mirror of
https://github.com/mozilla/gecko-dev.git
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519 lines
21 KiB
C++
519 lines
21 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Robert O'Callahan <roc+moz@cs.cmu.edu>
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* Dean Tessman <dean_tessman@hotmail.com>
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* Makoto Kato <m_kato@ga2.so-net.ne.jp>
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* Dainis Jonitis <Dainis_Jonitis@swh-t.lv>
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* Masayuki Nakano <masayuki@d-toybox.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef Window_h__
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#define Window_h__
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#include "nsBaseWidget.h"
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#include "nsdefs.h"
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#include "nsSwitchToUIThread.h"
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#include "nsToolkit.h"
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#include "nsIWidget.h"
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#include "nsIKBStateControl.h"
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#include "nsIMouseListener.h"
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#include "nsIEventListener.h"
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#include "nsString.h"
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#include "nsVoidArray.h"
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class nsNativeDragTarget;
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class nsIRollupListener;
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class nsIMenuBar;
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class nsIFile;
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class imgIContainer;
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#ifdef ACCESSIBILITY
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#include "OLEACC.H"
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#include "nsIAccessible.h"
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#endif
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#include "gfxWindowsSurface.h"
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#define IME_MAX_CHAR_POS 64
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#define NSRGB_2_COLOREF(color) \
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RGB(NS_GET_R(color),NS_GET_G(color),NS_GET_B(color))
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#define COLOREF_2_NSRGB(color) \
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NS_RGB(GetRValue(color), GetGValue(color), GetBValue(color))
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#define WIN2K_VERSION 0x500
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#define WINXP_VERSION 0x501
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#define WIN2K3_VERSION 0x502
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#define VISTA_VERSION 0x600
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PRInt32 GetWindowsVersion();
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/*
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* ::: IMPORTANT :::
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* External apps and drivers depend on window class names.
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* For example, changing the window classes
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* could break touchpad scrolling or screen readers.
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*/
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const PRUint32 kMaxClassNameLength = 40;
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const LPCWSTR kWClassNameHidden = L"MozillaHiddenWindowClass";
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const LPCWSTR kWClassNameUI = L"MozillaUIWindowClass";
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const LPCWSTR kWClassNameContent = L"MozillaContentWindowClass";
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const LPCWSTR kWClassNameContentFrame = L"MozillaContentFrameWindowClass";
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const LPCWSTR kWClassNameGeneral = L"MozillaWindowClass";
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const LPCWSTR kWClassNameDialog = L"MozillaDialogClass";
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const LPCSTR kClassNameHidden = "MozillaHiddenWindowClass";
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const LPCSTR kClassNameUI = "MozillaUIWindowClass";
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const LPCSTR kClassNameContent = "MozillaContentWindowClass";
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const LPCSTR kClassNameContentFrame = "MozillaContentFrameWindowClass";
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const LPCSTR kClassNameGeneral = "MozillaWindowClass";
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const LPCSTR kClassNameDialog = "MozillaDialogClass";
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/**
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* Native WIN32 window wrapper.
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*/
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class nsWindow : public nsSwitchToUIThread,
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public nsBaseWidget,
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public nsIKBStateControl
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{
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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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// nsIWidget interface
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NS_IMETHOD Create(nsIWidget *aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell = nsnull,
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nsIToolkit *aToolkit = nsnull,
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nsWidgetInitData *aInitData = nsnull);
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NS_IMETHOD Create(nsNativeWidget aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell = nsnull,
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nsIToolkit *aToolkit = nsnull,
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nsWidgetInitData *aInitData = nsnull);
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// Utility method for implementing both Create(nsIWidget ...) and
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// Create(nsNativeWidget...)
