Ticket #29841: 29841.4.patch

src/wp-includes/js/mce-view.js

@@ -1 +1 @@
 /* global tinymce */
-/**
+
+/*
+ * The TinyMCE view API.
+ *
  * Note: this API is "experimental" meaning that it will probably change
  * in the next few releases based on feedback from 3.9.0.
  * If you decide to use it, please follow the development closely.
  */
-
-// Ensure the global `wp` object exists.
-window.wp = window.wp || {};
-
 ( function( $ ) {
         'use strict';
 
         var views = {},
                 instances = {},
-                media = wp.media,
-                mediaWindows = [],
-                windowIdx = 0,
-                waitInterval = 50,
-                viewOptions = ['encodedText'];
+                viewOptions = [ 'encodedText' ];
 
-        // Create the `wp.mce` object if necessary.
+        window.wp = window.wp || {};
         wp.mce = wp.mce || {};
 
         /**
-         * wp.mce.View
-         *
-         * A Backbone-like View constructor intended for use when rendering a TinyMCE View. The main difference is
-         * that the TinyMCE View is not tied to a particular DOM node.
-         *
-         * @param {Object} [options={}]
-         */
-        wp.mce.View = function( options ) {
-                options = options || {};
-                this.type = options.type;
-                _.extend( this, _.pick( options, viewOptions ) );
-                this.initialize.apply( this, arguments );
-        };
-
-        _.extend( wp.mce.View.prototype, {
-                initialize: function() {},
-                getHtml: function() {
-                        return '';
-                },
-                loadingPlaceholder: function() {
-                        return '' +
-                                '<div class="loading-placeholder">' +
-                                        '<div class="dashicons dashicons-admin-media"></div>' +
-                                        '<div class="wpview-loading"><ins></ins></div>' +
-                                '</div>';
-                },
-                render: function( force ) {
-                        if ( force || ! this.rendered() ) {
-                                this.unbind();
-
-                                this.setContent(
-                                        '<p class="wpview-selection-before">\u00a0</p>' +
-                                        '<div class="wpview-body" contenteditable="false">' +
-                                                '<div class="toolbar mce-arrow-down">' +
-                                                        ( _.isFunction( views[ this.type ].edit ) ? '<div class="dashicons dashicons-edit edit"></div>' : '' ) +
-                                                        '<div class="dashicons dashicons-no remove"></div>' +
-                                                '</div>' +
-                                                '<div class="wpview-content wpview-type-' + this.type + '">' +
-                                                        ( this.getHtml() || this.loadingPlaceholder() ) +
-                                                '</div>' +
-                                                ( this.overlay ? '<div class="wpview-overlay"></div>' : '' ) +
-                                        '</div>' +
-                                        '<p class="wpview-selection-after">\u00a0</p>',
-                                        'wrap'
-                                );
-
-                                $( this ).trigger( 'ready' );
-
-                                this.rendered( true );
-                        }
-                },
-                unbind: function() {},
-                getEditors: function( callback ) {
-                        var editors = [];
-
-                        _.each( tinymce.editors, function( editor ) {
-                                if ( editor.plugins.wpview ) {
-                                        if ( callback ) {
-                                                callback( editor );
-                                        }
-
-                                        editors.push( editor );
-                                }
-                        }, this );
-
-                        return editors;
-                },
-                getNodes: function( callback ) {
-                        var nodes = [],
-                                self = this;
-
-                        this.getEditors( function( editor ) {
-                                $( editor.getBody() )
-                                .find( '[data-wpview-text="' + self.encodedText + '"]' )
-                                .each( function ( i, node ) {
-                                        if ( callback ) {
-                                                callback( editor, node, $( node ).find( '.wpview-content' ).get( 0 ) );
-                                        }
-
-                                        nodes.push( node );
-                                } );
-                        } );
-
-                        return nodes;
-                },
-                setContent: function( html, option ) {
-                        this.getNodes( function ( editor, node, content ) {
-                                var el = ( option === 'wrap' || option === 'replace' ) ? node : content,
-                                        insert = html;
-
-                                if ( _.isString( insert ) ) {
-                                        insert = editor.dom.createFragment( insert );
-                                }
-
-                                if ( option === 'replace' ) {
-                                        editor.dom.replace( insert, el );
-                                } else {
-                                        el.innerHTML = '';
-                                        el.appendChild( insert );
-                                }
-                        } );
-                },
-                /* jshint scripturl: true */
-                setIframes: function ( head, body ) {
-                        var MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver,
-                                importStyles = this.type === 'video' || this.type === 'audio' || this.type === 'playlist';
-
-                        if ( head || body.indexOf( '<script' ) !== -1 ) {
-                                this.getNodes( function ( editor, node, content ) {
-                                        var dom = editor.dom,
-                                                styles = '',
-                                                bodyClasses = editor.getBody().className || '',
-                                                iframe, iframeDoc, i, resize;
-
-                                        content.innerHTML = '';
-                                        head = head || '';
-
-                                        if ( importStyles ) {
-                                                if ( ! wp.mce.views.sandboxStyles ) {
-                                                        tinymce.each( dom.$( 'link[rel="stylesheet"]', editor.getDoc().head ), function( link ) {
-                                                                if ( link.href && link.href.indexOf( 'skins/lightgray/content.min.css' ) === -1 &&
-                                                                        link.href.indexOf( 'skins/wordpress/wp-content.css' ) === -1 ) {
-
-                                                                        styles += dom.getOuterHTML( link ) + '\n';
-                                                                }
-                                                        });
-
-                                                        wp.mce.views.sandboxStyles = styles;
-                                                } else {
-                                                        styles = wp.mce.views.sandboxStyles;
-                                                }
-                                        }
-
-                                        // Seems Firefox needs a bit of time to insert/set the view nodes, or the iframe will fail
-                                        // especially when switching Text => Visual.
-                                        setTimeout( function() {
-                                                iframe = dom.add( content, 'iframe', {
-                                                        src: tinymce.Env.ie ? 'javascript:""' : '',
-                                                        frameBorder: '0',
-                                                        allowTransparency: 'true',
-                                                        scrolling: 'no',
-                                                        'class': 'wpview-sandbox',
-                                                        style: {
-                                                                width: '100%',
-                                                                display: 'block'
-                                                        }
-                                                } );
-
-                                                iframeDoc = iframe.contentWindow.document;
-
-                                                iframeDoc.open();
-                                                iframeDoc.write(
-                                                        '<!DOCTYPE html>' +
-                                                        '<html>' +
-                                                                '<head>' +
-                                                                        '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />' +
-                                                                        head +
-                                                                        styles +
-                                                                        '<style>' +
-                                                                                'html {' +
-                                                                                        'background: transparent;' +
-                                                                                        'padding: 0;' +
-                                                                                        'margin: 0;' +
-                                                                                '}' +
-                                                                                'body#wpview-iframe-sandbox {' +
-                                                                                        'background: transparent;' +
-                                                                                        'padding: 1px 0 !important;' +
-                                                                                        'margin: -1px 0 0 !important;' +
-                                                                                '}' +
-                                                                                'body#wpview-iframe-sandbox:before,' +
-                                                                                'body#wpview-iframe-sandbox:after {' +
-                                                                                        'display: none;' +
-                                                                                        'content: "";' +
-                                                                                '}' +
-                                                                        '</style>' +
-                                                                '</head>' +
-                                                                '<body id="wpview-iframe-sandbox" class="' + bodyClasses + '">' +
-                                                                        body +
-                                                                '</body>' +
-                                                        '</html>'
-                                                );
-                                                iframeDoc.close();
-
-                                                resize = function() {
-                                                        var $iframe, iframeDocHeight;
-
-                                                        // Make sure the iframe still exists.
-                                                        if ( iframe.contentWindow ) {
-                                                                $iframe = $( iframe );
-                                                                iframeDocHeight = $( iframeDoc.body ).height();
-
-                                                                if ( $iframe.height() !== iframeDocHeight ) {
-                                                                        $iframe.height( iframeDocHeight );
-                                                                        editor.nodeChanged();
-                                                                }
-                                                        }
-                                                };
-
-                                                if ( MutationObserver ) {
-                                                        new MutationObserver( _.debounce( function() {
-                                                                resize();
-                                                        }, 100 ) )
-                                                        .observe( iframeDoc.body, {
-                                                                attributes: true,
-                                                                childList: true,
-                                                                subtree: true
-                                                        } );
-                                                } else {
-                                                        for ( i = 1; i < 6; i++ ) {
-                                                                setTimeout( resize, i * 700 );
-                                                        }
-                                                }
-
-                                                if ( importStyles ) {
-                                                        editor.on( 'wp-body-class-change', function() {
-                                                                iframeDoc.body.className = editor.getBody().className;
-                                                        });
-                                                }
-                                        }, waitInterval );
-                                });
-                        } else {
-                                this.setContent( body );
-                        }
-                },
-                setError: function( message, dashicon ) {
-                        this.setContent(
-                                '<div class="wpview-error">' +
-                                        '<div class="dashicons dashicons-' + ( dashicon ? dashicon : 'no' ) + '"></div>' +
-                                        '<p>' + message + '</p>' +
-                                '</div>'
-                        );
-                },
-                rendered: function( value ) {
-                        var notRendered;
-
-                        this.getNodes( function( editor, node ) {
-                                if ( value != null ) {
-                                        $( node ).data( 'rendered', value === true );
-                                } else {
-                                        notRendered = notRendered || ! $( node ).data( 'rendered' );
-                                }
-                        } );
-
-                        return ! notRendered;
-                }
-        } );
-
-        // take advantage of the Backbone extend method
-        wp.mce.View.extend = Backbone.View.extend;
-
-        /**
          * wp.mce.views
          *
          * A set of utilities that simplifies adding custom UI within a TinyMCE editor.
@@ -283 +27 @@
         wp.mce.views = {
 
