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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_BrowserChild_h
+#define mozilla_dom_BrowserChild_h
+
+#include "mozilla/dom/ContentFrameMessageManager.h"
+#include "mozilla/dom/PBrowserChild.h"
+#include "nsIWebNavigation.h"
+#include "nsCOMPtr.h"
+#include "nsIWebBrowserChrome.h"
+#include "nsIWebBrowserChromeFocus.h"
+#include "nsIDOMEventListener.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIWindowProvider.h"
+#include "nsIDocShell.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsWeakReference.h"
+#include "nsIBrowserChild.h"
+#include "nsITooltipListener.h"
+#include "nsIWebProgressListener.h"
+#include "nsIWebProgressListener2.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/dom/TabContext.h"
+#include "mozilla/dom/CoalescedMouseData.h"
+#include "mozilla/dom/CoalescedTouchData.h"
+#include "mozilla/dom/CoalescedWheelData.h"
+#include "mozilla/dom/MessageManagerCallback.h"
+#include "mozilla/dom/VsyncMainChild.h"
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/EventForwards.h"
+#include "mozilla/layers/CompositorTypes.h"
+#include "mozilla/layers/APZCCallbackHelper.h"
+#include "mozilla/layers/CompositorOptions.h"
+#include "mozilla/layers/GeckoContentControllerTypes.h"
+#include "mozilla/dom/ipc/IdType.h"
+#include "AudioChannelService.h"
+#include "PuppetWidget.h"
+#include "nsDeque.h"
+#include "nsIRemoteTab.h"
+#include "nsTHashSet.h"
+
+class nsBrowserStatusFilter;
+class nsIDOMWindow;
+class nsIHttpChannel;
+class nsIRequest;
+class nsISerialEventTarget;
+class nsIWebProgress;
+class nsWebBrowser;
+class nsDocShellLoadState;
+
+template <typename T>
+class nsTHashtable;
+template <typename T>
+class nsPtrHashKey;
+
+namespace mozilla {
+enum class NativeKeyBindingsType : uint8_t;
+
+class AbstractThread;
+class PresShell;
+
+namespace layers {
+class APZChild;
+class APZEventState;
+class AsyncDragMetrics;
+class IAPZCTreeManager;
+class ImageCompositeNotification;
+class PCompositorBridgeChild;
+} // namespace layers
+
+namespace widget {
+struct AutoCacheNativeKeyCommands;
+} // namespace widget
+
+namespace dom {
+
+class BrowserChild;
+class BrowsingContext;
+class TabGroup;
+class ClonedMessageData;
+class CoalescedMouseData;
+class CoalescedWheelData;
+class SessionStoreChild;
+class RequestData;
+class WebProgressData;
+
+class BrowserChildMessageManager : public ContentFrameMessageManager,
+ public nsIMessageSender,
+ public DispatcherTrait,
+ public nsSupportsWeakReference {
+ public:
+ explicit BrowserChildMessageManager(BrowserChild* aBrowserChild);
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(BrowserChildMessageManager,
+ DOMEventTargetHelper)
+
+ void MarkForCC();
+
+ JSObject* WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) override;
+
+ virtual Nullable<WindowProxyHolder> GetContent(ErrorResult& aError) override;
+ virtual already_AddRefed<nsIDocShell> GetDocShell(
+ ErrorResult& aError) override;
+ virtual already_AddRefed<nsIEventTarget> GetTabEventTarget() override;
+
+ NS_FORWARD_SAFE_NSIMESSAGESENDER(mMessageManager)
+
+ void GetEventTargetParent(EventChainPreVisitor& aVisitor) override {
+ aVisitor.mForceContentDispatch = true;
+ }
+
+ // Dispatch a runnable related to the global.
+ virtual nsresult Dispatch(mozilla::TaskCategory aCategory,
+ already_AddRefed<nsIRunnable>&& aRunnable) override;
+
+ virtual nsISerialEventTarget* EventTargetFor(
+ mozilla::TaskCategory aCategory) const override;
+
+ virtual AbstractThread* AbstractMainThreadFor(
+ mozilla::TaskCategory aCategory) override;
+
+ RefPtr<BrowserChild> mBrowserChild;
+
+ protected:
+ ~BrowserChildMessageManager();
+};
+
+/**
+ * BrowserChild implements the child actor part of the PBrowser protocol. See
+ * PBrowser for more information.
