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<title>[27892] trunk/src: Widget Customizer: Use postMessage to highlight widgets in preview or sections/controls in Customizer.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/27892">27892</a></dd>
<dt>Author</dt> <dd>ocean90</dd>
<dt>Date</dt> <dd>2014-04-01 15:25:56 +0000 (Tue, 01 Apr 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>Widget Customizer: Use postMessage to highlight widgets in preview or sections/controls in Customizer.

fixes <a href="http://core.trac.wordpress.org/ticket/27622">#27622</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadminjscustomizewidgetsjs">trunk/src/wp-admin/js/customize-widgets.js</a></li>
<li><a href="#trunksrcwpincludesjscustomizepreviewwidgetsjs">trunk/src/wp-includes/js/customize-preview-widgets.js</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadminjscustomizewidgetsjs"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/js/customize-widgets.js (27891 => 27892)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/js/customize-widgets.js       2014-04-01 12:37:43 UTC (rev 27891)
+++ trunk/src/wp-admin/js/customize-widgets.js  2014-04-01 15:25:56 UTC (rev 27892)
</span><span class="lines">@@ -140,6 +140,12 @@
</span><span class="cx">   */
</span><span class="cx">  self.init = function () {
</span><span class="cx">          this.availableWidgetsPanel.setup();
</span><ins>+
+               // Highlight widget control
+               this.previewer.bind( 'highlight-widget-control', self.highlightWidgetFormControl );
+
+               // Open and focus widget control
+               this.previewer.bind( 'focus-widget-control', self.focusWidgetFormControl );
</ins><span class="cx">   };
</span><span class="cx">  wp.customize.bind( 'ready', function () {
</span><span class="cx">          self.init();
</span><span class="lines">@@ -924,13 +930,14 @@
</span><span class="cx"> 
</span><span class="cx">                  // Highlight whenever hovering or clicking over the form
</span><span class="cx">                  control.container.on( 'mouseenter click', function () {
</span><del>-                               control.highlightPreviewWidget();
</del><ins>+                                control.setting.previewer.send( 'highlight-widget', control.params.widget_id );
+                               //control.highlightPreviewWidget();
</ins><span class="cx">                   } );
</span><span class="cx"> 
</span><span class="cx">                  // Highlight when the setting is updated
</span><span class="cx">                  control.setting.bind( function () {
</span><del>-                               control.scrollPreviewWidgetIntoView();
-                               control.highlightPreviewWidget();
</del><ins>+                                control.setting.previewer.send( 'highlight-widget', control.params.widget_id );
+                               //control.highlightPreviewWidget();
</ins><span class="cx">                   } );
</span><span class="cx"> 
</span><span class="cx">                  // Highlight when the widget form is expanded
</span><span class="lines">@@ -1482,16 +1489,6 @@
</span><span class="cx">          },
</span><span class="cx"> 
</span><span class="cx">          /**
</span><del>-                * Inverse of WidgetCustomizer.getControlInstanceForWidget
-                * @return {jQuery}
-                */
-               getPreviewWidgetElement: function () {
-                       var control = this,
-                               widget_customizer_preview = self.getPreviewWindow().wp.customize.WidgetCustomizerPreview;
-                       return widget_customizer_preview.getWidgetElement( control.params.widget_id );
-               },
-
-               /**
</del><span class="cx">            * Inside of the customizer preview, scroll the widget into view
</span><span class="cx">           */
</span><span class="cx">          scrollPreviewWidgetIntoView: function () {
</span><span class="lines">@@ -1515,21 +1512,6 @@
</span><span class="cx">                  setTimeout( function () {
</span><span class="cx">                          target_element.removeClass( 'widget-customizer-highlighted' );
</span><span class="cx">                  }, 500 );
</span><del>-               },
-
-               /**
-                * Add the widget-customizer-highlighted-widget class to the widget for 500ms
-                */
-               highlightPreviewWidget: function () {
-                       var control = this, widget_el, root_el;
-
-                       widget_el = control.getPreviewWidgetElement();
-                       root_el = widget_el.closest( 'html' );
-                       root_el.find( '.widget-customizer-highlighted-widget' ).removeClass( 'widget-customizer-highlighted-widget' );
-                       widget_el.addClass( 'widget-customizer-highlighted-widget' );
-                       setTimeout( function () {
-                               widget_el.removeClass( 'widget-customizer-highlighted-widget' );
-                       }, 500 );
</del><span class="cx">           }
</span><span class="cx"> 
</span><span class="cx">  } );
</span><span class="lines">@@ -1547,6 +1529,32 @@
</span><span class="cx">  } );
</span><span class="cx"> 
</span><span class="cx">  /**
</span><ins>+        * Highlight a widget control.
