Ticket #26631: 26631.5.diff

src/wp-content/themes/twentyfourteen/functions.php

@@ -111 +111 @@
                 'max_posts' => 6,
         ) );
 
+        add_post_type_support( 'attachment:audio', 'thumbnail' );
+        add_post_type_support( 'attachment:video', 'thumbnail' );
+        add_theme_support( 'post-thumbnails', array( 'post', 'attachment:audio', 'attachment:video' ) );
+
         // This theme uses its own gallery styles.
         add_filter( 'use_default_gallery_style', '__return_false' );
 }

src/wp-includes/class-wp-editor.php

@@ -232 +232 @@
                                                 'wordpress',
                                                 'wpeditimage',
                                                 'wpgallery',
+                                                'wpplaylist',
                                                 'wplink',
                                                 'wpdialogs',
                                         ) ) );

src/wp-includes/css/editor.css

@@ -472 +472 @@
 }
 
 #wp_editbtns,
-#wp_gallerybtns {
+#wp_gallerybtns,
+#wp_playlistbtns {
         padding: 2px;
         position: absolute;
         display: none;
@@ -482 +483 @@
 #wp_editimgbtn,
 #wp_delimgbtn,
 #wp_editgallery,
-#wp_delgallery {
+#wp_delgallery,
+#wp_editplaylist,
+#wp_delplaylist {
         border-color: #999;
         background-color: #eee;
         margin: 2px;
@@ -496 +499 @@
 #wp_editimgbtn:hover,
 #wp_delimgbtn:hover,
 #wp_editgallery:hover,
-#wp_delgallery:hover {
+#wp_delgallery:hover,
+#wp_editplaylist:hover,
+#wp_delplaylist:hover {
         border-color: #555;
         background-color: #ccc;
 }

src/wp-includes/css/media-views.css

@@ -589 +589 @@
         box-shadow: 0 4px 4px -4px rgba( 0, 0, 0, 0.1 );
 }
 
-.media-frame .media-toolbar .add-to-gallery {
+.media-frame .media-toolbar .add-to-gallery, .media-frame .media-toolbar .add-to-playlist {
         display: none;
 }
 
@@ -1410 +1410 @@
         margin: 1.4em 0 0.4em;
 }
 
-.gallery-settings {
+.gallery-settings, .playlist-settings {
         overflow: hidden;
 }
 
@@ -1686 +1686 @@
         .media-modal-close {
                 right: 10px;
         }
-        
+
         /* Text inputs need to be 16px, or they force zooming on iOS */
         .media-frame input[type="text"],
         .media-frame input[type="password"],
@@ -1734 +1734 @@
         .media-frame-title {
                 display: none;
         }
-        
+
         .media-frame-toolbar {
                 position: absolute;
                 bottom: 0px;
@@ -1759 +1759 @@
         .attachment-details h3 {
                 margin-top: 45px;
         }
-                
+
         /* Shorten right-side links so they don't overlap the close button */
         .media-menu a:nth-child(2),
         .media-menu a:last-child {
@@ -1785 +1785 @@
                 top: 84px;
                 left: 0;
         }
-        
+
         .media-frame-content {
                 left: 0;
                 top: 118px;
@@ -1794 +1794 @@
         .media-frame .attachments-browser {
                 padding-bottom: 300px;
         }
-        
+
         .media-sidebar {
                 border-bottom: 1px solid #dddddd;
         }
-        
+
         .media-modal {
                 width: auto;
         }
@@ -1867 +1867 @@
                 border-top: none;
         }
 
-        .gallery-settings h3 {
+        .gallery-settings h3, .playlist-settings h3 {
                 margin-top: 45px;
         }
 
@@ -1904 +1904 @@
         .media-frame-content {
                 top: 78px;
         }
-        
+
         .attachments-browser .attachments {
                 top: 2px;
         }

src/wp-includes/js/media-editor.js

@@ -8 +8 @@
          *
          * @static
          */
-        var workflows = {};
+        var workflows = {}, cache = {};
 
         /**
          * wp.media.string
@@ -273 +273 @@
                         return html;
                 }
         };
-
         /**
-         * wp.media.gallery
+         * wp.media.collection
          * @namespace
          */
-        wp.media.gallery = (function() {
-                /**
-                 *
-                 * @static
-                 * @type object
-                 */
-                var galleries = {};
+        wp.media.collection = {
+                attachments : function ( prop, type ) {
+                        return function( shortcode ) {
+                                var shortcodeString = shortcode.string(),
+                                        result = cache[ shortcodeString ],
+                                        attrs, args, query, others;
 
-                return {
-                        /**
-                         * Default gallery properties
-                         *
-                         * @global wp.media.view.settings
-                         * @readonly
-                         */
-                        defaults: {
-                                order:      'ASC',
-                                id:         wp.media.view.settings.post.id,
-                                itemtag:    'dl',
-                                icontag:    'dt',
-                                captiontag: 'dd',
-                                columns:    '3',
-                                link:       'post',
-                                size:       'thumbnail',
-                                orderby:    'menu_order ID'
-                        },
-                        /**
-                         * Retrieve attachments based on the properties of the passed shortcode
-                         *
-                         * @global wp.media.query
-                         *
-                         * @param {wp.shortcode} shortcode An instance of wp.shortcode().
-                         * @returns {wp.media.model.Attachments} A Backbone.Collection containing
-                         *      the images belonging to a gallery. The 'gallery' prop is a Backbone.Model
-                         *      containing the 'props' for the gallery.
-                         */
-                        attachments: function( shortcode ) {
-                                var shortcodeString = shortcode.string(),
-                                        result = galleries[ shortcodeString ],
-                                        attrs, args, query, others;
+                                delete cache[ shortcodeString ];
 
-                                delete galleries[ shortcodeString ];
-
-                                if ( result ) {
-                                        return result;
+                                if ( result ) {
+                                        return result;
                                 }
 
-                                // Fill the default shortcode attributes.
-                                attrs = _.defaults( shortcode.attrs.named, wp.media.gallery.defaults );
-                                args  = _.pick( attrs, 'orderby', 'order' );
+                                // Fill the default shortcode attributes.
+                                attrs = _.defaults( shortcode.attrs.named, this.defaults );
+                                args  = _.pick( attrs, 'orderby', 'order' );
 
-                                args.type    = 'image';
-                                args.perPage = -1;
+                                args.type = type;
+                                args.perPage = -1;
 
-                                // Mark the `orderby` override attribute.
-                                if( undefined !== attrs.orderby ) {
-                                        attrs._orderByField = attrs.orderby;
+                                // Mark the `orderby` override attribute.
+                                if ( undefined !== attrs.orderby ) {
+                                        attrs._orderByField = attrs.orderby;
                                 }
+
                                 if ( 'rand' === attrs.orderby ) {
                                         attrs._orderbyRandom = true;
                                 }
@@ -365 +331 @@
                                 others = _.omit( attrs, 'id', 'ids', 'include', 'exclude', 'orderby', 'order' );
 
                                 query = wp.media.query( args );
-                                query.gallery = new Backbone.Model( others );
+                                query[ prop ] = new Backbone.Model( others );
                                 return query;
-                        },
-                        /**
-                         * Triggered when clicking 'Insert Gallery' or 'Update Gallery'
-                         *
-                         * @global wp.shortcode
-                         * @global wp.media.model.Attachments
-                         *
-                         * @param {wp.media.model.Attachments} attachments A Backbone.Collection containing
-                         *      the images belonging to a gallery. The 'gallery' prop is a Backbone.Model
-                         *      containing the 'props' for the gallery.
-                         * @returns {wp.shortcode}
-                         */
-                        shortcode: function( attachments ) {
-                                var props = attachments.props.toJSON(),
-                                        attrs = _.pick( props, 'orderby', 'order' ),
-                                        shortcode, clone;
+                        };
+                },
 