+ */
+class BrowserChild final : public nsMessageManagerScriptExecutor,
+ public ipc::MessageManagerCallback,
+ public PBrowserChild,
+ public nsIWebBrowserChrome,
+ public nsIWebBrowserChromeFocus,
+ public nsIInterfaceRequestor,
+ public nsIWindowProvider,
+ public nsSupportsWeakReference,
+ public nsIBrowserChild,
+ public nsIObserver,
+ public nsIWebProgressListener2,
+ public TabContext,
+ public nsITooltipListener,
+ public mozilla::ipc::IShmemAllocator {
+ using PuppetWidget = mozilla::widget::PuppetWidget;
+ using ClonedMessageData = mozilla::dom::ClonedMessageData;
+ using CoalescedMouseData = mozilla::dom::CoalescedMouseData;
+ using CoalescedWheelData = mozilla::dom::CoalescedWheelData;
+ using APZEventState = mozilla::layers::APZEventState;
+ using TouchBehaviorFlags = mozilla::layers::TouchBehaviorFlags;
+
+ friend class PBrowserChild;
+
+ public:
+ /**
+ * Find BrowserChild of aTabId in the same content process of the
+ * caller.
+ */
+ static already_AddRefed<BrowserChild> FindBrowserChild(const TabId& aTabId);
+
+ // Return a list of all active BrowserChildren.
+ static nsTArray<RefPtr<BrowserChild>> GetAll();
+
+ public:
+ /**
+ * Create a new BrowserChild object.
+ */
+ BrowserChild(ContentChild* aManager, const TabId& aTabId,
+ const TabContext& aContext,
+ dom::BrowsingContext* aBrowsingContext, uint32_t aChromeFlags,
+ bool aIsTopLevel);
+
+ MOZ_CAN_RUN_SCRIPT nsresult Init(mozIDOMWindowProxy* aParent,
+ WindowGlobalChild* aInitialWindowChild);
+
+ /** Return a BrowserChild with the given attributes. */
+ static already_AddRefed<BrowserChild> Create(
+ ContentChild* aManager, const TabId& aTabId, const TabContext& aContext,
+ BrowsingContext* aBrowsingContext, uint32_t aChromeFlags,
+ bool aIsTopLevel);
+
+ // Let managees query if it is safe to send messages.
+ bool IsDestroyed() const { return mDestroyed; }
+
+ const TabId GetTabId() const {
+ MOZ_ASSERT(mUniqueId != 0);
+ return mUniqueId;
+ }
+
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_NSIWEBBROWSERCHROME
+ NS_DECL_NSIWEBBROWSERCHROMEFOCUS
+ NS_DECL_NSIINTERFACEREQUESTOR
+ NS_DECL_NSIWINDOWPROVIDER
+ NS_DECL_NSIBROWSERCHILD
+ NS_DECL_NSIOBSERVER
+ NS_DECL_NSIWEBPROGRESSLISTENER
+ NS_DECL_NSIWEBPROGRESSLISTENER2
+ NS_DECL_NSITOOLTIPLISTENER
+
+ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(BrowserChild,
+ nsIBrowserChild)
+
+ FORWARD_SHMEM_ALLOCATOR_TO(PBrowserChild)
+
+ JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
+ return mBrowserChildMessageManager->WrapObject(aCx, aGivenProto);
+ }
+
+ // Get the Document for the top-level window in this tab.
+ already_AddRefed<Document> GetTopLevelDocument() const;
+
+ // Get the pres-shell of the document for the top-level window in this tab.
+ PresShell* GetTopLevelPresShell() const;
+
+ BrowserChildMessageManager* GetMessageManager() {
+ return mBrowserChildMessageManager;
+ }
+
+ bool IsTopLevel() const { return mIsTopLevel; }
+
+ bool ShouldSendWebProgressEventsToParent() const {
+ return mShouldSendWebProgressEventsToParent;
+ }
+
+ /**
+ * MessageManagerCallback methods that we override.
