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"target='"+ target +"' "+
//提示
"title='"+ node.hint +"' "+
"onfocus=\""+ this.name +".focusLink('"+ id +"')\" "+
//右键点击节点出现 上下文关联菜单
"oncontextmenu=\" return "+ this.name +".showcontextmenu(event)\" "+
"onclick=\"return "+ this.name +".nodeClick('"+ id +"')\">"+ node.text +
"</A></NOBR></DIV>";
if(isRoot && node.text=="") HTML = "";
HTML = "\r\n<SPAN id='"+ this.name +"_tree_"+ id +"'>" + HTML;
HTML += "<SPAN style='DISPLAY: none;'></SPAN></SPAN>";
return HTML;
};
//在使用图片的时候对 node.childAppend 的转换
MzTreeView.prototype.word2image = function(word)
{
var str = "";
for(var i=0; i<word.length; i++)
{
var img = "";
switch (word.charAt(i))
{
case "│" : img = "L4"; break;
case "└" : img = "L2"; break;
case " " : img = "empty"; break;
case "├" : img = "L1"; break;
case "─" : img = "L3"; break;
case "┌" : img = "L0"; break;
}
if(img!="")
str += "<IMG align='absMiddle' src='"+ this.icons[img].src +"' height='20'>";
}
return str;
}
//获取当前节点在客户端的完整HTML标记
MzTreeView.prototype.getNodeHTML = function(id)
{
return "\r\n<SPAN id='"+ this.name +"_tree_"+ id +"'>" + this.getElementById(this.name +"_tree_"+ id).innerHTML + "</SPAN>";
};
//将某个节点下的所有子节点转化成详细的<HTML>元素，并显示
//id 树的客户端节点 id
MzTreeView.prototype.buildChildNodesHTML = function(id)
{
if(this.node[id].hasChild)
{
var childNodes = this.node[id].childNodes, str = "";
for (var i=0; i<childNodes.length; i++)
str += this.nodeToHTML(childNodes[i], i==childNodes.length-1);
this.getChildNodeSpan(this.node[id]).innerHTML = str;
}
};
//聚集到客户端生成的某个节点上
//id 客户端树节点的id
MzTreeView.prototype.focusClientNode = function(id)
{
if(!this.currentNode) this.currentNode=this.node["0"];
var currentLink = this.getElementById(this.name +"_link_"+ id);
if(currentLink){
var previousLink = this.getElementById(this.name +"_link_"+ this.currentNode.id);
if(previousLink) with(previousLink.style){color=""; backgroundColor="";}
currentLink.focus();
with(currentLink.style){color = this.colors.highLightText; backgroundColor = this.colors.highLight;}
this.currentNode= this.node[id];
}
};
//焦点聚集到树里的节点链接时的处理
//id 客户端节点 id
MzTreeView.prototype.focusLink = function(id)
{
if(this.currentNode && this.currentNode.id==id) return;
this.focusClientNode(id);
};
//节点链接单击事件处理方法
//id 客户端树节点的 id
MzTreeView.prototype.nodeClick = function(id)
{
var source = this.nodes[this.node[id].sourceIndex];
eval(this.getAttribute(source, "method"));
return !(!this.getAttribute(source, "url") && this.url=="#");
};
//为配合系统初始聚集某节点而写的函数, 得到某节点在数据源里的路径
//sourceId 数据源里的节点 id
MzTreeView.prototype.getPath= function(sourceId)
{
Array.prototype.indexOf = function(item)
{
for(var i=0; i<this.length; i++)
{
if(this[i]==item) return i;
}
return -1;
};
var _d = this._d, d = this.divider;
var A = new Array(), id=sourceId; A[0] = id;
while(id!="0" && id!="")
{
var str = "(^|"+_d+")([^"+_d+d+"]+"+d+ id +")("+_d+"|$)";
if (new RegExp(str).test(this.names))
{
id = RegExp.$2.substring(0, RegExp.$2.indexOf(d));
if(A.indexOf(id)>-1) break;
A[A.length] = id;
}
else break;
}
return A.reverse();
};
//在源代码里指定 MzTreeView 初始聚集到某个节点
//sourceId 节点在数据源里的 id
MzTreeView.prototype.focus = function(sourceId, defer)
{
if (!defer)
{
setTimeout(this.name +".focus('"+ sourceId +"', true)", 100);
return;
}
var path = this.getPath(sourceId);
if(path[0]!="0")
{
alert("节点 "+ sourceId +" 没有正确的挂靠有效树节点上！\r\n"+
"节点 id 序列 = "+ path.join(this.divider));
return;
}
var root = this.node["0"], len = path.length;
for(var i=1; i<len; i++)
{
if(root.hasChild)
{
var sourceIndex= path[i-1] + this.divider + path[i];
for (var k=0; k<root.childNodes.length; k++)
{
if (root.childNodes[k].sourceIndex == sourceIndex)
{
root = root.childNodes[k];
if(i<len - 1) this.toggle(root.id);
else this.focusClientNode(root.id);
break;
}
}
}
}
};
//树的单击事件处理函数
MzTreeView.prototype.clickHandle = function(e)
{
e = window.event || e; e = e.srcElement || e.target;
switch(e.tagName)
{
case "IMG" :
if(e.id)
{
