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Diffstat (limited to 'widget/gtk/nsWindow.h')
| -rw-r--r-- | widget/gtk/nsWindow.h | 994 |
1 files changed, 994 insertions, 0 deletions
diff --git a/widget/gtk/nsWindow.h b/widget/gtk/nsWindow.h new file mode 100644 index 0000000000..e394ced73b --- /dev/null +++ b/widget/gtk/nsWindow.h @@ -0,0 +1,994 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:expandtab:shiftwidth=2:tabstop=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 __nsWindow_h__ +#define __nsWindow_h__ + +#include <gdk/gdk.h> +#include <gtk/gtk.h> + +#include "CompositorWidget.h" +#include "MozContainer.h" +#include "VsyncSource.h" +#include "mozilla/EventForwards.h" +#include "mozilla/Maybe.h" +#include "mozilla/RefPtr.h" +#include "mozilla/TouchEvents.h" +#include "mozilla/UniquePtr.h" +#include "mozilla/widget/WindowSurface.h" +#include "mozilla/widget/WindowSurfaceProvider.h" +#include "nsBaseWidget.h" +#include "nsGkAtoms.h" +#include "nsIDragService.h" +#include "nsRefPtrHashtable.h" +#include "IMContextWrapper.h" + +#ifdef ACCESSIBILITY +# include "mozilla/a11y/LocalAccessible.h" +#endif + +#ifdef MOZ_X11 +# include <gdk/gdkx.h> +# include "X11UndefineNone.h" +#endif +#ifdef MOZ_WAYLAND +# include <gdk/gdkwayland.h> +# include "base/thread.h" +# include "WaylandVsyncSource.h" +# include "nsClipboardWayland.h" +#endif + +#ifdef MOZ_LOGGING + +# include "mozilla/Logging.h" +# include "nsTArray.h" +# include "Units.h" + +extern mozilla::LazyLogModule gWidgetLog; +extern mozilla::LazyLogModule gWidgetDragLog; +extern mozilla::LazyLogModule gWidgetPopupLog; +extern mozilla::LazyLogModule gWidgetVsync; + +# define LOG(str, ...) \ + MOZ_LOG(IsPopup() ? gWidgetPopupLog : gWidgetLog, \ + mozilla::LogLevel::Debug, \ + ("%s: " str, GetDebugTag().get(), ##__VA_ARGS__)) +# define LOGW(...) MOZ_LOG(gWidgetLog, mozilla::LogLevel::Debug, (__VA_ARGS__)) +# define LOGDRAG(...) \ + MOZ_LOG(gWidgetDragLog, mozilla::LogLevel::Debug, (__VA_ARGS__)) +# define LOG_POPUP(...) \ + MOZ_LOG(gWidgetPopupLog, mozilla::LogLevel::Debug, (__VA_ARGS__)) +# define LOG_VSYNC(...) \ + MOZ_LOG(gWidgetVsync, mozilla::LogLevel::Debug, (__VA_ARGS__)) +# define LOG_ENABLED() \ + (MOZ_LOG_TEST(gWidgetPopupLog, mozilla::LogLevel::Debug) || \ + MOZ_LOG_TEST(gWidgetLog, mozilla::LogLevel::Debug)) + +#else + +# define LOG(...) +# define LOGW(...) +# define LOGDRAG(...) +# define LOG_POPUP(...) +# define LOG_ENABLED() false + +#endif /* MOZ_LOGGING */ + +#if defined(MOZ_WAYLAND) && !defined(MOZ_X11) +typedef uintptr_t Window; +#endif + +class gfxPattern; +class nsIFrame; +#if !GTK_CHECK_VERSION(3, 18, 0) +struct _GdkEventTouchpadPinch; +typedef struct _GdkEventTouchpadPinch GdkEventTouchpadPinch; +#endif + +#if !GTK_CHECK_VERSION(3, 22, 0) +typedef enum { + GDK_ANCHOR_FLIP_X = 1 << 0, + GDK_ANCHOR_FLIP_Y = 1 << 1, + GDK_ANCHOR_SLIDE_X = 1 << 2, + GDK_ANCHOR_SLIDE_Y = 1 << 3, + GDK_ANCHOR_RESIZE_X = 1 << 4, + GDK_ANCHOR_RESIZE_Y = 1 << 5, + GDK_ANCHOR_FLIP = GDK_ANCHOR_FLIP_X | GDK_ANCHOR_FLIP_Y, + GDK_ANCHOR_SLIDE = GDK_ANCHOR_SLIDE_X | GDK_ANCHOR_SLIDE_Y, + GDK_ANCHOR_RESIZE = GDK_ANCHOR_RESIZE_X | GDK_ANCHOR_RESIZE_Y +} GdkAnchorHints; +#endif + +namespace mozilla { +enum class NativeKeyBindingsType : uint8_t; + +class TimeStamp; +#ifdef MOZ_X11 +class CurrentX11TimeGetter; +#endif +} // namespace mozilla + +class nsWindow final : public nsBaseWidget { + public: + typedef mozilla::gfx::DrawTarget DrawTarget; + typedef mozilla::WidgetEventTime WidgetEventTime; + typedef mozilla::WidgetKeyboardEvent WidgetKeyboardEvent; + typedef mozilla::widget::PlatformCompositorWidgetDelegate + PlatformCompositorWidgetDelegate; + + nsWindow(); + + static void ReleaseGlobals(); + + NS_INLINE_DECL_REFCOUNTING_INHERITED(nsWindow, nsBaseWidget) + + nsresult DispatchEvent(mozilla::WidgetGUIEvent* aEvent, + nsEventStatus& aStatus) override; + + // called when we are destroyed + void OnDestroy() override; + + // called to check and see if a widget's dimensions are sane + bool AreBoundsSane(void); + + // nsIWidget + using nsBaseWidget::Create; // for Create signature not overridden here + [[nodiscard]] nsresult Create(nsIWidget* aParent, + nsNativeWidget aNativeParent, + const LayoutDeviceIntRect& aRect, + nsWidgetInitData* aInitData) override; + void Destroy() override; + nsIWidget* GetParent() override; + float GetDPI() override; + double GetDefaultScaleInternal() override; + mozilla::DesktopToLayoutDeviceScale