[FC-0009] [FAL-3496] Copy/paste unit from within a unit

cms/static/js/base.js

@@ -75,6 +75,7 @@ function(
         $body.click(function() {
             $('.nav-dd .nav-item .wrapper-nav-sub').removeClass('is-shown');
             $('.nav-dd .nav-item .title').removeClass('is-selected');
+            $('.custom-dropdown .dropdown-options').hide();
         });
 
         $('.nav-dd .nav-item, .filterable-column .nav-item').click(function(e) {

cms/static/js/spec/views/pages/container_subviews_spec.js

@@ -581,33 +581,6 @@ describe('Container Subviews', function() {
         });
     });
 
-    describe('PublishHistory', function() {
-        var lastPublishCss = '.wrapper-last-publish';
-
-        it('renders never published when the block is unpublished', function() {
-            renderContainerPage(this, mockContainerXBlockHtml, {
-                published: false, published_on: null, published_by: null
-            });
-            expect(containerPage.$(lastPublishCss).text()).toContain('Never published');
-        });
-
-        it('renders the last published date and user when the block is published', function() {
-            renderContainerPage(this, mockContainerXBlockHtml);
-            fetch({
-                published: true, published_on: 'Jul 01, 2014 at 12:45 UTC', published_by: 'amako'
-            });
-            expect(containerPage.$(lastPublishCss).text())
-                .toContain('Last published Jul 01, 2014 at 12:45 UTC by amako');
-        });
-
-        it('renders correctly when the block is published without publish info', function() {
-            renderContainerPage(this, mockContainerXBlockHtml);
-            fetch({
-                published: true, published_on: null, published_by: null
-            });
-            expect(containerPage.$(lastPublishCss).text()).toContain('Previously published');
-        });
-    });
 
     describe('Message Area', function() {
         var messageSelector = '.container-message .warning',

cms/static/js/views/pages/container.js

@@ -77,6 +77,7 @@ function($, _, Backbone, gettext, BasePage,
                 model: this.model
             });
             this.messageView.render();
+            this.clipboardBroadcastChannel = new BroadcastChannel("studio_clipboard_channel");
             // Display access message on units and split test components
             if (!this.isLibraryPage) {
                 this.containerAccessView = new ContainerSubviews.ContainerAccess({
@@ -89,7 +90,8 @@ function($, _, Backbone, gettext, BasePage,
                     el: this.$('#publish-unit'),
                     model: this.model,
                     // When "Discard Changes" is clicked, the whole page must be re-rendered.
-                    renderPage: this.render
+                    renderPage: this.render,
+                    clipboardBroadcastChannel: this.clipboardBroadcastChannel,
                 });
                 this.xblockPublisher.render();
 
@@ -120,7 +122,6 @@ function($, _, Backbone, gettext, BasePage,
             }
 
             this.listenTo(Backbone, 'move:onXBlockMoved', this.onXBlockMoved);
-            this.clipboardBroadcastChannel = new BroadcastChannel("studio_clipboard_channel");
         },
 
         getViewParameters: function() {
@@ -175,6 +176,7 @@ function($, _, Backbone, gettext, BasePage,
                     if (!self.isLibraryPage && !self.isLibraryContentPage) {
                         self.initializePasteButton();
                     }
+
                 },
                 block_added: options && options.block_added
             });

cms/static/js/views/pages/container_subviews.js

@@ -107,7 +107,8 @@ function($, _, gettext, BaseView, ViewUtils, XBlockViewUtils, MoveXBlockUtils, H
         events: {
             'click .action-publish': 'publish',
             'click .action-discard': 'discardChanges',
-            'click .action-staff-lock': 'toggleStaffLock'
+            'click .action-staff-lock': 'toggleStaffLock',
+            'click .action-copy': 'copyToClipboard'
         },
 
         // takes XBlockInfo as a model
@@ -117,6 +118,7 @@ function($, _, gettext, BaseView, ViewUtils, XBlockViewUtils, MoveXBlockUtils, H
             this.template = this.loadTemplate('publish-xblock');
             this.model.on('sync', this.onSync, this);
             this.renderPage = this.options.renderPage;
+            this.clipboardBroadcastChannel = this.options.clipboardBroadcastChannel;
         },
 
         onSync: function(model) {
@@ -174,6 +176,50 @@ function($, _, gettext, BaseView, ViewUtils, XBlockViewUtils, MoveXBlockUtils, H
             });
         },
 
