Use an explicit zero to avoid NaN (gh-3964) + ) ) || 0; + } + + return delta; +} + +function getWidthOrHeight( elem, dimension, extra ) { + + // Start with computed style + var styles = getStyles( elem ), + + // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-4322). + // Fake content-box until we know it's needed to know the true value. + boxSizingNeeded = !support.boxSizingReliable() || extra, + isBorderBox = boxSizingNeeded && + jQuery.css( elem, "boxSizing", false, styles ) === "border-box", + valueIsBorderBox = isBorderBox, + + val = curCSS( elem, dimension, styles ), + offsetProp = "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ); + + // Support: Firefox <=54 + // Return a confounding non-pixel value or feign ignorance, as appropriate. + if ( rnumnonpx.test( val ) ) { + if ( !extra ) { + return val; + } + val = "auto"; + } + + + // Support: IE 9 - 11 only + // Use offsetWidth/offsetHeight for when box sizing is unreliable. + // In those cases, the computed value can be trusted to be border-box. + if ( ( !support.boxSizingReliable() && isBorderBox || + + // Support: IE 10 - 11+, Edge 15 - 18+ + // IE/Edge misreport `getComputedStyle` of table rows with width/height + // set in CSS while `offset*` properties report correct values. + // Interestingly, in some cases IE 9 doesn't suffer from this issue. + !support.reliableTrDimensions() && nodeName( elem, "tr" ) || + + // Fall back to offsetWidth/offsetHeight when value is "auto" + // This happens for inline elements with no explicit setting (gh-3571) + val === "auto" || + + // Support: Android <=4.1 - 4.3 only + // Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602) + !parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) && + + // Make sure the element is visible & connected + elem.getClientRects().length ) { + + isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box"; + + // Where available, offsetWidth/offsetHeight approximate border box dimensions. + // Where not available (e.g., SVG), assume unreliable box-sizing and interpret the + // retrieved value as a content box dimension. + valueIsBorderBox = offsetProp in elem; + if ( valueIsBorderBox ) { + val = elem[ offsetProp ]; + } + } + + // Normalize "" and auto + val = parseFloat( val ) || 0; + + // Adjust for the element's box model + return ( val + + boxModelAdjustment( + elem, + dimension, + extra || ( isBorderBox ? "border" : "content" ), + valueIsBorderBox, + styles, + + // Provide the current computed size to request scroll gutter calculation (gh-3589) + val + ) + ) + "px"; +} + +jQuery.extend( { + + // Add in style property hooks for overriding the default + // behavior of getting and setting a style property + cssHooks: { + opacity: { + get: function( elem, computed ) { + if ( computed ) { + + // We should always get a number back from opacity + var ret = curCSS( elem, "opacity" ); + return ret === "" ? "1" : ret; + } + } + } + }, + + // Don't automatically add "px" to these possibly-unitless properties + cssNumber: { + "animationIterationCount": true, + "columnCount": true, + "fillOpacity": true, + "flexGrow": true, + "flexShrink": true, + "fontWeight": true, + "gridArea": true, + "gridColumn": true, + "gridColumnEnd": true, + "gridColumnStart": true, + "gridRow": true, + "gridRowEnd": true, + "gridRowStart": true, + "lineHeight": true, + "opacity": true, + "order": true, + "orphans": true, + "widows": true, + "zIndex": true, + "zoom": true + }, + + // Add in properties whose names you wish to fix before + // setting or getting the value + cssProps: {}, + + // Get and set the style property on a DOM Node + style: function( elem, name, value, extra ) { + + // Don't set styles on text and comment nodes + if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) { + return; + } + + // Make sure that we're working with the right name + var ret, type, hooks, + origName = camelCase( name ), + isCustomProp = rcustomProp.test( name ), + style = elem.style; + + // Make sure that we're working with the right name. We don't + // want to query the value if it is a CSS custom property + // since they are user-defined. + if ( !isCustomProp ) { + name = finalPropName( origName ); + } + + // Gets hook for the prefixed version, then unprefixed version + hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; + + // Check if we're setting a value + if ( value !== undefined ) { + type = typeof value; + + // Convert "+=" or "-=" to relative numbers (#7345) + if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) { + value = adjustCSS( elem, name, ret ); + + // Fixes bug #9237 + type = "number"; + } + + // Make sure that null and NaN values aren't set (#7116) + if ( value == null || value !== value ) { + return; + } + + // If a number was passed in, add the unit (except for certain CSS properties) + // The isCustomProp check can be removed in jQuery 4.0 when we only auto-append + // "px" to a few hardcoded values. + if ( type === "number" && !isCustomProp ) { + value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" ); + } + + // background-* props affect original clone's values + if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) { + style[ name ] = "inherit"; + } + + // If a hook was provided, use that value, otherwise just set the specified value + if ( !hooks || !( "set" in hooks ) || + ( value = hooks.set( elem, value, extra ) ) !== undefined ) { + + if ( isCustomProp ) { + style.setProperty( name, value ); + } else { + style[ name ] = value; + } + } + + } else { + + // If a hook was provided get the non-computed value from there + if ( hooks && "get" in hooks && + ( ret = hooks.get( elem, false, extra ) ) !== undefined ) { + + return ret; + } + + // Otherwise just get the value from the style object + return style[ name ]; + } + }, + + css: function( elem, name, extra, styles ) { + var val, num, hooks, + origName = camelCase( name ), + isCustomProp = rcustomProp.test( name ); + + // Make sure that we're working with the right name. We don't + // want to modify the value if it is a CSS custom property + // since they are user-defined. + if ( !isCustomProp ) { + name = finalPropName( origName ); + } + + // Try prefixed name followed by the unprefixed name + hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; + + // If a hook was provided get the computed value from there + if ( hooks && "get" in hooks ) { + val = hooks.get( elem, true, extra ); + } + + // Otherwise, if a way to get the computed value exists, use that + if ( val === undefined ) { + val = curCSS( elem, name, styles ); + } + + // Convert "normal" to computed value + if ( val === "normal" && name in cssNormalTransform ) { + val = cssNormalTransform[ name ]; + } + + // Make numeric if forced or a qualifier was provided and val looks numeric + if ( extra === "" || extra ) { + num = parseFloat( val ); + return extra === true || isFinite( num ) ? num || 0 : val; + } + + return val; + } +} ); + +jQuery.each( [ "height", "width" ], function( _i, dimension ) { + jQuery.cssHooks[ dimension ] = { + get: function( elem, computed, extra ) { + if ( computed ) { + + // Certain elements can have dimension info if we invisibly show them + // but it must have a current display style that would benefit + return rdisplayswap.test( jQuery.css( elem, "display" ) ) && + + // Support: Safari 8+ + // Table columns in Safari have non-zero offsetWidth & zero + // getBoundingClientRect().width unless display is changed. + // Support: IE <=11 only + // Running getBoundingClientRect on a disconnected node + // in IE throws an error. + ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ? + swap( elem, cssShow, function() { + return getWidthOrHeight( elem, dimension, extra ); + } ) : + getWidthOrHeight( elem, dimension, extra ); + } + }, + + set: function( elem, value, extra ) { + var matches, + styles = getStyles( elem ), + + // Only read styles.position if the test has a chance to fail + // to avoid forcing a reflow. + scrollboxSizeBuggy = !support.scrollboxSize() && + styles.position === "absolute", + + // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-3991) + boxSizingNeeded = scrollboxSizeBuggy || extra, + isBorderBox = boxSizingNeeded && + jQuery.css( elem, "boxSizing", false, styles ) === "border-box", + subtract = extra ? + boxModelAdjustment( + elem, + dimension, + extra, + isBorderBox, + styles + ) : + 0; + + // Account for unreliable border-box dimensions by comparing offset* to computed and + // faking a content-box to get border and padding (gh-3699) + if ( isBorderBox && scrollboxSizeBuggy ) { + subtract -= Math.ceil( + elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] - + parseFloat( styles[ dimension ] ) - + boxModelAdjustment( elem, dimension, "border", false, styles ) - + 0.5 + ); + } + + // Convert to pixels if value adjustment is needed + if ( subtract && ( matches = rcssNum.exec( value ) ) && + ( matches[ 3 ] || "px" ) !== "px" ) { + + elem.style[ dimension ] = value; + value = jQuery.css( elem, dimension ); + } + + return setPositiveNumber( elem, value, subtract ); + } + }; +} ); + +jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft, + function( elem, computed ) { + if ( computed ) { + return ( parseFloat( curCSS( elem, "marginLeft" ) ) || + elem.getBoundingClientRect().left - + swap( elem, { marginLeft: 0 }, function() { + return elem.getBoundingClientRect().left; + } ) + ) + "px"; + } + } +); + +// These hooks are used by animate to expand properties +jQuery.each( { + margin: "", + padding: "", + border: "Width" +}, function( prefix, suffix ) { + jQuery.cssHooks[ prefix + suffix ] = { + expand: function( value ) { + var i = 0, + expanded = {}, + + // Assumes a single number if not a string + parts = typeof value === "string" ? value.split( " " ) : [ value ]; + + for ( ; i < 4; i++ ) { + expanded[ prefix + cssExpand[ i ] + suffix ] = + parts[ i ] || parts[ i - 2 ] || parts[ 0 ]; + } + + return expanded; + } + }; + + if ( prefix !== "margin" ) { + jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber; + } +} ); + +jQuery.fn.extend( { + css: function( name, value ) { + return access( this, function( elem, name, value ) { + var styles, len, + map = {}, + i = 0; + + if ( Array.isArray( name ) ) { + styles = getStyles( elem ); + len = name.length; + + for ( ; i < len; i++ ) { + map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles ); + } + + return map; + } + + return value !== undefined ? + jQuery.style( elem, name, value ) : + jQuery.css( elem, name ); + }, name, value, arguments.length > 1 ); + } +} ); + + +function Tween( elem, options, prop, end, easing ) { + return new Tween.prototype.init( elem, options, prop, end, easing ); +} +jQuery.Tween = Tween; + +Tween.prototype = { + constructor: Tween, + init: function( elem, options, prop, end, easing, unit ) { + this.elem = elem; + this.prop = prop; + this.easing = easing || jQuery.easing._default; + this.options = options; + this.start = this.now = this.cur(); + this.end = end; + this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" ); + }, + cur: function() { + var hooks = Tween.propHooks[ this.prop ]; + + return hooks && hooks.get ? + hooks.get( this ) : + Tween.propHooks._default.get( this ); + }, + run: function( percent ) { + var eased, + hooks = Tween.propHooks[ this.prop ]; + + if ( this.options.duration ) { + this.pos = eased = jQuery.easing[ this.easing ]( + percent, this.options.duration * percent, 0, 1, this.options.duration + ); + } else { + this.pos = eased = percent; + } + this.now = ( this.end - this.start ) * eased + this.start; + + if ( this.options.step ) { + this.options.step.call( this.elem, this.now, this ); + } + + if ( hooks && hooks.set ) { + hooks.set( this ); + } else { + Tween.propHooks._default.set( this ); + } + return this; + } +}; + +Tween.prototype.init.prototype = Tween.prototype; + +Tween.propHooks = { + _default: { + get: function( tween ) { + var result; + + // Use a property on the element directly when it is not a DOM element, + // or when there is no matching style property that exists. + if ( tween.elem.nodeType !== 1 || + tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) { + return tween.elem[ tween.prop ]; + } + + // Passing an empty string as a 3rd parameter to .css will automatically + // attempt a parseFloat and fallback to a string if the parse fails. + // Simple values such as "10px" are parsed to Float; + // complex values such as "rotate(1rad)" are returned as-is. + result = jQuery.css( tween.elem, tween.prop, "" ); + + // Empty strings, null, undefined and "auto" are converted to 0. + return !result || result === "auto" ? 0 : result; + }, + set: function( tween ) { + + // Use step hook for back compat. + // Use cssHook if its there. + // Use .style if available and use plain properties where available. + if ( jQuery.fx.step[ tween.prop ] ) { + jQuery.fx.step[ tween.prop ]( tween ); + } else if ( tween.elem.nodeType === 1 && ( + jQuery.cssHooks[ tween.prop ] || + tween.elem.style[ finalPropName( tween.prop ) ] != null ) ) { + jQuery.style( tween.elem, tween.prop, tween.now + tween.unit ); + } else { + tween.elem[ tween.prop ] = tween.now; + } + } + } +}; + +// Support: IE <=9 only +// Panic based approach to setting things on disconnected nodes +Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = { + set: function( tween ) { + if ( tween.elem.nodeType && tween.elem.parentNode ) { + tween.elem[ tween.prop ] = tween.now; + } + } +}; + +jQuery.easing = { + linear: function( p ) { + return p; + }, + swing: function( p ) { + return 0.5 - Math.cos( p * Math.PI ) / 2; + }, + _default: "swing" +}; + +jQuery.fx = Tween.prototype.init; + +// Back compat <1.8 extension point +jQuery.fx.step = {}; + + + + +var + fxNow, inProgress, + rfxtypes = /^(?:toggle|show|hide)$/, + rrun = /queueHooks$/; + +function schedule() { + if ( inProgress ) { + if ( document.hidden === false && window.requestAnimationFrame ) { + window.requestAnimationFrame( schedule ); + } else { + window.setTimeout( schedule, jQuery.fx.interval ); + } + + jQuery.fx.tick(); + } +} + +// Animations created synchronously will run synchronously +function createFxNow() { + window.setTimeout( function() { + fxNow = undefined; + } ); + return ( fxNow = Date.now() ); +} + +// Generate parameters to create a standard animation +function genFx( type, includeWidth ) { + var which, + i = 0, + attrs = { height: type }; + + // If we include width, step value is 1 to do all cssExpand values, + // otherwise step value is 2 to skip over Left and Right + includeWidth = includeWidth ? 1 : 0; + for ( ; i < 4; i += 2 - includeWidth ) { + which = cssExpand[ i ]; + attrs[ "margin" + which ] = attrs[ "padding" + which ] = type; + } + + if ( includeWidth ) { + attrs.opacity = attrs.width = type; + } + + return attrs; +} + +function createTween( value, prop, animation ) { + var tween, + collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ), + index = 0, + length = collection.length; + for ( ; index < length; index++ ) { + if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) { + + // We're done with this property + return tween; + } + } +} + +function defaultPrefilter( elem, props, opts ) { + var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display, + isBox = "width" in props || "height" in props, + anim = this, + orig = {}, + style = elem.style, + hidden = elem.nodeType && isHiddenWithinTree( elem ), + dataShow = dataPriv.get( elem, "fxshow" ); + + // Queue-skipping animations hijack the fx hooks + if ( !opts.queue ) { + hooks = jQuery._queueHooks( elem, "fx" ); + if ( hooks.unqueued == null ) { + hooks.unqueued = 0; + oldfire = hooks.empty.fire; + hooks.empty.fire = function() { + if ( !hooks.unqueued ) { + oldfire(); + } + }; + } + hooks.unqueued++; + + anim.always( function() { + + // Ensure the complete handler is called before this completes + anim.always( function() { + hooks.unqueued--; + if ( !jQuery.queue( elem, "fx" ).length ) { + hooks.empty.fire(); + } + } ); + } ); + } + + // Detect show/hide animations + for ( prop in props ) { + value = props[ prop ]; + if ( rfxtypes.test( value ) ) { + delete props[ prop ]; + toggle = toggle || value === "toggle"; + if ( value === ( hidden ? "hide" : "show" ) ) { + + // Pretend to be hidden if this is a "show" and + // there is still data from a stopped show/hide + if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) { + hidden = true; + + // Ignore all other no-op show/hide data + } else { + continue; + } + } + orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop ); + } + } + + // Bail out if this is a no-op like .hide().hide() + propTween = !jQuery.isEmptyObject( props ); + if ( !propTween && jQuery.isEmptyObject( orig ) ) { + return; + } + + // Restrict "overflow" and "display" styles during box animations + if ( isBox && elem.nodeType === 1 ) { + + // Support: IE <=9 - 11, Edge 12 - 15 + // Record all 3 overflow attributes because IE does not infer the shorthand + // from identically-valued overflowX and overflowY and Edge just mirrors + // the overflowX value there. + opts.overflow = [ style.overflow, style.overflowX, style.overflowY ]; + + // Identify a display type, preferring old show/hide data over the CSS cascade + restoreDisplay = dataShow && dataShow.display; + if ( restoreDisplay == null ) { + restoreDisplay = dataPriv.get( elem, "display" ); + } + display = jQuery.css( elem, "display" ); + if ( display === "none" ) { + if ( restoreDisplay ) { + display = restoreDisplay; + } else { + + // Get nonempty value(s) by temporarily forcing visibility + showHide( [ elem ], true ); + restoreDisplay = elem.style.display || restoreDisplay; + display = jQuery.css( elem, "display" ); + showHide( [ elem ] ); + } + } + + // Animate inline elements as inline-block + if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) { + if ( jQuery.css( elem, "float" ) === "none" ) { + + // Restore the original display value at the end of pure show/hide animations + if ( !propTween ) { + anim.done( function() { + style.display = restoreDisplay; + } ); + if ( restoreDisplay == null ) { + display = style.display; + restoreDisplay = display === "none" ? "" : display; + } + } + style.display = "inline-block"; + } + } + } + + if ( opts.overflow ) { + style.overflow = "hidden"; + anim.always( function() { + style.overflow = opts.overflow[ 0 ]; + style.overflowX = opts.overflow[ 1 ]; + style.overflowY = opts.overflow[ 2 ]; + } ); + } + + // Implement show/hide animations + propTween = false; + for ( prop in orig ) { + + // General show/hide setup for this element animation + if ( !propTween ) { + if ( dataShow ) { + if ( "hidden" in dataShow ) { + hidden = dataShow.hidden; + } + } else { + dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } ); + } + + // Store hidden/visible for toggle so `.stop().toggle()` "reverses" + if ( toggle ) { + dataShow.hidden = !hidden; + } + + // Show elements before animating them + if ( hidden ) { + showHide( [ elem ], true ); + } + + /* eslint-disable no-loop-func */ + + anim.done( function() { + + /* eslint-enable no-loop-func */ + + // The final step of a "hide" animation is actually hiding the element + if ( !hidden ) { + showHide( [ elem ] ); + } + dataPriv.remove( elem, "fxshow" ); + for ( prop in orig ) { + jQuery.style( elem, prop, orig[ prop ] ); + } + } ); + } + + // Per-property setup + propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim ); + if ( !( prop in dataShow ) ) { + dataShow[ prop ] = propTween.start; + if ( hidden ) { + propTween.end = propTween.start; + propTween.start = 0; + } + } + } +} + +function propFilter( props, specialEasing ) { + var index, name, easing, value, hooks; + + // camelCase, specialEasing and expand cssHook pass + for ( index in props ) { + name = camelCase( index ); + easing = specialEasing[ name ]; + value = props[ index ]; + if ( Array.isArray( value ) ) { + easing = value[ 1 ]; + value = props[ index ] = value[ 0 ]; + } + + if ( index !== name ) { + props[ name ] = value; + delete props[ index ]; + } + + hooks = jQuery.cssHooks[ name ]; + if ( hooks && "expand" in hooks ) { + value = hooks.expand( value ); + delete props[ name ]; + + // Not quite $.extend, this won't overwrite existing keys. + // Reusing 'index' because we have the correct "name" + for ( index in value ) { + if ( !( index in props ) ) { + props[ index ] = value[ index ]; + specialEasing[ index ] = easing; + } + } + } else { + specialEasing[ name ] = easing; + } + } +} + +function Animation( elem, properties, options ) { + var result, + stopped, + index = 0, + length = Animation.prefilters.length, + deferred = jQuery.Deferred().always( function() { + + // Don't match elem in the :animated selector + delete tick.elem; + } ), + tick = function() { + if ( stopped ) { + return false; + } + var currentTime = fxNow || createFxNow(), + remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ), + + // Support: Android 2.3 only + // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497) + temp = remaining / animation.duration || 0, + percent = 1 - temp, + index = 0, + length = animation.tweens.length; + + for ( ; index < length; index++ ) { + animation.tweens[ index ].run( percent ); + } + + deferred.notifyWith( elem, [ animation, percent, remaining ] ); + + // If there's more to do, yield + if ( percent < 1 && length ) { + return remaining; + } + + // If this was an empty animation, synthesize a final progress notification + if ( !length ) { + deferred.notifyWith( elem, [ animation, 1, 0 ] ); + } + + // Resolve the animation and report its conclusion + deferred.resolveWith( elem, [ animation ] ); + return false; + }, + animation = deferred.promise( { + elem: elem, + props: jQuery.extend( {}, properties ), + opts: jQuery.extend( true, { + specialEasing: {}, + easing: jQuery.easing._default + }, options ), + originalProperties: properties, + originalOptions: options, + startTime: fxNow || createFxNow(), + duration: options.duration, + tweens: [], + createTween: function( prop, end ) { + var tween = jQuery.Tween( elem, animation.opts, prop, end, + animation.opts.specialEasing[ prop ] || animation.opts.easing ); + animation.tweens.push( tween ); + return tween; + }, + stop: function( gotoEnd ) { + var index = 0, + + // If we are going to the end, we want to run all the tweens + // otherwise we skip this part + length = gotoEnd ? animation.tweens.length : 0; + if ( stopped ) { + return this; + } + stopped = true; + for ( ; index < length; index++ ) { + animation.tweens[ index ].run( 1 ); + } + + // Resolve when we played the last frame; otherwise, reject + if ( gotoEnd ) { + deferred.notifyWith( elem, [ animation, 1, 0 ] ); + deferred.resolveWith( elem, [ animation, gotoEnd ] ); + } else { + deferred.rejectWith( elem, [ animation, gotoEnd ] ); + } + return this; + } + } ), + props = animation.props; + + propFilter( props, animation.opts.specialEasing ); + + for ( ; index < length; index++ ) { + result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts ); + if ( result ) { + if ( isFunction( result.stop ) ) { + jQuery._queueHooks( animation.elem, animation.opts.queue ).stop = + result.stop.bind( result ); + } + return result; + } + } + + jQuery.map( props, createTween, animation ); + + if ( isFunction( animation.opts.start ) ) { + animation.opts.start.call( elem, animation ); + } + + // Attach callbacks from options + animation + .progress( animation.opts.progress ) + .done( animation.opts.done, animation.opts.complete ) + .fail( animation.opts.fail ) + .always( animation.opts.always ); + + jQuery.fx.timer( + jQuery.extend( tick, { + elem: elem, + anim: animation, + queue: animation.opts.queue + } ) + ); + + return animation; +} + +jQuery.Animation = jQuery.extend( Animation, { + + tweeners: { + "*": [ function( prop, value ) { + var tween = this.createTween( prop, value ); + adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween ); + return tween; + } ] + }, + + tweener: function( props, callback ) { + if ( isFunction( props ) ) { + callback = props; + props = [ "*" ]; + } else { + props = props.match( rnothtmlwhite ); + } + + var prop, + index = 0, + length = props.length; + + for ( ; index < length; index++ ) { + prop = props[ index ]; + Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || []; + Animation.tweeners[ prop ].unshift( callback ); + } + }, + + prefilters: [ defaultPrefilter ], + + prefilter: function( callback, prepend ) { + if ( prepend ) { + Animation.prefilters.unshift( callback ); + } else { + Animation.prefilters.push( callback ); + } + } +} ); + +jQuery.speed = function( speed, easing, fn ) { + var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : { + complete: fn || !fn && easing || + isFunction( speed ) && speed, + duration: speed, + easing: fn && easing || easing && !isFunction( easing ) && easing + }; + + // Go to the end state if fx are off + if ( jQuery.fx.off ) { + opt.duration = 0; + + } else { + if ( typeof opt.duration !== "number" ) { + if ( opt.duration in jQuery.fx.speeds ) { + opt.duration = jQuery.fx.speeds[ opt.duration ]; + + } else { + opt.duration = jQuery.fx.speeds._default; + } + } + } + + // Normalize opt.queue - true/undefined/null -> "fx" + if ( opt.queue == null || opt.queue === true ) { + opt.queue = "fx"; + } + + // Queueing + opt.old = opt.complete; + + opt.complete = function() { + if ( isFunction( opt.old ) ) { + opt.old.call( this ); + } + + if ( opt.queue ) { + jQuery.dequeue( this, opt.queue ); + } + }; + + return opt; +}; + +jQuery.fn.extend( { + fadeTo: function( speed, to, easing, callback ) { + + // Show any hidden elements after setting opacity to 0 + return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show() + + // Animate to the value specified + .end().animate( { opacity: to }, speed, easing, callback ); + }, + animate: function( prop, speed, easing, callback ) { + var empty = jQuery.isEmptyObject( prop ), + optall = jQuery.speed( speed, easing, callback ), + doAnimation = function() { + + // Operate on a copy of prop so per-property easing won't be lost + var anim = Animation( this, jQuery.extend( {}, prop ), optall ); + + // Empty animations, or finishing resolves immediately + if ( empty || dataPriv.get( this, "finish" ) ) { + anim.stop( true ); + } + }; + + doAnimation.finish = doAnimation; + + return empty || optall.queue === false ? + this.each( doAnimation ) : + this.queue( optall.queue, doAnimation ); + }, + stop: function( type, clearQueue, gotoEnd ) { + var stopQueue = function( hooks ) { + var stop = hooks.stop; + delete hooks.stop; + stop( gotoEnd ); + }; + + if ( typeof type !== "string" ) { + gotoEnd = clearQueue; + clearQueue = type; + type = undefined; + } + if ( clearQueue ) { + this.queue( type || "fx", [] ); + } + + return this.each( function() { + var dequeue = true, + index = type != null && type + "queueHooks", + timers = jQuery.timers, + data = dataPriv.get( this ); + + if ( index ) { + if ( data[ index ] && data[ index ].stop ) { + stopQueue( data[ index ] ); + } + } else { + for ( index in data ) { + if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) { + stopQueue( data[ index ] ); + } + } + } + + for ( index = timers.length; index--; ) { + if ( timers[ index ].elem === this && + ( type == null || timers[ index ].queue === type ) ) { + + timers[ index ].anim.stop( gotoEnd ); + dequeue = false; + timers.splice( index, 1 ); + } + } + + // Start the next in the queue if the last step wasn't forced. + // Timers currently will call their complete callbacks, which + // will dequeue but only if they were gotoEnd. + if ( dequeue || !gotoEnd ) { + jQuery.dequeue( this, type ); + } + } ); + }, + finish: function( type ) { + if ( type !