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 <wtf/HashMap.h> 30#include <wtf/PassRefPtr.h> 31#include <wtf/RefCounted.h> 32#include <wtf/Vector.h> 33#include <wtf/unicode/Unicode.h> 34 35namespace WebCore { 36 37class CSSFontFace; 38class CSSFontSelector; 39class FontData; 40class FontDescription; 41class SegmentedFontData; 42 43class CSSSegmentedFontFace : public RefCounted<CSSSegmentedFontFace> { 44public: 45 static PassRefPtr<CSSSegmentedFontFace> create(CSSFontSelector* selector) { return adoptRef(new CSSSegmentedFontFace(selector)); } 46 ~CSSSegmentedFontFace(); 47 48 CSSFontSelector* fontSelector() const { return m_fontSelector; } 49 50 void fontLoaded(CSSFontFace*); 51 52 void appendFontFace(PassRefPtr<CSSFontFace>); 53 54 PassRefPtr<FontData> getFontData(const FontDescription&); 55 56#if ENABLE(FONT_LOAD_EVENTS) 57 class LoadFontCallback : public RefCounted<LoadFontCallback> { 58 public: 59 virtual ~LoadFontCallback() { } 60 virtual void notifyLoaded() = 0; 61 virtual void notifyError() = 0; 62 }; 63 64 bool checkFont() const; 65 void loadFont(const FontDescription&, PassRefPtr<LoadFontCallback> loadCallback); 66#endif 67 68private: 69 CSSSegmentedFontFace(CSSFontSelector*); 70 71 void pruneTable(); 72 bool isValid() const; 73#if ENABLE(FONT_LOAD_EVENTS) 74 bool isLoading() const; 75#endif 76 77 CSSFontSelector* m_fontSelector; 78 HashMap<unsigned, RefPtr<SegmentedFontData> > m_fontDataTable; 79 Vector<RefPtr<CSSFontFace>, 1> m_fontFaces; 80#if ENABLE(FONT_LOAD_EVENTS) 81 Vector<RefPtr<LoadFontCallback> > m_callbacks; 82#endif 83}; 84 85} // namespace WebCore 86 87#endif // CSSSegmentedFontFace_h 88