xtree.js

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WebFXTree.prototype = new WebFXTreeAbstractNode;

WebFXTree.prototype.setBehavior = function (sBehavior) {
	webFXTreeHandler.behavior =  sBehavior;
};

WebFXTree.prototype.getBehavior = function (sBehavior) {
	return webFXTreeHandler.behavior;
};

WebFXTree.prototype.getSelected = function() {
	if (webFXTreeHandler.selected) { return webFXTreeHandler.selected; }
	else { return null; }
}

WebFXTree.prototype.remove = function() { }

WebFXTree.prototype.expand = function() {
	this.doExpand();
}

WebFXTree.prototype.collapse = function(b) {
	if (!b) { this.focus(); }
	this.doCollapse();
}

WebFXTree.prototype.getFirst = function() {
	return null;
}

WebFXTree.prototype.getLast = function() {
	return null;
}

WebFXTree.prototype.getNextSibling = function() {
	return null;
}

WebFXTree.prototype.getPreviousSibling = function() {
	return null;
}
//键盘的方向键的支持
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;
}

WebFXTree.prototype.toString = function() {
	var str = "<div id=\"" + this.id + "\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this, event)\">" +
		(this.hasicon ? "<img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\">":"") +
		"<a " + 
		(this.action ? "href=\"" + this.action + "\"":"") + 
		" id=\"" + this.id + "-anchor\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\"" + 
		(this.target ? " target=\"" + this.target + "\"" : "") +
		(this.title ? " title=\""+ this.title + "\"" : " ") +
		(this.aonmouseover ? " onmouseover=\""+ this.aonmouseover +"\"":" ") +
		(this.aonmouseout ? " onmouseout =\""+this.aonmouseout+"\"": " " ) + 
		" >" +
		(this.fontClass ? "<font class=\"" + this.fontClass +"\"" + ">" + this.text + "</font>" :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>";
};

/*
 * WebFXTreeItem class
 */

function WebFXTreeItem(sText, sAction, sMid,eParent, sIcon, sOpenIcon) {
	this.base = WebFXTreeAbstractNode;
	this.base(sText, sAction, sMid);//加入该对象在数据库中的id ---add by joshua at 2005-4-27

	this.title	=	false;	//连接标记中的title属性2005-4-8---------1
	this.fontClass	=	false;	//字体标记中的class属性2005-4-8-----------2
	this.aonmouseover	=	false;	//连接标记中的onmouseover事件2005-4-8--------3
	this.aonmouseout	=	false;	//连接标记中的onmouseut事件2005-4-8--------3

	/* Defaults to close */
	if (webFXTreeConfig.usePersistence) {
		this.open = (webFXTreeHandler.cookies.getCookie(this.id.substr(18,this.id.length - 18)) == '1')?true:false;
	} else { this.open = false; }
	if (sIcon) { this.icon = sIcon; }
	if (sOpenIcon) { this.openIcon = sOpenIcon; }
	if (eParent) { eParent.add(this); }
}

WebFXTreeItem.prototype = new WebFXTreeAbstractNode;

WebFXTreeItem.prototype.remove = function() {
	var iconSrc = document.getElementById(this.id + '-plus').src;
	var parentNode = this.parentNode;
	var prevSibling = this.getPreviousSibling(true);
	var nextSibling = this.getNextSibling(true);
	var folder = this.parentNode.folder;
	var last = ((nextSibling) && (nextSibling.parentNode) && (nextSibling.parentNode.id == parentNode.id))?false:true;
	this.getPreviousSibling().focus();
	this._remove();
	if (parentNode.childNodes.length == 0) {
		document.getElementById(parentNode.id + '-cont').style.display = 'none';
		parentNode.doCollapse();
		parentNode.folder = false;
		parentNode.open = false;
	}
	if (!nextSibling || last) { parentNode.indent(null, true, last, this._level, parentNode.childNodes.length); }
	if ((prevSibling == parentNode) && !(parentNode.childNodes.length)) {
		prevSibling.folder = false;
		prevSibling.open = false;
		iconSrc = document.getElementById(prevSibling.id + '-plus').src;
		iconSrc = iconSrc.replace('minus', '').replace('plus', '');
		document.getElementById(prevSibling.id + '-plus').src = iconSrc;
		document.getElementById(prevSibling.id + '-icon').src = webFXTreeConfig.fileIcon;
	}
	if (document.getElementById(prevSibling.id + '-plus')) {
		if (parentNode == prevSibling.parentNode) {
			iconSrc = iconSrc.replace('minus', '').replace('plus', '');
			document.getElementById(prevSibling.id + '-plus').src = iconSrc;
}	}	}

WebFXTreeItem.prototype._remove = function() {
	for (var i = this.childNodes.length - 1; i >= 0; i--) {
		this.childNodes[i]._remove();
 	}
	for (var i = 0; i < this.parentNode.childNodes.length; i++) {
		if (this == this.parentNode.childNodes[i]) {
			for (var j = i; j < this.parentNode.childNodes.length; j++) {
				this.parentNode.childNodes[j] = this.parentNode.childNodes[j+1];
			}
			this.parentNode.childNodes.length -= 1;
			if (i + 1 == this.parentNode.childNodes.length) { this.parentNode._last = true; }
			break;
	}	}
	webFXTreeHandler.all[this.id] = null;
	var tmp = document.getElementById(this.id);
	if (tmp) { tmp.parentNode.removeChild(tmp); }
	tmp = document.getElementById(this.id + '-cont');
	if (tmp) { tmp.parentNode.removeChild(tmp); }
}

