1 /* 2 * Copyright (C) 2007, 2008, 2011 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 CSSFontSelector_h 27 #define CSSFontSelector_h 28 29 #include "core/loader/cache/ResourcePtr.h" 30 #include "core/platform/Timer.h" 31 #include "core/platform/graphics/FontSelector.h" 32 #include "wtf/Forward.h" 33 #include "wtf/HashMap.h" 34 #include "wtf/HashSet.h" 35 #include "wtf/text/StringHash.h" 36 37 namespace WebCore { 38 39 class CSSFontFace; 40 class CSSFontFaceRule; 41 class CSSSegmentedFontFace; 42 class FontResource; 43 class Document; 44 class FontDescription; 45 class StyleRuleFontFace; 46 47 class CSSFontSelector : public FontSelector { 48 public: 49 static PassRefPtr<CSSFontSelector> create(Document* document) 50 { 51 return adoptRef(new CSSFontSelector(document)); 52 } 53 virtual ~CSSFontSelector(); 54 55 virtual unsigned version() const OVERRIDE { return m_version; } 56 57 virtual PassRefPtr<FontData> getFontData(const FontDescription&, const AtomicString&); 58 CSSSegmentedFontFace* getFontFace(const FontDescription&, const AtomicString& family); 59 60 void clearDocument(); 61 62 void addFontFaceRule(const StyleRuleFontFace*); 63 64 void fontLoaded(); 65 virtual void fontCacheInvalidated(); 66 67 bool isEmpty() const; 68 69 virtual void registerForInvalidationCallbacks(FontSelectorClient*); 70 virtual void unregisterForInvalidationCallbacks(FontSelectorClient*); 71 72 Document* document() const { return m_document; } 73 74 void beginLoadingFontSoon(FontResource*); 75 76 private: 77 CSSFontSelector(Document*); 78 79 void dispatchInvalidationCallbacks(); 80 81 void beginLoadTimerFired(Timer<CSSFontSelector>*); 82 83 Document* m_document; 84 HashMap<String, OwnPtr<Vector<RefPtr<CSSFontFace> > >, CaseFoldingHash> m_fontFaces; 85 HashMap<String, OwnPtr<Vector<RefPtr<CSSFontFace> > >, CaseFoldingHash> m_locallyInstalledFontFaces; 86 HashMap<String, OwnPtr<HashMap<unsigned, RefPtr<CSSSegmentedFontFace> > >, CaseFoldingHash> m_fonts; 87 HashSet<FontSelectorClient*> m_clients; 88 89 Vector<ResourcePtr<FontResource> > m_fontsToBeginLoading; 90 Timer<CSSFontSelector> m_beginLoadingTimer; 91 92 unsigned m_version; 93 }; 94 95 } // namespace WebCore 96 97 #endif // CSSFontSelector_h 98
