1/**
  2 * @output wp-includes/js/media-editor.js
  3 */
  4
  5/* global getUserSetting, tinymce, QTags */
  6
  7// WordPress, TinyMCE, and Media
  8// -----------------------------
  9(function($, _){
 10	/**
 11	 * Stores the editors' `wp.media.controller.Frame` instances.
 12	 *
 13	 * @static
 14	 */
 15	var workflows = {};
 16
 17	/**
 18	 * A helper mixin function to avoid truthy and falsey values being
 19	 *   passed as an input that expects booleans. If key is undefined in the map,
 20	 *   but has a default value, set it.
 21	 *
 22	 * @param {Object} attrs Map of props from a shortcode or settings.
 23	 * @param {string} key The key within the passed map to check for a value.
 24	 * @return {mixed|undefined} The original or coerced value of key within attrs.
 25	 */
 26	wp.media.coerce = function ( attrs, key ) {
 27		if ( _.isUndefined( attrs[ key ] ) && ! _.isUndefined( this.defaults[ key ] ) ) {
 28			attrs[ key ] = this.defaults[ key ];
 29		} else if ( 'true' === attrs[ key ] ) {
 30			attrs[ key ] = true;
 31		} else if ( 'false' === attrs[ key ] ) {
 32			attrs[ key ] = false;
 33		}
 34		return attrs[ key ];
 35	};
 36
 37	/** @namespace wp.media.string */
 38	wp.media.string = {
 39		/**
 40		 * Joins the `props` and `attachment` objects,
 41		 * outputting the proper object format based on the
 42		 * attachment's type.
 43		 *
 44		 * @param {Object} [props={}] Attachment details (align, link, size, etc).
 45		 * @param {Object} attachment The attachment object, media version of Post.
 46		 * @return {Object} Joined props
 47		 */
 48		props: function( props, attachment ) {
 49			var link, linkUrl, size, sizes,
 50				defaultProps = wp.media.view.settings.defaultProps;
 51
 52			props = props ? _.clone( props ) : {};
 53
 54			if ( attachment && attachment.type ) {
 55				props.type = attachment.type;
 56			}
 57
 58			if ( 'image' === props.type ) {
 59				props = _.defaults( props || {}, {
 60					align:   defaultProps.align || getUserSetting( 'align', 'none' ),
 61					size:    defaultProps.size  || getUserSetting( 'imgsize', 'medium' ),
 62					url:     '',
 63					classes: []
 64				});
 65			}
 66
 67			// All attachment-specific settings follow.
 68			if ( ! attachment ) {
 69				return props;
 70			}
 71
 72			props.title = props.title || attachment.title;
 73
 74			link = props.link || defaultProps.link || getUserSetting( 'urlbutton', 'file' );
 75			if ( 'file' === link || 'embed' === link ) {
 76				linkUrl = attachment.url;
 77			} else if ( 'post' === link ) {
 78				linkUrl = attachment.link;
 79			} else if ( 'custom' === link ) {
 80				linkUrl = props.linkUrl;
 81			}
 82			props.linkUrl = linkUrl || '';
 83
 84			// Format properties for images.
 85			if ( 'image' === attachment.type ) {
 86				props.classes.push( 'wp-image-' + attachment.id );
 87
 88				sizes = attachment.sizes;
 89				size = sizes && sizes[ props.size ] ? sizes[ props.size ] : attachment;
 90
 91				_.extend( props, _.pick( attachment, 'align', 'caption', 'alt' ), {
 92					width:     size.width,
 93					height:    size.height,
 94					src:       size.url,
 95					captionId: 'attachment_' + attachment.id
 96				});
 97			} else if ( 'video' === attachment.type || 'audio' === attachment.type ) {
 98				_.extend( props, _.pick( attachment, 'title', 'type', 'icon', 'mime' ) );
 99			// Format properties for non-images.
100			} else {
101				props.title = props.title || attachment.filename;
102				props.rel = props.rel || 'attachment wp-att-' + attachment.id;
103			}
104
105			return props;
106		},
107		/**
108		 * Create link markup that is suitable for passing to the editor
109		 *
110		 * @param {Object} props Attachment details (align, link, size, etc).
111		 * @param {Object} attachment The attachment object, media version of Post.
