mirror of
https://github.com/mozilla/gecko-dev.git
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559 lines
24 KiB
C++
559 lines
24 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef Window_h__
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#define Window_h__
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/*
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* nsWindow - Native window management and event handling.
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*/
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#include "nsAutoPtr.h"
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#include "nsBaseWidget.h"
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#include "nsWindowBase.h"
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#include "nsdefs.h"
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#include "nsIdleService.h"
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#include "nsToolkit.h"
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#include "nsString.h"
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#include "nsTArray.h"
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#include "nsEvent.h"
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#include "gfxWindowsSurface.h"
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#include "nsWindowDbg.h"
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#include "cairo.h"
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#include "nsITimer.h"
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#include "mozilla/TimeStamp.h"
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#ifdef CAIRO_HAS_D2D_SURFACE
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#include "gfxD2DSurface.h"
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#endif
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#include "nsWinGesture.h"
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#include "WindowHook.h"
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#include "TaskbarWindowPreview.h"
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#ifdef ACCESSIBILITY
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#include "oleacc.h"
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#include "mozilla/a11y/Accessible.h"
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#endif
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#include "nsUXThemeData.h"
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#include "nsIDOMMouseEvent.h"
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#include "nsIIdleServiceInternal.h"
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/**
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* Forward class definitions
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*/
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class nsNativeDragTarget;
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class nsIRollupListener;
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class nsIFile;
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class imgIContainer;
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namespace mozilla {
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namespace widget {
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class NativeKey;
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class ModifierKeyState;
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struct MSGResult;
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} // namespace widget
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} // namespacw mozilla;
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/**
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* Native WIN32 window wrapper.
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*/
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class nsWindow : public nsWindowBase
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{
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typedef mozilla::TimeStamp TimeStamp;
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typedef mozilla::TimeDuration TimeDuration;
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typedef mozilla::widget::WindowHook WindowHook;
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typedef mozilla::widget::TaskbarWindowPreview TaskbarWindowPreview;
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typedef mozilla::widget::NativeKey NativeKey;
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typedef mozilla::widget::MSGResult MSGResult;
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public:
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nsWindow();
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virtual ~nsWindow();
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NS_DECL_ISUPPORTS_INHERITED
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friend class nsWindowGfx;
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// nsWindowBase
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virtual void InitEvent(nsGUIEvent& aEvent, nsIntPoint* aPoint = nullptr) MOZ_OVERRIDE;
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virtual bool DispatchWindowEvent(nsGUIEvent* aEvent) MOZ_OVERRIDE;
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// nsIWidget interface
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NS_IMETHOD Create(nsIWidget *aParent,
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nsNativeWidget aNativeParent,
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const nsIntRect &aRect,
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nsDeviceContext *aContext,
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nsWidgetInitData *aInitData = nullptr);
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NS_IMETHOD Destroy();
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NS_IMETHOD SetParent(nsIWidget *aNewParent);
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virtual nsIWidget* GetParent(void);
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virtual float GetDPI();
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virtual double GetDefaultScaleInternal();
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NS_IMETHOD Show(bool bState);
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virtual bool IsVisible() const;
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NS_IMETHOD ConstrainPosition(bool aAllowSlop, int32_t *aX, int32_t *aY);
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virtual void SetSizeConstraints(const SizeConstraints& aConstraints);
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NS_IMETHOD Move(double aX, double aY);
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NS_IMETHOD Resize(double aWidth, double aHeight, bool aRepaint);
