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1 /* | 1 /* |
2 * Copyright (C) 2009 Apple Inc. All rights reserved. | 2 * Copyright (C) 2009 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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71 | 71 |
72 class CORE_EXPORT PaintLayerCompositor final : public GraphicsLayerClient { | 72 class CORE_EXPORT PaintLayerCompositor final : public GraphicsLayerClient { |
73 USING_FAST_MALLOC(PaintLayerCompositor); | 73 USING_FAST_MALLOC(PaintLayerCompositor); |
74 | 74 |
75 public: | 75 public: |
76 explicit PaintLayerCompositor(LayoutView&); | 76 explicit PaintLayerCompositor(LayoutView&); |
77 ~PaintLayerCompositor() override; | 77 ~PaintLayerCompositor() override; |
78 | 78 |
79 void updateIfNeededRecursive(); | 79 void updateIfNeededRecursive(); |
80 | 80 |
81 // Return true if this LayoutView is in "compositing mode" (i.e. has one or mo re | 81 // Return true if this LayoutView is in "compositing mode" (i.e. has one or |
82 // composited Layers) | 82 // more composited Layers) |
83 bool inCompositingMode() const; | 83 bool inCompositingMode() const; |
84 // FIXME: Replace all callers with inCompositingMode and remove this function. | 84 // FIXME: Replace all callers with inCompositingMode and remove this function. |
85 bool staleInCompositingMode() const; | 85 bool staleInCompositingMode() const; |
86 // This will make a compositing layer at the root automatically, and hook up t o | 86 // This will make a compositing layer at the root automatically, and hook up |
87 // the native view/window system. | 87 // to the native view/window system. |
88 void setCompositingModeEnabled(bool); | 88 void setCompositingModeEnabled(bool); |
89 | 89 |
90 // Returns true if the accelerated compositing is enabled | 90 // Returns true if the accelerated compositing is enabled |
91 bool hasAcceleratedCompositing() const { return m_hasAcceleratedCompositing; } | 91 bool hasAcceleratedCompositing() const { return m_hasAcceleratedCompositing; } |
92 | 92 |
93 bool preferCompositingToLCDTextEnabled() const; | 93 bool preferCompositingToLCDTextEnabled() const; |
94 | 94 |
95 bool rootShouldAlwaysComposite() const; | 95 bool rootShouldAlwaysComposite() const; |
96 | 96 |
97 // Copy the accelerated compositing related flags from Settings | 97 // Copy the accelerated compositing related flags from Settings |
98 void updateAcceleratedCompositingSettings(); | 98 void updateAcceleratedCompositingSettings(); |
99 | 99 |
100 // Used to indicate that a compositing update will be needed for the next fram e that gets drawn. | 100 // Used to indicate that a compositing update will be needed for the next |
101 // frame that gets drawn. | |
101 void setNeedsCompositingUpdate(CompositingUpdateType); | 102 void setNeedsCompositingUpdate(CompositingUpdateType); |
102 | 103 |
103 void didLayout(); | 104 void didLayout(); |
104 | 105 |
105 // Whether layer's compositedLayerMapping needs a GraphicsLayer to clip z-orde r children of the given Layer. | 106 // Whether layer's compositedLayerMapping needs a GraphicsLayer to clip |
107 // z-order children of the given Layer. | |
106 bool clipsCompositingDescendants(const PaintLayer*) const; | 108 bool clipsCompositingDescendants(const PaintLayer*) const; |
107 | 109 |
108 // Whether the given layer needs an extra 'contents' layer. | 110 // Whether the given layer needs an extra 'contents' layer. |
109 bool needsContentsCompositingLayer(const PaintLayer*) const; | 111 bool needsContentsCompositingLayer(const PaintLayer*) const; |
110 | 112 |
111 bool supportsFixedRootBackgroundCompositing() const; | 113 bool supportsFixedRootBackgroundCompositing() const; |
112 bool needsFixedRootBackgroundLayer(const PaintLayer*) const; | 114 bool needsFixedRootBackgroundLayer(const PaintLayer*) const; |
113 GraphicsLayer* fixedRootBackgroundLayer() const; | 115 GraphicsLayer* fixedRootBackgroundLayer() const; |
