gecko-dev/dom/ipc/TabParent.h

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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_tabs_TabParent_h
#define mozilla_tabs_TabParent_h
#include "js/TypeDecls.h"
#include "LiveResizeListener.h"
#include "mozilla/ContentCache.h"
#include "mozilla/dom/ipc/IdType.h"
#include "mozilla/dom/PBrowserParent.h"
#include "mozilla/dom/PContent.h"
#include "mozilla/dom/PFilePickerParent.h"
#include "mozilla/dom/TabContext.h"
#include "mozilla/EventForwards.h"
#include "mozilla/dom/File.h"
#include "mozilla/gfx/CrossProcessPaint.h"
#include "mozilla/layers/CompositorBridgeParent.h"
#include "mozilla/layout/RenderFrame.h"
#include "mozilla/RefPtr.h"
#include "mozilla/Move.h"
#include "nsCOMPtr.h"
#include "nsIAuthPromptProvider.h"
#include "nsIBrowserDOMWindow.h"
#include "nsIDOMEventListener.h"
#include "nsIKeyEventInPluginCallback.h"
#include "nsITabParent.h"
#include "nsIXULBrowserWindow.h"
#include "nsRefreshDriver.h"
#include "nsWeakReference.h"
#include "Units.h"
#include "nsIWidget.h"
class nsFrameLoader;
class nsIContent;
class nsIPrincipal;
class nsIURI;
class nsILoadContext;
class nsIDocShell;
class nsIWebBrowserPersistDocumentReceiver;
namespace mozilla {
namespace a11y {
class DocAccessibleParent;
}
namespace jsipc {
class CpowHolder;
} // namespace jsipc
namespace layers {
struct TextureFactoryIdentifier;
} // namespace layers
namespace widget {
struct IMENotification;
} // namespace widget
namespace gfx {
class SourceSurface;
class DataSourceSurface;
} // namespace gfx
namespace dom {
class ClonedMessageData;
class nsIContentParent;
class Element;
class DataTransfer;
namespace ipc {
class StructuredCloneData;
} // ipc namespace
class TabParent final : public PBrowserParent
, public nsIDOMEventListener
, public nsITabParent
, public nsIAuthPromptProvider
, public nsIKeyEventInPluginCallback
, public nsSupportsWeakReference
, public TabContext
, public LiveResizeListener
{
typedef mozilla::dom::ClonedMessageData ClonedMessageData;
virtual ~TabParent();
public:
// Helper class for ContentParent::RecvCreateWindow.
struct AutoUseNewTab;
// nsITabParent
NS_DECL_NSITABPARENT
// nsIDOMEventListener interfaces
NS_DECL_NSIDOMEVENTLISTENER
TabParent(nsIContentParent* aManager,
const TabId& aTabId,
const TabContext& aContext,
uint32_t aChromeFlags);
Element* GetOwnerElement() const { return mFrameElement; }
already_AddRefed<nsPIDOMWindowOuter> GetParentWindowOuter();
void SetOwnerElement(Element* aElement);
void CacheFrameLoader(nsFrameLoader* aFrameLoader);
nsIBrowserDOMWindow *GetBrowserDOMWindow() const { return mBrowserDOMWindow; }
void SetBrowserDOMWindow(nsIBrowserDOMWindow* aBrowserDOMWindow)
{
mBrowserDOMWindow = aBrowserDOMWindow;
}
void SetHasContentOpener(bool aHasContentOpener);
void SwapFrameScriptsFrom(nsTArray<FrameScriptInfo>& aFrameScripts)
{
aFrameScripts.SwapElements(mDelayedFrameScripts);
}
already_AddRefed<nsILoadContext> GetLoadContext();
already_AddRefed<nsIWidget> GetTopLevelWidget();
nsIXULBrowserWindow* GetXULBrowserWindow();
void Destroy();
void RemoveWindowListeners();
void AddWindowListeners();
virtual mozilla::ipc::IPCResult RecvMoveFocus(const bool& aForward,
