Ticket #7260: 7260.patch

_source/core/dom/node.js

@@ -210 +210 @@
                                 {
                                         // Get the node index. For performance, call getIndex
                                         // directly, instead of creating a new node object.
-                                        address.unshift( this.getIndex.call( { $ : node }, normalized ) );
+                                        address.push( this.getIndex.call( { $ : node }, normalized ) );
                                 }
 
                                 node = parentNode;
                         }
 
-                        return address;
+                        // Reverse the array instead of doing 'unshift' as for it's poor performance. (#7260)
+                        return address.reverse();
                 },
 
                 /**
@@ -393 +394 @@
                         return ( parent && parent.nodeType == 1 ) ? new CKEDITOR.dom.node( parent ) : null;
                 },
 
+                /**
+                 *  Retrieve all ancestors from this element up till the document element.
+                 * @param {Boolean} [closerFirst=false] Whether closer ancestors stay in front of the result list.
+                 */
                 getParents : function( closerFirst )
                 {
                         var node = this;
@@ -400 +405 @@
 
                         do
                         {
-                                parents[  closerFirst ? 'push' : 'unshift' ]( node );
+                                parents.push( node );
                         }
-                        while ( ( node = node.getParent() ) )
+                        while ( ( node = node.getParent() ) );
 
-                        return parents;
+                        // Reverse the array instead of doing 'unshift' as for it's poor performance. (#7260)
+                        return closerFirst ? parents : parents.reverse();
                 },
 
                 getCommonAncestor : function( node )