X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=_source%2Fcore%2Fdom%2Fnode.js;h=661154550ab0a83efd8b080952a664e8e98fb7c2;hb=614511639979907ceb0da3614122a4d8eb963ad4;hp=2ae3a134c112f8183a49457dbf9c1b9f65d4baee;hpb=059b4c2fef02528bf1af189f7996e80652faddfb;p=ckeditor.git

diff --git a/_source/core/dom/node.js b/_source/core/dom/node.js
index 2ae3a13..6611545 100644
--- a/_source/core/dom/node.js
+++ b/_source/core/dom/node.js
@@ -657,6 +657,45 @@ CKEDITOR.tools.extend( CKEDITOR.dom.node.prototype,
 					child.parentNode.removeChild( child ) ;
 				}
 			}
+		},
+
+		/**
+		 * Checks is this node is read-only (should not be changed). It
+		 * additionaly returns the element, if any, which defines the read-only
+		 * state of this node. It may be the node itself or any of its parent
+		 * nodes.
+		 * @returns {CKEDITOR.dom.element|Boolean} An element containing
+		 *		read-only attributes or "false" if none is found.
+		 * @since 3.5
+		 * @example
+		 * // For the following HTML:
+		 * // <div contenteditable="false">Some <b>text</b></div>
+		 *
+		 * // If "ele" is the above <div>
+		 * ele.getReadOnlyRoot();  // the <div> element
+		 *
+		 * // If "ele" is the above <b>
+		 * ele.getReadOnlyRoot();  // the <div> element
+		 */
+		isReadOnly : function()
+		{
+			var current = this;
+			while( current )
+			{
+				if ( current.type == CKEDITOR.NODE_ELEMENT )
+				{
+					if ( current.is( 'body' ) || current.getCustomData( '_cke_notReadOnly' ) )
+						break;
+
+					if ( current.getAttribute( 'contentEditable' ) == 'false' )
+						return current;
+					else if ( current.getAttribute( 'contentEditable' ) == 'true' )
+						break;
+				}
+				current = current.getParent();
+			}
+
+			return false;
 		}
 	}
 );