/**
 * @output wp-includes/js/media-editor.js
 */

/* global getUserSetting, tinymce, QTags */

// WordPress, TinyMCE, and Media
// -----------------------------
(function($, _){
/**
* Stores the editors' `wp.media.controller.Frame` instances.
*
* @static
*/
var workflows = {};

/**
* A helper mixin function to avoid truthy and falsey values being
*   passed as an input that expects booleans. If key is undefined in the map,
*   but has a default value, set it.
*
* @param {Object} attrs Map of props from a shortcode or settings.
* @param {string} key The key within the passed map to check for a value.
* @return {mixed|undefined} The original or coerced value of key within attrs.
*/
wp.media.coerce = function ( attrs, key ) {
if ( _.isUndefined( attrs[ key ] ) && ! _.isUndefined( this.defaults[ key ] ) ) {
attrs[ key ] = this.defaults[ key ];
} else if ( 'true' === attrs[ key ] ) {
attrs[ key ] = true;
} else if ( 'false' === attrs[ key ] ) {
attrs[ key ] = false;
}
return attrs[ key ];
};

/** @namespace wp.media.string */
wp.media.string = {
/**
* Joins the `props` and `attachment` objects,
* outputting the proper object format based on the
* attachment's type.
*
* @param {Object} [props={}] Attachment details (align, link, size, etc).
* @param {Object} attachment The attachment object, media version of Post.
* @return {Object} Joined props
*/
props: function( props, attachment ) {
var link, linkUrl, size, sizes,
defaultProps = wp.media.view.settings.defaultProps;

props = props ? _.clone( props ) : {};

if ( attachment && attachment.type ) {
props.type = attachment.type;
}

if ( 'image' === props.type ) {
props = _.defaults( props || {}, {
align:   defaultProps.align || getUserSetting( 'align', 'none' ),
size:    defaultProps.size  || getUserSetting( 'imgsize', 'medium' ),
url:     '',
classes: []
});
}

// All attachment-specific settings follow.
if ( ! attachment ) {
return props;
}

props.title = props.title || attachment.title;

link = props.link || defaultProps.link || getUserSetting( 'urlbutton', 'file' );
if ( 'file' === link || 'embed' === link ) {
linkUrl = attachment.url;
} else if ( 'post' === link ) {
linkUrl = attachment.link;
} else if ( 'custom' === link ) {
linkUrl = props.linkUrl;
}
props.linkUrl = linkUrl || '';

// Format properties for images.
if ( 'image' === attachment.type ) {
props.classes.push( 'wp-image-' + attachment.id );

sizes = attachment.sizes;
size = sizes && sizes[ props.size ] ? sizes[ props.size ] : attachment;

_.extend( props, _.pick( attachment, 'align', 'caption', 'alt' ), {
width:     size.width,
height:    size.height,
src:       size.url,
captionId: 'attachment_' + attachment.id
});
} else if ( 'video' === attachment.type || 'audio' === attachment.type ) {
_.extend( props, _.pick( attachment, 'title', 'type', 'icon', 'mime' ) );
// Format properties for non-images.
} else {
props.title = props.title || attachment.filename;
props.rel = props.rel || 'attachment wp-att-' + attachment.id;
}

return props;
},
/**
* Create link markup that is suitable for passing to the editor
*
* @param {Object} props Attachment details (align, link, size, etc).
* @param {Object} attachment The attachment object, media version of Post.
* @return {string} The link markup
*/
link: function( props, attachment ) {
var options;

props = wp.media.string.props( props, attachment );

options = {
tag:     'a',
content: props.title,
attrs:   {
href: props.linkUrl
}
};

