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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsChildView_h_
+#define nsChildView_h_
+
+// formal protocols
+#include "mozView.h"
+#ifdef ACCESSIBILITY
+# include "mozilla/a11y/LocalAccessible.h"
+# include "mozAccessibleProtocol.h"
+#endif
+
+#include "nsISupports.h"
+#include "nsBaseWidget.h"
+#include "nsIWeakReferenceUtils.h"
+#include "TextInputHandler.h"
+#include "nsCocoaUtils.h"
+#include "gfxQuartzSurface.h"
+#include "GLContextTypes.h"
+#include "mozilla/DataMutex.h"
+#include "mozilla/Mutex.h"
+#include "nsRegion.h"
+#include "mozilla/MouseEvents.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/webrender/WebRenderTypes.h"
+
+#include "nsString.h"
+#include "nsIDragService.h"
+#include "ViewRegion.h"
+#include "CFTypeRefPtr.h"
+
+#import <Carbon/Carbon.h>
+#import <Cocoa/Cocoa.h>
+#import <AppKit/NSOpenGL.h>
+
+class nsChildView;
+class nsCocoaWindow;
+
+namespace {
+class GLPresenter;
+} // namespace
+
+namespace mozilla {
+enum class NativeKeyBindingsType : uint8_t;
+
+class InputData;
+class PanGestureInput;
+class VibrancyManager;
+namespace layers {
+class GLManager;
+class IAPZCTreeManager;
+class NativeLayerRootCA;
+class NativeLayerCA;
+} // namespace layers
+namespace widget {
+class WidgetRenderingContext;
+} // namespace widget
+} // namespace mozilla
+
+@class PixelHostingView;
+
+@interface NSEvent (Undocumented)
+
+// Return Cocoa event's corresponding Carbon event. Not initialized (on
+// synthetic events) until the OS actually "sends" the event. This method
+// has been present in the same form since at least OS X 10.2.8.
+- (EventRef)_eventRef;
+
+// stage From 10.10.3 for force touch event
+@property(readonly) NSInteger stage;
+
+@end
+
+@interface NSView (Undocumented)
+
+// Undocumented method of one or more of NSFrameView's subclasses. Called
+// when one or more of the titlebar buttons needs to be repositioned, to
+// disappear, or to reappear (say if the window's style changes). If
+// 'redisplay' is true, the entire titlebar (the window's top 22 pixels) is
+// marked as needing redisplay. This method has been present in the same
+// format since at least OS X 10.5.
+- (void)_tileTitlebarAndRedisplay:(BOOL)redisplay;
+
+// The following undocumented methods are used to work around bug 1069658,
+// which is an Apple bug or design flaw that effects Yosemite. None of them
+// were present prior to Yosemite (OS X 10.10).
+- (NSView*)titlebarView; // Method of NSThemeFrame
+- (NSView*)titlebarContainerView; // Method of NSThemeFrame
+- (BOOL)transparent; // Method of NSTitlebarView and NSTitlebarContainerView
+- (void)setTransparent:(BOOL)transparent; // Method of NSTitlebarView and
+ // NSTitlebarContainerView
+
+// Available since 10.7.4:
+- (void)viewDidChangeBackingProperties;
+@end
+
+@interface ChildView : NSView <
+#ifdef ACCESSIBILITY
+ mozAccessible,
+#endif
+ mozView,
+ NSTextInputClient,
+ NSDraggingSource,
+ NSDraggingDestination,
+ NSPasteboardItemDataProvider> {
+ @private
+ // the nsChildView that created the view. It retains this NSView, so
+ // the link back to it must be weak.
+ nsChildView* mGeckoChild;
+
+ // Text input handler for mGeckoChild and us. Note that this is a weak
+ // reference. Ideally, this should be a strong reference but a ChildView
+ // object can live longer than the mGeckoChild that owns it. And if
+ // mTextInputHandler were a strong reference, this would make it difficult
+ // for Gecko's leak detector to detect leaked TextInputHandler objects.
+ // This is initialized by [mozView installTextInputHandler:aHandler] and
+ // cleared by [mozView uninstallTextInputHandler].
+ mozilla::widget::TextInputHandler* mTextInputHandler; // [WEAK]
+
+ // when mouseDown: is called, we store its event here (strong)
+ NSEvent* mLastMouseDownEvent;
+
+ // Needed for IME support in e10s mode. Strong.
+ NSEvent* mLastKeyDownEvent;
+
+ // Whether the last mouse down event was blocked from Gecko.
