| // 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 UI_DISPLAY_TYPES_NATIVE_DISPLAY_OBSERVER_H_ |
| #define UI_DISPLAY_TYPES_NATIVE_DISPLAY_OBSERVER_H_ |
| |
| #include "ui/display/types/display_types_export.h" |
| |
| namespace display { |
| |
| // Observer class used by NativeDisplayDelegate to announce when the display |
| // configuration changes. |
| class DISPLAY_TYPES_EXPORT NativeDisplayObserver { |
| public: |
| virtual ~NativeDisplayObserver() {} |
| |
| virtual void OnConfigurationChanged() = 0; |
| |
| // DisplaySnapshots owned by NativeDisplayDelegate are about to be |
| // invalidated and any stored pointers to them should be deleted. |
| virtual void OnDisplaySnapshotsInvalidated() = 0; |
| }; |
| |
| } // namespace display |
| |
| #endif // UI_DISPLAY_TYPES_NATIVE_DISPLAY_OBSERVER_H_ |