1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/*
* Copyright (C) 2007, 2008, 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CSSFontSelector_h
#define CSSFontSelector_h
#include "CSSFontFace.h"
#include "CachedResourceHandle.h"
#include "Font.h"
#include "FontSelector.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 CSSFontFaceRule;
class CSSPrimitiveValue;
class CSSSegmentedFontFace;
class CSSValueList;
class CachedFont;
class Document;
class StyleRuleFontFace;
class CSSFontSelector final : public FontSelector {
public:
static Ref<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 FontRanges fontRangesForFamily(const FontDescription&, const AtomicString&) override;
virtual size_t fallbackFontCount() override;
virtual RefPtr<Font> fallbackFontAt(const FontDescription&, size_t) override;
CSSSegmentedFontFace* getFontFace(const FontDescription&, const AtomicString& family);
void clearDocument();
static void appendSources(CSSFontFace&, CSSValueList&, Document*, bool isInitiatingElementInUserAgentShadowTree);
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*);
static String familyNameFromPrimitive(const CSSPrimitiveValue&);
private:
explicit CSSFontSelector(Document&);
void dispatchInvalidationCallbacks();
void beginLoadTimerFired();
void registerLocalFontFacesForFamily(const String&);
Document* m_document;
HashMap<String, Vector<Ref<CSSFontFace>>, ASCIICaseInsensitiveHash> m_fontFaces;
HashMap<String, Vector<Ref<CSSFontFace>>, ASCIICaseInsensitiveHash> m_locallyInstalledFontFaces;
HashMap<String, HashMap<unsigned, std::unique_ptr<CSSSegmentedFontFace>>, ASCIICaseInsensitiveHash> m_fonts;
HashSet<FontSelectorClient*> m_clients;
Vector<CachedResourceHandle<CachedFont>> m_fontsToBeginLoading;
Timer m_beginLoadingTimer;
unsigned m_uniqueId;
unsigned m_version;
};
} // namespace WebCore
#endif // CSSFontSelector_h
|
