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comparison: dom/ipc/TabChild.h

dom/ipc/TabChild.h

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1 /* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 2; -*- */
2 /* vim: set sw=4 ts=8 et tw=80 : */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #ifndef mozilla_dom_TabChild_h
8 #define mozilla_dom_TabChild_h
9
10 #include "mozilla/dom/PBrowserChild.h"
11 #include "nsIWebNavigation.h"
12 #include "nsCOMPtr.h"
13 #include "nsAutoPtr.h"
14 #include "nsIWebBrowserChrome2.h"
15 #include "nsIEmbeddingSiteWindow.h"
16 #include "nsIWebBrowserChromeFocus.h"
17 #include "nsIDOMEventListener.h"
18 #include "nsIInterfaceRequestor.h"
19 #include "nsIWindowProvider.h"
20 #include "nsIDOMWindow.h"
21 #include "nsIDocShell.h"
22 #include "nsIInterfaceRequestorUtils.h"
23 #include "nsFrameMessageManager.h"
24 #include "nsIWebProgressListener.h"
25 #include "nsIPresShell.h"
26 #include "nsIScriptObjectPrincipal.h"
27 #include "nsWeakReference.h"
28 #include "nsITabChild.h"
29 #include "nsITooltipListener.h"
30 #include "mozilla/Attributes.h"
31 #include "mozilla/dom/TabContext.h"
32 #include "mozilla/DOMEventTargetHelper.h"
33 #include "mozilla/EventDispatcher.h"
34 #include "mozilla/EventForwards.h"
35 #include "mozilla/layers/CompositorTypes.h"
36
37 class nsICachedFileDescriptorListener;
38 class nsIDOMWindowUtils;
39
40 namespace mozilla {
41 namespace layout {
42 class RenderFrameChild;
43 }
44
45 namespace layers {
46 class ActiveElementManager;
47 }
48
49 namespace widget {
50 struct AutoCacheNativeKeyCommands;
51 }
52
53 namespace dom {
54
55 class TabChild;
56 class ClonedMessageData;
57 class TabChildBase;
58
59 class TabChildGlobal : public DOMEventTargetHelper,
60 public nsIContentFrameMessageManager,
61 public nsIScriptObjectPrincipal,
62 public nsIGlobalObject
63 {
64 public:
65 TabChildGlobal(TabChildBase* aTabChild);
66 void Init();
67 NS_DECL_ISUPPORTS_INHERITED
68 NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TabChildGlobal, DOMEventTargetHelper)
69 NS_FORWARD_SAFE_NSIMESSAGELISTENERMANAGER(mMessageManager)
70 NS_FORWARD_SAFE_NSIMESSAGESENDER(mMessageManager)
71 NS_IMETHOD SendSyncMessage(const nsAString& aMessageName,
72 JS::Handle<JS::Value> aObject,
73 JS::Handle<JS::Value> aRemote,
74 nsIPrincipal* aPrincipal,
75 JSContext* aCx,
76 uint8_t aArgc,
77 JS::MutableHandle<JS::Value> aRetval)
78 {
79 return mMessageManager
80 ? mMessageManager->SendSyncMessage(aMessageName, aObject, aRemote,
81 aPrincipal, aCx, aArgc, aRetval)
82 : NS_ERROR_NULL_POINTER;
83 }
84 NS_IMETHOD SendRpcMessage(const nsAString& aMessageName,
85 JS::Handle<JS::Value> aObject,
86 JS::Handle<JS::Value> aRemote,
87 nsIPrincipal* aPrincipal,
88 JSContext* aCx,
89 uint8_t aArgc,
90 JS::MutableHandle<JS::Value> aRetval)
91 {
92 return mMessageManager
93 ? mMessageManager->SendRpcMessage(aMessageName, aObject, aRemote,
94 aPrincipal, aCx, aArgc, aRetval)
95 : NS_ERROR_NULL_POINTER;
96 }
97 NS_IMETHOD GetContent(nsIDOMWindow** aContent) MOZ_OVERRIDE;
98 NS_IMETHOD GetDocShell(nsIDocShell** aDocShell) MOZ_OVERRIDE;
99 NS_IMETHOD Dump(const nsAString& aStr) MOZ_OVERRIDE
100 {
101 return mMessageManager ? mMessageManager->Dump(aStr) : NS_OK;
102 }
103 NS_IMETHOD PrivateNoteIntentionalCrash() MOZ_OVERRIDE;
104 NS_IMETHOD Btoa(const nsAString& aBinaryData,
105 nsAString& aAsciiBase64String) MOZ_OVERRIDE;
106 NS_IMETHOD Atob(const nsAString& aAsciiString,
107 nsAString& aBinaryData) MOZ_OVERRIDE;
108
109 NS_IMETHOD AddEventListener(const nsAString& aType,
110 nsIDOMEventListener* aListener,
111 bool aUseCapture)
112 {
113 // By default add listeners only for trusted events!
