Media: Hide sidebar in Create Gallery when no actions available.

Check whether the media frame menu has action items. If not, hide the sidebar. Prevents showing a sidebar that looks interactive but contains no controls that are interactive. When in Create Gallery mode, the only action available is 'Create Gallery', and it is always active.

Props ukdrahul, ababir, ruchirj, nhrrob, joedolson, shailu25, mukesh27, sudipatel007, dhrumilk.
Fixes #60666.
Built from https://develop.svn.wordpress.org/trunk@59139


git-svn-id: http://core.svn.wordpress.org/trunk@58535 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/js/media-views.js

@@ -2282,17 +2282,15 @@ var State = Backbone.Model.extend(/** @lends wp.media.controller.State.prototype
 	_menu: function() {
 		var menu = this.frame.menu,
 			mode = this.get('menu'),
-			actionMenuItems,
-			actionMenuLength,
-			view;
+			view,
+			actionMenuItems = this.frame.menu.get('views'),
+			actionMenuLength = actionMenuItems ? actionMenuItems.views.get().length : 0;
 
 		if ( this.frame.menu ) {
-			actionMenuItems = this.frame.menu.get('views'),
-			actionMenuLength = actionMenuItems ? actionMenuItems.views.get().length : 0,
 			// Show action menu only if it is active and has more than one default element.
 			this.frame.$el.toggleClass( 'hide-menu', ! mode || actionMenuLength < 2 );
 		}
-		if ( ! mode ) {
+		if ( ! mode || actionMenuLength < 2 ) {
 			return;
 		}
 

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.7-alpha-59138';
+$wp_version = '6.7-alpha-59139';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.