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70 lines
2.6 KiB
C++
70 lines
2.6 KiB
C++
/*
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* Copyright (C) 2007, 2008, 2011 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_CORE_CSS_CSSFONTFACESOURCE_H_
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#define SKY_ENGINE_CORE_CSS_CSSFONTFACESOURCE_H_
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#include "sky/engine/platform/heap/Handle.h"
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#include "sky/engine/wtf/HashMap.h"
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namespace blink {
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class CSSFontFace;
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class FontDescription;
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class SimpleFontData;
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class CSSFontFaceSource {
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public:
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virtual ~CSSFontFaceSource();
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virtual bool isLocal() const { return false; }
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virtual bool isLoading() const { return false; }
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virtual bool isLoaded() const { return true; }
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virtual bool isValid() const { return true; }
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void setFontFace(CSSFontFace* face) { m_face = face; }
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PassRefPtr<SimpleFontData> getFontData(const FontDescription&);
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virtual bool isLocalFontAvailable(const FontDescription&) { return false; }
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virtual void beginLoadIfNeeded() { }
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// For UMA reporting
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virtual bool hadBlankText() { return false; }
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protected:
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CSSFontFaceSource();
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virtual PassRefPtr<SimpleFontData> createFontData(const FontDescription&) = 0;
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typedef HashMap<unsigned, RefPtr<SimpleFontData> > FontDataTable; // The hash key is composed of size synthetic styles.
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RawPtr<CSSFontFace> m_face; // Our owning font face.
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FontDataTable m_fontDataTable;
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};
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}
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#endif // SKY_ENGINE_CORE_CSS_CSSFONTFACESOURCE_H_
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