const bool& aForDocumentNavigation) override;
virtual mozilla::ipc::IPCResult RecvSizeShellTo(const uint32_t& aFlags,
const int32_t& aWidth,
const int32_t& aHeight,
const int32_t& aShellItemWidth,
const int32_t& aShellItemHeight) override;
virtual mozilla::ipc::IPCResult RecvDropLinks(nsTArray<nsString>&& aLinks) override;
virtual mozilla::ipc::IPCResult RecvEvent(const RemoteDOMEvent& aEvent) override;
virtual mozilla::ipc::IPCResult RecvReplyKeyEvent(const WidgetKeyboardEvent& aEvent) override;
virtual mozilla::ipc::IPCResult
RecvAccessKeyNotHandled(const WidgetKeyboardEvent& aEvent) override;
virtual mozilla::ipc::IPCResult
RecvSetHasBeforeUnload(const bool& aHasBeforeUnload) override;
virtual mozilla::ipc::IPCResult
RecvBrowserFrameOpenWindow(PBrowserParent* aOpener,
const nsString& aURL,
const nsString& aName,
const nsString& aFeatures,
BrowserFrameOpenWindowResolver&& aResolve) override;
virtual mozilla::ipc::IPCResult
RecvSyncMessage(const nsString& aMessage,
const ClonedMessageData& aData,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal,
nsTArray<ipc::StructuredCloneData>* aRetVal) override;
virtual mozilla::ipc::IPCResult
RecvRpcMessage(const nsString& aMessage,
const ClonedMessageData& aData,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal,
nsTArray<ipc::StructuredCloneData>* aRetVal) override;
virtual mozilla::ipc::IPCResult RecvAsyncMessage(const nsString& aMessage,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal,
const ClonedMessageData& aData) override;
virtual mozilla::ipc::IPCResult
RecvNotifyIMEFocus(const ContentCache& aContentCache,
const widget::IMENotification& aEventMessage,
NotifyIMEFocusResolver&& aResolve) override;
virtual mozilla::ipc::IPCResult
RecvNotifyIMETextChange(const ContentCache& aContentCache,
const widget::IMENotification& aEventMessage) override;
virtual mozilla::ipc::IPCResult
RecvNotifyIMECompositionUpdate(const ContentCache& aContentCache,
const widget::IMENotification& aEventMessage) override;
virtual mozilla::ipc::IPCResult
RecvNotifyIMESelection(const ContentCache& aContentCache,
const widget::IMENotification& aEventMessage) override;
virtual mozilla::ipc::IPCResult
RecvUpdateContentCache(const ContentCache& aContentCache) override;
virtual mozilla::ipc::IPCResult
RecvNotifyIMEMouseButtonEvent(const widget::IMENotification& aEventMessage,
bool* aConsumedByIME) override;
virtual mozilla::ipc::IPCResult
RecvNotifyIMEPositionChange(const ContentCache& aContentCache,
const widget::IMENotification& aEventMessage) override;
virtual mozilla::ipc::IPCResult
RecvOnEventNeedingAckHandled(const EventMessage& aMessage) override;
virtual mozilla::ipc::IPCResult
RecvRequestIMEToCommitComposition(const bool& aCancel,
bool* aIsCommitted,
nsString* aCommittedString) override;
virtual mozilla::ipc::IPCResult
RecvStartPluginIME(const WidgetKeyboardEvent& aKeyboardEvent,
const int32_t& aPanelX,
const int32_t& aPanelY,
nsString* aCommitted) override;
virtual mozilla::ipc::IPCResult RecvSetPluginFocused(const bool& aFocused) override;
virtual mozilla::ipc::IPCResult RecvSetCandidateWindowForPlugin(
const widget::CandidateWindowPosition& aPosition) override;
