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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/css/RemoteFontFaceSource.h" | 5 #include "core/css/RemoteFontFaceSource.h" |
6 | 6 |
7 #include "core/css/CSSCustomFontData.h" | 7 #include "core/css/CSSCustomFontData.h" |
8 #include "core/css/CSSFontFace.h" | 8 #include "core/css/CSSFontFace.h" |
9 #include "core/css/CSSFontSelector.h" | 9 #include "core/css/CSSFontSelector.h" |
10 #include "core/dom/Document.h" | 10 #include "core/dom/Document.h" |
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49 } | 49 } |
50 | 50 |
51 } // namespace | 51 } // namespace |
52 | 52 |
53 RemoteFontFaceSource::RemoteFontFaceSource(FontResource* font, | 53 RemoteFontFaceSource::RemoteFontFaceSource(FontResource* font, |
54 CSSFontSelector* fontSelector, | 54 CSSFontSelector* fontSelector, |
55 FontDisplay display) | 55 FontDisplay display) |
56 : m_font(font), | 56 : m_font(font), |
57 m_fontSelector(fontSelector), | 57 m_fontSelector(fontSelector), |
58 m_display(display), | 58 m_display(display), |
59 m_period(display == FontDisplaySwap ? SwapPeriod : BlockPeriod), | 59 m_period(BlockPeriod), |
60 m_histograms(font->url().protocolIsData() | 60 m_histograms(font->url().protocolIsData() |
61 ? FontLoadHistograms::FromDataURL | 61 ? FontLoadHistograms::FromDataURL |
62 : font->isLoaded() ? FontLoadHistograms::FromMemoryCache | 62 : font->isLoaded() ? FontLoadHistograms::FromMemoryCache |
63 : FontLoadHistograms::FromUnknown), | 63 : FontLoadHistograms::FromUnknown), |
64 m_isInterventionTriggered(false) { | 64 m_isInterventionTriggered(false) { |
65 ThreadState::current()->registerPreFinalizer(this); | 65 ThreadState::current()->registerPreFinalizer(this); |
66 m_font->addClient(this); | 66 m_font->addClient(this); |
67 | 67 |
68 if (shouldTriggerWebFontsIntervention()) { | 68 if (shouldTriggerWebFontsIntervention()) { |
69 m_isInterventionTriggered = true; | 69 m_isInterventionTriggered = true; |
70 m_period = SwapPeriod; | 70 m_period = SwapPeriod; |
71 m_fontSelector->document()->addConsoleMessage(ConsoleMessage::create( | 71 m_fontSelector->document()->addConsoleMessage(ConsoleMessage::create( |
72 OtherMessageSource, InfoMessageLevel, | 72 OtherMessageSource, InfoMessageLevel, |
73 "Slow network is detected. Fallback font will be used while loading: " + | 73 "Slow network is detected. Fallback font will be used while loading: " + |
74 m_font->url().elidedString())); | 74 m_font->url().elidedString())); |
75 } | 75 } |
| 76 |
| 77 if (m_display == FontDisplaySwap && |
| 78 !m_font->resourceRequest().isCacheAwareLoadingActivated()) |
| 79 m_period = SwapPeriod; |
76 } | 80 } |
77 | 81 |
78 RemoteFontFaceSource::~RemoteFontFaceSource() {} | 82 RemoteFontFaceSource::~RemoteFontFaceSource() {} |
79 | 83 |
80 void RemoteFontFaceSource::dispose() { | 84 void RemoteFontFaceSource::dispose() { |
81 m_font->removeClient(this); | 85 m_font->removeClient(this); |
82 m_font = nullptr; | 86 m_font = nullptr; |
83 pruneTable(); | 87 pruneTable(); |
84 } | 88 } |
85 | 89 |
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151 | 155 |
152 if (m_display == FontDisplayBlock || | 156 if (m_display == FontDisplayBlock || |
153 (!m_isInterventionTriggered && m_display == FontDisplayAuto)) | 157 (!m_isInterventionTriggered && m_display == FontDisplayAuto)) |
154 switchToSwapPeriod(); | 158 switchToSwapPeriod(); |