-                                if ( attachments.gallery ) {
-                                        _.extend( attrs, attachments.gallery.toJSON() );
-                                }
+                shortcodeAttrs : function ( prop, attachments ) {
+                        var props = attachments.props.toJSON(),
+                                attrs = _.pick( props, 'orderby', 'order', 'style' );
 
-                                // Convert all gallery shortcodes to use the `ids` property.
-                                // Ignore `post__in` and `post__not_in`; the attachments in
-                                // the collection will already reflect those properties.
-                                attrs.ids = attachments.pluck('id');
+                        if ( attachments[ prop ] ) {
+                                _.extend( attrs, attachments[ prop ].toJSON() );
+                        }
 
-                                // Copy the `uploadedTo` post ID.
-                                if ( props.uploadedTo ) {
-                                        attrs.id = props.uploadedTo;
-                                }
+                        // Convert all collection shortcodes to use the `ids` property.
+                        // Ignore `post__in` and `post__not_in`; the attachments in
+                        // the collection will already reflect those properties.
+                        attrs.ids = attachments.pluck('id');
 
-                                // Check if the gallery is randomly ordered.
-                                delete attrs.orderby;
+                        // Copy the `uploadedTo` post ID.
+                        if ( props.uploadedTo ) {
+                                attrs.id = props.uploadedTo;
+                        }
 
-                                if ( attrs._orderbyRandom ) {
-                                        attrs.orderby = 'rand';
-                                } else if ( attrs._orderByField && attrs._orderByField != 'rand' ) {
-                                        attrs.orderby = attrs._orderByField;
-                                }
+                        // Check if the collection is randomly ordered.
+                        delete attrs.orderby;
 
-                                delete attrs._orderbyRandom;
-                                delete attrs._orderByField;
+                        if ( attrs._orderbyRandom ) {
+                                attrs.orderby = 'rand';
+                        } else if ( attrs._orderByField && attrs._orderByField != 'rand' ) {
+                                attrs.orderby = attrs._orderByField;
+                        }
 
-                                // If the `ids` attribute is set and `orderby` attribute
-                                // is the default value, clear it for cleaner output.
-                                if ( attrs.ids && 'post__in' === attrs.orderby ) {
-                                        delete attrs.orderby;
-                                }
+                        delete attrs._orderbyRandom;
+                        delete attrs._orderByField;
 
-                                // Remove default attributes from the shortcode.
-                                _.each( wp.media.gallery.defaults, function( value, key ) {
-                                        if ( value === attrs[ key ] )
-                                                delete attrs[ key ];
-                                });
+                        // If the `ids` attribute is set and `orderby` attribute
+                        // is the default value, clear it for cleaner output.
+                        if ( attrs.ids && 'post__in' === attrs.orderby ) {
+                                delete attrs.orderby;
+                        }
 
-                                shortcode = new wp.shortcode({
-                                        tag:    'gallery',
-                                        attrs:  attrs,
-                                        type:   'single'
-                                });
+                        // Remove default attributes from the shortcode.
+                        _.each( this.defaults, function( value, key ) {
+                                if ( value === attrs[ key ] ) {
+                                        delete attrs[ key ];
+                                }
+                        });
 
-                                // Use a cloned version of the gallery.
-                                clone = new wp.media.model.Attachments( attachments.models, {
-                                        props: props
-                                });
-                                clone.gallery = attachments.gallery;
-                                galleries[ shortcode.string() ] = clone;
+                        return attrs;
+                },
 
-                                return shortcode;
-                        },
-                        /**
-                         * Triggered when double-clicking a Gallery shortcode placeholder
-                         *   in the editor
-                         *
-                         * @global wp.shortcode
-                         * @global wp.media.model.Selection
-                         * @global wp.media.view.l10n
-                         *
-                         * @param {string} content Content that is searched for possible
-                         *    shortcode markup matching the passed tag name,
-                         *
-                         * @this wp.media.gallery
-                         *
-                         * @returns {wp.media.view.MediaFrame.Select} A media workflow.
-                         */
-                        edit: function( content ) {
-                                var shortcode = wp.shortcode.next( 'gallery', content ),
-                                        defaultPostId = wp.media.gallery.defaults.id,
-                                        attachments, selection;
+                editSelection : function ( prop, shortcode ) {
+                        var defaultPostId = wp.media[ prop ].defaults.id,
+                                attachments, selection;
 
-                                // Bail if we didn't match the shortcode or all of the content.
-                                if ( ! shortcode || shortcode.content !== content ) {
-                                        return;
-                                }
+                        // Ignore the rest of the match object.
+                        shortcode = shortcode.shortcode;
 
-                                // Ignore the rest of the match object.
-                                shortcode = shortcode.shortcode;
+                        if ( _.isUndefined( shortcode.get('id') ) && ! _.isUndefined( defaultPostId ) ) {
+                                shortcode.set( 'id', defaultPostId );
+                        }
 
-                                if ( _.isUndefined( shortcode.get('id') ) && ! _.isUndefined( defaultPostId ) ) {
-                                        shortcode.set( 'id', defaultPostId );
-                                }
+                        attachments = wp.media[ prop ].attachments( shortcode );
 
-                                attachments = wp.media.gallery.attachments( shortcode );
+                        selection = new wp.media.model.Selection( attachments.models, {
+                                props:    attachments.props.toJSON(),
+                                multiple: true
+                        });
 
-                                selection = new wp.media.model.Selection( attachments.models, {
-                                        props:    attachments.props.toJSON(),
-                                        multiple: true
-                                });
+                        selection[ prop ] = attachments[ prop ];
 
-                                selection.gallery = attachments.gallery;
+                        // Fetch the query's attachments, and then break ties from the
+                        // query to allow for sorting.
+                        selection.more().done( function() {
+                                // Break ties with the query.
+                                selection.props.set({ query: false });
+                                selection.unmirror();
+                                selection.props.unset('orderby');
+                        });
 
-                                // Fetch the query's attachments, and then break ties from the
-                                // query to allow for sorting.
-                                selection.more().done( function() {
-                                        // Break ties with the query.
-                                        selection.props.set({ query: false });
-                                        selection.unmirror();
-                                        selection.props.unset('orderby');
-                                });
+                        return selection;
+                },
 
-                                // Destroy the previous gallery frame.
-                                if ( this.frame ) {
-                                        this.frame.dispose();
-                                }
+                cacheShortcode : function ( prop, attachments, shortcode ) {
+                        // Use a cloned version of the playlist.
+                        var clone = new wp.media.model.Attachments( attachments.models, {
+                                props: attachments.props.toJSON()
+                        });
+                        clone[ prop ] = attachments[ prop ];
+                        cache[ shortcode.string() ] = clone;
 
-                                // Store the current gallery frame.
-                                this.frame = wp.media({
-                                        frame:     'post',
-                                        state:     'gallery-edit',
-                                        title:     wp.media.view.l10n.editGalleryTitle,
-                                        editing:   true,
-                                        multiple:  true,
-                                        selection: selection
-                                }).open();
+                        return shortcode;
+                },
 
-                                return this.frame;
+                getEditFrame : function ( args ) {
+                        // Destroy the previous gallery frame.
+                        if ( this.frame ) {
+                                this.frame.dispose();
                         }
-                };
-        }());
 
