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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 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 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 "CachedResourceHandle.h"
#include "FontSelector.h"
#include "SimpleFontData.h"
#include "Timer.h"
#include <memory>
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/RefPtr.h>
#include <wtf/text/StringHash.h>
namespace WebCore {
class CSSFontFace;
class CSSFontFaceRule;
class CSSSegmentedFontFace;
class CachedFont;
class Document;
class FontDescription;
class StyleRuleFontFace;
class CSSFontSelector final : public FontSelector {
public:
static PassRefPtr<CSSFontSelector> create(Document* document)
{
return adoptRef(new CSSFontSelector(document));
}
virtual ~CSSFontSelector();
virtual unsigned version() const override { return m_version; }
virtual unsigned uniqueId() const override { return m_uniqueId; }
virtual PassRefPtr<FontData> getFontData(const FontDescription&, const AtomicString&) override;
virtual size_t fallbackFontDataCount() override;
virtual PassRefPtr<FontData> getFallbackFontData(const FontDescription&, size_t) override;
CSSSegmentedFontFace* getFontFace(const FontDescription&, const AtomicString& family);
virtual bool resolvesFamilyFor(const FontDescription&) const override;
void clearDocument();
void addFontFaceRule(const StyleRuleFontFace*);
void fontLoaded();
virtual void fontCacheInvalidated() override;
bool isEmpty() const;
virtual void registerForInvalidationCallbacks(FontSelectorClient*) override;
virtual void unregisterForInvalidationCallbacks(FontSelectorClient*) override;
Document* document() const { return m_document; }
void beginLoadingFontSoon(CachedFont*);
private:
CSSFontSelector(Document*);
void dispatchInvalidationCallbacks();
void beginLoadTimerFired(Timer<CSSFontSelector>&);
Document* m_document;
HashMap<String, std::unique_ptr<Vector<RefPtr<CSSFontFace>>>, CaseFoldingHash> m_fontFaces;
HashMap<String, std::unique_ptr<Vector<RefPtr<CSSFontFace>>>, CaseFoldingHash> m_locallyInstalledFontFaces;
HashMap<String, std::unique_ptr<HashMap<unsigned, RefPtr<CSSSegmentedFontFace>>>, CaseFoldingHash> m_fonts;
HashSet<FontSelectorClient*> m_clients;
Vector<CachedResourceHandle<CachedFont>> m_fontsToBeginLoading;
Timer<CSSFontSelector> m_beginLoadingTimer;
unsigned m_uniqueId;
unsigned m_version;
};
} // namespace WebCore
#endif // CSSFontSelector_h
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