+ BOOL mBlockedLastMouseDown;
+
+ // when acceptsFirstMouse: is called, we store the event here (strong)
+ NSEvent* mClickThroughMouseDownEvent;
+
+ // WheelStart/Stop events should always come in pairs. This BOOL records the
+ // last received event so that, when we receive one of the events, we make
+ // sure to send its pair event first, in case we didn't yet for any reason.
+ BOOL mExpectingWheelStop;
+
+ // Whether we're inside updateRootCALayer at the moment.
+ BOOL mIsUpdatingLayer;
+
+ // Whether the drag and drop was performed.
+ BOOL mPerformedDrag;
+
+ // Holds our drag service across multiple drag calls. The reference to the
+ // service is obtained when the mouse enters the view and is released when
+ // the mouse exits or there is a drop. This prevents us from having to
+ // re-establish the connection to the service manager many times per second
+ // when handling |draggingUpdated:| messages.
+ nsIDragService* mDragService;
+
+ // Gestures support
+ //
+ // mGestureState is used to detect when Cocoa has called both
+ // magnifyWithEvent and rotateWithEvent within the same
+ // beginGestureWithEvent and endGestureWithEvent sequence. We
+ // discard the spurious gesture event so as not to confuse Gecko.
+ //
+ // mCumulativeRotation keeps track of the total amount of rotation
+ // performed during a rotate gesture so we can send that value with
+ // the final MozRotateGesture event.
+ enum {
+ eGestureState_None,
+ eGestureState_StartGesture,
+ eGestureState_MagnifyGesture,
+ eGestureState_RotateGesture
+ } mGestureState;
+ float mCumulativeRotation;
+
+#ifdef __LP64__
+ // Support for fluid swipe tracking.
+ BOOL* mCancelSwipeAnimation;
+#endif
+
+ // Whether this uses off-main-thread compositing.
+ BOOL mUsingOMTCompositor;
+
+ // Subviews of self, which act as container views for vibrancy views and
+ // non-draggable views.
+ NSView* mVibrancyViewsContainer; // [STRONG]
+ NSView* mNonDraggableViewsContainer; // [STRONG]
+
+ // The layer-backed view that hosts our drawing. Always non-null.
+ // This is a subview of self so that it can be ordered on top of
+ // mVibrancyViewsContainer.
+ PixelHostingView* mPixelHostingView;
+
+ // The CALayer that wraps Gecko's rendered contents. It's a sublayer of
+ // mPixelHostingView's backing layer. Always non-null.
+ CALayer* mRootCALayer; // [STRONG]
+
+ // Last pressure stage by trackpad's force click
+ NSInteger mLastPressureStage;
+}
+
+// class initialization
++ (void)initialize;
+
++ (void)registerViewForDraggedTypes:(NSView*)aView;
+
+// these are sent to the first responder when the window key status changes
+- (void)viewsWindowDidBecomeKey;
+- (void)viewsWindowDidResignKey;
+
+// Stop NSView hierarchy being changed during [ChildView drawRect:]
+- (void)delayedTearDown;
+
+- (void)handleMouseMoved:(NSEvent*)aEvent;
+
+- (void)sendMouseEnterOrExitEvent:(NSEvent*)aEvent
+ enter:(BOOL)aEnter
+ exitFrom:
+ (mozilla::WidgetMouseEvent::ExitFrom)aExitFrom;
+
+// Call this during operations that will likely trigger a main thread
+// CoreAnimation paint of the window, during which Gecko should do its own
+// painting and present the results atomically with that main thread
+// transaction. This method will suspend off-thread window updates so that the
+// upcoming paint can be atomic, and mark the layer as needing display so that
+// HandleMainThreadCATransaction gets called and Gecko gets a chance to paint.
