#ifndef CSSFontFace_h
#define CSSFontFace_h
#include "CSSFontFaceRule.h"
#include "CSSFontFaceSource.h"
#include "FontTraitsMask.h"
#include <memory>
#include <wtf/Forward.h>
#include <wtf/HashSet.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
namespace WebCore {
class CSSSegmentedFontFace;
class FontDescription;
class SimpleFontData;
class CSSFontFace : public RefCounted<CSSFontFace> {
public:
static PassRefPtr<CSSFontFace> create(FontTraitsMask traitsMask, PassRefPtr<CSSFontFaceRule> rule, bool isLocalFallback = false) { return adoptRef(new CSSFontFace(traitsMask, rule, isLocalFallback)); }
FontTraitsMask traitsMask() const { return m_traitsMask; }
struct UnicodeRange;
void addRange(UChar32 from, UChar32 to) { m_ranges.append(UnicodeRange(from, to)); }
const Vector<UnicodeRange>& ranges() const { return m_ranges; }
void addedToSegmentedFontFace(CSSSegmentedFontFace*);
void removedFromSegmentedFontFace(CSSSegmentedFontFace*);
bool isLoaded() const;
bool isValid() const;
bool isLocalFallback() const { return m_isLocalFallback; }
void addSource(std::unique_ptr<CSSFontFaceSource>);
void fontLoaded(CSSFontFaceSource*);
PassRefPtr<SimpleFontData> getFontData(const FontDescription&, bool syntheticBold, bool syntheticItalic);
struct UnicodeRange {
UnicodeRange(UChar32 from, UChar32 to)
: m_from(from)
, m_to(to)
{
}
UChar32 from() const { return m_from; }
UChar32 to() const { return m_to; }
private:
UChar32 m_from;
UChar32 m_to;
};
#if ENABLE(SVG_FONTS)
bool hasSVGFontFaceSource() const;
#endif
#if ENABLE(FONT_LOAD_EVENTS)
enum LoadState { NotLoaded, Loading, Loaded, Error };
LoadState loadState() const { return m_loadState; }
#endif
private:
CSSFontFace(FontTraitsMask traitsMask, PassRefPtr<CSSFontFaceRule> rule, bool isLocalFallback)
: m_traitsMask(traitsMask)
, m_activeSource(0)
, m_isLocalFallback(isLocalFallback)
#if ENABLE(FONT_LOAD_EVENTS)
, m_loadState(isLocalFallback ? Loaded : NotLoaded)
, m_rule(rule)
#endif
{
UNUSED_PARAM(rule);
}
FontTraitsMask m_traitsMask;
Vector<UnicodeRange> m_ranges;
HashSet<CSSSegmentedFontFace*> m_segmentedFontFaces;
Vector<std::unique_ptr<CSSFontFaceSource>> m_sources;
CSSFontFaceSource* m_activeSource;
bool m_isLocalFallback;
#if ENABLE(FONT_LOAD_EVENTS)
LoadState m_loadState;
RefPtr<CSSFontFaceRule> m_rule;
void notifyFontLoader(LoadState);
void notifyLoadingDone();
#endif
};
}
#endif