diff -r 346c88efed21 -r 5e2f62d02dcd wp/wp-includes/js/media-grid.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/js/media-grid.js	Tue Jun 09 03:35:32 2015 +0200
@@ -0,0 +1,863 @@
+(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+/*globals wp */
+
+/**
+ * wp.media.controller.EditAttachmentMetadata
+ *
+ * A state for editing an attachment's metadata.
+ *
+ * @class
+ * @augments wp.media.controller.State
+ * @augments Backbone.Model
+ */
+var l10n = wp.media.view.l10n,
+	EditAttachmentMetadata;
+
+EditAttachmentMetadata = wp.media.controller.State.extend({
+	defaults: {
+		id:      'edit-attachment',
+		// Title string passed to the frame's title region view.
+		title:   l10n.attachmentDetails,
+		// Region mode defaults.
+		content: 'edit-metadata',
+		menu:    false,
+		toolbar: false,
+		router:  false
+	}
+});
+
+module.exports = EditAttachmentMetadata;
+
+},{}],2:[function(require,module,exports){
+/*globals wp */
+
+var media = wp.media;
+
+media.controller.EditAttachmentMetadata = require( './controllers/edit-attachment-metadata.js' );
+media.view.MediaFrame.Manage = require( './views/frame/manage.js' );
+media.view.Attachment.Details.TwoColumn = require( './views/attachment/details-two-column.js' );
+media.view.MediaFrame.Manage.Router = require( './routers/manage.js' );
+media.view.EditImage.Details = require( './views/edit-image-details.js' );
+media.view.MediaFrame.EditAttachments = require( './views/frame/edit-attachments.js' );
+media.view.SelectModeToggleButton = require( './views/button/select-mode-toggle.js' );
+media.view.DeleteSelectedButton = require( './views/button/delete-selected.js' );
+media.view.DeleteSelectedPermanentlyButton = require( './views/button/delete-selected-permanently.js' );
+
+},{"./controllers/edit-attachment-metadata.js":1,"./routers/manage.js":3,"./views/attachment/details-two-column.js":4,"./views/button/delete-selected-permanently.js":5,"./views/button/delete-selected.js":6,"./views/button/select-mode-toggle.js":7,"./views/edit-image-details.js":8,"./views/frame/edit-attachments.js":9,"./views/frame/manage.js":10}],3:[function(require,module,exports){
+/*globals wp, Backbone */
+
+/**
+ * wp.media.view.MediaFrame.Manage.Router
+ *
+ * A router for handling the browser history and application state.
+ *
+ * @class
+ * @augments Backbone.Router
+ */
+var Router = Backbone.Router.extend({
+	routes: {
+		'upload.php?item=:slug':    'showItem',
+		'upload.php?search=:query': 'search'
+	},
+
+	// Map routes against the page URL
+	baseUrl: function( url ) {
+		return 'upload.php' + url;
+	},
+
+	// Respond to the search route by filling the search field and trigggering the input event
+	search: function( query ) {
+		jQuery( '#media-search-input' ).val( query ).trigger( 'input' );
+	},
+
+	// Show the modal with a specific item
+	showItem: function( query ) {
+		var media = wp.media,
+			library = media.frame.state().get('library'),
+			item;
+
+		// Trigger the media frame to open the correct item
+		item = library.findWhere( { id: parseInt( query, 10 ) } );
+		if ( item ) {
+			media.frame.trigger( 'edit:attachment', item );
+		} else {
+			item = media.attachment( query );
+			media.frame.listenTo( item, 'change', function( model ) {
+				media.frame.stopListening( item );
+				media.frame.trigger( 'edit:attachment', model );
+			} );
+			item.fetch();
+		}
+	}
+});
+
+module.exports = Router;
+
+},{}],4:[function(require,module,exports){
+/*globals wp */
+
+/**
+ * wp.media.view.Attachment.Details.TwoColumn
+ *
+ * A similar view to media.view.Attachment.Details
+ * for use in the Edit Attachment modal.
