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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 */
#ifndef Window_h__
#define Window_h__
* nsWindow - Native window management and event handling.
#include "mozilla/RefPtr.h"
#include "nsBaseWidget.h"
#include "CompositorWidget.h"
#include "nsWindowBase.h"
#include "nsdefs.h"
#include "nsUserIdleService.h"
#include "nsToolkit.h"
#include "nsString.h"
#include "nsTArray.h"
#include "gfxWindowsPlatform.h"
#include "gfxWindowsSurface.h"
#include "nsWindowDbg.h"
#include "cairo.h"
#include "nsRegion.h"
#include "mozilla/EventForwards.h"
#include "mozilla/Maybe.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/webrender/WebRenderTypes.h"
#include "mozilla/dom/MouseEventBinding.h"
#include "mozilla/UniquePtr.h"
#include "nsMargin.h"
#include "nsRegionFwd.h"
#include "nsWinGesture.h"
#include "WinPointerEvents.h"
#include "WinUtils.h"
#include "WindowHook.h"
#include "TaskbarWindowPreview.h"
# include "oleacc.h"
# include "mozilla/a11y/Accessible.h"
#include "nsUXThemeData.h"
#include "nsIUserIdleServiceInternal.h"
#include "IMMHandler.h"
* Forward class definitions
class nsNativeDragTarget;
class nsIRollupListener;
class imgIContainer;
namespace mozilla {
namespace widget {
class NativeKey;
class InProcessWinCompositorWidget;
struct MSGResult;
class DirectManipulationOwner;
} // namespace widget
} // namespace mozilla
* Forward Windows-internal definitions of otherwise incomplete ones provided by
* the SDK.
const CLSID CLSID_ImmersiveShell = {
{0xB4, 0xBB, 0x15, 0x63, 0x62, 0xA2, 0xF2, 0x39}};
// Virtual Desktop.
EXTERN_C const IID IID_IVirtualDesktopManager;
IVirtualDesktopManager : public IUnknown {
__RPC__in HWND topLevelWindow, __RPC__out GUID * desktopId) = 0;
__RPC__in HWND topLevelWindow, __RPC__in REFGUID desktopId) = 0;
* Native WIN32 window wrapper.
class nsWindow final : public nsWindowBase {
typedef mozilla::TimeStamp TimeStamp;
typedef mozilla::TimeDuration TimeDuration;
typedef mozilla::widget::WindowHook WindowHook;
typedef mozilla::widget::TaskbarWindowPreview TaskbarWindowPreview;
typedef mozilla::widget::NativeKey NativeKey;
typedef mozilla::widget::MSGResult MSGResult;
typedef mozilla::widget::IMEContext IMEContext;
typedef mozilla::widget::PlatformCompositorWidgetDelegate
explicit nsWindow(bool aIsChildWindow = false);
friend class nsWindowGfx;
void SendAnAPZEvent(mozilla::InputData& aEvent);
// nsWindowBase
virtual void InitEvent(mozilla::WidgetGUIEvent& aEvent,
LayoutDeviceIntPoint* aPoint = nullptr) override;
virtual WidgetEventTime CurrentMessageWidgetEventTime() const override;
virtual bool DispatchWindowEvent(mozilla::WidgetGUIEvent* aEvent) override;
virtual bool DispatchKeyboardEvent(
mozilla::WidgetKeyboardEvent* aEvent) override;
virtual bool DispatchWheelEvent(mozilla::WidgetWheelEvent* aEvent) override;
virtual bool DispatchContentCommandEvent(
mozilla::WidgetContentCommandEvent* aEvent) override;
virtual nsWindowBase* GetParentWindowBase(bool aIncludeOwner) override;
virtual bool IsTopLevelWidget() override { return mIsTopWidgetWindow; }
using nsWindowBase::DispatchPluginEvent;
// nsIWidget interface
using nsWindowBase::Create; // for Create signature not overridden here
[[nodiscard]] virtual nsresult Create(
nsIWidget* aParent, nsNativeWidget aNativeParent,
const LayoutDeviceIntRect& aRect,
nsWidgetInitData* aInitData = nullptr) override;
virtual void Destroy() override;
virtual void SetParent(nsIWidget* aNewParent) override;
virtual nsIWidget* GetParent(void) override;
