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Side by Side Diff: third_party/WebKit/Source/core/css/CSSSegmentedFontFace.cpp

Issue 1773633003: [DO NOT COMMIT] Trace events for layout-based First Meaningful Paint detection (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: rebase Created 4 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) 2008 Apple Inc. All rights reserved. 2 * Copyright (C) 2008 Apple Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
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126 ASSERT(!faceFontData->isSegmented()); 126 ASSERT(!faceFontData->isSegmented());
127 fontData->appendFace(FontDataForRangeSet(faceFontData.release(), (*i t)->cssFontFace()->ranges())); 127 fontData->appendFace(FontDataForRangeSet(faceFontData.release(), (*i t)->cssFontFace()->ranges()));
128 } 128 }
129 } 129 }
130 if (fontData->numFaces()) 130 if (fontData->numFaces())
131 return fontData; // No release, we have a reference to an object in the cache which should retain the ref count it has. 131 return fontData; // No release, we have a reference to an object in the cache which should retain the ref count it has.
132 132
133 return nullptr; 133 return nullptr;
134 } 134 }
135 135
136 void CSSSegmentedFontFace::willUseFontData(const FontDescription& fontDescriptio n, UChar32 character) 136 void CSSSegmentedFontFace::willUseFontData(const FontDescription& fontDescriptio n, const String& text)
137 { 137 {
138 for (FontFaceList::reverse_iterator it = m_fontFaces.rbegin(); it != m_fontF aces.rend(); ++it) { 138 for (FontFaceList::reverse_iterator it = m_fontFaces.rbegin(); it != m_fontF aces.rend(); ++it) {
139 if ((*it)->loadStatus() != FontFace::Unloaded) 139 if ((*it)->willUseFontData(fontDescription, text))
140 break;
141 if ((*it)->cssFontFace()->maybeScheduleFontLoad(fontDescription, charact er))
142 break; 140 break;
143 } 141 }
144 } 142 }
145 143
146 void CSSSegmentedFontFace::willUseRange(const blink::FontDescription& fontDescri ption, const blink::FontDataForRangeSet& rangeSet) 144 void CSSSegmentedFontFace::willUseRange(const blink::FontDescription& fontDescri ption, const blink::FontDataForRangeSet& rangeSet)
147 { 145 {
148 // Iterating backwards since later defined unicode-range faces override 146 // Iterating backwards since later defined unicode-range faces override
149 // previously defined ones, according to the CSS3 fonts module. 147 // previously defined ones, according to the CSS3 fonts module.
150 // https://drafts.csswg.org/css-fonts/#composite-fonts 148 // https://drafts.csswg.org/css-fonts/#composite-fonts
151 for (FontFaceList::reverse_iterator it = m_fontFaces.rbegin(); it != m_fontF aces.rend(); ++it) { 149 for (FontFaceList::reverse_iterator it = m_fontFaces.rbegin(); it != m_fontF aces.rend(); ++it) {
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172 } 170 }
173 } 171 }
174 172
175 DEFINE_TRACE(CSSSegmentedFontFace) 173 DEFINE_TRACE(CSSSegmentedFontFace)
176 { 174 {
177 visitor->trace(m_fontSelector); 175 visitor->trace(m_fontSelector);
178 visitor->trace(m_fontFaces); 176 visitor->trace(m_fontFaces);
179 } 177 }
180 178
181 } // namespace blink 179 } // namespace blink
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