+- (void)ensureNextCompositeIsAtomicWithMainThreadPaint;
+
+- (NSView*)vibrancyViewsContainer;
+- (NSView*)nonDraggableViewsContainer;
+- (NSView*)pixelHostingView;
+
+- (BOOL)isCoveringTitlebar;
+
+- (void)viewWillStartLiveResize;
+- (void)viewDidEndLiveResize;
+
+/*
+ * Gestures support
+ *
+ * The prototypes swipeWithEvent, beginGestureWithEvent, smartMagnifyWithEvent,
+ * rotateWithEvent and endGestureWithEvent were obtained from the following
+ * links:
+ * https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/NSResponder_Class/Reference/Reference.html
+ * https://developer.apple.com/library/mac/#releasenotes/Cocoa/AppKit.html
+ */
+- (void)swipeWithEvent:(NSEvent*)anEvent;
+- (void)beginGestureWithEvent:(NSEvent*)anEvent;
+- (void)magnifyWithEvent:(NSEvent*)anEvent;
+- (void)smartMagnifyWithEvent:(NSEvent*)anEvent;
+- (void)rotateWithEvent:(NSEvent*)anEvent;
+- (void)endGestureWithEvent:(NSEvent*)anEvent;
+
+- (void)scrollWheel:(NSEvent*)anEvent;
+
+- (void)setUsingOMTCompositor:(BOOL)aUseOMTC;
+
+- (NSEvent*)lastKeyDownEvent;
+
++ (uint32_t)sUniqueKeyEventId;
+
++ (NSMutableDictionary*)sNativeKeyEventsMap;
+@end
+
+class ChildViewMouseTracker {
+ public:
+ static void MouseMoved(NSEvent* aEvent);
+ static void MouseScrolled(NSEvent* aEvent);
+ static void OnDestroyView(ChildView* aView);
+ static void OnDestroyWindow(NSWindow* aWindow);
+ static BOOL WindowAcceptsEvent(NSWindow* aWindow, NSEvent* aEvent,
+ ChildView* aView, BOOL isClickThrough = NO);
+ static void MouseExitedWindow(NSEvent* aEvent);
+ static void MouseEnteredWindow(NSEvent* aEvent);
+ static void NativeMenuOpened();
+ static void NativeMenuClosed();
+ static void ReEvaluateMouseEnterState(NSEvent* aEvent = nil,
+ ChildView* aOldView = nil);
+ static void ResendLastMouseMoveEvent();
+ static ChildView* ViewForEvent(NSEvent* aEvent);
+
+ static ChildView* sLastMouseEventView;
+ static NSEvent* sLastMouseMoveEvent;
+ static NSWindow* sWindowUnderMouse;
+ static NSPoint sLastScrollEventScreenLocation;
+};
+
+//-------------------------------------------------------------------------
+//
+// nsChildView
+//
+//-------------------------------------------------------------------------
+
+class nsChildView final : public nsBaseWidget {
+ private:
+ typedef nsBaseWidget Inherited;
+ typedef mozilla::layers::IAPZCTreeManager IAPZCTreeManager;
+
+ public:
+ nsChildView();
+
+ // nsIWidget interface
+ [[nodiscard]] virtual nsresult Create(nsIWidget* aParent,
+ nsNativeWidget aNativeParent,
+ const LayoutDeviceIntRect& aRect,
+ InitData* = nullptr) override;
+
+ virtual void Destroy() override;
+
+ virtual void Show(bool aState) override;
+ virtual bool IsVisible() const override;
+
+ virtual void SetParent(nsIWidget* aNewParent) override;
+ virtual nsIWidget* GetParent(void) override;
+ virtual float GetDPI() override;
+
+ virtual void Move(double aX, double aY) override;
+ virtual void Resize(double aWidth, double aHeight, bool aRepaint) override;
+ virtual void Resize(double aX, double aY, double aWidth, double aHeight,
+ bool aRepaint) override;
+
+ virtual void Enable(bool aState) override;
+ virtual bool IsEnabled() const override;
+
+ virtual nsSizeMode SizeMode() override { return mSizeMode; }
+ virtual void SetSizeMode(nsSizeMode aMode) override { mSizeMode = aMode; }
+
+ virtual void SetFocus(Raise, mozilla::dom::CallerType aCallerType) override;
+ virtual LayoutDeviceIntRect GetBounds() override;
+ virtual LayoutDeviceIntRect GetClientBounds() override;
+ virtual LayoutDeviceIntRect GetScreenBounds() override;
+
+ // Refresh mBounds with up-to-date values from [mView frame].
+ // Only called if this nsChildView is the popup content view of a popup
+ // window. For popup windows, the nsIWidget interface to Gecko is provided by
+ // nsCocoaWindow, not by nsChildView. So nsCocoaWindow manages resize requests
+ // from Gecko, fires resize events, and resizes the native NSWindow and
+ // NSView.