112		 * @return {string} The link markup
113		 */
114		link: function( props, attachment ) {
115			var options;
116
117			props = wp.media.string.props( props, attachment );
118
119			options = {
120				tag:     'a',
121				content: props.title,
122				attrs:   {
123					href: props.linkUrl
124				}
125			};
126
127			if ( props.rel ) {
128				options.attrs.rel = props.rel;
129			}
130
131			return wp.html.string( options );
132		},
133		/**
134		 * Create an Audio shortcode string that is suitable for passing to the editor
135		 *
136		 * @param {Object} props Attachment details (align, link, size, etc).
137		 * @param {Object} attachment The attachment object, media version of Post.
138		 * @return {string} The audio shortcode
139		 */
140		audio: function( props, attachment ) {
141			return wp.media.string._audioVideo( 'audio', props, attachment );
142		},
143		/**
144		 * Create a Video shortcode string that is suitable for passing to the editor
145		 *
146		 * @param {Object} props Attachment details (align, link, size, etc).
147		 * @param {Object} attachment The attachment object, media version of Post.
148		 * @return {string} The video shortcode
149		 */
150		video: function( props, attachment ) {
151			return wp.media.string._audioVideo( 'video', props, attachment );
152		},
153		/**
154		 * Helper function to create a media shortcode string
155		 *
156		 * @access private
157		 *
158		 * @param {string} type The shortcode tag name: 'audio' or 'video'.
159		 * @param {Object} props Attachment details (align, link, size, etc).
160		 * @param {Object} attachment The attachment object, media version of Post.
161		 * @return {string} The media shortcode
162		 */
163		_audioVideo: function( type, props, attachment ) {
164			var shortcode, html, extension;
165
166			props = wp.media.string.props( props, attachment );
167			if ( props.link !== 'embed' ) {
168				return wp.media.string.link( props );
169			}
170
171			shortcode = {};
172
173			if ( 'video' === type ) {
174				if ( attachment.image && -1 === attachment.image.src.indexOf( attachment.icon ) ) {
175					shortcode.poster = attachment.image.src;
176				}
177
178				if ( attachment.width ) {
179					shortcode.width = attachment.width;
180				}
181
182				if ( attachment.height ) {
183					shortcode.height = attachment.height;
184				}
185			}
186
187			extension = attachment.filename.split('.').pop();
188
189			if ( _.contains( wp.media.view.settings.embedExts, extension ) ) {
190				shortcode[extension] = attachment.url;
191			} else {
192				// Render unsupported audio and video files as links.
193				return wp.media.string.link( props );
194			}
195
196			html = wp.shortcode.string({
197				tag:     type,
198				attrs:   shortcode
199			});
200
201			return html;
202		},
203		/**
204		 * Create image markup, optionally with a link and/or wrapped in a caption shortcode,
205		 *  that is suitable for passing to the editor
206		 *
207		 * @param {Object} props Attachment details (align, link, size, etc).
208		 * @param {Object} attachment The attachment object, media version of Post.
209		 * @return {string}
210		 */
211		image: function( props, attachment ) {
212			var img = {},
213				options, classes, shortcode, html;
214
215			props.type = 'image';
216			props = wp.media.string.props( props, attachment );
217			classes = props.classes || [];
218
219			img.src = ! _.isUndefined( attachment ) ? attachment.url : props.url;
220			_.extend( img, _.pick( props, 'width', 'height', 'alt' ) );
221
222			// Only assign the align class to the image if we're not printing
223			// a caption, since the alignment is sent to the shortcode.
224			if ( props.align && ! props.caption ) {
225				classes.push( 'align' + props.align );
226			}
227
228			if ( props.size ) {
229				classes.push( 'size-' + props.size );
230			}
231
232			img['class'] = _.compact( classes ).join(' ');
233
234			// Generate `img` tag options.
235			options = {
236				tag:    'img',
237				attrs:  img,
238				single: true
239			};
240
241			// Generate the `a` element options, if they exist.
242			if ( props.linkUrl ) {
243				options = {
244					tag:   'a',
245					attrs: {
246						href: props.linkUrl
247					},
248					content: options
249				};
250			}
251
252			html = wp.html.string( options );
253
254			// Generate the caption shortcode.