114 return DOMEventTargetHelper::AddEventListener(aType, aListener,
115 aUseCapture, false, 2);
116 }
117 using DOMEventTargetHelper::AddEventListener;
118 NS_IMETHOD AddEventListener(const nsAString& aType,
119 nsIDOMEventListener* aListener,
120 bool aUseCapture, bool aWantsUntrusted,
121 uint8_t optional_argc) MOZ_OVERRIDE
122 {
123 return DOMEventTargetHelper::AddEventListener(aType, aListener,
124 aUseCapture,
125 aWantsUntrusted,
126 optional_argc);
127 }
128
129 nsresult
130 PreHandleEvent(EventChainPreVisitor& aVisitor)
131 {
132 aVisitor.mForceContentDispatch = true;
133 return NS_OK;
134 }
135
136 virtual JSContext* GetJSContextForEventHandlers() MOZ_OVERRIDE;
137 virtual nsIPrincipal* GetPrincipal() MOZ_OVERRIDE;
138 virtual JSObject* GetGlobalJSObject() MOZ_OVERRIDE;
139
140 nsCOMPtr<nsIContentFrameMessageManager> mMessageManager;
141 nsRefPtr<TabChildBase> mTabChild;
142 };
143
144 class ContentListener MOZ_FINAL : public nsIDOMEventListener
145 {
146 public:
147 ContentListener(TabChild* aTabChild) : mTabChild(aTabChild) {}
148 NS_DECL_ISUPPORTS
149 NS_DECL_NSIDOMEVENTLISTENER
150 protected:
151 TabChild* mTabChild;
152 };
153
154 // This is base clase which helps to share Viewport and touch related functionality
155 // between b2g/android FF/embedlite clients implementation.
156 // It make sense to place in this class all helper functions, and functionality which could be shared between
157 // Cross-process/Cross-thread implmentations.
158 class TabChildBase : public nsISupports,
159 public nsFrameScriptExecutor,
160 public ipc::MessageManagerCallback
161 {
162 public:
163 TabChildBase();
164 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
165 NS_DECL_CYCLE_COLLECTION_CLASS(TabChildBase)
166
167 virtual nsIWebNavigation* WebNavigation() = 0;
168 virtual nsIWidget* WebWidget() = 0;
169 nsIPrincipal* GetPrincipal() { return mPrincipal; }
170 bool IsAsyncPanZoomEnabled();
171 // Recalculates the display state, including the CSS
172 // viewport. This should be called whenever we believe the
173 // viewport data on a document may have changed. If it didn't
174 // change, this function doesn't do anything. However, it should
175 // not be called all the time as it is fairly expensive.