+ *
+ * @class
+ * @augments wp.media.view.Attachment.Details
+ * @augments wp.media.view.Attachment
+ * @augments wp.media.View
+ * @augments wp.Backbone.View
+ * @augments Backbone.View
+ */
+var Details = wp.media.view.Attachment.Details,
+	TwoColumn;
+
+TwoColumn = Details.extend({
+	template: wp.template( 'attachment-details-two-column' ),
+
+	editAttachment: function( event ) {
+		event.preventDefault();
+		this.controller.content.mode( 'edit-image' );
+	},
+
+	/**
+	 * Noop this from parent class, doesn't apply here.
+	 */
+	toggleSelectionHandler: function() {},
+
+	render: function() {
+		Details.prototype.render.apply( this, arguments );
+
+		wp.media.mixin.removeAllPlayers();
+		this.$( 'audio, video' ).each( function (i, elem) {
+			var el = wp.media.view.MediaDetails.prepareSrc( elem );
+			new window.MediaElementPlayer( el, wp.media.mixin.mejsSettings );
+		} );
+	}
+});
+
+module.exports = TwoColumn;
+
+},{}],5:[function(require,module,exports){
+/*globals wp */
+
+/**
+ * wp.media.view.DeleteSelectedPermanentlyButton
+ *
+ * When MEDIA_TRASH is true, a button that handles bulk Delete Permanently logic
+ *
+ * @class
+ * @augments wp.media.view.DeleteSelectedButton
+ * @augments wp.media.view.Button
+ * @augments wp.media.View
+ * @augments wp.Backbone.View
+ * @augments Backbone.View
+ */
+var Button = wp.media.view.Button,
+	DeleteSelected = wp.media.view.DeleteSelectedButton,
+	DeleteSelectedPermanently;
+
+DeleteSelectedPermanently = DeleteSelected.extend({
+	initialize: function() {
+		DeleteSelected.prototype.initialize.apply( this, arguments );
+		this.listenTo( this.controller, 'select:activate', this.selectActivate );
+		this.listenTo( this.controller, 'select:deactivate', this.selectDeactivate );
+	},
+
+	filterChange: function( model ) {
+		this.canShow = ( 'trash' === model.get( 'status' ) );
+	},
+
+	selectActivate: function() {
+		this.toggleDisabled();
+		this.$el.toggleClass( 'hidden', ! this.canShow );
+	},
+
+	selectDeactivate: function() {
+		this.toggleDisabled();
+		this.$el.addClass( 'hidden' );
+	},
+
+	render: function() {
+		Button.prototype.render.apply( this, arguments );
+		this.selectActivate();
+		return this;
+	}
+});
+
+module.exports = DeleteSelectedPermanently;
+
+},{}],6:[function(require,module,exports){
+/*globals wp */
+
+/**
+ * wp.media.view.DeleteSelectedButton
+ *
+ * A button that handles bulk Delete/Trash logic
+ *
+ * @class
+ * @augments wp.media.view.Button
+ * @augments wp.media.View
+ * @augments wp.Backbone.View
+ * @augments Backbone.View
+ */
+var Button = wp.media.view.Button,
+	l10n = wp.media.view.l10n,
+	DeleteSelected;
+
+DeleteSelected = Button.extend({
+	initialize: function() {
+		Button.prototype.initialize.apply( this, arguments );
+		if ( this.options.filters ) {
+			this.listenTo( this.options.filters.model, 'change', this.filterChange );
+		}
+		this.listenTo( this.controller, 'selection:toggle', this.toggleDisabled );
+	},
+
+	filterChange: function( model ) {
+		if ( 'trash' === model.get( 'status' ) ) {
+			this.model.set( 'text', l10n.untrashSelected );
+		} else if ( wp.media.view.settings.mediaTrash ) {
+			this.model.set( 'text', l10n.trashSelected );
+		} else {
+			this.model.set( 'text', l10n.deleteSelected );
+		}
+	},
+
+	toggleDisabled: function() {
+		this.model.set( 'disabled', ! this.controller.state().get( 'selection' ).length );