GetDesktopToDeviceScale() override; + mozilla::DesktopToLayoutDeviceScale GetDesktopToDeviceScaleByScreen() + override; + void SetParent(nsIWidget* aNewParent) override; + void SetModal(bool aModal) override; + bool IsVisible() const override; + void ConstrainPosition(bool aAllowSlop, int32_t* aX, int32_t* aY) override; + void SetSizeConstraints(const SizeConstraints& aConstraints) override; + void LockAspectRatio(bool aShouldLock) override; + void Move(double aX, double aY) override; + void Show(bool aState) override; + void Resize(double aWidth, double aHeight, bool aRepaint) override; + void Resize(double aX, double aY, double aWidth, double aHeight, + bool aRepaint) override; + bool IsEnabled() const override; + + void SetZIndex(int32_t aZIndex) override; + nsSizeMode SizeMode() override { return mSizeMode; } + void SetSizeMode(nsSizeMode aMode) override; + void GetWorkspaceID(nsAString& workspaceID) override; + void MoveToWorkspace(const nsAString& workspaceID) override; + void Enable(bool aState) override; + void SetFocus(Raise, mozilla::dom::CallerType aCallerType) override; + LayoutDeviceIntRect GetScreenBounds() override; + LayoutDeviceIntRect GetClientBounds() override; + LayoutDeviceIntSize GetClientSize() override; + LayoutDeviceIntPoint GetClientOffset() override { return mClientOffset; } + + // Recomputes the client offset according to our current window position. + // If aNotify is true, NotifyWindowMoved will be called on client offset + // changes. + // + // NOTE(emilio): It seems that as long any change here update either the size + // or the position of the window, we should be doing fine without notifying, + // but this is done to preserve existing behavior. + void RecomputeClientOffset(bool aNotify); + + void SetCursor(const Cursor&) override; + void Invalidate(const LayoutDeviceIntRect& aRect) override; + void* GetNativeData(uint32_t aDataType) override; + nsresult SetTitle(const nsAString& aTitle) override; + void SetIcon(const nsAString& aIconSpec) override; + void SetWindowClass(const nsAString& xulWinType) override; + LayoutDeviceIntPoint WidgetToScreenOffset() override; + void CaptureRollupEvents(bool aDoCapture) override; + [[nodiscard]] nsresult GetAttention(int32_t aCycleCount) override; + bool HasPendingInputEvent() override; + + bool PrepareForFullscreenTransition(nsISupports** aData) override; + void PerformFullscreenTransition(FullscreenTransitionStage aStage, + uint16_t aDuration, nsISupports* aData, + nsIRunnable* aCallback) override; + already_AddRefed<nsIScreen> GetWidgetScreen() override; + nsresult MakeFullScreen(bool aFullScreen) override; + void HideWindowChrome(bool aShouldHide) override; + + /** + * GetLastUserInputTime returns a timestamp for the most recent user input + * event. This is intended for pointer grab requests (including drags). + */ + static guint32 GetLastUserInputTime(); + + // utility method, -1 if no change should be made, otherwise returns a + // value that can be passed to gdk_window_set_decorations + gint ConvertBorderStyles(nsBorderStyle aStyle); + + mozilla::widget::IMContextWrapper* GetIMContext() const { return mIMContext; } + + bool DispatchCommandEvent(nsAtom* aCommand); + bool DispatchContentCommandEvent(mozilla::EventMessage aMsg); + + // event callbacks + gboolean OnExposeEvent(cairo_t* cr); + gboolean OnConfigureEvent(GtkWidget* aWidget, GdkEventConfigure* aEvent); + void OnMap(); + void OnUnmap(); + void OnUnrealize(); + void OnSizeAllocate(GtkAllocation* aAllocation); + void OnDeleteEvent(); + void OnEnterNotifyEvent(GdkEventCrossing* aEvent); + void OnLeaveNotifyEvent(GdkEventCrossing* aEvent); + void OnMotionNotifyEvent(GdkEventMotion* aEvent); + void OnButtonPressEvent(GdkEventButton* aEvent); + void OnButtonReleaseEvent(GdkEventButton* aEvent); + void OnContainerFocusInEvent(GdkEventFocus* aEvent); + void OnContainerFocusOutEvent(GdkEventFocus* aEvent); + gboolean OnKeyPressEvent(GdkEventKey* aEvent); + gboolean OnKeyReleaseEvent(GdkEventKey* aEvent); + + void OnScrollEvent(GdkEventScroll* aEvent); + + void OnWindowStateEvent(GtkWidget* aWidget, GdkEventWindowState* aEvent); + void OnDragDataReceivedEvent(GtkWidget* aWidget, GdkDragContext* aDragContext, + gint aX, gint aY, + GtkSelectionData* aSelectionData, guint aInfo, + guint aTime, gpointer aData); + gboolean OnPropertyNotifyEvent(GtkWidget* aWidget, GdkEventProperty* aEvent); + gboolean OnTouchEvent(GdkEventTouch* aEvent); + gboolean OnTouchpadPinchEvent(GdkEventTouchpadPinch* aEvent); + + gint