htmlelement.jsc

《JavaScript王者归来》examples.rar

# language: JSVM2

/**
 * Copyright (c) 2000 World Wide Web Consortium,
 * (Massachusetts Institute of Technology, Institut National de
 * Recherche en Informatique et en Automatique, Keio University). All
 * Rights Reserved. This program is distributed under the W3C's Software
 * Intellectual Property License. This program is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.
 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
 */

package org.w3c.dom.html;

import js.lang.BObject;
import js.util.HashMap;

import org.w3c.dom.DOMException;
import org.w3c.dom.Element;
import org.w3c.dom.events.EventTarget;


class HTMLElement extends Element (tagName)
{

	super.call(this, tagName);
	EventTarget.call(this);
	this.globalize();

	this.__entity = null;
	this.__builded = false;

}


/**
 *  The element's identifier. See the  id attribute definition in HTML 4.0.
 */
HTMLElement.prototype.getId = function ()
{
	return "_he_" + this.getUniqueId();
}


/**
 *  The element's advisory title. See the  title attribute definition in
 * HTML 4.0.
 */
HTMLElement.prototype.getTitle = function ()
{
	return this.getEntity().title;
}

HTMLElement.prototype.setTitle = function (sTitle)
{
	this.getEntity().title = sTitle;
}

/**
 * The class attribute of the element. This attribute has been renamed
 * due to conflicts with the "class" keyword exposed by many languages.
 * See the  class attribute definition in HTML 4.0.
 */
HTMLElement.prototype.getClassName = function ()
{
	return this.getEntity().className;
}

HTMLElement.prototype.setClassName = function (sClassName)
{
	this.getEntity().className = sClassName;
}


/**
 * Override the insertBefore method of superclass
 */
HTMLElement.prototype.insertBefore = function (newChild, refChild)
{
	super.prototype.insertBefore.call(this, newChild, refChild);
	newChild.parent = this;
	return newChild;
}


/**
 * Override the replaceChild method of superclass
 */
HTMLElement.prototype.replaceChild = function (newChild, oldChild)
{
	super.prototype.replaceChild.call(this, newChild, oldChild);
	oldChild.parent = null;
	newChild.parent = this;
	return oldChild;
}


/**
 * Override the removeChild method of superclass
 */
HTMLElement.prototype.removeChild = function (oldChild)
{
	super.prototype.removeChild.call(this, oldChild);
	oldChild.__parentNode = null;
	return oldChild;
}

/**
 * Override the appendChild method of superclass
 */
HTMLElement.prototype.appendChild = function (newChild)
{
	super.prototype.appendChild.call(this, newChild);
	newChild.parent = this;
	return newChild;
}

/**
 *
 */
HTMLElement.prototype.getEntity = function ()
{
	return (this.__entity != null) ?
		this.__entity : this.createEntity();
}

/**
 *
 */
HTMLElement.prototype.build = function (elmt)
{
	if (this.__builded != true)
	{
		if (typeof(elmt) == "string")
		{
			elmt = document.getElementById(elmt);
		}
		elmt.appendChild(this.getEntity());
		this.__builded = true;
	}
}


/**
 *
 */
var __htmlTag = "SPAN";

/**
 * @private method
 */
HTMLElement.prototype.createEntity = function ()
{
	try
	{
		if (this.__entity == null)
		{
			this.__entity = document.createElement(__htmlTag);
			this.__entity.setAttribute("id", this.getId());
			this.__entity.setAttribute("ownerHTMLElement", this);
		}
		return this.__entity;
	}
	catch (ex)
	{
		throw new DOMException(this.getClass().getName()
			+ ".createEntity() error.", ex);
	}
}


/**
 * proxy methods
 */

HTMLElement.prototype.show = function ()
{
	this.getEntity().style.display = "";
}

HTMLElement.prototype.hidden = function ()
{
	this.getEntity().style.display = "none";
}

HTMLElement.prototype.focus = function ()
{
	this.getEntity().focus();
}

HTMLElement.prototype.blur = function ()
{
	this.getEntity().blur();
}