jquery.flurry.min.js

/**
 * Flurry jQuery Plugin
 *
 * Flurry is an easy-to-use animated snow plugin for jQuery. It takes advantage
 * of CSS transforms, CSS transitions and requestAnimationFrame to provide
 * smooth animation for modern browsers. Props to Jonathan Nicol @f6design
 * for boilerplate code
 * (see http://jonathannicol.com/blog/2012/05/06/a-jquery-plugin-boilerplate/)
 *
 * @link      https://github.com/joshmcrty/Flurry
 * @version   1.2.0
 * @author    Josh McCarty <josh@joshmccarty.com>
 * @copyright 2016 Josh McCarty
 * @license   https://github.com/joshmcrty/Flurry/blob/master/LICENSE GPLv2
 */
!function(n,e){!function(){for(var n=0,e=["ms","moz","webkit","o"],a=0;a<e.length&&!window.requestAnimationFrame;++a)window.requestAnimationFrame=window[e[a]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[a]+"CancelAnimationFrame"]||window[e[a]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,a){var t=(new Date).getTime(),i=Math.max(0,16-Math.abs(t-n)),r=window.setTimeout(function(){e(t+i)},i);return n=t+i,r}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(n){clearTimeout(n)})}();var a="flurry";function t(n,e){return Math.floor(Math.random()*(e-n+1)+n)}function i(a,i,r){var o=1===a.character.length?Array.isArray(a.character)?a.character[0]:a.character:Array.isArray(a.character)?a.character[t(0,a.character.length-1)]:Array.from(a.character)[t(0,a.character.length-1)];"string"==typeof a.character&&console&&console.warn&&console.warn("You are using a string for the Flurry character options. Please use an array of string(s) instead.");var s=t(-Math.abs(a.wind),r+Math.abs(a.wind)),c=s+t(a.wind-a.windVariance,a.wind+a.windVariance),l=t(a.small,a.large),u=a.speed/((t(1.2*l,.8*l)-a.small)/(a.large-a.small)+.5),m=a.height-l,w=t(a.rotation-a.rotationVariance,a.rotation+a.rotationVariance),d=Array.isArray(a.color)?a.color[Math.floor(Math.random()*a.color.length)]:a.color,h={transform:"translateX("+c+"px) translateY("+m+"px) rotateZ("+w+"deg)",opacity:0},f=n("<span></span>");f.html(o).css({color:a.blur&&l<(a.large+a.small)/2?"transparent":d,"text-shadow":a.blur&&l<(a.large+a.small)/2?"0 0 1px "+d:"none",display:"inline-block","line-height":1,margin:0,padding:"2px","pointer-events":"none","font-size":l+"px",opacity:a.startTransparency,position:"absolute",top:"-"+1.2*a.large+"px",transform:"translateX("+s+"px) translateY(0px) rotateZ("+a.startRotation+"deg)",transition:"transform "+u/1e3+"s linear, opacity "+u/1e3+"s "+a.opacityEasing,"z-index":a.zIndex}),a.onFlake!==e&&a.onFlake.call(f[0]),f.appendTo(i),!function(){var n=(document.body||document.documentElement).style;return n.transition!==e||n.WebkitTransition!==e||n.MozTransition!==e||n.MsTransition!==e||n.OTransition!==e}?f.animate(h,u,"linear",function(){n(this).remove()}):(f.on("transitionend.flurry",function(e){n(e.target).remove()}),window.requestAnimationFrame(function(){f.css(h)}))}function r(t,r){var o=this,s=t,c=n(t);function l(n){r[n]!==e&&r[n].call(s)}return r=n.extend({height:c.height()>200?200:c.height(),useRelative:!c.is("body")},n.fn[a].defaults,r),n.each(r,function(n,e){parseInt(e)&&(r[n]=parseInt(e))}),function(){!0===r.useRelative&&"static"===c.css("position")&&c.css({position:"relative"});var e,a,t,s,u=n(document.createElement("div")).addClass("flurry-container").css({margin:0,padding:0,position:"absolute",top:0,right:0,left:0,height:r.height,overflow:r.overflow,"pointer-events":"none"}).prependTo(c),m=u.width();n(window).resize(function(){m=u.width()}),o.flakeInterval=(e=function(){i(r,u,m)},a=r.frequency,t=(new Date).getTime(),(s=new Object).value=window.requestAnimationFrame(function n(){(new Date).getTime()-t>=a&&(e.call(),t=(new Date).getTime()),s.value=window.requestAnimationFrame(n)}),s),l("onInit")}(),{option:function(n,e){if(!e)return r[n];r[n]=parseInt(e)||e},destroy:function(){c.each(function(){var e,t=n(this);e=o.flakeInterval,window.cancelAnimationFrame?window.cancelAnimationFrame(e.value):window.webkitCancelAnimationFrame?window.webkitCancelAnimationFrame(e.value):window.webkitCancelRequestAnimationFrame?window.webkitCancelRequestAnimationFrame(e.value):window.mozCancelRequestAnimationFrame?window.mozCancelRequestAnimationFrame(e.value):window.oCancelRequestAnimationFrame?window.oCancelRequestAnimationFrame(e.value):window.msCancelRequestAnimationFrame?window.msCancelRequestAnimationFrame(e.value):clearInterval(e),t.find(".flurry-container").remove(),l("onDestroy"),t.removeData("plugin_"+a)})}}}n.fn[a]=function(t){if("string"==typeof arguments[0]){var i,o=arguments[0],s=Array.prototype.slice.call(arguments,1);return this.each(function(){if(!n.data(this,"plugin_"+a)||"function"!=typeof n.data(this,"plugin_"+a)[o])throw new Error("Method "+o+" does not exist on jQuery."+a);i=n.data(this,"plugin_"+a)[o].apply(this,s)}),i!==e?i:this}if("object"==typeof t||!t)return this.each(function(){n.data(this,"plugin_"+a)||n.data(this,"plugin_"+a,new r(this,t))})},n.fn[a].defaults={onInit:e,onDestroy:e,onFlake:e,character:["❄"],color:"white",frequency:100,speed:3e3,small:8,large:28,wind:40,windVariance:20,rotation:90,rotationVariance:180,startRotation:0,startOpacity:1,endOpacity:0,opacityEasing:"cubic-bezier(1,.3,.6,.74)",blur:!1,overflow:"hidden",zIndex:9999}}(jQuery);