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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2001 Dirk Mueller (mueller@kde.org) | 4 * (C) 2001 Dirk Mueller (mueller@kde.org) |
5 * (C) 2006 Alexey Proskuryakov (ap@webkit.org) | 5 * (C) 2006 Alexey Proskuryakov (ap@webkit.org) |
6 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All | 6 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All |
7 * rights reserved. | 7 * rights reserved. |
8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. | 8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. |
9 * (http://www.torchmobile.com/) | 9 * (http://www.torchmobile.com/) |
10 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) | 10 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) |
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228 // Aliases by callers. | 228 // Aliases by callers. |
229 // Clone a node: https://dom.spec.whatwg.org/#concept-node-clone | 229 // Clone a node: https://dom.spec.whatwg.org/#concept-node-clone |
230 CreatedByCloneNode = AsynchronousCustomElements, | 230 CreatedByCloneNode = AsynchronousCustomElements, |
231 CreatedByImportNode = CreatedByCloneNode, | 231 CreatedByImportNode = CreatedByCloneNode, |
232 // https://dom.spec.whatwg.org/#dom-document-createelement | 232 // https://dom.spec.whatwg.org/#dom-document-createelement |
233 CreatedByCreateElement = SynchronousCustomElements, | 233 CreatedByCreateElement = SynchronousCustomElements, |
234 // https://html.spec.whatwg.org/#create-an-element-for-the-token | 234 // https://html.spec.whatwg.org/#create-an-element-for-the-token |
235 CreatedByFragmentParser = CreatedByParser | AsynchronousCustomElements, | 235 CreatedByFragmentParser = CreatedByParser | AsynchronousCustomElements, |
236 }; | 236 }; |
237 | 237 |
238 // Collect data about deferred loading of offscreen cross-origin documents. All | |
239 // cross-origin documents log Created. Only those that would load log a reason. | |
240 // We can then see the % of cross-origin documents that never have to load. | |
241 // See https://crbug.com/635105. | |
242 // Logged to UMA, don't re-arrange entries without creating a new histogram. | |
243 enum WouldLoadReason { | |
244 Created, | |
245 // If outer and inner frames aren't in the same process we can't determine | |
246 // if the inner frame is visible, so just load it. | |
dcheng
2016/10/13 23:00:43
Maybe add a TODO pointing to https://crbug.com/650
dgrogan
2016/10/14 21:45:08
Done.
| |
247 WouldLoadOutOfProcess, | |
248 // The next four indicate frames that are probably used for cross-origin | |
249 // communication. | |
250 WouldLoadDisplayNone, | |
251 WouldLoadZeroByZero, | |
252 WouldLoadAbove, | |
253 WouldLoadLeft, | |
254 // We have to load documents in visible frames. | |
255 WouldLoadVisible, | |
256 | |
257 WouldLoadReasonEnd | |
258 }; | |
259 | |
238 using DocumentClassFlags = unsigned char; | 260 using DocumentClassFlags = unsigned char; |
239 | 261 |
240 class CORE_EXPORT Document : public ContainerNode, | 262 class CORE_EXPORT Document : public ContainerNode, |
241 public TreeScope, | 263 public TreeScope, |
242 public SecurityContext, | 264 public SecurityContext, |
243 public ExecutionContext, | 265 public ExecutionContext, |
244 public Supplementable<Document> { | 266 public Supplementable<Document> { |
245 DEFINE_WRAPPERTYPEINFO(); | 267 DEFINE_WRAPPERTYPEINFO(); |
246 USING_GARBAGE_COLLECTED_MIXIN(Document); | 268 USING_GARBAGE_COLLECTED_MIXIN(Document); |
247 | 269 |
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1273 } | 1295 } |
1274 | 1296 |
1275 Element* rootScroller() const; | 1297 Element* rootScroller() const; |
