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Diffstat (limited to 'dom/ipc/BrowserParent.h')
| -rw-r--r-- | dom/ipc/BrowserParent.h | 1015 |
1 files changed, 1015 insertions, 0 deletions
diff --git a/dom/ipc/BrowserParent.h b/dom/ipc/BrowserParent.h new file mode 100644 index 0000000000..ce3f831abf --- /dev/null +++ b/dom/ipc/BrowserParent.h @@ -0,0 +1,1015 @@ +/* -*- 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_BrowserParent_h +#define mozilla_dom_BrowserParent_h + +#include <utility> + +#include "LiveResizeListener.h" +#include "Units.h" +#include "js/TypeDecls.h" +#include "mozilla/AlreadyAddRefed.h" +#include "mozilla/ContentCache.h" +#include "mozilla/EventForwards.h" +#include "mozilla/RefPtr.h" +#include "mozilla/dom/BrowserBridgeParent.h" +#include "mozilla/dom/PBrowserParent.h" +#include "mozilla/dom/TabContext.h" +#include "mozilla/dom/VsyncParent.h" +#include "mozilla/dom/ipc/IdType.h" +#include "mozilla/layout/RemoteLayerTreeOwner.h" +#include "nsCOMPtr.h" +#include "nsIAuthPromptProvider.h" +#include "nsIBrowserDOMWindow.h" +#include "nsIDOMEventListener.h" +#include "nsIFilePicker.h" +#include "nsIRemoteTab.h" +#include "nsIWidget.h" +#include "nsTArray.h" +#include "nsWeakReference.h" + +class imgIContainer; +class nsCycleCollectionTraversalCallback; +class nsDocShellLoadState; +class nsFrameLoader; +class nsIBrowser; +class nsIContent; +class nsIContentSecurityPolicy; +class nsIDocShell; +class nsILoadContext; +class nsIPrincipal; +class nsIRequest; +class nsIURI; +class nsIWebBrowserPersistDocumentReceiver; +class nsIWebProgress; +class nsIXULBrowserWindow; +class nsPIDOMWindowOuter; + +namespace mozilla { + +namespace a11y { +class DocAccessibleParent; +} + +namespace widget { +struct IMENotification; +} // namespace widget + +namespace gfx { +class SourceSurface; +} // namespace gfx + +namespace dom { + +class CanonicalBrowsingContext; +class ClonedMessageData; +class ContentParent; +class Element; +class DataTransfer; +class BrowserHost; +class BrowserBridgeParent; + +namespace ipc { +class StructuredCloneData; +} // namespace ipc + +/** + * BrowserParent implements the parent actor part of the PBrowser protocol. See + * PBrowser for more information. + */ +class BrowserParent final : public PBrowserParent, + public nsIDOMEventListener, + public nsIAuthPromptProvider, + public nsSupportsWeakReference, + public TabContext, + public LiveResizeListener { + typedef mozilla::dom::ClonedMessageData ClonedMessageData; + using TapType = GeckoContentController_TapType; + + friend class PBrowserParent; + + virtual ~BrowserParent(); + + public: + // Helper class for ContentParent::RecvCreateWindow. + struct AutoUseNewTab; + + NS_DECL_CYCLE_COLLECTING_ISUPPORTS + NS_DECL_NSIAUTHPROMPTPROVIDER + // nsIDOMEventListener interfaces + NS_DECL_NSIDOMEVENTLISTENER + + NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(BrowserParent, nsIDOMEventListener) + + BrowserParent(ContentParent* aManager, const TabId& aTabId, + const TabContext& aContext, + CanonicalBrowsingContext* aBrowsingContext, + uint32_t aChromeFlags); + + /** + * Returns the focused BrowserParent or nullptr if chrome or another app + * is focused. + */ + static BrowserParent* GetFocused(); + + static BrowserParent* GetLastMouseRemoteTarget(); + + static BrowserParent* GetFrom(nsFrameLoader* aFrameLoader); + + static BrowserParent* GetFrom(PBrowserParent* aBrowserParent); + + static BrowserParent* GetFrom(nsIContent* aContent); + + static BrowserParent* GetBrowserParentFromLayersId( + layers::LayersId aLayersId); + + static TabId GetTabIdFrom(nsIDocShell* docshell); + + const TabId GetTabId() const { return mTabId; } + + ContentParent* Manager() const { return mManager; } + + CanonicalBrowsingContext* GetBrowsingContext() { return mBrowsingContext; } + + void RecomputeProcessPriority(); + + already_AddRefed<nsILoadContext> GetLoadContext(); + + Element* GetOwnerElement() const { return mFrameElement; } + + nsIBrowserDOMWindow* GetBrowserDOMWindow() const { return mBrowserDOMWindow; } + + already_AddRefed<nsPIDOMWindowOuter> GetParentWindowOuter(); + + already_AddRefed<nsIWidget> GetTopLevelWidget(); + + // Returns the closest widget for our frameloader's content. + already_AddRefed<nsIWidget> GetWidget() const; + + // Returns the top-level widget for our frameloader's document. + already_AddRefed<nsIWidget> GetDocWidget() const; + + /** + * Returns the widget which may have native focus and handles text input + * like keyboard input, IME, etc. + */ + already_AddRefed<nsIWidget> GetTextInputHandlingWidget() const; + + nsIXULBrowserWindow* GetXULBrowserWindow(); + + static