+ */
+ virtual bool DoSendBlockingMessage(
+ const nsAString& aMessage, StructuredCloneData& aData,
+ nsTArray<StructuredCloneData>* aRetVal) override;
+
+ virtual nsresult DoSendAsyncMessage(const nsAString& aMessage,
+ StructuredCloneData& aData) override;
+
+ bool DoUpdateZoomConstraints(const uint32_t& aPresShellId,
+ const ViewID& aViewId,
+ const Maybe<ZoomConstraints>& aConstraints);
+
+ mozilla::ipc::IPCResult RecvLoadURL(nsDocShellLoadState* aLoadState,
+ const ParentShowInfo& aInfo);
+
+ mozilla::ipc::IPCResult RecvCreateAboutBlankContentViewer(
+ nsIPrincipal* aPrincipal, nsIPrincipal* aPartitionedPrincipal);
+
+ mozilla::ipc::IPCResult RecvResumeLoad(const uint64_t& aPendingSwitchID,
+ const ParentShowInfo&);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY mozilla::ipc::IPCResult
+ RecvCloneDocumentTreeIntoSelf(
+ const MaybeDiscarded<BrowsingContext>& aSourceBC,
+ const embedding::PrintData& aPrintData,
+ CloneDocumentTreeIntoSelfResolver&& aResolve);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ mozilla::ipc::IPCResult RecvUpdateRemotePrintSettings(
+ const embedding::PrintData& aPrintData);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ mozilla::ipc::IPCResult RecvShow(const ParentShowInfo&, const OwnerShowInfo&);
+
+ mozilla::ipc::IPCResult RecvInitRendering(
+ const TextureFactoryIdentifier& aTextureFactoryIdentifier,
+ const layers::LayersId& aLayersId,
+ const mozilla::layers::CompositorOptions& aCompositorOptions,
+ const bool& aLayersConnected);
+
+ mozilla::ipc::IPCResult RecvCompositorOptionsChanged(
+ const mozilla::layers::CompositorOptions& aNewOptions);
+
+ mozilla::ipc::IPCResult RecvUpdateDimensions(
+ const mozilla::dom::DimensionInfo& aDimensionInfo);
+ mozilla::ipc::IPCResult RecvSizeModeChanged(const nsSizeMode& aSizeMode);
+
+ mozilla::ipc::IPCResult RecvChildToParentMatrix(
+ const mozilla::Maybe<mozilla::gfx::Matrix4x4>& aMatrix,
+ const mozilla::ScreenRect& aTopLevelViewportVisibleRectInBrowserCoords);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ mozilla::ipc::IPCResult RecvDynamicToolbarMaxHeightChanged(
+ const mozilla::ScreenIntCoord& aHeight);
+
+ mozilla::ipc::IPCResult RecvDynamicToolbarOffsetChanged(
+ const mozilla::ScreenIntCoord& aOffset);
+
+ mozilla::ipc::IPCResult RecvActivate(uint64_t aActionId);
+
+ mozilla::ipc::IPCResult RecvDeactivate(uint64_t aActionId);
+
+ mozilla::ipc::IPCResult RecvRealMouseMoveEvent(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+ mozilla::ipc::IPCResult RecvNormalPriorityRealMouseMoveEvent(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+ mozilla::ipc::IPCResult RecvRealMouseMoveEventForTests(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+ mozilla::ipc::IPCResult RecvNormalPriorityRealMouseMoveEventForTests(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+
+ mozilla::ipc::IPCResult RecvSynthMouseMoveEvent(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+ mozilla::ipc::IPCResult RecvNormalPrioritySynthMouseMoveEvent(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+
+ mozilla::ipc::IPCResult RecvRealMouseButtonEvent(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+ mozilla::ipc::IPCResult RecvNormalPriorityRealMouseButtonEvent(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+
+ mozilla::ipc::IPCResult RecvRealMouseEnterExitWidgetEvent(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+ mozilla::ipc::IPCResult RecvNormalPriorityRealMouseEnterExitWidgetEvent(
+ const mozilla::WidgetMouseEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ mozilla::ipc::IPCResult RecvRealDragEvent(const WidgetDragEvent& aEvent,
+ const uint32_t& aDragAction,
+ const uint32_t& aDropEffect,
+ nsIPrincipal* aPrincipal,
+ nsIContentSecurityPolicy* aCsp);
+
+ mozilla::ipc::IPCResult RecvRealKeyEvent(
+ const mozilla::WidgetKeyboardEvent& aEvent, const nsID& aUUID);
+
+ mozilla::ipc::IPCResult RecvNormalPriorityRealKeyEvent(
+ const mozilla::WidgetKeyboardEvent& aEvent, const nsID& aUUID);
+
+ mozilla::ipc::IPCResult RecvMouseWheelEvent(