+        *
+        * @param {string} widgetId
+        */
+       self.highlightWidgetFormControl = function( widgetId ) {
+               var control = self.getWidgetFormControlForWidget( widgetId );
+
+               if ( control ) {
+                       control.highlightSectionAndControl();
+               }
+       },
+
+       /**
+        * Focus a widget control.
+        *
+        * @param {string} widgetId
+        */
+       self.focusWidgetFormControl = function( widgetId ) {
+               var control = self.getWidgetFormControlForWidget( widgetId );
+
+               if ( control ) {
+                       control.focus();
+               }
+       },
+
+       /**
</ins><span class="cx">    * Given a widget control, find the sidebar widgets control that contains it.
</span><span class="cx">   * @param {string} widget_id
</span><span class="cx">   * @return {object|null}
</span></span></pre></div>
<a id="trunksrcwpincludesjscustomizepreviewwidgetsjs"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-includes/js/customize-preview-widgets.js (27891 => 27892)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-includes/js/customize-preview-widgets.js    2014-04-01 12:37:43 UTC (rev 27891)
+++ trunk/src/wp-includes/js/customize-preview-widgets.js       2014-04-01 15:25:56 UTC (rev 27892)
</span><span class="lines">@@ -27,6 +27,8 @@
</span><span class="cx">                          self.preview.send( 'rendered-sidebars', self.renderedSidebars ); // @todo Only send array of IDs
</span><span class="cx">                          self.preview.send( 'rendered-widgets', self.renderedWidgets ); // @todo Only send array of IDs
</span><span class="cx">                  } );
</span><ins>+
+                       this.preview.bind( 'highlight-widget', self.highlightWidget );
</ins><span class="cx">           },
</span><span class="cx"> 
</span><span class="cx">          /**
</span><span class="lines">@@ -58,31 +60,34 @@
</span><span class="cx">          },
</span><span class="cx"> 
</span><span class="cx">          /**
</span><del>-                * Obtain a rendered widget element. Assumes standard practice of using
-                * the widget ID as the ID for the DOM element. To eliminate this
-                * assumption, additional data-* attributes would need to be injected
-                * onto the rendered widget root element.
</del><ins>+                 * Highlight the widget on widget updates or widget control mouse overs.
</ins><span class="cx">            *
</span><del>-                * @param {String} widget_id
-                * @return {jQuery}
</del><ins>+                 * @param  {string} widgetId ID of the widget.
</ins><span class="cx">            */
</span><del>-               getWidgetElement: function ( widget_id ) {
-                       return $( '#' + widget_id );
</del><ins>+                highlightWidget: function( widgetId ) {
+                       var $body = $( document.body ),
+                               $widget = $( '#' + widgetId );
+
+                       $body.find( '.widget-customizer-highlighted-widget' ).removeClass( 'widget-customizer-highlighted-widget' );
+
+                       $widget.addClass( 'widget-customizer-highlighted-widget' );
+                       setTimeout( function () {
+                               $widget.removeClass( 'widget-customizer-highlighted-widget' );
+                       }, 500 );
</ins><span class="cx">           },
</span><span class="cx"> 
</span><span class="cx">          /**
</span><del>-                *
</del><ins>+                 * Show a title and highlight widgets on hover. On shift+clicking
+                * focus the widget control.
</ins><span class="cx">            */
</span><span class="cx">          highlightControls: function() {
</span><del>-                       var selector = this.widgetSelectors.join(',');
</del><ins>+                        var self = this,
+                               selector = this.widgetSelectors.join(',');
</ins><span class="cx"> 
</span><span class="cx">                  $(selector).attr( 'title', this.l10n.widgetTooltip );
</span><span class="cx"> 
</span><span class="cx">                  $(document).on( 'mouseenter', selector, function () {
</span><del>-                               var control = parent.WidgetCustomizer.getWidgetFormControlForWidget( $(this).prop('id') );
-                               if ( control ) {
-                                       control.highlightSectionAndControl();
-                               }
</del><ins>+                                self.preview.send( 'highlight-widget-control', $( this ).prop( 'id' ) );
</ins><span class="cx">                   });
</span><span class="cx"> 
</span><span class="cx">                  // Open expand the widget control when shift+clicking the widget element
</span><span class="lines">@@ -91,10 +96,8 @@
</span><span class="cx">                                  return;
</span><span class="cx">                          }
</span><span class="cx">                          e.preventDefault();
</span><del>-                               var control = parent.WidgetCustomizer.getWidgetFormControlForWidget( $(this).prop('id') );
-                               if ( control ) {
-                                       control.focus();
-                               }
</del><ins>+
+                               self.preview.send( 'focus-widget-control', $( this ).prop( 'id' ) );
</ins><span class="cx">                   });
</span><span class="cx">          }
</span><span class="cx">  };
</span></span></pre>
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