virtual mozilla::ipc::IPCResult
RecvEnableIMEForPlugin(const bool& aEnable) override;
virtual mozilla::ipc::IPCResult
RecvDefaultProcOfPluginEvent(const WidgetPluginEvent& aEvent) override;
virtual mozilla::ipc::IPCResult RecvGetInputContext(
widget::IMEState* aIMEState) override;
virtual mozilla::ipc::IPCResult RecvSetInputContext(
const widget::InputContext& aContext,
const widget::InputContextAction& aAction) override;
// See nsIKeyEventInPluginCallback
virtual void HandledWindowedPluginKeyEvent(
const NativeEventData& aKeyEventData,
bool aIsConsumed) override;
virtual mozilla::ipc::IPCResult RecvOnWindowedPluginKeyEvent(
const NativeEventData& aKeyEventData) override;
virtual mozilla::ipc::IPCResult RecvRequestFocus(const bool& aCanRaise) override;
virtual mozilla::ipc::IPCResult RecvLookUpDictionary(
const nsString& aText,
nsTArray<mozilla::FontRange>&& aFontRangeArray,
const bool& aIsVertical,
const LayoutDeviceIntPoint& aPoint) override;
virtual mozilla::ipc::IPCResult
RecvEnableDisableCommands(const nsString& aAction,
nsTArray<nsCString>&& aEnabledCommands,
nsTArray<nsCString>&& aDisabledCommands) override;
virtual mozilla::ipc::IPCResult RecvSetCursor(const nsCursor& aValue,
const bool& aForce) override;
virtual mozilla::ipc::IPCResult RecvSetCustomCursor(const nsCString& aUri,
const uint32_t& aWidth,
const uint32_t& aHeight,
const uint32_t& aStride,
const gfx::SurfaceFormat& aFormat,
const uint32_t& aHotspotX,
const uint32_t& aHotspotY,
const bool& aForce) override;
virtual mozilla::ipc::IPCResult RecvSetStatus(const uint32_t& aType,
const nsString& aStatus) override;
virtual mozilla::ipc::IPCResult RecvShowTooltip(const uint32_t& aX,
const uint32_t& aY,
const nsString& aTooltip,
const nsString& aDirection) override;
virtual mozilla::ipc::IPCResult RecvHideTooltip() override;
virtual mozilla::ipc::IPCResult RecvSetNativeChildOfShareableWindow(const uintptr_t& childWindow) override;
virtual mozilla::ipc::IPCResult RecvDispatchFocusToTopLevelWindow() override;
virtual mozilla::ipc::IPCResult RecvRespondStartSwipeEvent(const uint64_t& aInputBlockId,
const bool& aStartSwipe) override;
virtual mozilla::ipc::IPCResult
RecvDispatchWheelEvent(const mozilla::WidgetWheelEvent& aEvent) override;
virtual mozilla::ipc::IPCResult
RecvDispatchMouseEvent(const mozilla::WidgetMouseEvent& aEvent) override;
virtual mozilla::ipc::IPCResult
RecvDispatchKeyboardEvent(const mozilla::WidgetKeyboardEvent& aEvent) override;
virtual PColorPickerParent*
AllocPColorPickerParent(const nsString& aTitle,
const nsString& aInitialColor) override;
virtual bool
DeallocPColorPickerParent(PColorPickerParent* aColorPicker) override;
virtual PDocAccessibleParent*
AllocPDocAccessibleParent(PDocAccessibleParent*, const uint64_t&,
const uint32_t&, const IAccessibleHolder&) override;
virtual bool DeallocPDocAccessibleParent(PDocAccessibleParent*) override;
virtual mozilla::ipc::IPCResult
RecvPDocAccessibleConstructor(PDocAccessibleParent* aDoc,
PDocAccessibleParent* aParentDoc,
const uint64_t& aParentID,
const uint32_t& aMsaaID,
const IAccessibleHolder& aDocCOMProxy) override;
/**
* Return the top level doc accessible parent for this tab.