+ const mozilla::WidgetWheelEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+
+ mozilla::ipc::IPCResult RecvNormalPriorityMouseWheelEvent(
+ const mozilla::WidgetWheelEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+
+ mozilla::ipc::IPCResult RecvRealTouchEvent(const WidgetTouchEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId,
+ const nsEventStatus& aApzResponse);
+
+ mozilla::ipc::IPCResult RecvNormalPriorityRealTouchEvent(
+ const WidgetTouchEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId, const nsEventStatus& aApzResponse);
+
+ mozilla::ipc::IPCResult RecvRealTouchMoveEvent(
+ const WidgetTouchEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId, const nsEventStatus& aApzResponse);
+
+ mozilla::ipc::IPCResult RecvNormalPriorityRealTouchMoveEvent(
+ const WidgetTouchEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId, const nsEventStatus& aApzResponse);
+
+ mozilla::ipc::IPCResult RecvRealTouchMoveEvent2(
+ const WidgetTouchEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId, const nsEventStatus& aApzResponse) {
+ return RecvRealTouchMoveEvent(aEvent, aGuid, aInputBlockId, aApzResponse);
+ }
+
+ mozilla::ipc::IPCResult RecvNormalPriorityRealTouchMoveEvent2(
+ const WidgetTouchEvent& aEvent, const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId, const nsEventStatus& aApzResponse) {
+ return RecvNormalPriorityRealTouchMoveEvent(aEvent, aGuid, aInputBlockId,
+ aApzResponse);
+ }
+
+ mozilla::ipc::IPCResult RecvUpdateSHistory();
+
+ mozilla::ipc::IPCResult RecvNativeSynthesisResponse(
+ const uint64_t& aObserverId, const nsCString& aResponse);
+
+ mozilla::ipc::IPCResult RecvCompositionEvent(
+ const mozilla::WidgetCompositionEvent& aEvent);
+
+ mozilla::ipc::IPCResult RecvNormalPriorityCompositionEvent(
+ const mozilla::WidgetCompositionEvent& aEvent);
+
+ mozilla::ipc::IPCResult RecvSelectionEvent(
+ const mozilla::WidgetSelectionEvent& aEvent);
+
+ mozilla::ipc::IPCResult RecvNormalPrioritySelectionEvent(
+ const mozilla::WidgetSelectionEvent& aEvent);
+
+ mozilla::ipc::IPCResult RecvInsertText(const nsAString& aStringToInsert);
+
+ mozilla::ipc::IPCResult RecvUpdateRemoteStyle(
+ const StyleImageRendering& aImageRendering);
+
+ mozilla::ipc::IPCResult RecvNormalPriorityInsertText(
+ const nsAString& aStringToInsert);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ mozilla::ipc::IPCResult RecvPasteTransferable(
+ const IPCTransferableData& aTransferableData, const bool& aIsPrivateData,
+ nsIPrincipal* aRequestingPrincipal,
+ const nsContentPolicyType& aContentPolicyType);
+
+ mozilla::ipc::IPCResult RecvLoadRemoteScript(const nsAString& aURL,
+ const bool& aRunInGlobalScope);
+
+ mozilla::ipc::IPCResult RecvAsyncMessage(const nsAString& aMessage,
+ const ClonedMessageData& aData);
+ mozilla::ipc::IPCResult RecvSwappedWithOtherRemoteLoader(
+ const IPCTabContext& aContext);
+
+ mozilla::ipc::IPCResult RecvSafeAreaInsetsChanged(
+ const mozilla::ScreenIntMargin& aSafeAreaInsets);
+
+#ifdef ACCESSIBILITY
+ PDocAccessibleChild* AllocPDocAccessibleChild(
+ PDocAccessibleChild*, const uint64_t&,
+ const MaybeDiscardedBrowsingContext&);
+ bool DeallocPDocAccessibleChild(PDocAccessibleChild*);
+#endif
+
+ RefPtr<VsyncMainChild> GetVsyncChild();
+
+ nsIWebNavigation* WebNavigation() const { return mWebNav; }
+
+ PuppetWidget* WebWidget() { return mPuppetWidget; }
+
+ bool IsTransparent() const { return mIsTransparent; }
+
+ const EffectsInfo& GetEffectsInfo() const { return mEffectsInfo; }
+
+ void SetBackgroundColor(const nscolor& aColor);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY virtual mozilla::ipc::IPCResult RecvUpdateEffects(
+ const EffectsInfo& aEffects);
+
+ void RequestEditCommands(NativeKeyBindingsType aType,
+ const WidgetKeyboardEvent& aEvent,
+ nsTArray<CommandInt>& aCommands);
+
+ bool IsVisible();
+ bool IsPreservingLayers() const { return mIsPreservingLayers; }
+
+ /**
+ * Signal to this BrowserChild that it should be made visible:
+ * activated widget, retained layer tree, etc. (Respectively,
+ * made not visible.)