+                        // Store the current gallery frame.
+                        this.frame = wp.media( _.extend( {
+                                frame:     'post',
+                                editing:   true,
+                                multiple:  true,
+                        }, args ) ).open();
+
+                        return this.frame;
+                },
+
+                instance : function ( prop, args ) {
+                        return {
+                                attachments: this.attachments( prop, args.type ),
+                                shortcode: function( attachments ) {
+                                        var shortcode = new wp.shortcode({
+                                                tag:    prop,
+                                                attrs:  wp.media.collection.shortcodeAttrs( prop, attachments ),
+                                                type:   'single'
+                                        });
+
+                                        return wp.media.collection.cacheShortcode( prop, attachments, shortcode );
+                                },
+                                edit: function( content ) {
+                                        var shortcode = wp.shortcode.next( prop, content );
+
+                                        // Bail if we didn't match the shortcode or all of the content.
+                                        if ( ! shortcode || shortcode.content !== content ) {
+                                                return;
+                                        }
+
+                                        return wp.media.collection.getEditFrame( {
+                                                title:          args.title,
+                                                state:          prop + '-edit',
+                                                selection:      wp.media.collection.editSelection( prop, shortcode )
+                                        } );
+                                }
+                        };
+                }
+        };
+
+        wp.media.gallery = (function() {
+                var gallery = {
+                        defaults : {
+                                itemtag:    'dl',
+                                icontag:    'dt',
+                                captiontag: 'dd',
+                                columns:    '3',
+                                link:       'post',
+                                size:       'thumbnail',
+                                order: 'ASC',
+                                id: wp.media.view.settings.post.id,
+                                orderby : 'menu_order ID'
+                        }
+                };
+
+                return _.extend(gallery, wp.media.collection.instance( 'gallery', {
+                        type : 'image',
+                        title : wp.media.view.l10n.editGalleryTitle
+                }));
+        }());
+
+        wp.media.playlist = (function() {
+                var playlist = {
+                        defaults : {
+                                id:         wp.media.view.settings.post.id,
+                                style:          'light',
+                                tracklist:      true,
+                                tracknumbers: true
+                        }
+                };
+
+                return _.extend(playlist, wp.media.collection.instance( 'playlist', {
+                        type : 'audio',
+                        title : wp.media.view.l10n.editPlaylistTitle
+                }));
+        }());
+
+        wp.media['video-playlist'] = (function() {
+                var playlist = {
+                        defaults : {
+                                id:         wp.media.view.settings.post.id,
+                                style:          'dark',
+                                tracklist:      false,
+                                tracknumbers: false
+                        }
+                };
+
+                return _.extend(playlist, wp.media.collection.instance( 'video-playlist', {
+                        type : 'video',
+                        title : wp.media.view.l10n.editVideoPlaylistTitle
+                }));
+        }());
+
         /**
          * wp.media.featuredImage
          * @namespace
@@ -725 +742 @@
                                 this.insert( wp.media.gallery.shortcode( selection ).string() );
                         }, this );
 
+                        workflow.state('playlist-edit').on( 'update', function( selection ) {
+                                this.insert( wp.media.playlist.shortcode( selection ).string() );
+                        }, this );
+
+                        workflow.state('video-playlist-edit').on( 'update', function( selection ) {
+                                this.insert( wp.media['video-playlist'].shortcode( selection ).string() );
+                        }, this );
+
                         workflow.state('embed').on( 'select', function() {
                                 /**
                                  * @this wp.media.editor
@@ -964 +989 @@
                                 if ( elem.hasClass( 'gallery' ) ) {
                                         options.state = 'gallery';
                                         options.title = wp.media.view.l10n.createGalleryTitle;
+                                } else if ( elem.hasClass( 'playlist' ) ) {
+                                        options.state = 'playlist';
+                                        options.title = wp.media.view.l10n.createPlaylistTitle;
+                                } else if ( elem.hasClass( 'video-playlist' ) ) {
+                                        options.state = 'video-playlist';
+                                        options.title = wp.media.view.l10n.createVideoPlaylistTitle;
                                 }
 
                                 wp.media.editor.open( editor, options );

src/wp-includes/js/media-views.js

@@ -460 +460 @@
                                 return;
                         }
 
+                        console.log( this );
+
                         view.set( this.id, menuItem );
                 }
         });
@@ -752 +754 @@
         });
 
         /**
-         * wp.media.controller.GalleryEdit
-         *
-         * @constructor
-         * @augments wp.media.controller.Library
-         * @augments wp.media.controller.State
-         * @augments Backbone.Model
-         */
-        media.controller.GalleryEdit = media.controller.Library.extend({
-                defaults: {
-                        id:         'gallery-edit',
-                        multiple:   false,
-                        describe:   true,
-                        edge:       199,
-                        editing:    false,
-                        sortable:   true,
-                        searchable: false,
-                        toolbar:    'gallery-edit',
-                        content:    'browse',
-                        title:      l10n.editGalleryTitle,
-                        priority:   60,
-                        dragInfo:   true,
-
-                        // Don't sync the selection, as the Edit Gallery library
-                        // *is* the selection.
-                        syncSelection: false
-                },
-
-                initialize: function() {
-                        // If we haven't been provided a `library`, create a `Selection`.
-                        if ( ! this.get('library') ) {
-                                this.set( 'library', new media.model.Selection() );
-                        }
-
-                        // The single `Attachment` view to be used in the `Attachments` view.
-                        if ( ! this.get('AttachmentView') ) {
-                                this.set( 'AttachmentView', media.view.Attachment.EditLibrary );
-                        }
-                        /**
-                         * call 'initialize' directly on the parent class
-                         */
-                        media.controller.Library.prototype.initialize.apply( this, arguments );
-                },
-
-                activate: function() {
-                        var library = this.get('library');
-
-                        // Limit the library to images only.
-                        library.props.set( 'type', 'image' );
-
-                        // Watch for uploaded attachments.
-                        this.get('library').observe( wp.Uploader.queue );
-
-                        this.frame.on( 'content:render:browse', this.gallerySettings, this );
-                        /**
-                         * call 'activate' directly on the parent class
-                         */
-                        media.controller.Library.prototype.activate.apply( this, arguments );
-                },
-
-                deactivate: function() {
-                        // Stop watching for uploaded attachments.
-                        this.get('library').unobserve( wp.Uploader.queue );
-
-                        this.frame.off( 'content:render:browse', this.gallerySettings, this );
-                        /**
-                         * call 'deactivate' directly on the parent class
-                         */
-                        media.controller.Library.prototype.deactivate.apply( this, arguments );
-                },
-
-                /**
-                 * @param {Object} browser
-                 */
-                gallerySettings: function( browser ) {
-                        var library = this.get('library');
-
-                        if ( ! library || ! browser ) {
-                                return;
-                        }
-
-                        library.gallery = library.gallery || new Backbone.Model();
-
-                        browser.sidebar.set({
-                                gallery: new media.view.Settings.Gallery({
-                                        controller: this,
-                                        model:      library.gallery,
-                                        priority:   40
-                                })
-                        });
-
-                        browser.toolbar.set( 'reverse', {
-                                text:     l10n.reverseOrder,
-                                priority: 80,
-
-                                click: function() {
-                                        library.reset( library.toArray().reverse() );
-                                }
-                        });
-                }
-        });
-
-        /**
-         * wp.media.controller.GalleryAdd
-         *
-         * @constructor
-         * @augments wp.media.controller.Library
-         * @augments wp.media.controller.State
-         * @augments Backbone.Model
-         */
-        media.controller.GalleryAdd = media.controller.Library.extend({
-                defaults: _.defaults({
-                        id:           'gallery-library',
-                        filterable:   'uploaded',
-                        multiple:     'add',
-                        menu:         'gallery',
-                        toolbar:      'gallery-add',
-                        title:        l10n.addToGalleryTitle,
-                        priority:     100,
-
-                        // Don't sync the selection, as the Edit Gallery library
-                        // *is* the selection.
-                        syncSelection: false
-                }, media.controller.Library.prototype.defaults ),
-
-                /**
-                 * If we haven't been provided a `library`, create a `Selection`.
-                 */
-                initialize: function() {
-                        if ( ! this.get('library') ) {
-                                this.set( 'library', media.query({ type: 'image' }) );
-                        }
-                        /**
-                         * call 'initialize' directly on the parent class
-                         */
-                        media.controller.Library.prototype.initialize.apply( this, arguments );
-                },
-
-                activate: function() {
-                        var library = this.get('library'),
-                                edit    = this.frame.state('gallery-edit').get('library');
-
-                        if ( this.editLibrary && this.editLibrary !== edit )
-                                library.unobserve( this.editLibrary );
-
-                        // Accepts attachments that exist in the original library and
-                        // that do not exist in gallery's library.
-                        library.validator = function( attachment ) {
-                                return !! this.mirroring.get( attachment.cid )
-                                        && ! edit.get( attachment.cid )
-                                        /**
-                                         * call 'validator' directly on wp.media.model.Selection
-                                         */
-                                        && media.model.Selection.prototype.validator.apply( this, arguments );
-                        };
-
-                        // Reset the library to ensure that all attachments are re-added
-                        // to the collection. Do so silently, as calling `observe` will
-                        // trigger the `reset` event.
-                        library.reset( library.mirroring.models, { silent: true });
-                        library.observe( edit );
-                        this.editLibrary = edit;
-                        /**
-                         * call 'activate' directly on the parent class
-                         */
-                        media.controller.Library.prototype.activate.apply( this, arguments );
-                }
-        });
-
-        /**
          * wp.media.controller.FeaturedImage
          *
          * @constructor
@@ -1005 +838 @@
                 }
         });
 