*/
a11y::DocAccessibleParent* GetTopLevelDocAccessible() const;
void LoadURL(nsIURI* aURI);
void InitRendering();
void MaybeShowFrame();
// XXX/cjones: it's not clear what we gain by hiding these
// message-sending functions under a layer of indirection and
// eating the return values
void Show(const ScreenIntSize& aSize, bool aParentIsActive);
void UpdateDimensions(const nsIntRect& aRect, const ScreenIntSize& aSize);
DimensionInfo GetDimensionInfo();
nsresult UpdatePosition();
void SizeModeChanged(const nsSizeMode& aSizeMode);
void UIResolutionChanged();
void ThemeChanged();
void HandleAccessKey(const WidgetKeyboardEvent& aEvent,
nsTArray<uint32_t>& aCharCodes);
void Activate();
void Deactivate();
bool MapEventCoordinatesForChildProcess(mozilla::WidgetEvent* aEvent);
void MapEventCoordinatesForChildProcess(const LayoutDeviceIntPoint& aOffset,
mozilla::WidgetEvent* aEvent);
LayoutDeviceToCSSScale GetLayoutDeviceToCSSScale();
virtual mozilla::ipc::IPCResult
RecvRequestNativeKeyBindings(
const uint32_t& aType,
const mozilla::WidgetKeyboardEvent& aEvent,
nsTArray<mozilla::CommandInt>* aCommands) override;
virtual 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) override;
virtual mozilla::ipc::IPCResult
RecvSynthesizeNativeMouseEvent(const LayoutDeviceIntPoint& aPoint,
const uint32_t& aNativeMessage,
const uint32_t& aModifierFlags,
const uint64_t& aObserverId) override;
virtual mozilla::ipc::IPCResult
RecvSynthesizeNativeMouseMove(const LayoutDeviceIntPoint& aPoint,
const uint64_t& aObserverId) override;
virtual 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) override;
virtual 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) override;
virtual mozilla::ipc::IPCResult
RecvSynthesizeNativeTouchTap(const LayoutDeviceIntPoint& aPoint,
const bool& aLongTap,
const uint64_t& aObserverId) override;
virtual mozilla::ipc::IPCResult
RecvClearNativeTouchSequence(const uint64_t& aObserverId) override;
virtual mozilla::ipc::IPCResult
RecvSetPrefersReducedMotionOverrideForTest(const bool& aValue) override;
virtual mozilla::ipc::IPCResult
RecvResetPrefersReducedMotionOverrideForTest() override;
void SendMouseEvent(const nsAString& aType, float aX, float aY,
int32_t aButton, int32_t aClickCount,
int32_t aModifiers, bool aIgnoreRootScrollFrame);
/**
* 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,
const nsCString& aPrincipalURISpec);
void SendMouseWheelEvent(WidgetWheelEvent& aEvent);
void SendRealKeyEvent(WidgetKeyboardEvent& aEvent);
void SendRealTouchEvent(WidgetTouchEvent& aEvent);
void SendPluginEvent(WidgetPluginEvent& 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);
bool SendHandleTap(TapType aType,
const LayoutDevicePoint& aPoint,
Modifiers aModifiers,
const ScrollableLayerGuid& aGuid,
uint64_t aInputBlockId);
virtual PFilePickerParent*
AllocPFilePickerParent(const nsString& aTitle,
const int16_t& aMode) override;
virtual bool DeallocPFilePickerParent(PFilePickerParent* actor) override;
virtual PIndexedDBPermissionRequestParent*
AllocPIndexedDBPermissionRequestParent(const Principal& aPrincipal) override;
virtual mozilla::ipc::IPCResult
RecvPIndexedDBPermissionRequestConstructor(
PIndexedDBPermissionRequestParent* aActor,
const Principal& aPrincipal)
override;
virtual bool
DeallocPIndexedDBPermissionRequestParent(
PIndexedDBPermissionRequestParent* aActor)
override;
bool GetGlobalJSObject(JSContext* cx, JSObject** globalp);
NS_DECL_ISUPPORTS
NS_DECL_NSIAUTHPROMPTPROVIDER
void StartPersistence(uint64_t aOuterWindowID,
nsIWebBrowserPersistDocumentReceiver* aRecv,
ErrorResult& aRv);
bool HandleQueryContentEvent(mozilla::WidgetQueryContentEvent& aEvent);
bool SendPasteTransferable(const IPCDataTransfer& aDataTransfer,
const bool& aIsPrivateData,
const IPC::Principal& aRequestingPrincipal,
const uint32_t& aContentPolicyType);
static TabParent* GetFrom(nsFrameLoader* aFrameLoader);
static TabParent* GetFrom(nsITabParent* aTabParent);
static TabParent* GetFrom(PBrowserParent* aTabParent);
static TabParent* GetFrom(nsIContent* aContent);
static TabId GetTabIdFrom(nsIDocShell* docshell);
nsIContentParent* Manager() const { return mManager; }
/**
* 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 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;
const TabId GetTabId() const
{
return mTabId;
}
// 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.
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();
LayoutDevicePoint AdjustTapToChildWidget(const LayoutDevicePoint& aPoint);
/**
* Native widget remoting protocol for use with windowed plugins with e10s.
