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| 1 /* | 1 /* |
| 2 * Copyright (C) 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2008 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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| 43 , count(newCount) | 43 , count(newCount) |
| 44 { | 44 { |
| 45 } | 45 } |
| 46 | 46 |
| 47 IntSize size; | 47 IntSize size; |
| 48 int count; | 48 int count; |
| 49 }; | 49 }; |
| 50 | 50 |
| 51 typedef HashMap<const LayoutObject*, SizeAndCount> LayoutObjectSizeCountMap; | 51 typedef HashMap<const LayoutObject*, SizeAndCount> LayoutObjectSizeCountMap; |
| 52 | 52 |
| 53 class CSSImageGeneratorValue : public CSSValue { | 53 class CSSImageGeneratorValue : public CSSValueObject { |
| 54 public: | 54 public: |
| 55 ~CSSImageGeneratorValue(); | 55 ~CSSImageGeneratorValue(); |
| 56 | 56 |
| 57 void addClient(LayoutObject*, const IntSize&); | 57 void addClient(LayoutObject*, const IntSize&); |
| 58 void removeClient(LayoutObject*); | 58 void removeClient(LayoutObject*); |
| 59 PassRefPtr<Image> image(LayoutObject*, const IntSize&); | 59 PassRefPtr<Image> image(LayoutObject*, const IntSize&); |
| 60 | 60 |
| 61 bool isFixedSize() const; | 61 bool isFixedSize() const; |
| 62 IntSize fixedSize(const LayoutObject*); | 62 IntSize fixedSize(const LayoutObject*); |
| 63 | 63 |
| 64 bool isPending() const; | 64 bool isPending() const; |
| 65 bool knownToBeOpaque(const LayoutObject*) const; | 65 bool knownToBeOpaque(const LayoutObject*) const; |
| 66 | 66 |
| 67 void loadSubimages(Document*); | 67 void loadSubimages(Document*); |
| 68 | 68 |
| 69 DEFINE_INLINE_TRACE_AFTER_DISPATCH() { CSSValue::traceAfterDispatch(visitor)
; } | 69 DEFINE_INLINE_TRACE_AFTER_DISPATCH() { CSSValueObject::traceAfterDispatch(vi
sitor); } |
| 70 | 70 |
| 71 protected: | 71 protected: |
| 72 explicit CSSImageGeneratorValue(ClassType); | 72 explicit CSSImageGeneratorValue(ClassType); |
| 73 | 73 |
| 74 Image* getImage(LayoutObject*, const IntSize&); | 74 Image* getImage(LayoutObject*, const IntSize&); |
| 75 void putImage(const IntSize&, PassRefPtr<Image>); | 75 void putImage(const IntSize&, PassRefPtr<Image>); |
| 76 const LayoutObjectSizeCountMap& clients() const { return m_clients; } | 76 const LayoutObjectSizeCountMap& clients() const { return m_clients; } |
| 77 | 77 |
| 78 HashCountedSet<IntSize> m_sizes; // A count of how many times a given image
size is in use. | 78 HashCountedSet<IntSize> m_sizes; // A count of how many times a given image
size is in use. |
| 79 LayoutObjectSizeCountMap m_clients; // A map from LayoutObjects (with entry
count) to image sizes. | 79 LayoutObjectSizeCountMap m_clients; // A map from LayoutObjects (with entry
count) to image sizes. |
| 80 HashMap<IntSize, RefPtr<Image>> m_images; // A cache of Image objects by ima
ge size. | 80 HashMap<IntSize, RefPtr<Image>> m_images; // A cache of Image objects by ima
ge size. |
| 81 | 81 |
| 82 #if ENABLE(OILPAN) | 82 #if ENABLE(OILPAN) |
| 83 // FIXME: Oilpan: when/if we can make the layoutObject point directly to the
CSSImageGenerator value using | 83 // FIXME: Oilpan: when/if we can make the layoutObject point directly to the
CSSImageGenerator value using |
| 84 // a member we don't need to have this hack where we keep a persistent to th
e instance as long as | 84 // a member we don't need to have this hack where we keep a persistent to th
e instance as long as |
| 85 // there are clients in the LayoutObjectSizeCountMap. | 85 // there are clients in the LayoutObjectSizeCountMap. |
| 86 GC_PLUGIN_IGNORE("366546") | 86 GC_PLUGIN_IGNORE("366546") |
| 87 OwnPtr<Persistent<CSSImageGeneratorValue>> m_keepAlive; | 87 OwnPtr<Persistent<CSSImageGeneratorValue>> m_keepAlive; |
| 88 #endif | 88 #endif |
| 89 }; | 89 }; |
| 90 | 90 |
| 91 DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageGeneratorValue, isImageGeneratorValue()); | 91 DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageGeneratorValue, isImageGeneratorValue()); |
| 92 | 92 |
| 93 } // namespace blink | 93 } // namespace blink |
| 94 | 94 |
| 95 #endif // CSSImageGeneratorValue_h | 95 #endif // CSSImageGeneratorValue_h |
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