function onSearchFormSubmit() {
  var searchValue = $("searchValue");

  var url = (UserFolderURL
	     + "foldersSearch?search=" + escape(searchValue.value)
	     + "&type=" + window.opener.userFolderType);
  if (document.userFoldersRequest) {
     document.userFoldersRequest.aborted = true;
     document.userFoldersRequest.abort();
  }
  document.userFoldersRequest
     = triggerAjaxRequest(url, userFoldersCallback);

  return false;
}

function addLineToTree(tree, parent, line) {
   var offset = 0;

   var nodes = line.split(";");
   if (window.opener.userFolderType == "user"
       || nodes.length > 1) {
      var parentNode = nodes[0];
      var userInfos = parentNode.split(":");
      var email = userInfos[1] + " <" + userInfos[2] + ">";
      tree.add(parent, 0, email, 0, '#', userInfos[0], 'person',
	       '', '',
	       ResourcesURL + '/abcard.gif',
	       ResourcesURL + '/abcard.gif');
      for (var i = 1; i < nodes.length; i++) {
	 var folderInfos = nodes[i].split(":");
	 var icon = ResourcesURL + '/';
	 if (folderInfos[2] == 'Contact')
	    icon += 'tb-mail-addressbook-flat-16x16.png';
	 else
	    icon += 'calendar-folder-16x16.png';
	 var folderId = userInfos[0] + ":" + folderInfos[1];
	 var name = folderInfos[0]; // name has the format "Folername (Firstname Lastname <email>)"
	 var pos = name.lastIndexOf(' (')
	 if (pos != -1)
	   name = name.substring(0, pos); // strip the part with fullname and email
	 tree.add(parent + i, parent, name, 0, '#', folderId,
		  folderInfos[2] + '-folder', '', '', icon, icon);
      }
      offset = nodes.length - 1;
   }
//    else
//       window.alert("nope:" + window.opener.userFolderType);

   return offset;
}

function buildTree(response) { 
   d = new dTree("d");
   d.config.folderLlinks = true;
   d.config.hideRoot = true;
   d.icon.root = ResourcesURL + '/tbtv_account_17x17.gif';
   d.icon.folder = ResourcesURL + '/tbtv_leaf_corner_17x17.gif';
   d.icon.folderOpen = ResourcesURL + '/tbtv_leaf_corner_17x17.gif';
   d.icon.node = ResourcesURL + '/tbtv_leaf_corner_17x17.gif';
   d.icon.line = ResourcesURL + '/tbtv_line_17x17.gif';
   d.icon.join = ResourcesURL + '/tbtv_junction_17x17.gif';
   d.icon.joinBottom = ResourcesURL + '/tbtv_corner_17x17.gif';
   d.icon.plus = ResourcesURL + '/tbtv_plus_17x17.gif';
   d.icon.plusBottom = ResourcesURL + '/tbtv_corner_plus_17x17.gif';
   d.icon.minus = ResourcesURL + '/tbtv_minus_17x17.gif';
   d.icon.minusBottom = ResourcesURL + '/tbtv_corner_minus_17x17.gif';
   d.icon.nlPlus = ResourcesURL + '/tbtv_corner_plus_17x17.gif';
   d.icon.nlMinus = ResourcesURL + '/tbtv_corner_minus_17x17.gif';
   d.icon.empty = ResourcesURL + '/empty.gif';
   d.add(0, -1, '');

   var lines = response.split("\n");
   var offset = 0;
   for (var i = 0; i < lines.length; i++) {
      if (lines[i].length > 0)
	 offset += addLineToTree(d, i + 1 + offset, lines[i]);
   }

   return d;
}

function onFolderTreeItemClick(event) {
   preventDefault(event);

   var topNode = $("d");
   if (topNode.selectedEntry)
      topNode.selectedEntry.deselect();
   this.selectElement();
   topNode.selectedEntry = this;

   if (window.opener.userFolderType == "user")
     $("addButton").disabled = false;
   else {
     var dataname = this.parentNode.getAttribute("dataname");
     $("addButton").disabled = (dataname.indexOf(":") == -1);
   };
}

function userFoldersCallback(http) {
  document.userFoldersRequest = null;
  var div = $("folders");
  if (http.status == 200) {
    var response = http.responseText;
    div.innerHTML = buildTree(http.responseText);
    div.clean = false;
    var nodes = document.getElementsByClassName("node", $("d"));
    for (i = 0; i < nodes.length; i++)
      $(nodes[i]).observe("click", onFolderTreeItemClick);
  }
  else if (http.status == 404)
    div.innerHTML = "";
}

function onConfirmFolderSelection(event) {
  var topNode = $("d");
  if (topNode && topNode.selectedEntry) {
    var node = topNode.selectedEntry.parentNode;
    var folder = node.getAttribute("dataname");

    var folderName;
    if (window.opener.userFolderType == "user") {
      var spans = document.getElementsByClassName("nodeName",
						  topNode.selectedEntry);
      var email = spans[0].innerHTML;
      email = email.replace("&lt;", "<");
      email = email.replace("&gt;", ">");
      folderName = email;
    }
    else {
      var spans1 = document.getElementsByClassName("nodeName",
						   node);
      var spans2 = document.getElementsByClassName("nodeName",
						   node.parentNode.previousSibling);
      var email = spans2[0].innerHTML;
      email = email.replace("&lt;", "<");
      email = email.replace("&gt;", ">");
      folderName = spans1[0].innerHTML + ' (' + email + ')';
    }
    var data = { folderName: folderName, folder: folder, window: window };
    if (parent$(accessToSubscribedFolder(folder)))
      window.alert(clabels["You have already subscribed to that folder!"]);
    else
      window.opener.subscribeToFolder(window.opener.userFolderCallback, data);
  }
}

function onFolderSearchKeyDown(event) {
  var div = $("folders");
  if (!div.clean) {
    div.innerHTML = "";
    div.clean = true;
  }
}

function initUserFoldersWindow() {
  $("searchValue").observe("keydown", onFolderSearchKeyDown);
  var addButton = $("addButton");
  addButton.observe("click", onConfirmFolderSelection);
  addButton.disabled = true;
}

FastInit.addOnLoad(initUserFoldersWindow);