176 bool HandlePossibleViewportChange();
177 virtual bool DoUpdateZoomConstraints(const uint32_t& aPresShellId,
178 const mozilla::layers::FrameMetrics::ViewID& aViewId,
179 const bool& aIsRoot,
180 const mozilla::layers::ZoomConstraints& aConstraints) = 0;
181
182 nsEventStatus DispatchSynthesizedMouseEvent(uint32_t aMsg, uint64_t aTime,
183 const LayoutDevicePoint& aRefPoint,
184 nsIWidget* aWidget);
185
186 protected:
187 CSSSize GetPageSize(nsCOMPtr<nsIDocument> aDocument, const CSSSize& aViewport);
188
189 // Get the DOMWindowUtils for the top-level window in this tab.
190 already_AddRefed<nsIDOMWindowUtils> GetDOMWindowUtils();
191 // Get the Document for the top-level window in this tab.
192 already_AddRefed<nsIDocument> GetDocument();
193
194 // Wrapper for nsIDOMWindowUtils.setCSSViewport(). This updates some state
195 // variables local to this class before setting it.
196 void SetCSSViewport(const CSSSize& aSize);
197
198 // Wraps up a JSON object as a structured clone and sends it to the browser
199 // chrome script.
200 //
201 // XXX/bug 780335: Do the work the browser chrome script does in C++ instead
202 // so we don't need things like this.
203 void DispatchMessageManagerMessage(const nsAString& aMessageName,
204 const nsAString& aJSONData);
205
206 nsEventStatus DispatchWidgetEvent(WidgetGUIEvent& event);
207
208 bool HasValidInnerSize();
209 void InitializeRootMetrics();
210
211 mozilla::layers::FrameMetrics ProcessUpdateFrame(const mozilla::layers::FrameMetrics& aFrameMetrics);
212
213 bool UpdateFrameHandler(const mozilla::layers::FrameMetrics& aFrameMetrics);
214
215 protected:
216 float mOldViewportWidth;
217 bool mContentDocumentIsDisplayed;
218 nsRefPtr<TabChildGlobal> mTabChildGlobal;
219 ScreenIntSize mInnerSize;
220 mozilla::layers::FrameMetrics mLastRootMetrics;
221 mozilla::layout::ScrollingBehavior mScrolling;
222 };
223
224 class TabChild : public TabChildBase,
225 public PBrowserChild,
226 public nsIWebBrowserChrome2,
227 public nsIEmbeddingSiteWindow,
228 public nsIWebBrowserChromeFocus,
229 public nsIInterfaceRequestor,
230 public nsIWindowProvider,
231 public nsIDOMEventListener,
232 public nsIWebProgressListener,
233 public nsSupportsWeakReference,
234 public nsITabChild,
235 public nsIObserver,
236 public TabContext,
237 public nsITooltipListener
238 {
239 typedef mozilla::dom::ClonedMessageData ClonedMessageData;
240 typedef mozilla::layout::RenderFrameChild RenderFrameChild;
241 typedef mozilla::layout::ScrollingBehavior ScrollingBehavior;
242 typedef mozilla::layers::ActiveElementManager ActiveElementManager;
243
244 public:
245 /**
246 * This is expected to be called off the critical path to content
247 * startup. This is an opportunity to load things that are slow
248 * on the critical path.
249 */
250 static void PreloadSlowThings();
251
252 /** Return a TabChild with the given attributes. */
253 static already_AddRefed<TabChild>
254 Create(ContentChild* aManager, const TabContext& aContext, uint32_t aChromeFlags);
255
256 virtual ~TabChild();
257
258 bool IsRootContentDocument();
259
260 NS_DECL_ISUPPORTS_INHERITED
261 NS_DECL_NSIWEBBROWSERCHROME
262 NS_DECL_NSIWEBBROWSERCHROME2
263 NS_DECL_NSIEMBEDDINGSITEWINDOW
264 NS_DECL_NSIWEBBROWSERCHROMEFOCUS
265 NS_DECL_NSIINTERFACEREQUESTOR
266 NS_DECL_NSIWINDOWPROVIDER
267 NS_DECL_NSIDOMEVENTLISTENER
268 NS_DECL_NSIWEBPROGRESSLISTENER
269 NS_DECL_NSITABCHILD
270 NS_DECL_NSIOBSERVER
271 NS_DECL_NSITOOLTIPLISTENER
272
273 /**
274 * MessageManagerCallback methods that we override.