if(e.id.indexOf(this.name +"_icon_")==0)
this.focusClientNode(e.id.substr(e.id.lastIndexOf("_") + 1));
else if (e.id.indexOf(this.name +"_expand_")==0)
this.toggle(e.id.substr(e.id.lastIndexOf("_") + 1));
}
break;
case "A" :
if(e.id) this.focusClientNode(e.id.substr(e.id.lastIndexOf("_") + 1));
break;
case "SPAN" :
if(e.className=="pm")
this.toggle(e.id.substr(e.id.lastIndexOf("_") + 1));
break;
default :
if(this.navigator=="netscape") e = e.parentNode;
if(e.tagName=="SPAN" && e.className=="pm")
this.toggle(e.id.substr(e.id.lastIndexOf("_") + 1));
break;
}
};
//MzTreeView 双击事件的处理函数
MzTreeView.prototype.dblClickHandle = function(e)
{
e = window.event || e; e = e.srcElement || e.target;
if((e.tagName=="A" || e.tagName=="IMG")&& e.id)
{
var id = e.id.substr(e.id.lastIndexOf("_") + 1);
if(this.node[id].hasChild) this.toggle(id);
}
};
//展开树节点的对应方法
//id 客户端节点 id
MzTreeView.prototype.expand = function(id)
{
var node = this.node[id];
if (!node.hasChild) return;
var childNodesSpan = this.getChildNodeSpan(node);
if (childNodesSpan)
{
var icon = this.icons[node.icon];
var iconE = this.iconsExpand[node.icon];
var img = this.getElementById(this.name +"_icon_"+ id);
if (img) img.src = typeof(iconE)=="undefined" ? icon.src : iconE.src;
var exp = this.icons[node.iconExpand];
var expE = this.iconsExpand[node.iconExpand];
var expand= this.getElementById(this.name +"_expand_"+ id);
if (expand)
{
expand.src = typeof(expE) =="undefined" ? exp.src : expE.src;
}
childNodesSpan.style.display = "block";
if(!node.isLoad)
{
this.load(id);
if(node.id=="0") return; //如果是虚拟的根节点，则退出不需要加载
//当子节点过多时, 给用户一个正在加载的提示语句
if(node.hasChild && node.childNodes.length>200)
{
setTimeout(this.name +".buildChildNodesHTML('"+ id +"')", 1);
childNodesSpan.innerHTML = "<DIV noWrap><NOBR><SPAN>"+ this.word2image(node.childAppend +"└") +"</SPAN>"+
"<IMG border='0' height='16' align='absmiddle' src='"+this.icons["file"].src+"'>"+
"<A style='background-Color: "+ this.colors.highLight +"; color: "+
this.colors.highLightText +"; font-size: 9pt'>请稍候...</A></NOBR></DIV>";
}
else this.buildChildNodesHTML(id);
}
}
};
//折叠树节点的对应方法
//id 客户端节点 id
MzTreeView.prototype.collapse = function(id)
{
var node = this.node[id];
if (!node.hasChild) return;
var childNodesSpan = this.getChildNodeSpan(node);
if (childNodesSpan)
{
var icon = this.icons[node.icon];
var iconE = this.iconsExpand[node.icon];
var img = this.getElementById(this.name +"_icon_"+ id);
if (img) img.src = icon.src;
var exp = this.icons[node.iconExpand];
var expE = this.iconsExpand[node.iconExpand];
var expand= this.getElementById(this.name +"_expand_"+ id);
if (expand)
{
expand.src = exp.src;
}
if(this.currentNode.path.indexOf(node.path)==0 && this.currentNode.id!=id)
{
try{this.getElementById(this.name +"_link_"+ id).click();}
catch(e){this.focusClientNode(id);}
}
childNodesSpan.style.display = "none";
}
};
//点击展开树节点的对应方法
//id 客户端节点 id
//sureExpand
MzTreeView.prototype.toggle = function(id,sureExpand)
{
var node = this.node[id];
if (!node.hasChild) return;
var childNodesSpan = this.getChildNodeSpan(node);
if (childNodesSpan)
{
var isCollapse = sureExpand || childNodesSpan.style.display == "none";
if(isCollapse)
this.expand(id);
else
this.collapse(id);
}
};
//展开树的所有节点
MzTreeView.prototype.expandAll = function()
{
if(this.totalNode>500) if(
confirm("您是否要停止展开全部节点？\r\n\r\n节点过多！展开很耗时")) return;
if(this.node["0"].childNodes.length==0) return;
var e = this.node["0"].childNodes[0];
var isdo = t = false;
while(e.id != "0")
{
var p = this.node[e.parentId].childNodes, pn = p.length;
if(p[pn-1].id==e.id && (isdo || !e.hasChild)){e=this.node[e.parentId]; isdo = true;}
else
{
if(e.hasChild && !isdo)
{
this.toggle(e.id,true), t = false;
for(var i=0; i<e.childNodes.length; i++)
{
if(e.childNodes[i].hasChild){e = e.childNodes[i]; t = true; break;}
}
if(!t) isdo = true;
}
else
{
isdo = false;
for(var i=0; i<pn; i++)
{
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