== false ) { + type = type || "fx"; + } + return this.each( function() { + var index, + data = dataPriv.get( this ), + queue = data[ type + "queue" ], + hooks = data[ type + "queueHooks" ], + timers = jQuery.timers, + length = queue ? queue.length : 0; + + // Enable finishing flag on private data + data.finish = true; + + // Empty the queue first + jQuery.queue( this, type, [] ); + + if ( hooks && hooks.stop ) { + hooks.stop.call( this, true ); + } + + // Look for any active animations, and finish them + for ( index = timers.length; index--; ) { + if ( timers[ index ].elem === this && timers[ index ].queue === type ) { + timers[ index ].anim.stop( true ); + timers.splice( index, 1 ); + } + } + + // Look for any animations in the old queue and finish them + for ( index = 0; index < length; index++ ) { + if ( queue[ index ] && queue[ index ].finish ) { + queue[ index ].finish.call( this ); + } + } + + // Turn off finishing flag + delete data.finish; + } ); + } +} ); + +jQuery.each( [ "toggle", "show", "hide" ], function( _i, name ) { + var cssFn = jQuery.fn[ name ]; + jQuery.fn[ name ] = function( speed, easing, callback ) { + return speed == null || typeof speed === "boolean" ? + cssFn.apply( this, arguments ) : + this.animate( genFx( name, true ), speed, easing, callback ); + }; +} ); + +// Generate shortcuts for custom animations +jQuery.each( { + slideDown: genFx( "show" ), + slideUp: genFx( "hide" ), + slideToggle: genFx( "toggle" ), + fadeIn: { opacity: "show" }, + fadeOut: { opacity: "hide" }, + fadeToggle: { opacity: "toggle" } +}, function( name, props ) { + jQuery.fn[ name ] = function( speed, easing, callback ) { + return this.animate( props, speed, easing, callback ); + }; +} ); + +jQuery.timers = []; +jQuery.fx.tick = function() { + var timer, + i = 0, + timers = jQuery.timers; + + fxNow = Date.now(); + + for ( ; i < timers.length; i++ ) { + timer = timers[ i ]; + + // Run the timer and safely remove it when done (allowing for external removal) + if ( !timer() && timers[ i ] === timer ) { + timers.splice( i--, 1 ); + } + } + + if ( !timers.length ) { + jQuery.fx.stop(); + } + fxNow = undefined; +}; + +jQuery.fx.timer = function( timer ) { + jQuery.timers.push( timer ); + jQuery.fx.start(); +}; + +jQuery.fx.interval = 13; +jQuery.fx.start = function() { + if ( inProgress ) { + return; + } + + inProgress = true; + schedule(); +}; + +jQuery.fx.stop = function() { + inProgress = null; +}; + +jQuery.fx.speeds = { + slow: 600, + fast: 200, + + // Default speed + _default: 400 +}; + + +// Based off of the plugin by Clint Helfers, with permission. +// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/ +jQuery.fn.delay = function( time, type ) { + time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time; + type = type || "fx"; + + return this.queue( type, function( next, hooks ) { + var timeout = window.setTimeout( next, time ); + hooks.stop = function() { + window.clearTimeout( timeout ); + }; + } ); +}; + + +( function() { + var input = document.createElement( "input" ), + select = document.createElement( "select" ), + opt = select.appendChild( document.createElement( "option" ) ); + + input.type = "checkbox"; + + // Support: Android <=4.3 only + // Default value for a checkbox should be "on" + support.checkOn = input.value !== ""; + + // Support: IE <=11 only + // Must access selectedIndex to make default options select + support.optSelected = opt.selected; + + // Support: IE <=11 only + // An input loses its value after becoming a radio + input = document.createElement( "input" ); + input.value = "t"; + input.type = "radio"; + support.radioValue = input.value === "t"; +} )(); + + +var boolHook, + attrHandle = jQuery.expr.attrHandle; + +jQuery.fn.extend( { + attr: function( name, value ) { + return access( this, jQuery.attr, name, value, arguments.length > 1 ); + }, + + removeAttr: function( name ) { + return this.each( function() { + jQuery.removeAttr( this, name ); + } ); + } +} ); + +jQuery.extend( { + attr: function( elem, name, value ) { + var ret, hooks, + nType = elem.nodeType; + + // Don't get/set attributes on text, comment and attribute nodes + if ( nType === 3 || nType === 8 || nType === 2 ) { + return; + } + + // Fallback to prop when attributes are not supported + if ( typeof elem.getAttribute === "undefined" ) { + return jQuery.prop( elem, name, value ); + } + + // Attribute hooks are determined by the lowercase version + // Grab necessary hook if one is defined + if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { + hooks = jQuery.attrHooks[ name.toLowerCase() ] || + ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined ); + } + + if ( value !== undefined ) { + if ( value === null ) { + jQuery.removeAttr( elem, name ); + return; + } + + if ( hooks && "set" in hooks && + ( ret = hooks.set( elem, value, name ) ) !== undefined ) { + return ret; + } + + elem.setAttribute( name, value + "" ); + return value; + } + + if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { + return ret; + } + + ret = jQuery.find.attr( elem, name ); + + // Non-existent attributes return null, we normalize to undefined + return ret == null ? undefined : ret; + }, + + attrHooks: { + type: { + set: function( elem, value ) { + if ( !support.radioValue && value === "radio" && + nodeName( elem, "input" ) ) { + var val = elem.value; + elem.setAttribute( "type", value ); + if ( val ) { + elem.value = val; + } + return value; + } + } + } + }, + + removeAttr: function( elem, value ) { + var name, + i = 0, + + // Attribute names can contain non-HTML whitespace characters + // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2 + attrNames = value && value.match( rnothtmlwhite ); + + if ( attrNames && elem.nodeType === 1 ) { + while ( ( name = attrNames[ i++ ] ) ) { + elem.removeAttribute( name ); + } + } + } +} ); + +// Hooks for boolean attributes +boolHook = { + set: function( elem, value, name ) { + if ( value === false ) { + + // Remove boolean attributes when set to false + jQuery.removeAttr( elem, name ); + } else { + elem.setAttribute( name, name ); + } + return name; + } +}; + +jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( _i, name ) { + var getter = attrHandle[ name ] || jQuery.find.attr; + + attrHandle[ name ] = function( elem, name, isXML ) { + var ret, handle, + lowercaseName = name.toLowerCase(); + + if ( !isXML ) { + + // Avoid an infinite loop by temporarily removing this function from the getter + handle = attrHandle[ lowercaseName ]; + attrHandle[ lowercaseName ] = ret; + ret = getter( elem, name, isXML ) != null ? + lowercaseName : + null; + attrHandle[ lowercaseName ] = handle; + } + return ret; + }; +} ); + + + + +var rfocusable = /^(?:input|select|textarea|button)$/i, + rclickable = /^(?:a|area)$/i; + +jQuery.fn.extend( { + prop: function( name, value ) { + return access( this, jQuery.prop, name, value, arguments.length > 1 ); + }, + + removeProp: function( name ) { + return this.each( function() { + delete this[ jQuery.propFix[ name ] || name ]; + } ); + } +} ); + +jQuery.extend( { + prop: function( elem, name, value ) { + var ret, hooks, + nType = elem.nodeType; + + // Don't get/set properties on text, comment and attribute nodes + if ( nType === 3 || nType === 8 || nType === 2 ) { + return; + } + + if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { + + // Fix name and attach hooks + name = jQuery.propFix[ name ] || name; + hooks = jQuery.propHooks[ name ]; + } + + if ( value !== undefined ) { + if ( hooks && "set" in hooks && + ( ret = hooks.set( elem, value, name ) ) !== undefined ) { + return ret; + } + + return ( elem[ name ] = value ); + } + + if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { + return ret; + } + + return elem[ name ]; + }, + + propHooks: { + tabIndex: { + get: function( elem ) { + + // Support: IE <=9 - 11 only + // elem.tabIndex doesn't always return the + // correct value when it hasn't been explicitly set + // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/ + // Use proper attribute retrieval(#12072) + var tabindex = jQuery.find.attr( elem, "tabindex" ); + + if ( tabindex ) { + return parseInt( tabindex, 10 ); + } + + if ( + rfocusable.test( elem.nodeName ) || + rclickable.test( elem.nodeName ) && + elem.href + ) { + return 0; + } + + return -1; + } + } + }, + + propFix: { + "for": "htmlFor", + "class": "className" + } +} ); + +// Support: IE <=11 only +// Accessing the selectedIndex property +// forces the browser to respect setting selected +// on the option +// The getter ensures a default option is selected +// when in an optgroup +// eslint rule "no-unused-expressions" is disabled for this code +// since it considers such accessions noop +if ( !support.optSelected ) { + jQuery.propHooks.selected = { + get: function( elem ) { + + /* eslint no-unused-expressions: "off" */ + + var parent = elem.parentNode; + if ( parent && parent.parentNode ) { + parent.parentNode.selectedIndex; + } + return null; + }, + set: function( elem ) { + + /* eslint no-unused-expressions: "off" */ + + var parent = elem.parentNode; + if ( parent ) { + parent.selectedIndex; + + if ( parent.parentNode ) { + parent.parentNode.selectedIndex; + } + } + } + }; +} + +jQuery.each( [ + "tabIndex", + "readOnly", + "maxLength", + "cellSpacing", + "cellPadding", + "rowSpan", + "colSpan", + "useMap", + "frameBorder", + "contentEditable" +], function() { + jQuery.propFix[ this.toLowerCase() ] = this; +} ); + + + + + // Strip and collapse whitespace according to HTML spec + // https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace + function stripAndCollapse( value ) { + var tokens = value.match( rnothtmlwhite ) || []; + return tokens.join( " " ); + } + + +function getClass( elem ) { + return elem.getAttribute && elem.getAttribute( "class" ) || ""; +} + +function classesToArray( value ) { + if ( Array.isArray( value ) ) { + return value; + } + if ( typeof value === "string" ) { + return value.match( rnothtmlwhite ) || []; + } + return []; +} + +jQuery.fn.extend( { + addClass: function( value ) { + var classes, elem, cur, curValue, clazz, j, finalValue, + i = 0; + + if ( isFunction( value ) ) { + return this.each( function( j ) { + jQuery( this ).addClass( value.call( this, j, getClass( this ) ) ); + } ); + } + + classes = classesToArray( value ); + + if ( classes.length ) { + while ( ( elem = this[ i++ ] ) ) { + curValue = getClass( elem ); + cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); + + if ( cur ) { + j = 0; + while ( ( clazz = classes[ j++ ] ) ) { + if ( cur.indexOf( " " + clazz + " " ) < 0 ) { + cur += clazz + " "; + } + } + + // Only assign if different to avoid unneeded rendering. + finalValue = stripAndCollapse( cur ); + if ( curValue !== finalValue ) { + elem.setAttribute( "class", finalValue ); + } + } + } + } + + return this; + }, + + removeClass: function( value ) { + var classes, elem, cur, curValue, clazz, j, finalValue, + i = 0; + + if ( isFunction( value ) ) { + return this.each( function( j ) { + jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) ); + } ); + } + + if ( !arguments.length ) { + return this.attr( "class", "" ); + } + + classes = classesToArray( value ); + + if ( classes.length ) { + while ( ( elem = this[ i++ ] ) ) { + curValue = getClass( elem ); + + // This expression is here for better compressibility (see addClass) + cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); + + if ( cur ) { + j = 0; + while ( ( clazz = classes[ j++ ] ) ) { + + // Remove *all* instances + while ( cur.indexOf( " " + clazz + " " ) > -1 ) { + cur = cur.replace( " " + clazz + " ", " " ); + } + } + + // Only assign if different to avoid unneeded rendering. + finalValue = stripAndCollapse( cur ); + if ( curValue !== finalValue ) { + elem.setAttribute( "class", finalValue ); + } + } + } + } + + return this; + }, + + toggleClass: function( value, stateVal ) { + var type = typeof value, + isValidValue = type === "string" || Array.isArray( value ); + + if ( typeof stateVal === "boolean" && isValidValue ) { + return stateVal ? this.addClass( value ) : this.removeClass( value ); + } + + if ( isFunction( value ) ) { + return this.each( function( i ) { + jQuery( this ).toggleClass( + value.call( this, i, getClass( this ), stateVal ), + stateVal + ); + } ); + } + + return this.each( function() { + var className, i, self, classNames; + + if ( isValidValue ) { + + // Toggle individual class names + i = 0; + self = jQuery( this ); + classNames = classesToArray( value ); + + while ( ( className = classNames[ i++ ] ) ) { + + // Check each className given, space separated list + if ( self.hasClass( className ) ) { + self.removeClass( className ); + } else { + self.addClass( className ); + } + } + + // Toggle whole class name + } else if ( value === undefined || type === "boolean" ) { + className = getClass( this ); + if ( className ) { + + // Store className if set + dataPriv.set( this, "__className__", className ); + } + + // If the element has a class name or if we're passed `false`, + // then remove the whole classname (if there was one, the above saved it). + // Otherwise bring back whatever was previously saved (if anything), + // falling back to the empty string if nothing was stored. + if ( this.setAttribute ) { + this.setAttribute( "class", + className || value === false ? + "" : + dataPriv.get( this, "__className__" ) || "" + ); + } + } + } ); + }, + + hasClass: function( selector ) { + var className, elem, + i = 0; + + className = " " + selector + " "; + while ( ( elem = this[ i++ ] ) ) { + if ( elem.nodeType === 1 && + ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) { + return true; + } + } + + return false; + } +} ); + + + + +var rreturn = /\r/g; + +jQuery.fn.extend( { + val: function( value ) { + var hooks, ret, valueIsFunction, + elem = this[ 0 ]; + + if ( !arguments.length ) { + if ( elem ) { + hooks = jQuery.valHooks[ elem.type ] || + jQuery.valHooks[ elem.nodeName.toLowerCase() ]; + + if ( hooks && + "get" in hooks && + ( ret = hooks.get( elem, "value" ) ) !== undefined + ) { + return ret; + } + + ret = elem.value; + + // Handle most common string cases + if ( typeof ret === "string" ) { + return ret.replace( rreturn, "" ); + } + + // Handle cases where value is null/undef or number + return ret == null ? "" : ret; + } + + return; + } + + valueIsFunction = isFunction( value ); + + return this.each( function( i ) { + var val; + + if ( this.nodeType !== 1 ) { + return; + } + + if ( valueIsFunction ) { + val = value.call( this, i, jQuery( this ).val() ); + } else { + val = value; + } + + // Treat null/undefined as ""; convert numbers to string + if ( val == null ) { + val = ""; + + } else if ( typeof val === "number" ) { + val += ""; + + } else if ( Array.isArray( val ) ) { + val = jQuery.map( val, function( value ) { + return value == null ? "" : value + ""; + } ); + } + + hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ]; + + // If set returns undefined, fall back to normal setting + if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) { + this.value = val; + } + } ); + } +} ); + +jQuery.extend( { + valHooks: { + option: { + get: function( elem ) { + + var val = jQuery.find.attr( elem, "value" ); + return val != null ? + val : + + // Support: IE <=10 - 11 only + // option.text throws exceptions (#14686, #14858) + // Strip and collapse whitespace + // https://html.spec.whatwg.org/#strip-and-collapse-whitespace + stripAndCollapse( jQuery.text( elem ) ); + } + }, + select: { + get: function( elem ) { + var value, option, i, + options = elem.options, + index = elem.selectedIndex, + one = elem.type === "select-one", + values = one ? null : [], + max = one ? index + 1 : options.length; + + if ( index < 0 ) { + i = max; + + } else { + i = one ? index : 0; + } + + // Loop through all the selected options + for ( ; i < max; i++ ) { + option = options[ i ]; + + // Support: IE <=9 only + // IE8-9 doesn't update selected after form reset (#2551) + if ( ( option.selected || i === index ) && + + // Don't return options that are disabled or in a disabled optgroup + !option.disabled && + ( !option.parentNode.disabled || + !nodeName( option.parentNode, "optgroup" ) ) ) { + + // Get the specific value for the option + value = jQuery( option ).val(); + + // We don't need an array for one selects + if ( one ) { + return value; + } + + // Multi-Selects return an array + values.push( value ); + } + } + + return values; + }, + + set: function( elem, value ) { + var optionSet, option, + options = elem.options, + values = jQuery.makeArray( value ), + i = options.length; + + while ( i-- ) { + option = options[ i ]; + + /* eslint-disable no-cond-assign */ + + if ( option.selected = + jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1 + ) { + optionSet = true; + } + + /* eslint-enable no-cond-assign */ + } + + // Force browsers to behave consistently when non-matching value is set + if ( !optionSet ) { + elem.selectedIndex = -1; + } + return values; + } + } + } +} ); + +// Radios and checkboxes getter/setter +jQuery.each( [ "radio", "checkbox" ], function() { + jQuery.valHooks[ this ] = { + set: function( elem, value ) { + if ( Array.isArray( value ) ) { + return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 ); + } + } + }; + if ( !support.checkOn ) { + jQuery.valHooks[ this ].get = function( elem ) { + return elem.getAttribute( "value" ) === null ? "on" : elem.value; + }; + } +} ); + + + + +// Return jQuery for attributes-only inclusion + + +support.focusin = "onfocusin" in window; + + +var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/, + stopPropagationCallback = function( e ) { + e.stopPropagation(); + }; + +jQuery.extend( jQuery.event, { + + trigger: function( event, data, elem, onlyHandlers ) { + + var i, cur, tmp, bubbleType, ontype, handle, special, lastElement, + eventPath = [ elem || document ], + type = hasOwn.call( event, "type" ) ? event.type : event, + namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : []; + + cur = lastElement = tmp = elem = elem || document; + + // Don't do events on text and comment nodes + if ( elem.nodeType === 3 || elem.nodeType === 8 ) { + return; + } + + // focus/blur morphs to focusin/out; ensure we're not firing them right now + if ( rfocusMorph.test( type + jQuery.event.triggered ) ) { + return; + } + + if ( type.indexOf( "." ) > -1 ) { + + // Namespaced trigger; create a regexp to match event type in handle() + namespaces = type.split( "." ); + type = namespaces.shift(); + namespaces.sort(); + } + ontype = type.indexOf( ":" ) < 0 && "on" + type; + + // Caller can pass in a jQuery.Event object, Object, or just an event type string + event = event[ jQuery.expando ] ? + event : + new jQuery.Event( type, typeof event === "object" && event ); + + // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true) + event.isTrigger = onlyHandlers ? 2 : 3; + event.namespace = namespaces.join( "." ); + event.rnamespace = event.namespace ? + new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) : + null; + + // Clean up the event in case it is being reused + event.result = undefined; + if ( !event.target ) { + event.target = elem; + } + + // Clone any incoming data and prepend the event, creating the handler arg list + data = data == null ? + [ event ] : + jQuery.makeArray( data, [ event ] ); + + // Allow special events to draw outside the lines + special = jQuery.event.special[ type ] || {}; + if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) { + return; + } + + // Determine event propagation path in advance, per W3C events spec (#9951) + // Bubble up to document, then to window; watch for a global ownerDocument var (#9724) + if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) { + + bubbleType = special.delegateType || type; + if ( !rfocusMorph.test( bubbleType + type ) ) { + cur = cur.parentNode; + } + for ( ; cur; cur = cur.parentNode ) { + eventPath.push( cur ); + tmp = cur; + } + + // Only add window if we got to document (e.g., not plain obj or detached DOM) + if ( tmp === ( elem.ownerDocument || document ) ) { + eventPath.push( tmp.defaultView || tmp.parentWindow || window ); + } + } + + // Fire handlers on the event path + i = 0; + while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) { + lastElement = cur; + event.type = i > 1 ? + bubbleType : + special.bindType || type; + + // jQuery handler + handle = ( dataPriv.get( cur, "events" ) || Object.create( null ) )[ event.type ] && + dataPriv.get( cur, "handle" ); + if ( handle ) { + handle.apply( cur, data ); + } + + // Native handler + handle = ontype && cur[ ontype ]; + if ( handle && handle.apply && acceptData( cur ) ) { + event.result = handle.apply( cur, data ); + if ( event.result === false ) { + event.preventDefault(); + } + } + } + event.type = type; + + // If nobody prevented the default action, do it now + if ( !onlyHandlers && !event.isDefaultPrevented() ) { + + if ( ( !special._default || + special._default.apply( eventPath.pop(), data ) === false ) && + acceptData( elem ) ) { + + // Call a native DOM method on the target with the same name as the event. + // Don't do default actions on window, that's where global variables be (#6170) + if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) { + + // Don't re-trigger an onFOO event when we call its FOO() method + tmp = elem[ ontype ]; + + if ( tmp ) { + elem[ ontype ] = null; + } + + // Prevent re-triggering of the same event, since we already bubbled it above + jQuery.event.triggered = type; + + if ( event.isPropagationStopped() ) { + lastElement.addEventListener( type, stopPropagationCallback ); + } + + elem[ type ](); + + if ( event.isPropagationStopped() ) { + lastElement.removeEventListener( type, stopPropagationCallback ); + } + + jQuery.event.triggered = undefined; + + if ( tmp ) { + elem[ ontype ] = tmp; + } + } + } + } + + return event.result; + }, + + // Piggyback on a donor event to simulate a different one + // Used only for `focus(in | out)` events + simulate: function( type, elem, event ) { + var e = jQuery.extend( + new jQuery.Event(), + event, + { + type: type, + isSimulated: true + } + ); + + jQuery.event.trigger( e, null, elem ); + } + +} ); + +jQuery.fn.extend( { + + trigger: function( type, data ) { + return this.each( function() { + jQuery.event.trigger( type, data, this ); + } ); + }, + triggerHandler: function( type, data ) { + var elem = this[ 0 ]; + if ( elem ) { + return jQuery.event.trigger( type, data, elem, true ); + } + } +} ); + + +// Support: Firefox <=44 +// Firefox doesn't have focus(in | out) events +// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787 +// +// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1 +// focus(in | out) events fire after focus & blur events, +// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order +// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857 +if ( !support.focusin ) { + jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) { + + // Attach a single capturing handler on the document while someone wants focusin/focusout + var handler = function( event ) { + jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) ); + }; + + jQuery.event.special[ fix ] = { + setup: function() { + + // Handle: regular nodes (via `this.ownerDocument`), window + // (via `this.document`) & document (via `this`). + var doc = this.ownerDocument || this.document || this, + attaches = dataPriv.access( doc, fix ); + + if ( !attaches ) { + doc.addEventListener( orig, handler, true ); + } + dataPriv.access( doc, fix, ( attaches || 0 ) + 1 ); + }, + teardown: function() { + var doc = this.ownerDocument || this.document || this, + attaches = dataPriv.access( doc, fix ) - 1; + + if ( !attaches ) { + doc.removeEventListener( orig, handler, true ); + dataPriv.remove( doc, fix ); + + } else { + dataPriv.access( doc, fix, attaches ); + } + } + }; + } ); +} +var location = window.location; + +var nonce = { guid: Date.now() }; + +var rquery = ( /\?/ ); + + + +// Cross-browser xml parsing +jQuery.parseXML = function( data ) { + var xml, parserErrorElem; + if ( !data || typeof data !== "string" ) { + return null; + } + + // Support: IE 9 - 11 only + // IE throws on parseFromString with invalid input. + try { + xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" ); + } catch ( e ) {} + + parserErrorElem = xml && xml.getElementsByTagName( "parsererror" )[ 0 ]; + if ( !xml || parserErrorElem ) { + jQuery.error( "Invalid XML: " + ( + parserErrorElem ? + jQuery.map( parserErrorElem.childNodes, function( el ) { + return el.textContent; + } ).join( "\n" ) : + data + ) ); + } + return xml; +}; + + +var + rbracket = /\[\]$/, + rCRLF = /\r?\n/g, + rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i, + rsubmittable = /^(?:input|select|textarea|keygen)/i; + +function buildParams( prefix, obj, traditional, add ) { + var name; + + if ( Array.isArray( obj ) ) { + + // Serialize array item. + jQuery.each( obj, function( i, v ) { + if ( traditional || rbracket.test( prefix ) ) { + + // Treat each array item as a scalar. + add( prefix, v ); + + } else { + + // Item is non-scalar (array or object), encode its numeric index. + buildParams( + prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]", + v, + traditional, + add + ); + } + } ); + + } else if ( !traditional && toType( obj ) === "object" ) { + + // Serialize object item. + for ( name in obj ) { + buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add ); + } + + } else { + + // Serialize scalar item. + add( prefix, obj ); + } +} + +// Serialize an array of form elements or a set of +// key/values into a query string +jQuery.param = function( a, traditional ) { + var prefix, + s = [], + add = function( key, valueOrFunction ) { + + // If value is a function, invoke it and use its return value + var value = isFunction( valueOrFunction ) ? + valueOrFunction() : + valueOrFunction; + + s[ s.length ] = encodeURIComponent( key ) + "=" + + encodeURIComponent( value == null ? "" : value ); + }; + + if ( a == null ) { + return ""; + } + + // If an array was passed in, assume that it is an array of form elements. + if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) { + + // Serialize the form elements + jQuery.each( a, function() { + add( this.name, this.value ); + } ); + + } else { + + // If traditional, encode the "old" way (the way 1.3.2 or older + // did it), otherwise encode params recursively. + for ( prefix in a ) { + buildParams( prefix, a[ prefix ], traditional, add ); + } + } + + // Return the resulting serialization + return s.join( "&" ); +}; + +jQuery.fn.extend( { + serialize: function() { + return jQuery.param( this.serializeArray() ); + }, + serializeArray: function() { + return this.map( function() { + + // Can add propHook for "elements" to filter or add form elements + var elements = jQuery.prop( this, "elements" ); + return elements ? jQuery.makeArray( elements ) : this; + } ).filter( function() { + var type = this.type; + + // Use .is( ":disabled" ) so that fieldset[disabled] works + return this.name && !jQuery( this ).is( ":disabled" ) && + rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) && + ( this.checked || !rcheckableType.test( type ) ); + } ).map( function( _i, elem ) { + var val = jQuery( this ).val(); + + if ( val == null ) { + return null; + } + + if ( Array.isArray( val ) ) { + return jQuery.map( val, function( val ) { + return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; + } ); + } + + return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; + } ).get(); + } +} ); + + +var + r20 = /%20/g, + rhash = /#.*$/, + rantiCache = /([?