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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/37437">37437</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/37437","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>westonruter</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2016-05-16 07:21:22 +0000 (Mon, 16 May 2016)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Customize: Include shortcut button in Custom Menu widget to edit the selected menu in the Customizer.

Clicking on the Edit Menu button focuses on the corresponding nav menu section. Upon collapsing the nav menu section, the focus is returned to the Custom Menu widget instead of taking the user to the menus root panel. In this way, the back button behavior is modified once to serve as breadcrumb/history navigation. The Edit Menu button with the breadcrumb back button behavior greatly reduce the number of UI interactions needed to edit a menu referenced in a Custom Menu widget.

Props celloexpressions, westonruter.
Fixes <a href="https://core.trac.wordpress.org/ticket/32683">#32683</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadminjscustomizewidgetsjs">trunk/src/wp-admin/js/customize-widgets.js</a></li>
<li><a href="#trunksrcwpincludeswidgetsclasswpnavmenuwidgetphp">trunk/src/wp-includes/widgets/class-wp-nav-menu-widget.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadminjscustomizewidgetsjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/js/customize-widgets.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/js/customize-widgets.js        2016-05-16 06:11:58 UTC (rev 37436)
+++ trunk/src/wp-admin/js/customize-widgets.js  2016-05-16 07:21:22 UTC (rev 37437)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2140,6 +2140,58 @@
</span><span class="cx" style="display: block; padding: 0 10px">        };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * Initialize Edit Menu button in Nav Menu widget.
+        */
+       $( document ).on( 'widget-added', function( event, widgetContainer ) {
+               var parsedWidgetId, widgetControl, navMenuSelect, editMenuButton;
+               parsedWidgetId = parseWidgetId( widgetContainer.find( '> .widget-inside > .form > .widget-id' ).val() );
+               if ( 'nav_menu' !== parsedWidgetId.id_base ) {
+                       return;
+               }
+               widgetControl = api.control( 'widget_nav_menu[' + String( parsedWidgetId.number ) + ']' );
+               if ( ! widgetControl ) {
+                       return;
+               }
+               navMenuSelect = widgetContainer.find( 'select[name*="nav_menu"]' );
+               editMenuButton = widgetContainer.find( '.edit-selected-nav-menu > button' );
+               if ( 0 === navMenuSelect.length || 0 === editMenuButton.length ) {
+                       return;
+               }
+               navMenuSelect.on( 'change', function() {
+                       if ( api.section.has( 'nav_menu[' + navMenuSelect.val() + ']' ) ) {
+                               editMenuButton.parent().show();
+                       } else {
+                               editMenuButton.parent().hide();
+                       }
+               });
+               editMenuButton.on( 'click', function() {
+                       var section = api.section( 'nav_menu[' + navMenuSelect.val() + ']' );
+                       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 );
+       }
+
+       /**
</ins><span class="cx" style="display: block; padding: 0 10px">          * @param {String} widgetId
</span><span class="cx" style="display: block; padding: 0 10px">         * @returns {Object}
</span><span class="cx" style="display: block; padding: 0 10px">         */
</span></span></pre></div>
<a id="trunksrcwpincludeswidgetsclasswpnavmenuwidgetphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/widgets/class-wp-nav-menu-widget.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/widgets/class-wp-nav-menu-widget.php        2016-05-16 06:11:58 UTC (rev 37436)
+++ trunk/src/wp-includes/widgets/class-wp-nav-menu-widget.php  2016-05-16 07:21:22 UTC (rev 37437)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -14,7 +14,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">  *
</span><span class="cx" style="display: block; padding: 0 10px">  * @see WP_Widget
</span><span class="cx" style="display: block; padding: 0 10px">  */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- class WP_Nav_Menu_Widget extends WP_Widget {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+class WP_Nav_Menu_Widget extends WP_Widget {
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><span class="cx" style="display: block; padding: 0 10px">         * Sets up a new Custom Menu widget instance.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -110,8 +110,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">         * @access public
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="cx" style="display: block; padding: 0 10px">         * @param array $instance Current settings.
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * @global WP_Customize_Manager $wp_customize
</ins><span class="cx" style="display: block; padding: 0 10px">          */
</span><span class="cx" style="display: block; padding: 0 10px">        public function form( $instance ) {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                global $wp_customize;
</ins><span class="cx" style="display: block; padding: 0 10px">                 $title = isset( $instance['title'] ) ? $instance['title'] : '';
</span><span class="cx" style="display: block; padding: 0 10px">                $nav_menu = isset( $instance['nav_menu'] ) ? $instance['nav_menu'] : '';
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -122,7 +124,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                ?>
</span><span class="cx" style="display: block; padding: 0 10px">                <p class="nav-menu-widget-no-menus-message" <?php if ( ! empty( $menus ) ) { echo ' style="display:none" '; } ?>>
</span><span class="cx" style="display: block; padding: 0 10px">                        <?php
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        if ( isset( $GLOBALS['wp_customize'] ) && $GLOBALS['wp_customize'] instanceof WP_Customize_Manager ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 if ( $wp_customize instanceof WP_Customize_Manager ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                                 $url = 'javascript: wp.customize.panel( "nav_menus" ).focus();';
</span><span class="cx" style="display: block; padding: 0 10px">                        } else {
</span><span class="cx" style="display: block; padding: 0 10px">                                $url = admin_url( 'nav-menus.php' );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -146,6 +148,11 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                        <?php endforeach; ?>
</span><span class="cx" style="display: block; padding: 0 10px">                                </select>
</span><span class="cx" style="display: block; padding: 0 10px">                        </p>
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        <?php if ( $wp_customize instanceof WP_Customize_Manager ) : ?>
+                               <p class="edit-selected-nav-menu" style="<?php if ( ! $nav_menu ) { echo 'display: none;'; } ?>">
+                                       <button type="button" class="button"><?php _e( 'Edit Menu' ) ?></button>
+                               </p>
+                       <?php endif; ?>
</ins><span class="cx" style="display: block; padding: 0 10px">                 </div>
</span><span class="cx" style="display: block; padding: 0 10px">                <?php
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span></span></pre>
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