275 */
276 virtual bool DoSendBlockingMessage(JSContext* aCx,
277 const nsAString& aMessage,
278 const mozilla::dom::StructuredCloneData& aData,
279 JS::Handle<JSObject *> aCpows,
280 nsIPrincipal* aPrincipal,
281 InfallibleTArray<nsString>* aJSONRetVal,
282 bool aIsSync) MOZ_OVERRIDE;
283 virtual bool DoSendAsyncMessage(JSContext* aCx,
284 const nsAString& aMessage,
285 const mozilla::dom::StructuredCloneData& aData,
286 JS::Handle<JSObject *> aCpows,
287 nsIPrincipal* aPrincipal) MOZ_OVERRIDE;
288 virtual bool DoUpdateZoomConstraints(const uint32_t& aPresShellId,
289 const ViewID& aViewId,
290 const bool& aIsRoot,
291 const ZoomConstraints& aConstraints) MOZ_OVERRIDE;
292 virtual bool RecvLoadURL(const nsCString& uri) MOZ_OVERRIDE;
293 virtual bool RecvCacheFileDescriptor(const nsString& aPath,
294 const FileDescriptor& aFileDescriptor)
295 MOZ_OVERRIDE;
296 virtual bool RecvShow(const nsIntSize& size) MOZ_OVERRIDE;
297 virtual bool RecvUpdateDimensions(const nsRect& rect,
298 const nsIntSize& size,
299 const ScreenOrientation& orientation) MOZ_OVERRIDE;
300 virtual bool RecvUpdateFrame(const mozilla::layers::FrameMetrics& aFrameMetrics) MOZ_OVERRIDE;
301 virtual bool RecvAcknowledgeScrollUpdate(const ViewID& aScrollId,
302 const uint32_t& aScrollGeneration) MOZ_OVERRIDE;
303 virtual bool RecvHandleDoubleTap(const CSSPoint& aPoint,
304 const mozilla::layers::ScrollableLayerGuid& aGuid) MOZ_OVERRIDE;
305 virtual bool RecvHandleSingleTap(const CSSPoint& aPoint,
306 const mozilla::layers::ScrollableLayerGuid& aGuid) MOZ_OVERRIDE;
307 virtual bool RecvHandleLongTap(const CSSPoint& aPoint,
308 const mozilla::layers::ScrollableLayerGuid& aGuid) MOZ_OVERRIDE;
309 virtual bool RecvHandleLongTapUp(const CSSPoint& aPoint,
310 const mozilla::layers::ScrollableLayerGuid& aGuid) MOZ_OVERRIDE;
311 virtual bool RecvNotifyAPZStateChange(const ViewID& aViewId,
312 const APZStateChange& aChange,
313 const int& aArg) MOZ_OVERRIDE;
314 virtual bool RecvActivate() MOZ_OVERRIDE;
315 virtual bool RecvDeactivate() MOZ_OVERRIDE;
316 virtual bool RecvMouseEvent(const nsString& aType,
317 const float& aX,
318 const float& aY,
319 const int32_t& aButton,
320 const int32_t& aClickCount,
321 const int32_t& aModifiers,
322 const bool& aIgnoreRootScrollFrame) MOZ_OVERRIDE;
323 virtual bool RecvRealMouseEvent(const mozilla::WidgetMouseEvent& event) MOZ_OVERRIDE;
324 virtual bool RecvRealKeyEvent(const mozilla::WidgetKeyboardEvent& event,
325 const MaybeNativeKeyBinding& aBindings) MOZ_OVERRIDE;
326 virtual bool RecvMouseWheelEvent(const mozilla::WidgetWheelEvent& event) MOZ_OVERRIDE;
327 virtual bool RecvRealTouchEvent(const WidgetTouchEvent& aEvent,
328 const ScrollableLayerGuid& aGuid) MOZ_OVERRIDE;
329 virtual bool RecvRealTouchMoveEvent(const WidgetTouchEvent& aEvent,
330 const ScrollableLayerGuid& aGuid) MOZ_OVERRIDE;
331 virtual bool RecvKeyEvent(const nsString& aType,
332 const int32_t& aKeyCode,
333 const int32_t& aCharCode,
334 const int32_t& aModifiers,
335 const bool& aPreventDefault) MOZ_OVERRIDE;
336 virtual bool RecvCompositionEvent(const mozilla::WidgetCompositionEvent& event) MOZ_OVERRIDE;