+	},
+
+	render: function() {
+		Button.prototype.render.apply( this, arguments );
+		if ( this.controller.isModeActive( 'select' ) ) {
+			this.$el.addClass( 'delete-selected-button' );
+		} else {
+			this.$el.addClass( 'delete-selected-button hidden' );
+		}
+		this.toggleDisabled();
+		return this;
+	}
+});
+
+module.exports = DeleteSelected;
+
+},{}],7:[function(require,module,exports){
+/*globals wp */
+
+/**
+ * wp.media.view.SelectModeToggleButton
+ *
+ * @class
+ * @augments wp.media.view.Button
+ * @augments wp.media.View
+ * @augments wp.Backbone.View
+ * @augments Backbone.View
+ */
+var Button = wp.media.view.Button,
+	l10n = wp.media.view.l10n,
+	SelectModeToggle;
+
+SelectModeToggle = Button.extend({
+	initialize: function() {
+		Button.prototype.initialize.apply( this, arguments );
+		this.listenTo( this.controller, 'select:activate select:deactivate', this.toggleBulkEditHandler );
+		this.listenTo( this.controller, 'selection:action:done', this.back );
+	},
+
+	back: function () {
+		this.controller.deactivateMode( 'select' ).activateMode( 'edit' );
+	},
+
+	click: function() {
+		Button.prototype.click.apply( this, arguments );
+		if ( this.controller.isModeActive( 'select' ) ) {
+			this.back();
+		} else {
+			this.controller.deactivateMode( 'edit' ).activateMode( 'select' );
+		}
+	},
+
+	render: function() {
+		Button.prototype.render.apply( this, arguments );
+		this.$el.addClass( 'select-mode-toggle-button' );
+		return this;
+	},
+
+	toggleBulkEditHandler: function() {
+		var toolbar = this.controller.content.get().toolbar, children;
+
+		children = toolbar.$( '.media-toolbar-secondary > *, .media-toolbar-primary > *' );
+
+		// TODO: the Frame should be doing all of this.
+		if ( this.controller.isModeActive( 'select' ) ) {
+			this.model.set( 'text', l10n.cancelSelection );
+			children.not( '.media-button' ).hide();
+			this.$el.show();
+			toolbar.$( '.delete-selected-button' ).removeClass( 'hidden' );
+		} else {
+			this.model.set( 'text', l10n.bulkSelect );
+			this.controller.content.get().$el.removeClass( 'fixed' );
+			toolbar.$el.css( 'width', '' );
+			toolbar.$( '.delete-selected-button' ).addClass( 'hidden' );
+			children.not( '.spinner, .media-button' ).show();
+			this.controller.state().get( 'selection' ).reset();
+		}
+	}
+});
+
+module.exports = SelectModeToggle;
+
+},{}],8:[function(require,module,exports){
+/*globals wp, _ */
+
+/**
+ * wp.media.view.EditImage.Details
+ *
+ * @class
+ * @augments wp.media.view.EditImage
+ * @augments wp.media.View
+ * @augments wp.Backbone.View
+ * @augments Backbone.View
+ */
+var View = wp.media.View,
+	EditImage = wp.media.view.EditImage,
+	Details;
+
+Details = EditImage.extend({
+	initialize: function( options ) {
+		this.editor = window.imageEdit;
+		this.frame = options.frame;
+		this.controller = options.controller;
+		View.prototype.initialize.apply( this, arguments );
+	},
+
+	back: function() {
+		this.frame.content.mode( 'edit-metadata' );
+	},
+
+	save: function() {
+		this.model.fetch().done( _.bind( function() {
+			this.frame.content.mode( 'edit-metadata' );
+		}, this ) );
+	}
+});
+
+module.exports = Details;
+
+},{}],9:[function(require,module,exports){
+/*globals wp, _, jQuery */
+
+/**
+ * wp.media.view.MediaFrame.EditAttachments
+ *
+ * A frame for editing the details of a specific media item.