+ */
+ MOZ_CAN_RUN_SCRIPT void UpdateVisibility();
+ MOZ_CAN_RUN_SCRIPT void MakeVisible();
+ void MakeHidden();
+ void PresShellActivenessMaybeChanged();
+
+ ContentChild* Manager() const { return mManager; }
+
+ static inline BrowserChild* GetFrom(nsIDocShell* aDocShell) {
+ if (!aDocShell) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIBrowserChild> tc = aDocShell->GetBrowserChild();
+ return static_cast<BrowserChild*>(tc.get());
+ }
+
+ static inline BrowserChild* GetFrom(mozIDOMWindow* aWindow) {
+ nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(aWindow);
+ nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(webNav);
+ return GetFrom(docShell);
+ }
+
+ static inline BrowserChild* GetFrom(mozIDOMWindowProxy* aWindow) {
+ nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(aWindow);
+ nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(webNav);
+ return GetFrom(docShell);
+ }
+
+ static BrowserChild* GetFrom(PresShell* aPresShell);
+ static BrowserChild* GetFrom(layers::LayersId aLayersId);
+
+ layers::LayersId GetLayersId() { return mLayersId; }
+ Maybe<bool> IsLayersConnected() { return mLayersConnected; }
+
+ void DidComposite(mozilla::layers::TransactionId aTransactionId,
+ const TimeStamp& aCompositeStart,
+ const TimeStamp& aCompositeEnd);
+
+ void DidRequestComposite(const TimeStamp& aCompositeReqStart,
+ const TimeStamp& aCompositeReqEnd);
+
+ void ClearCachedResources();
+ void SchedulePaint();
+ void ReinitRendering();
+ void ReinitRenderingForDeviceReset();
+
+ void NotifyJankedAnimations(const nsTArray<uint64_t>& aJankedAnimations);
+
+ static inline BrowserChild* GetFrom(nsIDOMWindow* aWindow) {
+ nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(aWindow);
+ nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(webNav);
+ return GetFrom(docShell);
+ }
+
+ mozilla::ipc::IPCResult RecvUIResolutionChanged(const float& aDpi,
+ const int32_t& aRounding,
+ const double& aScale);
+
+ mozilla::ipc::IPCResult RecvHandleAccessKey(const WidgetKeyboardEvent& aEvent,
+ nsTArray<uint32_t>&& aCharCodes);
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ mozilla::ipc::IPCResult RecvPrintPreview(const PrintData& aPrintData,
+ const MaybeDiscardedBrowsingContext&,
+ PrintPreviewResolver&& aCallback);
+
+ mozilla::ipc::IPCResult RecvExitPrintPreview();
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY mozilla::ipc::IPCResult RecvPrint(
+ const MaybeDiscardedBrowsingContext&, const PrintData&);
+
+ mozilla::ipc::IPCResult RecvUpdateNativeWindowHandle(
+ const uintptr_t& aNewHandle);
+
+ mozilla::ipc::IPCResult RecvWillChangeProcess();
+
+ PPaymentRequestChild* AllocPPaymentRequestChild();
+
+ bool DeallocPPaymentRequestChild(PPaymentRequestChild* aActor);
+
+ LayoutDeviceIntPoint GetClientOffset() const { return mClientOffset; }
+ LayoutDeviceIntPoint GetChromeOffset() const { return mChromeOffset; };
+ ScreenIntCoord GetDynamicToolbarMaxHeight() const {
+ return mDynamicToolbarMaxHeight;
+ };
+
+ bool IPCOpen() const { return mIPCOpen; }
+
+ const mozilla::layers::CompositorOptions& GetCompositorOptions() const;
+ bool AsyncPanZoomEnabled() const;
+
+ ScreenIntSize GetInnerSize();
+ CSSSize GetUnscaledInnerSize() { return mUnscaledInnerSize; }
+
+ Maybe<nsRect> GetVisibleRect() const;
+
+ // Call RecvShow(nsIntSize(0, 0)) and block future calls to RecvShow().
