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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/CSSSegmentedFontFaceCache.h"
#include "core/fetch/ResourcePtr.h"
#include "platform/Timer.h"
#include "platform/fonts/FontSelector.h"
#include "platform/fonts/GenericFontFamilySettings.h"
#include "wtf/Forward.h"
#include "wtf/HashMap.h"
#include "wtf/HashSet.h"
namespace WebCore {
class CSSFontFace;
class CSSFontFaceRule;
class CSSSegmentedFontFace;
class FontResource;
class Document;
class FontDescription;
class StyleRuleFontFace;
class FontLoader {
public:
explicit FontLoader(ResourceFetcher*);
void addFontToBeginLoading(FontResource*);
void loadPendingFonts();
void clearResourceFetcher();
private:
void beginLoadTimerFired(Timer<FontLoader>*);
Timer<FontLoader> m_beginLoadingTimer;
Vector<ResourcePtr<FontResource> > m_fontsToBeginLoading;
ResourceFetcher* m_resourceFetcher;
};
class CSSFontSelector : public FontSelector {
public:
static PassRefPtr<CSSFontSelector> create(Document* document)
{
return adoptRef(new CSSFontSelector(document));
}
virtual ~CSSFontSelector();
virtual unsigned version() const OVERRIDE { return m_cssSegmentedFontFaceCache.version(); }
virtual PassRefPtr<FontData> getFontData(const FontDescription&, const AtomicString&);
CSSSegmentedFontFace* getFontFace(const FontDescription&, const AtomicString& family);
virtual void willUseFontData(const FontDescription&, const AtomicString& family) OVERRIDE;
void clearDocument();
void addFontFaceRule(const StyleRuleFontFace*, PassRefPtr<CSSFontFace>);
void removeFontFaceRule(const StyleRuleFontFace*);
void fontLoaded();
virtual void fontCacheInvalidated();
virtual void registerForInvalidationCallbacks(FontSelectorClient*);
virtual void unregisterForInvalidationCallbacks(FontSelectorClient*);
Document* document() const { return m_document; }
const GenericFontFamilySettings& genericFontFamilySettings() const { return m_genericFontFamilySettings; }
void beginLoadingFontSoon(FontResource*);
void loadPendingFonts();
private:
explicit CSSFontSelector(Document*);
void dispatchInvalidationCallbacks();
Document* m_document;
// FIXME: Move to Document or StyleEngine.
CSSSegmentedFontFaceCache m_cssSegmentedFontFaceCache;
HashSet<FontSelectorClient*> m_clients;
FontLoader m_fontLoader;
GenericFontFamilySettings m_genericFontFamilySettings;
};
} // namespace WebCore
#endif // CSSFontSelector_h
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