+        copyToClipboard: function(e) {
+            e.preventDefault();
+            e.stopPropagation();
+            const clipboardEndpoint = "/api/content-staging/v1/clipboard/";
+            const usageKeyToCopy = this.model.get('id');
+            // Start showing a "Copying" notification:
+            ViewUtils.runOperationShowingMessage(gettext('Copying'), () => {
+                return $.postJSON(
+                    clipboardEndpoint,
+                    { usage_key: usageKeyToCopy },
+                ).then((data) => {
+                    const status = data.content?.status;
+                    if (status === "ready") {
+                        // something that enables the paste button in the actions dropdown
+                        this.clipboardBroadcastChannel.postMessage(data);
+                        return data;
+                    } else if (status === "loading") {
+                        // The clipboard is being loaded asynchonously.
+                        // Poll the endpoint until the copying process is complete:
+                        const deferred = $.Deferred();
+                        const checkStatus = () => {
+                            $.getJSON(clipboardEndpoint, (pollData) => {
+                                const newStatus = pollData.content?.status;
+                                if (newStatus === "ready") {
+                                    // something that enables the paste button in actions dropdown
+                                    this.clipboardBroadcastChannel.postMessage(pollData);
+                                    deferred.resolve(pollData);
+                                } else if (newStatus === "loading") {
+                                    setTimeout(checkStatus, 1_000);
+                                } else {
+                                    deferred.reject();
+                                    throw new Error(`Unexpected clipboard status "${newStatus}" in successful API response.`);
+                                }
+                            })
+                        }
+                        setTimeout(checkStatus, 1_000);
+                        return deferred;
+                    } else {
+                        throw new Error(`Unexpected clipboard status "${status}" in successful API response.`);
+                    }
+                });
+            });
+        },
+
         discardChanges: function(e) {
             var xblockInfo = this.model,
                 renderPage = this.renderPage;

cms/static/js/views/utils/xblock_utils.js

@@ -8,7 +8,7 @@ function($, _, gettext, ViewUtils, ModuleUtils, XBlockInfo, StringUtils) {
 
     var addXBlock, duplicateXBlock, deleteXBlock, createUpdateRequestData, updateXBlockField, VisibilityState,
         getXBlockVisibilityClass, getXBlockListTypeClass, updateXBlockFields, getXBlockType, findXBlockInfo,
-        moveXBlock;
+        moveXBlock, pasteXBlock;
 
     /**
          * Represents the possible visibility states for an xblock:
@@ -69,6 +69,85 @@ function($, _, gettext, ViewUtils, ModuleUtils, XBlockInfo, StringUtils) {
             });
     };
 