+ void DoFakeShow(const ParentShowInfo&);
+
+ void ContentReceivedInputBlock(uint64_t aInputBlockId,
+ bool aPreventDefault) const;
+ void SetTargetAPZC(
+ uint64_t aInputBlockId,
+ const nsTArray<layers::ScrollableLayerGuid>& aTargets) const;
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ mozilla::ipc::IPCResult RecvHandleTap(
+ const layers::GeckoContentController_TapType& aType,
+ const LayoutDevicePoint& aPoint, const Modifiers& aModifiers,
+ const ScrollableLayerGuid& aGuid, const uint64_t& aInputBlockId);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ mozilla::ipc::IPCResult RecvNormalPriorityHandleTap(
+ const layers::GeckoContentController_TapType& aType,
+ const LayoutDevicePoint& aPoint, const Modifiers& aModifiers,
+ const ScrollableLayerGuid& aGuid, const uint64_t& aInputBlockId);
+
+ bool UpdateFrame(const layers::RepaintRequest& aRequest);
+ bool NotifyAPZStateChange(
+ const ViewID& aViewId,
+ const layers::GeckoContentController_APZStateChange& aChange,
+ const int& aArg, Maybe<uint64_t> aInputBlockId);
+ void StartScrollbarDrag(const layers::AsyncDragMetrics& aDragMetrics);
+ void ZoomToRect(const uint32_t& aPresShellId,
+ const ScrollableLayerGuid::ViewID& aViewId,
+ const CSSRect& aRect, const uint32_t& aFlags);
+
+ // Request that the docshell be marked as active.
+ void PaintWhileInterruptingJS(const layers::LayersObserverEpoch& aEpoch);
+
+ void UnloadLayersWhileInterruptingJS(
+ const layers::LayersObserverEpoch& aEpoch);
+
+ nsresult CanCancelContentJS(nsIRemoteTab::NavigationType aNavigationType,
+ int32_t aNavigationIndex, nsIURI* aNavigationURI,
+ int32_t aEpoch, bool* aCanCancel);
+
+ layers::LayersObserverEpoch LayersObserverEpoch() const {
+ return mLayersObserverEpoch;
+ }
+
+#if defined(XP_WIN) && defined(ACCESSIBILITY)
+ uintptr_t GetNativeWindowHandle() const { return mNativeWindowHandle; }
+#endif
+
+ BrowsingContext* GetBrowsingContext() const { return mBrowsingContext; }
+
+#if defined(ACCESSIBILITY)
+ void SetTopLevelDocAccessibleChild(PDocAccessibleChild* aTopLevelChild) {
+ mTopLevelDocAccessibleChild = aTopLevelChild;
+ }
+
+ PDocAccessibleChild* GetTopLevelDocAccessibleChild() {
+ return mTopLevelDocAccessibleChild;
+ }
+#endif
+
+ // The transform from the coordinate space of this BrowserChild to the
+ // coordinate space of the native window its BrowserParent is in.
+ mozilla::LayoutDeviceToLayoutDeviceMatrix4x4
+ GetChildToParentConversionMatrix() const;
+
+ // Returns the portion of the visible rect of this remote document in the
+ // top browser window coordinate system. This is the result of being clipped
+ // by all ancestor viewports.
+ Maybe<ScreenRect> GetTopLevelViewportVisibleRectInBrowserCoords() const;
+
+ // Similar to above GetTopLevelViewportVisibleRectInBrowserCoords(), but in
+ // this out-of-process document's coordinate system.
+ Maybe<LayoutDeviceRect> GetTopLevelViewportVisibleRectInSelfCoords() const;
+
+ // Prepare to dispatch all coalesced mousemove events. We'll move all data
+ // in mCoalescedMouseData to a nsDeque; then we start processing them. We
+ // can't fetch the coalesced event one by one and dispatch it because we may
+ // reentry the event loop and access to the same hashtable. It's called when
+ // dispatching some mouse events other than mousemove.
+ void FlushAllCoalescedMouseData();
+ void ProcessPendingCoalescedMouseDataAndDispatchEvents();
+
+ void ProcessPendingCoalescedTouchData();
+
+ void HandleRealMouseButtonEvent(const WidgetMouseEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+
+ void SetCancelContentJSEpoch(int32_t aEpoch) {
+ mCancelContentJSEpoch = aEpoch;
+ }
+
+ void UpdateSessionStore();
+
+ mozilla::dom::SessionStoreChild* GetSessionStoreChild() {
+ return mSessionStoreChild;
+ }
+
+#ifdef XP_WIN
+ // Check if the window this BrowserChild is associated with supports
+ // protected media (EME) or not.
+ // Returns a promise the will resolve true if the window supports protected
+ // media or false if it does not. The promise will be rejected with an
+ // ResponseRejectReason if the IPC needed to do the check fails. Callers
+ // should treat the reject case as if the window does not support protected
+ // media to ensure robust handling.
+ RefPtr<IsWindowSupportingProtectedMediaPromise>
+ DoesWindowSupportProtectedMedia();
+#endif
+
+ // Notify the content blocking event in the parent process. This sends an IPC
+ // message to the BrowserParent in the parent. The BrowserParent will find the
+ // top-level WindowGlobalParent and notify the event from it.
