#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*, bool isInitiatingElementInUserAgentShadowTree);
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&);
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 m_beginLoadingTimer;
unsigned m_uniqueId;
unsigned m_version;
};
}
#endif // CSSFontSelector_h