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29 #include "core/css/CSSFontFaceSource.h"
30 #include "core/css/CSSSegmentedFontFace.h"
31 #include "core/css/FontFace.h"
32 #include "wtf/Deque.h"
33 #include "wtf/Forward.h"
34 #include "wtf/PassRefPtr.h"
35 #include "wtf/Vector.h"
39 class FontDescription;
40 class RemoteFontFaceSource;
43 class CSSFontFace final : public NoBaseWillBeGarbageCollectedFinalized<CSSFontFace> {
46 class UnicodeRangeSet;
48 CSSFontFace(FontFace* fontFace, Vector<UnicodeRange>& ranges)
50 , m_segmentedFontFace(nullptr)
51 , m_fontFace(fontFace)
56 FontFace* fontFace() const { return m_fontFace; }
58 UnicodeRangeSet& ranges() { return m_ranges; }
60 void setSegmentedFontFace(CSSSegmentedFontFace*);
61 void clearSegmentedFontFace() { m_segmentedFontFace = nullptr; }
63 bool isValid() const { return !m_sources.isEmpty(); }
65 void addSource(PassOwnPtrWillBeRawPtr<CSSFontFaceSource>);
68 void fontLoaded(RemoteFontFaceSource*);
69 void fontLoadWaitLimitExceeded(RemoteFontFaceSource*);
71 PassRefPtr<SimpleFontData> getFontData(const FontDescription&);
74 UnicodeRange(UChar32 from, UChar32 to)
80 UChar32 from() const { return m_from; }
81 UChar32 to() const { return m_to; }
82 bool contains(UChar32 c) const { return m_from <= c && c <= m_to; }
83 bool operator<(const UnicodeRange& other) const { return m_from < other.m_from; }
84 bool operator<(UChar32 c) const { return m_to < c; }
91 class UnicodeRangeSet {
93 explicit UnicodeRangeSet(const Vector<UnicodeRange>&);
94 bool contains(UChar32) const;
95 bool intersectsWith(const String&) const;
96 bool isEntireRange() const { return m_ranges.isEmpty(); }
97 size_t size() const { return m_ranges.size(); }
98 const UnicodeRange& rangeAt(size_t i) const { return m_ranges[i]; }
100 Vector<UnicodeRange> m_ranges; // If empty, represents the whole code space.
103 FontFace::LoadStatus loadStatus() const { return m_fontFace->loadStatus(); }
104 bool maybeScheduleFontLoad(const FontDescription&, UChar32);
106 void load(const FontDescription&);
108 bool hadBlankText() { return isValid() && m_sources.first()->hadBlankText(); }
110 void trace(Visitor*);
113 void setLoadStatus(FontFace::LoadStatus);
115 UnicodeRangeSet m_ranges;
116 RawPtrWillBeMember<CSSSegmentedFontFace> m_segmentedFontFace;
117 WillBeHeapDeque<OwnPtrWillBeMember<CSSFontFaceSource> > m_sources;
118 RawPtrWillBeMember<FontFace> m_fontFace;