webfxtree.jsc

管理公司合同

# language: JSVM2

/**
 * @fileoverview com.eae.webfx.xtree.WebFXTree class {@link http://jsvm.homolo.com/}
 * @file		WebFXTree.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;

/**
 * Create a new WebFXTree instance.
 * Inherit from WebFXTreeAbstractNode
 * @author	Emil A Eklund (Modified by Wan Changhua)
 * @version	1.1, 07/01/05
 * @extends WebFXTreeAbstractNode
 * @class This is the webfx tree class.  
 * @constructor
 * @param {String} sText
 * @param {String} sAction
 * @param {String} sBehavior
 * @param {String} sIcon
 * @param {String} sOpenIcon
 * @return A new WebFXTree object
 */

class WebFXTree extends WebFXTreeAbstractNode (sText, sAction, sBehavior, sIcon, sOpenIcon)
{
	//this.base = WebFXTreeAbstractNode;
	//this.base(sText, sAction);
	super.call(this, sText, sAction);

	this.icon      = sIcon || WebFXTreeConfig.rootIcon;
	this.openIcon  = sOpenIcon || WebFXTreeConfig.openRootIcon;
	/* Defaults to open */
	if (WebFXTreeConfig.usePersistence) {
		this.open  = (WebFXTreeHandler.cookies.getValue(this.id.substr(18,this.id.length - 18)) == '0')?false:true;
	} else { this.open  = true; }
	this.folder    = true;
	this.rendered  = false;
	this.onSelect  = null;
	if (!WebFXTreeHandler.behavior) 
	{
		WebFXTreeHandler.behavior = sBehavior || WebFXTreeConfig.defaultBehavior;
	}

	this.onCheck = null;

}

//WebFXTree.prototype = new WebFXTreeAbstractNode;


/**
 * Sets the behavior property of WebFXTreeHandler
 * @param {String} sBehavior
 */
WebFXTree.prototype.setBehavior = function (sBehavior)
{
	WebFXTreeHandler.behavior =  sBehavior;
};

/**
 * Returns the behavior property of WebFXTreeHandler
 * @type String
 */
WebFXTree.prototype.getBehavior = function ()
{
	return WebFXTreeHandler.behavior;
};

/**
 * Returns the selected child node
 * @type WebFXTreeAbstractNode
 */
WebFXTree.prototype.getSelected = function()
{
	if (WebFXTreeHandler.selected) { return WebFXTreeHandler.selected; }
	else { return null; }
}

/**
 * Removes self from current page. (not implemented)
 */
WebFXTree.prototype.remove = function() { }

/**
 * Override the expand method.
 */
WebFXTree.prototype.expand = function() {
	this.doExpand();
}

/**
 * Override the collapse method.
 */
WebFXTree.prototype.collapse = function(b) {
	if (!b) { this.focus(); }
	this.doCollapse();
}

/**
 * The first child of this node. If there is no such node, this returns 
 * <code>null</code>.
 */
WebFXTree.prototype.getFirst = function() {
	return null;
}

/**
 * The last child of this node. If there is no such node, this returns 
 * <code>null</code>.
 */
WebFXTree.prototype.getLast = function() {
	return null;
}

/**
 * The node immediately following this node. If there is no such node, 
 * this returns <code>null</code>.
 */
WebFXTree.prototype.getNextSibling = function() {
	return null;
}

/**
 * The node immediately preceding this node. If there is no such node, 
 * this returns <code>null</code>.
 */
WebFXTree.prototype.getPreviousSibling = function() {
	return null;
}

/**
 * Disposes the keydown event.
 * @private
 */
WebFXTree.prototype.keydown = function(key) {
	if (key == 39) {
		if (!this.open) { this.expand(); }
		else if (this.childNodes.length) { this.childNodes[0].select(); }
		return false;
	}
	if (key == 37) { this.collapse(); return false; }
	if ((key == 40) && (this.open) && (this.childNodes.length)) { this.childNodes[0].select(); return false; }
	return true;
}

/**
 * Returns a string representation of the object.
 * @returns  a html string of the object.
 * @type String
 */
WebFXTree.prototype.toString = function() {
	var str = "<div id=\"" + this.id + "\" ondblclick=\"com.eae.webfx.xtree.WebFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return com.eae.webfx.xtree.WebFXTreeHandler.keydown(this, event)\">" +
		"<img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((WebFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"com.eae.webfx.xtree.WebFXTreeHandler.select(this);\">" +
		"<a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" onfocus=\"com.eae.webfx.xtree.WebFXTreeHandler.focus(this);\" onblur=\"com.eae.webfx.xtree.WebFXTreeHandler.blur(this);\"" +
		(this.target ? " target=\"" + this.target + "\"" : "") +
		">" + this.text + "</a></div>" +
		"<div id=\"" + this.id + "-cont\" class=\"webfx-tree-container\" style=\"display: " + ((this.open)?'block':'none') + ";\">";
	var sb = [];
	for (var i = 0; i < this.childNodes.length; i++) {
		sb[i] = this.childNodes[i].toString(i, this.childNodes.length);
	}
	this.rendered = true;
	return str + sb.join("") + "</div>";
};


/**
 * Builds an element of self in the given container
 * If an container is not provided, the current postion parent node is the container.
 * Add by Wan Changhua (2005-07-01)
 * @param {Element} container
 */
WebFXTree.prototype.build = function(container)
{
	if (container == null) {
		document.write(this.toString());
	}	else {
		container.innerHTML = this.toString();
	}
}