uint32_t GetMaxTouchPoints(Element* aElement); + uint32_t GetMaxTouchPoints() { return GetMaxTouchPoints(mFrameElement); } + + /** + * Return the top level DocAccessibleParent for this BrowserParent. + * Note that in the case of an out-of-process iframe, the returned actor + * might not be at the top level of the DocAccessibleParent tree; i.e. it + * might have a parent. However, it will be at the top level in its content + * process. That is, doc->IsTopLevelInContentProcess() will always be true, + * but doc->IsTopLevel() might not. + */ + a11y::DocAccessibleParent* GetTopLevelDocAccessible() const; + + LayersId GetLayersId() const; + + // Returns the BrowserBridgeParent if this BrowserParent is for an + // out-of-process iframe and nullptr otherwise. + BrowserBridgeParent* GetBrowserBridgeParent() const; + + // Returns the BrowserHost if this BrowserParent is for a top-level browser + // and nullptr otherwise. + BrowserHost* GetBrowserHost() const; + + ParentShowInfo GetShowInfo(); + + // Get the content principal from the owner element. + already_AddRefed<nsIPrincipal> GetContentPrincipal() const; + + /** + * Let managees query if Destroy() is already called so they don't send out + * messages when the PBrowser actor is being destroyed. + */ + bool IsDestroyed() const { return mIsDestroyed; } + + /** + * Returns whether we're in the process of creating a new window (from + * window.open). If so, LoadURL calls are being skipped until everything is + * set up. For further details, see `mCreatingWindow` below. + */ + bool CreatingWindow() const { return mCreatingWindow; } + + /* + * Visit each BrowserParent in the tree formed by PBrowser and + * PBrowserBridge, including `this`. + */ + template <typename Callback> + void VisitAll(Callback aCallback) { + aCallback(this); + VisitAllDescendants(aCallback); + } + + /* + * Visit each BrowserParent in the tree formed by PBrowser and + * PBrowserBridge, excluding `this`. + */ + template <typename Callback> + void VisitAllDescendants(Callback aCallback) { + const auto& browserBridges = ManagedPBrowserBridgeParent(); + for (const auto& key : browserBridges) { + BrowserBridgeParent* browserBridge = + static_cast<BrowserBridgeParent*>(key); + BrowserParent* browserParent = browserBridge->GetBrowserParent(); + + aCallback(browserParent); + browserParent->VisitAllDescendants(aCallback); + } + } + + /* + * Visit each BrowserBridgeParent that is a child of this BrowserParent. + */ + template <typename Callback> + void VisitChildren(Callback aCallback) { + const auto& browserBridges = ManagedPBrowserBridgeParent(); + for (const auto& key : browserBridges) { + BrowserBridgeParent* browserBridge = + static_cast<BrowserBridgeParent*>(key); + aCallback(browserBridge); + } + } + + void SetOwnerElement(Element* aElement); + + void SetBrowserDOMWindow(nsIBrowserDOMWindow* aBrowserDOMWindow) { + mBrowserDOMWindow = aBrowserDOMWindow; + } + + void SwapFrameScriptsFrom(nsTArray<FrameScriptInfo>& aFrameScripts) { + aFrameScripts.SwapElements(mDelayedFrameScripts); + } + + void CacheFrameLoader(nsFrameLoader* aFrameLoader); + + void Destroy(); + + void RemoveWindowListeners(); + + void AddWindowListeners(); + + mozilla::ipc::IPCResult RecvDidUnsuppressPainting(); + mozilla::ipc::IPCResult RecvDidUnsuppressPaintingNormalPriority() { + return RecvDidUnsuppressPainting(); + } + mozilla::ipc::IPCResult RecvMoveFocus(const bool& aForward, + const bool& aForDocumentNavigation); + + mozilla::ipc::IPCResult RecvDropLinks(nsTArray<nsString>&& aLinks); + + // TODO: Use MOZ_CAN_RUN_SCRIPT when it gains IPDL support (bug 1539864) + MOZ_CAN_RUN_SCRIPT_BOUNDARY mozilla::ipc::IPCResult RecvReplyKeyEvent( + const WidgetKeyboardEvent& aEvent, const nsID& aUUID); + + // TODO: Use MOZ_CAN_RUN_SCRIPT when it gains IPDL support (bug 1539864) + MOZ_CAN_RUN_SCRIPT_BOUNDARY mozilla::ipc::IPCResult RecvAccessKeyNotHandled( + const WidgetKeyboardEvent& aEvent); + + mozilla::ipc::IPCResult RecvRegisterProtocolHandler(const nsString& aScheme, + nsIURI* aHandlerURI, + const nsString& aTitle, + nsIURI* aDocURI); + + mozilla::ipc::IPCResult RecvOnStateChange( + const WebProgressData& aWebProgressData, const RequestData& aRequestData, + const uint32_t aStateFlags, const nsresult aStatus, + const Maybe<WebProgressStateChangeData>& aStateChangeData); + + mozilla::ipc::IPCResult RecvOnProgressChange(const int32_t aCurTotalProgres, + const int32_t aMaxTotalProgress); + + mozilla::ipc::IPCResult RecvOnLocationChange( + const WebProgressData& aWebProgressData, const