| // 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. |
| |
| #ifndef MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_OBSERVER_H_ |
| #define MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_OBSERVER_H_ |
| |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| |
| namespace mojo { |
| namespace view_manager { |
| |
| class View; |
| |
| class ViewObserver { |
| public: |
| enum DispositionChangePhase { |
| DISPOSITION_CHANGING, |
| DISPOSITION_CHANGED |
| }; |
| |
| virtual void OnViewDestroy(View* view, DispositionChangePhase phase) {} |
| |
| protected: |
| virtual ~ViewObserver() {} |
| }; |
| |
| } // namespace view_manager |
| } // namespace mojo |
| |
| #endif // MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_OBSERVER_H_ |