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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 "base/auto_reset.h" | 7 #include "base/auto_reset.h" |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/debug/trace_event.h" | 9 #include "base/debug/trace_event.h" |
10 #include "cc/layers/painted_scrollbar_layer_impl.h" | 10 #include "cc/layers/painted_scrollbar_layer_impl.h" |
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21 namespace cc { | 21 namespace cc { |
22 | 22 |
23 scoped_ptr<LayerImpl> PaintedScrollbarLayer::CreateLayerImpl( | 23 scoped_ptr<LayerImpl> PaintedScrollbarLayer::CreateLayerImpl( |
24 LayerTreeImpl* tree_impl) { | 24 LayerTreeImpl* tree_impl) { |
25 return PaintedScrollbarLayerImpl::Create( | 25 return PaintedScrollbarLayerImpl::Create( |
26 tree_impl, id(), scrollbar_->Orientation()).PassAs<LayerImpl>(); | 26 tree_impl, id(), scrollbar_->Orientation()).PassAs<LayerImpl>(); |
27 } | 27 } |
28 | 28 |
29 scoped_refptr<PaintedScrollbarLayer> PaintedScrollbarLayer::Create( | 29 scoped_refptr<PaintedScrollbarLayer> PaintedScrollbarLayer::Create( |
30 scoped_ptr<Scrollbar> scrollbar, | 30 scoped_ptr<Scrollbar> scrollbar, |
31 Layer* scroll_layer) { | 31 int scroll_layer_id) { |
32 return make_scoped_refptr( | 32 return make_scoped_refptr( |
33 new PaintedScrollbarLayer(scrollbar.Pass(), scroll_layer)); | 33 new PaintedScrollbarLayer(scrollbar.Pass(), scroll_layer_id)); |
34 } | 34 } |
35 | 35 |
36 PaintedScrollbarLayer::PaintedScrollbarLayer( | 36 PaintedScrollbarLayer::PaintedScrollbarLayer( |
37 scoped_ptr<Scrollbar> scrollbar, | 37 scoped_ptr<Scrollbar> scrollbar, |
38 Layer* scroll_layer) | 38 int scroll_layer_id) |
39 : scrollbar_(scrollbar.Pass()), | 39 : scrollbar_(scrollbar.Pass()), |
40 scroll_layer_(scroll_layer), | 40 scroll_layer_id_(scroll_layer_id), |
41 clip_layer_(NULL), | |
42 thumb_thickness_(scrollbar_->ThumbThickness()), | 41 thumb_thickness_(scrollbar_->ThumbThickness()), |
43 thumb_length_(scrollbar_->ThumbLength()), | 42 thumb_length_(scrollbar_->ThumbLength()), |
44 is_overlay_(scrollbar_->IsOverlay()), | 43 is_overlay_(scrollbar_->IsOverlay()), |
45 has_thumb_(scrollbar_->HasThumb()) { | 44 has_thumb_(scrollbar_->HasThumb()) { |
46 if (!scrollbar_->IsOverlay()) | 45 if (!scrollbar_->IsOverlay()) |
47 SetShouldScrollOnMainThread(true); | 46 SetShouldScrollOnMainThread(true); |
48 } | 47 } |
49 | 48 |
50 PaintedScrollbarLayer::~PaintedScrollbarLayer() {} | 49 PaintedScrollbarLayer::~PaintedScrollbarLayer() {} |
51 | 50 |
52 int PaintedScrollbarLayer::ScrollLayerId() const { | 51 int PaintedScrollbarLayer::ScrollLayerId() const { |
53 return scroll_layer_->id(); | 52 return scroll_layer_id_; |
54 } | 53 } |
55 | 54 |
56 void PaintedScrollbarLayer::SetScrollLayer(scoped_refptr<Layer> layer) { | 55 void PaintedScrollbarLayer::SetScrollLayerId(int id) { |
57 if (layer == scroll_layer_) | 56 if (id == scroll_layer_id_) |
58 return; | 57 return; |
59 | 58 |
60 scroll_layer_ = layer; | 59 scroll_layer_id_ = id; |
61 SetNeedsFullTreeSync(); | 60 SetNeedsFullTreeSync(); |
62 } | 61 } |
63 | 62 |
64 void PaintedScrollbarLayer::SetClipLayer(scoped_refptr<Layer> layer) { | |
65 if (layer == clip_layer_) | |
66 return; | |
67 | |
68 clip_layer_ = layer; | |
69 SetNeedsFullTreeSync(); | |
70 } | |
71 | |
72 bool PaintedScrollbarLayer::OpacityCanAnimateOnImplThread() const { | 63 bool PaintedScrollbarLayer::OpacityCanAnimateOnImplThread() const { |
73 return scrollbar_->IsOverlay(); | 64 return scrollbar_->IsOverlay(); |
74 } | 65 } |
75 | 66 |
76 ScrollbarOrientation PaintedScrollbarLayer::orientation() const { | 67 ScrollbarOrientation PaintedScrollbarLayer::orientation() const { |
77 return scrollbar_->Orientation(); | 68 return scrollbar_->Orientation(); |
78 } | 69 } |
79 | 70 |
80 int PaintedScrollbarLayer::MaxTextureSize() { | 71 int PaintedScrollbarLayer::MaxTextureSize() { |
81 DCHECK(layer_tree_host()); | 72 DCHECK(layer_tree_host()); |
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111 page_scale_factor, | 102 page_scale_factor, |
112 animating_transform_to_screen, | 103 animating_transform_to_screen, |
113 contents_scale_x, | 104 contents_scale_x, |
114 contents_scale_y, | 105 contents_scale_y, |