255			if ( props.caption ) {
256				shortcode = {};
257
258				if ( img.width ) {
259					shortcode.width = img.width;
260				}
261
262				if ( props.captionId ) {
263					shortcode.id = props.captionId;
264				}
265
266				if ( props.align ) {
267					shortcode.align = 'align' + props.align;
268				}
269
270				html = wp.shortcode.string({
271					tag:     'caption',
272					attrs:   shortcode,
273					content: html + ' ' + props.caption
274				});
275			}
276
277			return html;
278		}
279	};
280
281	wp.media.embed = {
282		coerce : wp.media.coerce,
283
284		defaults : {
285			url : '',
286			width: '',
287			height: ''
288		},
289
290		edit : function( data, isURL ) {
291			var frame, props = {}, shortcode;
292
293			if ( isURL ) {
294				props.url = data.replace(/<[^>]+>/g, '');
295			} else {
296				shortcode = wp.shortcode.next( 'embed', data ).shortcode;
297
298				props = _.defaults( shortcode.attrs.named, this.defaults );
299				if ( shortcode.content ) {
300					props.url = shortcode.content;
301				}
302			}
303
304			frame = wp.media({
305				frame: 'post',
306				state: 'embed',
307				metadata: props
308			});
309
310			return frame;
311		},
312
313		shortcode : function( model ) {
314			var self = this, content;
315
316			_.each( this.defaults, function( value, key ) {
317				model[ key ] = self.coerce( model, key );
318
319				if ( value === model[ key ] ) {
320					delete model[ key ];
321				}
322			});
323
324			content = model.url;
325			delete model.url;
326
327			return new wp.shortcode({
328				tag: 'embed',
329				attrs: model,
330				content: content
331			});
332		}
333	};
334
335	/**
336	 * @class wp.media.collection
337	 *
338	 * @param {Object} attributes
339	 */
340	wp.media.collection = function(attributes) {
341		var collections = {};
342
343		return _.extend(/** @lends wp.media.collection.prototype */{
344			coerce : wp.media.coerce,
345			/**
346			 * Retrieve attachments based on the properties of the passed shortcode
347			 *
348			 * @param {wp.shortcode} shortcode An instance of wp.shortcode().
349			 * @return {wp.media.model.Attachments} A Backbone.Collection containing
350			 *                                      the media items belonging to a collection.
351			 *                                      The query[ this.tag ] property is a Backbone.Model
352			 *                                      containing the 'props' for the collection.
353			 */
354			attachments: function( shortcode ) {
355				var shortcodeString = shortcode.string(),
356					result = collections[ shortcodeString ],
357					attrs, args, query, others, self = this;
358
359				delete collections[ shortcodeString ];
360				if ( result ) {
361					return result;
362				}
363				// Fill the default shortcode attributes.
364				attrs = _.defaults( shortcode.attrs.named, this.defaults );
365				args  = _.pick( attrs, 'orderby', 'order' );
366
367				args.type    = this.type;
368				args.perPage = -1;
369
370				// Mark the `orderby` override attribute.
371				if ( undefined !== attrs.orderby ) {
372					attrs._orderByField = attrs.orderby;
373				}
374
375				if ( 'rand' === attrs.orderby ) {
376					attrs._orderbyRandom = true;
377				}
378
379				// Map the `orderby` attribute to the corresponding model property.
380				if ( ! attrs.orderby || /^menu_order(?: ID)?$/i.test( attrs.orderby ) ) {
381					args.orderby = 'menuOrder';
382				}
383
384				// Map the `ids` param to the correct query args.
385				if ( attrs.ids ) {
386					args.post__in = attrs.ids.split(',');
387					args.orderby  = 'post__in';
388				} else if ( attrs.include ) {
389					args.post__in = attrs.include.split(',');
390				}
391
392				if ( attrs.exclude ) {
393					args.post__not_in = attrs.exclude.split(',');
394				}
395
396				if ( ! args.post__in ) {
397					args.uploadedTo = attrs.id;
398				}
399
400				// Collect the attributes that were not included in `args`.
