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| 1 // Copyright 2014 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. |
| 4 |
| 5 #ifndef SERVICES_WINDOW_MANAGER_FOCUS_CONTROLLER_OBSERVER_H_ |
| 6 #define SERVICES_WINDOW_MANAGER_FOCUS_CONTROLLER_OBSERVER_H_ |
| 7 |
| 8 namespace mojo { |
| 9 class View; |
| 10 } |
| 11 |
| 12 namespace window_manager { |
| 13 |
| 14 class FocusControllerObserver { |
| 15 public: |
| 16 // Called when |active| gains focus, or there is no active view |
| 17 // (|active| is null in this case.). |
| 18 virtual void OnActivated(mojo::View* gained_active) = 0; |
| 19 |
| 20 // Called when focus moves to |gained_focus|. |
| 21 virtual void OnFocused(mojo::View* gained_focus) = 0; |
| 22 |
| 23 // Called when during view activation the currently active view is |
| 24 // selected for activation. This can happen when a view requested for |
| 25 // activation cannot be activated because a system modal view is active. |
| 26 virtual void OnAttemptToReactivateView(mojo::View* request_active, |
| 27 mojo::View* actual_active) {} |
| 28 |
| 29 protected: |
| 30 virtual ~FocusControllerObserver() {} |
| 31 }; |
| 32 |
| 33 } // namespace window_manager |
| 34 |
| 35 #endif // SERVICES_WINDOW_MANAGER_FOCUS_CONTROLLER_OBSERVER_H_ |
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