GetInputRegionMarginInGdkCoords(); + + void UpdateTopLevelOpaqueRegion(); + + already_AddRefed<mozilla::gfx::DrawTarget> StartRemoteDrawingInRegion( + const LayoutDeviceIntRegion& aInvalidRegion, + mozilla::layers::BufferMode* aBufferMode) override; + void EndRemoteDrawingInRegion( + mozilla::gfx::DrawTarget* aDrawTarget, + const LayoutDeviceIntRegion& aInvalidRegion) override; + + void SetProgress(unsigned long progressPercent); + + RefPtr<mozilla::VsyncDispatcher> GetVsyncDispatcher() override; + bool SynchronouslyRepaintOnResize() override; + + void OnDPIChanged(void); + void OnCheckResize(void); + void OnCompositedChanged(void); + void OnScaleChanged(); + void DispatchResized(); + + static guint32 sLastButtonPressTime; + + MozContainer* GetMozContainer() { return mContainer; } + LayoutDeviceIntSize GetMozContainerSize(); + GdkWindow* GetGdkWindow() const { return mGdkWindow; }; + GdkWindow* GetToplevelGdkWindow() const; + GtkWidget* GetGtkWidget() const { return mShell; } + nsIFrame* GetFrame() const; + nsWindow* GetEffectiveParent(); + bool IsDestroyed() const { return mIsDestroyed; } + bool IsMapped() const { return mIsMapped; } + bool IsPopup() const; + bool IsWaylandPopup() const; + bool IsPIPWindow() const { return mIsPIPWindow; }; + bool IsDragPopup() { return mIsDragPopup; }; + + nsAutoCString GetDebugTag() const; + + void DispatchDragEvent(mozilla::EventMessage aMsg, + const LayoutDeviceIntPoint& aRefPoint, guint aTime); + static void UpdateDragStatus(GdkDragContext* aDragContext, + nsIDragService* aDragService); + void SetDragSource(GdkDragContext* aSourceDragContext); + + WidgetEventTime GetWidgetEventTime(guint32 aEventTime); + mozilla::TimeStamp GetEventTimeStamp(guint32 aEventTime); +#ifdef MOZ_X11 + mozilla::CurrentX11TimeGetter* GetCurrentTimeGetter(); +#endif + + void SetInputContext(const InputContext& aContext, + const InputContextAction& aAction) override; + InputContext GetInputContext() override; + TextEventDispatcherListener* GetNativeTextEventDispatcherListener() override; + MOZ_CAN_RUN_SCRIPT bool GetEditCommands( + mozilla::NativeKeyBindingsType aType, + const mozilla::WidgetKeyboardEvent& aEvent, + nsTArray<mozilla::CommandInt>& aCommands) override; + + // These methods are for toplevel windows only. + void ResizeTransparencyBitmap(); + void ApplyTransparencyBitmap(); + void ClearTransparencyBitmap(); + + void SetTransparencyMode(nsTransparencyMode aMode) override; + nsTransparencyMode GetTransparencyMode() override; + void SetInputRegion(const InputRegion&) override; + nsresult UpdateTranslucentWindowAlphaInternal(const nsIntRect& aRect, + uint8_t* aAlphas, + int32_t aStride); + void ReparentNativeWidget(nsIWidget* aNewParent) override; + + void UpdateTitlebarTransparencyBitmap(); + + nsresult SynthesizeNativeMouseEvent(LayoutDeviceIntPoint aPoint, + NativeMouseMessage aNativeMessage, + mozilla::MouseButton aButton, + nsIWidget::Modifiers aModifierFlags, + nsIObserver* aObserver) override; + + nsresult SynthesizeNativeMouseMove(LayoutDeviceIntPoint aPoint, + nsIObserver* aObserver) override { + return SynthesizeNativeMouseEvent( + aPoint, NativeMouseMessage::Move, mozilla::MouseButton::eNotPressed, + nsIWidget::Modifiers::NO_MODIFIERS, aObserver); + } + + nsresult SynthesizeNativeMouseScrollEvent( + LayoutDeviceIntPoint aPoint, uint32_t aNativeMessage, double aDeltaX, + double aDeltaY, double aDeltaZ, uint32_t aModifierFlags, + uint32_t aAdditionalFlags, nsIObserver* aObserver) override; + + nsresult SynthesizeNativeTouchPoint(uint32_t aPointerId, + TouchPointerState aPointerState, + LayoutDeviceIntPoint aPoint, + double aPointerPressure, + uint32_t aPointerOrientation, + nsIObserver* aObserver) override; + + nsresult SynthesizeNativeTouchPadPinch(TouchpadGesturePhase aEventPhase, + float aScale, + LayoutDeviceIntPoint aPoint, + int32_t aModifierFlags) override; + + nsresult SynthesizeNativeTouchpadPan(TouchpadGesturePhase aEventPhase, + LayoutDeviceIntPoint aPoint, + double aDeltaX, double aDeltaY, + int32_t aModifierFlags, + nsIObserver* aObserver) override; + + void GetCompositorWidgetInitData( + mozilla::widget::CompositorWidgetInitData* aInitData) override; + + nsresult SetNonClientMargins(LayoutDeviceIntMargin& aMargins) override; + void SetDrawsInTitlebar(bool aState) override; + mozilla::LayoutDeviceIntCoord GetTitlebarRadius(); + LayoutDeviceIntRect GetTitlebarRect(); + void UpdateWindowDraggingRegion( + const