337 virtual bool RecvTextEvent(const mozilla::WidgetTextEvent& event) MOZ_OVERRIDE;
338 virtual bool RecvSelectionEvent(const mozilla::WidgetSelectionEvent& event) MOZ_OVERRIDE;
339 virtual bool RecvActivateFrameEvent(const nsString& aType, const bool& capture) MOZ_OVERRIDE;
340 virtual bool RecvLoadRemoteScript(const nsString& aURL,
341 const bool& aRunInGlobalScope) MOZ_OVERRIDE;
342 virtual bool RecvAsyncMessage(const nsString& aMessage,
343 const ClonedMessageData& aData,
344 const InfallibleTArray<CpowEntry>& aCpows,
345 const IPC::Principal& aPrincipal) MOZ_OVERRIDE;
346
347 virtual PDocumentRendererChild*
348 AllocPDocumentRendererChild(const nsRect& documentRect, const gfx::Matrix& transform,
349 const nsString& bgcolor,
350 const uint32_t& renderFlags, const bool& flushLayout,
351 const nsIntSize& renderSize) MOZ_OVERRIDE;
352 virtual bool DeallocPDocumentRendererChild(PDocumentRendererChild* actor) MOZ_OVERRIDE;
353 virtual bool RecvPDocumentRendererConstructor(PDocumentRendererChild* actor,
354 const nsRect& documentRect,
355 const gfx::Matrix& transform,
356 const nsString& bgcolor,
357 const uint32_t& renderFlags,
358 const bool& flushLayout,
359 const nsIntSize& renderSize) MOZ_OVERRIDE;
360
361 virtual PColorPickerChild*
362 AllocPColorPickerChild(const nsString& title, const nsString& initialColor) MOZ_OVERRIDE;
363 virtual bool DeallocPColorPickerChild(PColorPickerChild* actor) MOZ_OVERRIDE;
364
365 #ifdef DEBUG
366 virtual PContentPermissionRequestChild*
367 SendPContentPermissionRequestConstructor(PContentPermissionRequestChild* aActor,
368 const InfallibleTArray<PermissionRequest>& aRequests,
369 const IPC::Principal& aPrincipal);
370 #endif /* DEBUG */
371
372 virtual PContentPermissionRequestChild*
373 AllocPContentPermissionRequestChild(const InfallibleTArray<PermissionRequest>& aRequests,
374 const IPC::Principal& aPrincipal) MOZ_OVERRIDE;
375 virtual bool
376 DeallocPContentPermissionRequestChild(PContentPermissionRequestChild* actor) MOZ_OVERRIDE;
377
378 virtual PFilePickerChild*
379 AllocPFilePickerChild(const nsString& aTitle, const int16_t& aMode) MOZ_OVERRIDE;
380 virtual bool
381 DeallocPFilePickerChild(PFilePickerChild* actor) MOZ_OVERRIDE;
382
383 virtual POfflineCacheUpdateChild* AllocPOfflineCacheUpdateChild(
384 const URIParams& manifestURI,
385 const URIParams& documentURI,
386 const bool& stickDocument) MOZ_OVERRIDE;
387 virtual bool
388 DeallocPOfflineCacheUpdateChild(POfflineCacheUpdateChild* offlineCacheUpdate) MOZ_OVERRIDE;
389
390 virtual nsIWebNavigation* WebNavigation() MOZ_OVERRIDE { return mWebNav; }
391 virtual nsIWidget* WebWidget() MOZ_OVERRIDE { return mWidget; }
392
393 /** Return the DPI of the widget this TabChild draws to. */
394 void GetDPI(float* aDPI);
395 void GetDefaultScale(double *aScale);
396
397 ScreenOrientation GetOrientation() { return mOrientation; }
398
399 void SetBackgroundColor(const nscolor& aColor);
400
401 void NotifyPainted();
402
403 void RequestNativeKeyBindings(mozilla::widget::AutoCacheNativeKeyCommands* aAutoCache,
404 WidgetKeyboardEvent* aEvent);
405
406 /** Return a boolean indicating if the page has called preventDefault on
407 * the event.
