Struts example source code file (TreeContextMenu.js)

This example Struts source code file (TreeContextMenu.js) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Struts tags/keywords

The Struts TreeContextMenu.js source code

/*
	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);
	dojo.event.topic.publish(this.eventNames.open, {menu:this});
	return result;
}, listenTree:function (tree) {
	var nodes = tree.getDescendants();
	for (var i = 0; i < nodes.length; i++) {
		if (!nodes[i].isTreeNode) {
			continue;
		}
		this.bindDomNode(nodes[i].labelNode);
	}
	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) {
	dojo.event.topic.unsubscribe(tree.eventNames.createDOMNode, this, "onCreateDOMNode");
	dojo.event.topic.unsubscribe(tree.eventNames.moveFrom, this, "onMoveFrom");
	dojo.event.topic.unsubscribe(tree.eventNames.moveTo, this, "onMoveTo");
	dojo.event.topic.unsubscribe(tree.eventNames.removeNode, this, "onRemoveNode");
	dojo.event.topic.unsubscribe(tree.eventNames.addChild, this, "onAddChild");
	dojo.event.topic.unsubscribe(tree.eventNames.treeDestroy, this, "onTreeDestroy");
	for (var i = 0; i < this.listenedTrees.length; i++) {
		if (this.listenedTrees[i] === tree) {
			this.listenedTrees.splice(i, 1);
			break;
		}
	}
}, onTreeDestroy:function (message) {
	this.unlistenTree(message.source);
}, bindTreeNode:function (node) {
	var _this = this;
	dojo.lang.forEach(node.getDescendants(), function (e) {
		_this.bindDomNode(e.labelNode);
	});
}, unBindTreeNode:function (node) {
	var _this = this;
	dojo.lang.forEach(node.getDescendants(), function (e) {
		_this.unBindDomNode(e.labelNode);
	});
}, onCreateDOMNode:function (message) {
	this.bindTreeNode(message.source);
}, onMoveFrom:function (message) {
	if (!dojo.lang.inArray(this.listenedTrees, message.newTree)) {
		this.unBindTreeNode(message.child);
	}
}, onMoveTo:function (message) {
	if (dojo.lang.inArray(this.listenedTrees, message.newTree)) {
		this.bindTreeNode(message.child);
	}
}, onRemoveNode:function (message) {
	this.unBindTreeNode(message.child);
}, onAddChild:function (message) {
	if (message.domNodeInitialized) {
		this.bindTreeNode(message.child);
	}
}});
dojo.widget.defineWidget("dojo.widget.TreeMenuItem", dojo.widget.MenuItem2, {treeActions:"", initialize:function (args, frag) {
	this.treeActions = this.treeActions.split(",");
	for (var i = 0; i < this.treeActions.length; i++) {
		this.treeActions[i] = this.treeActions[i].toUpperCase();
	}
}, getTreeNode:function () {
	var menu = this;
	while (!(menu instanceof dojo.widget.TreeContextMenu)) {
		menu = menu.parent;
	}
	var source = menu.getTopOpenEvent().target;
	while (!source.getAttribute("treeNode") && source.tagName != "body") {
		source = source.parentNode;
	}
	if (source.tagName == "body") {
		dojo.raise("treeNode not detected");
	}
	var treeNode = dojo.widget.manager.getWidgetById(source.getAttribute("treeNode"));
	return treeNode;
}, menuOpen:function (message) {
	var treeNode = this.getTreeNode();
	this.setDisabled(false);
	var _this = this;
	dojo.lang.forEach(_this.treeActions, function (action) {
		_this.setDisabled(treeNode.actionIsDisabled(action));
	});
}, toString:function () {
	return "[" + this.widgetType + " node " + this.getTreeNode() + "]";
}});