webfxloadtreeitem.jsc

《JavaScript王者归来》examples.rar

# language: JSVM2

/**
 * @fileoverview com.eae.webfx.xtree.WebFXLoadTreeItem class {@link http://jsvm.homolo.com/}
 * @file		WebFXLoadTreeItem.jsc
 * @author	Emil A Eklund
 * @Modifier: Changhua Wan
 * @version	1.1, 07/01/05
 */

package com.eae.webfx.xtree;

import com.eae.webfx.xtree.WebFXTreeConfig;
import com.eae.webfx.xtree.WebFXTreeHandler;
import com.eae.webfx.xtree.WebFXTreeAbstractNode;
import com.eae.webfx.xtree.WebFXTreeItem;
import com.eae.webfx.xtree.WebFXUtil;
import com.eae.webfx.xtree.WebFXLoadTree;

/**
 * Create a new WebFXLoadTreeItem instance.
 * Inherit from WebFXTreeItem
 * @author	Emil A Eklund (Modified by Wan Changhua)
 * @version	1.1, 07/01/05
 * @extends WebFXTreeItem
 * @class This is the webfx tree item class.  
 * @constructor
 * @param {String} sText
 * @param {String} sXmlSrc
 * @param {String} sAction
 * @param {String} eParent
 * @param {String} sIcon
 * @param {String} sOpenIcon
 * @param {String} sRadio
 * @param {String} sCheckBox
 * @param {String} sValue
 * @param {String} sChecked
 * @return A new WebFXLoadTreeItem object
 */

class WebFXLoadTreeItem extends WebFXTreeItem (sText, sXmlSrc, sAction, eParent, sIcon, sOpenIcon,sRadio,sCheckBox,sValue,sChecked)
{
	//call super
	//this.WebFXTreeItem = WebFXTreeItem;
	//this.WebFXTreeItem(sText, sAction, eParent, sIcon, sOpenIcon);
	super.call(this, sText, sAction, eParent, sIcon, sOpenIcon);

	this.radio = sRadio;
	this.checkbox = sCheckBox;
	this.value = sValue;
	this.checked = sChecked;

	// setup default property values
	this.src = sXmlSrc;
	this.loading = false;
	this.loaded = false;
	this.errorText = "";

	// check start state and load if open
	if (this.open)
	{
		WebFXUtil.startLoadXmlTree(this.src, this);
	}
	else
	{
		// and create loading item if not
		this._loadingItem = new WebFXTreeItem(WebFXTreeConfig.loadingText);
		this.add(this._loadingItem);
	}
}

//WebFXLoadTreeItem.prototype = new WebFXTreeItem;

// override the expand method to load the xml file
//WebFXLoadTreeItem.prototype._WebFXTreeItem_expand = WebFXTreeItem.prototype.expand;
WebFXLoadTreeItem.prototype.expand = function()
{
	if (!this.loaded && !this.loading)
	{
		// load
		WebFXUtil.startLoadXmlTree(this.src, this);
	}
	//this._WebFXTreeItem_expand();
	super.prototype.expand.call(this);
};

// reloads the src file if already loaded
WebFXLoadTree.prototype.reload =
WebFXLoadTreeItem.prototype.reload = function ()
{
	// if loading do nothing
	if (this.loaded)
	{
		var open = this.open;
		// remove
		try
		{
			while (this.childNodes.length > 0)
			{
				this.childNodes[this.childNodes.length - 1].remove();
			}
		}	catch(ex){}
		this.loaded = false;

		this._loadingItem = new WebFXTreeItem(WebFXTreeConfig.loadingText);
		this.add(this._loadingItem);

		if (open)
		{
			this.expand();
		}
	}
	else if (this.open && !this.loading)
	{
		WebFXUtil.startLoadXmlTree(this.src, this);
		alert("..");
	}
};