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 CSSFontFaceSource_h 27 #define CSSFontFaceSource_h 28 29 #include "platform/heap/Handle.h" 30 #include "wtf/HashMap.h" 31 32 namespace WebCore { 33 34 class FontResource; 35 class CSSFontFace; 36 class FontDescription; 37 class SimpleFontData; 38 39 class CSSFontFaceSource : public NoBaseWillBeGarbageCollectedFinalized<CSSFontFaceSource> { 40 public: 41 virtual ~CSSFontFaceSource(); 42 43 virtual bool isLocal() const { return false; } 44 virtual bool isLoading() const { return false; } 45 virtual bool isLoaded() const { return true; } 46 virtual bool isValid() const { return true; } 47 48 virtual FontResource* resource() { return 0; } 49 void setFontFace(CSSFontFace* face) { m_face = face; } 50 51 PassRefPtr<SimpleFontData> getFontData(const FontDescription&); 52 53 virtual bool isLocalFontAvailable(const FontDescription&) { return false; } 54 virtual void beginLoadIfNeeded() { } 55 56 // For UMA reporting 57 virtual bool hadBlankText() { return false; } 58 59 virtual void trace(Visitor*); 60 61 protected: 62 CSSFontFaceSource(); 63 virtual PassRefPtr<SimpleFontData> createFontData(const FontDescription&) = 0; 64 65 typedef HashMap<unsigned, RefPtr<SimpleFontData> > FontDataTable; // The hash key is composed of size synthetic styles. 66 67 RawPtrWillBeMember<CSSFontFace> m_face; // Our owning font face. 68 FontDataTable m_fontDataTable; 69 }; 70 71 } 72 73 #endif 74
