当前位置: 首页 > 图文教程 > 网络编程 > Javascript > xtree.js 代码

Javascript
一个可以兼容IE FF的加为首页与加入收藏实现代码
javascript(jquery)利用函数修改全局变量的代码
JQuery 解析多维的Json数据格式
javascript 按回车键相应按钮提交事件
深入认识javascript中的eval函数
jquery tree 可编辑节点实现代码(jquery一句话节点菜单)
js window.onload 加载多个函数的方法
MAC官方菜单纯CSS实现灰色会换色
CSS Filter背景透明提示
CSS鼠标悬停菜单 图片交换技术实现
纯JS图片批量预加载技术代码
实用的层滑开js实现代码
jQuery get和post 方法传值注意事项
JQuery打造PHP的AJAX表单提交实例
Jquery AJAX 框架的使用方法
基于JQuery框架的AJAX实例代码
jquery ajax 检测用户注册时用户名是否存在
javascript 限制输入脚本大全
JavaScript window.setTimeout() 的详细用法
JavaScript 表格高亮类的应用[高级]

Javascript 中的 xtree.js 代码


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-10-12   浏览: 150 ::
收藏到网摘: n/a

复制代码 代码如下:

//** Powered by Fason
//** Email: [email protected]
var icon={
root :'image/root.gif',
open :'image/open.png',
close :'image/close.png',
file :'image/file.png',
Rplus :'image/Rplus.gif',
Rminus :'image/Rminus.gif',
join :'image/T.gif',
joinbottom:'image/L.gif',
plus :'image/Tplus.gif',
plusbottom:'image/Lplus.gif',
minus :'image/Tminus.gif',
minusbottom:'image/Lminus.gif',
blank :'image/blank.gif',
line :'image/I.gif'
};
var Global={
id:0,
getId:function(){return this.id++;},
all:[],
selectedItem:null,
defaultText:"treeItem",
defaultAction:"javascript:void(0)",
defaultTarget:"_blank"
}
function preLoadImage(){
for(i in icon){
var tem=icon[i];
icon[i]=new Image()
icon[i].src=tem
}
};preLoadImage();
function treeItem(text,action,target,title,Icon)
{
this.id=Global.getId();
this.level=0;
this.text=text?text:Global.defaultText;
this.action=action?action:Global.defaultAction;
this.target=target?target:Global.defaultTarget;
this.title=title?title:this.text;
this.isLast=true;
this.childNodes=new Array();
this.indent=new Array();
this.parent=null;
var c =0;
if(getCookie("item"+this.id) != null) c = getCookie("item"+this.id);
this.open=parseInt(c);
this.load=false;
this.setuped=false;
this.JsItem=null;
this.container=document.createElement("div");
this.icon=Icon;
Global.all[Global.all.length]=this;
}
treeItem.prototype.toString = function()
{
var o = this;
var oItem = document.createElement("div");
oItem.id = "treeItem"+this.id
oItem.className = "treeItem";
oItem.noWrap = true;
oItem.onselectstart = function(){ return false;}
oItem.oncontextmenu = function(){ return false;}
this.JsItem = oItem;
this.drawIndents();
var iIcon = document.createElement("img");
iIcon.align = "absmiddle";
iIcon.src = this.childNodes.length>0?(this.open?(this.level>0?(this.isLast?icon.minusbottom.src:icon.minus.src):icon.Rminus.src):(this.level>0?(this.isLast?icon.plusbottom.src:icon.plus.src):icon.Rplus.src)):(this.level>0?(this.isLast?icon.joinbottom.src:icon.join.src):icon.blank.src);
iIcon.id = "treeItem-icon-handle-" + this.id;
iIcon.onclick = function(){ o.toggle();};
oItem.appendChild(iIcon);
var iIcon = document.createElement("img");
iIcon.align = "absmiddle";
iIcon.src = this.icon?this.icon:(this.childNodes.length>0?(this.open?icon.open.src:icon.close.src):icon.file.src);
iIcon.id = "treeItem-icon-folder-" + this.id;
iIcon.onclick = function(){ o.select();};
iIcon.ondblclick = function(){ o.toggle();};
oItem.appendChild(iIcon);
var eText = document.createElement("span");
var eA=document.createElement("a");
eA.innerHTML = this.text;
eA.target = this.target;
