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| 1 /* | 1 /* |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google 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 are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * 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 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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| 36 #include "platform/heap/Handle.h" | 36 #include "platform/heap/Handle.h" |
| 37 #include "wtf/HashMap.h" | 37 #include "wtf/HashMap.h" |
| 38 #include "wtf/HashSet.h" | 38 #include "wtf/HashSet.h" |
| 39 #include "wtf/Noncopyable.h" | 39 #include "wtf/Noncopyable.h" |
| 40 #include "wtf/OwnPtr.h" | 40 #include "wtf/OwnPtr.h" |
| 41 #include "wtf/PassOwnPtr.h" | 41 #include "wtf/PassOwnPtr.h" |
| 42 | 42 |
| 43 namespace blink { | 43 namespace blink { |
| 44 | 44 |
| 45 class Document; | 45 class Document; |
| 46 class LayoutListItem; |
| 47 class LayoutListMarker; |
| 46 class RenderBlock; | 48 class RenderBlock; |
| 47 class RenderListItem; | |
| 48 class RenderListMarker; | |
| 49 | 49 |
| 50 // Single-pass text autosizer. Documentation at: | 50 // Single-pass text autosizer. Documentation at: |
| 51 // http://tinyurl.com/TextAutosizer | 51 // http://tinyurl.com/TextAutosizer |
| 52 | 52 |
| 53 class TextAutosizer final : public NoBaseWillBeGarbageCollectedFinalized<TextAut
osizer> { | 53 class TextAutosizer final : public NoBaseWillBeGarbageCollectedFinalized<TextAut
osizer> { |
| 54 WTF_MAKE_NONCOPYABLE(TextAutosizer); | 54 WTF_MAKE_NONCOPYABLE(TextAutosizer); |
| 55 public: | 55 public: |
| 56 static PassOwnPtrWillBeRawPtr<TextAutosizer> create(const Document* document
) | 56 static PassOwnPtrWillBeRawPtr<TextAutosizer> create(const Document* document
) |
| 57 { | 57 { |
| 58 return adoptPtrWillBeNoop(new TextAutosizer(document)); | 58 return adoptPtrWillBeNoop(new TextAutosizer(document)); |
| 59 } | 59 } |
| 60 static float computeAutosizedFontSize(float specifiedSize, float multiplier)
; | 60 static float computeAutosizedFontSize(float specifiedSize, float multiplier)
; |
| 61 | 61 |
| 62 void updatePageInfoInAllFrames(); | 62 void updatePageInfoInAllFrames(); |
| 63 void updatePageInfo(); | 63 void updatePageInfo(); |
| 64 void record(const RenderBlock*); | 64 void record(const RenderBlock*); |
| 65 void destroy(const RenderBlock*); | 65 void destroy(const RenderBlock*); |
| 66 void inflateListItem(RenderListItem*, RenderListMarker*); | 66 void inflateListItem(LayoutListItem*, LayoutListMarker*); |
| 67 | 67 |
| 68 DECLARE_TRACE(); | 68 DECLARE_TRACE(); |
| 69 | 69 |
| 70 class LayoutScope { | 70 class LayoutScope { |
| 71 public: | 71 public: |
| 72 explicit LayoutScope(RenderBlock*); | 72 explicit LayoutScope(RenderBlock*); |
| 73 ~LayoutScope(); | 73 ~LayoutScope(); |
| 74 protected: | 74 protected: |
| 75 TextAutosizer* m_textAutosizer; | 75 TextAutosizer* m_textAutosizer; |
| 76 RenderBlock* m_block; | 76 RenderBlock* m_block; |
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| 306 FingerprintMapper m_fingerprintMapper; | 306 FingerprintMapper m_fingerprintMapper; |
| 307 Vector<RefPtr<LayoutStyle>> m_stylesRetainedDuringLayout; | 307 Vector<RefPtr<LayoutStyle>> m_stylesRetainedDuringLayout; |
| 308 // FIXME: All frames should share the same m_pageInfo instance. | 308 // FIXME: All frames should share the same m_pageInfo instance. |
| 309 PageInfo m_pageInfo; | 309 PageInfo m_pageInfo; |
| 310 bool m_updatePageInfoDeferred; | 310 bool m_updatePageInfoDeferred; |
| 311 }; | 311 }; |
| 312 | 312 |
| 313 } // namespace blink | 313 } // namespace blink |
| 314 | 314 |
| 315 #endif // TextAutosizer_h | 315 #endif // TextAutosizer_h |
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