                 /**
-                 * wp.mce.views.register( type, view )
-                 *
                  * Registers a new TinyMCE view.
                  *
-                 * @param type
-                 * @param constructor
-                 *
+                 * @param {String} The view type.
+                 * @param {Object} A constructor.
                  */
                 register: function( type, constructor ) {
                         var defaultConstructor = {
@@ -319 +60 @@
                 },
 
                 /**
-                 * wp.mce.views.get( id )
-                 *
-                 * Returns a TinyMCE view constructor.
+                 * Unregisters a TinyMCE view.
                  *
-                 * @param type
+                 * @param {String} The view type.
                  */
-                get: function( type ) {
-                        return views[ type ];
+                unregister: function( type ) {
+                        delete views[ type ];
                 },
 
                 /**
-                 * wp.mce.views.unregister( type )
-                 *
-                 * Unregisters a TinyMCE view.
+                 * Returns a TinyMCE view constructor.
                  *
-                 * @param type
+                 * @param {String} The view type.
                  */
-                unregister: function( type ) {
-                        delete views[ type ];
+                get: function( type ) {
+                        return views[ type ];
                 },
 
                 /**
-                 * wp.mce.views.unbind( editor )
-                 *
                  * The editor DOM is being rebuilt, run cleanup.
                  */
                 unbind: function() {
@@ -352 +87 @@
                 },
 
                 /**
-                 * toViews( content )
-                 * Scans a `content` string for each view's pattern, replacing any
-                 * matches with wrapper elements, and creates a new instance for
-                 * every match, which triggers the related data to be fetched.
+                 * Scans a given string for each view's pattern,
+                 * replacing any matches with markers,
+                 * and creates a new instance for every match,
+                 * which triggers the related data to be fetched.
                  *
-                 * @param content
+                 * @param {String} String to scan.
                  */
                 toViews: function( content ) {
                         var pieces = [ { content: content } ],
                                 current;
 
-                        _.each( views, function( view, viewType ) {
+                        _.each( views, function( view, type ) {
                                 current = pieces.slice();
                                 pieces  = [];
 
@@ -379 +114 @@
 
                                         // Iterate through the string progressively matching views
                                         // and slicing the string as we go.
-                                        while ( remaining && (result = view.toView( remaining )) ) {
+                                        while ( remaining && ( result = view.toView( remaining ) ) ) {
                                                 // Any text before the match becomes an unprocessed piece.
                                                 if ( result.index ) {
-                                                        pieces.push({ content: remaining.substring( 0, result.index ) });
+                                                        pieces.push( { content: remaining.substring( 0, result.index ) } );
                                                 }
 
                                                 // Add the processed piece for the match.
-                                                pieces.push({
-                                                        content: wp.mce.views.toView( viewType, result.content, result.options ),
+                                                pieces.push( {
+                                                        content: wp.mce.views.toView( type, result.content, result.options ),
                                                         processed: true
-                                                });
+                                                } );
 
                                                 // Update the remaining content.
                                                 remaining = remaining.slice( result.index + result.content.length );
@@ -398 +133 @@
                                         // There are no additional matches. If any content remains,
                                         // add it as an unprocessed piece.
                                         if ( remaining ) {
-                                                pieces.push({ content: remaining });
+                                                pieces.push( { content: remaining } );
                                         }
-                                });
-                        });
+                                } );
+                        } );
 
-                        return _.pluck( pieces, 'content' ).join('');
+                        return _.pluck( pieces, 'content' ).join( '' );
                 },
 
                 /**
-                 * Create a placeholder for a particular view type
-                 *
-                 * @param viewType
-                 * @param text
-                 * @param options
+                 * Returns the marked text for a particular view type,
+                 * and creates a new instance for that view type if it does not exist.
+                 * The text will be returned unmarked if no view of that type is registered.
+                 *
+                 * @param {String} The view type.
+                 * @param {String} The textual representation of the view.
+                 * @param {Object} Options.
                  *
+                 * @return {String} The markered text.
                  */
-                toView: function( viewType, text, options ) {
-                        var view = wp.mce.views.get( viewType ),
-                                encodedText = window.encodeURIComponent( text ),
-                                instance, viewOptions;
-
+                toView: function( type, text, options ) {
+                        var view = this.get( type ),
+                                encodedText = window.encodeURIComponent( text );
 
                         if ( ! view ) {
                                 return text;
                         }
 
-                        if ( ! wp.mce.views.getInstance( encodedText ) ) {
-                                viewOptions = options;
-                                viewOptions.type = viewType;
-                                viewOptions.encodedText = encodedText;
-                                instance = new view.View( viewOptions );
-                                instances[ encodedText ] = instance;
+                        if ( ! this.getInstance( encodedText ) ) {
+                                instances[ encodedText ] = new view.View( _.extend( options, {
+                                        encodedText: encodedText,
+                                        type: type
+                                } ) );
                         }
 
-                        return wp.html.string({
-                                tag: 'div',
-
-                                attrs: {
-                                        'class': 'wpview-wrap',
-                                        'data-wpview-text': encodedText,
-                                        'data-wpview-type': viewType
-                                },
-
-                                content: '\u00a0'
-                        });
+                        return '<p data-wpview-marker="' + encodedText + '">' + text + '</p>';
                 },
 
                 /**
-                 * Refresh views after an update is made
+                 * Refresh views after an update is made.
                  *
-                 * @param view {object} being refreshed
-                 * @param text {string} textual representation of the view
-                 * @param force {Boolean} whether to force rendering
+                 * @param {Object} The view to refresh.
+                 * @param {String} The textual representation of the view.
+                 * @param {Boolean} Whether or not to force rendering.
                  */
                 refreshView: function( view, text, force ) {
-                        var encodedText = window.encodeURIComponent( text ),
-                                viewOptions,
-                                result, instance;
-
-                        instance = wp.mce.views.getInstance( encodedText );
-
-                        if ( ! instance ) {
-                                result = view.toView( text );
-                                viewOptions = result.options;
-                                viewOptions.type = view.type;
-                                viewOptions.encodedText = encodedText;
-                                instance = new view.View( viewOptions );
-                                instances[ encodedText ] = instance;
+                        var encodedText = encodeURIComponent( text );
+
+                        if ( ! this.getInstance( encodedText ) ) {
+                                instances[ encodedText ] = new view.View( _.extend( view.toView( text ).options, {
+                                        encodedText: encodedText,
+                                        type: view.type
+                                } ) );
                         }
 