+        media.controller.CollectionEdit = function ( prop, args ) {
+                return media.controller.Library.extend({
+                        defaults : _.defaults(args.defaults || {}, {
+                                id:         prop + '-edit',
+                                toolbar:    prop + '-edit',
+                                multiple:   false,
+                                describe:   true,
+                                edge:       199,
+                                editing:    false,
+                                sortable:   true,
+                                searchable: false,
+                                content:    'browse',
+                                priority:   60,
+                                dragInfo:   true,
+
+                                // Don't sync the selection, as the Edit {Collection} library
+                                // *is* the selection.
+                                syncSelection: false
+                        }),
+
+                        initialize: function() {
+                                // If we haven't been provided a `library`, create a `Selection`.
+                                if ( ! this.get('library') ) {
+                                        this.set( 'library', new media.model.Selection() );
+                                }
+                                // The single `Attachment` view to be used in the `Attachments` view.
+                                if ( ! this.get('AttachmentView') ) {
+                                        this.set( 'AttachmentView', media.view.Attachment.EditLibrary );
+                                }
+                                media.controller.Library.prototype.initialize.apply( this, arguments );
+                        },
+
+                        activate: function() {
+                                var library = this.get('library');
+
+                                // Limit the library to images only.
+                                library.props.set( 'type', args.type );
+
+                                // Watch for uploaded attachments.
+                                this.get('library').observe( wp.Uploader.queue );
+
+                                this.frame.on( 'content:render:browse', this.settings, this );
+
+                                media.controller.Library.prototype.activate.apply( this, arguments );
+                        },
+
+                        deactivate: function() {
+                                // Stop watching for uploaded attachments.
+                                this.get('library').unobserve( wp.Uploader.queue );
+
+                                this.frame.off( 'content:render:browse', this.settings, this );
+
+                                media.controller.Library.prototype.deactivate.apply( this, arguments );
+                        },
+
+                        settings: function( browser ) {
+                                var library = this.get('library'), obj = {};
+
+                                if ( ! library || ! browser ) {
+                                        return;
+                                }
+
+                                library[ prop ] = library[ prop ] || new Backbone.Model();
+
+                                obj[ prop ] = new media.view.Settings[ args.settings ]({
+                                        controller: this,
+                                        model:      library[ prop ],
+                                        priority:   40
+                                });
+
+                                browser.sidebar.set( obj );
+
+                                if ( args.dragInfoText ) {
+                                        browser.toolbar.set( 'dragInfo', new media.View({
+                                                el: $( '<div class="instructions">' + args.dragInfoText + '</div>' )[0],
+                                                priority: -40
+                                        }) );
+                                }
+
+                                browser.toolbar.set( 'reverse', {
+                                        text:     l10n.reverseOrder,
+                                        priority: 80,
+
+                                        click: function() {
+                                                library.reset( library.toArray().reverse() );
+                                        }
+                                });
+                        }
+                });
+        };
+
+        media.controller.CollectionAdd = function ( prop, args ) {
+                return media.controller.Library.extend({
+                        defaults: _.defaults({
+                                id:           prop + '-library',
+                                filterable:   'uploaded',
+                                multiple:     'add',
+                                menu:         prop,
+                                toolbar:      prop + '-add',
+                                priority:     100,
+                                syncSelection: false
+                        }, args.defaults || {}, media.controller.Library.prototype.defaults ),
+                        initialize: function() {
+                                // If we haven't been provided a `library`, create a `Selection`.
+                                if ( ! this.get('library') ) {
+                                        this.set( 'library', media.query({ type: args.type }) );
+                                }
+                                media.controller.Library.prototype.initialize.apply( this, arguments );
+                        },
+
+                        activate: function() {
+                                var library = this.get('library'),
+                                        edit    = this.frame.state(prop + '-edit').get('library');
+
+                                if ( this.editLibrary && this.editLibrary !== edit ) {
+                                        library.unobserve( this.editLibrary );
+                                }
+
+                                // Accepts attachments that exist in the original library and
+                                // that do not exist in gallery's library.
+                                library.validator = function( attachment ) {
+                                        return !! this.mirroring.get( attachment.cid ) && ! edit.get( attachment.cid ) && media.model.Selection.prototype.validator.apply( this, arguments );
+                                };
+
+                                // Reset the library to ensure that all attachments are re-added
+                                // to the collection. Do so silently, as calling `observe` will
+                                // trigger the `reset` event.
+                                library.reset( library.mirroring.models, { silent: true });
+                                library.observe( edit );
+                                this.editLibrary = edit;
+
+                                media.controller.Library.prototype.activate.apply( this, arguments );
+                        }
+                });
+        };
+
+        // wp.media.controller.GalleryEdit
+        // -------------------------------
+        media.controller.GalleryEdit = media.controller.CollectionEdit( 'gallery', {
+                type: 'image',
+                settings: 'Gallery',
+                defaults: {
+                        title: l10n.editGalleryTitle
+                }
+        });
+
+        // wp.media.controller.GalleryAdd
+        // ---------------------------------
+        media.controller.GalleryAdd = media.controller.CollectionAdd( 'gallery', {
+                type: 'image',
+                defaults: {
+                        title: l10n.addToGalleryTitle
+                }
+        });
+
+        // wp.media.controller.PlaylistEdit
+        // -------------------------------
+        media.controller.PlaylistEdit = media.controller.CollectionEdit( 'playlist', {
+                type: 'audio',
+                settings: 'Playlist',
+                dragInfoText: l10n.playlistDragInfo,
+                defaults: {
+                        title: l10n.editPlaylistTitle,
+                        dragInfo : false
+                }
+        });
+
+        // wp.media.controller.PlaylistAdd
+        // ---------------------------------
+        media.controller.PlaylistAdd = media.controller.CollectionAdd( 'playlist', {
+                type: 'audio',
+                defaults: {
+                        title: l10n.addToPlaylistTitle
+                }
+        });
+
+        // wp.media.controller.VideoPlaylistEdit
+        // -------------------------------
+        media.controller.VideoPlaylistEdit = media.controller.CollectionEdit( 'video-playlist', {
+                type: 'video',
+                settings: 'Playlist',
+                dragInfoText: l10n.videoPlaylistDragInfo,
+                defaults: {
+                        title: l10n.editVideoPlaylistTitle,
+                        dragInfo : false
+                }
+        });
+
+        // wp.media.controller.VideoPlaylistAdd
+        // ---------------------------------
+        media.controller.VideoPlaylistAdd = media.controller.CollectionAdd( 'video-playlist', {
+                type: 'video',
+                defaults: {
+                        title: l10n.addToVideoPlaylistTitle
+                }
+        });
+
         /**
          * wp.media.controller.ReplaceImage
          *
@@ -1758 +1788 @@
                                         menu:    'gallery'
                                 }),
 