LayoutDeviceIntRegion& aRegion) override; + + // HiDPI scale conversion + gint GdkCeiledScaleFactor(); + bool UseFractionalScale() const; + double FractionalScaleFactor(); + + // To GDK + gint DevicePixelsToGdkCoordRoundUp(int); + gint DevicePixelsToGdkCoordRoundDown(int); + GdkPoint DevicePixelsToGdkPointRoundDown(const LayoutDeviceIntPoint&); + GdkRectangle DevicePixelsToGdkSizeRoundUp(const LayoutDeviceIntSize&); + GdkRectangle DevicePixelsToGdkRectRoundOut(const LayoutDeviceIntRect&); + + // From GDK + int GdkCoordToDevicePixels(gint); + LayoutDeviceIntPoint GdkPointToDevicePixels(const GdkPoint&); + LayoutDeviceIntPoint GdkEventCoordsToDevicePixels(gdouble aX, gdouble aY); + LayoutDeviceIntRect GdkRectToDevicePixels(const GdkRectangle&); + + bool WidgetTypeSupportsAcceleration() override; + + nsresult SetSystemFont(const nsCString& aFontName) override; + nsresult GetSystemFont(nsCString& aFontName) override; + + typedef enum { + GTK_DECORATION_SYSTEM, // CSD including shadows + GTK_DECORATION_CLIENT, // CSD without shadows + GTK_DECORATION_NONE, // WM does not support CSD at all + } GtkWindowDecoration; + /** + * Get the support of Client Side Decoration by checking the desktop + * environment. + */ + static GtkWindowDecoration GetSystemGtkWindowDecoration(); + + static bool GetTopLevelWindowActiveState(nsIFrame* aFrame); + static bool TitlebarUseShapeMask(); + bool IsRemoteContent() { return HasRemoteContent(); } + void NativeMoveResizeWaylandPopupCallback(const GdkRectangle* aFinalSize, + bool aFlippedX, bool aFlippedY); + static bool IsToplevelWindowTransparent(); + + static nsWindow* GetFocusedWindow(); + +#ifdef MOZ_WAYLAND + // Use xdg-activation protocol to transfer focus from gFocusWindow to aWindow. + static void TransferFocusToWaylandWindow(nsWindow* aWindow); + void FocusWaylandWindow(const char* aTokenID); + + bool GetCSDDecorationOffset(int* aDx, int* aDy); + void SetEGLNativeWindowSize(const LayoutDeviceIntSize& aEGLWindowSize); + void WaylandDragWorkaround(GdkEventButton* aEvent); + + wl_display* GetWaylandDisplay(); + void CreateCompositorVsyncDispatcher() override; + LayoutDeviceIntPoint GetNativePointerLockCenter() { + return mNativePointerLockCenter; + } + void SetNativePointerLockCenter( + const LayoutDeviceIntPoint& aLockCenter) override; + void LockNativePointer() override; + void UnlockNativePointer() override; + LayoutDeviceIntSize GetMoveToRectPopupSize() const override { + return mMoveToRectPopupSize; + }; +#endif + + typedef enum { + // WebRender compositor is enabled + COMPOSITOR_ENABLED, + // WebRender compositor is paused as we're repainting whole window and + // we're waiting for content process to update page content. + COMPOSITOR_PAUSED_FLICKERING + } WindowCompositorState; + + // Pause compositor to avoid rendering artifacts from content process. + void ResumeCompositorImpl(); + void ResumeCompositorFlickering(); + void ResumeCompositorFromCompositorThread(); + void PauseCompositorFlickering(); + bool IsWaitingForCompositorResume(); + + // Force hide this window, remove compositor etc. to avoid + // rendering queue blocking (see Bug 1782948). + void ClearRenderingQueue(); + + bool ApplyEnterLeaveMutterWorkaround(); + + void NotifyOcclusionState(mozilla::widget::OcclusionState aState) override; + + static nsWindow* GetWindow(GdkWindow* window); + + protected: + virtual ~nsWindow(); + + // event handling code + void DispatchActivateEvent(void); + void DispatchDeactivateEvent(void); + void MaybeDispatchResized(); + void DispatchPanGesture(mozilla::PanGestureInput& aPanInput); + + void RegisterTouchWindow() override; + + nsCOMPtr<nsIWidget> mParent; + nsPopupType mPopupHint{}; + int mWindowScaleFactor = 1; + + void UpdateAlpha(mozilla::gfx::SourceSurface* aSourceSurface, + nsIntRect aBoundsRect); + + void NativeMoveResize(bool aMoved, bool aResized); + + void NativeShow(bool aAction); + void SetHasMappedToplevel(bool aState); + LayoutDeviceIntSize GetSafeWindowSize(LayoutDeviceIntSize aSize); + + void DispatchContextMenuEventFromMouseEvent( + uint16_t domButton, GdkEventButton* aEvent, + const mozilla::LayoutDeviceIntPoint& aRefPoint); + + void TryToShowNativeWindowMenu(GdkEventButton* aEvent); + + void WaylandStartVsync(); + void WaylandStopVsync(); + void DestroyChildWindows(); + GtkWidget* GetToplevelWidget() const; + nsWindow* GetContainerWindow() const; + Window GetX11Window(); + bool GetShapedState(); + void EnsureGdkWindow(); + void SetUrgencyHint(GtkWidget* top_window, bool