-                        instance.render( force );
+                        instances[ encodedText ].render( force );
                 },
 
+                /**
+                 * @param {String} The textual representation of the view, encoded.
+                 */
                 getInstance: function( encodedText ) {
                         return instances[ encodedText ];
                 },
 
+                getInstances: function() {
+                        return instances;
+                },
+
                 /**
-                 * render( scope )
+                 * Renders any view instances.
                  *
-                 * Renders any view instances inside a DOM node `scope`.
+                 * View instances are detected by the presence of markers.
+                 * To generate markers, pass your content through `toViews`.
                  *
-                 * View instances are detected by the presence of wrapper elements.
-                 * To generate wrapper elements, pass your content through
-                 * `wp.mce.view.toViews( content )`.
+                 * @param {Boolean} Whether or not to force rendering.
                  */
                 render: function( force ) {
                         _.each( instances, function( instance ) {
@@ -490 +215 @@
                         } );
                 },
 
+                /**
+                 * @param {HTMLElement} A view node.
+                 */
                 edit: function( node ) {
-                        var viewType = $( node ).data('wpview-type'),
-                                view = wp.mce.views.get( viewType );
+                        var type = $( node ).data( 'wpview-type' ),
+                                view = this.get( type );
 
                         if ( view ) {
                                 view.edit( node );
@@ -500 +228 @@
                 }
         };
 