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NS_IMETHOD Resize(double aX, double aY, double aWidth, double aHeight, bool aRepaint);
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NS_IMETHOD BeginResizeDrag(nsGUIEvent* aEvent, int32_t aHorizontal, int32_t aVertical);
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NS_IMETHOD PlaceBehind(nsTopLevelWidgetZPlacement aPlacement, nsIWidget *aWidget, bool aActivate);
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NS_IMETHOD SetSizeMode(int32_t aMode);
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NS_IMETHOD Enable(bool aState);
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virtual bool IsEnabled() const;
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NS_IMETHOD SetFocus(bool aRaise);
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NS_IMETHOD GetBounds(nsIntRect &aRect);
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NS_IMETHOD GetScreenBounds(nsIntRect &aRect);
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NS_IMETHOD GetClientBounds(nsIntRect &aRect);
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virtual nsIntPoint GetClientOffset();
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NS_IMETHOD SetBackgroundColor(const nscolor &aColor);
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NS_IMETHOD SetCursor(imgIContainer* aCursor,
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uint32_t aHotspotX, uint32_t aHotspotY);
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NS_IMETHOD SetCursor(nsCursor aCursor);
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virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations);
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NS_IMETHOD MakeFullScreen(bool aFullScreen);
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NS_IMETHOD HideWindowChrome(bool aShouldHide);
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NS_IMETHOD Invalidate(bool aEraseBackground = false,
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bool aUpdateNCArea = false,
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bool aIncludeChildren = false);
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NS_IMETHOD Invalidate(const nsIntRect & aRect);
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virtual void* GetNativeData(uint32_t aDataType);
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virtual void FreeNativeData(void * data, uint32_t aDataType);
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NS_IMETHOD SetTitle(const nsAString& aTitle);
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NS_IMETHOD SetIcon(const nsAString& aIconSpec);
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virtual nsIntPoint WidgetToScreenOffset();
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virtual nsIntSize ClientToWindowSize(const nsIntSize& aClientSize);
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NS_IMETHOD DispatchEvent(nsGUIEvent* event, nsEventStatus & aStatus);
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NS_IMETHOD EnableDragDrop(bool aEnable);
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NS_IMETHOD CaptureMouse(bool aCapture);
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NS_IMETHOD CaptureRollupEvents(nsIRollupListener * aListener,
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bool aDoCapture);
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NS_IMETHOD GetAttention(int32_t aCycleCount);
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virtual bool HasPendingInputEvent();
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virtual LayerManager* GetLayerManager(PLayerTransactionChild* aShadowManager = nullptr,
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LayersBackend aBackendHint = mozilla::layers::LAYERS_NONE,
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LayerManagerPersistence aPersistence = LAYER_MANAGER_CURRENT,
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bool* aAllowRetaining = nullptr);
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gfxASurface *GetThebesSurface();
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NS_IMETHOD OnDefaultButtonLoaded(const nsIntRect &aButtonRect);
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NS_IMETHOD OverrideSystemMouseScrollSpeed(double aOriginalDeltaX,
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double aOriginalDeltaY,
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double& aOverriddenDeltaX,
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double& aOverriddenDeltaY);
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virtual nsresult SynthesizeNativeKeyEvent(int32_t aNativeKeyboardLayout,
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int32_t aNativeKeyCode,
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uint32_t aModifierFlags,
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const nsAString& aCharacters,
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const nsAString& aUnmodifiedCharacters);
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virtual nsresult SynthesizeNativeMouseEvent(nsIntPoint aPoint,
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uint32_t aNativeMessage,
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uint32_t aModifierFlags);
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virtual nsresult SynthesizeNativeMouseMove(nsIntPoint aPoint)
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{ return SynthesizeNativeMouseEvent(aPoint, MOUSEEVENTF_MOVE, 0); }
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virtual nsresult SynthesizeNativeMouseScrollEvent(nsIntPoint aPoint,
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uint32_t aNativeMessage,
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double aDeltaX,
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double aDeltaY,
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double aDeltaZ,
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uint32_t aModifierFlags,
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uint32_t aAdditionalFlags);
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NS_IMETHOD NotifyIME(NotificationToIME aNotification) MOZ_OVERRIDE;
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NS_IMETHOD_(void) SetInputContext(const InputContext& aContext,
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const InputContextAction& aAction);
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NS_IMETHOD_(InputContext) GetInputContext();
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NS_IMETHOD GetToggledKeyState(uint32_t aKeyCode, bool* aLEDState);
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NS_IMETHOD RegisterTouchWindow();
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NS_IMETHOD UnregisterTouchWindow();