&])_=[^&]*/, + rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg, + + // #7653, #8125, #8152: local protocol detection + rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/, + rnoContent = /^(?:GET|HEAD)$/, + rprotocol = /^\/\//, + + /* Prefilters + * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example) + * 2) These are called: + * - BEFORE asking for a transport + * - AFTER param serialization (s.data is a string if s.processData is true) + * 3) key is the dataType + * 4) the catchall symbol "*" can be used + * 5) execution will start with transport dataType and THEN continue down to "*" if needed + */ + prefilters = {}, + + /* Transports bindings + * 1) key is the dataType + * 2) the catchall symbol "*" can be used + * 3) selection will start with transport dataType and THEN go to "*" if needed + */ + transports = {}, + + // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression + allTypes = "*/".concat( "*" ), + + // Anchor tag for parsing the document origin + originAnchor = document.createElement( "a" ); + +originAnchor.href = location.href; + +// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport +function addToPrefiltersOrTransports( structure ) { + + // dataTypeExpression is optional and defaults to "*" + return function( dataTypeExpression, func ) { + + if ( typeof dataTypeExpression !== "string" ) { + func = dataTypeExpression; + dataTypeExpression = "*"; + } + + var dataType, + i = 0, + dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || []; + + if ( isFunction( func ) ) { + + // For each dataType in the dataTypeExpression + while ( ( dataType = dataTypes[ i++ ] ) ) { + + // Prepend if requested + if ( dataType[ 0 ] === "+" ) { + dataType = dataType.slice( 1 ) || "*"; + ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func ); + + // Otherwise append + } else { + ( structure[ dataType ] = structure[ dataType ] || [] ).push( func ); + } + } + } + }; +} + +// Base inspection function for prefilters and transports +function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) { + + var inspected = {}, + seekingTransport = ( structure === transports ); + + function inspect( dataType ) { + var selected; + inspected[ dataType ] = true; + jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) { + var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR ); + if ( typeof dataTypeOrTransport === "string" && + !seekingTransport && !inspected[ dataTypeOrTransport ] ) { + + options.dataTypes.unshift( dataTypeOrTransport ); + inspect( dataTypeOrTransport ); + return false; + } else if ( seekingTransport ) { + return !( selected = dataTypeOrTransport ); + } + } ); + return selected; + } + + return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" ); +} + +// A special extend for ajax options +// that takes "flat" options (not to be deep extended) +// Fixes #9887 +function ajaxExtend( target, src ) { + var key, deep, + flatOptions = jQuery.ajaxSettings.flatOptions || {}; + + for ( key in src ) { + if ( src[ key ] !== undefined ) { + ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ]; + } + } + if ( deep ) { + jQuery.extend( true, target, deep ); + } + + return target; +} + +/* Handles responses to an ajax request: + * - finds the right dataType (mediates between content-type and expected dataType) + * - returns the corresponding response + */ +function ajaxHandleResponses( s, jqXHR, responses ) { + + var ct, type, finalDataType, firstDataType, + contents = s.contents, + dataTypes = s.dataTypes; + + // Remove auto dataType and get content-type in the process + while ( dataTypes[ 0 ] === "*" ) { + dataTypes.shift(); + if ( ct === undefined ) { + ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" ); + } + } + + // Check if we're dealing with a known content-type + if ( ct ) { + for ( type in contents ) { + if ( contents[ type ] && contents[ type ].test( ct ) ) { + dataTypes.unshift( type ); + break; + } + } + } + + // Check to see if we have a response for the expected dataType + if ( dataTypes[ 0 ] in responses ) { + finalDataType = dataTypes[ 0 ]; + } else { + + // Try convertible dataTypes + for ( type in responses ) { + if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) { + finalDataType = type; + break; + } + if ( !firstDataType ) { + firstDataType = type; + } + } + + // Or just use first one + finalDataType = finalDataType || firstDataType; + } + + // If we found a dataType + // We add the dataType to the list if needed + // and return the corresponding response + if ( finalDataType ) { + if ( finalDataType !== dataTypes[ 0 ] ) { + dataTypes.unshift( finalDataType ); + } + return responses[ finalDataType ]; + } +} + +/* Chain conversions given the request and the original response + * Also sets the responseXXX fields on the jqXHR instance + */ +function ajaxConvert( s, response, jqXHR, isSuccess ) { + var conv2, current, conv, tmp, prev, + converters = {}, + + // Work with a copy of dataTypes in case we need to modify it for conversion + dataTypes = s.dataTypes.slice(); + + // Create converters map with lowercased keys + if ( dataTypes[ 1 ] ) { + for ( conv in s.converters ) { + converters[ conv.toLowerCase() ] = s.converters[ conv ]; + } + } + + current = dataTypes.shift(); + + // Convert to each sequential dataType + while ( current ) { + + if ( s.responseFields[ current ] ) { + jqXHR[ s.responseFields[ current ] ] = response; + } + + // Apply the dataFilter if provided + if ( !prev && isSuccess && s.dataFilter ) { + response = s.dataFilter( response, s.dataType ); + } + + prev = current; + current = dataTypes.shift(); + + if ( current ) { + + // There's only work to do if current dataType is non-auto + if ( current === "*" ) { + + current = prev; + + // Convert response if prev dataType is non-auto and differs from current + } else if ( prev !== "*" && prev !== current ) { + + // Seek a direct converter + conv = converters[ prev + " " + current ] || converters[ "* " + current ]; + + // If none found, seek a pair + if ( !conv ) { + for ( conv2 in converters ) { + + // If conv2 outputs current + tmp = conv2.split( " " ); + if ( tmp[ 1 ] === current ) { + + // If prev can be converted to accepted input + conv = converters[ prev + " " + tmp[ 0 ] ] || + converters[ "* " + tmp[ 0 ] ]; + if ( conv ) { + + // Condense equivalence converters + if ( conv === true ) { + conv = converters[ conv2 ]; + + // Otherwise, insert the intermediate dataType + } else if ( converters[ conv2 ] !== true ) { + current = tmp[ 0 ]; + dataTypes.unshift( tmp[ 1 ] ); + } + break; + } + } + } + } + + // Apply converter (if not an equivalence) + if ( conv !== true ) { + + // Unless errors are allowed to bubble, catch and return them + if ( conv && s.throws ) { + response = conv( response ); + } else { + try { + response = conv( response ); + } catch ( e ) { + return { + state: "parsererror", + error: conv ? e : "No conversion from " + prev + " to " + current + }; + } + } + } + } + } + } + + return { state: "success", data: response }; +} + +jQuery.extend( { + + // Counter for holding the number of active queries + active: 0, + + // Last-Modified header cache for next request + lastModified: {}, + etag: {}, + + ajaxSettings: { + url: location.href, + type: "GET", + isLocal: rlocalProtocol.test( location.protocol ), + global: true, + processData: true, + async: true, + contentType: "application/x-www-form-urlencoded; charset=UTF-8", + + /* + timeout: 0, + data: null, + dataType: null, + username: null, + password: null, + cache: null, + throws: false, + traditional: false, + headers: {}, + */ + + accepts: { + "*": allTypes, + text: "text/plain", + html: "text/html", + xml: "application/xml, text/xml", + json: "application/json, text/javascript" + }, + + contents: { + xml: /\bxml\b/, + html: /\bhtml/, + json: /\bjson\b/ + }, + + responseFields: { + xml: "responseXML", + text: "responseText", + json: "responseJSON" + }, + + // Data converters + // Keys separate source (or catchall "*") and destination types with a single space + converters: { + + // Convert anything to text + "* text": String, + + // Text to html (true = no transformation) + "text html": true, + + // Evaluate text as a json expression + "text json": JSON.parse, + + // Parse text as xml + "text xml": jQuery.parseXML + }, + + // For options that shouldn't be deep extended: + // you can add your own custom options here if + // and when you create one that shouldn't be + // deep extended (see ajaxExtend) + flatOptions: { + url: true, + context: true + } + }, + + // Creates a full fledged settings object into target + // with both ajaxSettings and settings fields. + // If target is omitted, writes into ajaxSettings. + ajaxSetup: function( target, settings ) { + return settings ? + + // Building a settings object + ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) : + + // Extending ajaxSettings + ajaxExtend( jQuery.ajaxSettings, target ); + }, + + ajaxPrefilter: addToPrefiltersOrTransports( prefilters ), + ajaxTransport: addToPrefiltersOrTransports( transports ), + + // Main method + ajax: function( url, options ) { + + // If url is an object, simulate pre-1.5 signature + if ( typeof url === "object" ) { + options = url; + url = undefined; + } + + // Force options to be an object + options = options || {}; + + var transport, + + // URL without anti-cache param + cacheURL, + + // Response headers + responseHeadersString, + responseHeaders, + + // timeout handle + timeoutTimer, + + // Url cleanup var + urlAnchor, + + // Request state (becomes false upon send and true upon completion) + completed, + + // To know if global events are to be dispatched + fireGlobals, + + // Loop variable + i, + + // uncached part of the url + uncached, + + // Create the final options object + s = jQuery.ajaxSetup( {}, options ), + + // Callbacks context + callbackContext = s.context || s, + + // Context for global events is callbackContext if it is a DOM node or jQuery collection + globalEventContext = s.context && + ( callbackContext.nodeType || callbackContext.jquery ) ? + jQuery( callbackContext ) : + jQuery.event, + + // Deferreds + deferred = jQuery.Deferred(), + completeDeferred = jQuery.Callbacks( "once memory" ), + + // Status-dependent callbacks + statusCode = s.statusCode || {}, + + // Headers (they are sent all at once) + requestHeaders = {}, + requestHeadersNames = {}, + + // Default abort message + strAbort = "canceled", + + // Fake xhr + jqXHR = { + readyState: 0, + + // Builds headers hashtable if needed + getResponseHeader: function( key ) { + var match; + if ( completed ) { + if ( !responseHeaders ) { + responseHeaders = {}; + while ( ( match = rheaders.exec( responseHeadersString ) ) ) { + responseHeaders[ match[ 1 ].toLowerCase() + " " ] = + ( responseHeaders[ match[ 1 ].toLowerCase() + " " ] || [] ) + .concat( match[ 2 ] ); + } + } + match = responseHeaders[ key.toLowerCase() + " " ]; + } + return match == null ? null : match.join( ", " ); + }, + + // Raw string + getAllResponseHeaders: function() { + return completed ? responseHeadersString : null; + }, + + // Caches the header + setRequestHeader: function( name, value ) { + if ( completed == null ) { + name = requestHeadersNames[ name.toLowerCase() ] = + requestHeadersNames[ name.toLowerCase() ] || name; + requestHeaders[ name ] = value; + } + return this; + }, + + // Overrides response content-type header + overrideMimeType: function( type ) { + if ( completed == null ) { + s.mimeType = type; + } + return this; + }, + + // Status-dependent callbacks + statusCode: function( map ) { + var code; + if ( map ) { + if ( completed ) { + + // Execute the appropriate callbacks + jqXHR.always( map[ jqXHR.status ] ); + } else { + + // Lazy-add the new callbacks in a way that preserves old ones + for ( code in map ) { + statusCode[ code ] = [ statusCode[ code ], map[ code ] ]; + } + } + } + return this; + }, + + // Cancel the request + abort: function( statusText ) { + var finalText = statusText || strAbort; + if ( transport ) { + transport.abort( finalText ); + } + done( 0, finalText ); + return this; + } + }; + + // Attach deferreds + deferred.promise( jqXHR ); + + // Add protocol if not provided (prefilters might expect it) + // Handle falsy url in the settings object (#10093: consistency with old signature) + // We also use the url parameter if available + s.url = ( ( url || s.url || location.href ) + "" ) + .replace( rprotocol, location.protocol + "//" ); + + // Alias method option to type as per ticket #12004 + s.type = options.method || options.type || s.method || s.type; + + // Extract dataTypes list + s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ]; + + // A cross-domain request is in order when the origin doesn't match the current origin. + if ( s.crossDomain == null ) { + urlAnchor = document.createElement( "a" ); + + // Support: IE <=8 - 11, Edge 12 - 15 + // IE throws exception on accessing the href property if url is malformed, + // e.g. http://example.com:80x/ + try { + urlAnchor.href = s.url; + + // Support: IE <=8 - 11 only + // Anchor's host property isn't correctly set when s.url is relative + urlAnchor.href = urlAnchor.href; + s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !== + urlAnchor.protocol + "//" + urlAnchor.host; + } catch ( e ) { + + // If there is an error parsing the URL, assume it is crossDomain, + // it can be rejected by the transport if it is invalid + s.crossDomain = true; + } + } + + // Convert data if not already a string + if ( s.data && s.processData && typeof s.data !== "string" ) { + s.data = jQuery.param( s.data, s.traditional ); + } + + // Apply prefilters + inspectPrefiltersOrTransports( prefilters, s, options, jqXHR ); + + // If request was aborted inside a prefilter, stop there + if ( completed ) { + return jqXHR; + } + + // We can fire global events as of now if asked to + // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118) + fireGlobals = jQuery.event && s.global; + + // Watch for a new set of requests + if ( fireGlobals && jQuery.active++ === 0 ) { + jQuery.event.trigger( "ajaxStart" ); + } + + // Uppercase the type + s.type = s.type.toUpperCase(); + + // Determine if request has content + s.hasContent = !rnoContent.test( s.type ); + + // Save the URL in case we're toying with the If-Modified-Since + // and/or If-None-Match header later on + // Remove hash to simplify url manipulation + cacheURL = s.url.replace( rhash, "" ); + + // More options handling for requests with no content + if ( !s.hasContent ) { + + // Remember the hash so we can put it back + uncached = s.url.slice( cacheURL.length ); + + // If data is available and should be processed, append data to url + if ( s.data && ( s.processData || typeof s.data === "string" ) ) { + cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data; + + // #9682: remove data so that it's not used in an eventual retry + delete s.data; + } + + // Add or update anti-cache param if needed + if ( s.cache === false ) { + cacheURL = cacheURL.replace( rantiCache, "$1" ); + uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce.guid++ ) + + uncached; + } + + // Put hash and anti-cache on the URL that will be requested (gh-1732) + s.url = cacheURL + uncached; + + // Change '%20' to '+' if this is encoded form body content (gh-2658) + } else if ( s.data && s.processData && + ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) { + s.data = s.data.replace( r20, "+" ); + } + + // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. + if ( s.ifModified ) { + if ( jQuery.lastModified[ cacheURL ] ) { + jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] ); + } + if ( jQuery.etag[ cacheURL ] ) { + jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] ); + } + } + + // Set the correct header, if data is being sent + if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) { + jqXHR.setRequestHeader( "Content-Type", s.contentType ); + } + + // Set the Accepts header for the server, depending on the dataType + jqXHR.setRequestHeader( + "Accept", + s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ? + s.accepts[ s.dataTypes[ 0 ] ] + + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) : + s.accepts[ "*" ] + ); + + // Check for headers option + for ( i in s.headers ) { + jqXHR.setRequestHeader( i, s.headers[ i ] ); + } + + // Allow custom headers/mimetypes and early abort + if ( s.beforeSend && + ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) { + + // Abort if not done already and return + return jqXHR.abort(); + } + + // Aborting is no longer a cancellation + strAbort = "abort"; + + // Install callbacks on deferreds + completeDeferred.add( s.complete ); + jqXHR.done( s.success ); + jqXHR.fail( s.error ); + + // Get transport + transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR ); + + // If no transport, we auto-abort + if ( !transport ) { + done( -1, "No Transport" ); + } else { + jqXHR.readyState = 1; + + // Send global event + if ( fireGlobals ) { + globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] ); + } + + // If request was aborted inside ajaxSend, stop there + if ( completed ) { + return jqXHR; + } + + // Timeout + if ( s.async && s.timeout > 0 ) { + timeoutTimer = window.setTimeout( function() { + jqXHR.abort( "timeout" ); + }, s.timeout ); + } + + try { + completed = false; + transport.send( requestHeaders, done ); + } catch ( e ) { + + // Rethrow post-completion exceptions + if ( completed ) { + throw e; + } + + // Propagate others as results + done( -1, e ); + } + } + + // Callback for when everything is done + function done( status, nativeStatusText, responses, headers ) { + var isSuccess, success, error, response, modified, + statusText = nativeStatusText; + + // Ignore repeat invocations + if ( completed ) { + return; + } + + completed = true; + + // Clear timeout if it exists + if ( timeoutTimer ) { + window.clearTimeout( timeoutTimer ); + } + + // Dereference transport for early garbage collection + // (no matter how long the jqXHR object will be used) + transport = undefined; + + // Cache response headers + responseHeadersString = headers || ""; + + // Set readyState + jqXHR.readyState = status > 0 ? 4 : 0; + + // Determine if successful + isSuccess = status >= 200 && status < 300 || status === 304; + + // Get response data + if ( responses ) { + response = ajaxHandleResponses( s, jqXHR, responses ); + } + + // Use a noop converter for missing script but not if jsonp + if ( !isSuccess && + jQuery.inArray( "script", s.dataTypes ) > -1 && + jQuery.inArray( "json", s.dataTypes ) < 0 ) { + s.converters[ "text script" ] = function() {}; + } + + // Convert no matter what (that way responseXXX fields are always set) + response = ajaxConvert( s, response, jqXHR, isSuccess ); + + // If successful, handle type chaining + if ( isSuccess ) { + + // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. + if ( s.ifModified ) { + modified = jqXHR.getResponseHeader( "Last-Modified" ); + if ( modified ) { + jQuery.lastModified[ cacheURL ] = modified; + } + modified = jqXHR.getResponseHeader( "etag" ); + if ( modified ) { + jQuery.etag[ cacheURL ] = modified; + } + } + + // if no content + if ( status === 204 || s.type === "HEAD" ) { + statusText = "nocontent"; + + // if not modified + } else if ( status === 304 ) { + statusText = "notmodified"; + + // If we have data, let's convert it + } else { + statusText = response.state; + success = response.data; + error = response.error; + isSuccess = !error; + } + } else { + + // Extract error from statusText and normalize for non-aborts + error = statusText; + if ( status || !statusText ) { + statusText = "error"; + if ( status < 0 ) { + status = 0; + } + } + } + + // Set data for the fake xhr object + jqXHR.status = status; + jqXHR.statusText = ( nativeStatusText || statusText ) + ""; + + // Success/Error + if ( isSuccess ) { + deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] ); + } else { + deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] ); + } + + // Status-dependent callbacks + jqXHR.statusCode( statusCode ); + statusCode = undefined; + + if ( fireGlobals ) { + globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError", + [ jqXHR, s, isSuccess ? success : error ] ); + } + + // Complete + completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] ); + + if ( fireGlobals ) { + globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] ); + + // Handle the global AJAX counter + if ( !( --jQuery.active ) ) { + jQuery.event.trigger( "ajaxStop" ); + } + } + } + + return jqXHR; + }, + + getJSON: function( url, data, callback ) { + return jQuery.get( url, data, callback, "json" ); + }, + + getScript: function( url, callback ) { + return jQuery.get( url, undefined, callback, "script" ); + } +} ); + +jQuery.each( [ "get", "post" ], function( _i, method ) { + jQuery[ method ] = function( url, data, callback, type ) { + + // Shift arguments if data argument was omitted + if ( isFunction( data ) ) { + type = type || callback; + callback = data; + data = undefined; + } + + // The url can be an options object (which then must have .url) + return jQuery.ajax( jQuery.extend( { + url: url, + type: method, + dataType: type, + data: data, + success: callback + }, jQuery.isPlainObject( url ) && url ) ); + }; +} ); + +jQuery.ajaxPrefilter( function( s ) { + var i; + for ( i in s.headers ) { + if ( i.toLowerCase() === "content-type" ) { + s.contentType = s.headers[ i ] || ""; + } + } +} ); + + +jQuery._evalUrl = function( url, options, doc ) { + return jQuery.ajax( { + url: url, + + // Make this explicit, since user can override this through ajaxSetup (#11264) + type: "GET", + dataType: "script", + cache: true, + async: false, + global: false, + + // Only evaluate the response if it is successful (gh-4126) + // dataFilter is not invoked for failure responses, so using it instead + // of the default converter is kludgy but it works. + converters: { + "text script": function() {} + }, + dataFilter: function( response ) { + jQuery.globalEval( response, options, doc ); + } + } ); +}; + + +jQuery.fn.extend( { + wrapAll: function( html ) { + var wrap; + + if ( this[ 0 ] ) { + if ( isFunction( html ) ) { + html = html.call( this[ 0 ] ); + } + + // The elements to wrap the target around + wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true ); + + if ( this[ 0 ].parentNode ) { + wrap.insertBefore( this[ 0 ] ); + } + + wrap.map( function() { + var elem = this; + + while ( elem.firstElementChild ) { + elem = elem.firstElementChild; + } + + return elem; + } ).append( this ); + } + + return this; + }, + + wrapInner: function( html ) { + if ( isFunction( html ) ) { + return this.each( function( i ) { + jQuery( this ).wrapInner( html.call( this, i ) ); + } ); + } + + return this.each( function() { + var self = jQuery( this ), + contents = self.contents(); + + if ( contents.length ) { + contents.wrapAll( html ); + + } else { + self.append( html ); + } + } ); + }, + + wrap: function( html ) { + var htmlIsFunction = isFunction( html ); + + return this.each( function( i ) { + jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html ); + } ); + }, + + unwrap: function( selector ) { + this.parent( selector ).not( "body" ).each( function() { + jQuery( this ).replaceWith( this.childNodes ); + } ); + return this; + } +} ); + + +jQuery.expr.pseudos.hidden = function( elem ) { + return !jQuery.expr.pseudos.visible( elem ); +}; +jQuery.expr.pseudos.visible = function( elem ) { + return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length ); +}; + + + + +jQuery.ajaxSettings.xhr = function() { + try { + return new window.XMLHttpRequest(); + } catch ( e ) {} +}; + +var xhrSuccessStatus = { + + // File protocol always yields status code 0, assume 200 + 0: 200, + + // Support: IE <=9 only + // #1450: sometimes IE returns 1223 when it should be 204 + 1223: 204 + }, + xhrSupported = jQuery.ajaxSettings.xhr(); + +support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported ); +support.ajax = xhrSupported = !!xhrSupported; + +jQuery.ajaxTransport( function( options ) { + var callback, errorCallback; + + // Cross domain only allowed if supported through XMLHttpRequest + if ( support.cors || xhrSupported && !options.crossDomain ) { + return { + send: function( headers, complete ) { + var i, + xhr = options.xhr(); + + xhr.open( + options.type, + options.url, + options.async, + options.username, + options.password + ); + + // Apply custom fields if provided + if ( options.xhrFields ) { + for ( i in options.xhrFields ) { + xhr[ i ] = options.xhrFields[ i ]; + } + } + + // Override mime type if needed + if ( options.mimeType && xhr.overrideMimeType ) { + xhr.overrideMimeType( options.mimeType ); + } + + // X-Requested-With header + // For cross-domain requests, seeing as conditions for a preflight are + // akin to a jigsaw puzzle, we simply never set it to be sure. + // (it can always be set on a per-request basis or even using ajaxSetup) + // For same-domain requests, won't change header if already provided. + if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) { + headers[ "X-Requested-With" ] = "XMLHttpRequest"; + } + + // Set headers + for ( i in headers ) { + xhr.setRequestHeader( i, headers[ i ] ); + } + + // Callback + callback = function( type ) { + return function() { + if ( callback ) { + callback = errorCallback = xhr.onload = + xhr.onerror = xhr.onabort = xhr.ontimeout = + xhr.onreadystatechange = null; + + if ( type === "abort" ) { + xhr.abort(); + } else if ( type === "error" ) { + + // Support: IE <=9 only + // On a manual native abort, IE9 throws + // errors on any property access that is not readyState + if ( typeof xhr.status !== "number" ) { + complete( 0, "error" ); + } else { + complete( + + // File: protocol always yields status 0; see #8605, #14207 + xhr.status, + xhr.statusText + ); + } + } else { + complete( + xhrSuccessStatus[ xhr.status ] || xhr.status, + xhr.statusText, + + // Support: IE <=9 only + // IE9 has no XHR2 but throws on binary (trac-11426) + // For XHR2 non-text, let the caller handle it (gh-2498) + ( xhr.responseType || "text" ) !== "text" || + typeof xhr.responseText !== "string" ? + { binary: xhr.response } : + { text: xhr.responseText }, + xhr.getAllResponseHeaders() + ); + } + } + }; + }; + + // Listen to events + xhr.onload = callback(); + errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" ); + + // Support: IE 9 only + // Use onreadystatechange to replace onabort + // to handle uncaught aborts + if ( xhr.onabort !== undefined ) { + xhr.onabort = errorCallback; + } else { + xhr.onreadystatechange = function() { + + // Check readyState before timeout as it changes + if ( xhr.readyState === 4 ) { + + // Allow onerror to be called first, + // but that will not handle a native abort + // Also, save errorCallback to a variable + // as xhr.onerror cannot be accessed + window.setTimeout( function() { + if ( callback ) { + errorCallback(); + } + } ); + } + }; + } + + // Create the abort callback + callback = callback( "abort" ); + + try { + + // Do send the request (this may raise an exception) + xhr.send( options.hasContent && options.data || null ); + } catch ( e ) { + + // #14683: Only rethrow if this hasn't been notified as an error yet + if ( callback ) { + throw e; + } + } + }, + + abort: function() { + if ( callback ) { + callback(); + } + } + }; + } +} ); + + + + +// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432) +jQuery.ajaxPrefilter( function( s ) { + if ( s.crossDomain ) { + s.contents.script = false; + } +} ); + +// Install script dataType +jQuery.ajaxSetup( { + accepts: { + script: "text/javascript, application/javascript, " + + "application/ecmascript, application/x-ecmascript" + }, + contents: { + script: /\b(?:java|ecma)script\b/ + }, + converters: { + "text script": function( text ) { + jQuery.globalEval( text ); + return text; + } + } +} ); + +// Handle cache's special case and crossDomain +jQuery.ajaxPrefilter( "script", function( s ) { + if ( s.cache === undefined ) { + s.cache = false; + } + if ( s.crossDomain ) { + s.type = "GET"; + } +} ); + +// Bind script tag hack transport +jQuery.ajaxTransport( "script", function( s ) { + + // This transport only deals with cross domain or forced-by-attrs requests + if ( s.crossDomain || s.scriptAttrs ) { + var script, callback; + return { + send: function( _, complete ) { + script = jQuery( " + + + + + + + + + + + + + + + + + + + + + +
+
+
+ +
+
+
+ + +
+ + + + +
+ + + +
+ +

