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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_COMPOSITOR_LAYER_OWNER_H_ | 5 #ifndef UI_COMPOSITOR_LAYER_OWNER_H_ |
6 #define UI_COMPOSITOR_LAYER_OWNER_H_ | 6 #define UI_COMPOSITOR_LAYER_OWNER_H_ |
7 | 7 |
8 #include "base/compiler_specific.h" | 8 #include "base/compiler_specific.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
10 #include "ui/compositor/compositor_export.h" | 10 #include "ui/compositor/compositor_export.h" |
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26 // function, and the caller is then responsible for disposing of the layer | 26 // function, and the caller is then responsible for disposing of the layer |
27 // once any animation completes. Note that layer() will remain valid until the | 27 // once any animation completes. Note that layer() will remain valid until the |
28 // end of ~LayerOwner(). | 28 // end of ~LayerOwner(). |
29 scoped_ptr<Layer> AcquireLayer(); | 29 scoped_ptr<Layer> AcquireLayer(); |
30 | 30 |
31 // Asks the owner to recreate the layer, returning the old Layer. NULL is | 31 // Asks the owner to recreate the layer, returning the old Layer. NULL is |
32 // returned if there is no existing layer, or recreate is not supported. | 32 // returned if there is no existing layer, or recreate is not supported. |
33 // | 33 // |
34 // This does not recurse. Existing children of the layer are moved to the new | 34 // This does not recurse. Existing children of the layer are moved to the new |
35 // layer. | 35 // layer. |
36 scoped_ptr<Layer> RecreateLayer(); | 36 virtual scoped_ptr<Layer> RecreateLayer(); |
37 | 37 |
38 ui::Layer* layer() { return layer_; } | 38 ui::Layer* layer() { return layer_; } |
39 const ui::Layer* layer() const { return layer_; } | 39 const ui::Layer* layer() const { return layer_; } |
40 | 40 |
41 void set_layer_owner_delegate(LayerOwnerDelegate* delegate) { | 41 void set_layer_owner_delegate(LayerOwnerDelegate* delegate) { |
42 layer_owner_delegate_ = delegate; | 42 layer_owner_delegate_ = delegate; |
43 } | 43 } |
44 | 44 |
45 protected: | 45 protected: |
46 void DestroyLayer(); | 46 void DestroyLayer(); |
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57 Layer* layer_; | 57 Layer* layer_; |
58 | 58 |
59 LayerOwnerDelegate* layer_owner_delegate_; | 59 LayerOwnerDelegate* layer_owner_delegate_; |
60 | 60 |
61 DISALLOW_COPY_AND_ASSIGN(LayerOwner); | 61 DISALLOW_COPY_AND_ASSIGN(LayerOwner); |
62 }; | 62 }; |
63 | 63 |
64 } // namespace ui | 64 } // namespace ui |
65 | 65 |
66 #endif // UI_COMPOSITOR_LAYER_OWNER_H_ | 66 #endif // UI_COMPOSITOR_LAYER_OWNER_H_ |
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