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#ifdef MOZ_XUL
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virtual void SetTransparencyMode(nsTransparencyMode aMode);
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virtual nsTransparencyMode GetTransparencyMode();
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virtual void UpdateOpaqueRegion(const nsIntRegion& aOpaqueRegion);
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#endif // MOZ_XUL
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NS_IMETHOD NotifyIMEOfTextChange(uint32_t aStart,
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uint32_t aOldEnd,
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uint32_t aNewEnd) MOZ_OVERRIDE;
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virtual nsIMEUpdatePreference GetIMEUpdatePreference();
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NS_IMETHOD GetNonClientMargins(nsIntMargin &margins);
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NS_IMETHOD SetNonClientMargins(nsIntMargin &margins);
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void SetDrawsInTitlebar(bool aState);
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/**
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* Event helpers
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*/
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virtual bool DispatchMouseEvent(uint32_t aEventType, WPARAM wParam,
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LPARAM lParam,
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bool aIsContextMenuKey = false,
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int16_t aButton = nsMouseEvent::eLeftButton,
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uint16_t aInputSource = nsIDOMMouseEvent::MOZ_SOURCE_MOUSE);
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virtual bool DispatchWindowEvent(nsGUIEvent*event, nsEventStatus &aStatus);
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void DispatchPendingEvents();
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bool DispatchPluginEvent(UINT aMessage,
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WPARAM aWParam,
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LPARAM aLParam,
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bool aDispatchPendingEvents);
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void SuppressBlurEvents(bool aSuppress); // Called from nsFilePicker
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bool BlurEventsSuppressed();
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#ifdef ACCESSIBILITY
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/**
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* Return an accessible associated with the window.
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*/
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mozilla::a11y::Accessible* GetAccessible();
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#endif // ACCESSIBILITY
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/**
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* Window utilities
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*/
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nsWindow* GetTopLevelWindow(bool aStopOnDialogOrPopup);
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WNDPROC GetPrevWindowProc() { return mPrevWndProc; }
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WindowHook& GetWindowHook() { return mWindowHook; }
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nsWindow* GetParentWindow(bool aIncludeOwner);
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// Get an array of all nsWindow*s on the main thread.
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typedef void (WindowEnumCallback)(nsWindow*);
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static void EnumAllWindows(WindowEnumCallback aCallback);
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/**
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* Misc.
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*/
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virtual bool AutoErase(HDC dc);
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nsIntPoint* GetLastPoint() { return &mLastPoint; }
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bool IsTopLevelWidget() { return mIsTopWidgetWindow; }
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/**
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* Start allowing Direct3D9 to be used by widgets when GetLayerManager is
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* called.
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*
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* @param aReinitialize Call GetLayerManager on widgets to ensure D3D9 is
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* initialized, this is usually called when this function
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* is triggered by timeout and not user/web interaction.
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*/
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static void StartAllowingD3D9(bool aReinitialize);
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/**
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* AssociateDefaultIMC() associates or disassociates the default IMC for
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* the window.
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*
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* @param aAssociate TRUE, associates the default IMC with the window.
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* Otherwise, disassociates the default IMC from the
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* window.
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* @return TRUE if this method associated the default IMC with
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* disassociated window or disassociated the default IMC
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* from associated window.
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* Otherwise, i.e., if this method did nothing actually,
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* FALSE.
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*/
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bool AssociateDefaultIMC(bool aAssociate);
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bool HasTaskbarIconBeenCreated() { return mHasTaskbarIconBeenCreated; }
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// Called when either the nsWindow or an nsITaskbarTabPreview receives the noticiation that this window
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// has its icon placed on the taskbar.
