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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), |
Kunihiko Sakamoto
2016/10/12 06:10:14
Would this change current behavior when WebFontsCa
Shao-Chuan Lee
2016/10/12 06:50:58
If the flag is off then isCacheAwareLoadingActivat
Kunihiko Sakamoto
2016/10/12 08:56:30
Ah OK, I missed that part.
| |
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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147 void RemoteFontFaceSource::fontLoadLongLimitExceeded(FontResource*) { | 151 void RemoteFontFaceSource::fontLoadLongLimitExceeded(FontResource*) { |
148 if (m_display == FontDisplayBlock || | 152 if (m_display == FontDisplayBlock || |
149 (!m_isInterventionTriggered && m_display == FontDisplayAuto)) | 153 (!m_isInterventionTriggered && m_display == FontDisplayAuto)) |
150 switchToSwapPeriod(); | 154 switchToSwapPeriod(); |
151 else if (m_display == FontDisplayFallback) | 155 else if (m_display == FontDisplayFallback) |
152 switchToFailurePeriod(); | 156 switchToFailurePeriod(); |
153 | 157 |
154 m_histograms.longLimitExceeded(m_isInterventionTriggered); | 158 m_histograms.longLimitExceeded(m_isInterventionTriggered); |
155 } | 159 } |
156 | 160 |
161 void RemoteFontFaceSource::willReloadAfterDiskCacheMiss(const FontResource*) { | |
162 if (m_display == FontDisplaySwap) | |
163 switchToSwapPeriod(); | |
164 } | |
165 | |
157 void RemoteFontFaceSource::switchToSwapPeriod() { | 166 void RemoteFontFaceSource::switchToSwapPeriod() { |
158 ASSERT(m_period == BlockPeriod); | 167 ASSERT(m_period == BlockPeriod); |
159 m_period = SwapPeriod; | 168 m_period = SwapPeriod; |
160 | 169 |
161 pruneTable(); | 170 pruneTable(); |
162 if (m_face) { | 171 if (m_face) { |
163 m_fontSelector->fontFaceInvalidated(); | 172 m_fontSelector->fontFaceInvalidated(); |
164 m_face->didBecomeVisibleFallback(this); | 173 m_face->didBecomeVisibleFallback(this); |
165 } | 174 } |
166 | 175 |
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419 return Miss; | 428 return Miss; |
420 case FromUnknown: | 429 case FromUnknown: |
421 // Fall through. | 430 // Fall through. |
422 default: | 431 default: |
423 NOTREACHED(); | 432 NOTREACHED(); |
424 } | 433 } |
425 return Miss; | 434 return Miss; |
426 } | 435 } |
427 | 436 |
428 } // namespace blink | 437 } // namespace blink |
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