155 else if (m_display == FontDisplayFallback) | 159 else if (m_display == FontDisplayFallback) |
156 switchToFailurePeriod(); | 160 switchToFailurePeriod(); |
157 | 161 |
158 m_histograms.longLimitExceeded(m_isInterventionTriggered); | 162 m_histograms.longLimitExceeded(m_isInterventionTriggered); |
159 } | 163 } |
160 | 164 |
| 165 void RemoteFontFaceSource::willReloadAfterDiskCacheMiss(const FontResource*) { |
| 166 if (m_display == FontDisplaySwap) |
| 167 switchToSwapPeriod(); |
| 168 } |
| 169 |
161 void RemoteFontFaceSource::switchToSwapPeriod() { | 170 void RemoteFontFaceSource::switchToSwapPeriod() { |
162 ASSERT(m_period == BlockPeriod); | 171 ASSERT(m_period == BlockPeriod); |
163 m_period = SwapPeriod; | 172 m_period = SwapPeriod; |
164 | 173 |
165 pruneTable(); | 174 pruneTable(); |
166 if (m_face) { | 175 if (m_face) { |
167 m_fontSelector->fontFaceInvalidated(); | 176 m_fontSelector->fontFaceInvalidated(); |
168 m_face->didBecomeVisibleFallback(this); | 177 m_face->didBecomeVisibleFallback(this); |
169 } | 178 } |
170 | 179 |
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227 return nullptr; | 236 return nullptr; |
228 } | 237 } |
229 RefPtr<CSSCustomFontData> cssFontData = CSSCustomFontData::create( | 238 RefPtr<CSSCustomFontData> cssFontData = CSSCustomFontData::create( |
230 this, m_period == BlockPeriod ? CSSCustomFontData::InvisibleFallback | 239 this, m_period == BlockPeriod ? CSSCustomFontData::InvisibleFallback |
231 : CSSCustomFontData::VisibleFallback); | 240 : CSSCustomFontData::VisibleFallback); |
232 return SimpleFontData::create(temporaryFont->platformData(), cssFontData); | 241 return SimpleFontData::create(temporaryFont->platformData(), cssFontData); |
233 } | 242 } |
234 | 243 |
235 void RemoteFontFaceSource::beginLoadIfNeeded() { | 244 void RemoteFontFaceSource::beginLoadIfNeeded() { |
236 if (m_fontSelector->document() && m_font->stillNeedsLoad()) { | 245 if (m_fontSelector->document() && m_font->stillNeedsLoad()) { |
| 246 // TODO(shaochuan): Cache-aware loading may be deactivated in startLoad(), |
| 247 // set |m_period| to correct value if deactivated. crbug.com/632580 |
| 248 bool wasCacheAwareLoadingActivated = |
| 249 m_font->resourceRequest().isCacheAwareLoadingActivated(); |
237 m_fontSelector->document()->fetcher()->startLoad(m_font); | 250 m_fontSelector->document()->fetcher()->startLoad(m_font); |
| 251 if (m_display == FontDisplaySwap && wasCacheAwareLoadingActivated && |
| 252 !m_font->resourceRequest().isCacheAwareLoadingActivated()) |
| 253 switchToSwapPeriod(); |
| 254 |
238 if (!m_font->isLoaded()) | 255 if (!m_font->isLoaded()) |
239 m_font->startLoadLimitTimers(); | 256 m_font->startLoadLimitTimers(); |
240 m_histograms.loadStarted(); | 257 m_histograms.loadStarted(); |
241 } | 258 } |
242 | 259 |
243 if (m_face) | 260 if (m_face) |
244 m_face->didBeginLoad(); | 261 m_face->didBeginLoad(); |
245 } | 262 } |
246 | 263 |
247 DEFINE_TRACE(RemoteFontFaceSource) { | 264 DEFINE_TRACE(RemoteFontFaceSource) { |
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424 return Miss; | 441 return Miss; |
425 case FromUnknown: | 442 case FromUnknown: |
426 // Fall through. | 443 // Fall through. |
427 default: | 444 default: |
428 NOTREACHED(); | 445 NOTREACHED(); |
429 } | 446 } |
430 return Miss; | 447 return Miss; |
431 } | 448 } |
432 | 449 |
433 } // namespace blink | 450 } // namespace blink |
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