if ( props.rel ) {
options.attrs.rel = props.rel;
}

return wp.html.string( options );
},
/**
* Create an Audio shortcode string that is suitable for passing to the editor
*
* @param {Object} props Attachment details (align, link, size, etc).
* @param {Object} attachment The attachment object, media version of Post.
* @return {string} The audio shortcode
*/
audio: function( props, attachment ) {
return wp.media.string._audioVideo( 'audio', props, attachment );
},
/**
* Create a Video shortcode string that is suitable for passing to the editor
*
* @param {Object} props Attachment details (align, link, size, etc).
* @param {Object} attachment The attachment object, media version of Post.
* @return {string} The video shortcode
*/
video: function( props, attachment ) {
return wp.media.string._audioVideo( 'video', props, attachment );
},
/**
* Helper function to create a media shortcode string
*
* @access private
*
* @param {string} type The shortcode tag name: 'audio' or 'video'.
* @param {Object} props Attachment details (align, link, size, etc).
* @param {Object} attachment The attachment object, media version of Post.
* @return {string} The media shortcode
*/
_audioVideo: function( type, props, attachment ) {
var shortcode, html, extension;

props = wp.media.string.props( props, attachment );
if ( props.link !== 'embed' ) {
return wp.media.string.link( props );
}

shortcode = {};

if ( 'video' === type ) {
if ( attachment.image && -1 === attachment.image.src.indexOf( attachment.icon ) ) {
shortcode.poster = attachment.image.src;
}

if ( attachment.width ) {
shortcode.width = attachment.width;
}

if ( attachment.height ) {
shortcode.height = attachment.height;
}
}

extension = attachment.filename.split('.').pop();

if ( _.contains( wp.media.view.settings.embedExts, extension ) ) {
shortcode[extension] = attachment.url;
} else {
// Render unsupported audio and video files as links.
return wp.media.string.link( props );
}

html = wp.shortcode.string({
tag:     type,
attrs:   shortcode
});

return html;
},
/**
* Create image markup, optionally with a link and/or wrapped in a caption shortcode,
*  that is suitable for passing to the editor
*
* @param {Object} props Attachment details (align, link, size, etc).
* @param {Object} attachment The attachment object, media version of Post.
* @return {string}
*/
image: function( props, attachment ) {
var img = {},
options, classes, shortcode, html;

props.type = 'image';
props = wp.media.string.props( props, attachment );
classes = props.classes || [];

img.src = ! _.isUndefined( attachment ) ? attachment.url : props.url;
_.extend( img, _.pick( props, 'width', 'height', 'alt' ) );

// Only assign the align class to the image if we're not printing
// a caption, since the alignment is sent to the shortcode.
if ( props.align && ! props.caption ) {
classes.push( 'align' + props.align );
}

if ( props.size ) {
classes.push( 'size-' + props.size );
}

img['class'] = _.compact( classes ).join(' ');

// Generate `img` tag options.
options = {
tag:    'img',
attrs:  img,
single: true
};

// Generate the `a` element options, if they exist.
if ( props.linkUrl ) {
options = {
tag:   'a',
attrs: {
href: props.linkUrl
},
content: options
};
}

html = wp.html.string( options );

// Generate the caption shortcode.
if ( props.caption ) {
shortcode = {};

if ( img.width ) {
shortcode.width = img.width;
}

if ( props.captionId ) {
shortcode.id = props.captionId;
}

if ( props.align ) {
shortcode.align = 'align' + props.align;
}

html = wp.shortcode.string({
tag:     'caption',
attrs:   shortcode,
content: html + ' ' + props.caption
});
}

return html;
}
};

wp.media.embed = {
coerce : wp.media.coerce,

defaults : {
url : '',
width: '',
height: ''
},

edit : function( data, isURL ) {
var frame, props = {}, shortcode;

if ( isURL ) {
props.url = data.replace(/<[^>]+>/g, '');
} else {
shortcode = wp.shortcode.next( 'embed', data ).shortcode;

props = _.defaults( shortcode.attrs.named, this.defaults );
if ( shortcode.content ) {
props.url = shortcode.content;
}
}

frame = wp.media({
frame: 'post',
state: 'embed',
metadata: props
});

return frame;
},

shortcode : function( model ) {
var self = this, content;