virtual float GetDPI() override;
double GetDefaultScaleInternal() final;
int32_t LogToPhys(double aValue) final;
mozilla::DesktopToLayoutDeviceScale GetDesktopToDeviceScale() final {
if (mozilla::widget::WinUtils::IsPerMonitorDPIAware()) {
return mozilla::DesktopToLayoutDeviceScale(1.0);
} else {
return mozilla::DesktopToLayoutDeviceScale(GetDefaultScaleInternal());
virtual void Show(bool aState) override;
virtual bool IsVisible() const override;
virtual void ConstrainPosition(bool aAllowSlop, int32_t* aX,
int32_t* aY) override;
virtual void SetSizeConstraints(const SizeConstraints& aConstraints) override;
virtual void LockAspectRatio(bool aShouldLock) override;
virtual const SizeConstraints GetSizeConstraints() override;
virtual void SetWindowMouseTransparent(bool aIsTransparent) 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 mozilla::Maybe<bool> IsResizingNativeWidget() override;
[[nodiscard]] virtual nsresult BeginResizeDrag(
mozilla::WidgetGUIEvent* aEvent, int32_t aHorizontal,
int32_t aVertical) override;
virtual void PlaceBehind(nsTopLevelWidgetZPlacement aPlacement,
nsIWidget* aWidget, bool aActivate) override;
virtual void SetSizeMode(nsSizeMode aMode) override;
virtual void GetWorkspaceID(nsAString& workspaceID) override;
virtual void MoveToWorkspace(const nsAString& workspaceID) override;
virtual void SuppressAnimation(bool aSuppress) override;
virtual void Enable(bool aState) override;
virtual bool IsEnabled() const override;
virtual void SetFocus(Raise, mozilla::dom::CallerType aCallerType) override;
virtual LayoutDeviceIntRect GetBounds() override;
virtual LayoutDeviceIntRect GetScreenBounds() override;
[[nodiscard]] virtual nsresult GetRestoredBounds(
LayoutDeviceIntRect& aRect) override;
virtual LayoutDeviceIntRect GetClientBounds() override;
virtual LayoutDeviceIntPoint GetClientOffset() override;
void SetBackgroundColor(const nscolor& aColor) override;
virtual void SetCursor(nsCursor aDefaultCursor, imgIContainer* aCursorImage,
uint32_t aHotspotX, uint32_t aHotspotY) override;
virtual nsresult ConfigureChildren(
const nsTArray<Configuration>& aConfigurations) override;
virtual bool PrepareForFullscreenTransition(nsISupports** aData) override;
virtual void PerformFullscreenTransition(FullscreenTransitionStage aStage,
uint16_t aDuration,
nsISupports* aData,
nsIRunnable* aCallback) override;
virtual void CleanupFullscreenTransition() override;
virtual nsresult MakeFullScreen(bool aFullScreen,
nsIScreen* aScreen = nullptr) override;
virtual void HideWindowChrome(bool aShouldHide) override;
virtual void Invalidate(bool aEraseBackground = false,
bool aUpdateNCArea = false,
bool aIncludeChildren = false);
virtual void Invalidate(const LayoutDeviceIntRect& aRect);
virtual void* GetNativeData(uint32_t aDataType) override;
void SetNativeData(uint32_t aDataType, uintptr_t aVal) override;
virtual void FreeNativeData(void* data, uint32_t aDataType) override;
virtual nsresult SetTitle(const nsAString& aTitle) override;
virtual void SetIcon(const nsAString& aIconSpec) override;
virtual LayoutDeviceIntPoint WidgetToScreenOffset() override;
virtual LayoutDeviceIntSize ClientToWindowSize(
const LayoutDeviceIntSize& aClientSize) override;
virtual nsresult DispatchEvent(mozilla::WidgetGUIEvent* aEvent,
nsEventStatus& aStatus) override;
virtual void EnableDragDrop(bool aEnable) override;
virtual void CaptureMouse(bool aCapture) override;
virtual void CaptureRollupEvents(nsIRollupListener* aListener,
bool aDoCapture) override;