-                                new media.controller.GalleryAdd()
+                                new media.controller.GalleryAdd(),
+
+                                new media.controller.Library({
+                                        id:         'playlist',
+                                        title:      l10n.createPlaylistTitle,
+                                        priority:   60,
+                                        toolbar:    'main-playlist',
+                                        filterable: 'uploaded',
+                                        multiple:   'add',
+                                        editable:   false,
+
+                                        library:  media.query( _.defaults({
+                                                type: 'audio'
+                                        }, options.library ) )
+                                }),
+
+                                // Playlist states.
+                                new media.controller.PlaylistEdit({
+                                        library: options.selection,
+                                        editing: options.editing,
+                                        menu:    'playlist'
+                                }),
+
+                                new media.controller.PlaylistAdd(),
+
+                                new media.controller.Library({
+                                        id:         'video-playlist',
+                                        title:      l10n.createVideoPlaylistTitle,
+                                        priority:   60,
+                                        toolbar:    'main-video-playlist',
+                                        filterable: 'uploaded',
+                                        multiple:   'add',
+                                        editable:   false,
+
+                                        library:  media.query( _.defaults({
+                                                type: 'video'
+                                        }, options.library ) )
+                                }),
+
+                                // Video Playlist states.
+                                new media.controller.VideoPlaylistEdit({
+                                        library: options.selection,
+                                        editing: options.editing,
+                                        menu:    'video-playlist'
+                                }),
+
+                                new media.controller.VideoPlaylistAdd()
                         ]);
 
 
@@ -1773 +1849 @@
                          */
                         media.view.MediaFrame.Select.prototype.bindHandlers.apply( this, arguments );
                         this.on( 'menu:create:gallery', this.createMenu, this );
+                        this.on( 'menu:create:playlist', this.createMenu, this );
+                        this.on( 'menu:create:video-playlist', this.createMenu, this );
                         this.on( 'toolbar:create:main-insert', this.createToolbar, this );
-                        this.on( 'toolbar:create:main-gallery', this.createToolbar, this );
+                        this.on( 'toolbar:create:main-gallery', this.createToolbar, this );
+                        this.on( 'toolbar:create:main-playlist', this.createToolbar, this );
+                        this.on( 'toolbar:create:main-video-playlist', this.createToolbar, this );
                         this.on( 'toolbar:create:featured-image', this.featuredImageToolbar, this );
                         this.on( 'toolbar:create:main-embed', this.mainEmbedToolbar, this );
 
@@ -1781 +1861 @@
                         var handlers = {
                                 menu: {
                                         'default': 'mainMenu',
-                                        'gallery': 'galleryMenu'
+                                        'gallery': 'galleryMenu',
+                                        'playlist': 'playlistMenu',
+                                        'video-playlist': 'videoPlaylistMenu'
                                 },
 
                                 content: {
@@ -1793 +1875 @@
                                         'main-insert':      'mainInsertToolbar',
                                         'main-gallery':     'mainGalleryToolbar',
                                         'gallery-edit':     'galleryEditToolbar',
-                                        'gallery-add':      'galleryAddToolbar'
+                                        'gallery-add':      'galleryAddToolbar',
+                                        'main-playlist':        'mainPlaylistToolbar',
+                                        'playlist-edit':        'playlistEditToolbar',
+                                        'playlist-add':         'playlistAddToolbar',
+                                        'main-video-playlist': 'mainVideoPlaylistToolbar',
+                                        'video-playlist-edit': 'videoPlaylistEditToolbar',
+                                        'video-playlist-add': 'videoPlaylistAddToolbar'
                                 }
                         };
 
@@ -1842 +1930 @@
                         });
                 },
 
+                playlistMenu: function( view ) {
+                        var lastState = this.lastState(),
+                                previous = lastState && lastState.id,
+                                frame = this;
+
+                        view.set({
+                                cancel: {
+                                        text:     l10n.cancelPlaylistTitle,
+                                        priority: 20,
+                                        click:    function() {
+                                                if ( previous )
+                                                        frame.setState( previous );
+                                                else
+                                                        frame.close();
+                                        }
+                                },
+                                separateCancel: new media.View({
+                                        className: 'separator',
+                                        priority: 60
+                                })
+                        });
+                },
+
+                videoPlaylistMenu: function( view ) {
+                        var lastState = this.lastState(),
+                                previous = lastState && lastState.id,
+                                frame = this;
+
+                        view.set({
+                                cancel: {
+                                        text:     l10n.cancelVideoPlaylistTitle,
+                                        priority: 20,
+                                        click:    function() {
+                                                if ( previous )
+                                                        frame.setState( previous );
+                                                else
+                                                        frame.close();
+                                        }
+                                },
+                                separateCancel: new media.View({
+                                        className: 'separator',
+                                        priority: 80
+                                })
+                        });
+                },
+
                 // Content
                 embedContent: function() {
                         var view = new media.view.Embed({
@@ -1960 +2094 @@
                         });
                 },
 