state); + void SetDefaultIcon(void); + void SetWindowDecoration(nsBorderStyle aStyle); + void InitButtonEvent(mozilla::WidgetMouseEvent& aEvent, + GdkEventButton* aGdkEvent, + const mozilla::LayoutDeviceIntPoint& aRefPoint); + bool CheckForRollup(gdouble aMouseX, gdouble aMouseY, bool aIsWheel, + bool aAlwaysRollup); + void CheckForRollupDuringGrab() { CheckForRollup(0, 0, false, true); } + + bool GetDragInfo(mozilla::WidgetMouseEvent* aMouseEvent, GdkWindow** aWindow, + gint* aButton, gint* aRootX, gint* aRootY); + nsIWidgetListener* GetListener(); + + nsWindow* GetTransientForWindowIfPopup(); + bool IsHandlingTouchSequence(GdkEventSequence* aSequence); + + void ResizeInt(const mozilla::Maybe<LayoutDeviceIntPoint>& aMove, + LayoutDeviceIntSize aSize); + void NativeMoveResizeWaylandPopup(bool aMove, bool aResize); + + // Returns true if the given point (in device pixels) is within a resizer + // region of the window. Only used when drawing decorations client side. + bool CheckResizerEdge(LayoutDeviceIntPoint aPoint, GdkWindowEdge& aOutEdge); + + GtkTextDirection GetTextDirection(); + + void AddCSDDecorationSize(int* aWidth, int* aHeight); + + void CreateAndPutGdkScrollEvent(mozilla::LayoutDeviceIntPoint aPoint, + double aDeltaX, double aDeltaY); + + nsCString mGtkWindowAppName; + nsCString mGtkWindowRoleName; + void RefreshWindowClass(); + + GtkWidget* mShell = nullptr; + MozContainer* mContainer = nullptr; + GdkWindow* mGdkWindow = nullptr; + PlatformCompositorWidgetDelegate* mCompositorWidgetDelegate = nullptr; + mozilla::Atomic<WindowCompositorState, mozilla::Relaxed> mCompositorState{ + COMPOSITOR_ENABLED}; + // This is used in COMPOSITOR_PAUSED_FLICKERING mode only to resume compositor + // in some reasonable time when page content is not updated. + guint mCompositorPauseTimeoutID = 0; + + // The actual size mode that's in effect. + nsSizeMode mSizeMode = nsSizeMode_Normal; + // The last size mode we've requested. This might not match mSizeMode if + // there's a request to change the size mode in progress. + nsSizeMode mLastSizeModeRequest = nsSizeMode_Normal; + nsSizeMode mLastSizeModeBeforeFullscreen = nsSizeMode_Normal; + + float mAspectRatio = 0.0f; + float mAspectRatioSaved = 0.0f; + + // The size requested, which might not be reflected in mBounds. Used in + // WaylandPopupSetDirectPosition() to remember intended size for popup + // positioning, in LockAspect() to remember the intended aspect ratio, and + // to remember a size requested while waiting for moved-to-rect when + // OnSizeAllocate() might change mBounds.Size(). + LayoutDeviceIntSize mLastSizeRequest; + LayoutDeviceIntPoint mClientOffset; + // Indicates a new size that still needs to be dispatched. + LayoutDeviceIntSize mNeedsDispatchSize = LayoutDeviceIntSize(-1, -1); + + // This field omits duplicate scroll events caused by GNOME bug 726878. + guint32 mLastScrollEventTime = GDK_CURRENT_TIME; + mozilla::ScreenCoord mLastPinchEventSpan; + + struct TouchpadPinchGestureState { + // Focus point of the PHASE_BEGIN event + ScreenPoint mBeginFocus; + + // Focus point of the most recent PHASE_UPDATE event + ScreenPoint mCurrentFocus; + }; + + // Used for handling touchpad pinch gestures + ScreenPoint mCurrentTouchpadFocus; + + // Used for synthesizing touchpad pinch gestures + TouchpadPinchGestureState mCurrentSynthesizedTouchpadPinch; + + // Used for synthesizing touchpad pan gestures + struct TouchpadPanGestureState { + mozilla::Maybe<TouchpadGesturePhase> mTouchpadGesturePhase; + uint64_t mSavedObserver = 0; + }; + + // Used for synthesizing touchpad pan gestures + TouchpadPanGestureState mCurrentSynthesizedTouchpadPan; + + // for touch event handling + nsRefPtrHashtable<nsPtrHashKey<GdkEventSequence>, mozilla::dom::Touch> + mTouches; + + // Upper bound on pending ConfigureNotify events to be dispatched to the + // window. See bug 1225044. + unsigned int mPendingConfigures = 0; + + // Window titlebar rendering mode, GTK_DECORATION_NONE if it's disabled + // for this window. + GtkWindowDecoration mGtkWindowDecoration = GTK_DECORATION_NONE; + + // Draggable titlebar region maintained by UpdateWindowDraggingRegion + LayoutDeviceIntRegion mDraggableRegion; + + // The cursor cache + static GdkCursor* gsGtkCursorCache[eCursorCount]; + + // If true, draw our own window titlebar. + // + // Needs to be atomic because GetTitlebarRect() gets called from non-main + // threads. + // + // FIXME(emilio): GetTitlebarRect() reads other