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1 /* | 1 /* |
2 * Copyright (C) 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2012 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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33 | 33 |
34 namespace blink { | 34 namespace blink { |
35 | 35 |
36 class Document; | 36 class Document; |
37 class StyleFetchedImageSet; | 37 class StyleFetchedImageSet; |
38 class StyleImage; | 38 class StyleImage; |
39 | 39 |
40 class CSSImageSetValue : public CSSValueList { | 40 class CSSImageSetValue : public CSSValueList { |
41 public: | 41 public: |
42 | 42 |
43 static PassRefPtrWillBeRawPtr<CSSImageSetValue> create() | 43 static PassRefPtr<CSSImageSetValue> create() |
44 { | 44 { |
45 return adoptRefWillBeNoop(new CSSImageSetValue()); | 45 return adoptRef(new CSSImageSetValue()); |
46 } | 46 } |
47 ~CSSImageSetValue(); | 47 ~CSSImageSetValue(); |
48 | 48 |
49 StyleFetchedImageSet* cachedImageSet(Document*, float deviceScaleFactor, con
st ResourceLoaderOptions&); | 49 StyleFetchedImageSet* cachedImageSet(Document*, float deviceScaleFactor, con
st ResourceLoaderOptions&); |
50 StyleFetchedImageSet* cachedImageSet(Document*, float deviceScaleFactor); | 50 StyleFetchedImageSet* cachedImageSet(Document*, float deviceScaleFactor); |
51 | 51 |
52 // Returns a StyleFetchedImageSet if the best fit image has been cached alre
ady, otherwise a StylePendingImage. | 52 // Returns a StyleFetchedImageSet if the best fit image has been cached alre
ady, otherwise a StylePendingImage. |
53 StyleImage* cachedOrPendingImageSet(float); | 53 StyleImage* cachedOrPendingImageSet(float); |
54 | 54 |
55 String customCSSText() const; | 55 String customCSSText() const; |
56 | 56 |
57 bool isPending() const { return !m_accessedBestFitImage; } | 57 bool isPending() const { return !m_accessedBestFitImage; } |
58 | 58 |
59 struct ImageWithScale { | 59 struct ImageWithScale { |
60 ALLOW_ONLY_INLINE_ALLOCATION(); | 60 ALLOW_ONLY_INLINE_ALLOCATION(); |
61 String imageURL; | 61 String imageURL; |
62 Referrer referrer; | 62 Referrer referrer; |
63 float scaleFactor; | 63 float scaleFactor; |
64 }; | 64 }; |
65 | 65 |
66 bool hasFailedOrCanceledSubresources() const; | 66 bool hasFailedOrCanceledSubresources() const; |
67 | 67 |
68 DECLARE_TRACE_AFTER_DISPATCH(); | |
69 | |
70 protected: | 68 protected: |
71 ImageWithScale bestImageForScaleFactor(); | 69 ImageWithScale bestImageForScaleFactor(); |
72 | 70 |
73 private: | 71 private: |
74 CSSImageSetValue(); | 72 CSSImageSetValue(); |
75 | 73 |
76 void fillImageSet(); | 74 void fillImageSet(); |
77 static inline bool compareByScaleFactor(ImageWithScale first, ImageWithScale
second) { return first.scaleFactor < second.scaleFactor; } | 75 static inline bool compareByScaleFactor(ImageWithScale first, ImageWithScale
second) { return first.scaleFactor < second.scaleFactor; } |
78 | 76 |
79 RefPtrWillBeMember<StyleImage> m_imageSet; | 77 RefPtrWillBePersistent<StyleImage> m_imageSet; |
80 bool m_accessedBestFitImage; | 78 bool m_accessedBestFitImage; |
81 | 79 |
82 // This represents the scale factor that we used to find the best fit image.
It does not necessarily | 80 // This represents the scale factor that we used to find the best fit image.
It does not necessarily |
83 // correspond to the scale factor of the best fit image. | 81 // correspond to the scale factor of the best fit image. |
84 float m_scaleFactor; | 82 float m_scaleFactor; |
85 | 83 |
86 Vector<ImageWithScale> m_imagesInSet; | 84 Vector<ImageWithScale> m_imagesInSet; |
87 }; | 85 }; |
88 | 86 |
89 DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageSetValue, isImageSetValue()); | 87 DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageSetValue, isImageSetValue()); |
90 | 88 |
91 } // namespace blink | 89 } // namespace blink |
92 | 90 |
93 #endif // CSSImageSetValue_h | 91 #endif // CSSImageSetValue_h |
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