-        wp.mce.views.register( 'gallery', {
+        /**
+         * A Backbone-like View constructor intended for use when rendering a TinyMCE View. The main difference is
+         * that the TinyMCE View is not tied to a particular DOM node.
+         *
+         * @param {Object} Options.
+         */
+        wp.mce.View = function( options ) {
+                options = options || {};
+                this.type = options.type;
+                _.extend( this, _.pick( options, viewOptions ) );
+                this.initialize.apply( this, arguments );
+        };
+
+        _.extend( wp.mce.View.prototype, {
+
+                /**
+                 * Whether or not to display a loader.
+                 *
+                 * @type {Boolean}
+                 */
+                loader: true,
+
+                /**
+                 * Runs after the view instance is created.
+                 */
+                initialize: function() {},
+
+                /**
+                 * Retuns the HTML string to render in the view.
+                 *
+                 * @return {*}
+                 */
+                getHtml: function() {},
+
+                /**
+                 * Retuns the HTML string to render in the view.
+                 *
+                 * @param {Boolean} Whether or not to rerender.
+                 */
+                render: function( rerender ) {
+                        var i = 0;
+
+                        // If there's nothing to render an no loader needs to be shown, stop.
+                        if ( ! this.loader && ! this.getHtml() ) {
+                                return;
+                        }
+
+                        // We're about to rerender all views of this instance, so unbind rendered views.
+                        rerender && this.unbind();
+
+                        // Replace any left over markers.
+                        this.replaceMarkers();
+
+                        if ( this.getHtml() ) {
+                                this.setContent( this.getHtml(), function( editor, node ) {
+                                        $( node ).data( 'rendered', true );
+                                        this.bindNodes.apply( this, arguments );
+                                        i++;
+                                }, rerender ? null : false );
+
+                                // Use `bindNodes` if possible.
+                                i && $( this ).trigger( 'ready' );
+                        } else {
+                                this.setLoader();
+                        }
+                },
+
+                /**
+                 * Runs after a view is added to the DOM.
+                 *
+                 * @param {tinymce.Editor} The editor instance the view node is in.
+                 * @param {HTMLElement} The view node.
+                 * @param {HTMLElement} The view's content node.
+                 */
+                bindNodes: function() {},
+
+                /**
+                 * Runs before a view is removed from the DOM.
+                 */
+                unbind: function() {
+                        this.getNodes( function() {
+                                this.unbindNodes.apply( this, arguments );
+                        }, true );
+                },
+
+                /**
+                 * Runs before a view is removed from the DOM.
+                 *
+                 * @param {tinymce.Editor} The editor instance the view node is in.
+                 * @param {HTMLElement} The view node.
+                 * @param {HTMLElement} The view's content node.
+                 */
+                unbindNodes: function() {},
+
+                /**
+                 * Gets all the TinyMCE editors that support views.
+                 *
+                 * @param {Function} A callback (optional).
+                 *
+                 * @return {tinymce.Editor[]} An array of TinyMCE editor instances.
+                 */
+                getEditors: function( callback ) {
+                        var editors = [];
+
+                        _.each( tinymce.editors, function( editor ) {
+                                if ( editor.plugins.wpview ) {
+                                        editors.push( editor );
+                                        callback && callback.call( this, editor );
+                                }
+                        }, this );
+
+                        return editors;
+                },
+
+                /**
+                 * Gets all the view nodes in each editor.
+                 *
+                 * @param {Function} A callback (optional).
+                 * @param {Boolean} Get (un)rendered nodes (optional).
+                 *
+                 * @return {HTMLElement[]} An array of view nodes.
+                 */
+                getNodes: function( callback, rendered ) {
+                        var nodes = [];
+
+                        this.getEditors( function( editor ) {
+                                var self = this;
+
+                                $( editor.getBody() )
+                                        .find( '[data-wpview-text="' + self.encodedText + '"]' )
+                                        .filter( function() {
+                                                var data;
+
+                                                if ( rendered == null ) {
+                                                        return true;
+                                                }
+
+                                                data = $( this ).data( 'rendered' ) === true;
+
+                                                return rendered ? data : ! data;
+                                        } )
+                                        .each( function ( i, node ) {
+                                                nodes.push( node );
+                                                callback && callback.call( self, editor, node, $( node ).find( '.wpview-content' ).get( 0 ) );
+                                        } );
+                        } );
+
+                        return nodes;
+                },
+
+                /**
+                 * Gets all the markers in each editor.
+                 *
+                 * @param {Function} A callback (optional).
+                 *
+                 * @return {HTMLElement[]} An array of marker nodes.
+                 */
+                getMarkers: function( callback ) {
+                        var markers = [];
+
+                        this.getEditors( function( editor ) {
+                                var self = this;
+
+                                $( editor.getBody() )
+                                        .find( '[data-wpview-marker="' + this.encodedText + '"]' )
+                                        .each( function( i, node ) {
+                                                markers.push( node );
+                                                callback && callback.call( self, editor, node );
+                                        } );
+                        } );
+
+                        return markers;
+                },
+
+                /**
+                 * Replaces all markers with view nodes.
+                 */
+                replaceMarkers: function() {
+                        this.getMarkers( function( editor, node ) {
+                                if ( $( node ).text() !== decodeURIComponent( this.encodedText ) ) {
+                                        editor.dom.setAttrib( node, 'data-wpview-marker', null );
+                                        return;
+                                }
+
+                                editor.dom.replace(
+                                        editor.dom.createFragment(
+                                                '<div class="wpview-wrap" data-wpview-text="' + this.encodedText + '" data-wpview-type="' + this.type + '">' +
+                                                        '<p class="wpview-selection-before">\u00a0</p>' +
+                                                        '<div class="wpview-body" contenteditable="false">' +
+                                                                '<div class="toolbar mce-arrow-down">' +
+                                                                        ( _.isFunction( views[ this.type ].edit ) ? '<div class="dashicons dashicons-edit edit"></div>' : '' ) +
+                                                                        '<div class="dashicons dashicons-no remove"></div>' +
+                                                                '</div>' +
+                                                                '<div class="wpview-content wpview-type-' + this.type + '"></div>' +
+                                                                ( this.overlay ? '<div class="wpview-overlay"></div>' : '' ) +
+                                                        '</div>' +
+                                                        '<p class="wpview-selection-after">\u00a0</p>' +
+                                                '</div>'
+                                        ),
+                                        node
+                                );
+                        } );
+                },
+
+                /**
+                 * Removes all markers.
+                 */
+                removeMarkers: function() {
+                        this.getMarkers( function( editor, node ) {
+                                editor.dom.setAttrib( node, 'data-wpview-marker', null );
+                        } );
+                },
+
+                /**
+                 * Gets all the markers in each editor.
+                 *
+                 * @param {(String|HTMLElement)} The content to set.
+                 * @param {Function} A callback (optional).
+                 * @param {Boolean} Only set for (un)rendered nodes (optional).
+                 */
+                setContent: function( content, callback, rendered ) {
+                        if ( _.isObject( content ) && content.body.indexOf( '<script' ) !== -1 ) {
+                                this.setIframes( content.head, content.body, callback, rendered );
+                        } else if ( _.isString( content ) && content.indexOf( '<script' ) !== -1 ) {
+                                this.setIframes( null, content, callback, rendered );
