MDL-21400 converted mod/folder to new JS coding style

mod/folder/locallib.php

@@ -43,7 +43,7 @@ function folder_print_tree($folder, $cm, $course) {
     echo '<div id="folder_tree">';
     echo folder_htmllize_tree($dir, $folder, $context);
     echo '</div>';
-    $PAGE->requires->js_function_call('folder_tree_init', array(true));
+    $PAGE->requires->js_init_call('M.mod_folder.init_tree', array(true));
 }
 
 /**

mod/folder/module.js

@@ -21,17 +21,21 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-function folder_tree_init(expand_all) {
-    var tree = new YAHOO.widget.TreeView("folder_tree");
+M.mod_folder = {};
 
-    tree.subscribe("clickEvent", function(node, event) {
-        // we want normal clicking which redirects to url
-        return false;
+M.mod_folder.init_tree = function(Y, expand_all) {
+    Y.use('yui2-treeview', function(Y) {
+        var tree = new YAHOO.widget.TreeView("folder_tree");
+
+        tree.subscribe("clickEvent", function(node, event) {
+            // we want normal clicking which redirects to url
+            return false;
+        });
+
+        if (expand_all) {
+            tree.expandAll();
+        }
+
+        tree.render();
     });
-
-    if (expand_all) {
-        tree.expandAll();
-    }
-
-    tree.render();
 }

mod/folder/view.php

@@ -46,9 +46,6 @@ $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 add_to_log($course->id, 'folder', 'view', 'view.php?id='.$cm->id, $folder->id, $cm->id);
 
 $PAGE->set_url('/mod/folder/view.php', array('id' => $cm->id));
-$PAGE->requires->yui2_lib('json');
-$PAGE->requires->yui2_lib('treeview');
-$PAGE->requires->js('/mod/folder/functions.js');
 
 $PAGE->set_title($course->shortname.': '.$folder->name);
 $PAGE->set_heading($course->fullname);