1276 void setRootScroller(Element*, ExceptionState&); | 1298 void setRootScroller(Element*, ExceptionState&); |
1277 RootScrollerController* rootScrollerController() const { | 1299 RootScrollerController* rootScrollerController() const { |
1278 return m_rootScrollerController.get(); | 1300 return m_rootScrollerController.get(); |
1279 } | 1301 } |
1280 | 1302 |
1281 bool isInMainFrame() const; | 1303 bool isInMainFrame() const; |
1282 | 1304 |
1283 void onVisibilityMaybeChanged(bool visible); | 1305 void wouldLoadBecause(WouldLoadReason); |
1306 WouldLoadReason wouldLoadReason() { return m_wouldLoadReason; } | |
1284 | 1307 |
1285 PropertyRegistry* propertyRegistry(); | 1308 PropertyRegistry* propertyRegistry(); |
1286 | 1309 |
1287 protected: | 1310 protected: |
1288 Document(const DocumentInit&, DocumentClassFlags = DefaultDocumentClass); | 1311 Document(const DocumentInit&, DocumentClassFlags = DefaultDocumentClass); |
1289 | 1312 |
1290 void didUpdateSecurityOrigin() final; | 1313 void didUpdateSecurityOrigin() final; |
1291 | 1314 |
1292 void clearXMLVersion() { m_xmlVersion = String(); } | 1315 void clearXMLVersion() { m_xmlVersion = String(); } |
1293 | 1316 |
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1629 Member<IntersectionObserverController> m_intersectionObserverController; | 1652 Member<IntersectionObserverController> m_intersectionObserverController; |
1630 Member<NodeIntersectionObserverData> m_intersectionObserverData; | 1653 Member<NodeIntersectionObserverData> m_intersectionObserverData; |
1631 Member<ResizeObserverController> m_resizeObserverController; | 1654 Member<ResizeObserverController> m_resizeObserverController; |
1632 | 1655 |
1633 int m_nodeCount; | 1656 int m_nodeCount; |
1634 | 1657 |
1635 bool m_mayContainV0Shadow = false; | 1658 bool m_mayContainV0Shadow = false; |
1636 | 1659 |
1637 Member<SnapCoordinator> m_snapCoordinator; | 1660 Member<SnapCoordinator> m_snapCoordinator; |
1638 | 1661 |
1639 bool m_visibilityWasLogged; | 1662 WouldLoadReason m_wouldLoadReason; |
1640 | 1663 |
1641 Member<PropertyRegistry> m_propertyRegistry; | 1664 Member<PropertyRegistry> m_propertyRegistry; |
1642 }; | 1665 }; |
1643 | 1666 |
1644 extern template class CORE_EXTERN_TEMPLATE_EXPORT Supplement<Document>; | 1667 extern template class CORE_EXTERN_TEMPLATE_EXPORT Supplement<Document>; |
1645 | 1668 |
1646 inline bool Document::shouldOverrideLegacyDescription( | 1669 inline bool Document::shouldOverrideLegacyDescription( |
1647 ViewportDescription::Type origin) const { | 1670 ViewportDescription::Type origin) const { |
1648 // The different (legacy) meta tags have different priorities based on the | 1671 // The different (legacy) meta tags have different priorities based on the |
1649 // type regardless of which order they appear in the DOM. The priority is | 1672 // type regardless of which order they appear in the DOM. The priority is |
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1686 DEFINE_TYPE_CASTS(TreeScope, Document, document, true, true); | 1709 DEFINE_TYPE_CASTS(TreeScope, Document, document, true, true); |
1687 | 1710 |
1688 } // namespace blink | 1711 } // namespace blink |
1689 | 1712 |
1690 #ifndef NDEBUG | 1713 #ifndef NDEBUG |
1691 // Outside the WebCore namespace for ease of invocation from gdb. | 1714 // Outside the WebCore namespace for ease of invocation from gdb. |
1692 CORE_EXPORT void showLiveDocumentInstances(); | 1715 CORE_EXPORT void showLiveDocumentInstances(); |
1693 #endif | 1716 #endif |
1694 | 1717 |
1695 #endif // Document_h | 1718 #endif // Document_h |
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