+                        } else {
+                                this.getNodes( function( editor, node, contentNode ) {
+                                        content = content.body || content;
+
+                                        contentNode.innerHTML = '';
+                                        contentNode.appendChild( _.isString( content ) ? editor.dom.createFragment( content ) : content );
+
+                                        callback && callback.apply( this, arguments );
+                                }, rendered );
+                        }
+                },
+
+                /**
+                 * Set an iframe as the view content.
+                 */
+                setIframes: function( head, body, callback, rendered ) {
+                        var MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver,
+                                importStyles = this.type === 'video' || this.type === 'audio' || this.type === 'playlist';
+
+                        this.getNodes( function( editor, node, content ) {
+                                var dom = editor.dom,
+                                        styles = '',
+                                        bodyClasses = editor.getBody().className || '',
+                                        iframe, iframeDoc, i, resize;
+
+                                content.innerHTML = '';
+                                head = head || '';
+
+                                if ( importStyles ) {
+                                        if ( ! wp.mce.views.sandboxStyles ) {
+                                                tinymce.each( dom.$( 'link[rel="stylesheet"]', editor.getDoc().head ), function( link ) {
+                                                        if ( link.href && link.href.indexOf( 'skins/lightgray/content.min.css' ) === -1 &&
+                                                                link.href.indexOf( 'skins/wordpress/wp-content.css' ) === -1 ) {
+
+                                                                styles += dom.getOuterHTML( link ) + '\n';
+                                                        }
+                                                });
+
+                                                wp.mce.views.sandboxStyles = styles;
+                                        } else {
+                                                styles = wp.mce.views.sandboxStyles;
+                                        }
+                                }
+
+                                // Seems Firefox needs a bit of time to insert/set the view nodes,
+                                // or the iframe will fail especially when switching Text => Visual.
+                                setTimeout( function() {
+                                        iframe = dom.add( content, 'iframe', {
+                                                /* jshint scripturl: true */
+                                                src: tinymce.Env.ie ? 'javascript:""' : '',
+                                                frameBorder: '0',
+                                                allowTransparency: 'true',
+                                                scrolling: 'no',
+                                                'class': 'wpview-sandbox',
+                                                style: {
+                                                        width: '100%',
+                                                        display: 'block'
+                                                }
+                                        } );
+
+                                        iframeDoc = iframe.contentWindow.document;
+
+                                        iframeDoc.open();
+
+                                        iframeDoc.write(
+                                                '<!DOCTYPE html>' +
+                                                '<html>' +
+                                                        '<head>' +
+                                                                '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />' +
+                                                                head +
+                                                                styles +
+                                                                '<style>' +
+                                                                        'html {' +
+                                                                                'background: transparent;' +
+                                                                                'padding: 0;' +
+                                                                                'margin: 0;' +
+                                                                        '}' +
+                                                                        'body#wpview-iframe-sandbox {' +
+                                                                                'background: transparent;' +
+                                                                                'padding: 1px 0 !important;' +
+                                                                                'margin: -1px 0 0 !important;' +
+                                                                        '}' +
+                                                                        'body#wpview-iframe-sandbox:before,' +
+                                                                        'body#wpview-iframe-sandbox:after {' +
+                                                                                'display: none;' +
+                                                                                'content: "";' +
+                                                                        '}' +
+                                                                '</style>' +
+                                                        '</head>' +
+                                                        '<body id="wpview-iframe-sandbox" class="' + bodyClasses + '">' +
+                                                                body +
+                                                        '</body>' +
+                                                '</html>'
+                                        );
+
+                                        iframeDoc.close();
+
+                                        resize = function() {
+                                                var $iframe, iframeDocHeight;
+
+                                                // Make sure the iframe still exists.
+                                                if ( iframe.contentWindow ) {
+                                                        $iframe = $( iframe );
+                                                        iframeDocHeight = $( iframeDoc.body ).height();
+
+                                                        if ( $iframe.height() !== iframeDocHeight ) {
+                                                                $iframe.height( iframeDocHeight );
+                                                                editor.nodeChanged();
+                                                        }
+                                                }
+                                        };
+
+                                        if ( MutationObserver ) {
+                                                new MutationObserver( _.debounce( function() {
+                                                        resize();
+                                                }, 100 ) )
+                                                .observe( iframeDoc.body, {
+                                                        attributes: true,
+                                                        childList: true,
+                                                        subtree: true
+                                                } );
+                                        } else {
+                                                for ( i = 1; i < 6; i++ ) {
+                                                        setTimeout( resize, i * 700 );
+                                                }
+                                        }
+
+                                        if ( importStyles ) {
+                                                editor.on( 'wp-body-class-change', function() {
+                                                        iframeDoc.body.className = editor.getBody().className;
+                                                } );
+                                        }
+                                }, 50 );
+                        } );
+                },
+
+                /**
+                 * Set a loader.
+                 */
+                setLoader: function() {
+                        this.setContent(
+                                '<div class="loading-placeholder">' +
+                                        '<div class="dashicons dashicons-admin-media"></div>' +
+                                        '<div class="wpview-loading"><ins></ins></div>' +
+                                '</div>'
+                        );
+                },
+
+                /**
+                 * Set an error.
+                 *
+                 * @param {String} The error message to set.
+                 * @param {String} A dashicon ID (optional). {@link https://developer.wordpress.org/resource/dashicons/}
+                 */
+                setError: function( message, dashicon ) {
+                        this.setContent(
+                                '<div class="wpview-error">' +
+                                        '<div class="dashicons dashicons-' + ( dashicon || 'no' ) + '"></div>' +
+                                        '<p>' + message + '</p>' +
+                                '</div>'
+                        );
+                }
+        } );
+
+        // Take advantage of the Backbone extend method.
+        wp.mce.View.extend = Backbone.View.extend;
+} )( jQuery );
+
+/*
+ * The WordPress core TinyMCE views.
+ * Views for the gallery, audio, video, playlist and embed shortcodes,
+ * and a view for embeddable URLs.
+ */
+( function( $, views ) {
+        views.register( 'gallery', {
                 View: {
-                        template: media.template( 'editor-gallery' ),
 