RequestData& aRequestData, + nsIURI* aLocation, const uint32_t aFlags, const bool aCanGoBack, + const bool aCanGoForward, + const Maybe<WebProgressLocationChangeData>& aLocationChangeData); + + mozilla::ipc::IPCResult RecvOnStatusChange(const nsString& aMessage); + + mozilla::ipc::IPCResult RecvNotifyContentBlockingEvent( + const uint32_t& aEvent, const RequestData& aRequestData, + const bool aBlocked, const nsACString& aTrackingOrigin, + nsTArray<nsCString>&& aTrackingFullHashes, + const Maybe<mozilla::ContentBlockingNotifier:: + StorageAccessPermissionGrantedReason>& aReason); + + mozilla::ipc::IPCResult RecvNavigationFinished(); + + already_AddRefed<nsIBrowser> GetBrowser(); + + already_AddRefed<CanonicalBrowsingContext> BrowsingContextForWebProgress( + const WebProgressData& aWebProgressData); + + mozilla::ipc::IPCResult RecvIntrinsicSizeOrRatioChanged( + const Maybe<IntrinsicSize>& aIntrinsicSize, + const Maybe<AspectRatio>& aIntrinsicRatio); + + mozilla::ipc::IPCResult RecvImageLoadComplete(const nsresult& aResult); + + mozilla::ipc::IPCResult RecvSyncMessage( + const nsString& aMessage, const ClonedMessageData& aData, + nsTArray<ipc::StructuredCloneData>* aRetVal); + + mozilla::ipc::IPCResult RecvAsyncMessage(const nsString& aMessage, + const ClonedMessageData& aData); + + mozilla::ipc::IPCResult RecvNotifyIMEFocus( + const ContentCache& aContentCache, + const widget::IMENotification& aEventMessage, + NotifyIMEFocusResolver&& aResolve); + + mozilla::ipc::IPCResult RecvNotifyIMETextChange( + const ContentCache& aContentCache, + const widget::IMENotification& aEventMessage); + + mozilla::ipc::IPCResult RecvNotifyIMECompositionUpdate( + const ContentCache& aContentCache, + const widget::IMENotification& aEventMessage); + + mozilla::ipc::IPCResult RecvNotifyIMESelection( + const ContentCache& aContentCache, + const widget::IMENotification& aEventMessage); + + mozilla::ipc::IPCResult RecvUpdateContentCache( + const ContentCache& aContentCache); + + mozilla::ipc::IPCResult RecvNotifyIMEMouseButtonEvent( + const widget::IMENotification& aEventMessage, bool* aConsumedByIME); + + mozilla::ipc::IPCResult RecvNotifyIMEPositionChange( + const ContentCache& aContentCache, + const widget::IMENotification& aEventMessage); + + mozilla::ipc::IPCResult RecvOnEventNeedingAckHandled( + const EventMessage& aMessage); + + mozilla::ipc::IPCResult RecvRequestIMEToCommitComposition( + const bool& aCancel, bool* aIsCommitted, nsString* aCommittedString); + + mozilla::ipc::IPCResult RecvGetInputContext(widget::IMEState* aIMEState); + + mozilla::ipc::IPCResult RecvSetInputContext( + const widget::InputContext& aContext, + const widget::InputContextAction& aAction); + + mozilla::ipc::IPCResult RecvRequestFocus(const bool& aCanRaise, + const CallerType aCallerType); + + mozilla::ipc::IPCResult RecvWheelZoomChange(bool aIncrease); + + mozilla::ipc::IPCResult RecvLookUpDictionary( + const nsString& aText, nsTArray<mozilla::FontRange>&& aFontRangeArray, + const bool& aIsVertical, const LayoutDeviceIntPoint& aPoint); + + mozilla::ipc::IPCResult RecvEnableDisableCommands( + const MaybeDiscarded<BrowsingContext>& aContext, const nsString& aAction, + nsTArray<nsCString>&& aEnabledCommands, + nsTArray<nsCString>&& aDisabledCommands); + + mozilla::ipc::IPCResult RecvSetCursor( + const nsCursor& aValue, const bool& aHasCustomCursor, + Maybe<BigBuffer>&& aCursorData, const uint32_t& aWidth, + const uint32_t& aHeight, const float& aResolutionX, + const float& aResolutionY, const uint32_t& aStride, + const gfx::SurfaceFormat& aFormat, const uint32_t& aHotspotX, + const uint32_t& aHotspotY, const bool& aForce); + + mozilla::ipc::IPCResult RecvSetLinkStatus(const nsString& aStatus); + + mozilla::ipc::IPCResult RecvShowTooltip(const uint32_t& aX, + const uint32_t& aY, + const nsString& aTooltip, + const nsString& aDirection); + + mozilla::ipc::IPCResult RecvHideTooltip(); + + mozilla::ipc::IPCResult RecvRespondStartSwipeEvent( + const uint64_t& aInputBlockId, const bool& aStartSwipe); + + mozilla::ipc::IPCResult RecvDispatchWheelEvent( + const mozilla::WidgetWheelEvent& aEvent); + + mozilla::ipc::IPCResult RecvDispatchMouseEvent( + const mozilla::WidgetMouseEvent& aEvent); + + mozilla::ipc::IPCResult RecvDispatchKeyboardEvent( + const mozilla::WidgetKeyboardEvent& aEvent); + + mozilla::ipc::IPCResult RecvDispatchTouchEvent( + const mozilla::WidgetTouchEvent& aEvent); + + mozilla::ipc::IPCResult RecvScrollRectIntoView( + const nsRect& aRect, const ScrollAxis& aVertical, + const ScrollAxis& aHorizontal, const ScrollFlags& aScrollFlags, + const