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1 // Copyright 2016 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 ASH_COMMON_SHELF_SHELF_BACKGROUND_ANIMATOR_OBSERVER_H_ | |
6 #define ASH_COMMON_SHELF_SHELF_BACKGROUND_ANIMATOR_OBSERVER_H_ | |
7 | |
8 #include "ash/ash_export.h" | |
9 #include "third_party/skia/include/core/SkColor.h" | |
10 | |
11 namespace ash { | |
12 | |
13 // Observer for the ShelfBackgroundAnimator class. | |
14 class ASH_EXPORT ShelfBackgroundAnimatorObserver { | |
15 public: | |
16 // Called when the Shelf's background should be updated. | |
17 virtual void UpdateShelfBackground(SkColor color) {} | |
18 | |
19 // Called when the Shelf item (aka button) backgrounds should be updated. | |
20 virtual void UpdateShelfItemBackground(SkColor color) {} | |
21 | |
22 protected: | |
23 virtual ~ShelfBackgroundAnimatorObserver() {} | |
24 }; | |
25 | |
26 } // namespace ash | |
27 | |
28 #endif // ASH_COMMON_SHELF_SHELF_BACKGROUND_ANIMATOR_OBSERVER_H_ | |
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