+ void NotifyContentBlockingEvent(
+ uint32_t aEvent, nsIChannel* aChannel, bool aBlocked,
+ const nsACString& aTrackingOrigin,
+ const nsTArray<nsCString>& aTrackingFullHashes,
+ const Maybe<
+ ContentBlockingNotifier::StorageAccessPermissionGrantedReason>&
+ aReason);
+
+ protected:
+ virtual ~BrowserChild();
+
+ mozilla::ipc::IPCResult RecvDestroy();
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ mozilla::ipc::IPCResult RecvRenderLayers(
+ const bool& aEnabled, const layers::LayersObserverEpoch& aEpoch);
+
+ mozilla::ipc::IPCResult RecvPreserveLayers(bool);
+
+ mozilla::ipc::IPCResult RecvNavigateByKey(const bool& aForward,
+ const bool& aForDocumentNavigation);
+
+ mozilla::ipc::IPCResult RecvSuppressDisplayport(const bool& aEnabled);
+
+ mozilla::ipc::IPCResult RecvScrollbarPreferenceChanged(ScrollbarPreference);
+
+ mozilla::ipc::IPCResult RecvStopIMEStateManagement();
+
+ mozilla::ipc::IPCResult RecvAllowScriptsToClose();
+
+ mozilla::ipc::IPCResult RecvReleaseAllPointerCapture();
+
+ private:
+ void HandleDoubleTap(const CSSPoint& aPoint, const Modifiers& aModifiers,
+ const ScrollableLayerGuid& aGuid);
+
+ void ActorDestroy(ActorDestroyReason why) override;
+
+ bool InitBrowserChildMessageManager();
+
+ void InitRenderingState(
+ const TextureFactoryIdentifier& aTextureFactoryIdentifier,
+ const layers::LayersId& aLayersId,
+ const mozilla::layers::CompositorOptions& aCompositorOptions);
+ void InitAPZState();
+
+ void DestroyWindow();
+
+ void ApplyParentShowInfo(const ParentShowInfo&);
+
+ bool HasValidInnerSize();
+
+ ScreenIntRect GetOuterRect();
+
+ void SetUnscaledInnerSize(const CSSSize& aSize) {
+ mUnscaledInnerSize = aSize;
+ }
+
+ bool SkipRepeatedKeyEvent(const WidgetKeyboardEvent& aEvent);
+
+ void UpdateRepeatedKeyEventEndTime(const WidgetKeyboardEvent& aEvent);
+
+ void DispatchCoalescedWheelEvent();
+
+ /**
+ * Dispatch aEvent on aEvent.mWidget.
+ */
+ nsEventStatus DispatchWidgetEventViaAPZ(WidgetGUIEvent& aEvent);
+
+ void DispatchWheelEvent(const WidgetWheelEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId);
+
+ void InternalSetDocShellIsActive(bool aIsActive);
+
+ bool CreateRemoteLayerManager(
+ mozilla::layers::PCompositorBridgeChild* aCompositorChild);
+
+ nsresult PrepareRequestData(nsIRequest* aRequest, RequestData& aRequestData);
+ nsresult PrepareProgressListenerData(nsIWebProgress* aWebProgress,
+ nsIRequest* aRequest,
+ WebProgressData& aWebProgressData,
+ RequestData& aRequestData);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ nsresult UpdateRemotePrintSettings(const embedding::PrintData& aPrintData);
+
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ nsresult CloneDocumentTreeIntoSelf(
+ const MaybeDiscarded<BrowsingContext>& aSourceBC,
+ const embedding::PrintData& aPrintData);
+
+ class DelayedDeleteRunnable;
+
+ RefPtr<BrowserChildMessageManager> mBrowserChildMessageManager;
+ TextureFactoryIdentifier mTextureFactoryIdentifier;
+ RefPtr<nsWebBrowser> mWebBrowser;
+ nsCOMPtr<nsIWebNavigation> mWebNav;
+ RefPtr<PuppetWidget> mPuppetWidget;
+ nsCOMPtr<nsIURI> mLastURI;
+ RefPtr<ContentChild> mManager;
+ RefPtr<BrowsingContext> mBrowsingContext;
+ RefPtr<nsBrowserStatusFilter> mStatusFilter;
+ uint32_t mChromeFlags;
+ uint32_t mMaxTouchPoints;
+ layers::LayersId mLayersId;
+ CSSRect mUnscaledOuterRect;
+ Maybe<bool> mLayersConnected;
+ Maybe<bool> mLayersConnectRequested;
+ EffectsInfo mEffectsInfo;
+
+ RefPtr<VsyncMainChild> mVsyncChild;
+
+ RefPtr<APZEventState> mAPZEventState;
+
+ // Position of client area relative to the outer window
+ LayoutDeviceIntPoint mClientOffset;
+ // Position of tab, relative to parent widget (typically the window)
+ // NOTE: This value is valuable only for the top level browser.