_.each( this.defaults, function( value, key ) {
model[ key ] = self.coerce( model, key );

if ( value === model[ key ] ) {
delete model[ key ];
}
});

content = model.url;
delete model.url;

return new wp.shortcode({
tag: 'embed',
attrs: model,
content: content
});
}
};

/**
* @class wp.media.collection
*
* @param {Object} attributes
*/
wp.media.collection = function(attributes) {
var collections = {};

return _.extend(/** @lends wp.media.collection.prototype */{
coerce : wp.media.coerce,
/**
* Retrieve attachments based on the properties of the passed shortcode
*
* @param {wp.shortcode} shortcode An instance of wp.shortcode().
* @return {wp.media.model.Attachments} A Backbone.Collection containing
*                                      the media items belonging to a collection.
*                                      The query[ this.tag ] property is a Backbone.Model
*                                      containing the 'props' for the collection.
*/
attachments: function( shortcode ) {
var shortcodeString = shortcode.string(),
result = collections[ shortcodeString ],
attrs, args, query, others, self = this;

delete collections[ shortcodeString ];
if ( result ) {
return result;
}
// Fill the default shortcode attributes.
attrs = _.defaults( shortcode.attrs.named, this.defaults );
args  = _.pick( attrs, 'orderby', 'order' );

args.type    = this.type;
args.perPage = -1;

// Mark the `orderby` override attribute.
if ( undefined !== attrs.orderby ) {
attrs._orderByField = attrs.orderby;
}

if ( 'rand' === attrs.orderby ) {
attrs._orderbyRandom = true;
}

// Map the `orderby` attribute to the corresponding model property.
if ( ! attrs.orderby || /^menu_order(?: ID)?$/i.test( attrs.orderby ) ) {
args.orderby = 'menuOrder';
}

// Map the `ids` param to the correct query args.
if ( attrs.ids ) {
args.post__in = attrs.ids.split(',');
args.orderby  = 'post__in';
} else if ( attrs.include ) {
args.post__in = attrs.include.split(',');
}

if ( attrs.exclude ) {
args.post__not_in = attrs.exclude.split(',');
}

if ( ! args.post__in ) {
args.uploadedTo = attrs.id;
}

// Collect the attributes that were not included in `args`.
others = _.omit( attrs, 'id', 'ids', 'include', 'exclude', 'orderby', 'order' );

_.each( this.defaults, function( value, key ) {
others[ key ] = self.coerce( others, key );
});

query = wp.media.query( args );
query[ this.tag ] = new Backbone.Model( others );
return query;
},
/**
* Triggered when clicking 'Insert {label}' or 'Update {label}'
*
* @param {wp.media.model.Attachments} attachments A Backbone.Collection containing
*      the media items belonging to a collection.
*      The query[ this.tag ] property is a Backbone.Model
*          containing the 'props' for the collection.
* @return {wp.shortcode}
*/
shortcode: function( attachments ) {
var props = attachments.props.toJSON(),
attrs = _.pick( props, 'orderby', 'order' ),
shortcode, clone;

if ( attachments.type ) {
attrs.type = attachments.type;
delete attachments.type;
}

if ( attachments[this.tag] ) {
_.extend( attrs, attachments[this.tag].toJSON() );
}

/*
* Convert all gallery shortcodes to use the `ids` property.
* Ignore `post__in` and `post__not_in`; the attachments in
* the collection will already reflect those properties.
*/
attrs.ids = attachments.pluck('id');

// Copy the `uploadedTo` post ID.
if ( props.uploadedTo ) {
attrs.id = props.uploadedTo;
}
// Check if the gallery is randomly ordered.
delete attrs.orderby;

if ( attrs._orderbyRandom ) {
attrs.orderby = 'rand';
} else if ( attrs._orderByField && 'rand' !== attrs._orderByField ) {
attrs.orderby = attrs._orderByField;
}

delete attrs._orderbyRandom;
delete attrs._orderByField;

