third_party/WebKit/Source/core/html/canvas/CanvasImageSource.h - Issue 2294383002: Make OffscreenCanvas a member of CanvasImageSource

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Issue 2294383002: Make OffscreenCanvas a member of CanvasImageSource (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: rebase Created 4 years, 3 months ago

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1 /*	1 /*

2 * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc. All rights reserved.	2 * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc. All rights reserved.

3 * Copyright (C) 2007 Alp Toker <alp@atoker.com>	3 * Copyright (C) 2007 Alp Toker <alp@atoker.com>

4 *	4 *

5 * Redistribution and use in source and binary forms, with or without	5 * Redistribution and use in source and binary forms, with or without

6 * modification, are permitted provided that the following conditions	6 * modification, are permitted provided that the following conditions

7 * are met:	7 * are met:

8 * 1. Redistributions of source code must retain the above copyright	8 * 1. Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.	9 * notice, this list of conditions and the following disclaimer.

10 * 2. Redistributions in binary form must reproduce the above copyright	10 * 2. Redistributions in binary form must reproduce the above copyright

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51 // IMPORTANT: Result must be independent of whether destinationContext is	51 // IMPORTANT: Result must be independent of whether destinationContext is

52 // already tainted because this function may be used to determine whether	52 // already tainted because this function may be used to determine whether

53 // a CanvasPattern is "origin clean", and that pattern may be used on	53 // a CanvasPattern is "origin clean", and that pattern may be used on

54 // another canvas, which may not be already tainted.	54 // another canvas, which may not be already tainted.

55 virtual bool wouldTaintOrigin(SecurityOrigin* destinationSecurityOrigin) con st = 0;	55 virtual bool wouldTaintOrigin(SecurityOrigin* destinationSecurityOrigin) con st = 0;

56	56

57 virtual bool isVideoElement() const { return false; }	57 virtual bool isVideoElement() const { return false; }

58 virtual bool isCanvasElement() const { return false; }	58 virtual bool isCanvasElement() const { return false; }

59 virtual bool isSVGSource() const { return false; }	59 virtual bool isSVGSource() const { return false; }

60 virtual bool isImageBitmap() const { return false; }	60 virtual bool isImageBitmap() const { return false; }

	61 virtual bool isOffscreenCanvas() const { return false; }

61	62

62 // Adjusts the source and destination rectangles for cases where the actual	63 // Adjusts the source and destination rectangles for cases where the actual

63 // source image is a subregion of the image returned by getSourceImageForCan vas.	64 // source image is a subregion of the image returned by getSourceImageForCan vas.

64 virtual void adjustDrawRects(FloatRect* srcRect, FloatRect* dstRect) const { }	65 virtual void adjustDrawRects(FloatRect* srcRect, FloatRect* dstRect) const { }

65	66

66 virtual FloatSize elementSize(const FloatSize& defaultObjectSize) const = 0;	67 virtual FloatSize elementSize(const FloatSize& defaultObjectSize) const = 0;

67 virtual FloatSize defaultDestinationSize(const FloatSize& defaultObjectSize) const { return elementSize(defaultObjectSize); }	68 virtual FloatSize defaultDestinationSize(const FloatSize& defaultObjectSize) const { return elementSize(defaultObjectSize); }

68 virtual const KURL& sourceURL() const { return blankURL(); }	69 virtual const KURL& sourceURL() const { return blankURL(); }

69 virtual bool isOpaque() const { return false; }	70 virtual bool isOpaque() const { return false; }

70	71

71 virtual int sourceWidth() = 0;	72 virtual int sourceWidth() = 0;

72 virtual int sourceHeight() = 0;	73 virtual int sourceHeight() = 0;

73	74

74 protected:	75 protected:

75 virtual ~CanvasImageSource() { }	76 virtual ~CanvasImageSource() { }

76 };	77 };

77	78

78 } // namespace blink	79 } // namespace blink

79	80

80 #endif	81 #endif

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