114 void setNeedsUpdateFixedBackground() { m_needsUpdateFixedBackground = true; } | 116 void setNeedsUpdateFixedBackground() { m_needsUpdateFixedBackground = true; } |
115 | 117 |
116 // Issue paint invalidations of the appropriate layers when the given Layer st arts or stops being composited. | 118 // Issue paint invalidations of the appropriate layers when the given Layer |
119 // starts or stops being composited. | |
117 void paintInvalidationOnCompositingChange(PaintLayer*); | 120 void paintInvalidationOnCompositingChange(PaintLayer*); |
118 | 121 |
119 void fullyInvalidatePaint(); | 122 void fullyInvalidatePaint(); |
120 | 123 |
121 PaintLayer* rootLayer() const; | 124 PaintLayer* rootLayer() const; |
122 GraphicsLayer* rootGraphicsLayer() const; | 125 GraphicsLayer* rootGraphicsLayer() const; |
123 GraphicsLayer* frameScrollLayer() const; | 126 GraphicsLayer* frameScrollLayer() const; |
124 GraphicsLayer* scrollLayer() const; | 127 GraphicsLayer* scrollLayer() const; |
125 GraphicsLayer* containerLayer() const; | 128 GraphicsLayer* containerLayer() const; |
126 GraphicsLayer* rootContentLayer() const; | 129 GraphicsLayer* rootContentLayer() const; |
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142 // expand/shrink its clipping layer in response to top controls and have | 145 // expand/shrink its clipping layer in response to top controls and have |
143 // the result be visible. | 146 // the result be visible. |
144 void updateClippingOnCompositorLayers(); | 147 void updateClippingOnCompositorLayers(); |
145 | 148 |
146 void setIsInWindow(bool); | 149 void setIsInWindow(bool); |
147 | 150 |
148 static PaintLayerCompositor* frameContentsCompositor(LayoutPart*); | 151 static PaintLayerCompositor* frameContentsCompositor(LayoutPart*); |
149 // Return true if the layers changed. | 152 // Return true if the layers changed. |
150 static bool attachFrameContentLayersToIframeLayer(LayoutPart*); | 153 static bool attachFrameContentLayersToIframeLayer(LayoutPart*); |
151 | 154 |
152 // Update the geometry of the layers used for clipping and scrolling in frames . | 155 // Update the geometry of the layers used for clipping and scrolling in |
156 // frames. | |
153 void frameViewDidChangeLocation(const IntPoint& contentsOffset); | 157 void frameViewDidChangeLocation(const IntPoint& contentsOffset); |
154 void frameViewDidChangeSize(); | 158 void frameViewDidChangeSize(); |
155 void frameViewDidScroll(); | 159 void frameViewDidScroll(); |
156 void frameViewScrollbarsExistenceDidChange(); | 160 void frameViewScrollbarsExistenceDidChange(); |
157 void rootFixedBackgroundsChanged(); | 161 void rootFixedBackgroundsChanged(); |
158 | 162 |
159 bool scrollingLayerDidChange(PaintLayer*); | 163 bool scrollingLayerDidChange(PaintLayer*); |
160 | 164 |
161 std::unique_ptr<JSONObject> layerTreeAsJSON(LayerTreeFlags) const; | 165 std::unique_ptr<JSONObject> layerTreeAsJSON(LayerTreeFlags) const; |
162 | 166 |
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180 } | 184 } |
181 void setNeedsUpdateDescendantDependentFlags() { | 185 void setNeedsUpdateDescendantDependentFlags() { |
182 m_needsUpdateDescendantDependentFlags = true; | 186 m_needsUpdateDescendantDependentFlags = true; |
183 } | 187 } |
184 | 188 |
185 void updatePotentialCompositingReasonsFromStyle(PaintLayer*); | 189 void updatePotentialCompositingReasonsFromStyle(PaintLayer*); |
186 | 190 |
187 // Whether the layer could ever be composited. | 191 // Whether the layer could ever be composited. |
188 bool canBeComposited(const PaintLayer*) const; | 192 bool canBeComposited(const PaintLayer*) const; |
189 | 193 |
190 // FIXME: Move allocateOrClearCompositedLayerMapping to CompositingLayerAssign er once we've fixed | 194 // FIXME: Move allocateOrClearCompositedLayerMapping to |
195 // CompositingLayerAssigner once we've fixed | |
eae
2016/10/05 19:53:01
Rewrap at 80 col.