+ *
+ * Opens in a modal by default.
+ *
+ * Requires an attachment model to be passed in the options hash under `model`.
+ *
+ * @class
+ * @augments wp.media.view.Frame
+ * @augments wp.media.View
+ * @augments wp.Backbone.View
+ * @augments Backbone.View
+ * @mixes wp.media.controller.StateMachine
+ */
+var Frame = wp.media.view.Frame,
+	MediaFrame = wp.media.view.MediaFrame,
+
+	$ = jQuery,
+	EditAttachments;
+
+EditAttachments = MediaFrame.extend({
+
+	className: 'edit-attachment-frame',
+	template:  wp.template( 'edit-attachment-frame' ),
+	regions:   [ 'title', 'content' ],
+
+	events: {
+		'click .left':  'previousMediaItem',
+		'click .right': 'nextMediaItem'
+	},
+
+	initialize: function() {
+		Frame.prototype.initialize.apply( this, arguments );
+
+		_.defaults( this.options, {
+			modal: true,
+			state: 'edit-attachment'
+		});
+
+		this.controller = this.options.controller;
+		this.gridRouter = this.controller.gridRouter;
+		this.library = this.options.library;
+
+		if ( this.options.model ) {
+			this.model = this.options.model;
+		}
+
+		this.bindHandlers();
+		this.createStates();
+		this.createModal();
+
+		this.title.mode( 'default' );
+		this.toggleNav();
+	},
+
+	bindHandlers: function() {
+		// Bind default title creation.
+		this.on( 'title:create:default', this.createTitle, this );
+
+		// Close the modal if the attachment is deleted.
+		this.listenTo( this.model, 'change:status destroy', this.close, this );
+
+		this.on( 'content:create:edit-metadata', this.editMetadataMode, this );
+		this.on( 'content:create:edit-image', this.editImageMode, this );
+		this.on( 'content:render:edit-image', this.editImageModeRender, this );
+		this.on( 'close', this.detach );
+	},
+
+	createModal: function() {
+		// Initialize modal container view.
+		if ( this.options.modal ) {
+			this.modal = new wp.media.view.Modal({
+				controller: this,
+				title:      this.options.title
+			});
+
+			this.modal.on( 'open', _.bind( function () {
+				$( 'body' ).on( 'keydown.media-modal', _.bind( this.keyEvent, this ) );
+			}, this ) );
+
+			// Completely destroy the modal DOM element when closing it.
+			this.modal.on( 'close', _.bind( function() {
+				this.modal.remove();
+				$( 'body' ).off( 'keydown.media-modal' ); /* remove the keydown event */
+				// Restore the original focus item if possible
+				$( 'li.attachment[data-id="' + this.model.get( 'id' ) +'"]' ).focus();
+				this.resetRoute();
+			}, this ) );
+
+			// Set this frame as the modal's content.
+			this.modal.content( this );
+			this.modal.open();
+		}
+	},
+
+	/**
+	 * Add the default states to the frame.
+	 */
+	createStates: function() {
+		this.states.add([
+			new wp.media.controller.EditAttachmentMetadata( { model: this.model } )
+		]);
+	},
+
+	/**
+	 * Content region rendering callback for the `edit-metadata` mode.
+	 *
+	 * @param {Object} contentRegion Basic object with a `view` property, which
+	 *                               should be set with the proper region view.
+	 */
+	editMetadataMode: function( contentRegion ) {
+		contentRegion.view = new wp.media.view.Attachment.Details.TwoColumn({
+			controller: this,
+			model:      this.model
+		});
+
+		/**
+		 * Attach a subview to display fields added via the
+		 * `attachment_fields_to_edit` filter.
+		 */
+		contentRegion.view.views.set( '.attachment-compat', new wp.media.view.AttachmentCompat({
+			controller: this,
+			model:      this.model
+		}) );
+
+		// Update browser url when navigating media details
+		if ( this.model ) {
+			this.gridRouter.navigate( this.gridRouter.baseUrl( '?item=' + this.model.id ) );
+		}
+	},
+
+	/**
+	 * Render the EditImage view into the frame's content region.
