files/module.js

   1 // File Tree Viewer
   2 // Author: Dongsheng Cai <dongsheng@moodle.com>
   3 M.core_filetree = {
   4     y3: null,
   5     api: M.cfg.wwwroot+'/files/filebrowser_ajax.php',
   6     request: function(url, node, cb) {
   7         var api = this.api + '?action=getfiletree';
   8         var params = [];
   9         params['fileurl'] = url;
  10         var scope = this;
  11         params['sesskey']=M.cfg.sesskey;
  12         var cfg = {
  13             method: 'POST',
  14             on: {
  15                 complete: function(id,o,p) {
  16                     try {
  17                         var data = this.y3.JSON.parse(o.responseText);
  18                     } catch(e) {
  19                         alert(e.toString());
  20                         return;
  21                     }
  22                     if (data && data.length==0) {
  23                         node.isLeaf = true;
  24                     } else {
  25                         for (i in data) {
  26                             var mynode = {
  27                                 label: data[i].filename,
  28                                 href: data[i].url
  29                             };
  30                             var tmp = new YAHOO.widget.TextNode(mynode, node, false);
  31                             if (data[i].isdir) {
  32                                 tmp.isLeaf = false;
  33                             } else {
  34                                 tmp.isLeaf = true;
  35                                 tmp.target = '_blank';
  36                             }
  37                         }
  38                     }
  39                     cb();
  40                 }
  41             },
  42             arguments: {
  43                 scope: scope
  44             },
  45             headers: {
  46                 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
  47             },
  48             data: build_querystring(params),
  49             context: this
  50         };
  51         this.y3.io(api, cfg);
  52     },
  53     init : function(Y, options){
  54         var tree = new YAHOO.widget.TreeView('course-file-tree-view');
  55         tree.setDynamicLoad(this.dynload);
  56         tree.subscribe("clickEvent", this.onclick);
  57         var root = tree.getRoot();
  58         var children = root.children;
  59         for (i in children) {
  60             if (children[i].className == 'file-tree-folder') {
  61                 children[i].isLeaf = false;
  62             } else {
  63                 children[i].isLeaf = true;
  64             }
  65         }
  66         tree.render();
  67         this.y3 = Y;
  68     },
  69     dynload: function(node, oncompletecb) {
  70         M.core_filetree.request(node.href, node, oncompletecb);
  71     },
  72     onclick: function(e) {
  73         YAHOO.util.Event.preventDefault(e);
  74     }
  75 }