[[nodiscard]] virtual nsresult GetAttention(int32_t aCycleCount) override;
virtual bool HasPendingInputEvent() override;
virtual LayerManager* GetLayerManager(
PLayerTransactionChild* aShadowManager = nullptr,
LayersBackend aBackendHint = mozilla::layers::LayersBackend::LAYERS_NONE,
LayerManagerPersistence aPersistence = LAYER_MANAGER_CURRENT) override;
void SetCompositorWidgetDelegate(CompositorWidgetDelegate* delegate) override;
[[nodiscard]] virtual nsresult OnDefaultButtonLoaded(
const LayoutDeviceIntRect& aButtonRect) 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,
uint32_t aNativeMessage,
uint32_t aModifierFlags,
nsIObserver* aObserver) override;
virtual nsresult SynthesizeNativeMouseMove(LayoutDeviceIntPoint aPoint,
nsIObserver* aObserver) override {
return SynthesizeNativeMouseEvent(aPoint, MOUSEEVENTF_MOVE, 0, 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 void SetInputContext(const InputContext& aContext,
const InputContextAction& aAction) override;
virtual InputContext GetInputContext() override;
virtual TextEventDispatcherListener* GetNativeTextEventDispatcherListener()
#ifdef MOZ_XUL
virtual void SetTransparencyMode(nsTransparencyMode aMode) override;
virtual nsTransparencyMode GetTransparencyMode() override;
virtual void UpdateOpaqueRegion(
const LayoutDeviceIntRegion& aOpaqueRegion) override;
#endif // MOZ_XUL
virtual nsresult SetNonClientMargins(
LayoutDeviceIntMargin& aMargins) override;
void SetDrawsInTitlebar(bool aState) override;
virtual void UpdateWindowDraggingRegion(
const LayoutDeviceIntRegion& aRegion) override;
virtual void UpdateThemeGeometries(
const nsTArray<ThemeGeometry>& aThemeGeometries) override;
virtual uint32_t GetMaxTouchPoints() const override;
virtual void SetWindowClass(const nsAString& xulWinType) override;
* Event helpers
virtual bool DispatchMouseEvent(
mozilla::EventMessage aEventMessage, WPARAM wParam, LPARAM lParam,
bool aIsContextMenuKey = false,
int16_t aButton = mozilla::MouseButton::ePrimary,
uint16_t aInputSource =
WinPointerInfo* aPointerInfo = nullptr);
virtual bool DispatchWindowEvent(mozilla::WidgetGUIEvent* aEvent,
nsEventStatus& aStatus);
void DispatchPendingEvents();
bool DispatchPluginEvent(UINT aMessage, WPARAM aWParam, LPARAM aLParam,
bool aDispatchPendingEvents);
void DispatchCustomEvent(const nsString& eventName);
* Return an accessible associated with the window.
mozilla::a11y::Accessible* GetAccessible();
* Window utilities
nsWindow* GetTopLevelWindow(bool aStopOnDialogOrPopup);
WNDPROC GetPrevWindowProc() { return mPrevWndProc; }
WindowHook& GetWindowHook() { return mWindowHook; }
nsWindow* GetParentWindow(bool aIncludeOwner);
// Get an array of all nsWindow*s on the main thread.
static nsTArray<nsWindow*> EnumAllWindows();
* Misc.
virtual bool AutoErase(HDC dc);
bool WidgetTypeSupportsAcceleration() override;
void ForcePresent();
bool TouchEventShouldStartDrag(mozilla::EventMessage aEventMessage,
LayoutDeviceIntPoint aEventPoint);
void SetSmallIcon(HICON aIcon);
void SetBigIcon(HICON aIcon);
static void SetIsRestoringSession(const bool aIsRestoringSession) {
sIsRestoringSession = aIsRestoringSession;
* AssociateDefaultIMC() associates or disassociates the default IMC for
* the window.
* @param aAssociate TRUE, associates the default IMC with the window.
* Otherwise, disassociates the default IMC from the
* window.
* @return TRUE if this method associated the default IMC with
* disassociated window or disassociated the default IMC
* from associated window.