+ void UpdateBoundsFromView();
+
+ // Returns the "backing scale factor" of the view's window, which is the
+ // ratio of pixels in the window's backing store to Cocoa points. Prior to
+ // HiDPI support in OS X 10.7, this was always 1.0, but in HiDPI mode it
+ // will be 2.0 (and might potentially other values as screen resolutions
+ // evolve). This gives the relationship between what Gecko calls "device
+ // pixels" and the Cocoa "points" coordinate system.
+ CGFloat BackingScaleFactor() const;
+
+ mozilla::DesktopToLayoutDeviceScale GetDesktopToDeviceScale() final {
+ return mozilla::DesktopToLayoutDeviceScale(BackingScaleFactor());
+ }
+
+ // Call if the window's backing scale factor changes - i.e., it is moved
+ // between HiDPI and non-HiDPI screens
+ void BackingScaleFactorChanged();
+
+ virtual double GetDefaultScaleInternal() override;
+
+ virtual int32_t RoundsWidgetCoordinatesTo() override;
+
+ virtual void Invalidate(const LayoutDeviceIntRect& aRect) override;
+ void EnsureContentLayerForMainThreadPainting();
+
+ virtual void* GetNativeData(uint32_t aDataType) override;
+ virtual LayoutDeviceIntPoint WidgetToScreenOffset() override;
+ virtual bool ShowsResizeIndicator(
+ LayoutDeviceIntRect* aResizerRect) override {
+ return false;
+ }
+
+ virtual nsresult DispatchEvent(mozilla::WidgetGUIEvent* aEvent,
+ nsEventStatus& aStatus) override;
+
+ virtual bool WidgetTypeSupportsAcceleration() override;
+ virtual bool ShouldUseOffMainThreadCompositing() override;
+
+ virtual void SetCursor(const Cursor&) override;
+
+ virtual nsresult SetTitle(const nsAString& title) override;
+
+ [[nodiscard]] virtual nsresult GetAttention(int32_t aCycleCount) override;
+
+ virtual bool HasPendingInputEvent() override;
+
+ bool SendEventToNativeMenuSystem(NSEvent* aEvent);
+ virtual void PostHandleKeyEvent(
+ mozilla::WidgetKeyboardEvent* aEvent) override;
+ virtual nsresult ActivateNativeMenuItemAt(
+ const nsAString& indexString) override;
+ virtual nsresult ForceUpdateNativeMenuAt(
+ const nsAString& indexString) override;
+ [[nodiscard]] virtual nsresult GetSelectionAsPlaintext(
+ nsAString& aResult) override;
+
+ virtual void SetInputContext(const InputContext& aContext,
+ const InputContextAction& aAction) override;
+ virtual InputContext GetInputContext() override;
+ virtual TextEventDispatcherListener* GetNativeTextEventDispatcherListener()
+ override;
+ [[nodiscard]] virtual nsresult AttachNativeKeyEvent(
+ mozilla::WidgetKeyboardEvent& aEvent) override;
+ MOZ_CAN_RUN_SCRIPT virtual bool GetEditCommands(
+ mozilla::NativeKeyBindingsType aType,
+ const mozilla::WidgetKeyboardEvent& aEvent,
+ nsTArray<mozilla::CommandInt>& aCommands) override;
+
+ virtual void SuppressAnimation(bool aSuppress) override;
+
+ virtual nsresult SynthesizeNativeKeyEvent(
+ int32_t aNativeKeyboardLayout, int32_t aNativeKeyCode,
+ uint32_t aModifierFlags, const nsAString& aCharacters,
+ const nsAString& aUnmodifiedCharacters, nsIObserver* aObserver) override;
+
+ virtual nsresult SynthesizeNativeMouseEvent(
+ LayoutDeviceIntPoint aPoint, NativeMouseMessage aNativeMessage,
+ mozilla::MouseButton aButton, nsIWidget::Modifiers aModifierFlags,
+ nsIObserver* aObserver) override;
+
+ virtual nsresult SynthesizeNativeMouseMove(LayoutDeviceIntPoint aPoint,
+ nsIObserver* aObserver) override {
+ return SynthesizeNativeMouseEvent(
+ aPoint, NativeMouseMessage::Move, mozilla::MouseButton::eNotPressed,
+ nsIWidget::Modifiers::NO_MODIFIERS, aObserver);
+ }
+ virtual nsresult SynthesizeNativeMouseScrollEvent(
+ LayoutDeviceIntPoint aPoint, uint32_t aNativeMessage, double aDeltaX,