things that TSAN doesn't + // catch because mDrawInTitlebar is false on automation ~always. We should + // probably make GetTitlebarRect() simpler / properly thread-safe. + mozilla::Atomic<bool, mozilla::Relaxed> mDrawInTitlebar{false}; + + // Has this widget been destroyed yet? + bool mIsDestroyed; + // mIsShown tracks requested visible status from browser perspective, i.e. + // if the window should be visible or now. + bool mIsShown : 1; + // mNeedsShow is set when browser requested to show this window but we failed + // to do so for some reason (wrong window size for instance). + // In such case we set mIsShown = true and mNeedsShow = true to indicate + // that the window is not actually visible but we report to browser that + // it is visible (mIsShown == true). + bool mNeedsShow : 1; + // This track real window visibility from OS perspective. + // It's set by OnMap/OnUnrealize which is based on Gtk events. + bool mIsMapped : 1; + // is this widget enabled? + bool mEnabled : 1; + // has the native window for this been created yet? + bool mCreated : 1; + // whether we handle touch event + bool mHandleTouchEvent : 1; + // true if this is a drag and drop feedback popup + bool mIsDragPopup : 1; + bool mWindowScaleFactorChanged : 1; + bool mCompositedScreen : 1; + bool mIsAccelerated : 1; + bool mWindowShouldStartDragging : 1; + bool mHasMappedToplevel : 1; + bool mRetryPointerGrab : 1; + bool mPanInProgress : 1; + // Use dedicated GdkWindow for mContainer + bool mDrawToContainer : 1; + // Draw titlebar with :backdrop css state (inactive/unfocused). + bool mTitlebarBackdropState : 1; + // It's PictureInPicture window. + bool mIsPIPWindow : 1; + // It's undecorated popup utility window, without resizers/titlebar, + // movable by mouse. Used on Wayland for popups without + // parent (for instance WebRTC sharing indicator, notifications). + bool mIsWaylandPanelWindow : 1; + // It's child window, i.e. window which is nested in parent window. + // This is obsoleted and should not be used. + // We use GdkWindow hierarchy for such windows. + bool mIsChildWindow : 1; + bool mAlwaysOnTop : 1; + bool mNoAutoHide : 1; + bool mIsTransparent : 1; + // We can expect at least one size-allocate event after early resizes. + bool mHasReceivedSizeAllocate : 1; + + /* Gkt creates popup in two incarnations - wl_subsurface and xdg_popup. + * Kind of popup is choosen before GdkWindow is mapped so we can change + * it only when GdkWindow is hidden. + * + * Relevant Gtk code is at gdkwindow-wayland.c + * in should_map_as_popup() and should_map_as_subsurface() + * + * wl_subsurface: + * - can't be positioned by move-to-rect + * - can stand outside popup widget hierarchy (has toplevel as parent) + * - don't have child popup widgets + * + * xdg_popup: + * - can be positioned by move-to-rect + * - aligned in popup widget hierarchy, first one is attached to toplevel + * - has child (popup) widgets + * + * Thus we need to map Firefox popup type to desired Gtk one: + * + * wl_subsurface: + * - pernament panels + * + * xdg_popup: + * - menus + * - autohide popups (hamburger menu) + * - extension popups + * - tooltips + * + * We set mPopupTrackInHierarchy = false for pernament panels which + * are always mapped to toplevel and painted as wl_surfaces. + */ + bool mPopupTrackInHierarchy : 1; + bool mPopupTrackInHierarchyConfigured : 1; + + /* On X11 Gtk tends to ignore window position requests when gtk_window + * is hidden. Save the position requests at mPopupPosition and apply + * when the widget is shown. + */ + bool mHiddenPopupPositioned : 1; + + // The transparency bitmap is used instead of ARGB visual for toplevel + // window to draw titlebar. + bool mTransparencyBitmapForTitlebar : 1; + + // True when we're on compositing window manager and this + // window is using visual with alpha channel. + bool mHasAlphaVisual : 1; + + // When popup is anchored, mPopupPosition is relative to its parent popup. + bool mPopupAnchored : 1; + + // When popup is context menu. + bool mPopupContextMenu : 1; + + // Indicates that this popup matches layout setup so we can use parent popup + // coordinates reliably. + bool mPopupMatchesLayout : 1; + + /* Indicates that popup setup was changed and + * we need to recalculate popup coordinates. + */ + bool mPopupChanged : 1; + + // Popup is hidden only as a part of hierarchy tree update. + bool mPopupTemporaryHidden : 1; + + // Popup is going to be closed and removed. + bool mPopupClosed : 