+    pasteXBlock = function(target) {
+        var parentLocator = target.data('parent'),
+            displayName = target.data('default-name');
+
+        return ViewUtils.runOperationShowingMessage(gettext('Pasting'), () => {
+            return $.postJSON(ModuleUtils.getUpdateUrl(), {
+                parent_locator: parentLocator,
+                staged_content: "clipboard",
+            }).then((data) => {
+                return data;
+            });
+        }).done((data) => {
+            const {
+                conflicting_files: conflictingFiles,
+                error_files: errorFiles,
+                new_files: newFiles,
+            } = data.static_file_notices;
+
+            const notices = [];
+            if (errorFiles.length) {
+                notices.push((next) => new PromptView.Error({
+                    title: gettext("Some errors occurred"),
+                    message: (
+                        gettext("The following required files could not be added to the course:") +
+                        " " + errorFiles.join(", ")
+                    ),
+                    actions: {primary: {text: gettext("OK"), click: (x) => { x.hide(); next(); }}},
+                }));
+            }
+            if (conflictingFiles.length) {
+                notices.push((next) => new PromptView.Warning({
+                    title: gettext("You may need to update a file(s) manually"),
+                    message: (
+                        gettext(
+                            "The following files already exist in this course but don't match the " +
+                            "version used by the component you pasted:"
+                        ) + " " + conflictingFiles.join(", ")
+                    ),
+                    actions: {primary: {text: gettext("OK"), click: (x) => { x.hide(); next(); }}},
+                }));
+            }
+            if (newFiles.length) {
+                notices.push(() => new NotificationView.Info({
+                    title: gettext("New file(s) added to Files & Uploads."),
+                    message: (
+                        gettext("The following required files were imported to this course:") +
+                        " "  + newFiles.join(", ")
+                    ),
+                    actions: {
+                        primary: {
+                            text: gettext('View files'),
+                            click: function(notification) {
+                                const article = document.querySelector('[data-course-assets]');
+                                const assetsUrl = $(article).attr('data-course-assets');
+                                window.location.href = assetsUrl;
+                                return;
+                            }
+                        },
+                        secondary: {
+                            text: gettext('Dismiss'),
+                            click: function(notification) {
+                                return notification.hide();
+                            }
+                        }
+                    }
+                }));
+            }
+            if (notices.length) {
+                // Show the notices, one at a time:
+                const showNext = () => {
+                    const view = notices.shift()(showNext);
+                    view.show();
+                }
+                // Delay to avoid conflict with the "Pasting..." notification.
+                setTimeout(showNext, 1250);
+            }
+        });
+    };
+
     /**
          * Duplicates the specified xblock element in its parent xblock.
          * @param {jquery Element}  xblockElement  The xblock element to be duplicated.
@@ -308,6 +387,7 @@ function($, _, gettext, ViewUtils, ModuleUtils, XBlockInfo, StringUtils) {
         getXBlockListTypeClass: getXBlockListTypeClass,
         updateXBlockFields: updateXBlockFields,
         getXBlockType: getXBlockType,
-        findXBlockInfo: findXBlockInfo
+        findXBlockInfo: findXBlockInfo,
+        pasteXBlock: pasteXBlock
     };
 });

cms/static/js/views/xblock.js

@@ -14,6 +14,10 @@ function($, _, ViewUtils, BaseView, XBlock, HtmlUtils) {
             'click .notification-action-button': 'fireNotificationActionEvent'
         },
 
+        options: {
+            clipboardData: { content: null },
+        },
+
         initialize: function() {
             BaseView.prototype.initialize.call(this);
             this.view = this.options.view;

cms/static/sass/elements/_navigation.scss

@@ -288,6 +288,11 @@ $seq-nav-height: 40px;
   ol {
     display: flex;
 
+    .custom-dropdown {
+      position: relative;
+      display: inline-flex;
+    }
+
     li {
       box-sizing: border-box;
       min-width: 40px;
@@ -300,6 +305,47 @@ $seq-nav-height: 40px;
         @include border-right-style(solid);
       }
 
+      .dropdown-main-button {
+        border-right: 1px solid #e7e7e7 !important;
+      }
+
+      .dropdown-toggle-button {
+        width: 15% !important;
+
+        &:hover {
+          border-bottom: 1px solid #e7e7e7 !important;
+        }
+      }
+
+      .dropdown-options {
+        position: absolute;
+        top: 100%;
+        z-index: 1000;
+        background-color: #ffffff;
+        min-width: 265px;
+        right: 0;
+
+        li {
+          padding: 0.5em 1em;
+          cursor: pointer;
+
+          a {
+            display: block;
+            width: 100%;
+            color: black;
+          }
+
+          .checkmark {
+            float: right;
+            margin-left: 10px;
+          }
+        }
+      }
+
+      .dropdown-options li:hover {
+        background-color: #f1f1f1;
+      }
+
       button {
         @extend %ui-fake-link;
         @extend %ui-clear-button;

cms/static/sass/views/_container.scss

@@ -239,6 +239,19 @@
             color: $gray-l1;
           }
         }
+
+        .action-copy {
+          width: 100%;
+          border-color: #0075b4;
+          padding-top: 10px;
+          padding-bottom: 10px;
+          line-height: 24px;
+          border-radius: 4px;
+
+          &:hover {
+            @extend %btn-primary-blue;
+          }
+        }
       }
     }