added back button to repositorybrowser

scm-webapp/src/main/webapp/resources/js/repository/sonia.repository.repositorybrowser.js

@@ -51,7 +51,13 @@ Sonia.repository.RepositoryBrowser = Ext.extend(Ext.grid.GridPanel, {
       root: 'file.children',
       idProperty: 'path',
       autoLoad: true,
-      autoDestroy: true
+      autoDestroy: true,
+      listeners: {
+        load: {
+          fn: this.loadStore,
+          scope: this
+        }
+      }
     });
     
     var browserColModel = new Ext.grid.ColumnModel({
@@ -107,9 +113,43 @@ Sonia.repository.RepositoryBrowser = Ext.extend(Ext.grid.GridPanel, {
     Sonia.repository.RepositoryBrowser.superclass.initComponent.apply(this, arguments);
   },
   
+  loadStore: function(store, records, extra){
+    var path = extra.params.path;
+    if ( path != null && path.length > 0 ){
+      
+      var index = path.lastIndexOf('/');
+      if ( index > 0 ){
+        path = path.substr(0, index);
+      } else {
+        path = '';
+      }
+      
+      var File = Ext.data.Record.create([{
+        name: 'name'
+      },{
+        name: 'path'
+      },{
+        name: 'directory'
+      },{
+        name: 'length'
+      },{
+        name: 'lastModified'
+      }]);
+    
+      store.insert(0, new File({
+        name: '..',
+        path: path,
+        directory: true,
+        length: 0
+      }));
+    }
+  },
+  
   onClick: function(e){
     var el = e.getTarget('.scm-browser');
     
+    if ( el != null ){
+    
       var rel = el.rel.split(':');
       var path = rel[1];
 
@@ -118,6 +158,7 @@ Sonia.repository.RepositoryBrowser = Ext.extend(Ext.grid.GridPanel, {
       } else {
         this.openFile(path);
       }
+    }
   },
   
   openFile: function(path){