flymis/WebRoot/dojojs/src/widget/TreeContextMenu.js

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/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/



dojo.provide("dojo.widget.TreeContextMenu");

dojo.require("dojo.event.*");
dojo.require("dojo.io.*");
dojo.require("dojo.widget.Menu2");


dojo.widget.defineWidget("dojo.widget.TreeContextMenu", dojo.widget.PopupMenu2, function() {
	this.listenedTrees = [];
},
{
	open: function(x, y, parentMenu, explodeSrc){

		var result = dojo.widget.PopupMenu2.prototype.open.apply(this, arguments);

		/* publish many events here about structural changes */
		dojo.event.topic.publish(this.eventNames.open, { menu:this });

		return result;
	},

	listenTree: function(tree) {
		/* add context menu to all nodes that exist already */
		var nodes = tree.getDescendants();

		for(var i=0; i<nodes.length; i++) {
			if (!nodes[i].isTreeNode) continue;
			this.bindDomNode(nodes[i].labelNode);
		}


		/* bind context menu to all nodes that will be created in the future (e.g loaded from server)*/
		var _this = this;
		dojo.event.topic.subscribe(tree.eventNames.createDOMNode, this, "onCreateDOMNode");
		dojo.event.topic.subscribe(tree.eventNames.moveFrom, this, "onMoveFrom");
		dojo.event.topic.subscribe(tree.eventNames.moveTo, this, "onMoveTo");
		dojo.event.topic.subscribe(tree.eventNames.removeNode, this, "onRemoveNode");
		dojo.event.topic.subscribe(tree.eventNames.addChild, this, "onAddChild");
		dojo.event.topic.subscribe(tree.eventNames.treeDestroy, this, "onTreeDestroy");

		this.listenedTrees.push(tree);

	},

	unlistenTree: function(tree) {
		/* clear event listeners */

		dojo.event.topic.unsubscribe(tree.eventNames.createDOMNode, this, "onCreateDOMNode");