+                mainPlaylistToolbar: function( view ) {
+                        var controller = this;
+
+                        this.selectionStatusToolbar( view );
+
+                        view.set( 'playlist', {
+                                style:    'primary',
+                                text:     l10n.createNewPlaylist,
+                                priority: 100,
+                                requires: { selection: true },
+
+                                click: function() {
+                                        var selection = controller.state().get('selection'),
+                                                edit = controller.state('playlist-edit'),
+                                                models = selection.where({ type: 'audio' });
+
+                                        edit.set( 'library', new media.model.Selection( models, {
+                                                props:    selection.props.toJSON(),
+                                                multiple: true
+                                        }) );
+
+                                        this.controller.setState('playlist-edit');
+                                }
+                        });
+                },
+
+                mainVideoPlaylistToolbar: function( view ) {
+                        var controller = this;
+
+                        this.selectionStatusToolbar( view );
+
+                        view.set( 'video-playlist', {
+                                style:    'primary',
+                                text:     l10n.createNewVideoPlaylist,
+                                priority: 100,
+                                requires: { selection: true },
+
+                                click: function() {
+                                        var selection = controller.state().get('selection'),
+                                                edit = controller.state('video-playlist-edit'),
+                                                models = selection.where({ type: 'video' });
+
+                                        edit.set( 'library', new media.model.Selection( models, {
+                                                props:    selection.props.toJSON(),
+                                                multiple: true
+                                        }) );
+
+                                        this.controller.setState('video-playlist-edit');
+                                }
+                        });
+                },
+
                 featuredImageToolbar: function( toolbar ) {
                         this.createSelectToolbar( toolbar, {
                                 text:  l10n.setFeaturedImage,
@@ -2028 +2214 @@
                                         }
                                 }
                         }) );
+                },
+
+                playlistEditToolbar: function() {
+                        var editing = this.state().get('editing');
+                        this.toolbar.set( new media.view.Toolbar({
+                                controller: this,
+                                items: {
+                                        insert: {
+                                                style:    'primary',
+                                                text:     editing ? l10n.updatePlaylist : l10n.insertPlaylist,
+                                                priority: 80,
+                                                requires: { library: true },
+
+                                                /**
+                                                 * @fires wp.media.controller.State#update
+                                                 */
+                                                click: function() {
+                                                        var controller = this.controller,
+                                                                state = controller.state();
+
+                                                        controller.close();
+                                                        state.trigger( 'update', state.get('library') );
+
+                                                        // Restore and reset the default state.
+                                                        controller.setState( controller.options.state );
+                                                        controller.reset();
+                                                }
+                                        }
+                                }
+                        }) );
+                },
+
+                playlistAddToolbar: function() {
+                        this.toolbar.set( new media.view.Toolbar({
+                                controller: this,
+                                items: {
+                                        insert: {
+                                                style:    'primary',
+                                                text:     l10n.addToPlaylist,
+                                                priority: 80,
+                                                requires: { selection: true },
+
+                                                /**
+                                                 * @fires wp.media.controller.State#reset
+                                                 */
+                                                click: function() {
+                                                        var controller = this.controller,
+                                                                state = controller.state(),
+                                                                edit = controller.state('playlist-edit');
+
+                                                        edit.get('library').add( state.get('selection').models );
+                                                        state.trigger('reset');
+                                                        controller.setState('playlist-edit');
+                                                }
+                                        }
+                                }
+                        }) );
+                },
+
+                videoPlaylistEditToolbar: function() {
+                        var editing = this.state().get('editing');
+                        this.toolbar.set( new media.view.Toolbar({
+                                controller: this,
+                                items: {
+                                        insert: {
+                                                style:    'primary',
+                                                text:     editing ? l10n.updateVideoPlaylist : l10n.insertVideoPlaylist,
+                                                priority: 140,
+                                                requires: { library: true },
+
+                                                click: function() {
+                                                        var controller = this.controller,
+                                                                state = controller.state();
+
+                                                        controller.close();
+                                                        state.trigger( 'update', state.get('library') );
+
+                                                        // Restore and reset the default state.
+                                                        controller.setState( controller.options.state );
+                                                        controller.reset();
+                                                }
+                                        }
+                                }
+                        }) );
+                },
+
+                videoPlaylistAddToolbar: function() {
+                        this.toolbar.set( new media.view.Toolbar({
+                                controller: this,
+                                items: {
+                                        insert: {
+                                                style:    'primary',
+                                                text:     l10n.addToVideoPlaylist,
+                                                priority: 140,
+                                                requires: { selection: true },
+
+                                                click: function() {
+                                                        var controller = this.controller,
+                                                                state = controller.state(),
+                                                                edit = controller.state('video-playlist-edit');
+
+                                                        edit.get('library').add( state.get('selection').models );
+                                                        state.trigger('reset');
+                                                        controller.setState('video-playlist-edit');
+                                                }
+                                        }
+                                }
+                        }) );
                 }
-
         });
 
         media.view.MediaFrame.ImageDetails = media.view.MediaFrame.Select.extend({
@@ -4849 +5142 @@
         });
 
         /**
+         * wp.media.view.Settings.Gallery
+         */
+        media.view.Settings.Playlist = media.view.Settings.extend({
+                className: 'playlist-settings',
+                template:  media.template('playlist-settings')
+        });
+
+        /**
          * wp.media.view.Attachment.Details
          *
          * @constructor

src/wp-includes/js/mediaelement/wp-mediaelement.css

@@ -13 +13 @@
 .me-cannotplay {
         width: auto !important;
 }
+
+.wp-playlist {
+        border: 1px solid #ccc;
+        padding: 10px;
+        margin: 12px 0 18px;
+        font-size: 85%;
+}
+
+.wp-playlist .mejs-container {
+        margin: 0;
+}
+
+.wp-playlist .mejs-controls .mejs-button button {
+        outline: 0;
+}
+
+.wp-playlist-audio {
+
+}
+
+.wp-playlist-video {
+
+}
+
+.wp-playlist-light {
+        background: #fff;
+}
+
+.wp-playlist-dark {
+        color: #fff;
+        background: #000;
+}
+
+.wp-playlist-current-item {
+        overflow: hidden;
+        margin-bottom: 10px;
+}
+
+.wp-playlist-current-item img {
+        float: left;
+        max-width: 60px;
+        height: auto;
+        margin-right: 10px;
+}
+
+.wp-playlist-caption {
+}
+
+.wp-caption-meta {
+        display: block;
+}
+
+.wp-caption-title {
+        font-size: 100%;
+}
+
+.wp-caption-album {
+        font-style: italic;
+}
+
+.wp-caption-artist {
+        font-size: 80%;
+        text-transform: uppercase;
+}
+
+.wp-caption-by {
+        font-size: 65%;
+        font-weight: bold;
+}
+
+.wp-playlist-item-length {
+        position: absolute;
+        right: 0;
+        top: 0;
+}
+
+.wp-playlist-tracks {
+        margin-top: 10px;
+        border-top: 1px solid #ccc;
+}
+
+.wp-playlist-item {
+        position: relative;
+        cursor: pointer;
+        border-bottom: 1px solid #ccc;
+}
+ No newline at end of file

src/wp-includes/js/plupload/handlers.js

@@ -22 +22 @@
                 .appendTo( jQuery('#media-items' ) );
 
         // Disable submit
-        jQuery('#insert-gallery').prop('disabled', true);
+        jQuery('#insert-gallery, #insert-playlist').prop('disabled', true);
 }
 
 function uploadStart() {
@@ -47 +47 @@
 
         if ( max > hundredmb && file.size > hundredmb ) {
                 setTimeout(function(){
-                        
+
                         if ( file.status < 3 && file.loaded === 0 ) { // not uploading
                                 wpFileError(file, pluploadL10n.big_upload_failed.replace('%1$s', '<a class="uploader-html" href="#">').replace('%2$s', '</a>'));
                                 up.stop(); // stops the whole queue
@@ -64 +64 @@
         // Just one file, no need for collapsible part
         if ( items.length == 1 ) {
                 items.addClass('open').find('.slidetoggle').show();
-                jQuery('.insert-gallery').hide();
+                jQuery('.insert-gallery, .insert-playlist').hide();
         } else if ( items.length > 1 ) {
                 items.removeClass('open');
-                // Only show Gallery button when there are at least two files.
-                jQuery('.insert-gallery').show();
+                // Only show Gallery/Playlist buttons when there are at least two files.
+                jQuery('.insert-gallery, .insert-playlist').show();
         }
 
         // Only show Save buttons when there is at least one file.
@@ -171 +171 @@
                         success: function( ){
                                 var type,
                                         item = jQuery('#media-item-' + fileObj.id);
-                                
+
                                 if ( type = jQuery('#type-of-' + fileObj.id).val() )
                                         jQuery('#' + type + '-counter').text(jQuery('#' + type + '-counter').text()-0+1);
 
@@ -257 +257 @@
 }
 
 function uploadComplete() {
-        jQuery('#insert-gallery').prop('disabled', false);
+        jQuery('#insert-gallery, #insert-playlist').prop('disabled', false);
 }
 
 function switchUploader(s) {

src/wp-includes/js/swfupload/handlers.js

@@ -25 +25 @@
         jQuery('.progress', '#media-item-' + fileObj.id).show();
 