*/
virtual PPluginWidgetParent* AllocPPluginWidgetParent() override;
virtual bool
DeallocPPluginWidgetParent(PPluginWidgetParent* aActor) override;
virtual PPaymentRequestParent*
AllocPPaymentRequestParent() override;
virtual bool
DeallocPPaymentRequestParent(PPaymentRequestParent* aActor) override;
bool SendLoadRemoteScript(const nsString& aURL,
const bool& aRunInGlobalScope);
void LayerTreeUpdate(const LayersObserverEpoch& aEpoch, bool aActive);
void RequestRootPaint(gfx::CrossProcessPaint* aPaint, IntRect aRect, float aScale, nscolor aBackgroundColor);
void RequestSubPaint(gfx::CrossProcessPaint* aPaint, float aScale, nscolor aBackgroundColor);
virtual mozilla::ipc::IPCResult
RecvInvokeDragSession(nsTArray<IPCDataTransfer>&& aTransfers,
const uint32_t& aAction,
const OptionalShmem& aVisualDnDData,
const uint32_t& aStride, const gfx::SurfaceFormat& aFormat,
const LayoutDeviceIntRect& aDragRect,
const nsCString& aPrincipalURISpec) override;
void AddInitialDnDDataTo(DataTransfer* aDataTransfer,
nsACString& aPrincipalURISpec);
bool TakeDragVisualization(RefPtr<mozilla::gfx::SourceSurface>& aSurface,
LayoutDeviceIntRect* aDragRect);
layout::RenderFrame* GetRenderFrame();
mozilla::ipc::IPCResult RecvEnsureLayersConnected(CompositorOptions* aCompositorOptions) override;
// LiveResizeListener implementation
void LiveResizeStarted() override;
void LiveResizeStopped() override;
void SetReadyToHandleInputEvents() { mIsReadyToHandleInputEvents = true; }
bool IsReadyToHandleInputEvents() { return mIsReadyToHandleInputEvents; }
static bool AreRecordReplayTabsActive() {
return gNumActiveRecordReplayTabs != 0;
}
void NavigateByKey(bool aForward, bool aForDocumentNavigation);
protected:
bool ReceiveMessage(const nsString& aMessage,
bool aSync,
ipc::StructuredCloneData* aData,
mozilla::jsipc::CpowHolder* aCpows,
nsIPrincipal* aPrincipal,
nsTArray<ipc::StructuredCloneData>* aJSONRetVal = nullptr);
virtual mozilla::ipc::IPCResult RecvAsyncAuthPrompt(const nsCString& aUri,
const nsString& aRealm,
const uint64_t& aCallbackId) override;
virtual mozilla::ipc::IPCResult Recv__delete__() override;
virtual void ActorDestroy(ActorDestroyReason why) override;
Element* mFrameElement;
nsCOMPtr<nsIBrowserDOMWindow> mBrowserDOMWindow;
virtual mozilla::ipc::IPCResult RecvRemotePaintIsReady() override;
virtual mozilla::ipc::IPCResult RecvNotifyCompositorTransaction() override;
virtual mozilla::ipc::IPCResult RecvRemoteIsReadyToHandleInputEvents() override;
virtual mozilla::ipc::IPCResult RecvPaintWhileInterruptingJSNoOp(const LayersObserverEpoch& aEpoch) override;
virtual mozilla::ipc::IPCResult RecvSetDimensions(const uint32_t& aFlags,
const int32_t& aX, const int32_t& aY,
const int32_t& aCx, const int32_t& aCy) override;
virtual mozilla::ipc::IPCResult RecvShowCanvasPermissionPrompt(const nsCString& aFirstPartyURI) override;
mozilla::ipc::IPCResult
RecvSetSystemFont(const nsCString& aFontName) override;
mozilla::ipc::IPCResult
RecvGetSystemFont(nsCString* aFontName) override;
ContentCacheInParent mContentCache;
nsIntRect mRect;
ScreenIntSize mDimensions;
hal::ScreenOrientation mOrientation;
float mDPI;
int32_t mRounding;
CSSToLayoutDeviceScale mDefaultScale;
bool mUpdatedDimensions;
nsSizeMode mSizeMode;
LayoutDeviceIntPoint mClientOffset;
LayoutDeviceIntPoint mChromeOffset;
private:
void SuppressDisplayport(bool aEnabled);
void DestroyInternal();
void SetRenderLayersInternal(bool aEnabled, bool aForceRepaint);
already_AddRefed<nsFrameLoader>
GetFrameLoader(bool aUseCachedFrameLoaderAfterDestroy = false) const;
RefPtr<nsIContentParent> mManager;
void TryCacheDPIAndScale();
bool AsyncPanZoomEnabled() const;
// Cached value indicating the docshell active state of the remote browser.
