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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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46 // of zero | 46 // of zero |
47 kIncompleteSourceImageStatus, // Image element with no source media | 47 kIncompleteSourceImageStatus, // Image element with no source media |
48 kInvalidSourceImageStatus, | 48 kInvalidSourceImageStatus, |
49 }; | 49 }; |
50 | 50 |
51 class CORE_EXPORT CanvasImageSource { | 51 class CORE_EXPORT CanvasImageSource { |
52 public: | 52 public: |
53 virtual PassRefPtr<Image> GetSourceImageForCanvas(SourceImageStatus*, | 53 virtual PassRefPtr<Image> GetSourceImageForCanvas(SourceImageStatus*, |
54 AccelerationHint, | 54 AccelerationHint, |
55 SnapshotReason, | 55 SnapshotReason, |
56 const FloatSize&) const = 0; | 56 const FloatSize&) = 0; |
57 | 57 |
58 // IMPORTANT: Result must be independent of whether destinationContext is | 58 // IMPORTANT: Result must be independent of whether destinationContext is |
59 // already tainted because this function may be used to determine whether | 59 // already tainted because this function may be used to determine whether |
60 // a CanvasPattern is "origin clean", and that pattern may be used on | 60 // a CanvasPattern is "origin clean", and that pattern may be used on |
61 // another canvas, which may not be already tainted. | 61 // another canvas, which may not be already tainted. |
62 virtual bool WouldTaintOrigin( | 62 virtual bool WouldTaintOrigin( |
63 SecurityOrigin* destination_security_origin) const = 0; | 63 SecurityOrigin* destination_security_origin) const = 0; |
64 | 64 |
65 virtual bool IsCSSImageValue() const { return false; } | 65 virtual bool IsCSSImageValue() const { return false; } |
66 virtual bool IsVideoElement() const { return false; } | 66 virtual bool IsVideoElement() const { return false; } |
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87 virtual int SourceWidth() = 0; | 87 virtual int SourceWidth() = 0; |
88 virtual int SourceHeight() = 0; | 88 virtual int SourceHeight() = 0; |
89 | 89 |
90 protected: | 90 protected: |
91 virtual ~CanvasImageSource() {} | 91 virtual ~CanvasImageSource() {} |
92 }; | 92 }; |
93 | 93 |
94 } // namespace blink | 94 } // namespace blink |
95 | 95 |
96 #endif | 96 #endif |
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