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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 CSSFontSelector;
41 class FontDescription;
42 class RemoteFontFaceSource;
44 class StyleRuleFontFace;
46 class CSSFontFace FINAL : public NoBaseWillBeGarbageCollectedFinalized<CSSFontFace> {
49 class UnicodeRangeSet;
51 CSSFontFace(FontFace* fontFace, Vector<UnicodeRange>& ranges)
53 , m_segmentedFontFace(nullptr)
54 , m_fontFace(fontFace)
59 FontFace* fontFace() const { return m_fontFace; }
61 UnicodeRangeSet& ranges() { return m_ranges; }
63 void setSegmentedFontFace(CSSSegmentedFontFace*);
64 void clearSegmentedFontFace() { m_segmentedFontFace = nullptr; }
66 bool isValid() const { return !m_sources.isEmpty(); }
68 void addSource(PassOwnPtrWillBeRawPtr<CSSFontFaceSource>);
71 void fontLoaded(RemoteFontFaceSource*);
72 void fontLoadWaitLimitExceeded(RemoteFontFaceSource*);
74 PassRefPtr<SimpleFontData> getFontData(const FontDescription&);
77 UnicodeRange(UChar32 from, UChar32 to)
83 UChar32 from() const { return m_from; }
84 UChar32 to() const { return m_to; }
85 bool contains(UChar32 c) const { return m_from <= c && c <= m_to; }
86 bool operator<(const UnicodeRange& other) const { return m_from < other.m_from; }
87 bool operator<(UChar32 c) const { return m_to < c; }
94 class UnicodeRangeSet {
96 explicit UnicodeRangeSet(const Vector<UnicodeRange>&);
97 bool contains(UChar32) const;
98 bool intersectsWith(const String&) const;
99 bool isEntireRange() const { return m_ranges.isEmpty(); }
100 size_t size() const { return m_ranges.size(); }
101 const UnicodeRange& rangeAt(size_t i) const { return m_ranges[i]; }
103 Vector<UnicodeRange> m_ranges; // If empty, represents the whole code space.
106 FontFace::LoadStatus loadStatus() const { return m_fontFace->loadStatus(); }
107 bool maybeScheduleFontLoad(const FontDescription&, UChar32);
109 void load(const FontDescription&);
111 bool hadBlankText() { return isValid() && m_sources.first()->hadBlankText(); }
113 void trace(Visitor*);
116 void setLoadStatus(FontFace::LoadStatus);
118 UnicodeRangeSet m_ranges;
119 RawPtrWillBeMember<CSSSegmentedFontFace> m_segmentedFontFace;
120 WillBeHeapDeque<OwnPtrWillBeMember<CSSFontFaceSource> > m_sources;
121 RawPtrWillBeMember<FontFace> m_fontFace;