401				others = _.omit( attrs, 'id', 'ids', 'include', 'exclude', 'orderby', 'order' );
402
403				_.each( this.defaults, function( value, key ) {
404					others[ key ] = self.coerce( others, key );
405				});
406
407				query = wp.media.query( args );
408				query[ this.tag ] = new Backbone.Model( others );
409				return query;
410			},
411			/**
412			 * Triggered when clicking 'Insert {label}' or 'Update {label}'
413			 *
414			 * @param {wp.media.model.Attachments} attachments A Backbone.Collection containing
415			 *      the media items belonging to a collection.
416			 *      The query[ this.tag ] property is a Backbone.Model
417			 *          containing the 'props' for the collection.
418			 * @return {wp.shortcode}
419			 */
420			shortcode: function( attachments ) {
421				var props = attachments.props.toJSON(),
422					attrs = _.pick( props, 'orderby', 'order' ),
423					shortcode, clone;
424
425				if ( attachments.type ) {
426					attrs.type = attachments.type;
427					delete attachments.type;
428				}
429
430				if ( attachments[this.tag] ) {
431					_.extend( attrs, attachments[this.tag].toJSON() );
432				}
433
434				/*
435				 * Convert all gallery shortcodes to use the `ids` property.
436				 * Ignore `post__in` and `post__not_in`; the attachments in
437				 * the collection will already reflect those properties.
438				 */
439				attrs.ids = attachments.pluck('id');
440
441				// Copy the `uploadedTo` post ID.
442				if ( props.uploadedTo ) {
443					attrs.id = props.uploadedTo;
444				}
445				// Check if the gallery is randomly ordered.
446				delete attrs.orderby;
447
448				if ( attrs._orderbyRandom ) {
449					attrs.orderby = 'rand';
450				} else if ( attrs._orderByField && 'rand' !== attrs._orderByField ) {
451					attrs.orderby = attrs._orderByField;
452				}
453
454				delete attrs._orderbyRandom;
455				delete attrs._orderByField;
456
457				// If the `ids` attribute is set and `orderby` attribute
458				// is the default value, clear it for cleaner output.
459				if ( attrs.ids && 'post__in' === attrs.orderby ) {
460					delete attrs.orderby;
461				}
462
463				attrs = this.setDefaults( attrs );
464
465				shortcode = new wp.shortcode({
466					tag:    this.tag,
467					attrs:  attrs,
468					type:   'single'
469				});
470
471				// Use a cloned version of the gallery.
472				clone = new wp.media.model.Attachments( attachments.models, {
473					props: props
474				});
475				clone[ this.tag ] = attachments[ this.tag ];
476				collections[ shortcode.string() ] = clone;
477
478				return shortcode;
479			},
480			/**
481			 * Triggered when double-clicking a collection shortcode placeholder
482			 *   in the editor
483			 *
484			 * @param {string} content Content that is searched for possible
485			 *    shortcode markup matching the passed tag name,
486			 *
487			 * @this wp.media.{prop}
488			 *
489			 * @return {wp.media.view.MediaFrame.Select} A media workflow.
490			 */
491			edit: function( content ) {
492				var shortcode = wp.shortcode.next( this.tag, content ),
493					defaultPostId = this.defaults.id,
494					attachments, selection, state;
495
496				// Bail if we didn't match the shortcode or all of the content.
497				if ( ! shortcode || shortcode.content !== content ) {
498					return;
499				}
500
501				// Ignore the rest of the match object.
502				shortcode = shortcode.shortcode;
503
504				if ( _.isUndefined( shortcode.get('id') ) && ! _.isUndefined( defaultPostId ) ) {
505					shortcode.set( 'id', defaultPostId );
506				}
507
508				attachments = this.attachments( shortcode );
509
510				selection = new wp.media.model.Selection( attachments.models, {
511					props:    attachments.props.toJSON(),
512					multiple: true
513				});
514
515				selection[ this.tag ] = attachments[ this.tag ];
516
517				// Fetch the query's attachments, and then break ties from the
518				// query to allow for sorting.
519				selection.more().done( function() {
520					// Break ties with the query.
521					selection.props.set({ query: false });
522					selection.unmirror();
523					selection.props.unset('orderby');
524				});
525
526				// Destroy the previous gallery frame.