// If the `ids` attribute is set and `orderby` attribute
// is the default value, clear it for cleaner output.
if ( attrs.ids && 'post__in' === attrs.orderby ) {
delete attrs.orderby;
}

attrs = this.setDefaults( attrs );

shortcode = new wp.shortcode({
tag:    this.tag,
attrs:  attrs,
type:   'single'
});

// Use a cloned version of the gallery.
clone = new wp.media.model.Attachments( attachments.models, {
props: props
});
clone[ this.tag ] = attachments[ this.tag ];
collections[ shortcode.string() ] = clone;

return shortcode;
},
/**
* Triggered when double-clicking a collection shortcode placeholder
*   in the editor
*
* @param {string} content Content that is searched for possible
*    shortcode markup matching the passed tag name,
*
* @this wp.media.{prop}
*
* @return {wp.media.view.MediaFrame.Select} A media workflow.
*/
edit: function( content ) {
var shortcode = wp.shortcode.next( this.tag, content ),
defaultPostId = this.defaults.id,
attachments, selection, state;

// Bail if we didn't match the shortcode or all of the content.
if ( ! shortcode || shortcode.content !== content ) {
return;
}

// Ignore the rest of the match object.
shortcode = shortcode.shortcode;

if ( _.isUndefined( shortcode.get('id') ) && ! _.isUndefined( defaultPostId ) ) {
shortcode.set( 'id', defaultPostId );
}

attachments = this.attachments( shortcode );

selection = new wp.media.model.Selection( attachments.models, {
props:    attachments.props.toJSON(),
multiple: true
});

selection[ this.tag ] = attachments[ this.tag ];

// Fetch the query's attachments, and then break ties from the
// query to allow for sorting.
selection.more().done( function() {
// Break ties with the query.
selection.props.set({ query: false });
selection.unmirror();
selection.props.unset('orderby');
});

// Destroy the previous gallery frame.
if ( this.frame ) {
this.frame.dispose();
}

if ( shortcode.attrs.named.type && 'video' === shortcode.attrs.named.type ) {
state = 'video-' + this.tag + '-edit';
} else {
state = this.tag + '-edit';
}

// Store the current frame.
this.frame = wp.media({
frame:     'post',
state:     state,
title:     this.editTitle,
editing:   true,
multiple:  true,
selection: selection
}).open();

return this.frame;
},

setDefaults: function( attrs ) {
var self = this;
// Remove default attributes from the shortcode.
_.each( this.defaults, function( value, key ) {
attrs[ key ] = self.coerce( attrs, key );
if ( value === attrs[ key ] ) {
delete attrs[ key ];
}
});

return attrs;
}
}, attributes );
};

wp.media._galleryDefaults = {
itemtag: 'dl',
icontag: 'dt',
captiontag: 'dd',
columns: '3',
link: 'post',
size: 'thumbnail',
order: 'ASC',
id: wp.media.view.settings.post && wp.media.view.settings.post.id,
orderby : 'menu_order ID'
};

if ( wp.media.view.settings.galleryDefaults ) {
wp.media.galleryDefaults = _.extend( {}, wp.media._galleryDefaults, wp.media.view.settings.galleryDefaults );
} else {
wp.media.galleryDefaults = wp.media._galleryDefaults;
}

wp.media.gallery = new wp.media.collection({
tag: 'gallery',
type : 'image',
editTitle : wp.media.view.l10n.editGalleryTitle,
defaults : wp.media.galleryDefaults,

setDefaults: function( attrs ) {
var self = this, changed = ! _.isEqual( wp.media.galleryDefaults, wp.media._galleryDefaults );
_.each( this.defaults, function( value, key ) {
attrs[ key ] = self.coerce( attrs, key );
if ( value === attrs[ key ] && ( ! changed || value === wp.media._galleryDefaults[ key ] ) ) {
delete attrs[ key ];
}
} );
return attrs;
}
});