int32_t& aAppUnitsPerDevPixel); + + already_AddRefed<PColorPickerParent> AllocPColorPickerParent( + const nsString& aTitle, const nsString& aInitialColor, + const nsTArray<nsString>& aDefaultColors); + + PVsyncParent* AllocPVsyncParent(); + + bool DeallocPVsyncParent(PVsyncParent* aActor); + +#ifdef ACCESSIBILITY + PDocAccessibleParent* AllocPDocAccessibleParent( + PDocAccessibleParent*, const uint64_t&, + const MaybeDiscardedBrowsingContext&); + bool DeallocPDocAccessibleParent(PDocAccessibleParent*); + virtual mozilla::ipc::IPCResult RecvPDocAccessibleConstructor( + PDocAccessibleParent* aDoc, PDocAccessibleParent* aParentDoc, + const uint64_t& aParentID, + const MaybeDiscardedBrowsingContext& aBrowsingContext) override; +#endif + + already_AddRefed<PSessionStoreParent> AllocPSessionStoreParent(); + + mozilla::ipc::IPCResult RecvNewWindowGlobal( + ManagedEndpoint<PWindowGlobalParent>&& aEndpoint, + const WindowGlobalInit& aInit); + + mozilla::ipc::IPCResult RecvIsWindowSupportingProtectedMedia( + const uint64_t& aOuterWindowID, + IsWindowSupportingProtectedMediaResolver&& aResolve); + + mozilla::ipc::IPCResult RecvIsWindowSupportingWebVR( + const uint64_t& aOuterWindowID, + IsWindowSupportingWebVRResolver&& aResolve); + + void LoadURL(nsDocShellLoadState* aLoadState); + + void ResumeLoad(uint64_t aPendingSwitchID); + + void InitRendering(); + bool AttachWindowRenderer(); + void MaybeShowFrame(); + + bool Show(const OwnerShowInfo&); + + void UpdateDimensions(const nsIntRect& aRect, const ScreenIntSize& aSize); + + DimensionInfo GetDimensionInfo(); + + nsresult UpdatePosition(); + + // Notify position update to all descendant documents in this browser parent. + // NOTE: This should use only for browsers in popup windows attached to the + // main browser window. + void NotifyPositionUpdatedForContentsInPopup(); + + void SizeModeChanged(const nsSizeMode& aSizeMode); + + void HandleAccessKey(const WidgetKeyboardEvent& aEvent, + nsTArray<uint32_t>& aCharCodes); + +#if defined(MOZ_WIDGET_ANDROID) + void DynamicToolbarMaxHeightChanged(ScreenIntCoord aHeight); + void DynamicToolbarOffsetChanged(ScreenIntCoord aOffset); +#endif + + void Activate(uint64_t aActionId); + + void Deactivate(bool aWindowLowering, uint64_t aActionId); + + void MouseEnterIntoWidget(); + + bool MapEventCoordinatesForChildProcess(mozilla::WidgetEvent* aEvent); + + void MapEventCoordinatesForChildProcess(const LayoutDeviceIntPoint& aOffset, + mozilla::WidgetEvent* aEvent); + + LayoutDeviceToCSSScale GetLayoutDeviceToCSSScale(); + + MOZ_CAN_RUN_SCRIPT_BOUNDARY mozilla::ipc::IPCResult + RecvRequestNativeKeyBindings(const uint32_t& aType, + const mozilla::WidgetKeyboardEvent& aEvent, + nsTArray<mozilla::CommandInt>* aCommands); + + mozilla::ipc::IPCResult RecvSynthesizeNativeKeyEvent( + const int32_t& aNativeKeyboardLayout, const int32_t& aNativeKeyCode, + const uint32_t& aModifierFlags, const nsString& aCharacters, + const nsString& aUnmodifiedCharacters, const uint64_t& aObserverId); + + mozilla::ipc::IPCResult RecvSynthesizeNativeMouseEvent( + const LayoutDeviceIntPoint& aPoint, const uint32_t& aNativeMessage, + const int16_t& aButton, const uint32_t& aModifierFlags, + const uint64_t& aObserverId); + + mozilla::ipc::IPCResult RecvSynthesizeNativeMouseMove( + const LayoutDeviceIntPoint& aPoint, const uint64_t& aObserverId); + + mozilla::ipc::IPCResult RecvSynthesizeNativeMouseScrollEvent( + const LayoutDeviceIntPoint& aPoint, const uint32_t& aNativeMessage, + const double& aDeltaX, const double& aDeltaY, const double& aDeltaZ, + const uint32_t& aModifierFlags, const uint32_t& aAdditionalFlags, + const uint64_t& aObserverId); + + mozilla::ipc::IPCResult RecvSynthesizeNativeTouchPoint( + const uint32_t& aPointerId, const TouchPointerState& aPointerState, + const LayoutDeviceIntPoint& aPoint, const double& aPointerPressure, + const uint32_t& aPointerOrientation, const uint64_t& aObserverId); + + mozilla::ipc::IPCResult RecvSynthesizeNativeTouchPadPinch( + const TouchpadGesturePhase& aEventPhase, const float& aScale, + const LayoutDeviceIntPoint& aPoint, const int32_t& aModifierFlags); + + mozilla::ipc::IPCResult RecvSynthesizeNativeTouchTap( + const LayoutDeviceIntPoint& aPoint, const bool& aLongTap, + const uint64_t& aObserverId); + + mozilla::ipc::IPCResult RecvClearNativeTouchSequence( + const uint64_t& aObserverId); + + mozilla::ipc::IPCResult RecvSynthesizeNativePenInput( + const uint32_t& aPointerId, const TouchPointerState& aPointerState, + const LayoutDeviceIntPoint& aPoint, const double& aPressure, + const uint32_t& aRotation, const