Blog Posts

+ + + + + + + + + +
+

2022

+
+ + + + + +
+
+ +

+ + Announcing public binaries for Spack + + +

+ + + +

Spack was designed as a from-source package manager, but today users can stop +waiting for builds. Spack has been able to create binary build caches for sever...

+
+
+ + +
+ Back to top ↑ +
+ +
+

2021

+
+ + + + + +
+
+ +

+ + Changes to bootstrapping in Spack v0.17 + + +

+ + + +

Starting with Spack v0.17, the new concretizer will be the default, and Spack will automatically +install a new dependency (Clingo) from binaries. You can opt...

+
+
+ + + + + + +
+
+ +

+ + Podcast: Spack on CppCast + + +

+ + + +

The CppCast podcast recently hosted Spack creator Todd Gamblin and core developer Greg Becker. They discuss a range of topics including an overview of the ex...

+
+
+ + + + + + +
+
+ +

+ + ECP annual meeting videos now available + + +

+ + + +

Spack is the software deployment tool of the Exascale Computing Project (ECP), a joint effort between the DOE Office of Science and NNSA that brings several ...

+
+
+ + +
+ Back to top ↑ +
+ +
+

2020

+
+ + + + + +
+
+ +

+ + Spack User Survey 2020 + + +

+ + + +

Results from the Spack 2020 User Survey are out! Check out our summary below. +

+
+
+ + + + + + +
+
+ +

+ + Spack featured on The Next Platform + + +

+ + + +

The Next Platform provides in-depth coverage of high-end computing at large enterprises, supercomputing centers, hyperscale data centers, and public clouds. ...

+
+
+ + + + + + +
+
+ +

+ + Spack at SC20 + + +

+ + + +

This year SC20 is fully virtual with events and sessions conducted over two weeks. Check out the Spack lineup below. +

+
+
+ + + + + + +
+ +
+ + + + + + +
+
+ +

+ + Working remotely: the Spack team + + +

+ + + +

With much of the tech sphere working from home right now, a Better Scientific Software blog post describes the Spack team’s experience working remotely. The ...

+
+
+ + + + + + +
+
+ +

+ + Podcast: Let’s Talk Exascale + + +

+ + + +

The Exascale Computing Project’s Let’s Talk Exascale podcast has a new episode featuring Spack: “Flexible Package Manager Automates the Deployment of Softwar...

+
+
+ + + + + + +
+
+ +

+ + Profile of Greg Becker + + +

+ + + +

Spack contributor Greg Becker has many talents, not the least of which is scaling rock faces. LLNL Computing profiled this computer scientist in a piece titl...

+
+
+ + + + + + +
+
+ +

+ + Into a new decade: using Spack at LRZ + + +

+ + + +

An account of how Spack is used on the HPC systems of the +Leibniz Supercomputing Centre (LRZ): origins, ongoing development and +outlook on the future. +

+
+
+ + + + + + +
+
+ +

+ + Exascale watch: El Capitan + + +

+ + + +

HPC centers are always prepping for the next big thing. LLNL’s El Capitan supercomputer, coming online in 2023, will help usher in the exascale era with its ...

+
+
+ + + + + + +
+
+ +

+ + Spack at ECP annual meeting + + +

+ + + +

We’re thrilled to be part of the Exascale Computing Project (ECP), a joint effort between the DOE Office of Science and NNSA that brings several together nat...

+
+
+ + + + + + +
+
+ +

+ + Video: Spack at FOSDEM ‘20 + + +

+ + + +

FOSDEM promotes the widespread use of free and open source software. The 2020 conference took place in Brussels, Belgium, on February 1–2. The FOSDEM website...

+
+
+ + + + + + +
+
+ +

+ + Spack on Microsoft Azure VMs + + +

+ + + +

Another HPC cloud use case! A Microsoft Tech Community blog post describes the steps for using Spack to build and install packages on the Azure cloud for HPC...

+
+
+ + +
+ Back to top ↑ +
+ +
+

2019

+
+ + + + + +
+
+ +

+ + Spack wins R&D 100 award + + +

+ + + +

The trade journal R&D World Magazine announced the winners of its annual awards on October 31. And Spack is one of the winners! The competition recognize...

+
+
+ + + + + + +
+
+ +

+ + Spack wins FLC award + + +

+ + + +

We’re excited to announce that Spack received a regional technology transfer award from the Federal Laboratory Consortium (FLC). The FLC has been around sinc...

+
+
+ + + + + + +
+
+ +

+ + Spack at SC19 + + +

+ + + +

SC19 kicks off this week in Denver, and there are Spack events every day. Make sure they’re all on your calendar with the list below. +

+
+
+ + + + + + +
+
+ +

+ + Spack has a new website + + +

+ + + +

+Until now, spack.io has mostly been a landing page – an easy-to-remember +URL with a brief description of Spack and links out to other, more +important projec...

+
+
+ + + + + + +
+
+ +

+ + Spack on AWS cluster + + +

+ + + +

Deploying an HPC cluster on Amazon Web Services might sound daunting, but it’s possible with Spack. Harvard’s Jiawei Zhuang has written a guide for standing ...

+
+
+ + +
+ Back to top ↑ +
+ + +
+
+ + +
+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/bssw-working-remotely/index.html b/bssw-working-remotely/index.html new file mode 100644 index 00000000..13f9dffd --- /dev/null +++ b/bssw-working-remotely/index.html @@ -0,0 +1,431 @@ + + + + + + + +Working remotely: the Spack team - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+
+
+ +
+
+
+ + +
+ + + + + + +
+ + + + + +
+ + + + + +
+ +
+

+ +

+ + + +
+ + +
+ +

With much of the tech sphere working from home right now, a Better Scientific Software blog post describes the Spack team’s experience working remotely. The Spack team has had to make some adjustments without being able to hold face-to-face tutorials and attend events in person, but there are a lot of online communication opportunities (e.g., Slack) to keep the community connected. A big difference-maker is having robust documentation so users can help themselves.

+ + +
+ +
+ + + + + + + +

+ Tags: + + + + + +

+ + + + + + +

Updated:

+ +
+ + + + + + + +
+ + +
+ + + +
+ + +
+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/changes-spack-v017/index.html b/changes-spack-v017/index.html new file mode 100644 index 00000000..56b3cf19 --- /dev/null +++ b/changes-spack-v017/index.html @@ -0,0 +1,548 @@ + + + + + + + +Changes to bootstrapping in Spack v0.17 - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+
+
+ +
+
+
+ + +
+ + + + + + +
+ + + + + +
+ + + + + +
+ +
+

+ +

+ + + +
+ + +
+ +

Starting with Spack v0.17, the new concretizer will be the default, and Spack will automatically +install a new dependency (Clingo) from binaries. You can optionally disable this bootstrapping.

+ +

Spack and its own dependencies

+ +

Since its earliest releases, Spack has had +software requirements, +and we’ve tried to restrict them to very basic system requirements that you’d find on most +machines. A compiler, patch, make, etc. are commonly found on at least Linux and macOS systems, +and we’ve expected users to make them available themselves.

+ +

With Spack v0.16, we introduced an option to use a new concretizer (dependency solver), which is +based on Clingo under the hood. Clingo is a very powerful +Answer Set Programming system – it lets us solve the complex constraint problems among Spack +packages – all the versions, conflicts, feature requirements, optional dependencies, and +compiler/target compatibility issues are now handled by Clingo +(more here). +Using Clingo, we’ve been able to handle much more complex Spack environments, and we’ve been able +to fix issues where the old, greedy concretizer would fail on concretizable specs, or where it +would just make incorrect decisions. The new concretizer is more maintainable and allows us to +develop features rapidly. +It will enable us to more aggressively +reuse dependencies and to model more complex software +relationships in the future.

+ +

We’re making the new concretizer the default

+ +

In Spack v0.17, we will make the new concretizer the default, but that means that Clingo will be +a prerequisite, and it is not something most people will have installed by default. However, we +want Spack to be just as usable out of the box after this change. In particular, we want spack +install to work immediately after you clone Spack, just like it did before.

+ +

And we’re bootstrapping it from binaries

+ +

What we decided is that from v0.17 on Spack will, by default, install some of its dependencies +from a public buildcache of portable +binaries. The source code we use to create this buildcache is open and +hosted on GitHub. The bootstrapping procedure +will be transparent – the first concretization you do will just be slightly slower while the +binary packages are fetched from the buildcache and verified by their SHA256 checksum. It looks +like this:

+ +
$ spack find -b
+==> Showing internal bootstrap store at "/home/spack/.spack/bootstrap/store"
+==> 0 installed packages
+
+$ spack spec zlib
+Input spec
+--------------------------------
+zlib
+
+Concretized
+--------------------------------
+zlib@1.2.11%gcc@11.1.0+optimize+pic+shared arch=linux-ubuntu18.04-broadwell
+
+$ spack find -b
+==> Showing internal bootstrap store at "/home/spack/.spack/bootstrap/store"
+==> 2 installed packages
+-- linux-rhel5-x86_64 / gcc@9.3.0 -------------------------------
+clingo-bootstrap@spack  python@3.6
+
+ +

This default should preserve the “clone and run” simplicity in setting up Spack that you’re used +to.

+ +

What if I don’t want to use Spack’s binaries?

+ +

For those of you who do not want to use our public binaries, you can opt out of bootstrapping, +and Clingo will be built from source instead. To disallow bootstrapping from binaries, but still +permit Spack to bootstrap from sources, just run:

+ +
$ spack bootstrap untrust github-actions
+==> "github-actions" is now untrusted and will not be used for bootstrapping
+
+ +

To completely disable any bootstrapping, you can run:

+ +
$ spack bootstrap disable
+
+ +

If you do this, you’ll need to ensure for yourself that Spack’s prerequisites are properly +installed. You can use this option, for example, if you know that Clingo is already installed +(e.g., using pip) in the python you’re using to run Spack.

+ +

For more details on how bootstrapping will work, you can check out the +pull request #22720. Also keep an eye on our +permanently-pinned issue for other high-impact +changes arriving soon in Spack develop.

+ + +
+ + + + + + + + + +
+ + +
+ + + +
+ + +
+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/cppcast-podcast/index.html b/cppcast-podcast/index.html new file mode 100644 index 00000000..00e825e2 --- /dev/null +++ b/cppcast-podcast/index.html @@ -0,0 +1,433 @@ + + + + + + + +Podcast: Spack on CppCast - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+
+
+ +
+
+
+ + +
+ + + + + + +
+ + + + + +
+ + + + + +
+ +
+

+ +

+ + + +
+ + +
+ +

The CppCast podcast recently hosted Spack creator Todd Gamblin and core developer Greg Becker. They discuss a range of topics including an overview of the exascale computing landscape, documentation generators, floating-point numbers and performance standards, a new project focusing on ABI (application binary interface) compatibility, getting the most out of heterogeneous architectures, and of course Spack. The episode runs 59:13. Show notes and related links are provided on the episode page.

+ + +
+ +
+ + + + + + + +

+ Tags: + + + , + + + + +

+ + + + + + +

Updated:

+ +
+ + + + + + + +
+ + +
+ + + +
+ + +
+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/ecp-podcast-episode-67/index.html b/ecp-podcast-episode-67/index.html new file mode 100644 index 00000000..07f6eaf6 --- /dev/null +++ b/ecp-podcast-episode-67/index.html @@ -0,0 +1,435 @@ + + + + + + + +Podcast: Let’s Talk Exascale - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+
+
+ +
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+ + +
+ + + + + + +
+ + + + + +
+ + + + + +
+ +
+

+ +

+ + + +
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The Exascale Computing Project’s Let’s Talk Exascale podcast has a new episode featuring Spack: “Flexible Package Manager Automates the Deployment of Software on Supercomputers”. Todd Gamblin describes Spack’s role in the ECP’s software stack, the Spack-related events at SC19, and the R&D 100 Award. The converation covers what it’s like to work with Spack’s open source community and the version 0.13 release (now updated to v0.14). Episode 67 runs 5:54 and includes a transcript.

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Spack is the software deployment tool of the Exascale Computing Project (ECP), a joint effort between the DOE Office of Science and NNSA that brings several together national labs. These combined forces tackle the hardware, software, and application challenges inherent in the DOE/NNSA’s scientific and national security missions. The ECP’s annual meeting was hed virtually this year on April 12-16. The agenda included two Spack sessions that are now available on YouTube:

+ +
    +
  • Spack BoF (runtime 1:00:40): This “birds of a feather” gathering details major developments in Spack releases, collaborative work with the E4S team, roadmap for future development, and results from our community survey. The session was led by Todd Gamblin, Greg Becker, Tammy Dahlgren, Peter Scheibel, Richarda Butler, and Sergei Shudler.
  • +
  • Using Spack to Accelerate Developer Workflows (runtime 6:14:42): This tutorial focuses on developer workflows, covering covered installation, package authorship, Spack’s dependency model, and Spack environments and configuration. Participants can learn new skills in this tutorial, even if they have participated in Spack tutorials in the past. Presenters were Todd Gamblin, Greg Becker, Peter Scheibel, Tammy Dahlgren, and Rob Blake. See also Spack’s tutorial docs.
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2024

+ +

HPCIC HPC Tutorials

+

6 - 7 August 2024 | Virtual +This is a free, full-day tutorial spread over two days. Register (by 4 August).

+ +

PEARC 2024

+

21 - 25 July 2024 | In person +Full day, in-person tutorial. +Register

+ +

Software Management Course at CSCS

+

13 June 2024  +Advanced Spack course Slides

+ +

ISC High Performance

+

12 - 16 May 2024 | In person +Tutorial Slides

+ +

2023

+ +

RADIUSS Tutorial Series 2023

+

8 - 9 August 2023 | Virtual +Full-day tutorial spread over two days. Tutorial Slides and Video

+ +

PEARC 2023

+

23 - 27 July 2023 | In person +Tutorial Slides.

+ +

CINECA 2023

+

13 - 14 Feb 2023 | In person +Tutorial Slides

+ +

2022

+ +

RADIUSS AWS Tutorials 2022

+

1 - 2 August 2022 | Virtual +This was a full-day tutorial spread over two days. Slides

+ +

PEARC 2022

+

10 - 14 July 2022 | In person +Tutorial Slides

+ +

ISC High Performance

+

29 May 2022 | In person +Tutorial Slides

+ +

2021

+ +

[Supercomputing (SC21)](

+

14 - 19 November 2021 | Hybrid +Tutorial Slides

+ +

AHUG Hackathon: Cloud Hackathon for Arm-Based HPC

+

12 July 2021 (all week) | Online +Spack joins AWS and the Arm HPC user group for a community hackathon beginning on July 12. Participating teams will choose from a list of codes that already have Spack recipes and use pre-built AWS clusters. The Spack team will be live on Zoom to whiteboard ideas and help with troubleshooting. Register or read more about what to expect.

+ +

ISC High Performance

+

24 June - 2 July 2021 | Online +This year’s ISC conference will be held virtually. Register to join us for the Spack community BoF and tutorial.

+ + + +

ECP Annual Meeting

+

12-16 April 2021 | Online +The Exascale Computing Project’s annual meeting was virtual this year. Spack hosted a BoF session and tutorial, both of which are posted to YouTube.

+ +

2020

+ +

Supercomputing (SC20)

+

9-19 November 2020 | Online +This year SC20 was fully virtual with events and sessions conducted over two weeks. Check out the Spack lineup in this list.

+ +

CppCon: Build All the Things with Spack

+

20 October 2020 | Online +CppCon is an annual, week-long gathering for the C++ community. This lightning talk describes Spack’s build model and features and explains how to use it for any C++ project. The video runs 6:53.

+ +

Spack on FLOSS for Science Podcast

+

3 September 2020 | Online +The FLOSS for Science podcast showcases open source software uses in science. Episode 30 covers the philosophy of Spack, its package management capabilities in HPC clusters, supported operating systems, and much more. The episode runs 52:26.

+ +

Spack Tutorial on AWS

+

28-29 July 2020 | Online +Amazon Web Services is hosting a two-day Spack tutorial broadly targeted at HPC users, developers, and user support teams. Each day consists of two 1.5-hour sessions with a 30-minute break in the middle (4-7:30pm CET / 7-10:30pm PT). The first day will cover Spack basics, while the second day will dive deeper on advanced features. Videos from day 1 (3:19:18) and day 2 (3:30:18) are available.

+ +

HPC Best Practices Webinar Series

+

15 July 2020 | Online +The IDEAS Productivity project, in partnership with the DOE Computing Facilities of the ALCF, OLCF, and NERSC and the DOE Exascale Computing Project, hosts a webinar series on Best Practices for HPC Software Developers. A webinar titled “What’s New in Spack?” will be presented by Todd Gamblin on Wednesday, July 15 at 1:00-2:00 pm ET. Slides and a video (1:26:33) from the session are available.

+ +

ISC High Performance

+

22-24 June 2020 | Frankfurt, Germany (DEFERRED) +ISC (formerly known as the International Supercomputing Conference), the biggest Supercomputing event in Europe, is typically held in Frankfurt in June. This year’s conference has been replaced with a virtual event from June 22-24, but the virtual program will unfortunately not include BoFs (birds of a feather) or tutorials. The Spack community BoF and half-day tutorial will instead be held as part of the 2021 program.

+ +

RSE Stories Podcast: Spack Attack!

+

21 May 2020 | Online +In a recent RSE Stories podcast, Todd Gamblin shares his journey at a national Lab and how getting angry at software led to development of a hugely popular package manager, Spack. The episode runs 21:25. RSE is affiliated with the U.S. Research Software Engineer Association.

+ +

Working Remotely: The Spack Team

+

16 May 2020 | Online +Better Scientific Software’s blog features a post about the Spack team’s experience working remotely and interacting with the Spack community. The writeup offers insight into making the most of online communication opportunities and stresses the importance of providing robust documentation so users can help themselves.

+ +

CERN Grid Deployment Board Meeting

+

5 May 2020 | Geneva, Switzerland (REMOTE) +CERN operates the world’s largest particle physics laboratory and is home to the Large Hadron Collider. As part of the Worldwide LHC Computing Grid Collaboration (WLCG), CERN’s Grid Deployment Board will meet to talk about container distribution and modern packaging approaches – like Spack. Notable presentations for the Spack community include:

+ + + +

ASC S3C

+

14-16 April 2020 | Albuquerque, NM (POSTPONED) +The Tri-lab Advanced Simulation & Computing Sustainable Scientific Software Conference connects people from the ASC Tri-labs who are working to deliver scientific software solutions in a sustainable manner. Greg Becker will present a 20-minute talk and lead a half-day tutorial on Spack.

+ +

2019

+ +

Supercomputing (SC19)

+

17-22 November 2019 | Denver, CO +SC19 kicks off this week in Denver, and there are Spack events every day. Make sure they’re all on your calendar with this list.

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HPC centers are always prepping for the next big thing. LLNL’s El Capitan supercomputer, coming online in 2023, will help usher in the exascale era with its peak expected performance of 2 exaflops. In this HPCwire article, LLNL’s CTO Bronis de Supinski describes readying software deployment for El Capitan – a process that will include Spack as the machine’s deployment tool. The article also announces AMD as El Capitan’s processor technology (CPUs and GPUs) vendor.

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/favicon.ico b/favicon.ico new file mode 100644 index 00000000..06675cb9 Binary files /dev/null and b/favicon.ico differ diff --git a/feed.xml b/feed.xml new file mode 100644 index 00000000..8525a734 --- /dev/null +++ b/feed.xml @@ -0,0 +1,1290 @@ +Jekyll2024-06-27T07:10:28+00:00https://spack.io/feed.xmlSpackAnnouncing public binaries for Spack2022-05-31T02:00:00+00:002022-05-31T02:00:00+00:00https://spack.io/spack-binary-packagesimage

+ +

Spack was designed as a from-source package manager, but today users can stop waiting +for builds. Spack has been able to create binary build caches for several years, but +the onus of building the binaries has been on users: application teams, deployment teams +at HPC facilities, etc.

+ +

Today, enabled by some of the changes in +Spack v0.18, and helped by the +folks at AWS, Kitware, and the +E4S Project we’re starting down the path towards building binaries for +everything in Spack. Right now, we’ve got binaries for the following OS’s/architectures:

+ + + + + + + + + + + + + + + + + + + + + + + + + + +
OSTarget
amzn2 (Amazon Linux 2)graviton2
amzn2aarch64
amzn2x86_64_v4
ubuntu18.04x86_64
+ +

You can also browse the contents of these caches at +cache.spack.io.

+ +

If you already know what you’re doing, here’s what you need to try out the 0.18 binary +release:

+ +
spack mirror add binary_mirror  https://binaries.spack.io/releases/v0.18
+spack buildcache keys --install --trust
+
+ +

If you aren’t familiar with Spack binaries, we’ve got instructions for using these +binaries on graviton2 nodes below. Note that you do not need to have the Spack +v0.18 release checked out; you can use this cache from the latest develop branch, +too.

+ +

What’s different about Spack binaries?

+ +

Binary packaging isn’t new, and .rpm and .deb-based distributions have been around +for years, and conda is very popular in the Python world. In those distributions, +there is typically a 1:1 relationship between binary package specs and binaries, and +there’s a single, portable stack that’s maintained over time.

+ +

Traditionally, HPC users have avoided these types of systems, as they’re not built for +the specific machine we want to run on, and it’s hard to generarte binaries for all +the different types of machines we want to support. GPUs and specific microarchitectures +(e.g., skylake, cascadelake, etc.) complicate matters further.