+	 *
+	 * @param {Object} contentRegion Basic object with a `view` property, which
+	 *                               should be set with the proper region view.
+	 */
+	editImageMode: function( contentRegion ) {
+		var editImageController = new wp.media.controller.EditImage( {
+			model: this.model,
+			frame: this
+		} );
+		// Noop some methods.
+		editImageController._toolbar = function() {};
+		editImageController._router = function() {};
+		editImageController._menu = function() {};
+
+		contentRegion.view = new wp.media.view.EditImage.Details( {
+			model: this.model,
+			frame: this,
+			controller: editImageController
+		} );
+	},
+
+	editImageModeRender: function( view ) {
+		view.on( 'ready', view.loadEditor );
+	},
+
+	toggleNav: function() {
+		this.$('.left').toggleClass( 'disabled', ! this.hasPrevious() );
+		this.$('.right').toggleClass( 'disabled', ! this.hasNext() );
+	},
+
+	/**
+	 * Rerender the view.
+	 */
+	rerender: function() {
+		// Only rerender the `content` region.
+		if ( this.content.mode() !== 'edit-metadata' ) {
+			this.content.mode( 'edit-metadata' );
+		} else {
+			this.content.render();
+		}
+
+		this.toggleNav();
+	},
+
+	/**
+	 * Click handler to switch to the previous media item.
+	 */
+	previousMediaItem: function() {
+		if ( ! this.hasPrevious() ) {
+			this.$( '.left' ).blur();
+			return;
+		}
+		this.model = this.library.at( this.getCurrentIndex() - 1 );
+		this.rerender();
+		this.$( '.left' ).focus();
+	},
+
+	/**
+	 * Click handler to switch to the next media item.
+	 */
+	nextMediaItem: function() {
+		if ( ! this.hasNext() ) {
+			this.$( '.right' ).blur();
+			return;
+		}
+		this.model = this.library.at( this.getCurrentIndex() + 1 );
+		this.rerender();
+		this.$( '.right' ).focus();
+	},
+
+	getCurrentIndex: function() {
+		return this.library.indexOf( this.model );
+	},
+
+	hasNext: function() {
+		return ( this.getCurrentIndex() + 1 ) < this.library.length;
+	},
+
+	hasPrevious: function() {
+		return ( this.getCurrentIndex() - 1 ) > -1;
+	},
+	/**
+	 * Respond to the keyboard events: right arrow, left arrow, except when
+	 * focus is in a textarea or input field.
+	 */
+	keyEvent: function( event ) {
+		if ( ( 'INPUT' === event.target.nodeName || 'TEXTAREA' === event.target.nodeName ) && ! ( event.target.readOnly || event.target.disabled ) ) {
+			return;
+		}
+
+		// The right arrow key
+		if ( 39 === event.keyCode ) {
+			this.nextMediaItem();
+		}
+		// The left arrow key
+		if ( 37 === event.keyCode ) {
+			this.previousMediaItem();
+		}
+	},
+
+	resetRoute: function() {
+		this.gridRouter.navigate( this.gridRouter.baseUrl( '' ) );
+	}
+});
+
+module.exports = EditAttachments;
+
+},{}],10:[function(require,module,exports){
+/*globals wp, _, Backbone */
+
+/**
+ * wp.media.view.MediaFrame.Manage
+ *
+ * A generic management frame workflow.
+ *
+ * Used in the media grid view.
+ *
+ * @class
+ * @augments wp.media.view.MediaFrame
+ * @augments wp.media.view.Frame
+ * @augments wp.media.View
+ * @augments wp.Backbone.View
+ * @augments Backbone.View
+ * @mixes wp.media.controller.StateMachine
+ */
+var MediaFrame = wp.media.view.MediaFrame,
+	Library = wp.media.controller.Library,
+
+	$ = Backbone.$,
+	Manage;
+
+Manage = MediaFrame.extend({
+	/**
+	 * @global wp.Uploader
+	 */
+	initialize: function() {
+		_.defaults( this.options, {
+			title:     '',
+			modal:     false,
+			selection: [],
+			library:   {}, // Options hash for the query to the media library.
