Gallery.app: Update the ribbon control when the item is inserted.

ui/file_manager/gallery/js/gallery.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 'use strict';
 
 /**
  * Called from the main frame when unloading.
  * @param {boolean=} opt_exiting True if the app is exiting.
  */
@@ skipping 83 matching lines @@
         metadataEncoder,
         function(success) {
           if (!success) {
             reject('Failed to save the image.');
             return;
           }
 
           // The item's entry is updated to the latest entry. Update metadata.
           item.setMetadata(newMetadata);
 
+          // Current entry is updated.
+          // Dispatch an event.
+          var event = new Event('content');
+          event.item = item;
+          event.oldEntry = oldEntry;
+          event.metadata = newMetadata;
+          this.dispatchEvent(event);
+
           if (util.isSameEntry(oldEntry, item.getEntry())) {
-            // Current entry is updated.
-            // Dispatch an event.
-            var event = new Event('content');
-            event.item = item;
-            event.oldEntry = item.getEntry();
-            event.metadata = newMetadata;
-            this.dispatchEvent(event);
-
             // Need an update of metdataCache.
             this.metadataCache_.set(
                 item.getEntry(),
                 Gallery.METADATA_TYPE,
                 newMetadata);
           } else {
             // New entry is added and the item now tracks it.
             // Add another item for the old entry.
             var anotherItem = new Gallery.Item(
                 oldEntry, oldMetadata, this.metadataCache_);
-            this.splice(this.indexOf(item), 0, anotherItem);
+            // The item must be added behind the existing item so that it does
+            // not change the index of the existing item.
+            // TODO(hirono): Update the item index of the selection model
+            // correctly.
+            this.splice(this.indexOf(item) + 1, 0, anotherItem);
           }
 
           fulfill();
         }.bind(this));
   }.bind(this));
 };
 
 /**
  * Gallery for viewing and editing image files.
  *
@@ skipping 826 matching lines @@
   window.loadTimeData.data = backgroundComponents.stringData;
   gallery = new Gallery(backgroundComponents.volumeManager);
 };
 
 /**
  * Loads entries.
  */
 window.loadEntries = function(entries, selectedEntries) {
   gallery.load(entries, selectedEntries);
 };