-                        // The fallback post ID to use as a parent for galleries that don't
-                        // specify the `ids` or `include` parameters.
-                        //
-                        // Uses the hidden input on the edit posts page by default.
-                        postID: $('#post_ID').val(),
+                        template: wp.media.template( 'editor-gallery' ),
+
+                        postID: $( '#post_ID' ).val(),
 
                         initialize: function( options ) {
                                 this.shortcode = options.shortcode;
@@ -520 +644 @@
 
                                 this.attachments = wp.media.gallery.attachments( this.shortcode, this.postID );
                                 this.dfd = this.attachments.more().done( function() {
-                                        self.render( true );
+                                        self.render();
                                 } );
                         },
 
@@ -564 +688 @@
                                 self = this,
                                 frame, data;
 
-                        data = window.decodeURIComponent( $( node ).attr('data-wpview-text') );
+                        data = decodeURIComponent( $( node ).attr( 'data-wpview-text' ) );
                         frame = gallery.edit( data );
 
-                        frame.state('gallery-edit').on( 'update', function( selection ) {
+                        frame.state( 'gallery-edit' ).on( 'update', function( selection ) {
                                 var shortcode = gallery.shortcode( selection ).string();
-                                $( node ).attr( 'data-wpview-text', window.encodeURIComponent( shortcode ) );
+                                $( node ).attr( 'data-wpview-text', encodeURIComponent( shortcode ) );
                                 wp.mce.views.refreshView( self, shortcode, true );
-                        });
+                        } );
 
                         frame.on( 'close', function() {
                                 frame.detach();
-                        });
+                        } );
                 }
         } );
 