eA.href = this.action;
eA.onkeydown = function(e){ return o.KeyDown(e);}
if(this.action == Global.defaultAction) eA.onclick = function(){ o.toggle(); return false;}
eText.appendChild(eA);
eText.id = "treeItem-text-" + this.id;
eText.className = "treeItem-unselect"
eText.onclick = function(){ o.select(1);};
eText.title = this.title;
oItem.appendChild(eText);
this.container.id = "treeItem-container-"+this.id;
this.container.style.display = this.open?"":"none";
oItem.appendChild(this.container);
return oItem;
}
treeItem.prototype.root = function()
{
var p = this;
while(p.parent)
p = p.parent;
return p;
}
treeItem.prototype.setText = function(sText)
{
if(this.root().setuped)
{
var oItem = document.getElementById("treeItem-text-" + this.id);
oItem.firstChild.innerHTML = sText;
}
this.text = sText;
}
treeItem.prototype.setIndent = function(l,v)
{
for(var i=0;i<this.childNodes.length;i++)
{
this.childNodes[i].indent[l] = v;
this.childNodes[i].setIndent(l,v);
}
}
treeItem.prototype.drawIndents = function()
{
var oItem = this.JsItem;
for(var i=0;i<this.indent.length;i++){
var iIcon = document.createElement("img");
iIcon.align = "absmiddle";
iIcon.id = "treeItem-icon-" + this.id + "-" + i;
iIcon.src = this.indent[i]?icon.blank.src:icon.line.src;
oItem.appendChild(iIcon);
}
}
treeItem.prototype.add = function(oItem)
{
oItem.parent=this;
this.childNodes[this.childNodes.length]=oItem;
oItem.level=this.level+1;
oItem.indent=this.indent.concat();
oItem.indent[oItem.indent.length]=this.isLast;
if(this.childNodes.length>1){
var o=this.childNodes[this.childNodes.length-2];
o.isLast=false;
o.setIndent(o.level,0);
if(this.root().setuped)o.reload(1);
}
else if(this.root().setuped)
this.reload(0);
this.container.appendChild(oItem.toString());
this.container.style.display=this.open?"":"none";
}
treeItem.prototype.loadChildren = function()
{
//do something
}
treeItem.prototype.remove = function()
{
var tmp = this.getPreviousSibling();
//if(tmp){ tmp.select();}
this.removeChildren();
var p = this.parent;
if(!p){ return };
if(p.childNodes.length>0){
var o = p.childNodes[p.childNodes.length-1];
o.isLast = true;
o.setIndent(o.level,1);
if(o.root().setuped)o.reload(1);
}
else
p.reload();
}
treeItem.prototype.removeChildren = function ()
{
if(this == Global.selectedItem){ Global.selectedItem = null;}
for(var i=this.childNodes.length-1;i>=0;i--)
this.childNodes[i].removeChildren();
var o = this;
var p = this.parent;
if (p) { p.childNodes = p.childNodes._remove(o);}
Global.all[this.id] = null
var oItem = document.getElementById("treeItem"+this.id);
if (oItem) { oItem.parentNode.removeChild(oItem); }
}
treeItem.prototype.reload = function(flag)
{
if (flag){
for(var j=0;j<this.childNodes.length;j++){ this.childNodes[j].reload(1);}
for(var i=0;i<this.indent.length;i++)
document.getElementById("treeItem-icon-" +this.id+ "-"+i).src = this.indent[i]?icon.blank.src:icon.line.src;
}
document.getElementById("treeItem-icon-handle-" +this.id).src = this.childNodes.length>0?(this.open?(this.level>0?(this.isLast?icon.minusbottom.src:icon.minus.src):icon.Rminus.src):(this.level>0?(this.isLast?icon.plusbottom.src:icon.plus.src):icon.Rplus.src)):(this.level>0?(this.isLast?icon.joinbottom.src:icon.join.src):icon.blank.src);
if (!this.icon)
