sectree.js

套功能强大的网络办公系统

function startMenu() {

// 菜单参数

	imageDirectory = '../../../img'; ////图片目录
	menuTree = new obj_collection()

	defineMenuItems(menuTree)

	if (definitionsHaveErrors(menuTree) == false) {createAppearanceArray(menuTree,menuTree.itemWithID('root'));
					       treeVariable = menuTree;
					       expandNode('root');
					       expandNode('ioffice')
						expandNode('sysset')
					}

}

// OBJ_NODE - 定义结点对象

// ID = 每个结点的绝对标记
// NAME = 菜单上显示的结点名称
// PARENTID = 父结点的标记
// TYPE = 可以是文档，文件夹或者根结点
// URL = 结点对应的连接
// ALTIMAGE = 16x16 GIF文件(不用于文件夹folders)
// POSITION = 结点的位置
// TARGET = 需要在Frame打开时，为空表示在当前页面打开。
//   _top 表示整页面打开。

function obj_node(id,name,parentID,type,url,altImage,position,target) {
	      this.id = id.toLowerCase();
	    this.name = name;
        this.parentID = parentID.toLowerCase();
	    this.type = type.toLowerCase();
	     this.url = url;
	this.altImage = altImage;
	this.position = position;
	  this.target = target;
}

// OBJ_COLLECTION function - defines a new collection

function obj_collection() {
	this.addItem = addItem;
	this.itemWithID = itemWithID;
	this.itemIDExists = itemIDExists;
	this.extractExpandableNodes = extractExpandableNodes;
	this.posOfItemWithID = posOfItemWithID;
	this.length = 0;
	return this
}

// OBJ_ARRAY function - defines a fixed size array

function obj_array(size) {
	this.length = size;
	this.itemWithID = itemWithID;
	this.itemIDExists = itemIDExists;
	this.posOfItemWithID = posOfItemWithID;
	return this
}

// OBJ_NODEAPPEARANCE - defines the appearance of a menu node (using images)

function obj_appearanceNode(id,imageSequence,name,parentID,type,url,target,visable) {
	this.id = id;
	this.imageSequence = imageSequence;
	this.name = name;
	this.parentID = parentID;
	this.type = type;
	this.url = url;
	this.target = target;
	this.visable = visable;	
	return this
}

// createAppearanceArray() function - this function looks at the menu node definitions,
//				      works out how they all fit together, and determines the
//				      image sequence needed to show their position on the menu
//				      tree.  This is then stored in the appearanceArray.

function createAppearanceArray(treeVariable,startNode) {
	appearanceArray = new obj_array(treeVariable.length);
	appearancePos = 1;
	if (startNode.type == 'page') {alert("The createAppearanceArray() function can only be called on a root or folder node.")}
	else {createAppearanceBranch(treeVariable,startNode)}
}

function createAppearanceBranch(treeVariable,startNode) {
	if (startNode.type == 'root') {if (startNode.altImage == '') {var iconImage = 'img-globe.gif'}
				       else {var iconImage = startNode.altImage}
				       var newAppNode = new obj_appearanceNode(startNode.id,iconImage,startNode.name,'',startNode.type,startNode.url,startNode.target,true)
				       appearanceArray[appearancePos] = newAppNode;
				       appearancePos = appearancePos + 1}
	if (startNode.type == 'folder') {var newAppNode = new obj_appearanceNode(startNode.id,'',startNode.name,startNode.parentID,startNode.type,startNode.url,startNode.target,false);
              var appearanceStr = addStringToStart('','img-folder.gif');
	      var lengthOfBranch = extractChildren(treeVariable,treeVariable.itemWithID(startNode.parentID)).length;
	      if (startNode.position == lengthOfBranch) {appearanceStr = addStringToStart(appearanceStr,'img-plus-end.gif|')}
	      else {appearanceStr = addStringToStart(appearanceStr,'img-plus-cont.gif|')}
	      appearanceStr = addStringToStart(appearanceStr,createParentalStructure(treeVariable,startNode.id));
	      newAppNode.imageSequence = appearanceStr;
	      appearanceArray[appearancePos] = newAppNode;
	      appearancePos = appearancePos + 1}
	     

	if (startNode.type == 'page') {var newAppNode = new obj_appearanceNode(startNode.id,'',startNode.name,startNode.parentID,startNode.type,startNode.url,startNode.target,false);
				       if (startNode.altImage == '') {var appearanceStr = 'img-page.gif'}
				       else {var appearanceStr = startNode.altImage}
				       var lengthOfBranch = extractChildren(treeVariable,treeVariable.itemWithID(startNode.parentID)).length;
				       if (startNode.position == lengthOfBranch) {appearanceStr = addStringToStart(appearanceStr,'img-branch-end.gif|')}
				       else {appearanceStr = addStringToStart(appearanceStr,'img-branch-cont.gif|')}
				       appearanceStr = addStringToStart(appearanceStr,createParentalStructure(treeVariable,startNode.id));
					newAppNode.imageSequence = appearanceStr;
	     				 appearanceArray[appearancePos] = newAppNode;
	     				 appearancePos = appearancePos + 1
				       }
	else {
		var nodeChildren = extractAndSortChildren(treeVariable,startNode);
		var lengthOfBranch = nodeChildren.length;
		var currentIndex = 1;
		while (currentIndex <= lengthOfBranch) {createAppearanceBranch(treeVariable,nodeChildren[currentIndex])
							currentIndex = currentIndex + 1}
	     }
}

function collapseNode(nodeID) {

	var startingPos = appearanceArray.posOfItemWithID(nodeID) + 1;
	childCount = 0;
	countChildrenOf(treeVariable,nodeID);
	var endPos = (startingPos + childCount) - 1;
	