+ LayoutDeviceIntPoint mChromeOffset;
+ ScreenIntCoord mDynamicToolbarMaxHeight;
+ TabId mUniqueId;
+
+ bool mDidFakeShow : 1;
+ bool mTriedBrowserInit : 1;
+ bool mIgnoreKeyPressEvent : 1;
+ bool mHasValidInnerSize : 1;
+ bool mDestroyed : 1;
+
+ // Whether or not this browser is the child part of the top level PBrowser
+ // actor in a remote browser.
+ bool mIsTopLevel : 1;
+
+ bool mIsTransparent : 1;
+ bool mIPCOpen : 1;
+
+ bool mDidSetRealShowInfo : 1;
+ bool mDidLoadURLInit : 1;
+
+ bool mSkipKeyPress : 1;
+ bool mDidSetEffectsInfo : 1;
+
+ bool mCoalesceMouseMoveEvents : 1;
+
+ bool mShouldSendWebProgressEventsToParent : 1;
+
+ // Whether we are rendering to the compositor or not.
+ bool mRenderLayers : 1;
+
+ // Whether we're artificially preserving layers.
+ bool mIsPreservingLayers : 1;
+
+ // Holds the compositor options for the compositor rendering this tab,
+ // once we find out which compositor that is.
+ Maybe<mozilla::layers::CompositorOptions> mCompositorOptions;
+
+ friend class ContentChild;
+
+ CSSSize mUnscaledInnerSize;
+
+ // Store the end time of the handling of the last repeated keydown/keypress
+ // event so that in case event handling takes time, some repeated events can
+ // be skipped to not flood child process.
+ mozilla::TimeStamp mRepeatedKeyEventTime;
+
+ // Similar to mRepeatedKeyEventTime, store the end time (from parent process)
+ // of handling the last repeated wheel event so that in case event handling
+ // takes time, some repeated events can be skipped to not flood child process.
+ mozilla::TimeStamp mLastWheelProcessedTimeFromParent;
+ mozilla::TimeDuration mLastWheelProcessingDuration;
+
+ // Hash table to track coalesced mousemove events for different pointers.
+ nsClassHashtable<nsUint32HashKey, CoalescedMouseData> mCoalescedMouseData;
+
+ nsDeque<CoalescedMouseData> mToBeDispatchedMouseData;
+
+ CoalescedWheelData mCoalescedWheelData;
+ CoalescedTouchData mCoalescedTouchData;
+
+ RefPtr<CoalescedMouseMoveFlusher> mCoalescedMouseEventFlusher;
+ RefPtr<CoalescedTouchMoveFlusher> mCoalescedTouchMoveEventFlusher;
+
+ RefPtr<layers::IAPZCTreeManager> mApzcTreeManager;
+ RefPtr<SessionStoreChild> mSessionStoreChild;
+
+ // The most recently seen layer observer epoch in RecvSetDocShellIsActive.
+ layers::LayersObserverEpoch mLayersObserverEpoch;
+
+#if defined(XP_WIN) && defined(ACCESSIBILITY)
+ // The handle associated with the native window that contains this tab
+ uintptr_t mNativeWindowHandle;
+#endif // defined(XP_WIN)
+
+#if defined(ACCESSIBILITY)
+ PDocAccessibleChild* mTopLevelDocAccessibleChild;
+#endif
+ int32_t mCancelContentJSEpoch;
+
+ Maybe<LayoutDeviceToLayoutDeviceMatrix4x4> mChildToParentConversionMatrix;
+ // When mChildToParentConversionMatrix is Nothing() this value is invalid.
+ ScreenRect mTopLevelViewportVisibleRectInBrowserCoords;
+
+#ifdef XP_WIN
+ // Should only be accessed on main thread.
+ Maybe<bool> mWindowSupportsProtectedMedia;
+#endif
+
+ // If set, resolve when we receive ChildToParentMatrix.
+ RefPtr<dom::Promise> mContentTransformPromise;
+
+ DISALLOW_EVIL_CONSTRUCTORS(BrowserChild);
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_BrowserChild_h