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void SetHasTaskbarIconBeenCreated(bool created = true) { mHasTaskbarIconBeenCreated = created; }
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// Getter/setter for the nsITaskbarWindowPreview for this nsWindow
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already_AddRefed<nsITaskbarWindowPreview> GetTaskbarPreview() {
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nsCOMPtr<nsITaskbarWindowPreview> preview(do_QueryReferent(mTaskbarPreview));
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return preview.forget();
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}
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void SetTaskbarPreview(nsITaskbarWindowPreview *preview) { mTaskbarPreview = do_GetWeakReference(preview); }
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NS_IMETHOD ReparentNativeWidget(nsIWidget* aNewParent);
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// Open file picker tracking
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void PickerOpen();
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void PickerClosed();
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bool const DestroyCalled() { return mDestroyCalled; }
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virtual mozilla::layers::LayersBackend GetPreferredCompositorBackend() { return mozilla::layers::LAYERS_D3D11; }
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protected:
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// A magic number to identify the FAKETRACKPOINTSCROLLABLE window created
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// when the trackpoint hack is enabled.
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enum { eFakeTrackPointScrollableID = 0x46545053 };
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/**
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* Callbacks
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*/
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static LRESULT CALLBACK WindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
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static LRESULT CALLBACK WindowProcInternal(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
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static BOOL CALLBACK BroadcastMsgToChildren(HWND aWnd, LPARAM aMsg);
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static BOOL CALLBACK BroadcastMsg(HWND aTopWindow, LPARAM aMsg);
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static BOOL CALLBACK DispatchStarvedPaints(HWND aTopWindow, LPARAM aMsg);
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static BOOL CALLBACK RegisterTouchForDescendants(HWND aTopWindow, LPARAM aMsg);
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static BOOL CALLBACK UnregisterTouchForDescendants(HWND aTopWindow, LPARAM aMsg);
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static LRESULT CALLBACK MozSpecialMsgFilter(int code, WPARAM wParam, LPARAM lParam);
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static LRESULT CALLBACK MozSpecialWndProc(int code, WPARAM wParam, LPARAM lParam);
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static LRESULT CALLBACK MozSpecialMouseProc(int code, WPARAM wParam, LPARAM lParam);
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static VOID CALLBACK HookTimerForPopups( HWND hwnd, UINT uMsg, UINT idEvent, DWORD dwTime );
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static BOOL CALLBACK ClearResourcesCallback(HWND aChild, LPARAM aParam);
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static BOOL CALLBACK EnumAllChildWindProc(HWND aWnd, LPARAM aParam);
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static BOOL CALLBACK EnumAllThreadWindowProc(HWND aWnd, LPARAM aParam);
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static void AllowD3D9Callback(nsWindow *aWindow);
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static void AllowD3D9WithReinitializeCallback(nsWindow *aWindow);
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/**
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* Window utilities
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*/
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LPARAM lParamToScreen(LPARAM lParam);
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LPARAM lParamToClient(LPARAM lParam);
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virtual void SubclassWindow(BOOL bState);
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bool CanTakeFocus();
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bool UpdateNonClientMargins(int32_t aSizeMode = -1, bool aReflowWindow = true);
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void UpdateGetWindowInfoCaptionStatus(bool aActiveCaption);
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void ResetLayout();
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void InvalidateNonClientRegion();
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HRGN ExcludeNonClientFromPaintRegion(HRGN aRegion);
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static void GetMainWindowClass(nsAString& aClass);
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bool HasGlass() const {
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return mTransparencyMode == eTransparencyGlass ||
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mTransparencyMode == eTransparencyBorderlessGlass;
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}
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/**
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* Event processing helpers
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*/
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void DispatchFocusToTopLevelWindow(bool aIsActivate);
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bool DispatchStandardEvent(uint32_t aMsg);
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bool DispatchCommandEvent(uint32_t aEventCommand);
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void RelayMouseEvent(UINT aMsg, WPARAM wParam, LPARAM lParam);
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virtual bool ProcessMessage(UINT msg, WPARAM &wParam,
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LPARAM &lParam, LRESULT *aRetValue);