	if (endPos < startingPos) {endPos = startingPos + ((extractChildren(treeVariable,treeVariable.itemWithID(nodeID)).length) - 1) }

	currentIndex = startingPos
	while (currentIndex <= endPos) {
		if (appearanceArray[currentIndex].type == 'folder') {if ((appearanceArray[currentIndex].imageSequence).indexOf("img-folder-open.gif") != -1) {collapseAppearance(appearanceArray[currentIndex]); appearanceArray[currentIndex].visable = false}
								     else {appearanceArray[currentIndex].visable = false}
								    }
		else {appearanceArray[currentIndex].visable = false}
		currentIndex = currentIndex + 1
	}

	collapseAppearance(appearanceArray.itemWithID(nodeID))
	timeOutId = setTimeout("drawMenu(appearanceArray)",100);
}

function collapseAppearance(arrayNode) {
	var imageSequence = arrayNode.imageSequence;
	var newImage = "img-plus-cont.gif";
	var oldCont = "img-minus-cont.gif";
	var oldEnd = "img-minus-end.gif";
	var oldLength = oldCont.length;
	var plusPosition = imageSequence.indexOf(oldCont)
	if (plusPosition == -1) {plusPosition = imageSequence.indexOf(oldEnd); newImage = "img-plus-end.gif"; oldLength = oldEnd.length}

	var newAppearance = imageSequence.substring(0,plusPosition) + newImage + "|img-folder.gif"
	arrayNode.imageSequence = newAppearance;
}

// expandNode() function - expands and displays the given node

function expandNode(nodeID) {
	var lengthOfArray = appearanceArray.length;
	var currentIndex = 1;
	while (currentIndex <= lengthOfArray) {
		if ((appearanceArray[currentIndex].id == nodeID) || (appearanceArray[currentIndex].parentID == nodeID)) {appearanceArray[currentIndex].visable = true;
								     
								     if (appearanceArray[currentIndex].id == nodeID) {var parentIndex = currentIndex}
								     }
		currentIndex = currentIndex + 1;
	}
	if (appearanceArray[parentIndex].type != 'root') {
		expandAppearance(appearanceArray[parentIndex])}
	timeOutId = setTimeout("drawMenu(appearanceArray)",100);
}

function expandAppearance(arrayNode) {
	var imageSequence = arrayNode.imageSequence;
	var newImage = "img-minus-cont.gif";
	var oldCont = "img-plus-cont.gif";
	var oldEnd = "img-plus-end.gif";
	var oldLength = oldCont.length;
	var plusPosition = imageSequence.indexOf(oldCont)
	if (plusPosition == -1) {plusPosition = imageSequence.indexOf(oldEnd); newImage = "img-minus-end.gif"; oldLength = oldEnd.length}

	var newAppearance = imageSequence.substring(0,plusPosition) + newImage + "|img-folder-open.gif";
	arrayNode.imageSequence = newAppearance;
}

// drawMenu() 函数 - 生成explorer外观的菜单，使用document.write书写相关的页面，自己修改。

function drawMenu(appearanceArray) {
	var lengthOfArray = appearanceArray.length;
	var currentIndex = 1;
	var uname;
	top.MenuFrame.document.open("text/html");
	top.MenuFrame.document.write("<HTML><head><link rel='stylesheet' href='../../../css/tree.css'></head><BODY>")
	while (currentIndex <= lengthOfArray) {
		if (appearanceArray[currentIndex].visable == true){drawNode(appearanceArray[currentIndex])}
		currentIndex = currentIndex + 1;
	}
	top.MenuFrame.document.close();
	window.status = '欢迎你使用 Hongfan iOffice.Net 2001!';
}
function getcookieval(offset)
{
	var endstr=document.cookie.indexOf(";",offset)
	if (endstr==-1)
		endstr=document.cookie.length
	return unescape(document.cookie.substring(offset,endstr))
}
function getcookie(name)
{
	var arg=name+"="
	var alen=arg.length
	var clen=document.cookie.length
	var i=0
	while (i<clen)
	{
		var j=i+alen
		if (document.cookie.substring(i,j)==arg)
			return getcookieval(j)
		i=document.cookie.indexOf(" ",i)+1
		if (i==0) 
			break
	}
	return null
}


function drawNode(node) {
	var imageSequence = node.imageSequence;
	writeImageSequence(node,imageSequence);
	top.MenuFrame.document.write("&nbsp;")
	if (node.type == 'root') 
	{
		nodeName = node.name
	}else {
		nodeName = node.name
	}
	
	if (node.target == '') 
	{
		var nodeTarget = 'PageFrame'
	}else {
		nodeTarget = node.target
	}
	
	if (node.type!='folder')
	{
		top.MenuFrame.document.writeln("<A HREF='" + node.url + "' TARGET='" + nodeTarget + "'>" + nodeName + "</A><BR>")
	}else{
		
		nodeIdent = "'" + node.id + "'"
		switch (imgstyle)
		{
			case 'close':
				top.MenuFrame.document.writeln("<A HREF=javascript:top.expandNode(" + nodeIdent + ")>" + nodeName +"</A><BR>")
				break
			default:
				top.MenuFrame.document.writeln("<A HREF=javascript:top.collapseNode(" + nodeIdent + ")>" + nodeName +"</A><BR>")
		}
	}
	
}

function writeImageSequence(node,sequence) {
	var finished = false;
	var lengthOfString = sequence.length;
	var imageSeq = sequence;
	
	if (node.target == '') 
	{
		var nodeTarget = 'PageFrame'
	}else {