#ifndef CSSFontSelector_h
#define CSSFontSelector_h
#include "CachedResourceHandle.h"
#include "FontSelector.h"
#include "Timer.h"
#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;
CSSSegmentedFontFace* getFontFace(const FontDescription&, const AtomicString& family);
virtual bool resolvesFamilyFor(const FontDescription&) const OVERRIDE;
#if PLATFORM(IOS)
virtual size_t fallbackFontDataCount() OVERRIDE;
virtual PassRefPtr<FontData> getFallbackFontData(const FontDescription&, size_t) OVERRIDE;
#endif
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, OwnPtr<Vector<RefPtr<CSSFontFace> > >, CaseFoldingHash> m_fontFaces;
HashMap<String, OwnPtr<Vector<RefPtr<CSSFontFace> > >, CaseFoldingHash> m_locallyInstalledFontFaces;
HashMap<String, OwnPtr<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;
};
}
#endif // CSSFontSelector_h