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gecko/widget/windows/nsWindow.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Robert O'Callahan <roc+moz@cs.cmu.edu>
* Dean Tessman <dean_tessman@hotmail.com>
* Makoto Kato <m_kato@ga2.so-net.ne.jp>
* Dainis Jonitis <Dainis_Jonitis@swh-t.lv>
* Masayuki Nakano <masayuki@d-toybox.com>
* Ningjie Chen <chenn@email.uc.edu>
* Jim Mathies <jmathies@mozilla.com>.
* Mats Palmgren <matspal@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef Window_h__
#define Window_h__
/*
* nsWindow - Native window management and event handling.
*/
#include "nsAutoPtr.h"
#include "nsBaseWidget.h"
#include "nsdefs.h"
#include "nsIdleService.h"
#include "nsToolkit.h"
#include "nsString.h"
#include "nsTArray.h"
#include "gfxWindowsSurface.h"
#include "nsWindowDbg.h"
#include "cairo.h"
#include "nsITimer.h"
#include "mozilla/TimeStamp.h"
#ifdef CAIRO_HAS_D2D_SURFACE
#include "gfxD2DSurface.h"
#endif
#include "nsWinGesture.h"
#include "WindowHook.h"
#include "TaskbarWindowPreview.h"
#ifdef ACCESSIBILITY
#include "OLEACC.H"
#include "nsAccessible.h"
#endif
#include "nsUXThemeData.h"
#include "nsIDOMMouseEvent.h"
/**
* Forward class definitions
*/
class nsNativeDragTarget;
class nsIRollupListener;
class nsIFile;
class imgIContainer;
/**
* Native WIN32 window wrapper.
*/
class nsWindow : public nsBaseWidget
{
typedef mozilla::TimeStamp TimeStamp;
typedef mozilla::TimeDuration TimeDuration;
typedef mozilla::widget::WindowHook WindowHook;
typedef mozilla::widget::TaskbarWindowPreview TaskbarWindowPreview;
public:
nsWindow();
virtual ~nsWindow();
NS_DECL_ISUPPORTS_INHERITED
friend class nsWindowGfx;
/**
* nsIWidget interface
*/
NS_IMETHOD Create(nsIWidget *aParent,
nsNativeWidget aNativeParent,
const nsIntRect &aRect,
EVENT_CALLBACK aHandleEventFunction,
nsDeviceContext *aContext,
nsWidgetInitData *aInitData = nsnull);
NS_IMETHOD Destroy();
NS_IMETHOD SetParent(nsIWidget *aNewParent);
virtual nsIWidget* GetParent(void);
virtual float GetDPI();
NS_IMETHOD Show(bool bState);
NS_IMETHOD IsVisible(bool & aState);
NS_IMETHOD ConstrainPosition(bool aAllowSlop, PRInt32 *aX, PRInt32 *aY);
NS_IMETHOD Move(PRInt32 aX, PRInt32 aY);
NS_IMETHOD Resize(PRInt32 aWidth, PRInt32 aHeight, bool aRepaint);
NS_IMETHOD Resize(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight, bool aRepaint);
NS_IMETHOD BeginResizeDrag(nsGUIEvent* aEvent, PRInt32 aHorizontal, PRInt32 aVertical);
NS_IMETHOD PlaceBehind(nsTopLevelWidgetZPlacement aPlacement, nsIWidget *aWidget, bool aActivate);
NS_IMETHOD SetSizeMode(PRInt32 aMode);
NS_IMETHOD Enable(bool aState);
NS_IMETHOD IsEnabled(bool *aState);
NS_IMETHOD SetFocus(bool aRaise);
NS_IMETHOD GetBounds(nsIntRect &aRect);
NS_IMETHOD GetScreenBounds(nsIntRect &aRect);
NS_IMETHOD GetClientBounds(nsIntRect &aRect);
virtual nsIntPoint GetClientOffset();
NS_IMETHOD SetBackgroundColor(const nscolor &aColor);
NS_IMETHOD SetCursor(imgIContainer* aCursor,
PRUint32 aHotspotX, PRUint32 aHotspotY);
NS_IMETHOD SetCursor(nsCursor aCursor);
virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations);
NS_IMETHOD MakeFullScreen(bool aFullScreen);
NS_IMETHOD HideWindowChrome(bool aShouldHide);
NS_IMETHOD Invalidate(bool aEraseBackground = false,
bool aUpdateNCArea = false,
bool aIncludeChildren = false);
NS_IMETHOD Invalidate(const nsIntRect & aRect);
virtual void* GetNativeData(PRUint32 aDataType);
virtual void FreeNativeData(void * data, PRUint32 aDataType);
NS_IMETHOD SetTitle(const nsAString& aTitle);
NS_IMETHOD SetIcon(const nsAString& aIconSpec);
virtual nsIntPoint WidgetToScreenOffset();