+ +

image

+ +

Spack binaries are more like those used by Nix or Guix – they are caches of builds, +not specially prepared binaries, and installing a package from binary results in +essentially the same type of installation as building it from source. For determinism, +Packages are deployed with the dependencies they built with. One difference with Spack +is that we store considerably more metadata with our builds – the compiler, +microarchitecture target (using archspec), +flags, build options, and other metadata. We can use a single package to build all these +targets, and we can generate many optimized binaries from a single package +description. Here’s what that looks like:

+ +

image

+ +

With Spack, we’re trying to leverage our portable package DSL not only for portable +builds, but for optimized binaries as well. We can generate many optimized binaries +from the same package files and targets, and we can maintain many portable software +stacks using the same package descriptions. This reduces the burden on maintainers, as +we do not need to support many thousands of recipes – only as many recipes as we have +packages. And it is easy to assemble new software stacks on the fly using Spack +environments. Spack binaries are also relocatable so you can easily install them in +your home directory on your favorite HPC machine, without asking an admin for help.

+ +

CI for Rolling releases

+ +

image

+ +

To support combinatorial binaries, we are trying to push as much work upstream as +possible. We don’t want to have to spend a week preparing a new release, so we’ve built +cloud automation around these builds. For every PR to Spack, we rebuild the stacks we +support, and we allow contributors to iterate on their binary builds in the PR. We +test the builds on different architectures and different sites, and if all builds +changed or introduced by the PR pass, we mark the PR ready for merge. This allows us to +rely on the largest possible group of package maintainers to ensure that our builds keep +working all the time.

+ +

One issue with this approach is that we can’t trust builds done in pull requests. We +need to know if the PR builds work, but we may not know all contributors, and we +cannot trust things built before our core maintainers approve PRs. We’ve solved this by +bifurcating the build.

+ +

image

+ +

Every PR gets its own binary cache, and contributors can iterate on builds before any +maintianer has a chance to look at their work (though we do obviously have to approve CI +for first-time contributors). Contributors can work in parallel on their own stacks, and +per-PR build caches enable them to work quickly, rebuilding only chnanged packages.

+ +

Once a maintainer looks at the PR and approves, we rebuild any new binaries introduced +in a more trusted environment. This environment does not reuse any binary data from +the PR environment, which makes us sure that bad things from an earlier PR commit won’t +slip in through binaries. We do rebuilds for develop and release branches, and we +sign in a separate environment from the build so that signing keys are never exposed to +build system code. Finished, signed rebuilds are placed in a rolling develop binary +cache or in a per-release binary cache. You can find the public keys for the release at +spack.github.io/keys

+ +

Expanding the cache

+ +

This is only the tip of the iceberg. We are currently running 40,000 builds per week in +Amazon AWS to maintain our binaries, with help from the E4S project to keep them +working. Kitware is ensuring that our cloud build infrastructure can scale. You can see +stats from the build farm at stats.e4s.io.

+ +

We will be expanding to thousands more in the near future. Our goal is to eventually +cover all Spack packages, and to make source builds unnecessary for most users and +eliminate the long wait times between deciding on a simulation to run and your ability +to start a scientific simulation. Expect more compilers, more optimized builds, and more +pacakges.

+ +

Spack aims to lower the burden of maintaining a binary distribution and make it easy to +mix source builds with binaries. Packages available in the binary mirror will install +from binaries, and Spack will seamlessly transition to source builds for any packages +that are not available. Users will see approximately 20X installation speedups for +binary packages, and performance improvements for binary packaging are in the works.

+ +

Running Spack binaries in the cloud

+ +

On a brand new amazon-linux image, you can have optimized HPC applications installed +in only 7 commands. (If you already run Spack, it’s only 3 additional commands). You can +do this on a ParallelCluster instance if +you want to run these codes in parallel.

+ +

Let’s say you want to install gromacs.

+ +

First we need to get Spack installed. Spack has a couple low-level dependencies it needs +to be able to do anything, including a C/C++ compiler. Those aren’t on your image by +default, so you will need to install them with yum. sudo yum install -y git gcc +gcc-c++ gcc-gfortran

+ +

Now you can clone Spack from github and check out the latest release. Spack will +bootstrap the rest of what it needs to install the binary packages. You’ll also want to +setup the Spack shell integration so Spack is in your path and all its features are +available git clone https://github.com/spack/spack.git cd spack git checkout v0.18.0 +. share/spack/setup-env.sh

+ +

Now you can configure Spack to use the pre-built binary caches. You can either point it +to develop or releases/v0.18.0

+ +
spack mirror add binary_mirror  https://binaries.spack.io/develop
+spack buildcache keys --install --trust
+
+ +

You can compare the public key that Spack downloads against the ones available at +https://spack.github.io/keys/ for an alternate source of truth to validate source of the +binaries.

+ +

Now you can download optimized HPC application binaries

+ +
spack install gromacs
+
+ +

Spack will install from binaries for any package spec that is available, and will +aggressively reuse binaries for dependencies. You can see what’s available with Spack

+ +
spack buildcache list --allarch
+
+ +

Anything that’s not available will still reuse the available packages for dependencies, +and will seamlessly fail over to building from source for any components for which +binaries are not available.

+ +

10 minutes in and your application is already available, now you can go on to do the +science you set out to do.

]]>
Todd Gamblin
Changes to bootstrapping in Spack v0.172021-08-13T00:02:00+00:002021-08-13T00:02:00+00:00https://spack.io/changes-spack-v017Starting with Spack v0.17, the new concretizer will be the default, and Spack will automatically +install a new dependency (Clingo) from binaries. You can optionally disable this bootstrapping.

+ +

Spack and its own dependencies

+ +

Since its earliest releases, Spack has had +software requirements, +and we’ve tried to restrict them to very basic system requirements that you’d find on most +machines. A compiler, patch, make, etc. are commonly found on at least Linux and macOS systems, +and we’ve expected users to make them available themselves.

+ +

With Spack v0.16, we introduced an option to use a new concretizer (dependency solver), which is +based on Clingo under the hood. Clingo is a very powerful +Answer Set Programming system – it lets us solve the complex constraint problems among Spack +packages – all the versions, conflicts, feature requirements, optional dependencies, and +compiler/target compatibility issues are now handled by Clingo +(more here). +Using Clingo, we’ve been able to handle much more complex Spack environments, and we’ve been able +to fix issues where the old, greedy concretizer would fail on concretizable specs, or where it +would just make incorrect decisions. The new concretizer is more maintainable and allows us to +develop features rapidly. +It will enable us to more aggressively +reuse dependencies and to model more complex software +relationships in the future.

+ +

We’re making the new concretizer the default

+ +

In Spack v0.17, we will make the new concretizer the default, but that means that Clingo will be +a prerequisite, and it is not something most people will have installed by default. However, we +want Spack to be just as usable out of the box after this change. In particular, we want spack +install to work immediately after you clone Spack, just like it did before.

+ +

And we’re bootstrapping it from binaries

+ +

What we decided is that from v0.17 on Spack will, by default, install some of its dependencies +from a public buildcache of portable +binaries. The source code we use to create this buildcache is open and +hosted on GitHub. The bootstrapping procedure +will be transparent – the first concretization you do will just be slightly slower while the +binary packages are fetched from the buildcache and verified by their SHA256 checksum. It looks +like this:

+ +
$ spack find -b
+==> Showing internal bootstrap store at "/home/spack/.spack/bootstrap/store"
+==> 0 installed packages
+
+$ spack spec zlib
+Input spec
+--------------------------------
+zlib
+
+Concretized
+--------------------------------
+zlib@1.2.11%gcc@11.1.0+optimize+pic+shared arch=linux-ubuntu18.04-broadwell
+
+$ spack find -b
+==> Showing internal bootstrap store at "/home/spack/.spack/bootstrap/store"
+==> 2 installed packages
+-- linux-rhel5-x86_64 / gcc@9.3.0 -------------------------------
+clingo-bootstrap@spack  python@3.6
+
+ +

This default should preserve the “clone and run” simplicity in setting up Spack that you’re used +to.

+ +

What if I don’t want to use Spack’s binaries?

+ +

For those of you who do not want to use our public binaries, you can opt out of bootstrapping, +and Clingo will be built from source instead. To disallow bootstrapping from binaries, but still +permit Spack to bootstrap from sources, just run:

+ +
$ spack bootstrap untrust github-actions
+==> "github-actions" is now untrusted and will not be used for bootstrapping
+
+ +

To completely disable any bootstrapping, you can run:

+ +
$ spack bootstrap disable
+
+ +

If you do this, you’ll need to ensure for yourself that Spack’s prerequisites are properly +installed. You can use this option, for example, if you know that Clingo is already installed +(e.g., using pip) in the python you’re using to run Spack.

+ +

For more details on how bootstrapping will work, you can check out the +pull request #22720. Also keep an eye on our +permanently-pinned issue for other high-impact +changes arriving soon in Spack develop.

]]>
Massimiliano Culpo
Podcast: Spack on CppCast2021-05-28T00:02:00+00:002021-05-28T00:02:00+00:00https://spack.io/cppcast-podcastThe CppCast podcast recently hosted Spack creator Todd Gamblin and core developer Greg Becker. They discuss a range of topics including an overview of the exascale computing landscape, documentation generators, floating-point numbers and performance standards, a new project focusing on ABI (application binary interface) compatibility, getting the most out of heterogeneous architectures, and of course Spack. The episode runs 59:13. Show notes and related links are provided on the episode page.

]]>
ECP annual meeting videos now available2021-04-22T00:02:00+00:002021-04-22T00:02:00+00:00https://spack.io/ecp-videosSpack is the software deployment tool of the Exascale Computing Project (ECP), a joint effort between the DOE Office of Science and NNSA that brings several together national labs. These combined forces tackle the hardware, software, and application challenges inherent in the DOE/NNSA’s scientific and national security missions. The ECP’s annual meeting was hed virtually this year on April 12-16. The agenda included two Spack sessions that are now available on YouTube:

+ +
    +
  • Spack BoF (runtime 1:00:40): This “birds of a feather” gathering details major developments in Spack releases, collaborative work with the E4S team, roadmap for future development, and results from our community survey. The session was led by Todd Gamblin, Greg Becker, Tammy Dahlgren, Peter Scheibel, Richarda Butler, and Sergei Shudler.
  • +
  • Using Spack to Accelerate Developer Workflows (runtime 6:14:42): This tutorial focuses on developer workflows, covering covered installation, package authorship, Spack’s dependency model, and Spack environments and configuration. Participants can learn new skills in this tutorial, even if they have participated in Spack tutorials in the past. Presenters were Todd Gamblin, Greg Becker, Peter Scheibel, Tammy Dahlgren, and Rob Blake. See also Spack’s tutorial docs.
  • +
]]>
Spack User Survey 20202020-12-02T00:03:00+00:002020-12-02T00:03:00+00:00https://spack.io/spack-user-survey-2020Introduction + +

Spack has been around for a while, and we’ve always felt like we have a +pretty good sense of the community through channels like GitHub, Slack, +and our Google group. However, the project is getting larger, and we +wanted to better understand the community’s needs with more structured +feedback. Spack is funded by the NNSA +ASC Program +and the U.S. +Exascale Computing Project (ECP), and we +wanted to understand the different needs of ASC, ECP, and other types of +users.

+ +

So, this year, we ran our first ever Spack user survey. Read on to see +the results.

+ +

About the survey

+ +

The survey has 26 multiple-choice questions and 6 longer-form questions. +It was open from September 28 to October 9, and there were 169 +respondents. We advertised to the broadest audiences we knew how to +reach. Specifically, we advertised the survey through:

+ +
    +
  • Our Google group (402 members);
  • +
  • Slack (~900 members);
  • +
  • Twitter (~1,100 followers);
  • +
  • the ECP-wide mailing list (ECP is ~1,000 people); and
  • +
  • the El Capitan Center of Excellence (COE) mailing list.
  • +
+ +

There’s probably a lot of overlap between these lists, so this may not be +as wide an audience as it would seem. It’s probably biased towards U.S. +users, as the people on the mailing lists are very U.S.-centric. So, +while the sample is by no means scientific, we know at least that it +covers a lot of Spack users.

+ +

Data

+ +

The results are summarized here, but you can get the full data set and +the scripts we used to generate these charts +here. There are a lot of +results – let us know if you find anything interesting that we missed.

+ +

Thanks!

+ +

Thanks to the 169 users who filled out the survey, both for this feedback +and for your continuing contributions to Spack! This project wouldn’t be +possible without the community!

+ +

Demographics

+ +

In this section of the survey, we tried to understand the composition of +the Spack community.

+ +

ECP and Spack

+ +

The first question we asked was whether respondents were part of ECP.

+ +
+ + + +
+ +

ECP represents just over a third of the community (~35%, or 61 of 169 +respondents). It includes people from both sides of the U.S. Department +of Energy – NNSA laboratories like +LLNL, LANL, and +Sandia; and +Office of Science, laboratories like +ANL, ORNL, +LBL, PNNL, +BNL, and others. Under ECP, the Spack team is +focusing on delivering a software stack for the first U.S. exascale +machines, which includes upcoming systems like:

+ +
    +
  • LBL’s Perlmutter: AMD CPU / +NVIDIA GPU (pre-exascale)
  • +
  • ANL’s Aurora: Intel CPU / Intel GPU
  • +
  • ORNL’s Frontier: AMD CPU / AMD GPU
  • +
  • LLNL’s El Capitan: AMD CPU / AMD GPU
  • +
+ +

All of these are HPE/Cray systems, but the hardware is quite diverse +(particularly the GPUs). We wanted to see whether the users at the +bleeding edge of HPC had significantly different needs from the Spack +community as a whole. So, in most of the following sections, we present +responses for Spack and for ECP separately.

+ +

What kind of user are you?

+ +

We asked users what their role was at their organization.

+ +
+ + + +
+ +

Spack was originally targeted at user support teams and system +administrators, but by far the largest parts of the community are end +users (scientists/researchers) installing software on HPC machines (35%) +and software developers (41%). System administrators were ~11% of the +overall community, and user support staff were only 8%. In ECP, this is +even more pronounced – only a small fraction of respondents identified +as system administrators, and developers were nearly 43% of the ECP user +base.

+ +

Part of the absence of sysadmins may be that at DOE labs, administrators +don’t typically handle installation of user software – that’s left to +dedicated support teams who engage with users. Admins (at least in DOE) +tend to focus on keeping the machines running and managing the host OS +underneath Spack.

+ +

If you compare this to +EasyBuild’s latest survey +(slide 13), you’ll see that the composition of the communities is very +different. In EasyBuild’s similar survey, only 3% of the respondents +identified as developers, and only 9% were scientists. User support and +admins were 26% and 53% of the EasyBuild user base, respectively.

+ +

Where do you work?

+ +

We next asked users where they work.

+ +
+ + + +
+ +

The community as a whole is diverse. Slightly less than a third (31%) are +from Universities. 37.6% are from DOE NNSA and Office of Science +laboratories (more than all of ECP – so parts of DOE not in ECP are +included). Other public research labs make up 18% of Spack users, and +~13% are from private companies and cloud providers. Within ECP, a large +majority of users (76%) were from DOE labs, but there was still some +participation from public labs and universities.

+ +

Comparing again with +EasyBuild’s survey +(slide 13), we can see that EasyBuild has a much smaller percentage of +users from national computing centers (13% vs. 37%), and a larger +percentage of users from universities (55%). It is hard to tell exactly +how the proportions compare, as EasyBuild’s survey provided a “university +research group” option, while in our survey that is likely spread across +the “University HPC center” and “public research lab” categories.

+ +

What country are you in?

+ +
+ + + +
+ +

Just under 2/3 of Spack users are in the United States, and nearly +exactly 2/3 are from North America when our two Canadian respondents are +included. 27% are from Europe, 5% from Asia, and there was one respondent +each from the Middle East (Saudi Arabia) and South America (Argentina). +Within ECP (which is a U.S. DOE project), the proportion is much higher +– nearly 97% are from the U.S.

+ +

What are your primary application areas?

+ +
+ + + +
+ +

These results are mostly as we expected – most Spack users (~80%) are +doing traditional HPC and simulation. In the broader community around 30% +are doing computer science research, but within ECP around 50% are doing +CS research. In ECP, AI and bioinformatics were noticeably less emphasized +than in the broader Spack community. Interestingly, compiler testing was +the 7th most popular application area outside ECP, but the 4th most +popular inside ECP. Only one user reported using Spack for web +applications.

+ +

How did you find out about Spack?

+ +
+ + + +
+ +

Both in and outside ECP, about half of Spack users hear about the tool +via word of mouth. This result made us pretty happy – we think it means +that users are very willing to recommend Spack to friends. After word of +mouth, 22% people heard of Spack because it was used at their site. +Within ECP this was slightly more likely at 30%.

+ +

24% of users heard about Spack from outreach activities: tutorials, BOF +sessions, and presentations.

+ +

How long have you been using Spack?

+ +
+ + + +
+ +

Spack usage has been growing over time, and the number of users who join +the community each year is increasing. Most of the overall community has +been using Spack for less than two years. We also see this effect in the +number of contributors to the project on GitHub. In 2018, after the +project had been publicly available for 4 years, there were around 300 +contributors. 2 years later, there are nearly 700.

+ +

Within ECP, the community is older – most people started using Spack in +ECP 2-3 years ago. There has been less new adoption since then, which we +attribute to Spack’s rapid adoption in ECP. Spack caught on quickly +there, people have continued to use it, and there is not a large influx +of users into ECP. The population stays mostly the same over time.

+ +

Have you contributed to Spack?

+ +
+ + + +
+ +

Around 75% of users who responded have contributed to Spack in some way +or another, and most of those (60%) have contributed a package. Nearly +40% of users are active on Slack, and nearly 40% have filed issues on +GitHub.

+ +

It’s notable that Slack discussions are far more active than the Spack +mailing list – users seem to want to engage live rather than sending +emails back and forth.

+ +

Not many users (~10%) have contributed to documentation, but even this +small amount helps the project – this is around 16 people.

+ +

There don’t seem to be any special takeaways here for ECP, except that +ECP users seem to be slightly more likely to contribute a package (nearly +70% have done so).

+ +

Spack Usage

+ +

Having characterized the user base, we moved on to finding out how they +use Spack.

+ +

What version(s) of Spack do you use?

+ +
+ + + +
+ +

Spack users like to be on the bleeding edge, and it shows up the versions +of Spack they use. Just under 60% of users are using the develop branch +of Spack, and the number is higher (~65%) in ECP. The next most popular +version was 0.15, which was the latest Spack release at the time +of this survey.

+ +

Comparatively few users were on older versions, though a very small +number of people were using 0.10. A lot has happened since then – 0.10 +was released in January 2017, and there were around 1,000 packages then +(vs. 5,000 now). We hope the users still on 0.10 will upgrade – both for +features and for package fixes.

+ +

What OS do you use Spack on?

+ +
+ + + + + + +
+ OS's of Spack users ignoring (left) and considering (right) specific Linux + distributions. +
+
+ +

Spack is targeted at HPC, so it’s no surprise that nearly 100% of users +are using it on Linux. What users sometimes +forget is +that Spack also works on macOS. Around 35% of all users run Spack on +their macs, and over half the users within ECP are also running it on +macOS. A small number of users (<10%) are running Spack within the +Windows Subsystem for Linux. We don’t test there, but we’re told that +Spack works fine in the WSL environment.

+ +

If we look at the responses in more detail, we can see the specific Linux +distributions that users are running. The most popular, by far, are +CentOS and Red Hat. In ECP, Red Hat is especially popular. Ubuntu is the +next most popular after these, then macOS, then other Linux distributions +and WSL. SuSE is more popular within ECP than in the broader community, +likely because it is the Linux distribution that most Cray systems are +built on.

+ +

How many software installations have you done with Spack in the past year?

+ +
+ + + +
+ +

Almost 28% of the community has done over 200 software installations, and +over 12% have done over 1,000 installs. The ECP numbers are similar to +the general population, but the distribution is slightly shifted towards +larger numbers of installations.

+ +

What Python version(s) do you use to run Spack?

+ +
+ + + +
+ +

Support for Python 2 ended January 1, 2020, but nearly a year later, +around 40% of Spack users are still using Python 2.7. 4 users are even +using Python 2.6. Python 2.7 is still the system Python version on many +operating systems, including Red Hat 7 and CentOS 7, and on Red Hat and +CentOS 6 (which are still used at some sites) the default is 2.6.

+ +

While many projects can pick their version of Python, Spack is often the +tool people use to install newer versions of Python, and we don’t want +to make users use another installer just to install Spack’s dependencies. +We want it to work out of the box, so we try to make Spack work with the +system Python everywhere.

+ +

How bad would it be if Spack dropped support for Python 2.6?

+ +
+ + + +
+ +

We asked whether it would be OK for us to drop Python 2.6, and we found +that there are still around 4 hold-outs who really need Spack to work on +Python 2.6, and over 20% of people would be at least mildly +inconvenienced by this change. For the time being, we’ll keep supporting +Python 2.6, but you can probably expect its deprecation to be announced +sometime within the next year, as the last few Red Hat 6 installations +dwindle.

+ +

How bad would it be if Spack only worked with Python 3?

+ +
+ + + +
+ +

Eventually, we’d like to drop Python 2 entirely, but with 40% of users +still using 2.7, and with 36% of users likely to be bothered by the +shift, we’ll hold off on dropping 2.7, as well. Interestingly, while ECP +users were less likely than the broader community to completely oppose +dropping 2.6, they were more likely than the community to oppose +dropping 2.7.

+ +

How do you get installed Spack packages into your environment?

+ +
+ + + +
+ +

The most common way to use Spack packages is still through modules, and +module usage seems to be split about evenly between Lmod and TCL modules, +with some overlap. We were surprised to see that the spack load command +is the second most popular way to use Spack packages, only a few +percentage points behind modules.

+ +

We don’t have data on past usage of spack load, but we’ve tried to make +it easy to use everywhere, and this may have caused its usage to +increase. In particular, in earlier Spack releases, spack load +required modules in order to work (it was a thin layer around module +load). As of +Spack 0.14 in +early 2020, it only requires Spack’s own environment support – so you +can easily load a one-off package on your mac or personal Linux box where +you don’t already have modules installed.

+ +

After spack load, around 35% of users are making use of Spack +environments to load groups of packages together. Like spack load, +Spack environments require no support from the module system – they work +regardless of where Spack is deployed and provide a more portable +alternative to loading environment modules.

+ +

Which Spack features do you use?

+ +
+ + + +
+ +

While Spack +environments +ranked below modules for simply getting packages into PATH, +environments are actually the most widely used single feature of Spack +(at least on our list here). Around 2/3 of users say they use +environments. environments can be used to add packages to PATH, to +maintain a list of dependencies via spack.yaml, to version a +spack.yaml environment in a repo, to do +combinatorial builds, +to reproduce builds with spack.lock, to configure and run +CI pipelines, +and to +build container images.

+ +

Looking Ahead

+ +

We wanted to get a sense of what users will need from Spack in the coming +year, so we asked about upcoming architectures, Spack features, and +events.

+ +

Which CPUs do you expect to use with Spack in the next year?

+ +
+ + + +
+ +

Nearly everyone in the Spack community plans to run on Intel CPUs in the +next year, and around 80% expect to use Spack to build for AMD systems. +Just over 40% of users will run on ARM and just under 40% will run on +Power. Within ECP, the percentage of users that want to run on any of the +non-Intel CPUs is larger – as you might expect, ECP is targeting a more +diverse set of architectures. There were many more ECP users who expected +to run on Power than in the broader community, likely because the current +top two U.S. systems, Summit and Sierra, are Power machines.

+ +

We can’t draw a fair comparison with EasyBuild on this question, as +EasyBuild’s survey asked users what CPUs they were currently using +rather than what they expected to be using in the next year, and their +survey was done a year ago, and things are changing fast in HPC. So, take +it with a grain of salt, but the difference is still worth mentioning. In +the +EasyBuild survey +(slide 26), the vast majority of users were similarly running on Intel +machines. But, less than 20% were using AMD chips, less than 5% were +using Power, and only one user reported using ARM. It’s likely their +numbers for AMD and ARM will increase on the next survey.

+ +

Which GPUs do you expect to use with Spack in the next year?

+ +
+ + + +
+ +

All users in the Spack community expect to run on GPUs in the next year, +and over 90% plan to build for NVIDIA GPUs. Around half of the overall +community expects to build for AMD GPUs, and around 30% expect to build +for Intel GPUs. Within ECP, the percentage of users planning to run on +NVIDIA GPUs is very slightly lower, likely because NVIDIA will not be the +GPU on any of the initial three exascale machines. Aurora will be an +Intel GPU system and both Frontier and El Capitan will use AMD GPUs. As +you might expect, 80% of ECP users expect to use AMD GPUs and over half +expect to use Intel GPUs.

+ +

GPU usage in the EasyBuild community +was similarly high – 96.5% of EasyBuild users were compiling software +for GPUs – so it’s pretty clear that GPUs have become pervasive in HPC.

+ +

Which compilers do you expect to use with Spack in the next year?

+ +
+ + + +
+ +

As you might expect given the CPU and GPU results, Spack users +anticipate using a very wide range of compilers. gcc is still king, +with almost 100% of users expecting to use it, and LLVM and Intel +compilers are next on the list.

+ +

Interestingly, only around 60% planned to use nvcc, and a bit more than +40% planned to use NVIDIA’s HPC compilers. Given that over 90% of users +said they expected to build on NVIDIA GPUs, we’re tempted to explain the +discrepancy by saying that a large percentage of users expect to use +NVIDIA GPUs not through CUDA directly, but through GPU-optimized +libraries or through compiler capabilities like OpenMP offload. The same +can probably be said for AMD and Intel GPUs – the percentage of users +who plan to run with compilers specifically intended for these GPUs was +consistently lower than the number of users who anticipated using them.