1; + + // Popup is positioned by gdk_window_move_to_rect() + bool mPopupUseMoveToRect : 1; + + /* mWaitingForMoveToRectCallback is set when move-to-rect is called + * and we're waiting for move-to-rect callback. + * + * If another position/resize request comes between move-to-rect call and + * move-to-rect callback we set mMovedAfterMoveToRect/mResizedAfterMoveToRect. + */ + bool mWaitingForMoveToRectCallback : 1; + bool mMovedAfterMoveToRect : 1; + bool mResizedAfterMoveToRect : 1; + + // Params used for popup placemend by GdkWindowMoveToRect. + // When popup is only resized and not positioned, + // we need to reuse last GdkWindowMoveToRect params to avoid + // popup movement. + struct WaylandPopupMoveToRectParams { + LayoutDeviceIntRect mAnchorRect = {0, 0, 0, 0}; + GdkGravity mAnchorRectType = GDK_GRAVITY_NORTH_WEST; + GdkGravity mPopupAnchorType = GDK_GRAVITY_NORTH_WEST; + GdkAnchorHints mHints = GDK_ANCHOR_SLIDE; + GdkPoint mOffset = {0, 0}; + bool mAnchorSet = false; + }; + + WaylandPopupMoveToRectParams mPopupMoveToRectParams; + + // Whether we've configured default clear color already. + bool mConfiguredClearColor : 1; + // Whether we've received a non-blank paint in which case we can reset the + // clear color to transparent. + bool mGotNonBlankPaint : 1; + + // Whether we need to retry capturing the mouse because we' re not mapped yet. + bool mNeedsToRetryCapturingMouse : 1; + + // This bitmap tracks which pixels are transparent. We don't support + // full translucency at this time; each pixel is either fully opaque + // or fully transparent. + gchar* mTransparencyBitmap = nullptr; + int32_t mTransparencyBitmapWidth = 0; + int32_t mTransparencyBitmapHeight = 0; + + // all of our DND stuff + void InitDragEvent(mozilla::WidgetDragEvent& aEvent); + + float mLastMotionPressure = 0.0f; + + InputRegion mInputRegion; + + static bool DragInProgress(void); + + void DispatchMissedButtonReleases(GdkEventCrossing* aGdkEvent); + + // When window widget gets mapped/unmapped we need to configure + // underlying GdkWindow properly. Otherwise we'll end up with + // rendering to released window. + void ConfigureGdkWindow(); + void ReleaseGdkWindow(); + void ConfigureCompositor(); + + // nsBaseWidget + WindowRenderer* GetWindowRenderer() override; + void DidGetNonBlankPaint() override; + + void SetCompositorWidgetDelegate(CompositorWidgetDelegate* delegate) override; + + int32_t RoundsWidgetCoordinatesTo() override; + + void UpdateMozWindowActive(); + + void ForceTitlebarRedraw(); + bool DoDrawTilebarCorners(); + bool IsChromeWindowTitlebar(); + + void SetPopupWindowDecoration(bool aShowOnTaskbar); + + void ApplySizeConstraints(); + + // Wayland Popup section + GdkPoint WaylandGetParentPosition(); + bool WaylandPopupConfigure(); + bool WaylandPopupIsAnchored(); + bool WaylandPopupIsMenu(); + bool WaylandPopupIsContextMenu(); + bool WaylandPopupIsPermanent(); + // First popup means it's attached directly to toplevel window + bool WaylandPopupIsFirst(); + bool IsWidgetOverflowWindow(); + void RemovePopupFromHierarchyList(); + void ShowWaylandPopupWindow(); + void HideWaylandPopupWindow(bool aTemporaryHidden, bool aRemoveFromPopupList); + void ShowWaylandToplevelWindow(); + void HideWaylandToplevelWindow(); + void WaylandPopupHideTooltips(); + void WaylandPopupCloseOrphanedPopups(); + void AppendPopupToHierarchyList(nsWindow* aToplevelWindow); + void WaylandPopupHierarchyHideTemporary(); + void WaylandPopupHierarchyShowTemporaryHidden(); + void WaylandPopupHierarchyCalculatePositions(); + bool IsInPopupHierarchy(); + void AddWindowToPopupHierarchy(); + void UpdateWaylandPopupHierarchy(); + void WaylandPopupHierarchyHideByLayout( + nsTArray<nsIWidget*>* aLayoutWidgetHierarchy); + void WaylandPopupHierarchyValidateByLayout( + nsTArray<nsIWidget*>* aLayoutWidgetHierarchy); + void CloseAllPopupsBeforeRemotePopup(); + void WaylandPopupHideClosedPopups(); + void WaylandPopupPrepareForMove(); + void WaylandPopupMoveImpl(); + void WaylandPopupMovePlain(int aX, int aY); + bool WaylandPopupRemoveNegativePosition(int* aX = nullptr, int* aY = nullptr); + bool WaylandPopupCheckAndGetAnchor(GdkRectangle* aPopupAnchor, + GdkPoint* aOffset); + bool WaylandPopupAnchorAdjustForParentPopup(GdkRectangle* aPopupAnchor, + GdkPoint* aOffset); + nsWindow* WaylandPopupGetTopmostWindow(); + bool IsPopupInLayoutPopupChain(nsTArray<nsIWidget*>* aLayoutWidgetHierarchy, + bool aMustMatchParent); + void WaylandPopupMarkAsClosed(); + void