/*
* Copyright (C) 2007, 2008, 2011 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 CSSFontFaceSource_h
#define CSSFontFaceSource_h
#include "wtf/HashMap.h"
namespace WebCore {
class FontResource;
class CSSFontFace;
class FontDescription;
class SimpleFontData;
class CSSFontFaceSource {
public:
virtual ~CSSFontFaceSource();
virtual bool isLocal() const { return false; }
virtual bool isLoading() const { return false; }
virtual bool isLoaded() const { return true; }
virtual bool isValid() const { return true; }
virtual FontResource* resource() { return 0; }
void setFontFace(CSSFontFace* face) { m_face = face; }
PassRefPtr<SimpleFontData> getFontData(const FontDescription&);
virtual bool isLocalFontAvailable(const FontDescription&) { return false; }
// For UMA reporting
virtual bool hadBlankText() { return false; }
protected:
CSSFontFaceSource();
virtual PassRefPtr<SimpleFontData> createFontData(const FontDescription&) = 0;
typedef HashMap<unsigned, RefPtr<SimpleFontData> > FontDataTable; // The hash key is composed of size synthetic styles.
CSSFontFace* m_face; // Our owning font face.
FontDataTable m_fontDataTable;
};
}
#endif