         // Disable submit and enable cancel
-        jQuery('#insert-gallery').prop('disabled', true);
+        jQuery('#insert-gallery, #insert-playlist').prop('disabled', true);
         jQuery('#cancel-upload').prop('disabled', false);
 }
 
@@ -32 +32 @@
 function uploadStart(fileObj) {
         try {
                 if ( typeof topWin.tb_remove != 'undefined' )
-                        topWin.jQuery('#TB_overlay').unbind('click', topWin.tb_remove); 
+                        topWin.jQuery('#TB_overlay').unbind('click', topWin.tb_remove);
         } catch(e){}
 
         return true;
@@ -212 +212 @@
         else
                 jQuery('.savebutton').hide();
 
-        // Only show Gallery button when there are at least two files.
-        if ( items.length > 1 )
-                jQuery('.insert-gallery').show();
-        else
-                jQuery('.insert-gallery').hide();
+        // Only show Gallery/Playlist buttons when there are at least two files.
+        if ( items.length > 1 ) {
+                jQuery('.insert-gallery, .insert-playlist').show();
+        } else {
+                jQuery('.insert-gallery, .insert-playlist').hide();
+        }
 }
 
 function uploadSuccess(fileObj, serverData) {
@@ -238 +239 @@
         // If no more uploads queued, enable the submit button
         if ( swfu.getStats().files_queued == 0 ) {
                 jQuery('#cancel-upload').prop('disabled', true);
-                jQuery('#insert-gallery').prop('disabled', false);
+                jQuery('#insert-gallery, #insert-playlist').prop('disabled', false);
         }
 }
 

src/wp-includes/js/tinymce/langs/wp-langs-en.js

@@ -478 +478 @@
                 add_audio: "Add Audio",
                 editgallery: "Edit Gallery",
                 delgallery: "Delete Gallery",
+                editplaylist: "Edit Playlist",
+                delplaylist: "Delete Playlist",
                 wp_fullscreen_desc: "Distraction Free Writing mode (Alt + Shift + W)"
         });
 

src/wp-includes/js/tinymce/skins/wordpress/wp-content.css

@@ -108 +108 @@
     border-top: 3px dotted #bbb;
 }
 
-.mce-content-body img.wp-gallery {
+.mce-content-body img.wp-gallery,
+.mce-content-body img.wp-playlist,
+.mce-content-body img.wp-video-playlist{
         border: 1px dashed #888;
         background: #f2f2f2 url("images/gallery.png") no-repeat scroll center center;
         width: 99%;
@@ -117 +119 @@
         cursor: pointer;
 }
 
-.mce-content-body img.wp-gallery:hover {
+.mce-content-body img.wp-playlist {
+        background: #f2f2f2;
+}
+
+.mce-content-body img.wp-video-playlist {
+        background-image: url("images/embedded.png");
+}
+
+.mce-content-body img.wp-gallery:hover, .mce-content-body img.wp-playlist:hover {
         background-color: #ededed;
         border-style: solid;
 }
 
-.mce-content-body img.wp-gallery.wp-gallery-selected {
+.mce-content-body img.wp-gallery.wp-gallery-selected, .mce-content-body img.wp-playlist.wp-playlist-selected {
         background-color: #d8d8d8;
         border-style: solid;
 }

src/wp-includes/media-template.php

@@ -411 +411 @@
                 </label>
         </script>
 
+        <script type="text/html" id="tmpl-playlist-settings">
+                <h3><?php _e('Playlist Settings'); ?></h3>
+
+                <label class="setting">
+                        <span><?php _e( 'Random Order' ); ?></span>
+                        <input type="checkbox" data-setting="_orderbyRandom" />
+                </label>
+
+                <label class="setting">
+                        <span><?php _e('Style'); ?></span>
+                        <select class="style" data-setting="style">
+                                <option value="light">
+                                        <?php esc_attr_e('Light'); ?>
+                                </option>
+                                <option value="dark">
+                                        <?php esc_attr_e('Dark'); ?>
+                                </option>
+                        </select>
+                </label>
+
+                <label class="setting">
+                        <span><?php _e( 'Show Tracklist' ); ?></span>
+                        <input type="checkbox" data-setting="tracklist" />
+                </label>
+
+                <label class="setting">
+                        <span><?php _e( 'Show Track Numbers' ); ?></span>
+                        <input type="checkbox" data-setting="tracknums" />
+                </label>
+
+                <label class="setting">
+                        <span><?php _e( 'Show Images' ); ?></span>
+                        <input type="checkbox" data-setting="images" />
+                </label>
+        </script>
+
         <script type="text/html" id="tmpl-embed-link-settings">
                 <label class="setting">
                         <span><?php _e('Title'); ?></span>

