1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef UI_APP_LIST_APP_LIST_ITEM_LIST_OBSERVER_H_
6 #define UI_APP_LIST_APP_LIST_ITEM_LIST_OBSERVER_H_
8 #include "base/basictypes.h"
9 #include "ui/app_list/app_list_export.h"
15 class APP_LIST_EXPORT AppListItemListObserver {
17 // Triggered after |item| has been added to the list at |index|.
18 virtual void OnListItemAdded(size_t index, AppListItem* item) {}
20 // Triggered after an item has been removed from the list at |index|, just
21 // before the item is deleted.
22 virtual void OnListItemRemoved(size_t index, AppListItem* item) {}
24 // Triggered after |item| has been moved from |from_index| to |to_index|.
25 virtual void OnListItemMoved(size_t from_index,
30 virtual ~AppListItemListObserver() {}
33 } // namespace app_list
35 #endif // UI_APP_LIST_APP_LIST_ITEM_LIST_OBSERVER_H_