527				if ( this.frame ) {
528					this.frame.dispose();
529				}
530
531				if ( shortcode.attrs.named.type && 'video' === shortcode.attrs.named.type ) {
532					state = 'video-' + this.tag + '-edit';
533				} else {
534					state = this.tag + '-edit';
535				}
536
537				// Store the current frame.
538				this.frame = wp.media({
539					frame:     'post',
540					state:     state,
541					title:     this.editTitle,
542					editing:   true,
543					multiple:  true,
544					selection: selection
545				}).open();
546
547				return this.frame;
548			},
549
550			setDefaults: function( attrs ) {
551				var self = this;
552				// Remove default attributes from the shortcode.
553				_.each( this.defaults, function( value, key ) {
554					attrs[ key ] = self.coerce( attrs, key );
555					if ( value === attrs[ key ] ) {
556						delete attrs[ key ];
557					}
558				});
559
560				return attrs;
561			}
562		}, attributes );
563	};
564
565	wp.media._galleryDefaults = {
566		itemtag: 'dl',
567		icontag: 'dt',
568		captiontag: 'dd',
569		columns: '3',
570		link: 'post',
571		size: 'thumbnail',
572		order: 'ASC',
573		id: wp.media.view.settings.post && wp.media.view.settings.post.id,
574		orderby : 'menu_order ID'
575	};
576
577	if ( wp.media.view.settings.galleryDefaults ) {
578		wp.media.galleryDefaults = _.extend( {}, wp.media._galleryDefaults, wp.media.view.settings.galleryDefaults );
579	} else {
580		wp.media.galleryDefaults = wp.media._galleryDefaults;
581	}
582
583	wp.media.gallery = new wp.media.collection({
584		tag: 'gallery',
585		type : 'image',
586		editTitle : wp.media.view.l10n.editGalleryTitle,
587		defaults : wp.media.galleryDefaults,
588
589		setDefaults: function( attrs ) {
590			var self = this, changed = ! _.isEqual( wp.media.galleryDefaults, wp.media._galleryDefaults );
591			_.each( this.defaults, function( value, key ) {
592				attrs[ key ] = self.coerce( attrs, key );
593				if ( value === attrs[ key ] && ( ! changed || value === wp.media._galleryDefaults[ key ] ) ) {
594					delete attrs[ key ];
595				}
596			} );
597			return attrs;
598		}
599	});
600
601	/**
602	 * @namespace wp.media.featuredImage
603	 * @memberOf wp.media
604	 */
605	wp.media.featuredImage = {
606		/**
607		 * Get the featured image post ID
608		 *
609		 * @return {wp.media.view.settings.post.featuredImageId|number}
610		 */
611		get: function() {
612			return wp.media.view.settings.post.featuredImageId;
613		},
614		/**
615		 * Sets the featured image ID property and sets the HTML in the post meta box to the new featured image.
616		 *
617		 * @param {number} id The post ID of the featured image, or -1 to unset it.
618		 */
619		set: function( id ) {
620			var settings = wp.media.view.settings;
621
622			settings.post.featuredImageId = id;
623
624			wp.media.post( 'get-post-thumbnail-html', {
625				post_id:      settings.post.id,
626				thumbnail_id: settings.post.featuredImageId,
627				_wpnonce:     settings.post.nonce
628			}).done( function( html ) {
629				if ( '0' === html ) {
630					window.alert( wp.i18n.__( 'Could not set that as the thumbnail image. Try a different attachment.' ) );
631					return;
632				}
633				$( '.inside', '#postimagediv' ).html( html );
634			});
635		},
636		/**
637		 * Remove the featured image id, save the post thumbnail data and
638		 * set the HTML in the post meta box to no featured image.
639		 */
640		remove: function() {
641			wp.media.featuredImage.set( -1 );
642		},
643		/**
644		 * The Featured Image workflow
645		 *
646		 * @this wp.media.featuredImage
647		 *
648		 * @return {wp.media.view.MediaFrame.Select} A media workflow.