* Otherwise, i.e., if this method did nothing actually,
bool AssociateDefaultIMC(bool aAssociate);
bool HasTaskbarIconBeenCreated() { return mHasTaskbarIconBeenCreated; }
// Called when either the nsWindow or an nsITaskbarTabPreview receives the
// noticiation that this window has its icon placed on the taskbar.
void SetHasTaskbarIconBeenCreated(bool created = true) {
mHasTaskbarIconBeenCreated = created;
// Getter/setter for the nsITaskbarWindowPreview for this nsWindow
already_AddRefed<nsITaskbarWindowPreview> GetTaskbarPreview() {
nsCOMPtr<nsITaskbarWindowPreview> preview(
return preview.forget();
void SetTaskbarPreview(nsITaskbarWindowPreview* preview) {
mTaskbarPreview = do_GetWeakReference(preview);
virtual void ReparentNativeWidget(nsIWidget* aNewParent) override;
// Open file picker tracking
void PickerOpen();
void PickerClosed();
bool const DestroyCalled() { return mDestroyCalled; }
bool IsPopup();
virtual bool ShouldUseOffMainThreadCompositing() override;
const IMEContext& DefaultIMC() const { return mDefaultIMC; }
virtual void SetCandidateWindowForPlugin(
const mozilla::widget::CandidateWindowPosition& aPosition) override;
virtual void DefaultProcOfPluginEvent(
const mozilla::WidgetPluginEvent& aEvent) override;
virtual void EnableIMEForPlugin(bool aEnable) override;
virtual nsresult OnWindowedPluginKeyEvent(
const mozilla::NativeEventData& aKeyEventData,
nsIKeyEventInPluginCallback* aCallback) override;
void DispatchPluginSettingEvents();
void GetCompositorWidgetInitData(
mozilla::widget::CompositorWidgetInitData* aInitData) override;
bool IsTouchWindow() const { return mTouchWindow; }
bool SynchronouslyRepaintOnResize() override;
virtual ~nsWindow();
virtual void WindowUsesOMTC() override;
virtual void RegisterTouchWindow() override;
// A magic number to identify the FAKETRACKPOINTSCROLLABLE window created
// when the trackpoint hack is enabled.
enum { eFakeTrackPointScrollableID = 0x46545053 };
// Used for displayport suppression during window resize
* Callbacks
static LRESULT CALLBACK WindowProc(HWND hWnd, UINT msg, WPARAM wParam,
LPARAM lParam);
static LRESULT CALLBACK WindowProcInternal(HWND hWnd, UINT msg, WPARAM wParam,
LPARAM lParam);
static BOOL CALLBACK BroadcastMsgToChildren(HWND aWnd, LPARAM aMsg);
static BOOL CALLBACK BroadcastMsg(HWND aTopWindow, LPARAM aMsg);
static BOOL CALLBACK DispatchStarvedPaints(HWND aTopWindow, LPARAM aMsg);
static BOOL CALLBACK RegisterTouchForDescendants(HWND aTopWindow,
static BOOL CALLBACK UnregisterTouchForDescendants(HWND aTopWindow,
static LRESULT CALLBACK MozSpecialMsgFilter(int code, WPARAM wParam,
LPARAM lParam);
static LRESULT CALLBACK MozSpecialWndProc(int code, WPARAM wParam,
LPARAM lParam);
static LRESULT CALLBACK MozSpecialMouseProc(int code, WPARAM wParam,
LPARAM lParam);
static VOID CALLBACK HookTimerForPopups(HWND hwnd, UINT uMsg, UINT idEvent,
DWORD dwTime);
static BOOL CALLBACK ClearResourcesCallback(HWND aChild, LPARAM aParam);
static BOOL CALLBACK EnumAllChildWindProc(HWND aWnd, LPARAM aParam);
static BOOL CALLBACK EnumAllThreadWindowProc(HWND aWnd, LPARAM aParam);
* Window utilities
LPARAM lParamToScreen(LPARAM lParam);