WaylandPopupRemoveClosedPopups(); + void WaylandPopupSetDirectPosition(); + bool WaylandPopupFitsToplevelWindow(bool aMove); + const WaylandPopupMoveToRectParams WaylandPopupGetPositionFromLayout(); + void WaylandPopupPropagateChangesToLayout(bool aMove, bool aResize); + nsWindow* WaylandPopupFindLast(nsWindow* aPopup); + GtkWindow* GetCurrentTopmostWindow() const; + nsAutoCString GetFrameTag() const; + nsCString GetPopupTypeName(); + bool IsPopupDirectionRTL(); + +#ifdef MOZ_LOGGING + void LogPopupHierarchy(); + void LogPopupAnchorHints(int aHints); + void LogPopupGravity(GdkGravity aGravity); +#endif + + // mPopupPosition is the original popup position/size from layout, set by + // nsWindow::Move() or nsWindow::Resize(). + // Popup position is relative to main (toplevel) window. + GdkPoint mPopupPosition{}; + + // mRelativePopupPosition is popup position calculated against + // recent popup parent window. + GdkPoint mRelativePopupPosition{}; + + // Toplevel window (first element) of linked list of Wayland popups. It's null + // if we're the toplevel. + RefPtr<nsWindow> mWaylandToplevel; + + // Next/Previous popups in Wayland popup hierarchy. + RefPtr<nsWindow> mWaylandPopupNext; + RefPtr<nsWindow> mWaylandPopupPrev; + + // When popup is resized by Gtk by move-to-rect callback, + // we store final popup size here. Then we use mMoveToRectPopupSize size + // in following popup operations unless mLayoutPopupSizeCleared is set. + LayoutDeviceIntSize mMoveToRectPopupSize; + + /** + * |mIMContext| takes all IME related stuff. + * + * This is owned by the top-level nsWindow or the topmost child + * nsWindow embedded in a non-Gecko widget. + * + * The instance is created when the top level widget is created. And when + * the widget is destroyed, it's released. All child windows refer its + * ancestor widget's instance. So, one set of IM contexts is created for + * all windows in a hierarchy. If the children are released after the top + * level window is released, the children still have a valid pointer, + * however, IME doesn't work at that time. + */ + RefPtr<mozilla::widget::IMContextWrapper> mIMContext; + +#ifdef MOZ_X11 + mozilla::UniquePtr<mozilla::CurrentX11TimeGetter> mCurrentTimeGetter; +#endif + static GtkWindowDecoration sGtkWindowDecoration; + + static bool sTransparentMainWindow; + +#ifdef ACCESSIBILITY + RefPtr<mozilla::a11y::LocalAccessible> mRootAccessible; + + /** + * Request to create the accessible for this window if it is top level. + */ + void CreateRootAccessible(); + + /** + * Dispatch accessible event for the top level window accessible. + * + * @param aEventType [in] the accessible event type to dispatch + */ + void DispatchEventToRootAccessible(uint32_t aEventType); + + /** + * Dispatch accessible window activate event for the top level window + * accessible. + */ + void DispatchActivateEventAccessible(); + + /** + * Dispatch accessible window deactivate event for the top level window + * accessible. + */ + void DispatchDeactivateEventAccessible(); + + /** + * Dispatch accessible window maximize event for the top level window + * accessible. + */ + void DispatchMaximizeEventAccessible(); + + /** + * Dispatch accessible window minize event for the top level window + * accessible. + */ + void DispatchMinimizeEventAccessible(); + + /** + * Dispatch accessible window restore event for the top level window + * accessible. + */ + void DispatchRestoreEventAccessible(); +#endif + + void SetUserTimeAndStartupTokenForActivatedWindow(); + +#ifdef MOZ_X11 + typedef enum {GTK_WIDGET_COMPOSIDED_DEFAULT = 0, + GTK_WIDGET_COMPOSIDED_DISABLED = 1, + GTK_WIDGET_COMPOSIDED_ENABLED = 2} WindowComposeRequest; + void SetCompositorHint(WindowComposeRequest aState); + bool ConfigureX11GLVisual(); +#endif +#ifdef MOZ_WAYLAND + RefPtr<mozilla::WaylandVsyncSource> mWaylandVsyncSource; + RefPtr<mozilla::VsyncDispatcher> mWaylandVsyncDispatcher; + LayoutDeviceIntPoint mNativePointerLockCenter; + zwp_locked_pointer_v1* mLockedPointer = nullptr; + zwp_relative_pointer_v1* mRelativePointer = nullptr; +#endif + // An activation token from our environment (see handling of the + // XDG_ACTIVATION_TOKEN/DESKTOP_STARTUP_ID) env vars. + nsCString mWindowActivationTokenFromEnv; + mozilla::widget::WindowSurfaceProvider mSurfaceProvider; + GdkDragContext* mSourceDragContext = nullptr; +#if MOZ_LOGGING + LayoutDeviceIntRect mLastLoggedBoundSize; + int mLastLoggedScale = -1; +#endif +}; + +#endif /* __nsWindow_h__ */ |