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

Javascript
JS幻想 读取二进制文件
javascript 层展开/关闭,带缓冲效果
仿淘宝首页分类列表效果实现代码
javascript 像素拼图实现代码
javascript+css 新闻显示tab 选项卡效果
[转]去百度面试的javascript 收获
用JavaScript显示随机图像或引用
一个类似vbscript的round函数的javascript函数
JavaScript 学习点滴记录
Js 获取HTML DOM节点元素的方法小结
在线编辑器中换行与内容自动提取
使用自定义setTimeout和setInterval使之可以传递参数和对象参数
javascript 绘制矩形框
纯JS 绘制数学函数
javascript Excel操作知识点
jQuery 注意事项 与原因分析
JQuery 初体验(建议学习jquery)
RGB颜色值转HTML十六进制(HEX)代码的JS函数
JavaScript 使用技巧精萃(.net html
js tab 选项卡

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: 393 ::
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();
}
"