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1 /* | 1 /* |
2 * Copyright (C) 2004, 2006, 2009, 2010 Apple Inc. All rights reserved. | 2 * Copyright (C) 2004, 2006, 2009, 2010 Apple Inc. All rights reserved. |
3 * Copyright (C) 2007 Alp Toker <alp@atoker.com> | 3 * Copyright (C) 2007 Alp Toker <alp@atoker.com> |
4 * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved. | 4 * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved. |
5 * | 5 * |
6 * Redistribution and use in source and binary forms, with or without | 6 * Redistribution and use in source and binary forms, with or without |
7 * modification, are permitted provided that the following conditions | 7 * modification, are permitted provided that the following conditions |
8 * are met: | 8 * are met: |
9 * 1. Redistributions of source code must retain the above copyright | 9 * 1. Redistributions of source code must retain the above copyright |
10 * notice, this list of conditions and the following disclaimer. | 10 * notice, this list of conditions and the following disclaimer. |
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50 | 50 |
51 #define CanvasDefaultInterpolationQuality InterpolationLow | 51 #define CanvasDefaultInterpolationQuality InterpolationLow |
52 | 52 |
53 namespace blink { | 53 namespace blink { |
54 | 54 |
55 class AffineTransform; | 55 class AffineTransform; |
56 class CanvasContextCreationAttributes; | 56 class CanvasContextCreationAttributes; |
57 class CanvasRenderingContext; | 57 class CanvasRenderingContext; |
58 class CanvasRenderingContextFactory; | 58 class CanvasRenderingContextFactory; |
59 class GraphicsContext; | 59 class GraphicsContext; |
| 60 class HitTestCanvasResult; |
60 class HTMLCanvasElement; | 61 class HTMLCanvasElement; |
61 class Image; | 62 class Image; |
62 class ImageBitmapOptions; | 63 class ImageBitmapOptions; |
63 class ImageBuffer; | 64 class ImageBuffer; |
64 class ImageBufferSurface; | 65 class ImageBufferSurface; |
65 class ImageData; | 66 class ImageData; |
66 class IntSize; | 67 class IntSize; |
67 | 68 |
68 class CanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingContextOrI
mageBitmapRenderingContext; | 69 class CanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingContextOrI
mageBitmapRenderingContext; |
69 typedef CanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingContextO
rImageBitmapRenderingContext RenderingContext; | 70 typedef CanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingContextO
rImageBitmapRenderingContext RenderingContext; |
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193 | 194 |
194 static void registerRenderingContextFactory(std::unique_ptr<CanvasRenderingC
ontextFactory>); | 195 static void registerRenderingContextFactory(std::unique_ptr<CanvasRenderingC
ontextFactory>); |
195 void updateExternallyAllocatedMemory() const; | 196 void updateExternallyAllocatedMemory() const; |
196 | 197 |
197 void styleDidChange(const ComputedStyle* oldStyle, const ComputedStyle& newS
tyle); | 198 void styleDidChange(const ComputedStyle* oldStyle, const ComputedStyle& newS
tyle); |
198 | 199 |
199 void notifyListenersCanvasChanged(); | 200 void notifyListenersCanvasChanged(); |
200 | 201 |
201 // For Canvas HitRegions | 202 // For Canvas HitRegions |
202 bool isSupportedInteractiveCanvasFallback(const Element&); | 203 bool isSupportedInteractiveCanvasFallback(const Element&); |
203 std::pair<Element*, String> getControlAndIdIfHitRegionExists(const LayoutPoi
nt&); | 204 HitTestCanvasResult* getControlAndIdIfHitRegionExists(const LayoutPoint&); |
204 String getIdFromControl(const Element*); | 205 String getIdFromControl(const Element*); |
205 | 206 |
206 // For OffscreenCanvas that controls this html canvas element | 207 // For OffscreenCanvas that controls this html canvas element |
207 CanvasSurfaceLayerBridge* surfaceLayerBridge() const { return m_surfaceLayer
Bridge.get(); } | 208 CanvasSurfaceLayerBridge* surfaceLayerBridge() const { return m_surfaceLayer
Bridge.get(); } |
208 bool createSurfaceLayer(); | 209 bool createSurfaceLayer(); |
209 | 210 |
210 void detachContext() { m_context = nullptr; } | 211 void detachContext() { m_context = nullptr; } |
211 | 212 |
212 protected: | 213 protected: |
213 void didMoveToNewDocument(Document& oldDocument) override; | 214 void didMoveToNewDocument(Document& oldDocument) override; |
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263 // Used for OffscreenCanvas that controls this HTML canvas element | 264 // Used for OffscreenCanvas that controls this HTML canvas element |
264 std::unique_ptr<CanvasSurfaceLayerBridge> m_surfaceLayerBridge; | 265 std::unique_ptr<CanvasSurfaceLayerBridge> m_surfaceLayerBridge; |
265 | 266 |
266 int m_numFramesSinceLastRenderingModeSwitch; | 267 int m_numFramesSinceLastRenderingModeSwitch; |
267 bool m_pendingRenderingModeSwitch; | 268 bool m_pendingRenderingModeSwitch; |
268 }; | 269 }; |
269 | 270 |
270 } // namespace blink | 271 } // namespace blink |
271 | 272 |
272 #endif // HTMLCanvasElement_h | 273 #endif // HTMLCanvasElement_h |
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