int32_t& aTiltX, const int32_t& aTiltY, + const int32_t& aButton, const uint64_t& aObserverId); + + mozilla::ipc::IPCResult RecvSynthesizeNativeTouchpadDoubleTap( + const LayoutDeviceIntPoint& aPoint, const uint32_t& aModifierFlags); + + mozilla::ipc::IPCResult RecvSynthesizeNativeTouchpadPan( + const TouchpadGesturePhase& aEventPhase, + const LayoutDeviceIntPoint& aPoint, const double& aDeltaX, + const double& aDeltaY, const int32_t& aModifierFlags, + const uint64_t& aObserverId); + + mozilla::ipc::IPCResult RecvLockNativePointer(); + + mozilla::ipc::IPCResult RecvUnlockNativePointer(); + + /** + * The following Send*Event() marks aEvent as posted to remote process if + * it succeeded. So, you can check the result with + * aEvent.HasBeenPostedToRemoteProcess(). + */ + void SendRealMouseEvent(WidgetMouseEvent& aEvent); + + void SendRealDragEvent(WidgetDragEvent& aEvent, uint32_t aDragAction, + uint32_t aDropEffect, nsIPrincipal* aPrincipal, + nsIContentSecurityPolicy* aCsp); + + void SendMouseWheelEvent(WidgetWheelEvent& aEvent); + + /** + * Only when the event is synthesized, retrieving writing mode may flush + * the layout. + */ + MOZ_CAN_RUN_SCRIPT_BOUNDARY void SendRealKeyEvent( + WidgetKeyboardEvent& aEvent); + + void SendRealTouchEvent(WidgetTouchEvent& aEvent); + + /** + * Different from above Send*Event(), these methods return true if the + * event has been posted to the remote process or failed to do that but + * shouldn't be handled by following event listeners. + * If you need to check if it's actually posted to the remote process, + * you can refer aEvent.HasBeenPostedToRemoteProcess(). + */ + bool SendCompositionEvent(mozilla::WidgetCompositionEvent& aEvent); + + bool SendSelectionEvent(mozilla::WidgetSelectionEvent& aEvent); + + MOZ_CAN_RUN_SCRIPT_BOUNDARY bool SendHandleTap( + TapType aType, const LayoutDevicePoint& aPoint, Modifiers aModifiers, + const ScrollableLayerGuid& aGuid, uint64_t aInputBlockId); + + already_AddRefed<PFilePickerParent> AllocPFilePickerParent( + const nsString& aTitle, const nsIFilePicker::Mode& aMode); + + bool GetGlobalJSObject(JSContext* cx, JSObject** globalp); + + void StartPersistence(CanonicalBrowsingContext* aContext, + nsIWebBrowserPersistDocumentReceiver* aRecv, + ErrorResult& aRv); + + bool HandleQueryContentEvent(mozilla::WidgetQueryContentEvent& aEvent); + + bool SendInsertText(const nsString& aStringToInsert); + + bool SendPasteTransferable(IPCTransferableData&& aTransferableData, + const bool& aIsPrivateData, + nsIPrincipal* aRequestingPrincipal, + const nsContentPolicyType& aContentPolicyType); + + // Helper for transforming a point + LayoutDeviceIntPoint TransformPoint( + const LayoutDeviceIntPoint& aPoint, + const LayoutDeviceToLayoutDeviceMatrix4x4& aMatrix); + LayoutDevicePoint TransformPoint( + const LayoutDevicePoint& aPoint, + const LayoutDeviceToLayoutDeviceMatrix4x4& aMatrix); + + // Transform a coordinate from the parent process coordinate space to the + // child process coordinate space. + LayoutDeviceIntPoint TransformParentToChild( + const LayoutDeviceIntPoint& aPoint); + LayoutDevicePoint TransformParentToChild(const LayoutDevicePoint& aPoint); + + // Transform a coordinate from the child process coordinate space to the + // parent process coordinate space. + LayoutDeviceIntPoint TransformChildToParent( + const LayoutDeviceIntPoint& aPoint); + LayoutDevicePoint TransformChildToParent(const LayoutDevicePoint& aPoint); + LayoutDeviceIntRect TransformChildToParent(const LayoutDeviceIntRect& aRect); + + // Returns the matrix that transforms event coordinates from the coordinate + // space of the child process to the coordinate space of the parent process. + LayoutDeviceToLayoutDeviceMatrix4x4 GetChildToParentConversionMatrix(); + + void SetChildToParentConversionMatrix( + const Maybe<LayoutDeviceToLayoutDeviceMatrix4x4>& aMatrix, + const ScreenRect& aRemoteDocumentRect); + + // Returns the offset from the origin of our frameloader's nearest widget to + // the origin of its layout frame. This offset is used to translate event + // coordinates relative to the PuppetWidget origin in the child process. + // + // GOING AWAY. PLEASE AVOID ADDING CALLERS. Use the above tranformation + // methods instead. + LayoutDeviceIntPoint GetChildProcessOffset(); + + // Returns the offset from the on-screen origin of our top-level window's + // widget (including window decorations) to the origin of our frameloader's + // nearest widget. This offset is used to translate coordinates from the + // PuppetWidget's origin to absolute screen coordinates in the