Nico
2016/10/05 19:58:15
Whoops, thanks! Done.
| |
191 // the compositing chicken/egg issues. | 196 // the compositing chicken/egg issues. |
192 bool allocateOrClearCompositedLayerMapping( | 197 bool allocateOrClearCompositedLayerMapping( |
193 PaintLayer*, | 198 PaintLayer*, |
194 CompositingStateTransitionType compositedLayerUpdate); | 199 CompositingStateTransitionType compositedLayerUpdate); |
195 | 200 |
196 void updateDirectCompositingReasons(PaintLayer*); | 201 void updateDirectCompositingReasons(PaintLayer*); |
197 | 202 |
198 bool inOverlayFullscreenVideo() const { return m_inOverlayFullscreenVideo; } | 203 bool inOverlayFullscreenVideo() const { return m_inOverlayFullscreenVideo; } |
199 | 204 |
200 private: | 205 private: |
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234 ScrollingCoordinator* scrollingCoordinator() const; | 239 ScrollingCoordinator* scrollingCoordinator() const; |
235 | 240 |
236 void enableCompositingModeIfNeeded(); | 241 void enableCompositingModeIfNeeded(); |
237 | 242 |
238 bool requiresHorizontalScrollbarLayer() const; | 243 bool requiresHorizontalScrollbarLayer() const; |
239 bool requiresVerticalScrollbarLayer() const; | 244 bool requiresVerticalScrollbarLayer() const; |
240 bool requiresScrollCornerLayer() const; | 245 bool requiresScrollCornerLayer() const; |
241 | 246 |
242 void applyOverlayFullscreenVideoAdjustmentIfNeeded(); | 247 void applyOverlayFullscreenVideoAdjustmentIfNeeded(); |
243 | 248 |
244 // Checks the given graphics layer against the compositor's horizontal and ver tical scrollbar | 249 // Checks the given graphics layer against the compositor's horizontal and |
245 // graphics layers, returning the associated Scrollbar instance if any, else n ullptr. | 250 // vertical scrollbar graphics layers, returning the associated Scrollbar |
251 // instance if any, else nullptr. | |
246 Scrollbar* graphicsLayerToScrollbar(const GraphicsLayer*) const; | 252 Scrollbar* graphicsLayerToScrollbar(const GraphicsLayer*) const; |
247 | 253 |
248 LayoutView& m_layoutView; | 254 LayoutView& m_layoutView; |
249 std::unique_ptr<GraphicsLayer> m_rootContentLayer; | 255 std::unique_ptr<GraphicsLayer> m_rootContentLayer; |
250 | 256 |
251 CompositingReasonFinder m_compositingReasonFinder; | 257 CompositingReasonFinder m_compositingReasonFinder; |
252 | 258 |
253 CompositingUpdateType m_pendingUpdateType; | 259 CompositingUpdateType m_pendingUpdateType; |
254 | 260 |
255 bool m_hasAcceleratedCompositing; | 261 bool m_hasAcceleratedCompositing; |
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279 | 285 |
280 // Layers for overflow controls | 286 // Layers for overflow controls |
281 std::unique_ptr<GraphicsLayer> m_layerForHorizontalScrollbar; | 287 std::unique_ptr<GraphicsLayer> m_layerForHorizontalScrollbar; |
282 std::unique_ptr<GraphicsLayer> m_layerForVerticalScrollbar; | 288 std::unique_ptr<GraphicsLayer> m_layerForVerticalScrollbar; |
283 std::unique_ptr<GraphicsLayer> m_layerForScrollCorner; | 289 std::unique_ptr<GraphicsLayer> m_layerForScrollCorner; |
284 }; | 290 }; |
285 | 291 |
286 } // namespace blink | 292 } // namespace blink |
287 | 293 |
288 #endif // PaintLayerCompositor_h | 294 #endif // PaintLayerCompositor_h |
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