document.getElementById("treeItem-icon-folder-"+this.id).src = this.childNodes.length>0?(this.open?icon.open.src:icon.close.src):icon.file.src;
}
treeItem.prototype.toggle = function()
{
if(this.childNodes.length>0){
if(this.open)
this.collapse();
else
this.expand();
}
}
treeItem.prototype.expand = function()
{
this.open=1;
setCookie("item"+this.id,1);
if(!this.load){
this.load=true;
this.loadChildren();
this.reload(1);
}
else
this.reload(0);
this.container.style.display = "";
}
treeItem.prototype.collapse = function()
{
this.open=0;
setCookie("item"+this.id,0);
this.container.style.display = "none";
this.reload(0);
this.select(1);
}
treeItem.prototype.expandAll = function()
{
if(this.childNodes.length>0 && !this.open)this.expand();
this.expandChildren();
}
treeItem.prototype.collapseAll = function()
{
this.collapseChildren();
if(this.childNodes.length>0 && this.open)this.collapse();
}
treeItem.prototype.expandChildren = function()
{
for(var i=0;i<this.childNodes.length;i++)
this.childNodes[i].expandAll();
}
treeItem.prototype.collapseChildren = function()
{
for(var i=0;i<this.childNodes.length;i++)
this.childNodes[i].collapseAll()
}
treeItem.prototype.openURL=function()
{
if(this.action!=Global.defaultAction){
window.open(this.action,this.target);
}
}
treeItem.prototype.select=function(o)
{
if (Global.selectedItem) Global.selectedItem.unselect();
var oItem = document.getElementById("treeItem-text-" + this.id);
oItem.className = "treeItem-selected";
oItem.firstChild.focus();
Global.selectedItem = this;
if(!o) this.openURL();
}
treeItem.prototype.unselect=function()
{
var oItem = document.getElementById("treeItem-text-" + this.id);
oItem.className = "treeItem-unselect";
oItem.firstChild.blur();
Global.selectedItem = null;
}
treeItem.prototype.setup = function(oTaget)
{
oTaget.appendChild(this.toString());
this.setuped = true;
if(this.childNodes.length>0 || this.open) this.expand();
}
/**********************************************/
/*
Arrow Key Event
*/
/**********************************************/
treeItem.prototype.getFirstChild = function()
{
if(this.childNodes.length>0 && this.open)
return this.childNodes[0];
return this;
}
treeItem.prototype.getLastChild = function()
{
if(this.childNodes.length>0 && this.open)
return this.childNodes[this.childNodes.length-1].getLastChild();
return this;
}
treeItem.prototype.getPreviousSibling = function()
{
if(!this.parent) return null;
for(var i=0;i<this.parent.childNodes.length;i++)
if(this.parent.childNodes[i] == this)break;
if(i == 0)
return this.parent;
else
return this.parent.childNodes[i-1].getLastChild();
}
treeItem.prototype.getNextSibling = function()
{
if(!this.parent) return null;
for(var i=0;i<this.parent.childNodes.length;i++)
if(this.parent.childNodes[i] == this)break;
if(i == this.parent.childNodes.length-1)
return this.parent.getNextSibling();
else
return this.parent.childNodes[i+1];
}
treeItem.prototype.KeyDown=function(e){
var code,o;
if(!e) e = window.event;
code = e.which ? e.which : e.keyCode;
o = this;
if(code == 37)
{
if(o.open) o.collapse();
else
{
if(o.parent) o.parent.select();
}
return false;
}
else if(code == 38)
{
var tmp = o.getPreviousSibling();
if(tmp) tmp.select();
return false;
}
else if(code == 39)
{
