init

public/tinymce/classes/dom/TreeWalker.js

@@ -0,0 +1,79 @@
+/**
+ * TreeWalker.js
+ *
+ * Copyright, Moxiecode Systems AB
+ * Released under LGPL License.
+ *
+ * License: http://www.tinymce.com/license
+ * Contributing: http://www.tinymce.com/contributing
+ */
+
+/**
+ * TreeWalker class enables you to walk the DOM in a linear manner.
+ *
+ * @class tinymce.dom.TreeWalker
+ */
+define("tinymce/dom/TreeWalker", [], function() {
+	return function(start_node, root_node) {
+		var node = start_node;
+
+		function findSibling(node, start_name, sibling_name, shallow) {
+			var sibling, parent;
+
+			if (node) {
+				// Walk into nodes if it has a start
+				if (!shallow && node[start_name]) {
+					return node[start_name];
+				}
+
+				// Return the sibling if it has one
+				if (node != root_node) {
+					sibling = node[sibling_name];
+					if (sibling) {
+						return sibling;
+					}
+
+					// Walk up the parents to look for siblings
+					for (parent = node.parentNode; parent && parent != root_node; parent = parent.parentNode) {
+						sibling = parent[sibling_name];
+						if (sibling) {
+							return sibling;
+						}
+					}
+				}
+			}
+		}
+
+		/**
+		 * Returns the current node.
+		 *
+		 * @method current
+		 * @return {Node} Current node where the walker is.
+		 */
+		this.current = function() {
+			return node;
+		};
+
+		/**
+		 * Walks to the next node in tree.
+		 *
+		 * @method next
+		 * @return {Node} Current node where the walker is after moving to the next node.
+		 */
+		this.next = function(shallow) {
+			node = findSibling(node, 'firstChild', 'nextSibling', shallow);
+			return node;
+		};
+
+		/**
+		 * Walks to the previous node in tree.
+		 *
+		 * @method prev
+		 * @return {Node} Current node where the walker is after moving to the previous node.
+		 */
+		this.prev = function(shallow) {
+			node = findSibling(node, 'lastChild', 'previousSibling', shallow);
+			return node;
+		};
+	};
+});