1 /* 2 * Copyright (C) 2008 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef CSSSegmentedFontFace_h 27 #define CSSSegmentedFontFace_h 28 29 #include "platform/fonts/FontTraits.h" 30 #include "platform/heap/Handle.h" 31 #include "wtf/HashMap.h" 32 #include "wtf/ListHashSet.h" 33 #include "wtf/PassRefPtr.h" 34 #include "wtf/RefCounted.h" 35 #include "wtf/Vector.h" 36 #include "wtf/text/WTFString.h" 37 38 namespace WebCore { 39 40 class CSSFontFace; 41 class CSSFontSelector; 42 class FontData; 43 class FontDescription; 44 class FontFace; 45 class SegmentedFontData; 46 47 class CSSSegmentedFontFace FINAL : public RefCountedWillBeGarbageCollectedFinalized<CSSSegmentedFontFace> { 48 public: 49 static PassRefPtrWillBeRawPtr<CSSSegmentedFontFace> create(CSSFontSelector* selector, FontTraits traits) 50 { 51 return adoptRefWillBeNoop(new CSSSegmentedFontFace(selector, traits)); 52 } 53 ~CSSSegmentedFontFace(); 54 55 CSSFontSelector* fontSelector() const { return m_fontSelector; } 56 FontTraits traits() const { return m_traits; } 57 58 void fontLoaded(CSSFontFace*); 59 void fontLoadWaitLimitExceeded(CSSFontFace*); 60 61 void addFontFace(PassRefPtrWillBeRawPtr<FontFace>, bool cssConnected); 62 void removeFontFace(PassRefPtrWillBeRawPtr<FontFace>); 63 bool isEmpty() const { return m_fontFaces.isEmpty(); } 64 65 PassRefPtr<FontData> getFontData(const FontDescription&); 66 67 bool checkFont(const String&) const; 68 void match(const String&, WillBeHeapVector<RefPtrWillBeMember<FontFace> >&) const; 69 void willUseFontData(const FontDescription&, UChar32); 70 71 void trace(Visitor*); 72 73 private: 74 CSSSegmentedFontFace(CSSFontSelector*, FontTraits); 75 76 void pruneTable(); 77 bool isValid() const; 78 bool isLoading() const; 79 bool isLoaded() const; 80 81 typedef WillBeHeapListHashSet<RefPtrWillBeMember<FontFace> > FontFaceList; 82 83 RawPtrWillBeMember<CSSFontSelector> m_fontSelector; 84 FontTraits m_traits; 85 HashMap<unsigned, RefPtr<SegmentedFontData> > m_fontDataTable; 86 // All non-CSS-connected FontFaces are stored after the CSS-connected ones. 87 FontFaceList m_fontFaces; 88 FontFaceList::iterator m_firstNonCssConnectedFace; 89 }; 90 91 } // namespace WebCore 92 93 #endif // CSSSegmentedFontFace_h 94
