js 属性结构

首先在项目里面建一个.js文件

function Folder(folderDescription, hreference) //constructor
{
  //constant data
  this.desc = folderDescription
  this.hreference = hreference
  this.id = -1  
  this.navObj = 0 
  this.iconImg = 0 
  this.nodeImg = 0 
  this.isLastNode = 0
 
  //dynamic data
  this.isOpen = true
  this.iconSrc = "/img/ftv2folderopen.gif"  
  this.children = new Array
  this.nChildren = 0
 
  //methods
  this.initialize = initializeFolder
  this.setState = setStateFolder
  this.addChild = addChild
  this.createIndex = createEntryIndex
  this.hide = hideFolder
  this.display = display
  this.renderOb = drawFolder
  this.totalHeight = totalHeight
  this.subEntries = folderSubEntries
  this.outputLink = outputFolderLink
}
 
function setStateFolder(isOpen)
{
  var subEntries
  var totalHeight
  var fIt = 0
  var i=0
 
  if (isOpen == this.isOpen)
    return
 
  if (browserVersion == 2) 
  {
    totalHeight = 0
    for (i=0; i < this.nChildren; i++)
      totalHeight = totalHeight + this.children[i].navObj.clip.height
      subEntries = this.subEntries()
    if (this.isOpen)
      totalHeight = 0 - totalHeight
    for (fIt = this.id + subEntries + 1; fIt < nEntries; fIt++)
      indexOfEntries[fIt].navObj.moveBy(0, totalHeight)
  } 
  this.isOpen = isOpen
  propagateChangesInState(this)
}
 
function propagateChangesInState(folder)
{  
  var i=0
 
  if (folder.isOpen)
  {
    if (folder.nodeImg)
      if (folder.isLastNode)
        folder.nodeImg.src = "/img/ftv2mlastnode.gif"
      else
   folder.nodeImg.src = "/img/ftv2mnode.gif"
    folder.iconImg.src = "/img/ftv2folderopen.gif"
    for (i=0; i<folder.nChildren; i++)
      folder.children[i].display()
  }
  else
  {
    if (folder.nodeImg)
      if (folder.isLastNode)
        folder.nodeImg.src = "/img/ftv2plastnode.gif"
      else
   folder.nodeImg.src = "/img/ftv2pnode.gif"
    folder.iconImg.src = "/img/ftv2folderclosed.gif"
    for (i=0; i<folder.nChildren; i++)
      folder.children[i].hide()
  } 
}
 
function hideFolder()
{
  if (browserVersion == 1) {
    if (this.navObj.style.display == "none")
      return
    this.navObj.style.display = "none"
  } else {
    if (this.navObj.visibility == "hiden")
      return
    this.navObj.visibility = "hiden"
  }
  
  this.setState(0)
}
 
function initializeFolder(level, lastNode, leftSide)
{
var j=0
var i=0
var numberOfFolders
var numberOfDocs
var nc
     
  nc = this.nChildren
  
  this.createIndex()
 
  var auxEv = ""
 
  if (browserVersion > 0)
    auxEv = "<a href='javascript:clickOnNode("+this.id+")'>"
  else
    auxEv = "<a>"
 
  if (level>0)
    if (lastNode) //the last 'brother' in the children array
    {
      this.renderOb(leftSide + auxEv + "<img name='nodeIcon" + this.id + "' src='/img/ftv2mlastnode.gif' width=16 height=22 border=0></a>")
      leftSide = leftSide + "<img src='/img/ftv2blank.gif' width=16 height=22>" 
      this.isLastNode = 1
    }
    else
    {
      this.renderOb(leftSide + auxEv + "<img name='nodeIcon" + this.id + "' src='/img/ftv2mnode.gif' width=16 height=22 border=0></a>")
      leftSide = leftSide + "<img src='/img/ftv2vertline.gif' width=16 height=22>"
      this.isLastNode = 0
    }
  else
    this.renderOb("")
  
  if (nc > 0)
  {
    level = level + 1
    for (i=0 ; i < this.nChildren; i++) 
    {
      if (i == this.nChildren-1)
        this.children[i].initialize(level, 1, leftSide)
      else
        this.children[i].initialize(level, 0, leftSide)
      }
  }
}
 
function drawFolder(leftSide)
{
  if (browserVersion == 2) {
    if (!doc.yPos)
      doc.yPos=8
    doc.write("<layer id='folder" + this.id + "' top=" + doc.yPos + " visibility=hiden>")
  }
  
  doc.write("<table ")
  if (browserVersion == 1)
    doc.write(" id='folder" + this.id + "' style='position:block;' ")
  doc.write(" border=0 cellspacing=0 cellpadding=0>")
  doc.write("<tr><td>")
  doc.write(leftSide)
  this.outputLink()
  doc.write("<img name='folderIcon" + this.id + "' ")
  doc.write("src='" + this.iconSrc+"' border=0></a>")
  doc.write("</td><td valign=middle nowrap>")
  if (USETEXTLINKS)
  {
    this.outputLink()
    doc.write(this.desc + "</a>")
  }
  else
    doc.write(this.desc)
  doc.write("</td>") 
  doc.write("</table>")
  