virtual nsIntSize ClientToWindowSize(const nsIntSize& aClientSize);
NS_IMETHOD DispatchEvent(nsGUIEvent* event, nsEventStatus & aStatus);
NS_IMETHOD EnableDragDrop(bool aEnable);
NS_IMETHOD CaptureMouse(bool aCapture);
NS_IMETHOD CaptureRollupEvents(nsIRollupListener * aListener,
bool aDoCapture, bool aConsumeRollupEvent);
NS_IMETHOD GetAttention(PRInt32 aCycleCount);
virtual bool HasPendingInputEvent();
virtual LayerManager* GetLayerManager(PLayersChild* aShadowManager = nsnull,
LayersBackend aBackendHint = LayerManager::LAYERS_NONE,
LayerManagerPersistence aPersistence = LAYER_MANAGER_CURRENT,
bool* aAllowRetaining = nsnull);
gfxASurface *GetThebesSurface();
NS_IMETHOD OnDefaultButtonLoaded(const nsIntRect &aButtonRect);
NS_IMETHOD OverrideSystemMouseScrollSpeed(PRInt32 aOriginalDelta, bool aIsHorizontal, PRInt32 &aOverriddenDelta);
virtual nsresult SynthesizeNativeKeyEvent(PRInt32 aNativeKeyboardLayout,
PRInt32 aNativeKeyCode,
PRUint32 aModifierFlags,
const nsAString& aCharacters,
const nsAString& aUnmodifiedCharacters);
virtual nsresult SynthesizeNativeMouseEvent(nsIntPoint aPoint,
PRUint32 aNativeMessage,
PRUint32 aModifierFlags);
virtual nsresult SynthesizeNativeMouseScrollEvent(nsIntPoint aPoint,
PRUint32 aNativeMessage,
double aDeltaX,
double aDeltaY,
double aDeltaZ,
PRUint32 aModifierFlags,
PRUint32 aAdditionalFlags);
NS_IMETHOD ResetInputState();
NS_IMETHOD_(void) SetInputContext(const InputContext& aContext,
const InputContextAction& aAction);
NS_IMETHOD_(InputContext) GetInputContext();
NS_IMETHOD CancelIMEComposition();
NS_IMETHOD GetToggledKeyState(PRUint32 aKeyCode, bool* aLEDState);
NS_IMETHOD RegisterTouchWindow();
NS_IMETHOD UnregisterTouchWindow();
#ifdef MOZ_XUL
virtual void SetTransparencyMode(nsTransparencyMode aMode);
virtual nsTransparencyMode GetTransparencyMode();
virtual void UpdateOpaqueRegion(const nsIntRegion& aOpaqueRegion);
#endif // MOZ_XUL
#ifdef NS_ENABLE_TSF
NS_IMETHOD OnIMEFocusChange(bool aFocus);
NS_IMETHOD OnIMETextChange(PRUint32 aStart, PRUint32 aOldEnd, PRUint32 aNewEnd);
NS_IMETHOD OnIMESelectionChange(void);
#endif // NS_ENABLE_TSF
NS_IMETHOD GetNonClientMargins(nsIntMargin &margins);
NS_IMETHOD SetNonClientMargins(nsIntMargin &margins);
void SetDrawsInTitlebar(bool aState);
/**
* Event helpers
*/
void InitEvent(nsGUIEvent& event, nsIntPoint* aPoint = nsnull);
virtual bool DispatchMouseEvent(PRUint32 aEventType, WPARAM wParam,
LPARAM lParam,
bool aIsContextMenuKey = false,
PRInt16 aButton = nsMouseEvent::eLeftButton,
PRUint16 aInputSource = nsIDOMMouseEvent::MOZ_SOURCE_MOUSE);
virtual bool DispatchWindowEvent(nsGUIEvent* event);
virtual bool DispatchWindowEvent(nsGUIEvent*event, nsEventStatus &aStatus);
virtual bool DispatchKeyEvent(PRUint32 aEventType, WORD aCharCode,
const nsTArray<nsAlternativeCharCode>* aAlternativeChars,
UINT aVirtualCharCode, const MSG *aMsg,
const nsModifierKeyState &aModKeyState,
PRUint32 aFlags = 0);
void DispatchPendingEvents();
bool DispatchPluginEvent(UINT aMessage,
WPARAM aWParam,
LPARAM aLParam,
bool aDispatchPendingEvents);
void SuppressBlurEvents(bool aSuppress); // Called from nsFilePicker
bool BlurEventsSuppressed();
#ifdef ACCESSIBILITY
nsAccessible* DispatchAccessibleEvent(PRUint32 aEventType);
nsAccessible* GetRootAccessible();
#endif // ACCESSIBILITY
/**
* Window utilities
*/
nsWindow* GetTopLevelWindow(bool aStopOnDialogOrPopup);
HWND GetWindowHandle() { return mWnd; }
WNDPROC GetPrevWindowProc() { return mPrevWndProc; }
WindowHook& GetWindowHook() { return mWindowHook; }
nsWindow* GetParentWindow(bool aIncludeOwner);
// Get an array of all nsWindow*s on the main thread.