+ double aDeltaY, double aDeltaZ, uint32_t aModifierFlags,
+ uint32_t aAdditionalFlags, nsIObserver* aObserver) override;
+ virtual nsresult SynthesizeNativeTouchPoint(uint32_t aPointerId,
+ TouchPointerState aPointerState,
+ LayoutDeviceIntPoint aPoint,
+ double aPointerPressure,
+ uint32_t aPointerOrientation,
+ nsIObserver* aObserver) override;
+
+ virtual nsresult SynthesizeNativeTouchpadDoubleTap(
+ LayoutDeviceIntPoint aPoint, uint32_t aModifierFlags) override;
+
+ // Mac specific methods
+ void WillPaintWindow();
+ bool PaintWindow(LayoutDeviceIntRegion aRegion);
+ bool PaintWindowInDrawTarget(mozilla::gfx::DrawTarget* aDT,
+ const LayoutDeviceIntRegion& aRegion,
+ const mozilla::gfx::IntSize& aSurfaceSize);
+
+ void PaintWindowInContentLayer();
+ void HandleMainThreadCATransaction();
+
+#ifdef ACCESSIBILITY
+ already_AddRefed<mozilla::a11y::LocalAccessible> GetDocumentAccessible();
+#endif
+
+ virtual void CreateCompositor() override;
+
+ virtual bool WidgetPaintsBackground() override { return true; }
+
+ virtual bool PreRender(
+ mozilla::widget::WidgetRenderingContext* aContext) override;
+ virtual void PostRender(
+ mozilla::widget::WidgetRenderingContext* aContext) override;
+ virtual RefPtr<mozilla::layers::NativeLayerRoot> GetNativeLayerRoot()
+ override;
+
+ virtual void UpdateThemeGeometries(
+ const nsTArray<ThemeGeometry>& aThemeGeometries) override;
+
+ virtual void UpdateWindowDraggingRegion(
+ const LayoutDeviceIntRegion& aRegion) override;
+ LayoutDeviceIntRegion GetNonDraggableRegion() {
+ return mNonDraggableRegion.Region();
+ }
+
+ virtual void LookUpDictionary(
+ const nsAString& aText,
+ const nsTArray<mozilla::FontRange>& aFontRangeArray,
+ const bool aIsVertical, const LayoutDeviceIntPoint& aPoint) override;
+
+ void ResetParent();
+
+ static bool DoHasPendingInputEvent();
+ static uint32_t GetCurrentInputEventCount();
+ static void UpdateCurrentInputEventCount();
+
+ NSView<mozView>* GetEditorView();
+
+ nsCocoaWindow* GetAppWindowWidget() const;
+
+ virtual void ReparentNativeWidget(nsIWidget* aNewParent) override;
+
+ mozilla::widget::TextInputHandler* GetTextInputHandler() {
+ return mTextInputHandler;
+ }
+
+ // unit conversion convenience functions
+ int32_t CocoaPointsToDevPixels(CGFloat aPts) const {
+ return nsCocoaUtils::CocoaPointsToDevPixels(aPts, BackingScaleFactor());
+ }
+ LayoutDeviceIntPoint CocoaPointsToDevPixels(const NSPoint& aPt) const {
+ return nsCocoaUtils::CocoaPointsToDevPixels(aPt, BackingScaleFactor());
+ }
+ LayoutDeviceIntPoint CocoaPointsToDevPixelsRoundDown(
+ const NSPoint& aPt) const {
+ return nsCocoaUtils::CocoaPointsToDevPixelsRoundDown(aPt,
+ BackingScaleFactor());
+ }
+ LayoutDeviceIntRect CocoaPointsToDevPixels(const NSRect& aRect) const {
+ return nsCocoaUtils::CocoaPointsToDevPixels(aRect, BackingScaleFactor());
+ }
+ CGFloat DevPixelsToCocoaPoints(int32_t aPixels) const {
+ return nsCocoaUtils::DevPixelsToCocoaPoints(aPixels, BackingScaleFactor());
+ }
+ NSRect DevPixelsToCocoaPoints(const LayoutDeviceIntRect& aRect) const {
+ return nsCocoaUtils::DevPixelsToCocoaPoints(aRect, BackingScaleFactor());
+ }
+
+ virtual LayoutDeviceIntPoint GetClientOffset() override;
+
+ void DispatchAPZWheelInputEvent(mozilla::InputData& aEvent);
+ nsEventStatus DispatchAPZInputEvent(mozilla::InputData& aEvent);
+
+ void DispatchDoubleTapGesture(mozilla::TimeStamp aEventTimeStamp,
+ LayoutDeviceIntPoint aScreenPosition,
+ mozilla::Modifiers aModifiers);
+
+ // Called when the main thread enters a phase during which visual changes
+ // are imminent and any layer updates on the compositor thread would interfere
+ // with visual atomicity.