@@ -593 +717 @@
                         initialize: function( options ) {
                                 var self = this;
 
-                                this.shortcode = options.shortcode;
-
-                                _.bindAll( this, 'setIframes', 'setNodes', 'fetch', 'stopPlayers' );
-                                $( this ).on( 'ready', this.setNodes );
-
-                                $( document ).on( 'media:edit', this.stopPlayers );
+                                if ( options.url ) {
+                                        this.loader = false;
+                                        this.shortcode = wp.media.embed.shortcode( {
+                                                url: options.url
+                                        } );
+                                } else {
+                                        this.shortcode = options.shortcode;
+                                }
 
                                 this.fetch();
 
                                 this.getEditors( function( editor ) {
-                                        editor.on( 'hide', function () {
-                                                mediaWindows = [];
-                                                windowIdx = 0;
+                                        editor.on( 'wpview-selected', function() {
                                                 self.stopPlayers();
                                         } );
-                                });
-                        },
-
-                        pauseOtherWindows: function ( win ) {
-                                _.each( mediaWindows, function ( mediaWindow ) {
-                                        if ( mediaWindow.sandboxId !== win.sandboxId ) {
-                                                _.each( mediaWindow.mejs.players, function ( player ) {
-                                                        player.pause();
-                                                } );
-                                        }
                                 } );
                         },
 
-                        iframeLoaded: function (win) {
-                                return _.bind( function () {
-                                        var callback;
-                                        if ( ! win.mejs || _.isEmpty( win.mejs.players ) ) {
-                                                return;
-                                        }
-
-                                        win.sandboxId = windowIdx;
-                                        windowIdx++;
-                                        mediaWindows.push( win );
-
-                                        callback = _.bind( function () {
-                                                this.pauseOtherWindows( win );
-                                        }, this );
-
-                                        if ( ! _.isEmpty( win.mejs.MediaPluginBridge.pluginMediaElements ) ) {
-                                                _.each( win.mejs.MediaPluginBridge.pluginMediaElements, function ( mediaElement ) {
-                                                        mediaElement.addEventListener( 'play', callback );
-                                                } );
-                                        }
-
-                                        _.each( win.mejs.players, function ( player ) {
-                                                $( player.node ).on( 'play', callback );
-                                        }, this );
-                                }, this );
-                        },
-
-                        listenToSandboxes: function () {
-                                _.each( this.getNodes(), function ( node ) {
-                                        var win, iframe = $( '.wpview-sandbox', node ).get( 0 );
-                                        if ( iframe && ( win = iframe.contentWindow ) ) {
-                                                $( win ).load( _.bind( this.iframeLoaded( win ), this ) );
-                                        }
-                                }, this );
-                        },
-
-                        deferredListen: function () {
-                                window.setTimeout( _.bind( this.listenToSandboxes, this ), this.getNodes().length * waitInterval );
-                        },
-
-                        setNodes: function () {
-                                if ( this.parsed ) {
-                                        this.setIframes( this.parsed.head, this.parsed.body );
-                                        this.deferredListen();
-                                } else {
-                                        this.fail();
-                                }
-                        },
-
                         fetch: function () {
                                 var self = this;
 
@@ -681 +746 @@
                                         }
                                 } )
                                 .done( function( response ) {
-                                        if ( response ) {
-                                                self.parsed = response;
-                                                self.setIframes( response.head, response.body );
-                                                self.deferredListen();
-                                        } else {
-                                                self.fail( true );
-                                        }
+                                        self.parsed = response;
+                                        self.render();
                                 } )
                                 .fail( function( response ) {
-                                        self.fail( response || true );
-                                } );
-                        },
-
-                        fail: function( error ) {
-                                if ( ! this.error ) {
-                                        if ( error ) {
-                                                this.error = error;
-                                        } else {
-                                                return;
-                                        }
-                                }
-
-                                if ( this.error.message ) {
-                                        if ( ( this.error.type === 'not-embeddable' && this.type === 'embed' ) || this.error.type === 'not-ssl' ||
-                                                this.error.type === 'no-items' ) {
-
-                                                this.setError( this.error.message, 'admin-media' );
+                                        if ( self.type === 'embedURL' ) {
+                                                self.removeMarkers();
                                         } else {
-                                                this.setContent( '<p>' + this.original + '</p>', 'replace' );
+                                                self.setError( response.message || response.statusText, 'admin-media' );
                                         }
-                                } else if ( this.error.statusText ) {
-                                        this.setError( this.error.statusText, 'admin-media' );
-                                } else if ( this.original ) {
-                                        this.setContent( '<p>' + this.original + '</p>', 'replace' );
-                                }
+                                } );
                         },
 
                         stopPlayers: function( remove ) {
-                                var rem = remove === 'remove';
-
                                 this.getNodes( function( editor, node, content ) {
-                                        var p, win,
-                                                iframe = $( 'iframe.wpview-sandbox', content ).get(0);
+                                        var win = $( 'iframe.wpview-sandbox', content ).get( 0 );
 
-                                        if ( iframe && ( win = iframe.contentWindow ) && win.mejs ) {
-                                                // Sometimes ME.js may show a "Download File" placeholder and player.remove() doesn't exist there.
-                                                try {
-                                                        for ( p in win.mejs.players ) {
-                                                                win.mejs.players[p].pause();
-
-                                                                if ( rem ) {
-                                                                        win.mejs.players[p].remove();
-                                                                }
-                                                        }
-                                                } catch( er ) {}
+                                        if ( win && ( win = win.contentWindow ) && win.mejs ) {
+                                                _.each( win.mejs.players, function( player ) {
+                                                        try { player[ remove ? 'remove' : 'pause' ]() } catch ( e ) {}
+                                                } );
                                         }
-                                });
+                                } );
                         },
 
