1 /* 2 * Copyright (C) 2007, 2008, 2011 Apple Inc. All rights reserved. 3 * Copyright (C) 2013 Google Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef FontFaceCache_h 28 #define FontFaceCache_h 29 30 #include "platform/heap/Handle.h" 31 #include "wtf/Forward.h" 32 #include "wtf/HashMap.h" 33 #include "wtf/ListHashSet.h" 34 #include "wtf/text/StringHash.h" 35 36 namespace blink { 37 38 class FontFace; 39 class CSSFontSelector; 40 class CSSSegmentedFontFace; 41 class FontDescription; 42 class StyleRuleFontFace; 43 44 class FontFaceCache FINAL { 45 DISALLOW_ALLOCATION(); 46 public: 47 FontFaceCache(); 48 49 // FIXME: Remove CSSFontSelector as argument. Passing CSSFontSelector here is 50 // a result of egregious spaghettification in FontFace/FontFaceSet. 51 void add(CSSFontSelector*, const StyleRuleFontFace*, PassRefPtrWillBeRawPtr<FontFace>); 52 void remove(const StyleRuleFontFace*); 53 void clearCSSConnected(); 54 void clearAll(); 55 void addFontFace(CSSFontSelector*, PassRefPtrWillBeRawPtr<FontFace>, bool cssConnected); 56 void removeFontFace(FontFace*, bool cssConnected); 57 58 // FIXME: It's sort of weird that add/remove uses StyleRuleFontFace* as key, 59 // but this function uses FontDescription/family pair. 60 CSSSegmentedFontFace* get(const FontDescription&, const AtomicString& family); 61 62 const WillBeHeapListHashSet<RefPtrWillBeMember<FontFace> >& cssConnectedFontFaces() const { return m_cssConnectedFontFaces; } 63 64 unsigned version() const { return m_version; } 65 void incrementVersion() { ++m_version; } 66 67 void trace(Visitor*); 68 69 private: 70 typedef WillBeHeapHashMap<unsigned, RefPtrWillBeMember<CSSSegmentedFontFace> > TraitsMap; 71 typedef WillBeHeapHashMap<String, OwnPtrWillBeMember<TraitsMap>, CaseFoldingHash> FamilyToTraitsMap; 72 typedef WillBeHeapHashMap<const StyleRuleFontFace*, RefPtrWillBeMember<FontFace> > StyleRuleToFontFace; 73 FamilyToTraitsMap m_fontFaces; 74 FamilyToTraitsMap m_fonts; 75 StyleRuleToFontFace m_styleRuleToFontFace; 76 WillBeHeapListHashSet<RefPtrWillBeMember<FontFace> > m_cssConnectedFontFaces; 77 78 // FIXME: See if this could be ditched 79 // Used to compare Font instances, and the usage seems suspect. 80 unsigned m_version; 81 }; 82 83 } 84 85 #endif 86