typedef void (WindowEnumCallback)(nsWindow*);
static void EnumAllWindows(WindowEnumCallback aCallback);
/**
* Misc.
*/
virtual bool AutoErase(HDC dc);
nsIntPoint* GetLastPoint() { return &mLastPoint; }
// needed in nsIMM32Handler.cpp
bool PluginHasFocus()
{
return (mInputContext.mIMEState.mEnabled == IMEState::PLUGIN);
}
bool IsTopLevelWidget() { return mIsTopWidgetWindow; }
/**
* Start allowing Direct3D9 to be used by widgets when GetLayerManager is
* called.
*
* @param aReinitialize Call GetLayerManager on widgets to ensure D3D9 is
* initialized, this is usually called when this function
* is triggered by timeout and not user/web interaction.
*/
static void StartAllowingD3D9(bool aReinitialize);
/**
* 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,
* FALSE.
*/
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(do_QueryReferent(mTaskbarPreview));
return preview.forget();
}
void SetTaskbarPreview(nsITaskbarWindowPreview *preview) { mTaskbarPreview = do_GetWeakReference(preview); }
NS_IMETHOD ReparentNativeWidget(nsIWidget* aNewParent);
// Open file picker tracking
void PickerOpen();
void PickerClosed();
bool const DestroyCalled() { return mDestroyCalled; }
static void SetupKeyModifiersSequence(nsTArray<KeyPair>* aArray, PRUint32 aModifiers);
protected:
// A magic number to identify the FAKETRACKPOINTSCROLLABLE window created
// when the trackpoint hack is enabled.
enum { eFakeTrackPointScrollableID = 0x46545053 };
/**
* 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, LPARAM aMsg);
static BOOL CALLBACK UnregisterTouchForDescendants(HWND aTopWindow, LPARAM aMsg);
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);
static void AllowD3D9Callback(nsWindow *aWindow);
static void AllowD3D9WithReinitializeCallback(nsWindow *aWindow);
/**
* Window utilities
*/
LPARAM lParamToScreen(LPARAM lParam);
LPARAM lParamToClient(LPARAM lParam);
virtual void SubclassWindow(BOOL bState);
bool CanTakeFocus();
bool UpdateNonClientMargins(PRInt32 aSizeMode = -1, bool aReflowWindow = true);
void UpdateGetWindowInfoCaptionStatus(bool aActiveCaption);
void ResetLayout();
void InvalidateNonClientRegion();
HRGN ExcludeNonClientFromPaintRegion(HRGN aRegion);
static void GetMainWindowClass(nsAString& aClass);
bool HasGlass() const {
return mTransparencyMode == eTransparencyGlass ||
mTransparencyMode == eTransparencyBorderlessGlass;
}
/**
* Event processing helpers
*/
bool DispatchPluginEvent(const MSG &aMsg);
bool DispatchFocusToTopLevelWindow(PRUint32 aEventType);
bool DispatchFocus(PRUint32 aEventType);
bool DispatchStandardEvent(PRUint32 aMsg);
bool DispatchCommandEvent(PRUint32 aEventCommand);
void RelayMouseEvent(UINT aMsg, WPARAM wParam, LPARAM lParam);
static void RemoveNextCharMessage(HWND aWnd);
void RemoveMessageAndDispatchPluginEvent(UINT aFirstMsg,
UINT aLastMsg,
nsFakeCharMessage* aFakeCharMessage = nsnull);
virtual bool ProcessMessage(UINT msg, WPARAM &wParam,