child. + LayoutDeviceIntPoint GetClientOffset(); + + void StopIMEStateManagement(); + + PPaymentRequestParent* AllocPPaymentRequestParent(); + + bool DeallocPPaymentRequestParent(PPaymentRequestParent* aActor); + + bool SendLoadRemoteScript(const nsAString& aURL, + const bool& aRunInGlobalScope); + + void LayerTreeUpdate(const LayersObserverEpoch& aEpoch, bool aActive); + + mozilla::ipc::IPCResult RecvInvokeDragSession( + nsTArray<IPCTransferableData>&& aTransferables, const uint32_t& aAction, + Maybe<BigBuffer>&& aVisualDnDData, const uint32_t& aStride, + const gfx::SurfaceFormat& aFormat, const LayoutDeviceIntRect& aDragRect, + nsIPrincipal* aPrincipal, nsIContentSecurityPolicy* aCsp, + const CookieJarSettingsArgs& aCookieJarSettingsArgs, + const MaybeDiscarded<WindowContext>& aSourceWindowContext, + const MaybeDiscarded<WindowContext>& aSourceTopWindowContext); + + void AddInitialDnDDataTo(IPCTransferableData* aTransferableData, + nsIPrincipal** aPrincipal); + + bool TakeDragVisualization(RefPtr<mozilla::gfx::SourceSurface>& aSurface, + LayoutDeviceIntRect* aDragRect); + + mozilla::ipc::IPCResult RecvEnsureLayersConnected( + CompositorOptions* aCompositorOptions); + + // LiveResizeListener implementation + void LiveResizeStarted() override; + void LiveResizeStopped() override; + + void SetReadyToHandleInputEvents() { mIsReadyToHandleInputEvents = true; } + bool IsReadyToHandleInputEvents() { return mIsReadyToHandleInputEvents; } + + void NavigateByKey(bool aForward, bool aForDocumentNavigation); + + bool GetDocShellIsActive(); + void SetDocShellIsActive(bool aDocShellIsActive); + + bool GetHasPresented(); + bool GetHasLayers(); + bool GetRenderLayers(); + void SetRenderLayers(bool aRenderLayers); + bool GetPriorityHint(); + void SetPriorityHint(bool aPriorityHint); + void PreserveLayers(bool aPreserveLayers); + void NotifyResolutionChanged(); + + bool CanCancelContentJS(nsIRemoteTab::NavigationType aNavigationType, + int32_t aNavigationIndex, + nsIURI* aNavigationURI) const; + + // Called when the BrowserParent is being destroyed or entering bfcache. + void Deactivated(); + + protected: + friend BrowserBridgeParent; + friend BrowserHost; + + void SetBrowserBridgeParent(BrowserBridgeParent* aBrowser); + void SetBrowserHost(BrowserHost* aBrowser); + + bool ReceiveMessage( + const nsString& aMessage, bool aSync, ipc::StructuredCloneData* aData, + nsTArray<ipc::StructuredCloneData>* aJSONRetVal = nullptr); + + virtual void ActorDestroy(ActorDestroyReason why) override; + + mozilla::ipc::IPCResult RecvRemoteIsReadyToHandleInputEvents(); + + mozilla::ipc::IPCResult RecvPaintWhileInterruptingJSNoOp( + const LayersObserverEpoch& aEpoch); + + mozilla::ipc::IPCResult RecvSetDimensions(mozilla::DimensionRequest aRequest, + const double& aScale); + + mozilla::ipc::IPCResult RecvShowCanvasPermissionPrompt( + const nsCString& aOrigin, const bool& aHideDoorHanger); + + mozilla::ipc::IPCResult RecvSetSystemFont(const nsCString& aFontName); + mozilla::ipc::IPCResult RecvGetSystemFont(nsCString* aFontName); + + mozilla::ipc::IPCResult RecvVisitURI(nsIURI* aURI, nsIURI* aLastVisitedURI, + const uint32_t& aFlags, + const uint64_t& aBrowserId); + + mozilla::ipc::IPCResult RecvQueryVisitedState( + nsTArray<RefPtr<nsIURI>>&& aURIs); + + mozilla::ipc::IPCResult RecvMaybeFireEmbedderLoadEvents( + EmbedderElementEventType aFireEventAtEmbeddingElement); + + mozilla::ipc::IPCResult RecvRequestPointerLock( + RequestPointerLockResolver&& aResolve); + mozilla::ipc::IPCResult RecvReleasePointerLock(); + + mozilla::ipc::IPCResult RecvRequestPointerCapture( + const uint32_t& aPointerId, RequestPointerCaptureResolver&& aResolve); + mozilla::ipc::IPCResult RecvReleasePointerCapture(const uint32_t& aPointerId); + + mozilla::ipc::IPCResult RecvShowDynamicToolbar(); + + private: + void SuppressDisplayport(bool aEnabled); + + void DestroyInternal(); + + void SetRenderLayersInternal(bool aEnabled); + + already_AddRefed<nsFrameLoader> GetFrameLoader( + bool aUseCachedFrameLoaderAfterDestroy = false) const; + + void TryCacheDPIAndScale(); + + bool AsyncPanZoomEnabled() const; + + // Update state prior to routing an APZ-aware event to the child process. + // |aOutTargetGuid| will contain the identifier + // of the APZC instance that handled the event. aOutTargetGuid may be null. + // |aOutInputBlockId| will contain the identifier of the input block + // that this event was added to, if there was one. aOutInputBlockId may be + // null. |aOutApzResponse| will contain the response that the APZ gave when + // processing the input block; this is used for generating