if(o.childNodes.length>0)
{
if(!o.open) o.expand();
else
{
var tmp = o.getFirstChild();
if(tmp) tmp.select();
}
}
return false;
}
else if(code == 40)
{
if(o.open&&o.childNodes.length>0)o.getFirstChild().select();
else
{
var tmp = o.getNextSibling();
if(tmp) tmp.select();
}
return false;
}
else if(code == 13)
{
o.toggle();
o.openURL();
return false;
}
return true;
}
/*****************************************************/
Array.prototype.indexOf=function(o){
for(var i=0;i<this.length;i++)
if(this[i]==o)return i;
return -1;
}
Array.prototype.removeAt=function(i){
return this.slice(0,i).concat(this.slice(i+1))
}
Array.prototype._remove=function(o){
var i=this.indexOf(o);
if(i!= -1) return this.removeAt(i)
return this
}
/*****************************************************/
/*****************************************************/
/*
xtreeItem Class
*/
/*****************************************************/
function xtreeItem(uid,text,action,target,title,Icon,xml){
this.uid=uid;
this.base=treeItem;
this.base(text,action,target,title,Icon);
this.Xml=xml;
}
xtreeItem.prototype=new treeItem;
xtreeItem.prototype.parseElement=function(dom){
return dom.selectSingleNode("/TreeNode");
}
xtreeItem.prototype.addNodesLoop = function(oItem)
{
for(var i=0;i<oItem.childNodes.length;i++)
{
var o = oItem.childNodes[i];
var tmp = new xtreeItem(o.getAttribute("id"),o.getAttribute("text"),o.getAttribute("href"),o.getAttribute("target"),o.getAttribute("title"),o.getAttribute("icon"),o.getAttribute('Xml'));
this.add(tmp);
if(o.getAttribute("Xml")) tmp.add(new treeItem("Loading..."));
else
{
tmp.load=true;
tmp.addNodesLoop(o);
}
}
}
xtreeItem.prototype.loadChildren=function()
{
var oItem = this;
var oLoad = oItem.childNodes[0];
var XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
XmlHttp.onreadystatechange=function(){
if(XmlHttp.readyState==4){
if(XmlHttp.status==200){
if(XmlHttp.responseXML.xml == ""){ oLoad.setText("unavaible1");return;}
var XmlItem=oItem.parseElement(XmlHttp.responseXML.documentElement);
if(XmlItem.childNodes.length == 0){ oLoad.setText("unavaible") }
else
{
oItem.addNodesLoop(XmlItem);
for(var i=0;i<oItem.childNodes.length;i++)
{
if(parseInt(getCookie("item"+oItem.childNodes[i].id)) ==1)
{ oItem.childNodes[i].expand();}
}
if(Global.selectedItem == oItem.childNodes[0])oItem.select();
oLoad.remove();
}
}
else{
oLoad.setText("unavaible");
}
XmlHttp = null;
oItem.select(1);
}
}
try{
XmlHttp.open("get",this.Xml+(/\?/g.test(this.Xml)?"&":"?")+"temp="+Math.random(),true);
XmlHttp.send();
}catch(e){ oLoad.setText("unavaible");}
}
xtreeItem.prototype.setup=function(oTarget){
this.add(new treeItem("Loading..."));
oTarget.appendChild(this.toString());
this.setuped=true;
if(this.childNodes.length>0 || this.open) this.expand();
}
/*****************************************************/
function setCookie(name,value)
{
var Days = 7;
var exp = new Date();
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
function getCookie(name)
{
var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
if(arr != null) return unescape(arr[2]); return null;
}
function delCookie(name)
{
var exp = new Date();
exp.setTime(exp.getTime() - 1);
var cval=getCookie(name);
if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}
"