WebFXTreeItem.prototype.expand = function() {
	this.doExpand();
	document.getElementById(this.id + '-plus').src = this.minusIcon;
}

WebFXTreeItem.prototype.collapse = function(b) {
	if (!b) { this.focus(); }
	this.doCollapse();
	document.getElementById(this.id + '-plus').src = this.plusIcon;
}

WebFXTreeItem.prototype.getFirst = function() {
	return this.childNodes[0];
}

WebFXTreeItem.prototype.getLast = function() {
	if (this.childNodes[this.childNodes.length - 1].open) { return this.childNodes[this.childNodes.length - 1].getLast(); }
	else { return this.childNodes[this.childNodes.length - 1]; }
}

WebFXTreeItem.prototype.getNextSibling = function() {
	for (var i = 0; i < this.parentNode.childNodes.length; i++) {
		if (this == this.parentNode.childNodes[i]) { break; }
	}
	if (++i == this.parentNode.childNodes.length) { return this.parentNode.getNextSibling(); }
	else { return this.parentNode.childNodes[i]; }
}

WebFXTreeItem.prototype.getPreviousSibling = function(b) {
	for (var i = 0; i < this.parentNode.childNodes.length; i++) {
		if (this == this.parentNode.childNodes[i]) { break; }
	}
	if (i == 0) { return this.parentNode; }
	else {
		if ((this.parentNode.childNodes[--i].open) || (b && this.parentNode.childNodes[i].folder)) { return this.parentNode.childNodes[i].getLast(); }
		else { return this.parentNode.childNodes[i]; }
} }

WebFXTreeItem.prototype.keydown = function(key) {
	if ((key == 39) && (this.folder)) {
		if (!this.open) { this.expand(); }
		else { this.getFirst().select(); }
		return false;
	}
	else if (key == 37) {
		if (this.open) { this.collapse(); }
		else { this.parentNode.select(); }
		return false;
	}
	else if (key == 40) {
		if (this.open) { this.getFirst().select(); }
		else {
			var sib = this.getNextSibling();
			if (sib) { sib.select(); }
		}
		return false;
	}
	else if (key == 38) { this.getPreviousSibling().select(); return false; }
	return true;
}

WebFXTreeItem.prototype.toString = function (nItem, nItemCount) {
	var foo = this.parentNode;
	var indent = '';
	if (nItem + 1 == nItemCount) { this.parentNode._last = true; }
	var i = 0;
	while (foo.parentNode) {
		foo = foo.parentNode;
		indent = "<img id=\"" + this.id + "-indent-" + i + "\" src=\"" + ((foo._last)?webFXTreeConfig.blankIcon:webFXTreeConfig.iIcon) + "\">" + indent;
		i++;
	}
	this._level = i;
	if (this.childNodes.length) { this.folder = 1; }
	else { this.open = false; }

	//2005-4-8--------------4
	if(this.hasicon){
		if ((this.folder) || (webFXTreeHandler.behavior != 'classic')) {
			if (!this.icon) { this.icon = webFXTreeConfig.folderIcon; }
			if (!this.openIcon) { this.openIcon = webFXTreeConfig.openFolderIcon; }
		}
		else if (!this.icon) { this.icon = webFXTreeConfig.fileIcon; }
	}
	var label = this.text.replace(/</g, '&lt;').replace(/>/g, '&gt;');
	var str = "<div id=\"" + this.id + "\" onclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this, event)\">" +
		indent +
		"<img id=\"" + this.id + "-plus\" src=\"" + ((this.folder)?((this.open)?((this.parentNode._last)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.tMinusIcon):((this.parentNode._last)?webFXTreeConfig.lPlusIcon:webFXTreeConfig.tPlusIcon)):((this.parentNode._last)?webFXTreeConfig.lIcon:webFXTreeConfig.tIcon)) + "\" >" +
		(this.hasicon?"<img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\">":"") +
		"<a " + 
		(this.action ? "href=\"" + this.action + "\"":" ") + 
		" id=\"" + this.id + "-anchor\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\"" +
		(this.target ? " target=\"" + this.target + "\"" : " ") + 
		(this.title ? "title=\"" + this.title + "\"":"") +		
		(this.aonmouseover ? " onmouseover=\""+ this.aonmouseover +"\"":" ") +
		(this.aonmouseout ? " onmouseout =\""+this.aonmouseout+"\"": " " ) + 
		">" + 
		
		(this.fontClass ? "<font class=\"" + this.fontClass +"\"" + ">" + label + "</font>" : label ) +
		
		"</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.plusIcon = ((this.parentNode._last)?webFXTreeConfig.lPlusIcon:webFXTreeConfig.tPlusIcon);
	this.minusIcon = ((this.parentNode._last)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.tMinusIcon);
	return str + sb.join("") + "</div>";
}