1/*
2 * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "CachedResource.h"
29#include "CachedResourceClient.h"
30#include "Font.h"
31#include "TextFlags.h"
32
33namespace WebCore {
34
35class CachedResourceLoader;
36class FontDescription;
37class FontPlatformData;
38struct FontSelectionSpecifiedCapabilities;
39class SVGDocument;
40class SVGFontElement;
41struct FontCustomPlatformData;
42
43template <typename T> class FontTaggedSettings;
44typedef FontTaggedSettings<int> FontFeatureSettings;
45
46class CachedFont : public CachedResource {
47public:
48 CachedFont(CachedResourceRequest&&, const PAL::SessionID&, const CookieJar*, Type = Type::FontResource);
49 virtual ~CachedFont();
50
51 void beginLoadIfNeeded(CachedResourceLoader&);
52 bool stillNeedsLoad() const override { return !m_loadInitiated; }
53
54 virtual bool ensureCustomFontData(const AtomicString& remoteURI);
55 static std::unique_ptr<FontCustomPlatformData> createCustomFontData(SharedBuffer&, const String& itemInCollection, bool& wrapping);
56 static FontPlatformData platformDataFromCustomData(FontCustomPlatformData&, const FontDescription&, bool bold, bool italic, const FontFeatureSettings&, const FontVariantSettings&, FontSelectionSpecifiedCapabilities);
57
58 virtual RefPtr<Font> createFont(const FontDescription&, const AtomicString& remoteURI, bool syntheticBold, bool syntheticItalic, const FontFeatureSettings&, const FontVariantSettings&, FontSelectionSpecifiedCapabilities);
59
60protected:
61 FontPlatformData platformDataFromCustomData(const FontDescription&, bool bold, bool italic, const FontFeatureSettings&, const FontVariantSettings&, FontSelectionSpecifiedCapabilities);
62
63 bool ensureCustomFontData(SharedBuffer* data);
64
65private:
66 String calculateItemInCollection() const;
67
68 void checkNotify() override;
69 bool mayTryReplaceEncodedData() const override;
70
71 void load(CachedResourceLoader&) override;
72 NO_RETURN_DUE_TO_ASSERT void setBodyDataFrom(const CachedResource&) final { ASSERT_NOT_REACHED(); }
73
74 void didAddClient(CachedResourceClient&) override;
75 void finishLoading(SharedBuffer*) override;
76
77 void allClientsRemoved() override;
78
79 bool m_loadInitiated;
80 bool m_hasCreatedFontDataWrappingResource;
81
82 std::unique_ptr<FontCustomPlatformData> m_fontCustomPlatformData;
83
84 friend class MemoryCache;
85};
86
87} // namespace WebCore
88
89SPECIALIZE_TYPE_TRAITS_CACHED_RESOURCE(CachedFont, CachedResource::Type::FontResource)
90