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virtual nsresult StandardWindowCreate(nsIWidget *aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell,
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nsIToolkit *aToolkit,
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nsWidgetInitData *aInitData,
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nsNativeWidget aNativeParent = nsnull);
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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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NS_IMETHOD Show(PRBool bState);
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NS_IMETHOD IsVisible(PRBool & aState);
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NS_IMETHOD PlaceBehind(nsTopLevelWidgetZPlacement aPlacement, nsIWidget *aWidget, PRBool aActivate);
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NS_IMETHOD SetSizeMode(PRInt32 aMode);
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NS_IMETHOD ModalEventFilter(PRBool aRealEvent, void *aEvent, PRBool *aForWindow);
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NS_IMETHOD CaptureMouse(PRBool aCapture);
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NS_IMETHOD ConstrainPosition(PRBool aAllowSlop, PRInt32 *aX, PRInt32 *aY);
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NS_IMETHOD Move(PRInt32 aX, PRInt32 aY);
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NS_IMETHOD Resize(PRInt32 aWidth, PRInt32 aHeight, PRBool aRepaint);
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NS_IMETHOD Resize(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight, PRBool aRepaint);
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NS_IMETHOD Enable(PRBool aState);
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NS_IMETHOD IsEnabled(PRBool *aState);
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NS_IMETHOD SetFocus(PRBool aRaise);
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NS_IMETHOD GetBounds(nsRect &aRect);
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NS_IMETHOD GetClientBounds(nsRect &aRect);
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NS_IMETHOD GetScreenBounds(nsRect &aRect);
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NS_IMETHOD SetBackgroundColor(const nscolor &aColor);
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NS_IMETHOD SetCursor(nsCursor aCursor);
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NS_IMETHOD SetCursor(imgIContainer* aCursor,
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PRUint32 aHotspotX, PRUint32 aHotspotY);
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NS_IMETHOD HideWindowChrome(PRBool aShouldHide);
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NS_IMETHOD Validate();
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NS_IMETHOD Invalidate(PRBool aIsSynchronous);
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NS_IMETHOD Invalidate(const nsRect & aRect, PRBool aIsSynchronous);
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NS_IMETHOD InvalidateRegion(const nsIRegion *aRegion, PRBool aIsSynchronous);
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NS_IMETHOD Update();
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virtual void* GetNativeData(PRUint32 aDataType);
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virtual void FreeNativeData(void * data, PRUint32 aDataType);//~~~
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NS_IMETHOD SetColorMap(nsColorMap *aColorMap);
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//XXX-Scroll is obsolete it is going away soon
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NS_IMETHOD Scroll(PRInt32 aDx, PRInt32 aDy, nsRect *aClipRect);
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NS_IMETHOD ScrollWidgets(PRInt32 aDx, PRInt32 aDy);
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NS_IMETHOD ScrollRect(nsRect &aRect, PRInt32 aDx, PRInt32 aDy);
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NS_IMETHOD SetTitle(const nsAString& aTitle);
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NS_IMETHOD SetIcon(const nsAString& aIconSpec);
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NS_IMETHOD SetMenuBar(nsIMenuBar * aMenuBar) { return NS_ERROR_FAILURE; }
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NS_IMETHOD ShowMenuBar(PRBool aShow) { return NS_ERROR_FAILURE; }
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NS_IMETHOD WidgetToScreen(const nsRect& aOldRect, nsRect& aNewRect);
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NS_IMETHOD ScreenToWidget(const nsRect& aOldRect, nsRect& aNewRect);
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NS_IMETHOD BeginResizingChildren(void);
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NS_IMETHOD EndResizingChildren(void);
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NS_IMETHOD GetPreferredSize(PRInt32& aWidth, PRInt32& aHeight);
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NS_IMETHOD SetPreferredSize(PRInt32 aWidth, PRInt32 aHeight);
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NS_IMETHOD DispatchEvent(nsGUIEvent* event, nsEventStatus & aStatus);
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NS_IMETHOD EnableDragDrop(PRBool aEnable);
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virtual void SetUpForPaint(HDC aHDC);
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virtual void ConvertToDeviceCoordinates(nscoord& aX,nscoord& aY) {}
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NS_IMETHOD CaptureRollupEvents(nsIRollupListener * aListener, PRBool aDoCapture, PRBool aConsumeRollupEvent);
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NS_IMETHOD GetAttention(PRInt32 aCycleCount);
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NS_IMETHOD GetLastInputEventTime(PRUint32& aTime);
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nsWindow* GetTopLevelWindow();