  if (browserVersion == 2) {
    doc.write("</layer>")
  }
 
  if (browserVersion == 1) {
    this.navObj = doc.all["folder"+this.id]
    this.iconImg = doc.all["folderIcon"+this.id]
    this.nodeImg = doc.all["nodeIcon"+this.id]
  } else if (browserVersion == 2) {
    this.navObj = doc.layers["folder"+this.id]
    this.iconImg = this.navObj.document.images["folderIcon"+this.id]
    this.nodeImg = this.navObj.document.images["nodeIcon"+this.id]
    doc.yPos=doc.yPos+this.navObj.clip.height
  }
}
 
function outputFolderLink()
{
  if (this.hreference)
  {
    doc.write("<a href='" + this.hreference + "' TARGET=right ")
    if (browserVersion > 0)
      doc.write("onClick='javascript:clickOnFolder("+this.id+")'")
    doc.write(">")
  }
  else
    doc.write("<a>")
//  doc.write("<a href='javascript:clickOnFolder("+this.id+")'>")  
}
 
function addChild(childNode)
{
  this.children[this.nChildren] = childNode
  this.nChildren++
  return childNode
}
 
function folderSubEntries()
{
  var i = 0
  var se = this.nChildren
 
  for (i=0; i < this.nChildren; i++){
    if (this.children[i].children) //is a folder
      se = se + this.children[i].subEntries()
  }
 
  return se
}
 
 
// Definition of class Item (a document or link inside a Folder)
// *************************************************************
 
function Item(itemDescription, itemLink) // Constructor
{
  // constant data
  this.desc = itemDescription
  this.link = itemLink
  this.id = -1 //initialized in initalize()
  this.navObj = 0 //initialized in render()
  this.iconImg = 0 //initialized in render()
  this.iconSrc = "/img/ftv2doc.gif"
 
  // methods
  this.initialize = initializeItem
  this.createIndex = createEntryIndex
  this.hide = hideItem
  this.display = display
  this.renderOb = drawItem
  this.totalHeight = totalHeight
}
 
function hideItem()
{
  if (browserVersion == 1) {
    if (this.navObj.style.display == "none")
      return
    this.navObj.style.display = "none"
  } else {
    if (this.navObj.visibility == "hiden")
      return
    this.navObj.visibility = "hiden"
  }    
}
 
function initializeItem(level, lastNode, leftSide)

  this.createIndex()
 
  if (level>0)
    if (lastNode) //the last 'brother' in the children array
    {
      this.renderOb(leftSide + "<img src='/img/ftv2lastnode.gif' width=16 height=22>")
      leftSide = leftSide + "<img src='/img/ftv2blank.gif' width=16 height=22>" 
    }
    else
    {
      this.renderOb(leftSide + "<img src='/img/ftv2node.gif' width=16 height=22>")
      leftSide = leftSide + "<img src='/img/ftv2vertline.gif' width=16 height=22>"
    }
  else
    this.renderOb("")  
}
 
function drawItem(leftSide)
{
  if (browserVersion == 2)
    doc.write("<layer id='item" + this.id + "' top=" + doc.yPos + " visibility=hiden>")
    
  doc.write("<table ")
  if (browserVersion == 1)
    doc.write(" id='item" + this.id + "' style='position:block;' ")
  doc.write(" border=0 cellspacing=0 cellpadding=0>")
  doc.write("<tr><td>")
  doc.write(leftSide)
  doc.write("<a href=" + this.link + ">")
  doc.write("<img id='itemIcon"+this.id+"' ")
  doc.write("src='"+this.iconSrc+"' border=0>")
  doc.write("</a>")
  doc.write("</td><td valign=middle nowrap>")
  if (USETEXTLINKS)
  {
    if( this.link=="" )
    {
      doc.write("" + this.desc + "")
    }
    else
    {
      doc.write("<a href=" + this.link + ">" + this.desc + "</a>")
    }
  }
  else
    doc.write(this.desc)
  doc.write("</table>")
  
  if (browserVersion == 2)
    doc.write("</layer>")
 
  if (browserVersion == 1) {
    this.navObj = doc.all["item"+this.id]
    this.iconImg = doc.all["itemIcon"+this.id]
  } else if (browserVersion == 2) {
    this.navObj = doc.layers["item"+this.id]
    this.iconImg = this.navObj.document.images["itemIcon"+this.id]
    doc.yPos=doc.yPos+this.navObj.clip.height
  }
}
 