+			multiple:  'add',
+			state:     'library',
+			uploader:  true,
+			mode:      [ 'grid', 'edit' ]
+		});
+
+		this.$body = $( document.body );
+		this.$window = $( window );
+		this.$adminBar = $( '#wpadminbar' );
+		this.$window.on( 'scroll resize', _.debounce( _.bind( this.fixPosition, this ), 15 ) );
+		$( document ).on( 'click', '.add-new-h2', _.bind( this.addNewClickHandler, this ) );
+
+		// Ensure core and media grid view UI is enabled.
+		this.$el.addClass('wp-core-ui');
+
+		// Force the uploader off if the upload limit has been exceeded or
+		// if the browser isn't supported.
+		if ( wp.Uploader.limitExceeded || ! wp.Uploader.browser.supported ) {
+			this.options.uploader = false;
+		}
+
+		// Initialize a window-wide uploader.
+		if ( this.options.uploader ) {
+			this.uploader = new wp.media.view.UploaderWindow({
+				controller: this,
+				uploader: {
+					dropzone:  document.body,
+					container: document.body
+				}
+			}).render();
+			this.uploader.ready();
+			$('body').append( this.uploader.el );
+
+			this.options.uploader = false;
+		}
+
+		this.gridRouter = new wp.media.view.MediaFrame.Manage.Router();
+
+		// Call 'initialize' directly on the parent class.
+		MediaFrame.prototype.initialize.apply( this, arguments );
+
+		// Append the frame view directly the supplied container.
+		this.$el.appendTo( this.options.container );
+
+		this.createStates();
+		this.bindRegionModeHandlers();
+		this.render();
+		this.bindSearchHandler();
+	},
+
+	bindSearchHandler: function() {
+		var search = this.$( '#media-search-input' ),
+			currentSearch = this.options.container.data( 'search' ),
+			searchView = this.browserView.toolbar.get( 'search' ).$el,
+			listMode = this.$( '.view-list' ),
+
+			input  = _.debounce( function (e) {
+				var val = $( e.currentTarget ).val(),
+					url = '';
+
+				if ( val ) {
+					url += '?search=' + val;
+				}
+				this.gridRouter.navigate( this.gridRouter.baseUrl( url ) );
+			}, 1000 );
+
+		// Update the URL when entering search string (at most once per second)
+		search.on( 'input', _.bind( input, this ) );
+		searchView.val( currentSearch ).trigger( 'input' );
+
+		this.gridRouter.on( 'route:search', function () {
+			var href = window.location.href;
+			if ( href.indexOf( 'mode=' ) > -1 ) {
+				href = href.replace( /mode=[^&]+/g, 'mode=list' );
+			} else {
+				href += href.indexOf( '?' ) > -1 ? '&mode=list' : '?mode=list';
+			}
+			href = href.replace( 'search=', 's=' );
+			listMode.prop( 'href', href );
+		} );
+	},
+
+	/**
+	 * Create the default states for the frame.
+	 */
+	createStates: function() {
+		var options = this.options;
+
+		if ( this.options.states ) {
+			return;
+		}
+
+		// Add the default states.
+		this.states.add([
+			new Library({
+				library:            wp.media.query( options.library ),
+				multiple:           options.multiple,
+				title:              options.title,
+				content:            'browse',
+				toolbar:            'select',
+				contentUserSetting: false,
+				filterable:         'all',
+				autoSelect:         false
+			})
+		]);
+	},
+
+	/**
+	 * Bind region mode activation events to proper handlers.
+	 */
+	bindRegionModeHandlers: function() {
+		this.on( 'content:create:browse', this.browseContent, this );
+
+		// Handle a frame-level event for editing an attachment.
