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/*
* 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 CSSFontSelector_h
#define CSSFontSelector_h
#include "core/css/FontFaceCache.h"
#include "core/css/FontLoader.h"
#include "platform/fonts/FontSelector.h"
#include "platform/fonts/GenericFontFamilySettings.h"
#include "platform/heap/Handle.h"
#include "wtf/Forward.h"
#include "wtf/HashMap.h"
#include "wtf/HashSet.h"
namespace WebCore {
class CSSFontFace;
class CSSFontFaceRule;
class CSSFontSelectorClient;
class CSSSegmentedFontFace;
class Document;
class FontDescription;
class StyleRuleFontFace;
class CSSFontSelector FINAL : public FontSelector {
public:
static PassRefPtrWillBeRawPtr<CSSFontSelector> create(Document* document)
{
return adoptRefWillBeNoop(new CSSFontSelector(document));
}
virtual ~CSSFontSelector();
virtual unsigned version() const OVERRIDE { return m_fontFaceCache.version(); }
virtual PassRefPtr<FontData> getFontData(const FontDescription&, const AtomicString&) OVERRIDE;
virtual void willUseFontData(const FontDescription&, const AtomicString& family, UChar32) OVERRIDE;
bool isPlatformFontAvailable(const FontDescription&, const AtomicString& family);
#if !ENABLE(OILPAN)
void clearDocument();
#endif
void fontFaceInvalidated();
// FontCacheClient implementation
virtual void fontCacheInvalidated() OVERRIDE;
void registerForInvalidationCallbacks(CSSFontSelectorClient*);
#if !ENABLE(OILPAN)
void unregisterForInvalidationCallbacks(CSSFontSelectorClient*);
#endif
Document* document() const { return m_document; }
FontFaceCache* fontFaceCache() { return &m_fontFaceCache; }
FontLoader* fontLoader() { return m_fontLoader.get(); }
const GenericFontFamilySettings& genericFontFamilySettings() const { return m_genericFontFamilySettings; }
void updateGenericFontFamilySettings(Document&);
virtual void trace(Visitor*);
private:
explicit CSSFontSelector(Document*);
void dispatchInvalidationCallbacks();
// FIXME: Oilpan: Ideally this should just be a traced Member but that will
// currently leak because RenderStyle and its data are not on the heap.
// See crbug.com/383860 for details.
RawPtrWillBeWeakMember<Document> m_document;
// FIXME: Move to Document or StyleEngine.
FontFaceCache m_fontFaceCache;
WillBeHeapHashSet<RawPtrWillBeWeakMember<CSSFontSelectorClient> > m_clients;
RefPtrWillBeMember<FontLoader> m_fontLoader;
GenericFontFamilySettings m_genericFontFamilySettings;
};
} // namespace WebCore
#endif // CSSFontSelector_h
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