+ // "Async" CATransactions are CATransactions which happen on a thread that's
+ // not the main thread.
+ void SuspendAsyncCATransactions();
+
+ // Called when we know that the current main thread paint will be completed
+ // once the main thread goes back to the event loop.
+ void MaybeScheduleUnsuspendAsyncCATransactions();
+
+ // Called from the runnable dispatched by
+ // MaybeScheduleUnsuspendAsyncCATransactions(). At this point we know that the
+ // main thread is done handling the visual change (such as a window resize)
+ // and we can start modifying CALayers from the compositor thread again.
+ void UnsuspendAsyncCATransactions();
+
+ // Called by nsCocoaWindow when the window's fullscreen state changes.
+ void UpdateFullscreen(bool aFullscreen);
+
+#ifdef DEBUG
+ // test only.
+ virtual nsresult SetHiDPIMode(bool aHiDPI) override;
+ virtual nsresult RestoreHiDPIMode() override;
+#endif
+
+ protected:
+ virtual ~nsChildView();
+
+ void ReportMoveEvent();
+ void ReportSizeEvent();
+
+ void TearDownView();
+
+ virtual already_AddRefed<nsIWidget> AllocateChildPopupWidget() override {
+ return nsIWidget::CreateTopLevelWindow();
+ }
+
+ void ConfigureAPZCTreeManager() override;
+ void ConfigureAPZControllerThread() override;
+
+ void UpdateVibrancy(const nsTArray<ThemeGeometry>& aThemeGeometries);
+ mozilla::VibrancyManager& EnsureVibrancyManager();
+
+ nsIWidget* GetWidgetForListenerEvents();
+
+ protected:
+ ChildView* mView; // my parallel cocoa view, [STRONG]
+ RefPtr<mozilla::widget::TextInputHandler> mTextInputHandler;
+ InputContext mInputContext;
+
+ NSView* mParentView;
+ nsIWidget* mParentWidget;
+
+#ifdef ACCESSIBILITY
+ // weak ref to this childview's associated mozAccessible for speed reasons
+ // (we get queried for it *a lot* but don't want to own it)
+ nsWeakPtr mAccessible;
+#endif
+
+ // Held while the compositor (or WR renderer) thread is compositing.
+ // Protects from tearing down the view during compositing and from presenting
+ // half-composited layers to the screen.
+ mozilla::Mutex mCompositingLock MOZ_UNANNOTATED;
+
+ mozilla::ViewRegion mNonDraggableRegion;
+
+ // Cached value of [mView backingScaleFactor], to avoid sending two obj-c
+ // messages (respondsToSelector, backingScaleFactor) every time we need to
+ // use it.
+ // ** We'll need to reinitialize this if the backing resolution changes. **
+ mutable CGFloat mBackingScaleFactor;
+
+ bool mVisible;
+ nsSizeMode mSizeMode;
+ bool mDrawing;
+ bool mIsDispatchPaint; // Is a paint event being dispatched
+
+ RefPtr<mozilla::layers::NativeLayerRootCA> mNativeLayerRoot;
+
+ // In BasicLayers mode, this is the CoreAnimation layer that contains the
+ // rendering from Gecko. It is a sublayer of mNativeLayerRoot's underlying
+ // wrapper layer.
+ // Lazily created by EnsureContentLayerForMainThreadPainting().
+ RefPtr<mozilla::layers::NativeLayerCA> mContentLayer;
+ RefPtr<mozilla::layers::SurfacePoolHandle> mPoolHandle;
+
+ // In BasicLayers mode, this is the invalid region of mContentLayer.
+ LayoutDeviceIntRegion mContentLayerInvalidRegion;
+
+ mozilla::UniquePtr<mozilla::VibrancyManager> mVibrancyManager;
+
+ RefPtr<mozilla::CancelableRunnable> mUnsuspendAsyncCATransactionsRunnable;
+
+ static uint32_t sLastInputEventCount;
+
+ // This is used by SynthesizeNativeTouchPoint to maintain state between
+ // multiple synthesized points
+ mozilla::UniquePtr<mozilla::MultiTouchInput> mSynthesizedTouchInput;
+};
+
+#endif // nsChildView_h_