408 */
409 bool DispatchMouseEvent(const nsString& aType,
410 const CSSPoint& aPoint,
411 const int32_t& aButton,
412 const int32_t& aClickCount,
413 const int32_t& aModifiers,
414 const bool& aIgnoreRootScrollFrame,
415 const unsigned short& aInputSourceArg);
416
417 /**
418 * Signal to this TabChild that it should be made visible:
419 * activated widget, retained layer tree, etc. (Respectively,
420 * made not visible.)
421 */
422 void MakeVisible();
423 void MakeHidden();
424
425 // Returns true if the file descriptor was found in the cache, false
426 // otherwise.
427 bool GetCachedFileDescriptor(const nsAString& aPath,
428 nsICachedFileDescriptorListener* aCallback);
429
430 void CancelCachedFileDescriptorCallback(
431 const nsAString& aPath,
432 nsICachedFileDescriptorListener* aCallback);
433
434 ContentChild* Manager() { return mManager; }
435
436 bool GetUpdateHitRegion() { return mUpdateHitRegion; }
437
438 void UpdateHitRegion(const nsRegion& aRegion);
439
440 static inline TabChild*
441 GetFrom(nsIDocShell* aDocShell)
442 {
443 nsCOMPtr<nsITabChild> tc = do_GetInterface(aDocShell);
444 return static_cast<TabChild*>(tc.get());
445 }
446
447 static TabChild* GetFrom(nsIPresShell* aPresShell);
448 static TabChild* GetFrom(uint64_t aLayersId);
449
450 void DidComposite();
451
452 static inline TabChild*
453 GetFrom(nsIDOMWindow* aWindow)
454 {
455 nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(aWindow);
456 nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(webNav);
457 return GetFrom(docShell);
458 }
459
460 protected:
461 virtual PRenderFrameChild* AllocPRenderFrameChild() MOZ_OVERRIDE;
462 virtual bool DeallocPRenderFrameChild(PRenderFrameChild* aFrame) MOZ_OVERRIDE;
463 virtual bool RecvDestroy() MOZ_OVERRIDE;
464 virtual bool RecvSetUpdateHitRegion(const bool& aEnabled) MOZ_OVERRIDE;
465 virtual bool RecvSetIsDocShellActive(const bool& aIsActive) MOZ_OVERRIDE;
466
467 virtual PIndexedDBChild* AllocPIndexedDBChild(const nsCString& aGroup,
468 const nsCString& aASCIIOrigin,
469 bool* /* aAllowed */) MOZ_OVERRIDE;
470
471 virtual bool DeallocPIndexedDBChild(PIndexedDBChild* aActor) MOZ_OVERRIDE;
472
473 private:
474 /**
475 * Create a new TabChild object.
476 *
477 * |aOwnOrContainingAppId| is the app-id of our frame or of the closest app
478 * frame in the hierarchy which contains us.
479 *
480 * |aIsBrowserElement| indicates whether we're a browser (but not an app).