115 content_bounds); | 106 content_bounds); |
116 } | 107 } |
117 | 108 |
118 void PaintedScrollbarLayer::PushPropertiesTo(LayerImpl* layer) { | 109 void PaintedScrollbarLayer::PushPropertiesTo(LayerImpl* layer) { |
119 ContentsScalingLayer::PushPropertiesTo(layer); | 110 ContentsScalingLayer::PushPropertiesTo(layer); |
120 | 111 |
121 PushScrollClipPropertiesTo(layer); | |
122 | |
123 PaintedScrollbarLayerImpl* scrollbar_layer = | 112 PaintedScrollbarLayerImpl* scrollbar_layer = |
124 static_cast<PaintedScrollbarLayerImpl*>(layer); | 113 static_cast<PaintedScrollbarLayerImpl*>(layer); |
125 | 114 |
126 scrollbar_layer->SetThumbThickness(thumb_thickness_); | 115 scrollbar_layer->SetThumbThickness(thumb_thickness_); |
127 scrollbar_layer->SetThumbLength(thumb_length_); | 116 scrollbar_layer->SetThumbLength(thumb_length_); |
128 if (orientation() == HORIZONTAL) { | 117 if (orientation() == HORIZONTAL) { |
129 scrollbar_layer->SetTrackStart( | 118 scrollbar_layer->SetTrackStart( |
130 track_rect_.x() - location_.x()); | 119 track_rect_.x() - location_.x()); |
131 scrollbar_layer->SetTrackLength(track_rect_.width()); | 120 scrollbar_layer->SetTrackLength(track_rect_.width()); |
132 } else { | 121 } else { |
133 scrollbar_layer->SetTrackStart( | 122 scrollbar_layer->SetTrackStart( |
134 track_rect_.y() - location_.y()); | 123 track_rect_.y() - location_.y()); |
135 scrollbar_layer->SetTrackLength(track_rect_.height()); | 124 scrollbar_layer->SetTrackLength(track_rect_.height()); |
136 } | 125 } |
137 | 126 |
138 if (track_resource_.get()) | 127 if (track_resource_.get()) |
139 scrollbar_layer->set_track_ui_resource_id(track_resource_->id()); | 128 scrollbar_layer->set_track_ui_resource_id(track_resource_->id()); |
140 if (thumb_resource_.get()) | 129 if (thumb_resource_.get()) |
141 scrollbar_layer->set_thumb_ui_resource_id(thumb_resource_->id()); | 130 scrollbar_layer->set_thumb_ui_resource_id(thumb_resource_->id()); |
142 | 131 |
143 scrollbar_layer->set_is_overlay_scrollbar(is_overlay_); | 132 scrollbar_layer->set_is_overlay_scrollbar(is_overlay_); |
144 } | 133 } |
145 | 134 |
146 ScrollbarLayerInterface* PaintedScrollbarLayer::ToScrollbarLayer() { | 135 ScrollbarLayerInterface* PaintedScrollbarLayer::ToScrollbarLayer() { |
147 return this; | 136 return this; |
148 } | 137 } |
149 | 138 |
150 void PaintedScrollbarLayer::PushScrollClipPropertiesTo(LayerImpl* layer) { | |
151 PaintedScrollbarLayerImpl* scrollbar_layer = | |
152 static_cast<PaintedScrollbarLayerImpl*>(layer); | |
153 | |
154 scrollbar_layer->SetScrollLayerById(scroll_layer_ ? scroll_layer_->id() | |
155 : Layer::INVALID_ID); | |
156 scrollbar_layer->SetClipLayerById(clip_layer_ ? clip_layer_->id() | |
157 : Layer::INVALID_ID); | |
158 } | |
159 | |
160 void PaintedScrollbarLayer::SetLayerTreeHost(LayerTreeHost* host) { | 139 void PaintedScrollbarLayer::SetLayerTreeHost(LayerTreeHost* host) { |
161 // When the LTH is set to null or has changed, then this layer should remove | 140 // When the LTH is set to null or has changed, then this layer should remove |
162 // all of its associated resources. | 141 // all of its associated resources. |
163 if (!host || host != layer_tree_host()) { | 142 if (!host || host != layer_tree_host()) { |
164 track_resource_.reset(); | 143 track_resource_.reset(); |
165 thumb_resource_.reset(); | 144 thumb_resource_.reset(); |
166 } | 145 } |
167 | 146 |
168 ContentsScalingLayer::SetLayerTreeHost(host); | 147 ContentsScalingLayer::SetLayerTreeHost(host); |
169 } | 148 } |
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262 | 241 |
263 scrollbar_->PaintPart(&skcanvas, part, layer_rect); | 242 scrollbar_->PaintPart(&skcanvas, part, layer_rect); |
264 // Make sure that the pixels are no longer mutable to unavoid unnecessary | 243 // Make sure that the pixels are no longer mutable to unavoid unnecessary |
265 // allocation and copying. | 244 // allocation and copying. |
266 skbitmap.setImmutable(); | 245 skbitmap.setImmutable(); |
267 | 246 |
268 return UIResourceBitmap(skbitmap); | 247 return UIResourceBitmap(skbitmap); |
269 } | 248 } |
270 | 249 |
271 } // namespace cc | 250 } // namespace cc |
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