bool mDocShellIsActive;
// 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 true, we've initiated normal shutdown and notified our managing PContent.
bool mMarkedDestroying;
// When true, the TabParent is invalid and we should not send IPC messages anymore.
bool mIsDestroyed;
uint32_t mChromeFlags;
nsTArray<nsTArray<IPCDataTransferItem>> mInitialDataTransferItems;
RefPtr<gfx::DataSourceSurface> mDnDVisualization;
bool mDragValid;
LayoutDeviceIntRect mDragRect;
nsCString mDragPrincipalURISpec;
nsCOMPtr<nsILoadContext> mLoadContext;
// 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;
TabId mTabId;
// When loading a new tab or window via window.open, the child is
// responsible for loading the URL it wants into the new TabChild. 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 and the URL is stored in
// mSkippedURL.
bool mCreatingWindow;
nsCString mDelayedURL;
// 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 TabChild loads them immediately.
nsTArray<FrameScriptInfo> mDelayedFrameScripts;
// Cached cursor setting from TabChild. When the cursor is over the tab,
// it should take this appearance.
nsCursor mCursor;
nsCOMPtr<imgIContainer> mCustomCursor;
uint32_t mCustomCursorHotspotX, mCustomCursorHotspotY;
// True if the cursor changes from the TabChild should change the widget
// cursor. This happens whenever the cursor is in the tab's region.
bool mTabSetsCursor;
bool mHasContentOpener;
// 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();
nsTArray<nsString> mVerifyDropLinks;
#ifdef DEBUG
int32_t mActiveSupressDisplayportCount;
#endif
ShowInfo GetShowInfo();
private:
// This is used when APZ needs to find the TabParent associated with a layer
// to dispatch events.
typedef nsDataHashtable<nsUint64HashKey, TabParent*> LayerToTabParentTable;
static LayerToTabParentTable* sLayerToTabParentTable;
static void AddTabParentToTable(layers::LayersId aLayersId, TabParent* aTabParent);
static void RemoveTabParentFromTable(layers::LayersId aLayersId);
layout::RenderFrame mRenderFrame;
LayersObserverEpoch mLayerTreeEpoch;
// If this flag is set, then the tab's layers will be preserved even when
// the tab's docshell is inactive.
bool mPreserveLayers;
// 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;
// Whether this is active for the ProcessPriorityManager or not.
bool mActiveInPriorityManager;
// True if the compositor has reported that the TabChild has uploaded
// layers.
bool mHasLayers;
// True if this TabParent has had its layer tree sent to the compositor
// at least once.
bool mHasPresented;
// True if at least one window hosted in the TabChild has added a
// beforeunload event listener.
bool mHasBeforeUnload;
// True when the remote browser is created and ready to handle input events.
bool mIsReadyToHandleInputEvents;
// True if we suppress the eMouseEnterIntoWidget event due to the TabChild was
// not ready to handle it. We will resend it when the next time we fire a
// mouse event and the TabChild is ready.
bool mIsMouseEnterIntoWidgetEventSuppressed;
// How many record/replay tabs have active docshells in this process.
static size_t gNumActiveRecordReplayTabs;
// Whether this tab is contributing to gNumActiveRecordReplayTabs.
bool mIsActiveRecordReplayTab;
// Update whether this is an active record/replay tab.
void SetIsActiveRecordReplayTab(bool aIsActive);
public:
static TabParent* GetTabParentFromLayersId(layers::LayersId aLayersId);
};
struct MOZ_STACK_CLASS TabParent::AutoUseNewTab final
{
public:
AutoUseNewTab(TabParent* aNewTab, nsCString* aURLToLoad)
: mNewTab(aNewTab), mURLToLoad(aURLToLoad)
{
MOZ_ASSERT(!aNewTab->mCreatingWindow);
aNewTab->mCreatingWindow = true;
aNewTab->mDelayedURL.Truncate();
}
~AutoUseNewTab()
{
mNewTab->mCreatingWindow = false;
*mURLToLoad = mNewTab->mDelayedURL;
}
private:
TabParent* mNewTab;
nsCString* mURLToLoad;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_tabs_TabParent_h