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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 #include "cc/layers/painted_scrollbar_layer.h" | 5 #include "cc/layers/painted_scrollbar_layer.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/auto_reset.h" | 9 #include "base/auto_reset.h" |
10 #include "cc/base/math_util.h" | 10 #include "cc/base/math_util.h" |
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54 AddMainThreadScrollingReasons( | 54 AddMainThreadScrollingReasons( |
55 MainThreadScrollingReason::kScrollbarScrolling); | 55 MainThreadScrollingReason::kScrollbarScrolling); |
56 } | 56 } |
57 | 57 |
58 PaintedScrollbarLayer::~PaintedScrollbarLayer() {} | 58 PaintedScrollbarLayer::~PaintedScrollbarLayer() {} |
59 | 59 |
60 int PaintedScrollbarLayer::ScrollLayerId() const { | 60 int PaintedScrollbarLayer::ScrollLayerId() const { |
61 return scroll_layer_id_; | 61 return scroll_layer_id_; |
62 } | 62 } |
63 | 63 |
64 void PaintedScrollbarLayer::SetScrollLayer(int layer_id) { | |
65 if (layer_id == scroll_layer_id_) | |
66 return; | |
67 | |
68 scroll_layer_id_ = layer_id; | |
69 SetNeedsFullTreeSync(); | |
70 } | |
71 | |
72 bool PaintedScrollbarLayer::OpacityCanAnimateOnImplThread() const { | 64 bool PaintedScrollbarLayer::OpacityCanAnimateOnImplThread() const { |
73 return scrollbar_->IsOverlay(); | 65 return scrollbar_->IsOverlay(); |
74 } | 66 } |
75 | 67 |
76 bool PaintedScrollbarLayer::AlwaysUseActiveTreeOpacity() const { | 68 bool PaintedScrollbarLayer::AlwaysUseActiveTreeOpacity() const { |
77 return true; | 69 return true; |
78 } | 70 } |
79 | 71 |
80 ScrollbarOrientation PaintedScrollbarLayer::orientation() const { | 72 ScrollbarOrientation PaintedScrollbarLayer::orientation() const { |
81 return scrollbar_->Orientation(); | 73 return scrollbar_->Orientation(); |
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285 | 277 |
286 scrollbar_->PaintPart(&canvas, part, layer_rect); | 278 scrollbar_->PaintPart(&canvas, part, layer_rect); |
287 // Make sure that the pixels are no longer mutable to unavoid unnecessary | 279 // Make sure that the pixels are no longer mutable to unavoid unnecessary |
288 // allocation and copying. | 280 // allocation and copying. |
289 skbitmap.setImmutable(); | 281 skbitmap.setImmutable(); |
290 | 282 |
291 return UIResourceBitmap(skbitmap); | 283 return UIResourceBitmap(skbitmap); |
292 } | 284 } |
293 | 285 |
294 } // namespace cc | 286 } // namespace cc |
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