-                        unbind: function() {
-                                this.stopPlayers( 'remove' );
+                        getHtml: function() {
+                                return this.parsed;
                         }
                 },
 
@@ -760 +790 @@
                                 self = this,
                                 frame, data, callback;
 
-                        $( document ).trigger( 'media:edit' );
+                        _.each( views.getInstances(), function( instance ) {
+                                instance.stopPlayers && instance.stopPlayers();
+                        } );
 
-                        data = window.decodeURIComponent( $( node ).attr('data-wpview-text') );
+                        data = decodeURIComponent( $( node ).attr('data-wpview-text') );
                         frame = media.edit( data );
+
                         frame.on( 'close', function() {
                                 frame.detach();
                         } );
 
                         callback = function( selection ) {
                                 var shortcode = wp.media[ self.type ].shortcode( selection ).string();
-                                $( node ).attr( 'data-wpview-text', window.encodeURIComponent( shortcode ) );
+                                $( node ).attr( 'data-wpview-text', encodeURIComponent( shortcode ) );
                                 wp.mce.views.refreshView( self, shortcode );
                                 frame.detach();
                         };
+
                         if ( _.isArray( self.state ) ) {
                                 _.each( self.state, function (state) {
                                         frame.state( state ).on( 'update', callback );
@@ -781 +815 @@
                         } else {
                                 frame.state( self.state ).on( 'update', callback );
                         }
+
                         frame.open();
                 }
         };
@@ -790 +825 @@
          *
          * @mixes wp.mce.av
          */
-        wp.mce.views.register( 'video', _.extend( {}, wp.mce.av, {
+        views.register( 'video', _.extend( {}, wp.mce.av, {
                 state: 'video-details'
         } ) );
 
@@ -799 +834 @@
          *
          * @mixes wp.mce.av
          */
-        wp.mce.views.register( 'audio', _.extend( {}, wp.mce.av, {
+        views.register( 'audio', _.extend( {}, wp.mce.av, {
                 state: 'audio-details'
         } ) );
 
@@ -808 +843 @@
          *
          * @mixes wp.mce.av
          */
-        wp.mce.views.register( 'playlist', _.extend( {}, wp.mce.av, {
+        views.register( 'playlist', _.extend( {}, wp.mce.av, {
                 state: [ 'playlist-edit', 'video-playlist-edit' ]
         } ) );
 
@@ -818 +853 @@
         wp.mce.embedMixin = {
                 View: _.extend( {}, wp.mce.av.View, {
                         overlay: true,
-                        action: 'parse-embed',
-                        initialize: function( options ) {
-                                this.content = options.content;
-                                this.original = options.url || options.shortcode.string();
-
-                                if ( options.url ) {
-                                        this.shortcode = media.embed.shortcode( {
-                                                url: options.url
-                                        } );
-                                } else {
-                                        this.shortcode = options.shortcode;
-                                }
-
-                                _.bindAll( this, 'setIframes', 'setNodes', 'fetch' );
-                                $( this ).on( 'ready', this.setNodes );
-
-                                this.fetch();
-                        }
+                        action: 'parse-embed'
                 } ),
                 edit: function( node ) {
-                        var embed = media.embed,
+                        var embed = wp.media.embed,
                                 self = this,
                                 frame,
                                 data,
                                 isURL = 'embedURL' === this.type;
 
-                        $( document ).trigger( 'media:edit' );
-
-                        data = window.decodeURIComponent( $( node ).attr('data-wpview-text') );
+                        data = decodeURIComponent( $( node ).attr('data-wpview-text') );
                         frame = embed.edit( data, isURL );
+
                         frame.on( 'close', function() {
                                 frame.detach();
                         } );
+
                         frame.state( 'embed' ).props.on( 'change:url', function (model, url) {
                                 if ( ! url ) {
                                         return;
                                 }
                                 frame.state( 'embed' ).metadata = model.toJSON();
                         } );
+
                         frame.state( 'embed' ).on( 'select', function() {
                                 var shortcode;
 
@@ -865 +884 @@
                                 } else {
                                         shortcode = embed.shortcode( frame.state( 'embed' ).metadata ).string();
                                 }
-                                $( node ).attr( 'data-wpview-text', window.encodeURIComponent( shortcode ) );
+                                $( node ).attr( 'data-wpview-text', encodeURIComponent( shortcode ) );
                                 wp.mce.views.refreshView( self, shortcode );
                                 frame.detach();
                         } );
+
                         frame.open();
                 }
         };
 
-        wp.mce.views.register( 'embed', _.extend( {}, wp.mce.embedMixin ) );
+        views.register( 'embed', _.extend( {}, wp.mce.embedMixin ) );
 
-        wp.mce.views.register( 'embedURL', _.extend( {}, wp.mce.embedMixin, {
+        views.register( 'embedURL', _.extend( {}, wp.mce.embedMixin, {
                 toView: function( content ) {
                         var re = /(^|<p>)(https?:\/\/[^\s"]+?)(<\/p>\s*|$)/gi,
                                 match = re.exec( tinymce.trim( content ) );
@@ -893 +913 @@
                         };
                 }
         } ) );
-
-}(jQuery));
+} )( jQuery, wp.mce.views );