+ +

Rank upcoming Spack features by importance

+ +
+ + + +
+ +

We asked respondents to rank some planned and not-yet-planned Spack +features by importance: “not important”, “slightly important”, “somewhat +important”, “very important”, and “critical”. The two most frequently +ranked “critical” (and also the top two features by average score) were +reusing external installs and the new concretizer. These are related, as +the new concretizer is needed to reuse existing installations.

+ +

After those, the most important features were better compiler flag +handling and better support for developers. Separate concretization of +build dependencies (i.e., using gcc for packages like CMake even if the +user asked that the main package be built with the Intel compilers) was +next on the list, followed by language virtuals (ability to depend on +cxx, c, or fortran and have that resolve to a compiler and runtime +library), automatic package maintainer notifications on GitHub, and build +testing.

+ +

The features rated least important were build testing, publicly +available optimized binary packages, package testing, cloud integration +for Spack, and Windows support, with the last three rated significantly +less important than all the others.

+ +

Every feature was listed as “critical” by at least some users, but there +are some clear preferences here that we’ll be trying to tailor our +efforts to. We already shipped the new concretizer as an experimental +feature in +Spack v0.16.0, and +we’ve already merged a number of fixes for it in +Spack v0.16.1. Separate +concretization of build dependencies and reusing existing installs are +both modifications that we’ll need to make to the new concretizer, and +we’ve already started looking into how we can provide them. Better +developer support, language virtuals, maintainer notifications, better +build testing, and package testing are already milestones for 2021.

+ +

The feature that stands out that we haven’t yet worked into our plans is +better compiler flag handling. Based on this survey we’re going to see if +we can work that into our schedule for 2021, as well.

+ +
+ + + + + + +
+ Feature ratings by workplace (left) and by job type (right). +
+
+ +

In addition to the community-wide averages above, we looked at whether +different segments of the community rated features differently. On the +right above, we split out average feature ratings by workplace, and on +the left we split them out by job type.

+ +

Overall, the rank order of features was similar across different +workplaces and job types. Reusing existing installs and the new +concretizer were consistently at the top of everyone’s list, and the +lowest-rated features had low ratings across the board. Industry users +prioritized cloud integration noticeably higher than other groups, and +user support staff placed a much higher value on package testing than +other job types (perhaps because they are involved in more package +testing efforts at their sites). Managers and ASCR labs rated separate +build dependencies lower than other groups. Other than these outliers +there were not significant deviations from the overall order of +preference.

+ +

There are some noticeable trends across groups. System administrators, +user support staff, and industry users tended to rate features as less +important across the board. It’s hard to know how to interpret this – it +could mean that they’re happy with the existing capabilities of Spack, or +that these particular improvements aren’t their top priorities.

+ +

If we had a (virtual) workshop on Spack, would you attend?

+ +

We’ve thought about having a Spack user meeting for a while, and we had +actually started planning for an inaugural Spack User Meeting earlier +this year. That fell apart when the pandemic hit. Other similar tools +have had good luck with meetings like this (e.g., +NixCon and the +EasyBuild User Meeting), +so we asked users what they thought of a potentially virtual meeting:

+ +
+ + + +
+ +

Just over half of users (over 85 people) said they would attend, and 17 +said they’d be willing to give a presentation. That seems like more than +enough for an initial Spack meeting, so expect us to announce something +for 2021.

+ +

Getting Help

+ +

We’re interested in making it easier to learn about Spack, so we asked +people how they’re doing it now.

+ +

Have you done a Spack tutorial?

+ +
+ + + +
+ +

We were surprised to see that over 60% of all our users have done a Spack +tutorial. Since 2016, We’ve been doing Spack tutorials at conferences +like Supercomputing, +ISC, and +PEARC, and this +year we had over 125 attendees at our virtual +Spack tutorial on AWS. This seems +to show that tutorials have been a very effective form of outreach, even +if they aren’t the main way people first hear about Spack (per our +earlier question). +At the very least, they likely contribute to the +high rate of contribution +in the community.

+ +

How do you get help with Spack when you need it?

+ +
+ + + +
+ +

Users go to the docs more than any other place for help with Spack. +Slack, +as mentioned above, +is also very popular – 50% of users use it to get help. We were happy to +see that around 40% of users get help from their coworkers, and when we +looked further at this data, those who got help from coworkers were not +confined to big laboratories – they came from +all the types of workplaces +that we considered.

+ +

How often do you consult the Spack documentation?

+ +
+ + + +
+ +

Users consult the documentation reasonably frequently – weekly to +monthly for most. A small fraction (14%) check it daily. ECP users check +the documentation less frequently on average than the community as a +whole, but +ECP users have also been using Spack for longer, +and are likely more familiar with it.

+ +

If there were commercial support for Spack, would you or your organization buy it?

+ +
+ + + +
+ +

We don’t have any plans to provide commercial support for Spack at the +moment, but it’s nice to know that 23%, or 39 users and their +organizations, might be willing to pay for it. That’s a fairly large +percentage of users willing to pay for support for an open source +product.

+ +

Quality of Spack

+ +

We wrapped up the multiple choice part of our survey with a final +question asking users to rate the quality of Spack.

+ +

How would you rate the overall quality of Spack, its community, docs, and packages?

+ +
+ + + +
+ +

Similar to our +question on features +above, users were asked to rate different parts of Spack as “horrible”, +“bad”, “ok”, “good”, and “excellent”. We split the results out by +workplace and job:

+ +
+ + + + + + +
+ Quality ratings by workplace (left) and by job type (right). +
+
+ +

Responses were positive on average for all categories. Only 3.5% of users +responded negatively for the quality of Spack overall (cf. +2% for EasyBuild, slide 60). Only 5% responded negatively for any aspect. Consistently, +the highest-rated aspect was the community, which is great, because Spack +wouldn’t be sustainable without its community. Just after the community +was Spack itself.

+ +

While both the community and Spack averaged “good” or higher overall, the +docs and packages had the lowest average ratings. While some users have +praised the documentation, +a lot of documentation has accumulated and it likely needs to be +organized better. Spack targets +many different kinds of users, +and there is not just one workflow. We’ve gotten a lot of requests to +provide clearer how-to guides for common site deployment and developer +workflows, which is something we plan to work on over the next year.

+ +

Spack packages are a harder problem. The package DSL is part of what +makes Spack unique – there is one template for each package, and the +same template lets you build any version or configuration of a package. +This makes it easier to port Spack packages to new systems, but it also +makes the testing surface for Spack packages very large. We think we +are still on the right path, for several reasons:

+ +
    +
  • Together with Kitware, we’ve built up a sophisticated CI system using +the support for +pipelines +built into Spack environments.
  • +
  • We’ve hooked up our GitLab instance to Spack’s main GitHub repository, +and within the next couple of weeks, we’ll be testing a subset of Spack +builds on every pull request.
  • +
  • These are the same builds used to produce ECP’s +Extreme Scale Scientific Software Stack (E4S).
  • +
+ +

One of our priorities for 2021 under ECP is hardening these builds and +testing Spack packages on a wide range of platforms, and now that the new +concretizer is in Spack, we expect to be able to steer Spack +configurations towards well-tested ones, based on builds in our pipeline +and under E4S. So, we expect package stability to get much better over +the coming year, and we’re hoping that it will show up in next year’s +survey responses.

+ +

Longer answers

+ +

We asked 6 long answer questions. If you want, you can read them all in +the data repository. The +number and length of responses to these was overwhelming, and we haven’t +come up with a great way to summarize them, but reading them all gave us +a great picture of what people in the community are up to. We’ve picked a +few responses per question and quoted them below.

+ +

Tell us briefly about your use case and your usual Spack workflow.

+ +
    +
  • +

    I am using Spack to build the software environment for our users on +our University’s centralized HPC system.

    +
  • +
  • +

    Using Spack to build complex applications natively. Moving the +build into containers, if possible with spack containerize.

    +
  • +
  • +

    We use spack to provide 3 consistent entry points into our nuclear +physics software environment: cvmfs, build_caches, containers.

    +
  • +
  • +

    Rather heterogeneous cluster with an environment per architecture. +Currently having lots of fun packaging bioinformatics tools.

    +
  • +
  • +

    Support Spack in Fugaku

    +
  • +
  • +

    I’m a math library developer and use spack to build third party +libraries e.g., blas, lapack, MPI, hypre, SuperLU_MT, +SuperLU_DIST, PETSc, and Trilinos both for developing on my +laptop and for continuous integration on a dedicated workstation.

    +
  • +
  • +

    We use spack to install most facility-provided software on OLCF HPC +machines.

    +
  • +
  • +

    Distributed build system with Spack environments

    +
  • +
+ +

What about Spack helps you the most?

+ +
    +
  • +

    The community

    +
  • +
  • +

    Greg Becker responding to my questions on Slack.

    +
  • +
  • +

    How Spack handles installation of multiple versions of the same app.

    +
  • +
  • +

    How Spack should be Linux OS agnostic (yet to be tested) so we can +experiment with offering other distros for users.

    +
  • +
  • +

    Absolute flexibility, especially compared to, i.e., nix. And +dependency handling, which I never want to do manually again.

    +
  • +
  • +

    I’m still in dependency hell, but Spack took me from the 7th circle +(violence - for the violence I’d like to commit against my keyboard +while building things) to the 3rd circle (gluttony - for the +voracious appetite I now have for spack-installed packages and the +indulgent number of dependencies they require).

    +
  • +
  • +

    Well-defined package specifications and solid concretization.

    +
  • +
  • +

    The concretizer (despite some issues) is the most helpful aspect of +Spack. It allows for automatic dependency management and +reproducibility.

    +
  • +
+ +

What are the biggest pain points in Spack for your workflow?

+ +
    +
  • +

    surprising re-concretizations, updating environments and removing old +packages

    +
  • +
  • +

    inter dependencies with many variants makes a huge/complicated +package file

    +
  • +
  • +

    Better parallel building of environments. I think Slurm integration +could be very good to have.

    +
  • +
  • +

    Right now, the time it takes to concretize in our deployment with ~2000 +packages already in the database.

    +
  • +
  • +

    Not having language virtual dependencies makes it harder to have +language polyfills for newer features when the compiler doesn’t support +them. It also is hard to say what compiler versions you support

    +
  • +
  • +

    c++ language standard dependencies, build dependency blow-up

    +
  • +
  • +

    It seems that we should specify external package path every time so it +would be great if Spack can detect preinstalled libraries.

    +
  • +
+ +

What’s the biggest thing we could do to improve Spack over the next year?

+ +
    +
  • +

    Keep doing outreach efforts, videos, tutorials, hackathons, whatever to +spread the voice more.

    +
  • +
  • +

    Python as a virtual dependency

    +
  • +
  • +

    The complaint I still have to field from people is “I tried to build a +simple package, and Spack built Python and CMake and and and and…” so +I think better deciphering of externals (which I know you’re working on +as we speak) would be good.

    +
  • +
  • +

    QA: less features but really solid CI on tagged releases, including +packages.

    +
  • +
  • +

    Cross compiler support, new concreteizer

    +
  • +
  • +

    Documentation organisation, examples, and explicit API listing of all + internal functionality.

    +
  • +
  • +

    New concretizer, maintainer bot

    +
  • +
  • +

    Build lots of buildcaches for each site to speed up builds. It could be +nice to have a cloud repository could be AWS, GCP, where spack host all +the buildcaches.

    +
  • +
  • +

    Fully-working backtracking concretizer

    +
  • +
  • +

    Don’t lose momentum.

    +
  • +
+ +

Are there key packages you’d like to see in Spack that are not included yet?

+ +
    +
  • +

    Probably new build system support like Julia / Golang

    +
  • +
  • +

    I would like to be able to contribute one day adding the Uintah +software suite

    +
  • +
  • +

    moose

    +
  • +
  • +

    WRF. I’m aware that it’s now included in develop branch.

    +
  • +
  • +

    None that we haven’t been able to rapidly write for ourselves.

    +
  • +
+ +

Do you have any other comments for us?

+ +
    +
  • +

    This project makes me enjoy coming into work.

    +
  • +
  • +

    Yes, I like spack, can’t do without it now.

    +
  • +
  • +

    It would be great if https://github.com/spack/spack-configs +included more DOE machines and were updated more frequently. If the +administrators at computing centers provide these files somewhere it +does not seem to be well advertised to users.

    +
  • +
  • +

    Pretty much every year my biggest victory with Spack is “they fixed the +thing that was biggest gripe about Spack last year,” which is a sign of +a really good job listening to users, so keep that up.

    +
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    Keep up the good work. I will continue using and supporting Spack for +many years to come.

    +
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    Keep being awesome! Spack is my favorite tool of the last 5 years!

    +
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    It’s easy to create a real tangle of versions and special builds. I +think the project should work to maintain good communication with the +application developers, so that standard or common/expected versions and +dependency sets can be more clearly identified

    +
  • +
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    Spack is extraordinary and blows away all past attempts to bring +sanity to HPC software. I encourage you to offer commercial support. +Please have support tiers that allow us to select an appropriate +level of support.

    +
  • +
]]>
Todd Gamblin
Spack featured on The Next Platform2020-11-12T00:02:00+00:002020-11-12T00:02:00+00:00https://spack.io/spack-featured-next-platformThe Next Platform provides in-depth coverage of high-end computing at large enterprises, supercomputing centers, hyperscale data centers, and public clouds. Against the backdrop of the Supercomputing (SC20) conference, the article titled “Spack Packs Deployment Boost for Top Supercomputers” describes the challenges of creating and deploying scientific software packages. Writer Nicole Hemsoth explains how Spack seeks to fill gaps in customization and configurability; that it is the deployment tool for Fukagu, the world’s top supercomputer; and, heading into the exascale era, how the Spack development team is handling the growing complexity of dependency issues for HPC software.

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Spack at SC202020-10-15T00:03:00+00:002020-10-15T00:03:00+00:00https://spack.io/spack-at-sc20Supercomputing 2020 (SC20) runs for two weeks beginning on November 9. +See below for a list of our events.

+ +

Be sure to follow +@spackpm on Twitter for updates!

+ +

Mon., November 9

+ +
    +
  • +

    10:00am - 2:00pm EST (live) +
    +Our tutorial runs over two half-days. Managing HPC Software Complexity with Spack: Part 1 +kicks off on Monday. Be sure to check out our tutorial documentation.

    + +

    The tutorial provides a thorough introduction to Spack’s capabilities: installing and authoring packages, +integrating Spack with development workflows, and using Spack for deployment at HPC facilities. +Attendees will leave with foundational skills for using Spack to automate day-to-day tasks, +along with deeper knowledge for applying Spack to advanced use cases.

    +
  • +
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Tue., November 10

+ + + +

Wed., November 18

+ +
    +
  • 11:30am - 12:45pm (live) +
    +Join the Spack Community BOF +and ask our developers anything. The core team will give updates on the community, new features, and +the roadmap for future development. We will poll the audience to gather valuable information on how Spack +is being used, and will open the floor for questions. All are invited to provide feedback, request features, +and discuss future directions. Help us make installing HPC software simple!
  • +
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Todd Gamblin
Spack R&amp;D 100 award featured in LLNL magazine2020-08-03T00:02:00+00:002020-08-03T00:02:00+00:00https://spack.io/spack-rd-100-award-featured-llnl-magazineThe July issue of Lawrence Livermore’s magazine Science & Technology Review features Spack as one of the Lab’s four winning technologies from 2019. The article titled “Software Installation Simplified” covers Spack’s origins, mechanisms, key features, and thriving open source community. The magazine issue also has a commentary by LLNL’s deputy director for science and technology, who describes the awards in the context of the Lab’s culture of innovation.

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Working remotely: the Spack team2020-05-16T00:02:00+00:002020-05-16T00:02:00+00:00https://spack.io/bssw-working-remotelyWith much of the tech sphere working from home right now, a Better Scientific Software blog post describes the Spack team’s experience working remotely. The Spack team has had to make some adjustments without being able to hold face-to-face tutorials and attend events in person, but there are a lot of online communication opportunities (e.g., Slack) to keep the community connected. A big difference-maker is having robust documentation so users can help themselves.

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Podcast: Let’s Talk Exascale2020-04-28T00:02:00+00:002020-04-28T00:02:00+00:00https://spack.io/ecp-podcast-episode-67The Exascale Computing Project’s Let’s Talk Exascale podcast has a new episode featuring Spack: “Flexible Package Manager Automates the Deployment of Software on Supercomputers”. Todd Gamblin describes Spack’s role in the ECP’s software stack, the Spack-related events at SC19, and the R&D 100 Award. The converation covers what it’s like to work with Spack’s open source community and the version 0.13 release (now updated to v0.14). Episode 67 runs 5:54 and includes a transcript.

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Spack contributor Greg Becker has many talents, not the least of which is scaling rock faces. LLNL Computing profiled this computer scientist in a piece titled “Greg Becker Scales Projects and Mountains.” Greg is a member of core the Spack development team – and easily reachable on Spack Slack (becker33) – who visits HPC centers and conducts user tutorials. In the profile, Greg talks about finding fulfilling work and how it relates to his passion for rock climbing.

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/index.html b/index.html new file mode 100644 index 00000000..da50b3c1 --- /dev/null +++ b/index.html @@ -0,0 +1,621 @@ + + + + + + + + Spack - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ + Spack + + +

+ +

A flexible package manager supporting multiple versions, configurations, platforms, and compilers. +

+ + + + + +

+ + GitHub + + @spackpm + + @spack + + Slack + + Docs + + Discussion + +

+ +
+ + + Photo: LLNL Sierra + + +
+ + + + + +
+ + + +
+ + + + +

Welcome to Spack!

+ +

Spack is a package manager for +supercomputers, Linux, and +macOS. It makes installing scientific software easy. Spack isn’t tied +to a particular language; you can build a software stack in +Python +or R, link to libraries written in C, C++, or Fortran, and easily swap +compilers +or target specific +microarchitectures. +Learn more here.

+ + + +

Recent posts

+ + + + +
+ + + + + +
+
+ +

+ + Announcing public binaries for Spack + + +

+ + + +

Spack was designed as a from-source package manager, but today users can stop +waiting for builds. Spack has been able to create binary build caches for sever...

+
+
+ + + + + + +
+
+ +

+ + Changes to bootstrapping in Spack v0.17 + + +

+ + + +

Starting with Spack v0.17, the new concretizer will be the default, and Spack will automatically +install a new dependency (Clingo) from binaries. You can opt...

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+ + Podcast: Spack on CppCast + + +

+ + + +

The CppCast podcast recently hosted Spack creator Todd Gamblin and core developer Greg Becker. They discuss a range of topics including an overview of the ex...

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+ + + + + + +
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+ + ECP annual meeting videos now available + + +

+ + + +

Spack is the software deployment tool of the Exascale Computing Project (ECP), a joint effort between the DOE Office of Science and NNSA that brings several ...

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+ + + + + + +
+
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+ + Spack User Survey 2020 + + +

+ + + +

Results from the Spack 2020 User Survey are out! Check out our summary below. +

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+
+ + + + + + +
+
+ +

+ + Spack featured on The Next Platform + + +

+ + + +

The Next Platform provides in-depth coverage of high-end computing at large enterprises, supercomputing centers, hyperscale data centers, and public clouds. ...

+
+
+ + + + + + +
+
+ +

+ + Spack at SC20 + + +

+ + + +

This year SC20 is fully virtual with events and sessions conducted over two weeks. Check out the Spack lineup below. +

+
+
+ + + + + + +
+ +
+ + + + + + +
+
+ +

+ + Working remotely: the Spack team + + +

+ + + +

With much of the tech sphere working from home right now, a Better Scientific Software blog post describes the Spack team’s experience working remotely. The ...

+
+
+ + + + + + +
+
+ +

+ + Podcast: Let’s Talk Exascale + + +

+ + + +

The Exascale Computing Project’s Let’s Talk Exascale podcast has a new episode featuring Spack: “Flexible Package Manager Automates the Deployment of Softwar...

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/links/index.html b/links/index.html new file mode 100644 index 00000000..207b1c4e --- /dev/null +++ b/links/index.html @@ -0,0 +1,309 @@ + + + + + + + +Links - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Coming soon: this will contain links to Spack-related reports, papers, +articles, etc.

+ +

For now, check out our page on Spack at SC20.

+ + +
+ +
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+ + + + +
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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/lrz-using-spack/index.html b/lrz-using-spack/index.html new file mode 100644 index 00000000..4f263c0f --- /dev/null +++ b/lrz-using-spack/index.html @@ -0,0 +1,524 @@ + + + + + + + +Into a new decade: using Spack at LRZ - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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At the start of the new decade, it is the right time to reflect on the +use of Spack at the +Leibniz Supercomputing Centre (LRZ). We’d like to +take a look at the current developments and pull out the crystal ball for +a glimpse into the (near) future.

+ +

The story of LRZ using Spack goes back to early 2018. With the then +forthcoming procurement of +SuperMUC-NG, currently +Germany’s fastest supercomputer, a small team of HPC software application +support staff set out to optimize software installations on the LRZ +clusters. On the predecessor systems, each software package had been +installed and managed individually. Over the years, this software stack +had grown enormously and become so large, that a continuation of this +practice was no longer feasible. Spack promised both: a consistent and +flexible framework for installing and maintaining software. And Spack +delivered, so porting the LRZ stack to Spack began.

+ +

In the second half of 2018, a beta release of this software stack was put +into operation on the Linux Cluster, a heterogeneous cluster system +serving the Munich +universities and researchers all over Bavaria. At +the same time, the deployment phase for SuperMUC-NG continued and when +early user operations began, the primary software stack was Spack-based, +providing more than 220 software modules to users. Since then, another +internal release at the end of 2019 delivered updated libraries and +applications to users.

+ +
Members of the LRZ Spack team in front of SuperMUC-NG and pointing
+at a Spack sticker placed on the rack front.
+ The LRZ Spack team +in front of SuperMUC-NG. Yes, we did put a sticker on the machine. + +
+ +

Now, as the +predecessor system +has reached its end of life and was switched off at the turn of the year, +the software installations on all high performance cluster systems +currently operated at LRZ are managed by Spack.

+ +

While continuously integrating more packages into Spack (notable pending +exceptions are some core components like certain compilers and MPI +libraries), the new year’s resolution of the team is to move to the +latest upstream version of Spack. This will introduce anticipated new +features like chaining with the expressed goal of having users configure +and install their own software, individually, while building upon the +common software stack provided by LRZ. Also, with further refined +environments and stacks as well as microarchitecture-targeting, it will +be possible to replace substantial internal configuration and code +customizations.

+ +

The team is looking forward to continuing to work alongside the very active +Spack community, contributing to upstream development and user support +while putting the fun back in supercomputer software installation and +maintenance with Spack!

+ +

Make sure to follow @lrz_de on Twitter for +the latest updates on supercomputing for students and researchers in +Munich, Bavaria, Germany and beyond.

+ +

– Johannes Albert-von der Gönna and the LRZ Spack team, Leibniz Supercomputing Centre

+ + +
+ +
+ + + + + + + +

+ Tags: + + + , + + , + + , + + + + +

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Updated:

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/page2/index.html b/page2/index.html new file mode 100644 index 00000000..ea3d3b05 --- /dev/null +++ b/page2/index.html @@ -0,0 +1,615 @@ + + + + + + + + Spack - Spack - Page 2 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+
+
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+ + +
+ + + + + + + + + +
+ +
+

+ + Spack + + +

+ +

A flexible package manager supporting multiple versions, configurations, platforms, and compilers. +

+ + + + + +

+ + GitHub + + @spackpm + + @spack + + Slack + + Docs + + Discussion + +

+ +
+ + + Photo: LLNL Sierra + + +
+ + + + + +
+ + + +
+ + + + +

Welcome to Spack!

+ +

Spack is a package manager for +supercomputers, Linux, and +macOS. It makes installing scientific software easy. Spack isn’t tied +to a particular language; you can build a software stack in +Python +or R, link to libraries written in C, C++, or Fortran, and easily swap +compilers +or target specific +microarchitectures. +Learn more here.

+ + + +

Recent posts

+ + + + +
+ + + + + +
+
+ +

+ + Profile of Greg Becker + + +

+ + + +

Spack contributor Greg Becker has many talents, not the least of which is scaling rock faces. LLNL Computing profiled this computer scientist in a piece titl...

+
+
+ + + + + + +
+
+ +

+ + Into a new decade: using Spack at LRZ + + +

+ + + +

An account of how Spack is used on the HPC systems of the +Leibniz Supercomputing Centre (LRZ): origins, ongoing development and +outlook on the future. +

+
+
+ + + + + + +
+
+ +

+ + Exascale watch: El Capitan + + +

+ + + +

HPC centers are always prepping for the next big thing. LLNL’s El Capitan supercomputer, coming online in 2023, will help usher in the exascale era with its ...

+
+
+ + + + + + +
+
+ +

+ + Spack at ECP annual meeting + + +

+ + + +

We’re thrilled to be part of the Exascale Computing Project (ECP), a joint effort between the DOE Office of Science and NNSA that brings several together nat...