649		 */
650		frame: function() {
651			if ( this._frame ) {
652				wp.media.frame = this._frame;
653				return this._frame;
654			}
655
656			this._frame = wp.media({
657				state: 'featured-image',
658				states: [ new wp.media.controller.FeaturedImage() , new wp.media.controller.EditImage() ]
659			});
660
661			this._frame.on( 'toolbar:create:featured-image', function( toolbar ) {
662				/**
663				 * @this wp.media.view.MediaFrame.Select
664				 */
665				this.createSelectToolbar( toolbar, {
666					text: wp.media.view.l10n.setFeaturedImage
667				});
668			}, this._frame );
669
670			this._frame.on( 'content:render:edit-image', function() {
671				var selection = this.state('featured-image').get('selection'),
672					view = new wp.media.view.EditImage( { model: selection.single(), controller: this } ).render();
673
674				this.content.set( view );
675
676				// After bringing in the frame, load the actual editor via an Ajax call.
677				view.loadEditor();
678
679			}, this._frame );
680
681			this._frame.state('featured-image').on( 'select', this.select );
682			return this._frame;
683		},
684		/**
685		 * 'select' callback for Featured Image workflow, triggered when
686		 *  the 'Set Featured Image' button is clicked in the media modal.
687		 *
688		 * @this wp.media.controller.FeaturedImage
689		 */
690		select: function() {
691			var selection = this.get('selection').single();
692
693			if ( ! wp.media.view.settings.post.featuredImageId ) {
694				return;
695			}
696
697			wp.media.featuredImage.set( selection ? selection.id : -1 );
698		},
699		/**
700		 * Open the content media manager to the 'featured image' tab when
701		 * the post thumbnail is clicked.
702		 *
703		 * Update the featured image id when the 'remove' link is clicked.
704		 */
705		init: function() {
706			$('#postimagediv').on( 'click', '#set-post-thumbnail', function( event ) {
707				event.preventDefault();
708				// Stop propagation to prevent thickbox from activating.
709				event.stopPropagation();
710
711				wp.media.featuredImage.frame().open();
712			}).on( 'click', '#remove-post-thumbnail', function() {
713				wp.media.featuredImage.remove();
714				return false;
715			});
716		}
717	};
718
719	$( wp.media.featuredImage.init );
720
721	/** @namespace wp.media.editor */
722	wp.media.editor = {
723		/**
724		 * Send content to the editor
725		 *
726		 * @param {string} html Content to send to the editor
727		 */
728		insert: function( html ) {
729			var editor, wpActiveEditor,
730				hasTinymce = ! _.isUndefined( window.tinymce ),
731				hasQuicktags = ! _.isUndefined( window.QTags );
732
733			if ( this.activeEditor ) {
734				wpActiveEditor = window.wpActiveEditor = this.activeEditor;
735			} else {
736				wpActiveEditor = window.wpActiveEditor;
737			}
738
739			/*
740			 * Delegate to the global `send_to_editor` if it exists.
741			 * This attempts to play nice with any themes/plugins
742			 * that have overridden the insert functionality.
743			 */
744			if ( window.send_to_editor ) {
745				return window.send_to_editor.apply( this, arguments );
746			}
747
748			if ( ! wpActiveEditor ) {
749				if ( hasTinymce && tinymce.activeEditor ) {
750					editor = tinymce.activeEditor;
751					wpActiveEditor = window.wpActiveEditor = editor.id;
752				} else if ( ! hasQuicktags ) {
753					return false;
754				}
755			} else if ( hasTinymce ) {
756				editor = tinymce.get( wpActiveEditor );
757			}
758
759			if ( editor && ! editor.isHidden() ) {
760				editor.execCommand( 'mceInsertContent', false, html );
761			} else if ( hasQuicktags ) {
762				QTags.insertContent( html );
763			} else {
764				document.getElementById( wpActiveEditor ).value += html;
765			}
766
767			// If the old thickbox remove function exists, call it in case
768			// a theme/plugin overloaded it.
769			if ( window.tb_remove ) {
770				try { window.tb_remove(); } catch( e ) {}
771			}
772		},
773
774		/**
775		 * Setup 'workflow' and add to the 'workflows' cache. 'open' can
776		 *  subsequently be called upon it.
777		 *
778		 * @param {string} id A slug used to identify the workflow.
779		 * @param {Object} [options={}]
780		 *
781		 * @this wp.media.editor
782		 *
783		 * @return {wp.media.view.MediaFrame.Select} A media workflow.
784		 */
785		add: function( id, options ) {
786			var workflow = this.get( id );
787
788			// Only add once: if exists return existing.