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gfxASurface *GetThebesSurface();
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#ifdef MOZ_XUL
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NS_IMETHOD SetHasTransparentBackground(PRBool aTransparent);
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NS_IMETHOD GetHasTransparentBackground(PRBool& aTransparent);
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private:
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nsresult SetWindowTranslucencyInner(PRBool aTransparent);
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PRBool GetWindowTranslucencyInner() { return mIsTransparent; }
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void ResizeTranslucentWindow(PRInt32 aNewWidth, PRInt32 aNewHeight, PRBool force = PR_FALSE);
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nsresult UpdateTranslucentWindow();
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nsresult SetupTranslucentWindowMemoryBitmap(PRBool aTransparent);
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public:
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#endif
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// nsIKBStateControl interface
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NS_IMETHOD ResetInputState();
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NS_IMETHOD SetIMEOpenState(PRBool aState);
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NS_IMETHOD GetIMEOpenState(PRBool* aState);
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NS_IMETHOD SetIMEEnabled(PRUint32 aState);
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NS_IMETHOD GetIMEEnabled(PRUint32* aState);
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NS_IMETHOD CancelIMEComposition();
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NS_IMETHOD GetToggledKeyState(PRUint32 aKeyCode, PRBool* aLEDState);
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PRBool IMEMouseHandling(PRInt32 aAction, LPARAM lParam);
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PRBool IMECompositionHitTest(POINT * ptPos);
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PRBool HandleMouseActionOfIME(PRInt32 aAction, POINT* ptPos);
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void GetCompositionWindowPos(HIMC hIMC, PRUint32 aEventType, COMPOSITIONFORM *cpForm);
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// nsSwitchToUIThread interface
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virtual BOOL CallMethod(MethodInfo *info);
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HWND GetWindowHandle() { return mWnd; }
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WNDPROC GetPrevWindowProc() { return mPrevWndProc; }
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virtual PRBool DispatchMouseEvent(PRUint32 aEventType, WPARAM wParam,
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LPARAM lParam,
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PRBool aIsContextMenuKey = PR_FALSE,
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PRInt16 aButton = nsMouseEvent::eLeftButton);
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#ifdef ACCESSIBILITY
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virtual PRBool DispatchAccessibleEvent(PRUint32 aEventType, nsIAccessible** aAccessible, nsPoint* aPoint = nsnull);
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already_AddRefed<nsIAccessible> GetRootAccessible();
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#endif
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virtual PRBool AutoErase();
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nsPoint* GetLastPoint() { return &mLastPoint; }
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PRInt32 GetNewCmdMenuId() { mMenuCmdId++; return mMenuCmdId; }
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void InitEvent(nsGUIEvent& event, nsPoint* aPoint = nsnull);
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void SuppressBlurEvents(PRBool aSuppress);
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PRBool BlurEventsSuppressed();
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protected:
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#ifndef WINCE
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// special callback hook methods for pop ups
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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 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 void PostSleepWakeNotification(const char* aNotification);
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#endif
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static BOOL DealWithPopups (HWND inWnd, UINT inMsg, WPARAM inWParam, LPARAM inLParam, LRESULT* outResult);
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static PRBool EventIsInsideWindow(UINT Msg, nsWindow* aWindow);
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static nsWindow* GetNSWindowPtr(HWND aWnd);
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static BOOL SetNSWindowPtr(HWND aWnd, nsWindow * ptr);
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nsWindow* GetParent(PRBool aStopOnFirstTopLevel);
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void DispatchPendingEvents();
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virtual PRBool ProcessMessage(UINT msg, WPARAM wParam, LPARAM lParam, LRESULT *aRetValue);
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virtual PRBool DispatchWindowEvent(nsGUIEvent* event);
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virtual PRBool DispatchWindowEvent(nsGUIEvent*event, nsEventStatus &aStatus);
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// Allow Derived classes to modify the height that is passed
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// when the window is created or resized.