LPARAM lParamToClient(LPARAM lParam);
virtual void SubclassWindow(BOOL bState);
bool CanTakeFocus();
bool UpdateNonClientMargins(int32_t aSizeMode = -1,
bool aReflowWindow = true);
void UpdateGetWindowInfoCaptionStatus(bool aActiveCaption);
void ResetLayout();
void InvalidateNonClientRegion();
HRGN ExcludeNonClientFromPaintRegion(HRGN aRegion);
static const wchar_t* GetMainWindowClass();
bool HasGlass() const {
return mTransparencyMode == eTransparencyGlass ||
mTransparencyMode == eTransparencyBorderlessGlass;
HWND GetOwnerWnd() const { return ::GetWindow(mWnd, GW_OWNER); }
bool IsOwnerForegroundWindow() const {
HWND owner = GetOwnerWnd();
return owner && owner == ::GetForegroundWindow();
bool IsPopup() const { return mWindowType == eWindowType_popup; }
* Event processing helpers
HWND GetTopLevelForFocus(HWND aCurWnd);
void DispatchFocusToTopLevelWindow(bool aIsActivate);
bool DispatchStandardEvent(mozilla::EventMessage aMsg);
void RelayMouseEvent(UINT aMsg, WPARAM wParam, LPARAM lParam);
virtual bool ProcessMessage(UINT msg, WPARAM& wParam, LPARAM& lParam,
LRESULT* aRetValue);
bool ExternalHandlerProcessMessage(UINT aMessage, WPARAM& aWParam,
LPARAM& aLParam, MSGResult& aResult);
bool ProcessMessageForPlugin(MSG aMsg, MSGResult& aResult);
LRESULT ProcessCharMessage(const MSG& aMsg, bool* aEventDispatched);
LRESULT ProcessKeyUpMessage(const MSG& aMsg, bool* aEventDispatched);
LRESULT ProcessKeyDownMessage(const MSG& aMsg, bool* aEventDispatched);
static bool EventIsInsideWindow(nsWindow* aWindow);
// Convert nsEventStatus value to a windows boolean
static bool ConvertStatus(nsEventStatus aStatus);
static void PostSleepWakeNotification(const bool aIsSleepMode);
int32_t ClientMarginHitTestPoint(int32_t mx, int32_t my);
TimeStamp GetMessageTimeStamp(LONG aEventTime) const;
static void UpdateFirstEventTime(DWORD aEventTime);
void FinishLiveResizing(ResizeState aNewState);
nsIntPoint GetTouchCoordinates(WPARAM wParam, LPARAM lParam);
Maybe<mozilla::PanGestureInput> ConvertTouchToPanGesture(
const mozilla::MultiTouchInput& aTouchInput, PTOUCHINPUT aOriginalEvent);
void DispatchTouchOrPanGestureInput(mozilla::MultiTouchInput& aTouchInput,
* Event handlers
virtual void OnDestroy() override;
bool OnResize(const LayoutDeviceIntSize& aSize);
void OnSizeModeChange(nsSizeMode aSizeMode);
bool OnGesture(WPARAM wParam, LPARAM lParam);
bool OnTouch(WPARAM wParam, LPARAM lParam);
bool OnHotKey(WPARAM wParam, LPARAM lParam);
bool OnPaint(HDC aDC, uint32_t aNestingLevel);
void OnWindowPosChanged(WINDOWPOS* wp);
void OnWindowPosChanging(LPWINDOWPOS& info);
void OnSysColorChanged();
void OnDPIChanged(int32_t x, int32_t y, int32_t width, int32_t height);
bool OnPointerEvents(UINT msg, WPARAM wParam, LPARAM lParam);
* Function that registers when the user has been active (used for detecting
* when the user is idle).
void UserActivity();
int32_t GetHeight(int32_t aProposedHeight);
const wchar_t* GetWindowClass() const;
const wchar_t* GetWindowPopupClass() const;
virtual DWORD WindowStyle();
DWORD WindowExStyle();
// This method registers the given window class, and returns the class name.