appropriate + // pointercancel events. + void ApzAwareEventRoutingToChild(ScrollableLayerGuid* aOutTargetGuid, + uint64_t* aOutInputBlockId, + nsEventStatus* aOutApzResponse); + + // When dropping links we perform a roundtrip from + // Parent (SendRealDragEvent) -> Child -> Parent (RecvDropLinks) + // and have to ensure that the child did not modify links to be loaded. + bool QueryDropLinksForVerification(); + + void UnlockNativePointer(); + + void UpdateNativePointerLockCenter(nsIWidget* aWidget); + + private: + // This is used when APZ needs to find the BrowserParent associated with a + // layer to dispatch events. + typedef nsTHashMap<nsUint64HashKey, BrowserParent*> LayerToBrowserParentTable; + static LayerToBrowserParentTable* sLayerToBrowserParentTable; + + static void AddBrowserParentToTable(layers::LayersId aLayersId, + BrowserParent* aBrowserParent); + + static void RemoveBrowserParentFromTable(layers::LayersId aLayersId); + + // Keeps track of which BrowserParent has keyboard focus. + // If nullptr, the parent process has focus. + // Use UpdateFocus() to manage. + static BrowserParent* sFocus; + + // Keeps track of which top-level BrowserParent the keyboard focus is under. + // If nullptr, the parent process has focus. + // Use SetTopLevelWebFocus and UnsetTopLevelWebFocus to manage. + static BrowserParent* sTopLevelWebFocus; + + // Setter for sTopLevelWebFocus + static void SetTopLevelWebFocus(BrowserParent* aBrowserParent); + + // Unsetter for sTopLevelWebFocus; only unsets if argument matches + // current sTopLevelWebFocus. Use UnsetTopLevelWebFocusAll() to + // unset regardless of current value. + static void UnsetTopLevelWebFocus(BrowserParent* aBrowserParent); + + // Recomputes sFocus and returns it. + static BrowserParent* UpdateFocus(); + + // Keeps track of which BrowserParent the real mouse event is sent to. + static BrowserParent* sLastMouseRemoteTarget; + + // Unsetter for LastMouseRemoteTarget; only unsets if argument matches + // current sLastMouseRemoteTarget. + static void UnsetLastMouseRemoteTarget(BrowserParent* aBrowserParent); + + struct APZData { + bool operator==(const APZData& aOther) const { + return aOther.guid == guid && aOther.blockId == blockId && + aOther.apzResponse == apzResponse; + } + + bool operator!=(const APZData& aOther) const { return !(*this == aOther); } + + ScrollableLayerGuid guid; + uint64_t blockId; + nsEventStatus apzResponse; + }; + void SendRealTouchMoveEvent(WidgetTouchEvent& aEvent, APZData& aAPZData, + uint32_t aConsecutiveTouchMoveCount); + + void UpdateVsyncParentVsyncDispatcher(); + + public: + // Unsets sTopLevelWebFocus regardless of its current value. + static void UnsetTopLevelWebFocusAll(); + + // Recomputes focus when the BrowsingContext tree changes in a + // way that potentially invalidates the sFocus. + static void UpdateFocusFromBrowsingContext(); + + private: + TabId mTabId; + + RefPtr<ContentParent> mManager; + // The root browsing context loaded in this BrowserParent. + RefPtr<CanonicalBrowsingContext> mBrowsingContext; + nsCOMPtr<nsILoadContext> mLoadContext; + RefPtr<Element> mFrameElement; + nsCOMPtr<nsIBrowserDOMWindow> mBrowserDOMWindow; + // We keep a strong reference to the frameloader after we've sent the + // Destroy message and before we've received __delete__. This allows us to + // dispatch message manager messages during this time. + RefPtr<nsFrameLoader> mFrameLoader; + uint32_t mChromeFlags; + + // Pointer back to BrowserBridgeParent if there is one associated with + // this BrowserParent. This is non-owning to avoid cycles and is managed + // by the BrowserBridgeParent instance, which has the strong reference + // to this BrowserParent. + BrowserBridgeParent* mBrowserBridgeParent; + // Pointer to the BrowserHost that owns us, if any. This is mutually + // exclusive with mBrowserBridgeParent, and one is guaranteed to be + // non-null. + BrowserHost* mBrowserHost; + + ContentCacheInParent mContentCache; + + layout::RemoteLayerTreeOwner mRemoteLayerTreeOwner; + LayersObserverEpoch mLayerTreeEpoch; + + Maybe<LayoutDeviceToLayoutDeviceMatrix4x4> mChildToParentConversionMatrix; + Maybe<ScreenRect> mRemoteDocumentRect; + + // mWaitingReplyKeyboardEvents stores keyboard events which are sent from + // SendRealKeyEvent and the event will be back as a reply event. They are + // removed when RecvReplyKeyEvent receives corresponding event or newer event. + // Note that reply event will be used for handling non-reserved shortcut keys. + // Therefore, we need to store only important data for GlobalKeyHandler. + struct