src/wp-includes/media.php

@@ -892 +892 @@
 }
 
 /**
+ * The Playlist shortcode.
+ *
+ * This implements the functionality of the Playlist Shortcode for displaying
+ * WordPress audio or video files on a post.
+ *
+ * @since 3.9.0
+ *
+ * @param array $attr Attributes of the shortcode.
+ * @return string $type Type of playlist. Defaults to audio, video is also supported
+ */
+function wp_get_playlist( $attr, $type ) {
+        $post = get_post();
+
+        if ( ! in_array( $type, array( 'audio', 'video' ) ) ) {
+                return '';
+        }
+
+        static $instance = 0;
+        $instance++;
+
+        if ( ! empty( $attr['ids'] ) ) {
+                // 'ids' is explicitly ordered, unless you specify otherwise.
+                if ( empty( $attr['orderby'] ) )
+                        $attr['orderby'] = 'post__in';
+                $attr['include'] = $attr['ids'];
+        }
+
+        // Allow plugins/themes to override the default gallery template.
+        $output = apply_filters( 'post_playlist', '', $attr, $type );
+        if ( $output != '' )
+                return $output;
+
+        // We're trusting author input, so let's at least make sure it looks like a valid orderby statement
+        if ( isset( $attr['orderby'] ) ) {
+                $attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
+                if ( ! $attr['orderby'] )
+                        unset( $attr['orderby'] );
+        }
+
+        extract( shortcode_atts( array(
+                'order'         => 'ASC',
+                'orderby'       => 'menu_order ID',
+                'id'            => $post ? $post->ID : 0,
+                'include'       => '',
+                'exclude'   => '',
+                'style'         => 'light',
+                'tracklist' => 'audio' === $type,
+                'tracknums' => 'audio' === $type,
+                'images'        => true
+        ), $attr, 'playlist' ) );
+
+        $id = intval( $id );
+        if ( 'RAND' == $order )
+                $orderby = 'none';
+
+        if ( ! empty( $include ) ) {
+                $_attachments = get_posts( array( 'include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => $type, 'order' => $order, 'orderby' => $orderby ) );
+
+                $attachments = array();
+                foreach ( $_attachments as $key => $val ) {
+                        $attachments[$val->ID] = $_attachments[$key];
+                }
+        } elseif ( ! empty( $exclude ) ) {
+                $attachments = get_children( array('post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => $type, 'order' => $order, 'orderby' => $orderby ) );
+        } else {
+                $attachments = get_children( array('post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => $type, 'order' => $order, 'orderby' => $orderby) );
+        }
+
+        if ( empty( $attachments ) )
+                return '';
+
+        if ( is_feed() ) {
+                $output = "\n";
+                foreach ( $attachments as $att_id => $attachment )
+                        $output .= wp_get_attachment_link( $att_id, $size, true ) . "\n";
+
+                return $output;
+        }
+
+        $supports_thumbs = ( current_theme_supports( 'post-thumbnails', "attachment:$type" ) && post_type_supports( "attachment:$type", 'thumbnail' ) ) || $images;
+
+        $data = compact( 'type', 'tracklist', 'tracknums', 'images', 'style' );
+        $tracks = array();
+        foreach ( $attachments as $attachment ) {
+                $url = wp_get_attachment_url( $attachment->ID );
+                $ftype = wp_check_filetype( $url, wp_get_mime_types() );
+                $track = array(
+                        'type' => $type,
+                        'src' => $url,
+                        'type' => $ftype['ext'],
+                        'title' => get_the_title( $attachment->ID ),
+                        'caption' => wptexturize( $attachment->post_excerpt ),
+                        'description' => wptexturize( $attachment->post_content )
+                );
+
+                $meta = wp_get_attachment_metadata( $attachment->ID );
+                if ( ! empty( $meta ) ) {
+                        $track['meta'] = array();
+
+                        $keys = array( 'title', 'artist', 'band', 'album', 'genre', 'year', 'length', 'length_formatted' );
+                        foreach ( $keys as $key ) {
+                                if ( ! empty( $meta[ $key ] ) ) {
+                                        $track['meta'][ $key ] = $meta[ $key ];
+                                }
+                        }
+                }
+
+                if ( $supports_thumbs ) {
+                        $id = get_post_thumbnail_id( $attachment->ID );
+                        if ( ! empty( $id ) ) {
+                                list( $src, $width, $height ) = wp_get_attachment_image_src( $id, 'full' );
+                                $track['image'] = compact( 'src', 'width', 'height' );
+                        }
+                }
+
+                $tracks[] = $track;
+        }
+        $data['tracks'] = $tracks;
+
+        ob_start();
+
+        if ( 1 === $instance ):
+                wp_enqueue_style( 'wp-mediaelement' );
+                wp_enqueue_script( 'wp-playlist' );
+?>
+<script type="text/html" id="tmpl-wp-playlist-current-item">
+        <# if ( data.image ) { #>
+        <img src="{{{ data.image.src }}}"/>
+        <# } #>
+        <# if ( data.meta.title ) { #>
+        <div class="wp-playlist-caption">
+                <span class="wp-caption-meta wp-caption-title">&#8220;{{{ data.meta.title }}}&#8221;</span>
+                <span class="wp-caption-meta wp-caption-album">{{{ data.meta.album }}}</span>
+                <span class="wp-caption-meta wp-caption-artist">{{{ data.meta.artist }}}</span>
+        </div>
+        <# } else { #>
+        <div class="wp-playlist-caption">{{{ data.caption }}}</div>
+        <# } #>
+</script>
+<script type="text/html" id="tmpl-wp-playlist-item">
+        <div class="wp-playlist-item">
+                <# if ( data.meta.title ) { #>
+                <div class="wp-playlist-caption">
+                        {{{ data.index }}}.&nbsp;
+                        <span class="wp-caption-title">&#8220;{{{ data.meta.title }}}&#8221;</span>
+                        <span class="wp-caption-by"><?php _e( 'by' ) ?></span>
+                        <span class="wp-caption-artist">{{{ data.meta.artist }}}</span>
+                </div>
+                <# } else { #>
+                <div class="wp-playlist-caption">{{{ data.index }}}. {{{ data.caption }}}</div>
+                <# } #>
+                <# if ( data.meta.length_formatted ) { #>
+                <div class="wp-playlist-item-length">{{{ data.meta.length_formatted }}}</div>
+                <# } #>
+        </div>
+</script>
+        <?php endif ?>
+<div class="wp-playlist wp-<?php echo $type ?>-playlist wp-playlist-<?php echo $style ?>">
+        <div class="wp-playlist-current-item"></div>
+        <<?php echo $type ?> controls="controls" preload="metadata"></<?php echo $type ?>>
+        <div class="wp-playlist-next"></div>
+        <div class="wp-playlist-prev"></div>
+        <noscript>
+
+        </noscript>
+        <script type="application/json"><?php echo json_encode( $data ) ?></script>
+</div>
+        <?php
+        $output = ob_get_clean();
+
+        return $output;
+}
+
+function wp_playlist_shortcode( $attr ) {
+        return wp_get_playlist( $attr, 'audio' );
+}
+add_shortcode( 'playlist', 'wp_playlist_shortcode' );
+
+function wp_video_playlist_shortcode( $attr ) {
+        return wp_get_playlist( $attr, 'video' );
+}
+add_shortcode( 'video-playlist', 'wp_video_playlist_shortcode' );
+
+/**
  * Provide a No-JS Flash fallback as a last resort for audio / video
  *
  * @since 3.6.0
@@ -1984 +2168 @@
                 'mediaLibraryTitle'  => __( 'Media Library' ),
                 'insertMediaTitle'   => __( 'Insert Media' ),
                 'createNewGallery'   => __( 'Create a new gallery' ),
+                'createNewPlaylist'   => __( 'Create a new playlist' ),
+                'createNewVideoPlaylist'   => __( 'Create a new video playlist' ),
                 'returnToLibrary'    => __( '&#8592; Return to library' ),
                 'allMediaItems'      => __( 'All media items' ),
                 'noItemsFound'       => __( 'No items found.' ),
@@ -2011 +2197 @@
                 // Edit Image
                 'imageDetailsTitle'     => __( 'Image Details' ),
                 'imageReplaceTitle'     => __( 'Replace Image' ),
-                'imageDetailsCancel'     => __( 'Cancel Edit' )
+                'imageDetailsCancel'    => __( 'Cancel Edit' ),
+
+                // Playlist
+                'playlistDragInfo'    => __( 'Drag and drop to reorder tracks.' ),
+                'createPlaylistTitle' => __( 'Create Playlist' ),
+                'editPlaylistTitle'   => __( 'Edit Playlist' ),
+                'cancelPlaylistTitle' => __( '&#8592; Cancel Playlist' ),
+                'insertPlaylist'      => __( 'Insert playlist' ),
+                'updatePlaylist'      => __( 'Update playlist' ),
+                'addToPlaylist'       => __( 'Add to playlist' ),
+                'addToPlaylistTitle'  => __( 'Add to Playlist' ),
+
+                // Video Playlist
+                'videoPlaylistDragInfo'    => __( 'Drag and drop to reorder videos.' ),
+                'createVideoPlaylistTitle' => __( 'Create Video Playlist' ),
+                'editVideoPlaylistTitle'   => __( 'Edit Video Playlist' ),
+                'cancelVideoPlaylistTitle' => __( '&#8592; Cancel Video Playlist' ),
+                'insertVideoPlaylist'      => __( 'Insert Video playlist' ),
+                'updateVideoPlaylist'      => __( 'Update Video playlist' ),
+                'addToVideoPlaylist'       => __( 'Add to Video playlist' ),
+                'addToVideoPlaylistTitle'  => __( 'Add to Video Playlist' ),
         );
 
         $settings = apply_filters( 'media_view_settings', $settings, $post );

src/wp-includes/script-loader.php

@@ -311 +311 @@
                 'pluginPath' => includes_url( 'js/mediaelement/', 'relative' ),
         ) );
 
+        $scripts->add( 'wp-playlist', "/wp-includes/js/mediaelement/wp-playlist.js", array( 'wp-util', 'backbone', 'mediaelement' ), false, 1 );
+
         $scripts->add( 'zxcvbn-async', "/wp-includes/js/zxcvbn-async$suffix.js", array(), '1.0' );
         did_action( 'init' ) && $scripts->localize( 'zxcvbn-async', '_zxcvbnSettings', array(
                 'src' => empty( $guessed_url ) ? includes_url( '/js/zxcvbn.min.js' ) : $scripts->base_url . '/wp-includes/js/zxcvbn.min.js',