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bool ExternalHandlerProcessMessage(
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UINT aMessage, WPARAM& aWParam,
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LPARAM& aLParam, MSGResult& aResult);
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bool ProcessMessageForPlugin(const MSG &aMsg,
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MSGResult& aResult);
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LRESULT ProcessCharMessage(const MSG &aMsg,
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bool *aEventDispatched);
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LRESULT ProcessKeyUpMessage(const MSG &aMsg,
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bool *aEventDispatched);
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LRESULT ProcessKeyDownMessage(const MSG &aMsg,
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bool *aEventDispatched);
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static bool EventIsInsideWindow(UINT Msg, nsWindow* aWindow);
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// Convert nsEventStatus value to a windows boolean
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static bool ConvertStatus(nsEventStatus aStatus);
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static void PostSleepWakeNotification(const bool aIsSleepMode);
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int32_t ClientMarginHitTestPoint(int32_t mx, int32_t my);
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/**
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* Event handlers
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*/
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virtual void OnDestroy();
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virtual bool OnMove(int32_t aX, int32_t aY);
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virtual bool OnResize(nsIntRect &aWindowRect);
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bool OnGesture(WPARAM wParam, LPARAM lParam);
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bool OnTouch(WPARAM wParam, LPARAM lParam);
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bool OnHotKey(WPARAM wParam, LPARAM lParam);
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bool OnPaint(HDC aDC, uint32_t aNestingLevel);
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void OnWindowPosChanged(WINDOWPOS *wp, bool& aResult);
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void OnWindowPosChanging(LPWINDOWPOS& info);
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void OnSysColorChanged();
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/**
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* Function that registers when the user has been active (used for detecting
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* when the user is idle).
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*/
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void UserActivity();
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int32_t GetHeight(int32_t aProposedHeight);
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void GetWindowClass(nsString& aWindowClass);
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void GetWindowPopupClass(nsString& aWindowClass);
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virtual DWORD WindowStyle();
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DWORD WindowExStyle();
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void RegisterWindowClass(const nsString& aClassName,
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UINT aExtraStyle,
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LPWSTR aIconID);
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/**
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* XP and Vista theming support for windows with rounded edges
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*/
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void ClearThemeRegion();
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void SetThemeRegion();
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/**
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* Popup hooks
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*/
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static void ScheduleHookTimer(HWND aWnd, UINT aMsgId);
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static void RegisterSpecialDropdownHooks();
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static void UnregisterSpecialDropdownHooks();
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static bool DealWithPopups(HWND inWnd, UINT inMsg, WPARAM inWParam, LPARAM inLParam, LRESULT* outResult);
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/**
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* Window transparency helpers
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*/
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#ifdef MOZ_XUL
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private:
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void SetWindowTranslucencyInner(nsTransparencyMode aMode);
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nsTransparencyMode GetWindowTranslucencyInner() const { return mTransparencyMode; }
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void ResizeTranslucentWindow(int32_t aNewWidth, int32_t aNewHeight, bool force = false);
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nsresult UpdateTranslucentWindow();
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void ClearTranslucentWindow();
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void SetupTranslucentWindowMemoryBitmap(nsTransparencyMode aMode);
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void UpdateGlass();
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protected:
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#endif // MOZ_XUL
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static bool IsAsyncResponseEvent(UINT aMsg, LRESULT& aResult);
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void IPCWindowProcHandler(UINT& msg, WPARAM& wParam, LPARAM& lParam);
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/**
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* Misc.
