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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_display), | 64 m_display), |
65 m_isInterventionTriggered(false) { | 65 m_isInterventionTriggered(false) { |
66 ThreadState::current()->registerPreFinalizer(this); | 66 ThreadState::current()->registerPreFinalizer(this); |
67 m_font->addClient(this); | 67 m_font->addClient(this); |
68 | 68 |
69 if (shouldTriggerWebFontsIntervention()) { | 69 if (shouldTriggerWebFontsIntervention()) { |
70 m_isInterventionTriggered = true; | 70 m_isInterventionTriggered = true; |
71 m_period = SwapPeriod; | 71 m_period = SwapPeriod; |
72 m_fontSelector->document()->addConsoleMessage(ConsoleMessage::create( | 72 m_fontSelector->document()->addConsoleMessage(ConsoleMessage::create( |
73 OtherMessageSource, InfoMessageLevel, | 73 OtherMessageSource, InfoMessageLevel, |
74 "Slow network is detected. Fallback font will be used while loading: " + | 74 "Slow network is detected. Fallback font will be used while loading: " + |
75 m_font->url().elidedString())); | 75 m_font->url().elidedString())); |
76 } | 76 } |
| 77 |
| 78 if (m_display == FontDisplaySwap && |
| 79 !m_font->resourceRequest().isCacheAwareLoadingActivated()) |
| 80 m_period = SwapPeriod; |
77 } | 81 } |
78 | 82 |
79 RemoteFontFaceSource::~RemoteFontFaceSource() {} | 83 RemoteFontFaceSource::~RemoteFontFaceSource() {} |
80 | 84 |
81 void RemoteFontFaceSource::dispose() { | 85 void RemoteFontFaceSource::dispose() { |
82 m_font->removeClient(this); | 86 m_font->removeClient(this); |
83 m_font = nullptr; | 87 m_font = nullptr; |
84 pruneTable(); | 88 pruneTable(); |
85 } | 89 } |
86 | 90 |
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154 | 158 |
155 if (m_display == FontDisplayBlock || | 159 if (m_display == FontDisplayBlock || |
156 (!m_isInterventionTriggered && m_display == FontDisplayAuto)) | 160 (!m_isInterventionTriggered && m_display == FontDisplayAuto)) |
157 switchToSwapPeriod(); | 161 switchToSwapPeriod(); |
158 else if (m_display == FontDisplayFallback) | 162 else if (m_display == FontDisplayFallback) |
159 switchToFailurePeriod(); | 163 switchToFailurePeriod(); |
160 | 164 |
161 m_histograms.longLimitExceeded(m_isInterventionTriggered); | 165 m_histograms.longLimitExceeded(m_isInterventionTriggered); |
162 } | 166 } |
163 | 167 |
| 168 void RemoteFontFaceSource::willReloadAfterDiskCacheMiss(const FontResource*) { |
| 169 if (m_display == FontDisplaySwap) |
| 170 switchToSwapPeriod(); |
| 171 } |
| 172 |
164 void RemoteFontFaceSource::switchToSwapPeriod() { | 173 void RemoteFontFaceSource::switchToSwapPeriod() { |
165 ASSERT(m_period == BlockPeriod); | 174 ASSERT(m_period == BlockPeriod); |
166 m_period = SwapPeriod; | 175 m_period = SwapPeriod; |
167 | 176 |
168 pruneTable(); | 177 pruneTable(); |
169 if (m_face) { | 178 if (m_face) { |
170 m_fontSelector->fontFaceInvalidated(); | 179 m_fontSelector->fontFaceInvalidated(); |
171 m_face->didBecomeVisibleFallback(this); | 180 m_face->didBecomeVisibleFallback(this); |
172 } | 181 } |
173 | 182 |
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230 return nullptr; | 239 return nullptr; |
231 } | 240 } |
232 RefPtr<CSSCustomFontData> cssFontData = CSSCustomFontData::create( | 241 RefPtr<CSSCustomFontData> cssFontData = CSSCustomFontData::create( |
233 this, m_period == BlockPeriod ? CSSCustomFontData::InvisibleFallback | 242 this, m_period == BlockPeriod ? CSSCustomFontData::InvisibleFallback |
234 : CSSCustomFontData::VisibleFallback); | 243 : CSSCustomFontData::VisibleFallback); |
235 return SimpleFontData::create(temporaryFont->platformData(), cssFontData); | 244 return SimpleFontData::create(temporaryFont->platformData(), cssFontData); |
236 } | 245 } |
237 | 246 |
238 void RemoteFontFaceSource::beginLoadIfNeeded() { | 247 void RemoteFontFaceSource::beginLoadIfNeeded() { |
239 if (m_fontSelector->document() && m_font->stillNeedsLoad()) { | 248 if (m_fontSelector->document() && m_font->stillNeedsLoad()) { |
| 249 // TODO(shaochuan): Cache-aware loading may be deactivated in startLoad(), |
| 250 // set |m_period| to correct value if deactivated. crbug.com/632580 |
| 251 bool wasCacheAwareLoadingActivated = |
| 252 m_font->resourceRequest().isCacheAwareLoadingActivated(); |
240 m_fontSelector->document()->fetcher()->startLoad(m_font); | 253 m_fontSelector->document()->fetcher()->startLoad(m_font); |
| 254 if (m_display == FontDisplaySwap && wasCacheAwareLoadingActivated && |
| 255 !m_font->resourceRequest().isCacheAwareLoadingActivated()) |
| 256 switchToSwapPeriod(); |
| 257 |
241 if (!m_font->isLoaded()) | 258 if (!m_font->isLoaded()) |
242 m_font->startLoadLimitTimers(); | 259 m_font->startLoadLimitTimers(); |
243 m_histograms.loadStarted(); | 260 m_histograms.loadStarted(); |
244 } | 261 } |
245 | 262 |
246 if (m_face) | 263 if (m_face) |
247 m_face->didBeginLoad(); | 264 m_face->didBeginLoad(); |
248 } | 265 } |
249 | 266 |
250 DEFINE_TRACE(RemoteFontFaceSource) { | 267 DEFINE_TRACE(RemoteFontFaceSource) { |
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432 return Miss; | 449 return Miss; |
433 case FromUnknown: | 450 case FromUnknown: |
434 // Fall through. | 451 // Fall through. |
435 default: | 452 default: |
436 NOTREACHED(); | 453 NOTREACHED(); |
437 } | 454 } |
438 return Miss; | 455 return Miss; |
439 } | 456 } |
440 | 457 |
441 } // namespace blink | 458 } // namespace blink |
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