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/*
* Copyright (C) 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CSSSegmentedFontFace_h
#define CSSSegmentedFontFace_h
#include "platform/fonts/FontTraitsMask.h"
#include "wtf/HashMap.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
#include "wtf/Vector.h"
#include "wtf/text/WTFString.h"
namespace WebCore {
class CSSFontFace;
class CSSFontSelector;
class FontData;
class FontDescription;
class FontFace;
class SegmentedFontData;
class CSSSegmentedFontFace : public RefCounted<CSSSegmentedFontFace> {
public:
static PassRefPtr<CSSSegmentedFontFace> create(CSSFontSelector* selector, FontTraitsMask traitsMask, bool isLocalFallback) { return adoptRef(new CSSSegmentedFontFace(selector, traitsMask, isLocalFallback)); }
~CSSSegmentedFontFace();
CSSFontSelector* fontSelector() const { return m_fontSelector; }
FontTraitsMask traitsMask() const { return m_traitsMask; }
bool isLocalFallback() const { return m_isLocalFallback; }
void fontLoaded(CSSFontFace*);
void appendFontFace(PassRefPtr<CSSFontFace>);
PassRefPtr<FontData> getFontData(const FontDescription&);
class LoadFontCallback : public RefCounted<LoadFontCallback> {
public:
virtual ~LoadFontCallback() { }
virtual void notifyLoaded(CSSSegmentedFontFace*) = 0;
virtual void notifyError(CSSSegmentedFontFace*) = 0;
};
bool checkFont(const String&) const;
void loadFont(const FontDescription&, const String&, PassRefPtr<LoadFontCallback>);
Vector<RefPtr<FontFace> > fontFaces(const String& text) const;
void willUseFontData(const FontDescription&);
private:
CSSSegmentedFontFace(CSSFontSelector*, FontTraitsMask, bool isLocalFallback);
void pruneTable();
bool isValid() const;
bool isLoading() const;
bool isLoaded() const;
CSSFontSelector* m_fontSelector;
FontTraitsMask m_traitsMask;
bool m_isLocalFallback;
HashMap<unsigned, RefPtr<SegmentedFontData> > m_fontDataTable;
Vector<RefPtr<CSSFontFace>, 1> m_fontFaces;
Vector<RefPtr<LoadFontCallback> > m_callbacks;
};
} // namespace WebCore
#endif // CSSSegmentedFontFace_h