| // Copyright (c) 2012 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. |
| |
| #ifndef UI_APP_LIST_APP_LIST_MODEL_OBSERVER_H_ |
| #define UI_APP_LIST_APP_LIST_MODEL_OBSERVER_H_ |
| |
| #include "ui/app_list/app_list_export.h" |
| |
| namespace app_list { |
| |
| class AppListItem; |
| |
| class APP_LIST_EXPORT AppListModelObserver { |
| public: |
| // Invoked when AppListModel's status has changed. |
| virtual void OnAppListModelStatusChanged() {} |
| |
| // Triggered after |item| has been added to the model. |
| virtual void OnAppListItemAdded(AppListItem* item) {} |
| |
| // Triggered just before an item is deleted from the model. |
| virtual void OnAppListItemWillBeDeleted(AppListItem* item) {} |
| |
| // Triggered just after an item is deleted from the model. |
| virtual void OnAppListItemDeleted() {} |
| |
| // Triggered after |item| has moved, changed folders, or changed properties. |
| virtual void OnAppListItemUpdated(AppListItem* item) {} |
| |
| protected: |
| virtual ~AppListModelObserver() {} |
| }; |
| |
| } // namespace app_list |
| |
| #endif // UI_APP_LIST_APP_LIST_MODEL_OBSERVER_H_ |