789			if ( workflow ) {
790				return workflow;
791			}
792
793			workflow = workflows[ id ] = wp.media( _.defaults( options || {}, {
794				frame:    'post',
795				state:    'insert',
796				title:    wp.media.view.l10n.addMedia,
797				multiple: true
798			} ) );
799
800			workflow.on( 'insert', function( selection ) {
801				var state = workflow.state();
802
803				selection = selection || state.get('selection');
804
805				if ( ! selection ) {
806					return;
807				}
808
809				$.when.apply( $, selection.map( function( attachment ) {
810					var display = state.display( attachment ).toJSON();
811					/**
812					 * @this wp.media.editor
813					 */
814					return this.send.attachment( display, attachment.toJSON() );
815				}, this ) ).done( function() {
816					wp.media.editor.insert( _.toArray( arguments ).join('\n\n') );
817				});
818			}, this );
819
820			workflow.state('gallery-edit').on( 'update', function( selection ) {
821				/**
822				 * @this wp.media.editor
823				 */
824				this.insert( wp.media.gallery.shortcode( selection ).string() );
825			}, this );
826
827			workflow.state('playlist-edit').on( 'update', function( selection ) {
828				/**
829				 * @this wp.media.editor
830				 */
831				this.insert( wp.media.playlist.shortcode( selection ).string() );
832			}, this );
833
834			workflow.state('video-playlist-edit').on( 'update', function( selection ) {
835				/**
836				 * @this wp.media.editor
837				 */
838				this.insert( wp.media.playlist.shortcode( selection ).string() );
839			}, this );
840
841			workflow.state('embed').on( 'select', function() {
842				/**
843				 * @this wp.media.editor
844				 */
845				var state = workflow.state(),
846					type = state.get('type'),
847					embed = state.props.toJSON();
848
849				embed.url = embed.url || '';
850
851				if ( 'link' === type ) {
852					_.defaults( embed, {
853						linkText: embed.url,
854						linkUrl: embed.url
855					});
856
857					this.send.link( embed ).done( function( resp ) {
858						wp.media.editor.insert( resp );
859					});
860
861				} else if ( 'image' === type ) {
862					_.defaults( embed, {
863						title:   embed.url,
864						linkUrl: '',
865						align:   'none',
866						link:    'none'
867					});
868
869					if ( 'none' === embed.link ) {
870						embed.linkUrl = '';
871					} else if ( 'file' === embed.link ) {
872						embed.linkUrl = embed.url;
873					}
874
875					this.insert( wp.media.string.image( embed ) );
876				}
877			}, this );
878
879			workflow.state('featured-image').on( 'select', wp.media.featuredImage.select );
880			workflow.setState( workflow.options.state );
881			return workflow;
882		},
883		/**
884		 * Determines the proper current workflow id
885		 *
886		 * @param {string} [id=''] A slug used to identify the workflow.
887		 *
888		 * @return {wpActiveEditor|string|tinymce.activeEditor.id}
889		 */
890		id: function( id ) {
891			if ( id ) {
892				return id;
893			}
894
895			// If an empty `id` is provided, default to `wpActiveEditor`.
896			id = window.wpActiveEditor;
897
898			// If that doesn't work, fall back to `tinymce.activeEditor.id`.
899			if ( ! id && ! _.isUndefined( window.tinymce ) && tinymce.activeEditor ) {
900				id = tinymce.activeEditor.id;
901			}
902
903			// Last but not least, fall back to the empty string.
904			id = id || '';
905			return id;
906		},
907		/**
908		 * Return the workflow specified by id
909		 *
910		 * @param {string} id A slug used to identify the workflow.
911		 *
912		 * @this wp.media.editor
913		 *
914		 * @return {wp.media.view.MediaFrame} A media workflow.
915		 */
916		get: function( id ) {
917			id = this.id( id );
918			return workflows[ id ];
919		},
920		/**
921		 * Remove the workflow represented by id from the workflow cache
922		 *
923		 * @param {string} id A slug used to identify the workflow.
