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1 /* | 1 /* |
2 * Copyright (C) 2011 Apple Inc. All rights reserved. | 2 * Copyright (C) 2011 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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34 | 34 |
35 namespace blink { | 35 namespace blink { |
36 | 36 |
37 static bool subimageIsPending(CSSValue* value) { | 37 static bool subimageIsPending(CSSValue* value) { |
38 if (value->isImageValue()) | 38 if (value->isImageValue()) |
39 return toCSSImageValue(value)->isCachePending(); | 39 return toCSSImageValue(value)->isCachePending(); |
40 | 40 |
41 if (value->isImageGeneratorValue()) | 41 if (value->isImageGeneratorValue()) |
42 return toCSSImageGeneratorValue(value)->isPending(); | 42 return toCSSImageGeneratorValue(value)->isPending(); |
43 | 43 |
44 ASSERT_NOT_REACHED(); | 44 NOTREACHED(); |
45 | 45 |
46 return false; | 46 return false; |
47 } | 47 } |
48 | 48 |
49 static bool subimageKnownToBeOpaque(CSSValue* value, | 49 static bool subimageKnownToBeOpaque(CSSValue* value, |
50 const LayoutObject& layoutObject) { | 50 const LayoutObject& layoutObject) { |
51 if (value->isImageValue()) | 51 if (value->isImageValue()) |
52 return toCSSImageValue(value)->knownToBeOpaque(layoutObject); | 52 return toCSSImageValue(value)->knownToBeOpaque(layoutObject); |
53 | 53 |
54 if (value->isImageGeneratorValue()) | 54 if (value->isImageGeneratorValue()) |
55 return toCSSImageGeneratorValue(value)->knownToBeOpaque(layoutObject); | 55 return toCSSImageGeneratorValue(value)->knownToBeOpaque(layoutObject); |
56 | 56 |
57 ASSERT_NOT_REACHED(); | 57 NOTREACHED(); |
58 | 58 |
59 return false; | 59 return false; |
60 } | 60 } |
61 | 61 |
62 static ImageResourceContent* cachedImageForCSSValue(CSSValue* value, | 62 static ImageResourceContent* cachedImageForCSSValue(CSSValue* value, |
63 const Document& document) { | 63 const Document& document) { |
64 if (!value) | 64 if (!value) |
65 return nullptr; | 65 return nullptr; |
66 | 66 |
67 if (value->isImageValue()) { | 67 if (value->isImageValue()) { |
68 StyleImage* styleImageResource = | 68 StyleImage* styleImageResource = |
69 toCSSImageValue(value)->cacheImage(document); | 69 toCSSImageValue(value)->cacheImage(document); |
70 if (!styleImageResource) | 70 if (!styleImageResource) |
71 return nullptr; | 71 return nullptr; |
72 | 72 |
73 return styleImageResource->cachedImage(); | 73 return styleImageResource->cachedImage(); |
74 } | 74 } |
75 | 75 |
76 if (value->isImageGeneratorValue()) { | 76 if (value->isImageGeneratorValue()) { |
77 toCSSImageGeneratorValue(value)->loadSubimages(document); | 77 toCSSImageGeneratorValue(value)->loadSubimages(document); |
78 // FIXME: Handle CSSImageGeneratorValue (and thus cross-fades with gradients | 78 // FIXME: Handle CSSImageGeneratorValue (and thus cross-fades with gradients |
79 // and canvas). | 79 // and canvas). |
80 return nullptr; | 80 return nullptr; |
81 } | 81 } |
82 | 82 |
83 ASSERT_NOT_REACHED(); | 83 NOTREACHED(); |
84 | 84 |
85 return nullptr; | 85 return nullptr; |
86 } | 86 } |
87 | 87 |
88 static Image* renderableImageForCSSValue(CSSValue* value, | 88 static Image* renderableImageForCSSValue(CSSValue* value, |
89 const LayoutObject& layoutObject) { | 89 const LayoutObject& layoutObject) { |
90 ImageResourceContent* cachedImage = | 90 ImageResourceContent* cachedImage = |
91 cachedImageForCSSValue(value, layoutObject.document()); | 91 cachedImageForCSSValue(value, layoutObject.document()); |
92 | 92 |
93 if (!cachedImage || cachedImage->errorOccurred() || | 93 if (!cachedImage || cachedImage->errorOccurred() || |
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295 visitor->trace(m_fromValue); | 295 visitor->trace(m_fromValue); |
296 visitor->trace(m_toValue); | 296 visitor->trace(m_toValue); |
297 visitor->trace(m_percentageValue); | 297 visitor->trace(m_percentageValue); |
298 visitor->trace(m_cachedFromImage); | 298 visitor->trace(m_cachedFromImage); |
299 visitor->trace(m_cachedToImage); | 299 visitor->trace(m_cachedToImage); |
300 visitor->trace(m_crossfadeSubimageObserver); | 300 visitor->trace(m_crossfadeSubimageObserver); |
301 CSSImageGeneratorValue::traceAfterDispatch(visitor); | 301 CSSImageGeneratorValue::traceAfterDispatch(visitor); |
302 } | 302 } |
303 | 303 |
304 } // namespace blink | 304 } // namespace blink |
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