 
// Methods common to both objects (pseudo-inheritance)
// ********************************************************
 
function display()
{
  if (browserVersion == 1)
    this.navObj.style.display = "block"
  else
    this.navObj.visibility = "show"
}
 
function createEntryIndex()
{
  this.id = nEntries
  indexOfEntries[nEntries] = this
  nEntries++
}
 
// total height of subEntries open
function totalHeight() //used with browserVersion == 2
{
  var h = this.navObj.clip.height
  var i = 0
  
  if (this.isOpen) //is a folder and _is_ open
    for (i=0 ; i < this.nChildren; i++) 
      h = h + this.children[i].totalHeight()
 
  return h
}
 
 
// Events
// *********************************************************
 
function clickOnFolder(folderId)
{
  var clicked = indexOfEntries[folderId]
 
  if (!clicked.isOpen)
    clickOnNode(folderId)
 
  return 
 
  if (clicked.isSelected)
    return
}
 
function clickOnNode(folderId)
{
  var clickedFolder = 0
  var state = 0
 
  clickedFolder = indexOfEntries[folderId]
  state = clickedFolder.isOpen
 
  clickedFolder.setState(!state) //open<->close 
}
 
function initializeDocument()
{
  if (doc.all)
    browserVersion = 1 //IE4  
  else
    if (doc.layers)
      browserVersion = 2 //NS4
    else
      browserVersion = 0 //other
 
  foldersTree.initialize(0, 1, "")
  foldersTree.display()
 
  if (browserVersion > 0)
  {
    doc.write("<layer top="+indexOfEntries[nEntries-1].navObj.top+">&nbsp;</layer>")
 
    // close the whole tree
    clickOnNode(0)
    // open the root folder
    clickOnNode(0)
  }
}
 
// Auxiliary Functions for Folder-Treee backward compatibility
// *********************************************************
 
function gFld(description, hreference)
{
  description="<font style=font-size:9pt; font-color: #00ff00;background-color:#ccff99>" + description
  folder = new Folder(description, hreference)
  return folder
}
 
function gLnk(target, description, linkData)
{
  description="<font style=font-size:9pt; font-color: #0000ff;background-color:#ccff99>" + description
  fullLink = ""

  if( linkData!="" )
  {
  if (target==0)
  {
    fullLink = "'"+linkData+"' target=maincontent"
  }
  else
  {
    if (target==1)
       fullLink = "'http://"+linkData+"' target=_top"
    else
       fullLink = "'http://"+linkData+"' target=/"basefrm/""
  }
  }
 
  linkItem = new Item(description, fullLink)  
  return linkItem
}
 
function insFld(parentFolder, childFolder)
{
  return parentFolder.addChild(childFolder)
}
 
function insDoc(parentFolder, document)
{
  parentFolder.addChild(document)
}
 
// Global variables
// ****************
 
USETEXTLINKS = 1
indexOfEntries = new Array
nEntries = 0
doc = document
browserVersion = 0
selectedFolder=0
 

 

在jsp里面的代码如下。

 

<script language="JavaScript" src="/js/sitemap.js">
  </script>
  <script language="JavaScript">
  <!--
  
foldersTree = gFld("<b><font color='#336633'>組織層級架構</font></b>", "")

// ROOT 最頂層
<%
 for( int i=0; optlist!=null && i<optlist.size(); i++ ) {
  OrgPosition opt = (OrgPosition)optlist.get(i);
  
            if( opt.getParent_pos_id().length()<=0 ) {//看本来数据有没有上一层,如果没有foldersTree代替位置。
%>

//<%= "G" + opt.getPos_id() %> 随便写就是一个标志,

//<%= opt.getPos_name() %>显示的内容。

//(<%= opt.getDepth() %>) 可有可无。就是记录当前层次。(建议使用)

//<%= "G" + opt.getParent_pos_id() %>上一层标志

 


<%= "G" + opt.getPos_id() %> = insFld(foldersTree, gFld("<%= opt.getPos_name() %>(<%= opt.getDepth() %>) <a href='authorize.ModifyOrgPosition?todo=EDIT&pos_id=<%= opt.getPos_id() %>'>編輯</a> <a href='authorize.ModifyOrgPosition?todo=DEL&pos_id=<%= opt.getPos_id() %>'>刪除</a>", ""))
<%
            } else {
%>
<%= "G" + opt.getPos_id() %> = insFld(<%= "G" + opt.getParent_pos_id() %>, gFld("<%= opt.getPos_name() %>(<%= opt.getDepth() %>) <a href='authorize.ModifyOrgPosition?todo=EDIT&pos_id=<%= opt.getPos_id() %>'>編輯</a> <a href='authorize.ModifyOrgPosition?todo=DEL&pos_id=<%= opt.getPos_id() %>'>刪除</a>", ""))
<%
            }
 }
%>
initializeDocument()

function openAll() {
 for( i=1; i<=<%= optlist.size() %>; i++ ) {
      clickOnNode(i);
 }
}


  //-->
  </script>

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