LPARAM &lParam, LRESULT *aRetValue);
bool ProcessMessageForPlugin(const MSG &aMsg,
LRESULT *aRetValue, bool &aCallDefWndProc);
LRESULT ProcessCharMessage(const MSG &aMsg,
bool *aEventDispatched);
LRESULT ProcessKeyUpMessage(const MSG &aMsg,
bool *aEventDispatched);
LRESULT ProcessKeyDownMessage(const MSG &aMsg,
bool *aEventDispatched);
static bool EventIsInsideWindow(UINT Msg, nsWindow* aWindow);
// Convert nsEventStatus value to a windows boolean
static bool ConvertStatus(nsEventStatus aStatus);
static void PostSleepWakeNotification(const bool aIsSleepMode);
PRInt32 ClientMarginHitTestPoint(PRInt32 mx, PRInt32 my);
static bool IsRedirectedKeyDownMessage(const MSG &aMsg);
static void ForgetRedirectedKeyDownMessage()
{
sRedirectedKeyDown.message = WM_NULL;
}
/**
* Event handlers
*/
virtual void OnDestroy();
virtual bool OnMove(PRInt32 aX, PRInt32 aY);
virtual bool OnResize(nsIntRect &aWindowRect);
LRESULT OnChar(const MSG &aMsg,
nsModifierKeyState &aModKeyState,
bool *aEventDispatched,
PRUint32 aFlags = 0);
LRESULT OnKeyDown(const MSG &aMsg,
nsModifierKeyState &aModKeyState,
bool *aEventDispatched,
nsFakeCharMessage* aFakeCharMessage);
LRESULT OnKeyUp(const MSG &aMsg,
nsModifierKeyState &aModKeyState,
bool *aEventDispatched);
LRESULT OnCharRaw(UINT charCode, UINT aScanCode,
nsModifierKeyState &aModKeyState,
PRUint32 aFlags = 0,
const MSG *aMsg = nsnull,
bool *aEventDispatched = nsnull);
bool OnGesture(WPARAM wParam, LPARAM lParam);
bool OnTouch(WPARAM wParam, LPARAM lParam);
bool OnHotKey(WPARAM wParam, LPARAM lParam);
BOOL OnInputLangChange(HKL aHKL);
bool OnPaint(HDC aDC, PRUint32 aNestingLevel);
void OnWindowPosChanged(WINDOWPOS *wp, bool& aResult);
void OnWindowPosChanging(LPWINDOWPOS& info);
void OnSysColorChanged();
/**
* Function that registers when the user has been active (used for detecting
* when the user is idle).
*/
void UserActivity();
PRInt32 GetHeight(PRInt32 aProposedHeight);
void GetWindowClass(nsString& aWindowClass);
void GetWindowPopupClass(nsString& aWindowClass);
virtual DWORD WindowStyle();
DWORD WindowExStyle();
void RegisterWindowClass(const nsString& aClassName,
UINT aExtraStyle,
LPWSTR aIconID);
/**
* 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 DealWithPopups(HWND inWnd, UINT inMsg, WPARAM inWParam, LPARAM inLParam, LRESULT* outResult);
/**
* Window transparency helpers
*/
#ifdef MOZ_XUL
private:
void SetWindowTranslucencyInner(nsTransparencyMode aMode);
nsTransparencyMode GetWindowTranslucencyInner() const { return mTransparencyMode; }
void ResizeTranslucentWindow(PRInt32 aNewWidth, PRInt32 aNewHeight, bool force = false);
nsresult UpdateTranslucentWindow();
void SetupTranslucentWindowMemoryBitmap(nsTransparencyMode aMode);
void UpdateGlass();
protected:
#endif // MOZ_XUL
static bool IsAsyncResponseEvent(UINT aMsg, LRESULT& aResult);
void IPCWindowProcHandler(UINT& msg, WPARAM& wParam, LPARAM& lParam);
/**
* Misc.
