explorer.js

来自「Hippo CMS是一个以信息为中心的开源内容管理系统。Hippo CMS目标是」· JavaScript 代码 · 共 119 行

/*
* Copyright 2001-2007 Hippo (www.hippo.nl)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
 * explorer.js
 *
 * User Interface layer for the CMS Editor Framework
 *
 */

cocoon.load("site:/generic/generic.js");
cocoon.load("site:/workflow/workflow.js");
cocoon.load("site:/util/flow/lib-io.js");

importClass(Packages.java.io.BufferedOutputStream);
importClass(Packages.java.io.File);
importClass(Packages.java.io.FileOutputStream);

importClass(Packages.java.util.HashSet);

importClass(Packages.nl.hippo.uidgenerator.UIDGenerator);
importClass(Packages.nl.hippo.util.FileDeletionTask);

importClass(Packages.org.apache.cocoon.components.cron.JobScheduler);

// globals
var perspective = null;


function trees() {

  var path = cocoon.parameters["path"];
  var perspective = cocoon.parameters["perspective"];
  var template = cocoon.parameters["template"];

  var sources = cocoon.parameters["sources"];
  if(sources != null)
    sources = sources.split(',');
  
  // each entry in "tree" is a path to a currently expanded node in the folder tree
  if(perspective == null || perspective == '')
  {
    if (path.length > 2 && path.charAt(path.length-1) == '/') {
      perspective = path.substring(0, path.length - 1);
    }
  }
  var tree = cocoon.session.getAttribute("tree" + perspective);
  // get the requested action (expand or collapse)
  var action = cocoon.request.get("action");
    
  // remove trailing slash
  if (path.length > 2 && path.charAt(path.length-1) == '/') {
    path = path.substring(0, path.length - 1);
  }
     
  if (tree == null) { // initialize tree
    tree = new HashSet();
    cocoon.session.setAttribute("tree"+perspective, tree);
    
    // TODO: root nodes sometimes disappear from tree ?!? (temp fix below)
    // UPDATE: [JR] This should be fixed now.
    // UPDATE: [AB] Don't add a 'deep' path on init
  if(action != "expandPath")
      tree.add(path);
  }

  if (tree.contains(path)) { // collapse or browser refresh
    if (action == "collapse") {
      // collapse this node and all descendants
      var exitTree = new HashSet();
      var i = tree.iterator();
      while (i.hasNext()) {
        var iValue = i.next();
        if (iValue.indexOf(path) == 0) {
          exitTree.add(iValue)
        }               
      }

      var i = exitTree.iterator();
      while (i.hasNext()) {
        tree.remove(i.next());
      }
    }
    else if(tree.size() == 1) { //init
      for(var i=0; i<sources.length;i++){
        if(!tree.contains(sources[i]))
          tree.add(sources[i]);
      }
    }
  }
  else if (action == "expandPath") {
    var folders = path.split("/");
    var newPath = "";
    for(var i=1;i<folders.length;i++){
    	newPath += "/" + folders[i];
      if(!tree.contains(newPath))
        tree.add(newPath);
    }
  }else { // expand is default action
    tree.add(path);
  }

  cocoon.session.setAttribute("tree" + perspective, tree); 
  cocoon.sendPage(template, {"tree" : tree});
}