/**
* @namespace wp.media.featuredImage
* @memberOf wp.media
*/
wp.media.featuredImage = {
/**
* Get the featured image post ID
*
* @return {wp.media.view.settings.post.featuredImageId|number}
*/
get: function() {
return wp.media.view.settings.post.featuredImageId;
},
/**
* Sets the featured image ID property and sets the HTML in the post meta box to the new featured image.
*
* @param {number} id The post ID of the featured image, or -1 to unset it.
*/
set: function( id ) {
var settings = wp.media.view.settings;

settings.post.featuredImageId = id;

wp.media.post( 'get-post-thumbnail-html', {
post_id:      settings.post.id,
thumbnail_id: settings.post.featuredImageId,
_wpnonce:     settings.post.nonce
}).done( function( html ) {
if ( '0' === html ) {
window.alert( wp.i18n.__( 'Could not set that as the thumbnail image. Try a different attachment.' ) );
return;
}
$( '.inside', '#postimagediv' ).html( html );
});
},
/**
* Remove the featured image id, save the post thumbnail data and
* set the HTML in the post meta box to no featured image.
*/
remove: function() {
wp.media.featuredImage.set( -1 );
},
/**
* The Featured Image workflow
*
* @this wp.media.featuredImage
*
* @return {wp.media.view.MediaFrame.Select} A media workflow.
*/
frame: function() {
if ( this._frame ) {
wp.media.frame = this._frame;
return this._frame;
}

this._frame = wp.media({
state: 'featured-image',
states: [ new wp.media.controller.FeaturedImage() , new wp.media.controller.EditImage() ]
});

this._frame.on( 'toolbar:create:featured-image', function( toolbar ) {
/**
* @this wp.media.view.MediaFrame.Select
*/
this.createSelectToolbar( toolbar, {
text: wp.media.view.l10n.setFeaturedImage
});
}, this._frame );

this._frame.on( 'content:render:edit-image', function() {
var selection = this.state('featured-image').get('selection'),
view = new wp.media.view.EditImage( { model: selection.single(), controller: this } ).render();

this.content.set( view );

// After bringing in the frame, load the actual editor via an Ajax call.
view.loadEditor();

}, this._frame );

this._frame.state('featured-image').on( 'select', this.select );
return this._frame;
},
/**
* 'select' callback for Featured Image workflow, triggered when
*  the 'Set Featured Image' button is clicked in the media modal.
*
* @this wp.media.controller.FeaturedImage
*/
select: function() {
var selection = this.get('selection').single();

if ( ! wp.media.view.settings.post.featuredImageId ) {
return;
}

wp.media.featuredImage.set( selection ? selection.id : -1 );
},
/**
* Open the content media manager to the 'featured image' tab when
* the post thumbnail is clicked.
*
* Update the featured image id when the 'remove' link is clicked.
*/
init: function() {
$('#postimagediv').on( 'click', '#set-post-thumbnail', function( event ) {
event.preventDefault();
// Stop propagation to prevent thickbox from activating.
event.stopPropagation();

wp.media.featuredImage.frame().open();
}).on( 'click', '#remove-post-thumbnail', function() {
wp.media.featuredImage.remove();
return false;
});
}
};

$( wp.media.featuredImage.init );

/** @namespace wp.media.editor */
wp.media.editor = {
/**
* Send content to the editor
*
* @param {string} html Content to send to the editor
*/
insert: function( html ) {
var editor, wpActiveEditor,
hasTinymce = ! _.isUndefined( window.tinymce ),
hasQuicktags = ! _.isUndefined( window.QTags );

if ( this.activeEditor ) {
wpActiveEditor = window.wpActiveEditor = this.activeEditor;
} else {
wpActiveEditor = window.wpActiveEditor;
}