const wchar_t* RegisterWindowClass(const wchar_t* aClassName,
UINT aExtraStyle, LPWSTR aIconID) const;
* XP and Vista theming support for windows with rounded edges
void ClearThemeRegion();
void SetThemeRegion();
* Popup hooks
static void ScheduleHookTimer(HWND aWnd, UINT aMsgId);
static void RegisterSpecialDropdownHooks();
static void UnregisterSpecialDropdownHooks();
static bool GetPopupsToRollup(nsIRollupListener* aRollupListener,
uint32_t* aPopupsToRollup);
static bool NeedsToHandleNCActivateDelayed(HWND aWnd);
static bool DealWithPopups(HWND inWnd, UINT inMsg, WPARAM inWParam,
LPARAM inLParam, LRESULT* outResult);
* Window transparency helpers
#ifdef MOZ_XUL
void SetWindowTranslucencyInner(nsTransparencyMode aMode);
nsTransparencyMode GetWindowTranslucencyInner() const {
return mTransparencyMode;
void UpdateGlass();
bool WithinDraggableRegion(int32_t clientX, int32_t clientY);
#endif // MOZ_XUL
static bool IsAsyncResponseEvent(UINT aMsg, LRESULT& aResult);
void IPCWindowProcHandler(UINT& msg, WPARAM& wParam, LPARAM& lParam);
* Misc.
void StopFlashing();
static HWND WindowAtMouse();
static bool IsTopLevelMouseExit(HWND aWnd);
virtual nsresult SetWindowClipRegion(
const nsTArray<LayoutDeviceIntRect>& aRects,
bool aIntersectWithExisting) override;
LayoutDeviceIntRegion GetRegionToPaint(bool aForceFullRepaint, PAINTSTRUCT ps,
void ClearCachedResources();
nsIWidgetListener* GetPaintListener();
virtual void AddWindowOverlayWebRenderCommands(
mozilla::layers::WebRenderBridgeChild* aWrBridge,
mozilla::wr::DisplayListBuilder& aBuilder,
mozilla::wr::IpcResourceUpdateQueue& aResourceUpdates) override;
already_AddRefed<SourceSurface> CreateScrollSnapshot() override;
struct ScrollSnapshot {
RefPtr<gfxWindowsSurface> surface;
bool surfaceHasSnapshot = false;
RECT clip;
ScrollSnapshot* EnsureSnapshotSurface(ScrollSnapshot& aSnapshotData,
const mozilla::gfx::IntSize& aSize);
ScrollSnapshot mFullSnapshot;
ScrollSnapshot mPartialSnapshot;
ScrollSnapshot* mCurrentSnapshot = nullptr;
already_AddRefed<SourceSurface> GetFallbackScrollSnapshot(
const RECT& aRequiredClip);
void CreateCompositor() override;
void RequestFxrOutput();
void RecreateDirectManipulationIfNeeded();
void ResizeDirectManipulationViewport();
void DestroyDirectManipulation();
nsCOMPtr<nsIWidget> mParent;
nsIntSize mLastSize;
nsIntPoint mLastPoint;
HWND mWnd;
HWND mTransitionWnd;
WNDPROC mPrevWndProc;
HBRUSH mBrush;
IMEContext mDefaultIMC;
HDEVNOTIFY mDeviceNotifyHandle;
bool mIsTopWidgetWindow;
bool mInDtor;
bool mIsVisible;
bool mUnicodeWidget;
bool mPainting;
bool mTouchWindow;
bool mDisplayPanFeedback;
bool mHideChrome;
bool mIsRTL;
bool mFullscreenMode;
bool mMousePresent;
bool mMouseInDraggableArea;
bool mDestroyCalled;
bool mOpeningAnimationSuppressed;
bool mAlwaysOnTop;
bool mIsEarlyBlankWindow;
bool mResizable;
DWORD_PTR mOldStyle;
DWORD_PTR mOldExStyle;
nsNativeDragTarget* mNativeDragTarget;
HKL mLastKeyboardLayout;
nsSizeMode mOldSizeMode;
nsSizeMode mLastSizeMode;
WindowHook mWindowHook;
uint32_t mPickerDisplayCount;
HICON mIconSmall;
HICON mIconBig;
HWND mLastKillFocusWindow;
static bool sDropShadowEnabled;
static uint32_t sInstanceCount;
static TriStateBool sCanQuit;
static nsWindow* sCurrentWindow;
static BOOL sIsOleInitialized;
static HCURSOR sHCursor;
static imgIContainer* sCursorImgContainer;
static bool sSwitchKeyboardLayout;
static bool sJustGotDeactivate;
static bool sJustGotActivate;
static bool sIsInMouseCapture;
static bool sHaveInitializedPrefs;
static bool sIsRestoringSession;
PlatformCompositorWidgetDelegate* mCompositorWidgetDelegate;
// Always use the helper method to read this property. See bug 603793.