+
+
+ + + + + + +
+
+ +

+ + Video: Spack at FOSDEM ‘20 + + +

+ + + +

FOSDEM promotes the widespread use of free and open source software. The 2020 conference took place in Brussels, Belgium, on February 1–2. The FOSDEM website...

+
+
+ + + + + + +
+
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+ + Spack on Microsoft Azure VMs + + +

+ + + +

Another HPC cloud use case! A Microsoft Tech Community blog post describes the steps for using Spack to build and install packages on the Azure cloud for HPC...

+
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+ + + + + + +
+
+ +

+ + Spack wins R&D 100 award + + +

+ + + +

The trade journal R&D World Magazine announced the winners of its annual awards on October 31. And Spack is one of the winners! The competition recognize...

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+ + Spack wins FLC award + + +

+ + + +

We’re excited to announce that Spack received a regional technology transfer award from the Federal Laboratory Consortium (FLC). The FLC has been around sinc...

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+ + Spack at SC19 + + +

+ + + +

SC19 kicks off this week in Denver, and there are Spack events every day. Make sure they’re all on your calendar with the list below. +

+
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+ + + + + + +
+
+ +

+ + Spack has a new website + + +

+ + + +

+Until now, spack.io has mostly been a landing page – an easy-to-remember +URL with a brief description of Spack and links out to other, more +important projec...

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/page3/index.html b/page3/index.html new file mode 100644 index 00000000..8b47031a --- /dev/null +++ b/page3/index.html @@ -0,0 +1,420 @@ + + + + + + + + Spack - Spack - Page 3 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ + + + + + + + + +
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+ + Spack + + +

+ +

A flexible package manager supporting multiple versions, configurations, platforms, and compilers. +

+ + + + + +

+ + GitHub + + @spackpm + + @spack + + Slack + + Docs + + Discussion + +

+ +
+ + + Photo: LLNL Sierra + + +
+ + + + + +
+ + + +
+ + + + +

Welcome to Spack!

+ +

Spack is a package manager for +supercomputers, Linux, and +macOS. It makes installing scientific software easy. Spack isn’t tied +to a particular language; you can build a software stack in +Python +or R, link to libraries written in C, C++, or Fortran, and easily swap +compilers +or target specific +microarchitectures. +Learn more here.

+ + + +

Recent posts

+ + + + +
+ + + + + +
+
+ +

+ + Spack on AWS cluster + + +

+ + + +

Deploying an HPC cluster on Amazon Web Services might sound daunting, but it’s possible with Spack. Harvard’s Jiawei Zhuang has written a guide for standing ...

+
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+ + +
+ + + + + + + + + + + +
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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/robots.txt b/robots.txt new file mode 100644 index 00000000..6e31b1a6 --- /dev/null +++ b/robots.txt @@ -0,0 +1 @@ +Sitemap: https://spack.io/sitemap.xml diff --git a/services/index.html b/services/index.html new file mode 100644 index 00000000..5a84fd7b --- /dev/null +++ b/services/index.html @@ -0,0 +1,331 @@ + + + + + + + +Spack Services - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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We’re thrilled to be part of the Exascale Computing Project (ECP), a joint effort between the DOE Office of Science and NNSA that brings several together national labs. These combined forces tackle the hardware, software, and application challenges inherent in the DOE/NNSA’s scientific and national security missions. Spack is the ECP’s standard software deployment tool.

+ +

The ECP’s annual meeting on February 3-7 included two Spack sessions led by Todd Gamblin and Greg Becker:

+ +
    +
  • Spack roundtable where participants learned about recent and upcoming developments, networked with other HPC sites and developers using Spack, discussed feedback to guide future directions, and generally bolstered the (growing!) Spack community within the ECP.
  • +
  • Spack tutorial that introduced attendees to Spack, teaching them how to automatically build and install over 3,300 packages, develop their own packages, and contribute packages to Spack for others to use.
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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-at-fosdem/index.html b/spack-at-fosdem/index.html new file mode 100644 index 00000000..ac36f9d3 --- /dev/null +++ b/spack-at-fosdem/index.html @@ -0,0 +1,442 @@ + + + + + + + +Video: Spack at FOSDEM ‘20 - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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FOSDEM promotes the widespread use of free and open source software. The 2020 conference took place in Brussels, Belgium, on February 1–2. The FOSDEM website is chock full of videos of speakers, lightning talks, and other sessions. Todd Gamblin led two Spack sessions:

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+ + Spack at SC19 + + +

+ +

SC19 kicks off this week in Denver, and there are Spack events every day. Make sure they’re all on your calendar with the list below. +

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Supercomputing 2019 (SC19) kicks off +this week in Denver, and the Spack team will be busy with a +tutorial, +several BOFs, two meet-the-developers sessions at the DOE booth, and even +some papers! See below for a list of events by us and our collaborators.

+ +

Be sure to follow +@spackpm on Twitter for updates!

+ +

Sun., November 17

+ + + +

Mon., November 18

+ + + +

Tues., November 19

+ +
    +
  • 12:15pm - 1:15pm, in 405-406-407 +
    +The first +Extreme-Scale Scientific Software Stack (E4S) BOF +will talk about E4S, a community effort to provide +open source software packages for developing, deploying and running +scientific applications on high-performance computing (HPC) platforms. +E4S is part of the U.S. +Exascale Computing Project, and it +uses Spack to deploy all of its software.
  • +
+ +

Wed., November 20

+ +
    +
  • +

    10:00am - 11:00am, at DOE Booth 925 +
    +Ask the Spack developers anything at the first of two roundtables +at the DOE Booth. Core +developers will be available to discuss roadmap directions, issues, +collaborations, or anything else Spack-related.

    +
  • +
  • +

    12:15pm - 1:15pm, in 405-406-407 +
    +Spack will be part of a panel on +best practices at the +Getting Scientific Software Installed BOF, +along with Easybuild, Lmod, Singularity, and potentially others. Open +discussion will be followed with an interactive survey.

    +
  • +
+ +

Thurs., November 21

+ +
    +
  • +

    12:15pm - 1:15pm, in 503-504
    The second +Spack Community BOF +at SC, will feature a brief presentation by core developers on the +latest Spack release and roadmap directions, followed by an interactive +survey.

    +
  • +
  • +

    2:30pm - 3:30pm, at DOE Booth 925 +
    +Ask the Spack +developers anything at the +DOE Booth. Once again, +core developers will be available to discuss roadmap directions, +issues, collaborations, or anything else Spack-related.

    +
  • +
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Fri., November 22

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-at-sc20/index.html b/spack-at-sc20/index.html new file mode 100644 index 00000000..f44014ca --- /dev/null +++ b/spack-at-sc20/index.html @@ -0,0 +1,430 @@ + + + + + + + +Spack at SC20 - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ + Spack at SC20 + + +

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This year SC20 is fully virtual with events and sessions conducted over two weeks. Check out the Spack lineup below. +

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Supercomputing 2020 (SC20) runs for two weeks beginning on November 9. +See below for a list of our events.

+ +

Be sure to follow +@spackpm on Twitter for updates!

+ +

Mon., November 9

+ +
    +
  • +

    10:00am - 2:00pm EST (live) +
    +Our tutorial runs over two half-days. Managing HPC Software Complexity with Spack: Part 1 +kicks off on Monday. Be sure to check out our tutorial documentation.

    + +

    The tutorial provides a thorough introduction to Spack’s capabilities: installing and authoring packages, +integrating Spack with development workflows, and using Spack for deployment at HPC facilities. +Attendees will leave with foundational skills for using Spack to automate day-to-day tasks, +along with deeper knowledge for applying Spack to advanced use cases.

    +
  • +
+ +

Tue., November 10

+ + + +

Wed., November 18

+ +
    +
  • 11:30am - 12:45pm (live) +
    +Join the Spack Community BOF +and ask our developers anything. The core team will give updates on the community, new features, and +the roadmap for future development. We will poll the audience to gather valuable information on how Spack +is being used, and will open the floor for questions. All are invited to provide feedback, request features, +and discuss future directions. Help us make installing HPC software simple!
  • +
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+ Tags: + + + , + + , + + , + + + + +

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-aws-cluster/index.html b/spack-aws-cluster/index.html new file mode 100644 index 00000000..4e7295fb --- /dev/null +++ b/spack-aws-cluster/index.html @@ -0,0 +1,434 @@ + + + + + + + +Spack on AWS cluster - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Deploying an HPC cluster on Amazon Web Services might sound daunting, but it’s possible with Spack. Harvard’s Jiawei Zhuang has written a guide for standing up a cloud-HPC cluster using AWS ParallelCluster, Slurm, and Spack. The guide provides an easy-to-follow workflow using the Weather Research and Forecasting model as an example.

+ +

Zhuang and the GEOS-Chem team at Harvard made a reproducible cloud simulation using Spack. Check out their paper, “Enabling high-performance cloud computing for Earth science modeling on over a thousand cores: application to the GEOS-Chem atmospheric chemistry model,” which describes using Spack to build caches.

+ + +
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+ Tags: + + + , + + + + +

+ + + + + + +

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-binary-packages/index.html b/spack-binary-packages/index.html new file mode 100644 index 00000000..5f39480d --- /dev/null +++ b/spack-binary-packages/index.html @@ -0,0 +1,670 @@ + + + + + + + +Announcing public binaries for Spack - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Spack was designed as a from-source package manager, but today users can stop waiting +for builds. Spack has been able to create binary build caches for several years, but +the onus of building the binaries has been on users: application teams, deployment teams +at HPC facilities, etc.

+ +

Today, enabled by some of the changes in +Spack v0.18, and helped by the +folks at AWS, Kitware, and the +E4S Project we’re starting down the path towards building binaries for +everything in Spack. Right now, we’ve got binaries for the following OS’s/architectures:

+ + + + + + + + + + + + + + + + + + + + + + + + + + +
OSTarget
amzn2 (Amazon Linux 2)graviton2
amzn2aarch64
amzn2x86_64_v4
ubuntu18.04x86_64
+ +

You can also browse the contents of these caches at +cache.spack.io.

+ +

If you already know what you’re doing, here’s what you need to try out the 0.18 binary +release:

+ +
spack mirror add binary_mirror  https://binaries.spack.io/releases/v0.18
+spack buildcache keys --install --trust
+
+ +

If you aren’t familiar with Spack binaries, we’ve got instructions for using these +binaries on graviton2 nodes below. Note that you do not need to have the Spack +v0.18 release checked out; you can use this cache from the latest develop branch, +too.

+ +

What’s different about Spack binaries?

+ +

Binary packaging isn’t new, and .rpm and .deb-based distributions have been around +for years, and conda is very popular in the Python world. In those distributions, +there is typically a 1:1 relationship between binary package specs and binaries, and +there’s a single, portable stack that’s maintained over time.

+ +

Traditionally, HPC users have avoided these types of systems, as they’re not built for +the specific machine we want to run on, and it’s hard to generarte binaries for all +the different types of machines we want to support. GPUs and specific microarchitectures +(e.g., skylake, cascadelake, etc.) complicate matters further.

+ +

image

+ +

Spack binaries are more like those used by Nix or Guix – they are caches of builds, +not specially prepared binaries, and installing a package from binary results in +essentially the same type of installation as building it from source. For determinism, +Packages are deployed with the dependencies they built with. One difference with Spack +is that we store considerably more metadata with our builds – the compiler, +microarchitecture target (using archspec), +flags, build options, and other metadata. We can use a single package to build all these +targets, and we can generate many optimized binaries from a single package +description. Here’s what that looks like:

+ +

image

+ +

With Spack, we’re trying to leverage our portable package DSL not only for portable +builds, but for optimized binaries as well. We can generate many optimized binaries +from the same package files and targets, and we can maintain many portable software +stacks using the same package descriptions. This reduces the burden on maintainers, as +we do not need to support many thousands of recipes – only as many recipes as we have +packages. And it is easy to assemble new software stacks on the fly using Spack +environments. Spack binaries are also relocatable so you can easily install them in +your home directory on your favorite HPC machine, without asking an admin for help.

+ +

CI for Rolling releases

+ +

image

+ +

To support combinatorial binaries, we are trying to push as much work upstream as +possible. We don’t want to have to spend a week preparing a new release, so we’ve built +cloud automation around these builds. For every PR to Spack, we rebuild the stacks we +support, and we allow contributors to iterate on their binary builds in the PR. We +test the builds on different architectures and different sites, and if all builds +changed or introduced by the PR pass, we mark the PR ready for merge. This allows us to +rely on the largest possible group of package maintainers to ensure that our builds keep +working all the time.

+ +

One issue with this approach is that we can’t trust builds done in pull requests. We +need to know if the PR builds work, but we may not know all contributors, and we +cannot trust things built before our core maintainers approve PRs. We’ve solved this by +bifurcating the build.

+ +

image

+ +

Every PR gets its own binary cache, and contributors can iterate on builds before any +maintianer has a chance to look at their work (though we do obviously have to approve CI +for first-time contributors). Contributors can work in parallel on their own stacks, and +per-PR build caches enable them to work quickly, rebuilding only chnanged packages.

+ +

Once a maintainer looks at the PR and approves, we rebuild any new binaries introduced +in a more trusted environment. This environment does not reuse any binary data from +the PR environment, which makes us sure that bad things from an earlier PR commit won’t +slip in through binaries. We do rebuilds for develop and release branches, and we +sign in a separate environment from the build so that signing keys are never exposed to +build system code. Finished, signed rebuilds are placed in a rolling develop binary +cache or in a per-release binary cache. You can find the public keys for the release at +spack.github.io/keys

+ +

Expanding the cache

+ +

This is only the tip of the iceberg. We are currently running 40,000 builds per week in +Amazon AWS to maintain our binaries, with help from the E4S project to keep them +working. Kitware is ensuring that our cloud build infrastructure can scale. You can see +stats from the build farm at stats.e4s.io.

+ +

We will be expanding to thousands more in the near future. Our goal is to eventually +cover all Spack packages, and to make source builds unnecessary for most users and +eliminate the long wait times between deciding on a simulation to run and your ability +to start a scientific simulation. Expect more compilers, more optimized builds, and more +pacakges.

+ +

Spack aims to lower the burden of maintaining a binary distribution and make it easy to +mix source builds with binaries. Packages available in the binary mirror will install +from binaries, and Spack will seamlessly transition to source builds for any packages +that are not available. Users will see approximately 20X installation speedups for +binary packages, and performance improvements for binary packaging are in the works.

+ +

Running Spack binaries in the cloud

+ +

On a brand new amazon-linux image, you can have optimized HPC applications installed +in only 7 commands. (If you already run Spack, it’s only 3 additional commands). You can +do this on a ParallelCluster instance if +you want to run these codes in parallel.

+ +

Let’s say you want to install gromacs.

+ +

First we need to get Spack installed. Spack has a couple low-level dependencies it needs +to be able to do anything, including a C/C++ compiler. Those aren’t on your image by +default, so you will need to install them with yum. sudo yum install -y git gcc +gcc-c++ gcc-gfortran

+ +

Now you can clone Spack from github and check out the latest release. Spack will +bootstrap the rest of what it needs to install the binary packages. You’ll also want to +setup the Spack shell integration so Spack is in your path and all its features are +available git clone https://github.com/spack/spack.git cd spack git checkout v0.18.0 +. share/spack/setup-env.sh

+ +

Now you can configure Spack to use the pre-built binary caches. You can either point it +to develop or releases/v0.18.0

+ +
spack mirror add binary_mirror  https://binaries.spack.io/develop
+spack buildcache keys --install --trust
+
+ +

You can compare the public key that Spack downloads against the ones available at +https://spack.github.io/keys/ for an alternate source of truth to validate source of the +binaries.

+ +

Now you can download optimized HPC application binaries

+ +
spack install gromacs
+
+ +

Spack will install from binaries for any package spec that is available, and will +aggressively reuse binaries for dependencies. You can see what’s available with Spack

+ +
spack buildcache list --allarch
+
+ +

Anything that’s not available will still reuse the available packages for dependencies, +and will seamlessly fail over to building from source for any components for which +binaries are not available.

+ +

10 minutes in and your application is already available, now you can go on to do the +science you set out to do.

+ + +
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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-featured-next-platform/index.html b/spack-featured-next-platform/index.html new file mode 100644 index 00000000..3e810090 --- /dev/null +++ b/spack-featured-next-platform/index.html @@ -0,0 +1,431 @@ + + + + + + + +Spack featured on The Next Platform - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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The Next Platform provides in-depth coverage of high-end computing at large enterprises, supercomputing centers, hyperscale data centers, and public clouds. Against the backdrop of the Supercomputing (SC20) conference, the article titled “Spack Packs Deployment Boost for Top Supercomputers” describes the challenges of creating and deploying scientific software packages. Writer Nicole Hemsoth explains how Spack seeks to fill gaps in customization and configurability; that it is the deployment tool for Fukagu, the world’s top supercomputer; and, heading into the exascale era, how the Spack development team is handling the growing complexity of dependency issues for HPC software.

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+ Tags: + + + + + +

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Updated:

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+Until now, spack.io has mostly been a landing page – an easy-to-remember +URL with a brief description of Spack and links out to other, more +important project pages. The old spack.io was great as a splash page, +but its single-page layout was a bit cramped for all the stuff going on +in the world of Spack. We’re developing new features and new +collaborations rapidly, and we’d like to be able to highlight important +news with blog articles and links.

+ +

Today, spack.io has a new look. We’re using the +Minimal Mistakes theme +to give ourselves a bit more room. The new layout has multiple pages, +and we’re adding a blog, an event list, and a +links page. We’ll be populating these with articles and +interesting links. You can still find the highlights from the old +page under About.

+ +

For +our first feature, we’ve compiled a list of +events at SC19. There are +tutorials, BOFs, meetups with the Spack developers, and more. Check it +out, and we hope to see you at the conference!

+ + +
+ +
+ + + + + + + +

+ Tags: + + + , + + + + +

+ + + + + + +

Updated:

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-on-microsoft-azure-vms/index.html b/spack-on-microsoft-azure-vms/index.html new file mode 100644 index 00000000..6df5bc67 --- /dev/null +++ b/spack-on-microsoft-azure-vms/index.html @@ -0,0 +1,435 @@ + + + + + + + +Spack on Microsoft Azure VMs - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Another HPC cloud use case! A Microsoft Tech Community blog post describes the steps for using Spack to build and install packages on the Azure cloud for HPC workloads. There’s a repo you can fork to try it yourself: azurehpc contains scripts to automatically install Spack on Azure VMs, set up suitable configuration files, and integrate the CentOS-HPC 7.7 MPI libraries.

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+ Tags: + + + , + + , + + + + +

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Updated:

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-rd-100-award-featured-llnl-magazine/index.html b/spack-rd-100-award-featured-llnl-magazine/index.html new file mode 100644 index 00000000..b7a6ed86 --- /dev/null +++ b/spack-rd-100-award-featured-llnl-magazine/index.html @@ -0,0 +1,433 @@ + + + + + + + +Spack R&D 100 award featured in LLNL magazine - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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The July issue of Lawrence Livermore’s magazine Science & Technology Review features Spack as one of the Lab’s four winning technologies from 2019. The article titled “Software Installation Simplified” covers Spack’s origins, mechanisms, key features, and thriving open source community. The magazine issue also has a commentary by LLNL’s deputy director for science and technology, who describes the awards in the context of the Lab’s culture of innovation.

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+ Tags: + + + , + + + + +

+ + + + + + +

Updated:

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-user-survey-2020/index.html b/spack-user-survey-2020/index.html new file mode 100644 index 00000000..777a0702 --- /dev/null +++ b/spack-user-survey-2020/index.html @@ -0,0 +1,1474 @@ + + + + + + + +Spack User Survey 2020 - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ + Spack User Survey 2020 + + +

+ +

Results from the Spack 2020 User Survey are out! Check out our summary below. +

+ + + + + +
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+ + +
+ + + +

Introduction

+ +

Spack has been around for a while, and we’ve always felt like we have a +pretty good sense of the community through channels like GitHub, Slack, +and our Google group. However, the project is getting larger, and we +wanted to better understand the community’s needs with more structured +feedback. Spack is funded by the NNSA +ASC Program +and the U.S. +Exascale Computing Project (ECP), and we +wanted to understand the different needs of ASC, ECP, and other types of +users.

+ +

So, this year, we ran our first ever Spack user survey. Read on to see +the results.

+ +

About the survey

+ +

The survey has 26 multiple-choice questions and 6 longer-form questions. +It was open from September 28 to October 9, and there were 169 +respondents. We advertised to the broadest audiences we knew how to +reach. Specifically, we advertised the survey through:

+ +
    +
  • Our Google group (402 members);
  • +
  • Slack (~900 members);
  • +
  • Twitter (~1,100 followers);
  • +
  • the ECP-wide mailing list (ECP is ~1,000 people); and
  • +
  • the El Capitan Center of Excellence (COE) mailing list.
  • +
+ +

There’s probably a lot of overlap between these lists, so this may not be +as wide an audience as it would seem. It’s probably biased towards U.S. +users, as the people on the mailing lists are very U.S.-centric. So, +while the sample is by no means scientific, we know at least that it +covers a lot of Spack users.

+ +

Data

+ +

The results are summarized here, but you can get the full data set and +the scripts we used to generate these charts +here. There are a lot of +results – let us know if you find anything interesting that we missed.

+ +

Thanks!

+ +

Thanks to the 169 users who filled out the survey, both for this feedback +and for your continuing contributions to Spack! This project wouldn’t be +possible without the community!

+ +

Demographics

+ +

In this section of the survey, we tried to understand the composition of +the Spack community.

+ +

ECP and Spack

+ +

The first question we asked was whether respondents were part of ECP.

+ +
+ + + +
+ +

ECP represents just over a third of the community (~35%, or 61 of 169 +respondents). It includes people from both sides of the U.S. Department +of Energy – NNSA laboratories like +LLNL, LANL, and +Sandia; and +Office of Science, laboratories like +ANL, ORNL, +LBL, PNNL, +BNL, and others. Under ECP, the Spack team is +focusing on delivering a software stack for the first U.S. exascale +machines, which includes upcoming systems like:

+ +
    +
  • LBL’s Perlmutter: AMD CPU / +NVIDIA GPU (pre-exascale)
  • +
  • ANL’s Aurora: Intel CPU / Intel GPU
  • +
  • ORNL’s Frontier: AMD CPU / AMD GPU
  • +
  • LLNL’s El Capitan: AMD CPU / AMD GPU
  • +
+ +

All of these are HPE/Cray systems, but the hardware is quite diverse +(particularly the GPUs). We wanted to see whether the users at the +bleeding edge of HPC had significantly different needs from the Spack +community as a whole. So, in most of the following sections, we present +responses for Spack and for ECP separately.

+ +

What kind of user are you?

+ +

We asked users what their role was at their organization.

+ +
+ + + +
+ +

Spack was originally targeted at user support teams and system +administrators, but by far the largest parts of the community are end +users (scientists/researchers) installing software on HPC machines (35%) +and software developers (41%). System administrators were ~11% of the +overall community, and user support staff were only 8%. In ECP, this is +even more pronounced – only a small fraction of respondents identified +as system administrators, and developers were nearly 43% of the ECP user +base.

+ +

Part of the absence of sysadmins may be that at DOE labs, administrators +don’t typically handle installation of user software – that’s left to +dedicated support teams who engage with users. Admins (at least in DOE) +tend to focus on keeping the machines running and managing the host OS +underneath Spack.

+ +

If you compare this to +EasyBuild’s latest survey +(slide 13), you’ll see that the composition of the communities is very +different. In EasyBuild’s similar survey, only 3% of the respondents +identified as developers, and only 9% were scientists. User support and +admins were 26% and 53% of the EasyBuild user base, respectively.

+ +

Where do you work?

+ +

We next asked users where they work.

+ +
+ + + +
+ +

The community as a whole is diverse. Slightly less than a third (31%) are +from Universities. 37.6% are from DOE NNSA and Office of Science +laboratories (more than all of ECP – so parts of DOE not in ECP are +included). Other public research labs make up 18% of Spack users, and +~13% are from private companies and cloud providers. Within ECP, a large +majority of users (76%) were from DOE labs, but there was still some +participation from public labs and universities.

+ +

Comparing again with +EasyBuild’s survey +(slide 13), we can see that EasyBuild has a much smaller percentage of +users from national computing centers (13% vs. 37%), and a larger +percentage of users from universities (55%). It is hard to tell exactly +how the proportions compare, as EasyBuild’s survey provided a “university +research group” option, while in our survey that is likely spread across +the “University HPC center” and “public research lab” categories.

+ +

What country are you in?

+ +
+ + + +
+ +

Just under 2/3 of Spack users are in the United States, and nearly +exactly 2/3 are from North America when our two Canadian respondents are +included. 27% are from Europe, 5% from Asia, and there was one respondent +each from the Middle East (Saudi Arabia) and South America (Argentina). +Within ECP (which is a U.S. DOE project), the proportion is much higher +– nearly 97% are from the U.S.

+ +

What are your primary application areas?

+ +
+ + + +
+ +

These results are mostly as we expected – most Spack users (~80%) are +doing traditional HPC and simulation. In the broader community around 30% +are doing computer science research, but within ECP around 50% are doing +CS research. In ECP, AI and bioinformatics were noticeably less emphasized +than in the broader Spack community. Interestingly, compiler testing was +the 7th most popular application area outside ECP, but the 4th most +popular inside ECP. Only one user reported using Spack for web +applications.