924		 *
925		 * @this wp.media.editor
926		 */
927		remove: function( id ) {
928			id = this.id( id );
929			delete workflows[ id ];
930		},
931		/** @namespace wp.media.editor.send */
932		send: {
933			/**
934			 * Called when sending an attachment to the editor
935			 *   from the medial modal.
936			 *
937			 * @param {Object} props Attachment details (align, link, size, etc).
938			 * @param {Object} attachment The attachment object, media version of Post.
939			 * @return {Promise}
940			 */
941			attachment: function( props, attachment ) {
942				var caption = attachment.caption,
943					options, html;
944
945				// If captions are disabled, clear the caption.
946				if ( ! wp.media.view.settings.captions ) {
947					delete attachment.caption;
948				}
949
950				props = wp.media.string.props( props, attachment );
951
952				options = {
953					id:           attachment.id,
954					post_content: attachment.description,
955					post_excerpt: caption
956				};
957
958				if ( props.linkUrl ) {
959					options.url = props.linkUrl;
960				}
961
962				if ( 'image' === attachment.type ) {
963					html = wp.media.string.image( props );
964
965					_.each({
966						align: 'align',
967						size:  'image-size',
968						alt:   'image_alt'
969					}, function( option, prop ) {
970						if ( props[ prop ] ) {
971							options[ option ] = props[ prop ];
972						}
973					});
974				} else if ( 'video' === attachment.type ) {
975					html = wp.media.string.video( props, attachment );
976				} else if ( 'audio' === attachment.type ) {
977					html = wp.media.string.audio( props, attachment );
978				} else {
979					html = wp.media.string.link( props );
980					options.post_title = props.title;
981				}
982
983				return wp.media.post( 'send-attachment-to-editor', {
984					nonce:      wp.media.view.settings.nonce.sendToEditor,
985					attachment: options,
986					html:       html,
987					post_id:    wp.media.view.settings.post.id
988				});
989			},
990			/**
991			 * Called when 'Insert From URL' source is not an image. Example: YouTube url.
992			 *
993			 * @param {Object} embed
994			 * @return {Promise}
995			 */
996			link: function( embed ) {
997				return wp.media.post( 'send-link-to-editor', {
998					nonce:     wp.media.view.settings.nonce.sendToEditor,
999					src:       embed.linkUrl,
1000					link_text: embed.linkText,
1001					html:      wp.media.string.link( embed ),
1002					post_id:   wp.media.view.settings.post.id
1003				});
1004			}
1005		},
1006		/**
1007		 * Open a workflow
1008		 *
1009		 * @param {string} [id=undefined] Optional. A slug used to identify the workflow.
1010		 * @param {Object} [options={}]
1011		 *
1012		 * @this wp.media.editor
1013		 *
1014		 * @return {wp.media.view.MediaFrame}
1015		 */
1016		open: function( id, options ) {
1017			var workflow;
1018
1019			options = options || {};
1020
1021			id = this.id( id );
1022			this.activeEditor = id;
1023
1024			workflow = this.get( id );
1025
1026			// Redo workflow if state has changed.
1027			if ( ! workflow || ( workflow.options && options.state !== workflow.options.state ) ) {
1028				workflow = this.add( id, options );
1029			}
1030
1031			wp.media.frame = workflow;
1032
1033			return workflow.open();
1034		},
1035
1036		/**
1037		 * Bind click event for .insert-media using event delegation
1038		 */
1039		init: function() {
1040			$(document.body)
1041				.on( 'click.add-media-button', '.insert-media', function( event ) {
1042					var elem = $( event.currentTarget ),
1043						editor = elem.data('editor'),
1044						options = {
1045							frame:    'post',
1046							state:    'insert',
1047							title:    wp.media.view.l10n.addMedia,
1048							multiple: true
1049						};
1050
1051					event.preventDefault();
1052
1053					if ( elem.hasClass( 'gallery' ) ) {
1054						options.state = 'gallery';
1055						options.title = wp.media.view.l10n.createGalleryTitle;
1056					}
1057
1058					wp.media.editor.open( editor, options );
1059				});
1060
1061			// Initialize and render the Editor drag-and-drop uploader.
1062			new wp.media.view.EditorUploader().render();
1063		}
1064	};
1065
1066	_.bindAll( wp.media.editor, 'open' );
1067	$( wp.media.editor.init );
1068}(jQuery, _));
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