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*/
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void StopFlashing();
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static bool IsTopLevelMouseExit(HWND aWnd);
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nsresult SetWindowClipRegion(const nsTArray<nsIntRect>& aRects,
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bool aIntersectWithExisting);
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nsIntRegion GetRegionToPaint(bool aForceFullRepaint,
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PAINTSTRUCT ps, HDC aDC);
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static void ActivateOtherWindowHelper(HWND aWnd);
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void ClearCachedResources();
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nsIWidgetListener* GetPaintListener();
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protected:
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nsCOMPtr<nsIWidget> mParent;
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nsIntSize mLastSize;
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nsIntPoint mLastPoint;
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HWND mWnd;
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WNDPROC mPrevWndProc;
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HBRUSH mBrush;
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bool mIsTopWidgetWindow;
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bool mInDtor;
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bool mIsVisible;
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bool mUnicodeWidget;
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bool mPainting;
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bool mTouchWindow;
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bool mDisplayPanFeedback;
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bool mHideChrome;
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bool mIsRTL;
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bool mFullscreenMode;
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bool mMousePresent;
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bool mDestroyCalled;
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uint32_t mBlurSuppressLevel;
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DWORD_PTR mOldStyle;
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DWORD_PTR mOldExStyle;
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nsNativeDragTarget* mNativeDragTarget;
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HKL mLastKeyboardLayout;
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nsSizeMode mOldSizeMode;
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nsSizeMode mLastSizeMode;
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WindowHook mWindowHook;
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DWORD mAssumeWheelIsZoomUntil;
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uint32_t mPickerDisplayCount;
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HICON mIconSmall;
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HICON mIconBig;
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static bool sDropShadowEnabled;
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static uint32_t sInstanceCount;
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static TriStateBool sCanQuit;
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static nsWindow* sCurrentWindow;
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static BOOL sIsOleInitialized;
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static HCURSOR sHCursor;
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static imgIContainer* sCursorImgContainer;
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static bool sSwitchKeyboardLayout;
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static bool sJustGotDeactivate;
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static bool sJustGotActivate;
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static bool sIsInMouseCapture;
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static int sTrimOnMinimize;
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static const char* sDefaultMainWindowClass;
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static bool sAllowD3D9;
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// Always use the helper method to read this property. See bug 603793.
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static TriStateBool sHasBogusPopupsDropShadowOnMultiMonitor;
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|
static bool HasBogusPopupsDropShadowOnMultiMonitor();
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|
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static uint32_t sOOPPPluginFocusEvent;
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|
|
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// Non-client margin settings
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|
// Pre-calculated outward offset applied to default frames
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|
nsIntMargin mNonClientOffset;
|
|
// Margins set by the owner
|
|
nsIntMargin mNonClientMargins;
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|
|
|
// Indicates custom frames are enabled
|
|
bool mCustomNonClient;
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|
// Cached copy of L&F's resize border
|
|
int32_t mHorResizeMargin;
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|
int32_t mVertResizeMargin;
|
|
// Height of the caption plus border
|
|
int32_t mCaptionHeight;
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|
|
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nsCOMPtr<nsIIdleServiceInternal> mIdleService;
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|
|
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// Hook Data Memebers for Dropdowns. sProcessHook Tells the
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|
// hook methods whether they should be processing the hook
|
|
// messages.
|
|
static HHOOK sMsgFilterHook;
|
|
static HHOOK sCallProcHook;
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|
static HHOOK sCallMouseHook;
|
|
static bool sProcessHook;
|
|
static UINT sRollupMsgId;
|
|
static HWND sRollupMsgWnd;
|
|
static UINT sHookTimerId;
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|
|
|
// 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;
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|
|
|
// Graphics
|
|
HDC mPaintDC; // only set during painting
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|
|
|
#ifdef CAIRO_HAS_D2D_SURFACE
|
|
nsRefPtr<gfxD2DSurface> mD2DWindowSurface; // Surface for this window.
|
|
#endif
|
|
|
|
// Transparency
|
|
#ifdef MOZ_XUL
|
|
// Use layered windows to support full 256 level alpha translucency
|
|
nsRefPtr<gfxASurface> mTransparentSurface;
|
|
HDC mMemoryDC;
|
|
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;
|
|
|
|
// 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;
|
|
|
|
static bool sNeedsToInitMouseWheelSettings;
|
|
static void InitMouseWheelScrollData();
|
|
};
|
|
|
|
/**
|
|
* A child window is a window with different style.
|
|
*/
|
|
class ChildWindow : public nsWindow {
|
|
|
|
public:
|
|
ChildWindow() {}
|
|
|
|
protected:
|
|
virtual DWORD WindowStyle();
|
|
};
|
|
|
|
#endif // Window_h__
|