SentKeyEventData { + uint32_t mKeyCode; + uint32_t mCharCode; + uint32_t mPseudoCharCode; + KeyNameIndex mKeyNameIndex; + CodeNameIndex mCodeNameIndex; + Modifiers mModifiers; + nsID mUUID; + }; + nsTArray<SentKeyEventData> mWaitingReplyKeyboardEvents; + + nsIntRect mRect; + ScreenIntSize mDimensions; + float mDPI; + int32_t mRounding; + CSSToLayoutDeviceScale mDefaultScale; + bool mUpdatedDimensions; + nsSizeMode mSizeMode; + LayoutDeviceIntPoint mClientOffset; + LayoutDeviceIntPoint mChromeOffset; + + // When loading a new tab or window via window.open, the child is + // responsible for loading the URL it wants into the new BrowserChild. When + // the parent receives the CreateWindow message, though, it sends a LoadURL + // message, usually for about:blank. It's important for the about:blank load + // to get processed because the Firefox frontend expects every new window to + // immediately start loading something (see bug 1123090). However, we want + // the child to process the LoadURL message before it returns from + // ProvideWindow so that the URL sent from the parent doesn't override the + // child's URL. This is not possible using our IPC mechanisms. To solve the + // problem, we skip sending the LoadURL message in the parent and instead + // return the URL as a result from CreateWindow. The child simulates + // receiving a LoadURL message before returning from ProvideWindow. + // + // The mCreatingWindow flag is set while dispatching CreateWindow. During + // that time, any LoadURL calls are skipped. + bool mCreatingWindow; + + // When loading a new tab or window via window.open, we want to ensure that + // frame scripts for that tab are loaded before any scripts start to run in + // the window. We can't load the frame scripts the normal way, using + // separate IPC messages, since they won't be processed by the child until + // returning to the event loop, which is too late. Instead, we queue up + // frame scripts that we intend to load and send them as part of the + // CreateWindow response. Then BrowserChild loads them immediately. + nsTArray<FrameScriptInfo> mDelayedFrameScripts; + + // Cached cursor setting from BrowserChild. When the cursor is over the + // tab, it should take this appearance. + nsIWidget::Cursor mCursor; + + nsTArray<nsString> mVerifyDropLinks; + + RefPtr<VsyncParent> mVsyncParent; + +#ifdef DEBUG + int32_t mActiveSupressDisplayportCount = 0; +#endif + + // When true, we've initiated normal shutdown and notified our managing + // PContent. + bool mMarkedDestroying : 1; + // When true, the BrowserParent is invalid and we should not send IPC + // messages anymore. + bool mIsDestroyed : 1; + // True if the cursor changes from the BrowserChild should change the widget + // cursor. This happens whenever the cursor is in the remote target's + // region. + bool mRemoteTargetSetsCursor : 1; + + // If this flag is set, then the tab's layers will be preserved even when + // the tab's docshell is inactive. + bool mIsPreservingLayers : 1; + + // Holds the most recent value passed to the RenderLayers function. This + // does not necessarily mean that the layers have finished rendering + // and have uploaded - for that, use mHasLayers. + bool mRenderLayers : 1; + + // True if process should be set to a higher priority. + bool mPriorityHint : 1; + + // True if the compositor has reported that the BrowserChild has uploaded + // layers. + bool mHasLayers : 1; + + // True if this BrowserParent has had its layer tree sent to the compositor + // at least once. + bool mHasPresented : 1; + + // True when the remote browser is created and ready to handle input events. + bool mIsReadyToHandleInputEvents : 1; + + // True if we suppress the eMouseEnterIntoWidget event due to the + // BrowserChild was not ready to handle it. We will resend it when the next + // time we fire a mouse event and the BrowserChild is ready. + bool mIsMouseEnterIntoWidgetEventSuppressed : 1; + + // True after RecvLockNativePointer has been called and until + // UnlockNativePointer has been called. + bool mLockedNativePointer : 1; + + // True between ShowTooltip and HideTooltip messages. + bool mShowingTooltip : 1; +}; + +struct MOZ_STACK_CLASS BrowserParent::AutoUseNewTab final { + public: + explicit AutoUseNewTab(BrowserParent* aNewTab) : mNewTab(aNewTab) { + MOZ_ASSERT(!aNewTab->mCreatingWindow); + aNewTab->mCreatingWindow = true; + } + + ~AutoUseNewTab() { mNewTab->mCreatingWindow = false; } + + private: + RefPtr<BrowserParent> mNewTab; +}; + +} // namespace dom +} // namespace mozilla + +#endif // mozilla_dom_BrowserParent_h |