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- var persisteduls=new Object()
- var ddtreemenu=new Object()
- ddtreemenu.closefolder="plugins/roles_tree/lib/plus_box.png?>" //set image path to "closed" folder image
- ddtreemenu.openfolder="plugins/roles_tree/lib/minus_box.png?>" //set image path to "open" folder image
- //////////No need to edit beyond here///////////////////////////
- ddtreemenu.createTree=function(treeid, enablepersist, persistdays){
- var ultags=document.getElementById(treeid).getElementsByTagName("ul")
- if (typeof persisteduls[treeid]=="undefined")
- persisteduls[treeid]=(enablepersist==true && ddtreemenu.getCookie(treeid)!="")? ddtreemenu.getCookie(treeid).split(",") : ""
- for (var i=0; i<ultags.length; i++)
- ddtreemenu.buildSubTree(treeid, ultags[i], i)
- if (enablepersist==true){ //if enable persist feature
- var durationdays=(typeof persistdays=="undefined")? 1 : parseInt(persistdays)
- ddtreemenu.dotask(window, function(){
- ddtreemenu.rememberstate(treeid, durationdays)
- }, "unload") //save opened UL indexes on body unload
- }
- }
- ddtreemenu.buildSubTree=function(treeid, ulelement, index){
- ulelement.parentNode.className="submenu"
- if (typeof persisteduls[treeid]=="object"){ //if cookie exists (persisteduls[treeid] is an array versus "" string)
- if (ddtreemenu.searcharray(persisteduls[treeid], index)){
- ulelement.setAttribute("rel", "open")
- ulelement.style.display="block"
- ulelement.parentNode.style.backgroundImage="url("+ddtreemenu.openfolder+")"
- }
- else
- ulelement.setAttribute("rel", "closed")
- } //end cookie persist code
- else if (ulelement.getAttribute("rel")==null || ulelement.getAttribute("rel")==false) //if no cookie and UL has NO rel attribute explicted added by user
- ulelement.setAttribute("rel", "closed")
- else if (ulelement.getAttribute("rel")=="open") //else if no cookie and this UL has an explicit rel value of "open"
- ddtreemenu.expandSubTree(treeid, ulelement) //expand this UL plus all parent ULs (so the most inner UL is revealed!)
- ulelement.parentNode.onclick=function(e){
- var submenu=this.getElementsByTagName("ul")[0]
- if (submenu.getAttribute("rel")=="closed"){
- submenu.style.display="block"
- submenu.setAttribute("rel", "open")
- ulelement.parentNode.style.backgroundImage="url("+ddtreemenu.openfolder+")"
- }
- else if (submenu.getAttribute("rel")=="open"){
- submenu.style.display="none"
- submenu.setAttribute("rel", "closed")
- ulelement.parentNode.style.backgroundImage="url("+ddtreemenu.closefolder+")"
- }
- ddtreemenu.preventpropagate(e)
- }
- ulelement.onclick=function(e){
- ddtreemenu.preventpropagate(e)
- }
- }
- ddtreemenu.expandSubTree=function(treeid, ulelement){ //expand a UL element and any of its parent ULs
- var rootnode=document.getElementById(treeid)
- var currentnode=ulelement
- currentnode.style.display="block"
- currentnode.parentNode.style.backgroundImage="url("+ddtreemenu.openfolder+")"
- while (currentnode!=rootnode){
- if (currentnode.tagName=="UL"){ //if parent node is a UL, expand it too
- currentnode.style.display="block"
- currentnode.setAttribute("rel", "open") //indicate it's open
- currentnode.parentNode.style.backgroundImage="url("+ddtreemenu.openfolder+")"
- }
- currentnode=currentnode.parentNode
- }
- }
- ddtreemenu.flatten=function(treeid, action){ //expand or contract all UL elements
- var ultags=document.getElementById(treeid).getElementsByTagName("ul")
- for (var i=0; i<ultags.length; i++){
- ultags[i].style.display=(action=="expand")? "block" : "none"
- var relvalue=(action=="expand")? "open" : "closed"
- ultags[i].setAttribute("rel", relvalue)
- ultags[i].parentNode.style.backgroundImage=(action=="expand")? "url("+ddtreemenu.openfolder+")" : "url("+ddtreemenu.closefolder+")"
- }
- }
- ddtreemenu.rememberstate=function(treeid, durationdays){ //store index of opened ULs relative to other ULs in Tree into cookie
- var ultags=document.getElementById(treeid).getElementsByTagName("ul")
- var openuls=new Array()
- for (var i=0; i<ultags.length; i++){
- if (ultags[i].getAttribute("rel")=="open")
- openuls[openuls.length]=i //save the index of the opened UL (relative to the entire list of ULs) as an array element
- }
- if (openuls.length==0) //if there are no opened ULs to save/persist
- openuls[0]="none open" //set array value to string to simply indicate all ULs should persist with state being closed
- ddtreemenu.setCookie(treeid, openuls.join(","), durationdays) //populate cookie with value treeid=1,2,3 etc (where 1,2... are the indexes of the opened ULs)
- }
- ////A few utility functions below//////////////////////
- ddtreemenu.getCookie=function(Name){ //get cookie value
- var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
- if (document.cookie.match(re)) //if cookie found
- return document.cookie.match(re)[0].split("=")[1] //return its value
- return ""
- }
- ddtreemenu.setCookie=function(name, value, days){ //set cookei value
- var expireDate = new Date()
- //set "expstring" to either future or past date, to set or delete cookie, respectively
- var expstring=expireDate.setDate(expireDate.getDate()+parseInt(days))
- document.cookie = name+"="+value+"; expires="+expireDate.toGMTString()+"; path=/";
- }
- ddtreemenu.searcharray=function(thearray, value){ //searches an array for the entered value. If found, delete value from array
- var isfound=false
- for (var i=0; i<thearray.length; i++){
- if (thearray[i]==value){
- isfound=true
- thearray.shift() //delete this element from array for efficiency sake
- break
- }
- }
- return isfound
- }
- ddtreemenu.preventpropagate=function(e){ //prevent action from bubbling upwards
- if (typeof e!="undefined")
- e.stopPropagation()
- else
- event.cancelBubble=true
- }
- ddtreemenu.dotask=function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
- var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
- if (target.addEventListener)
- target.addEventListener(tasktype, functionref, false)
- else if (target.attachEvent)
- target.attachEvent(tasktype, functionref)
- }
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