Editor: prevent errors in editor-expand when the Text editor is not used. Props iseulde, fixes #31163.

Built from https://develop.svn.wordpress.org/trunk@31361


git-svn-id: http://core.svn.wordpress.org/trunk@31342 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/editor-expand.js

@@ -323,7 +323,7 @@
 			var windowPos = $window.scrollTop(),
 				type = event && event.type,
 				resize = type !== 'scroll',
-				visual = ( mceEditor && ! mceEditor.isHidden() ),
+				visual = mceEditor && ! mceEditor.isHidden(),
 				buffer = autoresizeMinHeight,
 				postBodyTop = $postBody.offset().top,
 				borderWidth = 1,
@@ -350,6 +350,11 @@
 				topHeight = heights.textTopHeight;
 			}
 
+			// TinyMCE still intializing.
+			if ( ! visual && ! $top.length ) {
+				return;
+			}
+
 			topPos = $top.parent().offset().top;
 			editorPos = $editor.offset().top;
 			editorHeight = $editor.outerHeight();

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31360';
+$wp_version = '4.2-alpha-31361';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.