/*
* Delegate to the global `send_to_editor` if it exists.
* This attempts to play nice with any themes/plugins
* that have overridden the insert functionality.
*/
if ( window.send_to_editor ) {
return window.send_to_editor.apply( this, arguments );
}

if ( ! wpActiveEditor ) {
if ( hasTinymce && tinymce.activeEditor ) {
editor = tinymce.activeEditor;
wpActiveEditor = window.wpActiveEditor = editor.id;
} else if ( ! hasQuicktags ) {
return false;
}
} else if ( hasTinymce ) {
editor = tinymce.get( wpActiveEditor );
}

if ( editor && ! editor.isHidden() ) {
editor.execCommand( 'mceInsertContent', false, html );
} else if ( hasQuicktags ) {
QTags.insertContent( html );
} else {
document.getElementById( wpActiveEditor ).value += html;
}

// If the old thickbox remove function exists, call it in case
// a theme/plugin overloaded it.
if ( window.tb_remove ) {
try { window.tb_remove(); } catch( e ) {}
}
},

/**
* Setup 'workflow' and add to the 'workflows' cache. 'open' can
*  subsequently be called upon it.
*
* @param {string} id A slug used to identify the workflow.
* @param {Object} [options={}]
*
* @this wp.media.editor
*
* @return {wp.media.view.MediaFrame.Select} A media workflow.
*/
add: function( id, options ) {
var workflow = this.get( id );

// Only add once: if exists return existing.
if ( workflow ) {
return workflow;
}

workflow = workflows[ id ] = wp.media( _.defaults( options || {}, {
frame:    'post',
state:    'insert',
title:    wp.media.view.l10n.addMedia,
multiple: true
} ) );

workflow.on( 'insert', function( selection ) {
var state = workflow.state();

selection = selection || state.get('selection');

if ( ! selection ) {
return;
}

$.when.apply( $, selection.map( function( attachment ) {
var display = state.display( attachment ).toJSON();
/**
* @this wp.media.editor
*/
return this.send.attachment( display, attachment.toJSON() );
}, this ) ).done( function() {
wp.media.editor.insert( _.toArray( arguments ).join('\n\n') );
});
}, this );

workflow.state('gallery-edit').on( 'update', function( selection ) {
/**
* @this wp.media.editor
*/
this.insert( wp.media.gallery.shortcode( selection ).string() );
}, this );

workflow.state('playlist-edit').on( 'update', function( selection ) {
/**
* @this wp.media.editor
*/
this.insert( wp.media.playlist.shortcode( selection ).string() );
}, this );

workflow.state('video-playlist-edit').on( 'update', function( selection ) {
/**
* @this wp.media.editor
*/
this.insert( wp.media.playlist.shortcode( selection ).string() );
}, this );

workflow.state('embed').on( 'select', function() {
/**
* @this wp.media.editor
*/
var state = workflow.state(),
type = state.get('type'),
embed = state.props.toJSON();

embed.url = embed.url || '';

if ( 'link' === type ) {
_.defaults( embed, {
linkText: embed.url,
linkUrl: embed.url
});

this.send.link( embed ).done( function( resp ) {
wp.media.editor.insert( resp );
});

} else if ( 'image' === type ) {
_.defaults( embed, {
title:   embed.url,
linkUrl: '',
align:   'none',
link:    'none'
});

if ( 'none' === embed.link ) {
embed.linkUrl = '';
} else if ( 'file' === embed.link ) {
embed.linkUrl = embed.url;
}

this.insert( wp.media.string.image( embed ) );
}
}, this );

workflow.state('featured-image').on( 'select', wp.media.featuredImage.select );
workflow.setState( workflow.options.state );
return workflow;
},
/**
* Determines the proper current workflow id
*
* @param {string} [id=''] A slug used to identify the workflow.
*
* @return {wpActiveEditor|string|tinymce.activeEditor.id}
*/
id: function( id ) {
if ( id ) {
return id;
}

// If an empty `id` is provided, default to `wpActiveEditor`.
id = window.wpActiveEditor;

// If that doesn't work, fall back to `tinymce.activeEditor.id`.
if ( ! id && ! _.isUndefined( window.tinymce ) && tinymce.activeEditor ) {
id = tinymce.activeEditor.id;
}

