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