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if ( widgetPartial ) {

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_.each( widgetPartial.placements(), function( placement ) {

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var isRemoved = (

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placement.context.sidebar_id === sidebarPartial.sidebarId ||

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( placement.context.sidebar_args && placement.context.sidebar_args.id === sidebarPartial.sidebarId )

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);

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if ( isRemoved ) {

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placement.container.remove();

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}

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} );

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}

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delete self.renderedWidgets[ removedWidgetId ];

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} );

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// Handle insertion of widgets.

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widgetsAdded = _.difference( newWidgetIds, oldWidgetIds );

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_.each( widgetsAdded, function( addedWidgetId ) {

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var widgetPartial = sidebarPartial.ensureWidgetPlacementContainers( addedWidgetId );

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addedWidgetPartials.push( widgetPartial );

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self.renderedWidgets[ addedWidgetId ] = true;

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} );

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_.each( addedWidgetPartials, function( widgetPartial ) {

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widgetPartial.refresh();

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} );

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api.selectiveRefresh.trigger( 'sidebar-updated', sidebarPartial );

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/**

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* Refreshes the sidebar partial.

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* Note that the meat is handled in handleSettingChange because it has the

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* context of which widgets were removed.

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* @since 4.5.0

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* @return {Promise} A promise postponing the refresh.

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refresh: function() {

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var partial = this, deferred = $.Deferred();

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deferred.fail( function() {

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partial.fallback();

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} );

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if ( 0 === partial.placements().length ) {

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deferred.reject();

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} else {

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_.each( partial.reflowWidgets(), function( sidebarPlacement ) {

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api.selectiveRefresh.trigger( 'partial-content-rendered', sidebarPlacement );

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} );

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deferred.resolve();

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}

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return deferred.promise();

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}

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});

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api.selectiveRefresh.partialConstructor.sidebar = self.SidebarPartial;

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api.selectiveRefresh.partialConstructor.widget = self.WidgetPartial;

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/**

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* Adds partials for the registered widget areas (sidebars).

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* @since 4.5.0

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* @return {void}

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self.addPartials = function() {

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_.each( self.registeredSidebars, function( registeredSidebar ) {

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var partial, partialId = 'sidebar[' + registeredSidebar.id + ']';

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partial = api.selectiveRefresh.partial( partialId );

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if ( ! partial ) {

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partial = new self.SidebarPartial( partialId, {

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params: {

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sidebarArgs: registeredSidebar

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}

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} );

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api.selectiveRefresh.partial.add( partial );

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}

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} );

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};

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/**

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* Calculates the selector for the sidebar's widgets based on the registered

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* sidebar's info.

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* @memberOf wp.customize.widgetsPreview

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* @since 3.9.0

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* @return {void}

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self.buildWidgetSelectors = function() {

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var self = this;

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$.each( self.registeredSidebars, function( i, sidebar ) {

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var widgetTpl = [

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sidebar.before_widget,

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sidebar.before_title,

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sidebar.after_title,

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sidebar.after_widget

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].join( '' ),

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emptyWidget,

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widgetSelector,

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widgetClasses;

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emptyWidget = $( widgetTpl );

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widgetSelector = emptyWidget.prop( 'tagName' ) || '';

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widgetClasses = emptyWidget.prop( 'className' ) || '';

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// Prevent a rare case when before_widget, before_title, after_title and after_widget is empty.

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if ( ! widgetClasses ) {

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return;

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}

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// Remove class names that incorporate the string formatting placeholders %1$s and %2$s.

[617] Fix | Delete

widgetClasses = widgetClasses.replace( /\S*%[12]\$s\S*/g, '' );

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widgetClasses = widgetClasses.replace( /^\s+|\s+$/g, '' );

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if ( widgetClasses ) {

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widgetSelector += '.' + widgetClasses.split( /\s+/ ).join( '.' );

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}

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self.widgetSelectors.push( widgetSelector );

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});

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};

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/**

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* Highlights the widget on widget updates or widget control mouse overs.

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* @memberOf wp.customize.widgetsPreview

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* @since 3.9.0

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* @param {string} widgetId ID of the widget.

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* @return {void}

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self.highlightWidget = function( widgetId ) {

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var $body = $( document.body ),

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$widget = $( '#' + widgetId );

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$body.find( '.widget-customizer-highlighted-widget' ).removeClass( 'widget-customizer-highlighted-widget' );

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$widget.addClass( 'widget-customizer-highlighted-widget' );

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setTimeout( function() {

[644] Fix | Delete

$widget.removeClass( 'widget-customizer-highlighted-widget' );

[645] Fix | Delete

}, 500 );

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};

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[648] Fix | Delete

/**

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* Shows a title and highlights widgets on hover. On shift+clicking focuses the

[650] Fix | Delete

* widget control.

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* @memberOf wp.customize.widgetsPreview

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* @since 3.9.0

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* @return {void}

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self.highlightControls = function() {

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var self = this,

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selector = this.widgetSelectors.join( ',' );

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// Skip adding highlights if not in the customizer preview iframe.