+		this.on( 'edit:attachment', this.openEditAttachmentModal, this );
+
+		this.on( 'select:activate', this.bindKeydown, this );
+		this.on( 'select:deactivate', this.unbindKeydown, this );
+	},
+
+	handleKeydown: function( e ) {
+		if ( 27 === e.which ) {
+			e.preventDefault();
+			this.deactivateMode( 'select' ).activateMode( 'edit' );
+		}
+	},
+
+	bindKeydown: function() {
+		this.$body.on( 'keydown.select', _.bind( this.handleKeydown, this ) );
+	},
+
+	unbindKeydown: function() {
+		this.$body.off( 'keydown.select' );
+	},
+
+	fixPosition: function() {
+		var $browser, $toolbar;
+		if ( ! this.isModeActive( 'select' ) ) {
+			return;
+		}
+
+		$browser = this.$('.attachments-browser');
+		$toolbar = $browser.find('.media-toolbar');
+
+		// Offset doesn't appear to take top margin into account, hence +16
+		if ( ( $browser.offset().top + 16 ) < this.$window.scrollTop() + this.$adminBar.height() ) {
+			$browser.addClass( 'fixed' );
+			$toolbar.css('width', $browser.width() + 'px');
+		} else {
+			$browser.removeClass( 'fixed' );
+			$toolbar.css('width', '');
+		}
+	},
+
+	/**
+	 * Click handler for the `Add New` button.
+	 */
+	addNewClickHandler: function( event ) {
+		event.preventDefault();
+		this.trigger( 'toggle:upload:attachment' );
+	},
+
+	/**
+	 * Open the Edit Attachment modal.
+	 */
+	openEditAttachmentModal: function( model ) {
+		// Create a new EditAttachment frame, passing along the library and the attachment model.
+		wp.media( {
+			frame:       'edit-attachments',
+			controller:  this,
+			library:     this.state().get('library'),
+			model:       model
+		} );
+	},
+
+	/**
+	 * Create an attachments browser view within the content region.
+	 *
+	 * @param {Object} contentRegion Basic object with a `view` property, which
+	 *                               should be set with the proper region view.
+	 * @this wp.media.controller.Region
+	 */
+	browseContent: function( contentRegion ) {
+		var state = this.state();
+
+		// Browse our library of attachments.
+		this.browserView = contentRegion.view = new wp.media.view.AttachmentsBrowser({
+			controller: this,
+			collection: state.get('library'),
+			selection:  state.get('selection'),
+			model:      state,
+			sortable:   state.get('sortable'),
+			search:     state.get('searchable'),
+			filters:    state.get('filterable'),
+			date:       state.get('date'),
+			display:    state.get('displaySettings'),
+			dragInfo:   state.get('dragInfo'),
+			sidebar:    'errors',
+
+			suggestedWidth:  state.get('suggestedWidth'),
+			suggestedHeight: state.get('suggestedHeight'),
+
+			AttachmentView: state.get('AttachmentView'),
+
+			scrollElement: document
+		});
+		this.browserView.on( 'ready', _.bind( this.bindDeferred, this ) );
+
+		this.errors = wp.Uploader.errors;
+		this.errors.on( 'add remove reset', this.sidebarVisibility, this );
+	},
+
+	sidebarVisibility: function() {
+		this.browserView.$( '.media-sidebar' ).toggle( !! this.errors.length );
+	},
+
+	bindDeferred: function() {
+		if ( ! this.browserView.dfd ) {
+			return;
+		}
+		this.browserView.dfd.done( _.bind( this.startHistory, this ) );
+	},
+
+	startHistory: function() {
+		// Verify pushState support and activate
+		if ( window.history && window.history.pushState ) {
+			Backbone.history.start( {
+				root: window._wpMediaGridSettings.adminUrl,
+				pushState: true
+			} );
+		}
+	}
+});
+
+module.exports = Manage;
+
+},{}]},{},[2]);