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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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116 GraphicsLayer* fixedRootBackgroundLayer() const; | 116 GraphicsLayer* fixedRootBackgroundLayer() const; |
117 void setNeedsUpdateFixedBackground() { m_needsUpdateFixedBackground = true; } | 117 void setNeedsUpdateFixedBackground() { m_needsUpdateFixedBackground = true; } |
118 | 118 |
119 // Issue paint invalidations of the appropriate layers when the given Layer | 119 // Issue paint invalidations of the appropriate layers when the given Layer |
120 // starts or stops being composited. | 120 // starts or stops being composited. |
121 void paintInvalidationOnCompositingChange(PaintLayer*); | 121 void paintInvalidationOnCompositingChange(PaintLayer*); |
122 | 122 |
123 void fullyInvalidatePaint(); | 123 void fullyInvalidatePaint(); |
124 | 124 |
125 PaintLayer* rootLayer() const; | 125 PaintLayer* rootLayer() const; |
| 126 |
| 127 GraphicsLayer* containerLayer() const { return m_containerLayer.get(); } |
| 128 GraphicsLayer* frameScrollLayer() const { return m_scrollLayer.get(); } |
| 129 GraphicsLayer* rootContentLayer() const { return m_rootContentLayer.get(); } |
| 130 GraphicsLayer* layerForHorizontalScrollbar() const { |
| 131 return m_layerForHorizontalScrollbar.get(); |
| 132 } |
| 133 GraphicsLayer* layerForVerticalScrollbar() const { |
| 134 return m_layerForVerticalScrollbar.get(); |
| 135 } |
| 136 GraphicsLayer* layerForScrollCorner() const { |
| 137 return m_layerForScrollCorner.get(); |
| 138 } |
| 139 |
| 140 // In root layer scrolling mode, returns the LayoutView's main GraphicsLayer. |
| 141 // In non-RLS mode, returns the outermost PaintLayerCompositor layer. |
126 GraphicsLayer* rootGraphicsLayer() const; | 142 GraphicsLayer* rootGraphicsLayer() const; |
127 GraphicsLayer* frameScrollLayer() const; | 143 |
| 144 // In root layer scrolling mode, this is the LayoutView's scroll layer. |
| 145 // In non-RLS mode, this is the same as frameScrollLayer(). |
128 GraphicsLayer* scrollLayer() const; | 146 GraphicsLayer* scrollLayer() const; |
129 GraphicsLayer* containerLayer() const; | |
130 GraphicsLayer* rootContentLayer() const; | |
131 | 147 |
132 void updateRootLayerPosition(); | 148 void updateRootLayerPosition(); |
133 | 149 |
134 // If the root scroller isn't the root layer then the PaintLayerCompositor | 150 // If the root scroller isn't the root layer then the PaintLayerCompositor |
135 // must disable clipping on its layers so that the root scroller can | 151 // must disable clipping on its layers so that the root scroller can |
136 // expand/shrink its clipping layer in response to browser controls and have | 152 // expand/shrink its clipping layer in response to browser controls and have |
137 // the result be visible. | 153 // the result be visible. |
138 void updateClippingOnCompositorLayers(); | 154 void updateClippingOnCompositorLayers(); |
139 | 155 |
140 void setIsInWindow(bool); | 156 void setIsInWindow(bool); |
141 | 157 |
142 static PaintLayerCompositor* frameContentsCompositor(LayoutPart&); | 158 static PaintLayerCompositor* frameContentsCompositor(LayoutPart&); |
143 // Return true if the layers changed. | 159 // Return true if the layers changed. |
144 static bool attachFrameContentLayersToIframeLayer(LayoutPart&); | 160 static bool attachFrameContentLayersToIframeLayer(LayoutPart&); |
145 | 161 |
146 // Update the geometry of the layers used for clipping and scrolling in | 162 // Update the geometry of the layers used for clipping and scrolling in |
147 // frames. | 163 // frames. |
148 void frameViewDidChangeLocation(const IntPoint& contentsOffset); | 164 void frameViewDidChangeLocation(const IntPoint& contentsOffset); |
149 void frameViewDidChangeSize(); | 165 void frameViewDidChangeSize(); |
150 void frameViewDidScroll(); | 166 void frameViewDidScroll(); |
151 void frameViewScrollbarsExistenceDidChange(); | 167 void frameViewScrollbarsExistenceDidChange(); |
152 void rootFixedBackgroundsChanged(); | 168 void rootFixedBackgroundsChanged(); |
153 | 169 |
154 bool scrollingLayerDidChange(PaintLayer*); | 170 bool scrollingLayerDidChange(PaintLayer*); |
155 | 171 |
156 std::unique_ptr<JSONObject> layerTreeAsJSON(LayerTreeFlags) const; | 172 std::unique_ptr<JSONObject> layerTreeAsJSON(LayerTreeFlags) const; |
157 | 173 |
158 GraphicsLayer* layerForHorizontalScrollbar() const { | |
159 return m_layerForHorizontalScrollbar.get(); | |
160 } | |
161 GraphicsLayer* layerForVerticalScrollbar() const { | |
162 return m_layerForVerticalScrollbar.get(); | |
163 } | |
164 GraphicsLayer* layerForScrollCorner() const { | |
165 return m_layerForScrollCorner.get(); | |
166 } | |
167 | |
168 void setTracksRasterInvalidations(bool); | 174 void setTracksRasterInvalidations(bool); |
169 | 175 |
170 String debugName(const GraphicsLayer*) const override; | 176 String debugName(const GraphicsLayer*) const override; |
171 DocumentLifecycle& lifecycle() const; | 177 DocumentLifecycle& lifecycle() const; |