481 */
482 TabChild(ContentChild* aManager, const TabContext& aContext, uint32_t aChromeFlags);
483
484 nsresult Init();
485
486
487 // Notify others that our TabContext has been updated. (At the moment, this
488 // sets the appropriate app-id and is-browser flags on our docshell.)
489 //
490 // You should call this after calling TabContext::SetTabContext(). We also
491 // call this during Init().
492 void NotifyTabContextUpdated();
493
494 bool UseDirectCompositor();
495
496 void ActorDestroy(ActorDestroyReason why) MOZ_OVERRIDE;
497
498 enum FrameScriptLoading { DONT_LOAD_SCRIPTS, DEFAULT_LOAD_SCRIPTS };
499 bool InitTabChildGlobal(FrameScriptLoading aScriptLoading = DEFAULT_LOAD_SCRIPTS);
500 bool InitRenderingState();
501 void DestroyWindow();
502 void SetProcessNameToAppName();
503
504 // Call RecvShow(nsIntSize(0, 0)) and block future calls to RecvShow().
505 void DoFakeShow();
506
507 // These methods are used for tracking synthetic mouse events
508 // dispatched for compatibility. On each touch event, we
509 // UpdateTapState(). If we've detected that the current gesture
510 // isn't a tap, then we CancelTapTracking(). In the meantime, we
511 // may detect a context-menu event, and if so we
512 // FireContextMenuEvent().
513 void FireContextMenuEvent();
514 void CancelTapTracking();
515 void UpdateTapState(const WidgetTouchEvent& aEvent, nsEventStatus aStatus);
516
517 nsresult
518 BrowserFrameProvideWindow(nsIDOMWindow* aOpener,
519 nsIURI* aURI,
520 const nsAString& aName,
521 const nsACString& aFeatures,
522 bool* aWindowIsNew,
523 nsIDOMWindow** aReturn);
524
525 class CachedFileDescriptorInfo;
526 class CachedFileDescriptorCallbackRunnable;
527
528 TextureFactoryIdentifier mTextureFactoryIdentifier;
529 nsCOMPtr<nsIWebNavigation> mWebNav;
530 nsCOMPtr<nsIWidget> mWidget;
531 nsCOMPtr<nsIURI> mLastURI;
532 RenderFrameChild* mRemoteFrame;
533 nsRefPtr<ContentChild> mManager;
534 uint32_t mChromeFlags;
535 uint64_t mLayersId;
536 nsIntRect mOuterRect;
537 // When we're tracking a possible tap gesture, this is the "down"
538 // point of the touchstart.
539 LayoutDevicePoint mGestureDownPoint;
540 // The touch identifier of the active gesture.
541 int32_t mActivePointerId;
542 // A timer task that fires if the tap-hold timeout is exceeded by
543 // the touch we're tracking. That is, if touchend or a touchmove
544 // that exceeds the gesture threshold doesn't happen.
545 CancelableTask* mTapHoldTimer;
546 // Whether we have already received a FileDescriptor for the app package.
547 bool mAppPackageFileDescriptorRecved;
548 // At present only 1 of these is really expected.
549 nsAutoTArray<nsAutoPtr<CachedFileDescriptorInfo>, 1>
550 mCachedFileDescriptorInfos;
551 nscolor mLastBackgroundColor;
552 bool mDidFakeShow;
553 bool mNotified;
554 bool mTriedBrowserInit;
555 ScreenOrientation mOrientation;
556 bool mUpdateHitRegion;
557 bool mContextMenuHandled;
558 bool mWaitingTouchListeners;
559 void FireSingleTapEvent(LayoutDevicePoint aPoint);
560
561 bool mIgnoreKeyPressEvent;
562 nsRefPtr<ActiveElementManager> mActiveElementManager;
563
564 DISALLOW_EVIL_CONSTRUCTORS(TabChild);
565 };
566
567 }
568 }
569
570 #endif // mozilla_dom_TabChild_h

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