*/
UINT MapFromNativeToDOM(UINT aNativeKeyCode);
void StopFlashing();
static bool IsTopLevelMouseExit(HWND aWnd);
nsresult SetWindowClipRegion(const nsTArray<nsIntRect>& aRects,
bool aIntersectWithExisting);
nsIntRegion GetRegionToPaint(bool aForceFullRepaint,
PAINTSTRUCT ps, HDC aDC);
static void ActivateOtherWindowHelper(HWND aWnd);
void ClearCachedResources();
nsPopupType PopupType() { return mPopupType; }
protected:
nsCOMPtr<nsIWidget> mParent;
nsIntSize mLastSize;
nsIntPoint mLastPoint;
HWND mWnd;
WNDPROC mPrevWndProc;
HBRUSH mBrush;
bool mIsTopWidgetWindow;
bool mInDtor;
bool mIsVisible;
bool mUnicodeWidget;
bool mPainting;
bool mTouchWindow;
bool mDisplayPanFeedback;
bool mHideChrome;
bool mIsRTL;
bool mFullscreenMode;
bool mMousePresent;
bool mDestroyCalled;
PRUint32 mBlurSuppressLevel;
DWORD_PTR mOldStyle;
DWORD_PTR mOldExStyle;
InputContext mInputContext;
nsNativeDragTarget* mNativeDragTarget;
HKL mLastKeyboardLayout;
nsPopupType mPopupType;
nsSizeMode mOldSizeMode;
WindowHook mWindowHook;
DWORD mAssumeWheelIsZoomUntil;
PRUint32 mPickerDisplayCount;
static bool sDropShadowEnabled;
static PRUint32 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 int sTrimOnMinimize;
static const char* sDefaultMainWindowClass;
static bool sAllowD3D9;
// Always use the helper method to read this property. See bug 603793.
static TriStateBool sHasBogusPopupsDropShadowOnMultiMonitor;
static bool HasBogusPopupsDropShadowOnMultiMonitor();
static PRUint32 sOOPPPluginFocusEvent;
// Non-client margin settings
// Pre-calculated outward offset applied to default frames
nsIntMargin mNonClientOffset;
// Margins set by the owner
nsIntMargin mNonClientMargins;
// Indicates custom frames are enabled
bool mCustomNonClient;
// Cached copy of L&F's resize border
PRInt32 mHorResizeMargin;
PRInt32 mVertResizeMargin;
// Height of the caption plus border
PRInt32 mCaptionHeight;
nsCOMPtr<nsIdleService> mIdleService;
// 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;
// Rollup Listener
static nsIWidget* sRollupWidget;
static bool sRollupConsumeEvent;
static nsIRollupListener* sRollupListener;
// 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
#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;
// sRedirectedKeyDown is WM_KEYDOWN message or WM_SYSKEYDOWN message which
// was reirected to SendInput() API by OnKeyDown().
static MSG sRedirectedKeyDown;
static bool sNeedsToInitMouseWheelSettings;
static void InitMouseWheelScrollData();
// If a window receives WM_KEYDOWN message or WM_SYSKEYDOWM message which is
// redirected message, OnKeyDowm() prevents to dispatch NS_KEY_DOWN event
// because it has been dispatched before the message was redirected.
// However, in some cases, ProcessKeyDownMessage() doesn't call OnKeyDown().
// Then, ProcessKeyDownMessage() needs to forget the redirected message and
// remove WM_CHAR message or WM_SYSCHAR message for the redirected keydown
// message. AutoForgetRedirectedKeyDownMessage struct is a helper struct
// for doing that. This must be created in stack.
struct AutoForgetRedirectedKeyDownMessage
{
AutoForgetRedirectedKeyDownMessage(nsWindow* aWindow, const MSG &aMsg) :
mCancel(!nsWindow::IsRedirectedKeyDownMessage(aMsg)),
mWindow(aWindow), mMsg(aMsg)
{
}
~AutoForgetRedirectedKeyDownMessage()
{
if (mCancel) {
return;
}
// Prevent unnecessary keypress event
if (!mWindow->mOnDestroyCalled) {
nsWindow::RemoveNextCharMessage(mWindow->mWnd);
}
// Foreget the redirected message
nsWindow::ForgetRedirectedKeyDownMessage();
}
bool mCancel;
nsRefPtr<nsWindow> mWindow;
const MSG &mMsg;
};
};
/**
* A child window is a window with different style.
*/
class ChildWindow : public nsWindow {
public:
ChildWindow() {}
protected:
virtual DWORD WindowStyle();
};
#endif // Window_h__
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