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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 |
| (...skipping 22 matching lines...) Expand all Loading... |
| 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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