+ +

How did you find out about Spack?

+ +
+ + + +
+ +

Both in and outside ECP, about half of Spack users hear about the tool +via word of mouth. This result made us pretty happy – we think it means +that users are very willing to recommend Spack to friends. After word of +mouth, 22% people heard of Spack because it was used at their site. +Within ECP this was slightly more likely at 30%.

+ +

24% of users heard about Spack from outreach activities: tutorials, BOF +sessions, and presentations.

+ +

How long have you been using Spack?

+ +
+ + + +
+ +

Spack usage has been growing over time, and the number of users who join +the community each year is increasing. Most of the overall community has +been using Spack for less than two years. We also see this effect in the +number of contributors to the project on GitHub. In 2018, after the +project had been publicly available for 4 years, there were around 300 +contributors. 2 years later, there are nearly 700.

+ +

Within ECP, the community is older – most people started using Spack in +ECP 2-3 years ago. There has been less new adoption since then, which we +attribute to Spack’s rapid adoption in ECP. Spack caught on quickly +there, people have continued to use it, and there is not a large influx +of users into ECP. The population stays mostly the same over time.

+ +

Have you contributed to Spack?

+ +
+ + + +
+ +

Around 75% of users who responded have contributed to Spack in some way +or another, and most of those (60%) have contributed a package. Nearly +40% of users are active on Slack, and nearly 40% have filed issues on +GitHub.

+ +

It’s notable that Slack discussions are far more active than the Spack +mailing list – users seem to want to engage live rather than sending +emails back and forth.

+ +

Not many users (~10%) have contributed to documentation, but even this +small amount helps the project – this is around 16 people.

+ +

There don’t seem to be any special takeaways here for ECP, except that +ECP users seem to be slightly more likely to contribute a package (nearly +70% have done so).

+ +

Spack Usage

+ +

Having characterized the user base, we moved on to finding out how they +use Spack.

+ +

What version(s) of Spack do you use?

+ +
+ + + +
+ +

Spack users like to be on the bleeding edge, and it shows up the versions +of Spack they use. Just under 60% of users are using the develop branch +of Spack, and the number is higher (~65%) in ECP. The next most popular +version was 0.15, which was the latest Spack release at the time +of this survey.

+ +

Comparatively few users were on older versions, though a very small +number of people were using 0.10. A lot has happened since then – 0.10 +was released in January 2017, and there were around 1,000 packages then +(vs. 5,000 now). We hope the users still on 0.10 will upgrade – both for +features and for package fixes.

+ +

What OS do you use Spack on?

+ +
+ + + + + + +
+ OS's of Spack users ignoring (left) and considering (right) specific Linux + distributions. +
+
+ +

Spack is targeted at HPC, so it’s no surprise that nearly 100% of users +are using it on Linux. What users sometimes +forget is +that Spack also works on macOS. Around 35% of all users run Spack on +their macs, and over half the users within ECP are also running it on +macOS. A small number of users (<10%) are running Spack within the +Windows Subsystem for Linux. We don’t test there, but we’re told that +Spack works fine in the WSL environment.

+ +

If we look at the responses in more detail, we can see the specific Linux +distributions that users are running. The most popular, by far, are +CentOS and Red Hat. In ECP, Red Hat is especially popular. Ubuntu is the +next most popular after these, then macOS, then other Linux distributions +and WSL. SuSE is more popular within ECP than in the broader community, +likely because it is the Linux distribution that most Cray systems are +built on.

+ +

How many software installations have you done with Spack in the past year?

+ +
+ + + +
+ +

Almost 28% of the community has done over 200 software installations, and +over 12% have done over 1,000 installs. The ECP numbers are similar to +the general population, but the distribution is slightly shifted towards +larger numbers of installations.

+ +

What Python version(s) do you use to run Spack?

+ +
+ + + +
+ +

Support for Python 2 ended January 1, 2020, but nearly a year later, +around 40% of Spack users are still using Python 2.7. 4 users are even +using Python 2.6. Python 2.7 is still the system Python version on many +operating systems, including Red Hat 7 and CentOS 7, and on Red Hat and +CentOS 6 (which are still used at some sites) the default is 2.6.

+ +

While many projects can pick their version of Python, Spack is often the +tool people use to install newer versions of Python, and we don’t want +to make users use another installer just to install Spack’s dependencies. +We want it to work out of the box, so we try to make Spack work with the +system Python everywhere.

+ +

How bad would it be if Spack dropped support for Python 2.6?

+ +
+ + + +
+ +

We asked whether it would be OK for us to drop Python 2.6, and we found +that there are still around 4 hold-outs who really need Spack to work on +Python 2.6, and over 20% of people would be at least mildly +inconvenienced by this change. For the time being, we’ll keep supporting +Python 2.6, but you can probably expect its deprecation to be announced +sometime within the next year, as the last few Red Hat 6 installations +dwindle.

+ +

How bad would it be if Spack only worked with Python 3?

+ +
+ + + +
+ +

Eventually, we’d like to drop Python 2 entirely, but with 40% of users +still using 2.7, and with 36% of users likely to be bothered by the +shift, we’ll hold off on dropping 2.7, as well. Interestingly, while ECP +users were less likely than the broader community to completely oppose +dropping 2.6, they were more likely than the community to oppose +dropping 2.7.

+ +

How do you get installed Spack packages into your environment?

+ +
+ + + +
+ +

The most common way to use Spack packages is still through modules, and +module usage seems to be split about evenly between Lmod and TCL modules, +with some overlap. We were surprised to see that the spack load command +is the second most popular way to use Spack packages, only a few +percentage points behind modules.

+ +

We don’t have data on past usage of spack load, but we’ve tried to make +it easy to use everywhere, and this may have caused its usage to +increase. In particular, in earlier Spack releases, spack load +required modules in order to work (it was a thin layer around module +load). As of +Spack 0.14 in +early 2020, it only requires Spack’s own environment support – so you +can easily load a one-off package on your mac or personal Linux box where +you don’t already have modules installed.

+ +

After spack load, around 35% of users are making use of Spack +environments to load groups of packages together. Like spack load, +Spack environments require no support from the module system – they work +regardless of where Spack is deployed and provide a more portable +alternative to loading environment modules.

+ +

Which Spack features do you use?

+ +
+ + + +
+ +

While Spack +environments +ranked below modules for simply getting packages into PATH, +environments are actually the most widely used single feature of Spack +(at least on our list here). Around 2/3 of users say they use +environments. environments can be used to add packages to PATH, to +maintain a list of dependencies via spack.yaml, to version a +spack.yaml environment in a repo, to do +combinatorial builds, +to reproduce builds with spack.lock, to configure and run +CI pipelines, +and to +build container images.

+ +

Looking Ahead

+ +

We wanted to get a sense of what users will need from Spack in the coming +year, so we asked about upcoming architectures, Spack features, and +events.

+ +

Which CPUs do you expect to use with Spack in the next year?

+ +
+ + + +
+ +

Nearly everyone in the Spack community plans to run on Intel CPUs in the +next year, and around 80% expect to use Spack to build for AMD systems. +Just over 40% of users will run on ARM and just under 40% will run on +Power. Within ECP, the percentage of users that want to run on any of the +non-Intel CPUs is larger – as you might expect, ECP is targeting a more +diverse set of architectures. There were many more ECP users who expected +to run on Power than in the broader community, likely because the current +top two U.S. systems, Summit and Sierra, are Power machines.

+ +

We can’t draw a fair comparison with EasyBuild on this question, as +EasyBuild’s survey asked users what CPUs they were currently using +rather than what they expected to be using in the next year, and their +survey was done a year ago, and things are changing fast in HPC. So, take +it with a grain of salt, but the difference is still worth mentioning. In +the +EasyBuild survey +(slide 26), the vast majority of users were similarly running on Intel +machines. But, less than 20% were using AMD chips, less than 5% were +using Power, and only one user reported using ARM. It’s likely their +numbers for AMD and ARM will increase on the next survey.

+ +

Which GPUs do you expect to use with Spack in the next year?

+ +
+ + + +
+ +

All users in the Spack community expect to run on GPUs in the next year, +and over 90% plan to build for NVIDIA GPUs. Around half of the overall +community expects to build for AMD GPUs, and around 30% expect to build +for Intel GPUs. Within ECP, the percentage of users planning to run on +NVIDIA GPUs is very slightly lower, likely because NVIDIA will not be the +GPU on any of the initial three exascale machines. Aurora will be an +Intel GPU system and both Frontier and El Capitan will use AMD GPUs. As +you might expect, 80% of ECP users expect to use AMD GPUs and over half +expect to use Intel GPUs.

+ +

GPU usage in the EasyBuild community +was similarly high – 96.5% of EasyBuild users were compiling software +for GPUs – so it’s pretty clear that GPUs have become pervasive in HPC.

+ +

Which compilers do you expect to use with Spack in the next year?

+ +
+ + + +
+ +

As you might expect given the CPU and GPU results, Spack users +anticipate using a very wide range of compilers. gcc is still king, +with almost 100% of users expecting to use it, and LLVM and Intel +compilers are next on the list.

+ +

Interestingly, only around 60% planned to use nvcc, and a bit more than +40% planned to use NVIDIA’s HPC compilers. Given that over 90% of users +said they expected to build on NVIDIA GPUs, we’re tempted to explain the +discrepancy by saying that a large percentage of users expect to use +NVIDIA GPUs not through CUDA directly, but through GPU-optimized +libraries or through compiler capabilities like OpenMP offload. The same +can probably be said for AMD and Intel GPUs – the percentage of users +who plan to run with compilers specifically intended for these GPUs was +consistently lower than the number of users who anticipated using them.

+ +

Rank upcoming Spack features by importance

+ +
+ + + +
+ +

We asked respondents to rank some planned and not-yet-planned Spack +features by importance: “not important”, “slightly important”, “somewhat +important”, “very important”, and “critical”. The two most frequently +ranked “critical” (and also the top two features by average score) were +reusing external installs and the new concretizer. These are related, as +the new concretizer is needed to reuse existing installations.

+ +

After those, the most important features were better compiler flag +handling and better support for developers. Separate concretization of +build dependencies (i.e., using gcc for packages like CMake even if the +user asked that the main package be built with the Intel compilers) was +next on the list, followed by language virtuals (ability to depend on +cxx, c, or fortran and have that resolve to a compiler and runtime +library), automatic package maintainer notifications on GitHub, and build +testing.

+ +

The features rated least important were build testing, publicly +available optimized binary packages, package testing, cloud integration +for Spack, and Windows support, with the last three rated significantly +less important than all the others.

+ +

Every feature was listed as “critical” by at least some users, but there +are some clear preferences here that we’ll be trying to tailor our +efforts to. We already shipped the new concretizer as an experimental +feature in +Spack v0.16.0, and +we’ve already merged a number of fixes for it in +Spack v0.16.1. Separate +concretization of build dependencies and reusing existing installs are +both modifications that we’ll need to make to the new concretizer, and +we’ve already started looking into how we can provide them. Better +developer support, language virtuals, maintainer notifications, better +build testing, and package testing are already milestones for 2021.

+ +

The feature that stands out that we haven’t yet worked into our plans is +better compiler flag handling. Based on this survey we’re going to see if +we can work that into our schedule for 2021, as well.

+ +
+ + + + + + +
+ Feature ratings by workplace (left) and by job type (right). +
+
+ +

In addition to the community-wide averages above, we looked at whether +different segments of the community rated features differently. On the +right above, we split out average feature ratings by workplace, and on +the left we split them out by job type.

+ +

Overall, the rank order of features was similar across different +workplaces and job types. Reusing existing installs and the new +concretizer were consistently at the top of everyone’s list, and the +lowest-rated features had low ratings across the board. Industry users +prioritized cloud integration noticeably higher than other groups, and +user support staff placed a much higher value on package testing than +other job types (perhaps because they are involved in more package +testing efforts at their sites). Managers and ASCR labs rated separate +build dependencies lower than other groups. Other than these outliers +there were not significant deviations from the overall order of +preference.

+ +

There are some noticeable trends across groups. System administrators, +user support staff, and industry users tended to rate features as less +important across the board. It’s hard to know how to interpret this – it +could mean that they’re happy with the existing capabilities of Spack, or +that these particular improvements aren’t their top priorities.

+ +

If we had a (virtual) workshop on Spack, would you attend?

+ +

We’ve thought about having a Spack user meeting for a while, and we had +actually started planning for an inaugural Spack User Meeting earlier +this year. That fell apart when the pandemic hit. Other similar tools +have had good luck with meetings like this (e.g., +NixCon and the +EasyBuild User Meeting), +so we asked users what they thought of a potentially virtual meeting:

+ +
+ + + +
+ +

Just over half of users (over 85 people) said they would attend, and 17 +said they’d be willing to give a presentation. That seems like more than +enough for an initial Spack meeting, so expect us to announce something +for 2021.

+ +

Getting Help

+ +

We’re interested in making it easier to learn about Spack, so we asked +people how they’re doing it now.

+ +

Have you done a Spack tutorial?

+ +
+ + + +
+ +

We were surprised to see that over 60% of all our users have done a Spack +tutorial. Since 2016, We’ve been doing Spack tutorials at conferences +like Supercomputing, +ISC, and +PEARC, and this +year we had over 125 attendees at our virtual +Spack tutorial on AWS. This seems +to show that tutorials have been a very effective form of outreach, even +if they aren’t the main way people first hear about Spack (per our +earlier question). +At the very least, they likely contribute to the +high rate of contribution +in the community.

+ +

How do you get help with Spack when you need it?

+ +
+ + + +
+ +

Users go to the docs more than any other place for help with Spack. +Slack, +as mentioned above, +is also very popular – 50% of users use it to get help. We were happy to +see that around 40% of users get help from their coworkers, and when we +looked further at this data, those who got help from coworkers were not +confined to big laboratories – they came from +all the types of workplaces +that we considered.

+ +

How often do you consult the Spack documentation?

+ +
+ + + +
+ +

Users consult the documentation reasonably frequently – weekly to +monthly for most. A small fraction (14%) check it daily. ECP users check +the documentation less frequently on average than the community as a +whole, but +ECP users have also been using Spack for longer, +and are likely more familiar with it.

+ +

If there were commercial support for Spack, would you or your organization buy it?

+ +
+ + + +
+ +

We don’t have any plans to provide commercial support for Spack at the +moment, but it’s nice to know that 23%, or 39 users and their +organizations, might be willing to pay for it. That’s a fairly large +percentage of users willing to pay for support for an open source +product.

+ +

Quality of Spack

+ +

We wrapped up the multiple choice part of our survey with a final +question asking users to rate the quality of Spack.

+ +

How would you rate the overall quality of Spack, its community, docs, and packages?

+ +
+ + + +
+ +

Similar to our +question on features +above, users were asked to rate different parts of Spack as “horrible”, +“bad”, “ok”, “good”, and “excellent”. We split the results out by +workplace and job:

+ +
+ + + + + + +
+ Quality ratings by workplace (left) and by job type (right). +
+
+ +

Responses were positive on average for all categories. Only 3.5% of users +responded negatively for the quality of Spack overall (cf. +2% for EasyBuild, slide 60). Only 5% responded negatively for any aspect. Consistently, +the highest-rated aspect was the community, which is great, because Spack +wouldn’t be sustainable without its community. Just after the community +was Spack itself.

+ +

While both the community and Spack averaged “good” or higher overall, the +docs and packages had the lowest average ratings. While some users have +praised the documentation, +a lot of documentation has accumulated and it likely needs to be +organized better. Spack targets +many different kinds of users, +and there is not just one workflow. We’ve gotten a lot of requests to +provide clearer how-to guides for common site deployment and developer +workflows, which is something we plan to work on over the next year.

+ +

Spack packages are a harder problem. The package DSL is part of what +makes Spack unique – there is one template for each package, and the +same template lets you build any version or configuration of a package. +This makes it easier to port Spack packages to new systems, but it also +makes the testing surface for Spack packages very large. We think we +are still on the right path, for several reasons:

+ +
    +
  • Together with Kitware, we’ve built up a sophisticated CI system using +the support for +pipelines +built into Spack environments.
  • +
  • We’ve hooked up our GitLab instance to Spack’s main GitHub repository, +and within the next couple of weeks, we’ll be testing a subset of Spack +builds on every pull request.
  • +
  • These are the same builds used to produce ECP’s +Extreme Scale Scientific Software Stack (E4S).
  • +
+ +

One of our priorities for 2021 under ECP is hardening these builds and +testing Spack packages on a wide range of platforms, and now that the new +concretizer is in Spack, we expect to be able to steer Spack +configurations towards well-tested ones, based on builds in our pipeline +and under E4S. So, we expect package stability to get much better over +the coming year, and we’re hoping that it will show up in next year’s +survey responses.

+ +

Longer answers

+ +

We asked 6 long answer questions. If you want, you can read them all in +the data repository. The +number and length of responses to these was overwhelming, and we haven’t +come up with a great way to summarize them, but reading them all gave us +a great picture of what people in the community are up to. We’ve picked a +few responses per question and quoted them below.

+ +

Tell us briefly about your use case and your usual Spack workflow.

+ +
    +
  • +

    I am using Spack to build the software environment for our users on +our University’s centralized HPC system.

    +
  • +
  • +

    Using Spack to build complex applications natively. Moving the +build into containers, if possible with spack containerize.

    +
  • +
  • +

    We use spack to provide 3 consistent entry points into our nuclear +physics software environment: cvmfs, build_caches, containers.

    +
  • +
  • +

    Rather heterogeneous cluster with an environment per architecture. +Currently having lots of fun packaging bioinformatics tools.

    +
  • +
  • +

    Support Spack in Fugaku

    +
  • +
  • +

    I’m a math library developer and use spack to build third party +libraries e.g., blas, lapack, MPI, hypre, SuperLU_MT, +SuperLU_DIST, PETSc, and Trilinos both for developing on my +laptop and for continuous integration on a dedicated workstation.

    +
  • +
  • +

    We use spack to install most facility-provided software on OLCF HPC +machines.

    +
  • +
  • +

    Distributed build system with Spack environments

    +
  • +
+ +

What about Spack helps you the most?

+ +
    +
  • +

    The community

    +
  • +
  • +

    Greg Becker responding to my questions on Slack.

    +
  • +
  • +

    How Spack handles installation of multiple versions of the same app.

    +
  • +
  • +

    How Spack should be Linux OS agnostic (yet to be tested) so we can +experiment with offering other distros for users.

    +
  • +
  • +

    Absolute flexibility, especially compared to, i.e., nix. And +dependency handling, which I never want to do manually again.

    +
  • +
  • +

    I’m still in dependency hell, but Spack took me from the 7th circle +(violence - for the violence I’d like to commit against my keyboard +while building things) to the 3rd circle (gluttony - for the +voracious appetite I now have for spack-installed packages and the +indulgent number of dependencies they require).

    +
  • +
  • +

    Well-defined package specifications and solid concretization.

    +
  • +
  • +

    The concretizer (despite some issues) is the most helpful aspect of +Spack. It allows for automatic dependency management and +reproducibility.

    +
  • +
+ +

What are the biggest pain points in Spack for your workflow?

+ +
    +
  • +

    surprising re-concretizations, updating environments and removing old +packages

    +
  • +
  • +

    inter dependencies with many variants makes a huge/complicated +package file

    +
  • +
  • +

    Better parallel building of environments. I think Slurm integration +could be very good to have.

    +
  • +
  • +

    Right now, the time it takes to concretize in our deployment with ~2000 +packages already in the database.

    +
  • +
  • +

    Not having language virtual dependencies makes it harder to have +language polyfills for newer features when the compiler doesn’t support +them. It also is hard to say what compiler versions you support

    +
  • +
  • +

    c++ language standard dependencies, build dependency blow-up

    +
  • +
  • +

    It seems that we should specify external package path every time so it +would be great if Spack can detect preinstalled libraries.

    +
  • +
+ +

What’s the biggest thing we could do to improve Spack over the next year?

+ +
    +
  • +

    Keep doing outreach efforts, videos, tutorials, hackathons, whatever to +spread the voice more.

    +
  • +
  • +

    Python as a virtual dependency

    +
  • +
  • +

    The complaint I still have to field from people is “I tried to build a +simple package, and Spack built Python and CMake and and and and…” so +I think better deciphering of externals (which I know you’re working on +as we speak) would be good.

    +
  • +
  • +

    QA: less features but really solid CI on tagged releases, including +packages.

    +
  • +
  • +

    Cross compiler support, new concreteizer

    +
  • +
  • +

    Documentation organisation, examples, and explicit API listing of all + internal functionality.

    +
  • +
  • +

    New concretizer, maintainer bot

    +
  • +
  • +

    Build lots of buildcaches for each site to speed up builds. It could be +nice to have a cloud repository could be AWS, GCP, where spack host all +the buildcaches.

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    Fully-working backtracking concretizer

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    Don’t lose momentum.

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Are there key packages you’d like to see in Spack that are not included yet?

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    Probably new build system support like Julia / Golang

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    I would like to be able to contribute one day adding the Uintah +software suite

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    moose

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    WRF. I’m aware that it’s now included in develop branch.

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    None that we haven’t been able to rapidly write for ourselves.

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Do you have any other comments for us?

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    This project makes me enjoy coming into work.

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    Yes, I like spack, can’t do without it now.

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    It would be great if https://github.com/spack/spack-configs +included more DOE machines and were updated more frequently. If the +administrators at computing centers provide these files somewhere it +does not seem to be well advertised to users.

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    Pretty much every year my biggest victory with Spack is “they fixed the +thing that was biggest gripe about Spack last year,” which is a sign of +a really good job listening to users, so keep that up.

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    Keep up the good work. I will continue using and supporting Spack for +many years to come.

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    Keep being awesome! Spack is my favorite tool of the last 5 years!

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    It’s easy to create a real tangle of versions and special builds. I +think the project should work to maintain good communication with the +application developers, so that standard or common/expected versions and +dependency sets can be more clearly identified

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    Spack is extraordinary and blows away all past attempts to bring +sanity to HPC software. I encourage you to offer commercial support. +Please have support tiers that allow us to select an appropriate +level of support.

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Updated:

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-wins-flc-award/index.html b/spack-wins-flc-award/index.html new file mode 100644 index 00000000..42f1b155 --- /dev/null +++ b/spack-wins-flc-award/index.html @@ -0,0 +1,433 @@ + + + + + + + +Spack wins FLC award - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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We’re excited to announce that Spack received a regional technology transfer award from the Federal Laboratory Consortium (FLC). The FLC has been around since 1974 and recognizes federal labs and their industry partners for outstanding tech transfer achievements. Thanks to the global Spack community for helping us make Spack what it is!

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/spack-wins-rd-100-award/index.html b/spack-wins-rd-100-award/index.html new file mode 100644 index 00000000..e2af897a --- /dev/null +++ b/spack-wins-rd-100-award/index.html @@ -0,0 +1,435 @@ + + + + + + + +Spack wins R&D 100 award - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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The trade journal R&D World Magazine announced the winners of its annual awards on October 31. And Spack is one of the winners! The competition recognizes top scientific and engineering products and tech with commercial potential. We also received a silver medal in the Market Disruptor category. Check out the video we submitted for the award and this photo of Greg Becker juggling the plaques.

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+ + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/staticman.yml b/staticman.yml new file mode 100644 index 00000000..a4f161b7 --- /dev/null +++ b/staticman.yml @@ -0,0 +1,104 @@ +# Name of the property. You can have multiple properties with completely +# different config blocks for different sections of your site. +# For example, you can have one property to handle comment submission and +# another one to handle posts. +# To encrypt strings use the following endpoint: +# https://api.staticman.net/v2/encrypt/{TEXT TO BE ENCRYPTED} + +comments: + # (*) REQUIRED + # + # Names of the fields the form is allowed to submit. If a field that is + # not here is part of the request, an error will be thrown. + allowedFields: ["name", "email", "url", "message"] + + # (*) REQUIRED WHEN USING NOTIFICATIONS + # + # When allowedOrigins is defined, only requests sent from one of the domains + # listed will be accepted. The origin is sent as part as the `options` object + # (e.g. + + + +Spack CI Status - Spack + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ All services are operational. + +

+

+ GitLab CI Pipelines Dashboard +

+

+ GitLab CI Jobs Dashboard +

+

+ Build Timing Dashboard +

+

+ Runner Pressure Dashboard +

+

+ Cloud Runners Dashboard +

+
+

Updates

+ +

June 19, 2023

+ https://gitlab.spack.io is back up. +
+ +

June 19, 2023

+ https://gitlab.spack.io is down for maintenance. +
+ +

May 3, 2023

+ https://gitlab.spack.io is back up. +
+ +

Apr 28, 2023

+ https://gitlab.spack.io is down for maintenance. +
+ +

Feb 21, 2023

+ https://gitlab.spack.io is back up. +
+ +

Feb 21, 2023

+ https://gitlab.spack.io is currently down, we are working to restore it. +
+ +

Jan 26, 2023

+ Maintenance complete. +
+ +

Jan 25, 2023

+ https://gitlab.spack.io will be down for maintenance on January 25th, 2023 from approximately 8AM - 3PM (PST). +
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