172 | 178 |
173 void updatePotentialCompositingReasonsFromStyle(PaintLayer*); | 179 void updatePotentialCompositingReasonsFromStyle(PaintLayer*); |
174 | 180 |
175 // Whether the layer could ever be composited. | 181 // Whether the layer could ever be composited. |
176 bool canBeComposited(const PaintLayer*) const; | 182 bool canBeComposited(const PaintLayer*) const; |
177 | 183 |
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230 | 236 |
231 void updateContainerSizes(); | 237 void updateContainerSizes(); |
232 | 238 |
233 // Checks the given graphics layer against the compositor's horizontal and | 239 // Checks the given graphics layer against the compositor's horizontal and |
234 // vertical scrollbar graphics layers, returning the associated Scrollbar | 240 // vertical scrollbar graphics layers, returning the associated Scrollbar |
235 // instance if any, else nullptr. | 241 // instance if any, else nullptr. |
236 Scrollbar* graphicsLayerToScrollbar(const GraphicsLayer*) const; | 242 Scrollbar* graphicsLayerToScrollbar(const GraphicsLayer*) const; |
237 | 243 |
238 bool isMainFrame() const; | 244 bool isMainFrame() const; |
239 VisualViewport& visualViewport() const; | 245 VisualViewport& visualViewport() const; |
| 246 GraphicsLayer* parentForContentLayers() const; |
240 | 247 |
241 LayoutView& m_layoutView; | 248 LayoutView& m_layoutView; |
242 std::unique_ptr<GraphicsLayer> m_rootContentLayer; | |
243 | 249 |
244 CompositingReasonFinder m_compositingReasonFinder; | 250 CompositingReasonFinder m_compositingReasonFinder; |
245 | 251 |
246 CompositingUpdateType m_pendingUpdateType; | 252 CompositingUpdateType m_pendingUpdateType; |
247 | 253 |
248 bool m_hasAcceleratedCompositing; | 254 bool m_hasAcceleratedCompositing; |
249 bool m_compositing; | 255 bool m_compositing; |
250 | 256 |
251 // The root layer doesn't composite if it's a non-scrollable frame. | 257 // The root layer doesn't composite if it's a non-scrollable frame. |
252 // So, after a layout we set this dirty bit to know that we need | 258 // So, after a layout we set this dirty bit to know that we need |
253 // to recompute whether the root layer should composite even if | 259 // to recompute whether the root layer should composite even if |
254 // none of its descendants composite. | 260 // none of its descendants composite. |
255 // FIXME: Get rid of all the callers of setCompositingModeEnabled | 261 // FIXME: Get rid of all the callers of setCompositingModeEnabled |
256 // except the one in updateIfNeeded, then rename this to | 262 // except the one in updateIfNeeded, then rename this to |
257 // m_compositingDirty. | 263 // m_compositingDirty. |
258 bool m_rootShouldAlwaysCompositeDirty; | 264 bool m_rootShouldAlwaysCompositeDirty; |
259 bool m_needsUpdateFixedBackground; | 265 bool m_needsUpdateFixedBackground; |
260 bool m_isTrackingRasterInvalidations; // Used for testing. | 266 bool m_isTrackingRasterInvalidations; // Used for testing. |
261 bool m_inOverlayFullscreenVideo; | 267 bool m_inOverlayFullscreenVideo; |
262 | 268 |
263 enum RootLayerAttachment { | 269 enum RootLayerAttachment { |
264 RootLayerUnattached, | 270 RootLayerUnattached, |
265 RootLayerPendingAttachViaChromeClient, | 271 RootLayerPendingAttachViaChromeClient, |
266 RootLayerAttachedViaChromeClient, | 272 RootLayerAttachedViaChromeClient, |
267 RootLayerAttachedViaEnclosingFrame | 273 RootLayerAttachedViaEnclosingFrame |
268 }; | 274 }; |
269 RootLayerAttachment m_rootLayerAttachment; | 275 RootLayerAttachment m_rootLayerAttachment; |
270 | 276 |
271 // Enclosing container layer, which clips for iframe content | 277 // Outermost layer, holds overflow controls and the container layer |
| 278 std::unique_ptr<GraphicsLayer> m_overflowControlsHostLayer; |
| 279 |
| 280 // Clips for iframe content |
272 std::unique_ptr<GraphicsLayer> m_containerLayer; | 281 std::unique_ptr<GraphicsLayer> m_containerLayer; |
| 282 |
| 283 // Scrolls with the FrameView |
273 std::unique_ptr<GraphicsLayer> m_scrollLayer; | 284 std::unique_ptr<GraphicsLayer> m_scrollLayer; |
274 | 285 |
275 // Enclosing layer for overflow controls and the clipping layer | 286 // Innermost layer, parent of LayoutView main GraphicsLayer |
276 std::unique_ptr<GraphicsLayer> m_overflowControlsHostLayer; | 287 std::unique_ptr<GraphicsLayer> m_rootContentLayer; |
277 | 288 |
278 // Layers for overflow controls | 289 // Layers for overflow controls |
279 std::unique_ptr<GraphicsLayer> m_layerForHorizontalScrollbar; | 290 std::unique_ptr<GraphicsLayer> m_layerForHorizontalScrollbar; |
280 std::unique_ptr<GraphicsLayer> m_layerForVerticalScrollbar; | 291 std::unique_ptr<GraphicsLayer> m_layerForVerticalScrollbar; |
281 std::unique_ptr<GraphicsLayer> m_layerForScrollCorner; | 292 std::unique_ptr<GraphicsLayer> m_layerForScrollCorner; |
282 }; | 293 }; |
283 | 294 |
284 } // namespace blink | 295 } // namespace blink |
285 | 296 |
286 #endif // PaintLayerCompositor_h | 297 #endif // PaintLayerCompositor_h |
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