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if ( ! api.settings.channel ) {

[664] Fix | Delete

return;

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}

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$( selector ).attr( 'title', this.l10n.widgetTooltip );

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// Highlights widget when entering the widget editor.

[669] Fix | Delete

$( document ).on( 'mouseenter', selector, function() {

[670] Fix | Delete

self.preview.send( 'highlight-widget-control', $( this ).prop( 'id' ) );

[671] Fix | Delete

});

[672] Fix | Delete

[673] Fix | Delete

// Open expand the widget control when shift+clicking the widget element.

[674] Fix | Delete

$( document ).on( 'click', selector, function( e ) {

[675] Fix | Delete

if ( ! e.shiftKey ) {

[676] Fix | Delete

return;

[677] Fix | Delete

}

[678] Fix | Delete

e.preventDefault();

[679] Fix | Delete

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self.preview.send( 'focus-widget-control', $( this ).prop( 'id' ) );

[681] Fix | Delete

});

[682] Fix | Delete

};

[683] Fix | Delete

[684] Fix | Delete

/**

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* Parses a widget ID.

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* @memberOf wp.customize.widgetsPreview

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[689] Fix | Delete

* @since 4.5.0

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* @param {string} widgetId The widget ID.

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* @return {{idBase: string, number: number|null}} An object containing the idBase

[694] Fix | Delete

* and number of the parsed widget ID.

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self.parseWidgetId = function( widgetId ) {

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var matches, parsed = {

[698] Fix | Delete

idBase: '',

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number: null

[700] Fix | Delete

};

[701] Fix | Delete

[702] Fix | Delete

matches = widgetId.match( /^(.+)-(\d+)$/ );

[703] Fix | Delete

if ( matches ) {

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parsed.idBase = matches[1];

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parsed.number = parseInt( matches[2], 10 );

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} else {

[707] Fix | Delete

parsed.idBase = widgetId; // Likely an old single widget.

[708] Fix | Delete

}

[709] Fix | Delete

[710] Fix | Delete

return parsed;

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};

[712] Fix | Delete

[713] Fix | Delete

/**

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* Parses a widget setting ID.

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* @memberOf wp.customize.widgetsPreview

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[718] Fix | Delete

* @since 4.5.0

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* @param {string} settingId Widget setting ID.

[721] Fix | Delete

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* @return {{idBase: string, number: number|null}|null} Either an object containing the idBase

[723] Fix | Delete

* and number of the parsed widget setting ID,

[724] Fix | Delete

* or null.

[725] Fix | Delete

[726] Fix | Delete

self.parseWidgetSettingId = function( settingId ) {

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var matches, parsed = {

[728] Fix | Delete

idBase: '',

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number: null

[730] Fix | Delete

};

[731] Fix | Delete

[732] Fix | Delete

matches = settingId.match( /^widget_([^\[]+?)(?:\[(\d+)])?$/ );

[733] Fix | Delete

if ( ! matches ) {

[734] Fix | Delete

return null;

[735] Fix | Delete

}

[736] Fix | Delete

parsed.idBase = matches[1];

[737] Fix | Delete

if ( matches[2] ) {

[738] Fix | Delete

parsed.number = parseInt( matches[2], 10 );

[739] Fix | Delete

}

[740] Fix | Delete

return parsed;

[741] Fix | Delete

};

[742] Fix | Delete

[743] Fix | Delete

/**

[744] Fix | Delete

* Converts a widget ID into a Customizer setting ID.

[745] Fix | Delete

[746] Fix | Delete

* @memberOf wp.customize.widgetsPreview

[747] Fix | Delete

[748] Fix | Delete

* @since 4.5.0

[749] Fix | Delete

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* @param {string} widgetId The widget ID.

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[752] Fix | Delete

* @return {string} The setting ID.

[753] Fix | Delete

[754] Fix | Delete

self.getWidgetSettingId = function( widgetId ) {

[755] Fix | Delete

var parsed = this.parseWidgetId( widgetId ), settingId;

[756] Fix | Delete

[757] Fix | Delete

settingId = 'widget_' + parsed.idBase;

[758] Fix | Delete

if ( parsed.number ) {

[759] Fix | Delete

settingId += '[' + String( parsed.number ) + ']';

[760] Fix | Delete

}

[761] Fix | Delete

[762] Fix | Delete

return settingId;

[763] Fix | Delete

};

[764] Fix | Delete

[765] Fix | Delete

api.bind( 'preview-ready', function() {

[766] Fix | Delete

$.extend( self, _wpWidgetCustomizerPreviewSettings );

[767] Fix | Delete

self.init();

[768] Fix | Delete

});

[769] Fix | Delete

[770] Fix | Delete

return self;

[771] Fix | Delete

})( jQuery, _, wp, wp.customize );

[772] Fix | Delete

[773] Fix | Delete