Struts example source code file (TreeWithNode.js)

This example Struts source code file (TreeWithNode.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

loaded, loaded, loading, loading, treenode, treenode, unchecked, unchecked, you

The Struts TreeWithNode.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.require("dojo.lang.declare");
dojo.provide("dojo.widget.TreeWithNode");
dojo.declare("dojo.widget.TreeWithNode", null, function () {
}, {loadStates:{UNCHECKED:"UNCHECKED", LOADING:"LOADING", LOADED:"LOADED"}, state:"UNCHECKED", objectId:"", isContainer:true, lockLevel:0, lock:function () {
	this.lockLevel++;
}, unlock:function () {
	if (!this.lockLevel) {
		dojo.raise(this.widgetType + " unlock: not locked");
	}
	this.lockLevel--;
}, expandLevel:0, loadLevel:0, hasLock:function () {
	return this.lockLevel > 0;
}, isLocked:function () {
	var node = this;
	while (true) {
		if (node.lockLevel) {
			return true;
		}
		if (!node.parent || node.isTree) {
			break;
		}
		node = node.parent;
	}
	return false;
}, flushLock:function () {
	this.lockLevel = 0;
}, actionIsDisabled:function (action) {
	var disabled = false;
	if (dojo.lang.inArray(this.actionsDisabled, action)) {
		disabled = true;
	}
	if (this.isTreeNode) {
		if (!this.tree.allowAddChildToLeaf && action == this.actions.ADDCHILD && !this.isFolder) {
			disabled = true;
		}
	}
	return disabled;
}, actionIsDisabledNow:function (action) {
	return this.actionIsDisabled(action) || this.isLocked();
}, setChildren:function (childrenArray) {
	if (this.isTreeNode && !this.isFolder) {
		this.setFolder();
	} else {
		if (this.isTreeNode) {
			this.state = this.loadStates.LOADED;
		}
	}
	var hadChildren = this.children.length > 0;
	if (hadChildren && childrenArray) {
		this.destroyChildren();
	}
	if (childrenArray) {
		this.children = childrenArray;
	}
	var hasChildren = this.children.length > 0;
	if (this.isTreeNode && hasChildren != hadChildren) {
		this.viewSetHasChildren();
	}
	for (var i = 0; i < this.children.length; i++) {
		var child = this.children[i];
		if (!(child instanceof dojo.widget.Widget)) {
			child = this.children[i] = this.tree.createNode(child);
			var childWidgetCreated = true;
		} else {
			var childWidgetCreated = false;
		}
		if (!child.parent) {
			child.parent = this;
			if (this.tree !== child.tree) {
				child.updateTree(this.tree);
			}
			child.viewAddLayout();
			this.containerNode.appendChild(child.domNode);
			var message = {child:child, index:i, parent:this, childWidgetCreated:childWidgetCreated};
			delete dojo.widget.manager.topWidgets[child.widgetId];
			dojo.event.topic.publish(this.tree.eventNames.afterAddChild, message);
		}
		if (this.tree.eagerWidgetInstantiation) {
			dojo.lang.forEach(this.children, function (child) {
				child.setChildren();
			});
		}
	}
}, doAddChild:function (child, index) {
	return this.addChild(child, index, true);
}, addChild:function (child, index, dontPublishEvent) {
	if (dojo.lang.isUndefined(index)) {
		index = this.children.length;
	}
	if (!child.isTreeNode) {
		dojo.raise("You can only add TreeNode widgets to a " + this.widgetType + " widget!");
		return;
	}
	this.children.splice(index, 0, child);
	child.parent = this;
	child.addedTo(this, index, dontPublishEvent);
	delete dojo.widget.manager.topWidgets[child.widgetId];
}, onShow:function () {
	this.animationInProgress = false;
}, onHide:function () {
	this.animationInProgress = false;
}});