// Last but not least, fall back to the empty string.
id = id || '';
return id;
},
/**
* Return the workflow specified by id
*
* @param {string} id A slug used to identify the workflow.
*
* @this wp.media.editor
*
* @return {wp.media.view.MediaFrame} A media workflow.
*/
get: function( id ) {
id = this.id( id );
return workflows[ id ];
},
/**
* Remove the workflow represented by id from the workflow cache
*
* @param {string} id A slug used to identify the workflow.
*
* @this wp.media.editor
*/
remove: function( id ) {
id = this.id( id );
delete workflows[ id ];
},
/** @namespace wp.media.editor.send */
send: {
/**
* Called when sending an attachment to the editor
*   from the medial modal.
*
* @param {Object} props Attachment details (align, link, size, etc).
* @param {Object} attachment The attachment object, media version of Post.
* @return {Promise}
*/
attachment: function( props, attachment ) {
var caption = attachment.caption,
options, html;

// If captions are disabled, clear the caption.
if ( ! wp.media.view.settings.captions ) {
delete attachment.caption;
}

props = wp.media.string.props( props, attachment );

options = {
id:           attachment.id,
post_content: attachment.description,
post_excerpt: caption
};

if ( props.linkUrl ) {
options.url = props.linkUrl;
}

if ( 'image' === attachment.type ) {
html = wp.media.string.image( props );

_.each({
align: 'align',
size:  'image-size',
alt:   'image_alt'
}, function( option, prop ) {
if ( props[ prop ] ) {
options[ option ] = props[ prop ];
}
});
} else if ( 'video' === attachment.type ) {
html = wp.media.string.video( props, attachment );
} else if ( 'audio' === attachment.type ) {
html = wp.media.string.audio( props, attachment );
} else {
html = wp.media.string.link( props );
options.post_title = props.title;
}

return wp.media.post( 'send-attachment-to-editor', {
nonce:      wp.media.view.settings.nonce.sendToEditor,
attachment: options,
html:       html,
post_id:    wp.media.view.settings.post.id
});
},
/**
* Called when 'Insert From URL' source is not an image. Example: YouTube url.
*
* @param {Object} embed
* @return {Promise}
*/
link: function( embed ) {
return wp.media.post( 'send-link-to-editor', {
nonce:     wp.media.view.settings.nonce.sendToEditor,
src:       embed.linkUrl,
link_text: embed.linkText,
html:      wp.media.string.link( embed ),
post_id:   wp.media.view.settings.post.id
});
}
},
/**
* Open a workflow
*
* @param {string} [id=undefined] Optional. A slug used to identify the workflow.
* @param {Object} [options={}]
*
* @this wp.media.editor
*
* @return {wp.media.view.MediaFrame}
*/
open: function( id, options ) {
var workflow;

options = options || {};

id = this.id( id );
this.activeEditor = id;

workflow = this.get( id );

// Redo workflow if state has changed.
if ( ! workflow || ( workflow.options && options.state !== workflow.options.state ) ) {
workflow = this.add( id, options );
}

wp.media.frame = workflow;

return workflow.open();
},

/**
* Bind click event for .insert-media using event delegation
*/
init: function() {
$(document.body)
.on( 'click.add-media-button', '.insert-media', function( event ) {
var elem = $( event.currentTarget ),
editor = elem.data('editor'),
options = {
frame:    'post',
state:    'insert',
title:    wp.media.view.l10n.addMedia,
multiple: true
};

event.preventDefault();

if ( elem.hasClass( 'gallery' ) ) {
options.state = 'gallery';
options.title = wp.media.view.l10n.createGalleryTitle;
}

wp.media.editor.open( editor, options );
});

// Initialize and render the Editor drag-and-drop uploader.
new wp.media.view.EditorUploader().render();
}
};

_.bindAll( wp.media.editor, 'open' );
$( wp.media.editor.init );
}(jQuery, _));