static TriStateBool sHasBogusPopupsDropShadowOnMultiMonitor;
static bool HasBogusPopupsDropShadowOnMultiMonitor();
// Non-client margin settings
// Pre-calculated outward offset applied to default frames
LayoutDeviceIntMargin mNonClientOffset;
// Margins set by the owner
LayoutDeviceIntMargin mNonClientMargins;
// Margins we'd like to set once chrome is reshown:
LayoutDeviceIntMargin mFutureMarginsOnceChromeShows;
// Indicates we need to apply margins once toggling chrome into showing:
bool mFutureMarginsToUse;
// Indicates custom frames are enabled
bool mCustomNonClient;
// Cached copy of L&F's resize border
int32_t mHorResizeMargin;
int32_t mVertResizeMargin;
// Height of the caption plus border
int32_t mCaptionHeight;
double mDefaultScale;
float mAspectRatio;
nsCOMPtr<nsIUserIdleServiceInternal> mIdleService;
// Draggable titlebar region maintained by UpdateWindowDraggingRegion
LayoutDeviceIntRegion mDraggableRegion;
// Hook Data Memebers for Dropdowns. sProcessHook Tells the
// hook methods whether they should be processing the hook
// messages.
static HHOOK sMsgFilterHook;
static HHOOK sCallProcHook;
static HHOOK sCallMouseHook;
static bool sProcessHook;
static UINT sRollupMsgId;
static HWND sRollupMsgWnd;
static UINT sHookTimerId;
// Mouse Clicks - static variable definitions for figuring
// out 1 - 3 Clicks.
static POINT sLastMousePoint;
static POINT sLastMouseMovePoint;
static LONG sLastMouseDownTime;
static LONG sLastClickCount;
static BYTE sLastMouseButton;
// Graphics
HDC mPaintDC; // only set during painting
LayoutDeviceIntRect mLastPaintBounds;
ResizeState mResizeState;
// Transparency
#ifdef MOZ_XUL
nsTransparencyMode mTransparencyMode;
nsIntRegion mPossiblyTransparentRegion;
MARGINS mGlassMargins;
#endif // MOZ_XUL
// Win7 Gesture processing and management
nsWinGesture mGesture;
// Weak ref to the nsITaskbarWindowPreview associated with this window
nsWeakPtr mTaskbarPreview;
// True if the taskbar (possibly through the tab preview) tells us that the
// icon has been created on the taskbar.
bool mHasTaskbarIconBeenCreated;
// Indicates that mouse events should be ignored and pass through to the
// window below. This is currently only used for popups.
bool mMouseTransparent;
// Whether we're in the process of sending a WM_SETTEXT ourselves
bool mSendingSetText;
// Whether we we're created as a child window (aka ChildWindow) or not.
bool mIsChildWindow : 1;
int32_t mCachedHitTestResult;
// The point in time at which the last paint completed. We use this to avoid
// painting too rapidly in response to frequent input events.
TimeStamp mLastPaintEndTime;
// The location of the window buttons in the window.
mozilla::Maybe<LayoutDeviceIntRect> mWindowButtonsRect;
// Caching for hit test results
POINT mCachedHitTestPoint;
TimeStamp mCachedHitTestTime;
RefPtr<mozilla::widget::InProcessWinCompositorWidget> mBasicLayersSurface;
static bool sNeedsToInitMouseWheelSettings;
static void InitMouseWheelScrollData();
double mSizeConstraintsScale; // scale in effect when setting constraints
int32_t mMaxTextureSize;
// Pointer events processing and management
WinPointerEvents mPointerEvents;
ScreenPoint mLastPanGestureFocus;
// When true, used to indicate an async call to RequestFxrOutput to the GPU
// process after the Compositor is created
bool mRequestFxrOutputPending;
mozilla::UniquePtr<mozilla::widget::DirectManipulationOwner> mDmOwner;
#endif // Window_h__