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virtual PRInt32 GetHeight(PRInt32 aProposedHeight);
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virtual LPCWSTR WindowClassW();
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virtual LPCWSTR WindowPopupClassW();
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virtual LPCTSTR WindowClass();
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virtual LPCTSTR WindowPopupClass();
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virtual DWORD WindowStyle();
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virtual DWORD WindowExStyle();
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virtual void SubclassWindow(BOOL bState);
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virtual void OnDestroy();
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virtual PRBool OnMove(PRInt32 aX, PRInt32 aY);
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virtual PRBool OnPaint(HDC aDC = nsnull);
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virtual PRBool OnResize(nsRect &aWindowRect);
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BOOL OnChar(UINT charCode, LPARAM keyData, PRUint32 aFlags = 0);
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BOOL OnKeyDown( UINT aVirtualKeyCode, UINT aScanCode, LPARAM aKeyCode);
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BOOL OnKeyUp( UINT aVirtualKeyCode, UINT aScanCode, LPARAM aKeyCode);
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UINT MapFromNativeToDOM(UINT aNativeKeyCode);
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BOOL OnInputLangChange(HKL aHKL, LRESULT *oResult);
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BOOL OnIMEChar(BYTE aByte1, BYTE aByte2, LPARAM aKeyState);
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BOOL OnIMEComposition(LPARAM aGCS);
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BOOL OnIMECompositionFull();
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BOOL OnIMEEndComposition();
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BOOL OnIMENotify(WPARAM aIMN, LPARAM aData, LRESULT *oResult);
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BOOL OnIMERequest(WPARAM aIMR, LPARAM aData, LRESULT *oResult);
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BOOL OnIMESelect(BOOL aSelected, WORD aLangID);
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BOOL OnIMESetContext(BOOL aActive, LPARAM& aISC);
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BOOL OnIMEStartComposition();
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BOOL OnIMEReconvert(LPARAM aData, LRESULT *oResult);
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BOOL OnIMEQueryCharPosition(LPARAM aData, LRESULT *oResult);
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void GetCompositionString(HIMC aHIMC, DWORD aIndex, nsString* aStrUnicode);
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void ResolveIMECaretPos(nsWindow* aClient,
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nsRect& aEventResult,
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nsRect& aResult);
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virtual PRBool DispatchKeyEvent(PRUint32 aEventType, WORD aCharCode, UINT aVirtualCharCode,
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LPARAM aKeyCode, PRUint32 aFlags = 0);
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virtual PRBool DispatchFocus(PRUint32 aEventType, PRBool isMozWindowTakingFocus);
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virtual PRBool OnScroll(UINT scrollCode, int cPos);
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virtual HBRUSH OnControlColor();
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static LRESULT CALLBACK WindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
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static LRESULT CALLBACK DefaultWindowProc(HWND hWns, UINT msg, WPARAM wParam, LPARAM lParam);
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// Convert nsEventStatus value to a windows boolean
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static PRBool ConvertStatus(nsEventStatus aStatus)
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{ return aStatus == nsEventStatus_eConsumeNoDefault; }
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PRBool DispatchStandardEvent(PRUint32 aMsg);
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PRBool DispatchCommandEvent(PRUint32 aEventCommand);
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void RelayMouseEvent(UINT aMsg, WPARAM wParam, LPARAM lParam);
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void GetNonClientBounds(nsRect &aRect);
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void HandleTextEvent(HIMC hIMEContext, PRBool aCheckAttr=PR_TRUE);
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BOOL HandleStartComposition(HIMC hIMEContext);
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void HandleEndComposition(void);
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void GetTextRangeList(PRUint32* textRangeListLengthResult, nsTextRangeArray* textRangeListResult);
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void ConstrainZLevel(HWND *aAfter);
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LPARAM lParamToScreen(LPARAM lParam);
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LPARAM lParamToClient(LPARAM lParam);
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PRBool CanTakeFocus();
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private:
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#ifdef DEBUG
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void DebugPrintEvent(nsGUIEvent& aEvent, HWND aWnd);
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#endif
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protected:
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// Count of nsWindow instances. Used to manage IME buffers
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static PRUint32 sInstanceCount;
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// For Input Method Support
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// Only one set of IME buffers is needed for a process.
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static PRBool sIMEIsComposing;
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static PRBool sIMEIsStatusChanged;
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static DWORD sIMEProperty;
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static nsString* sIMECompUnicode;
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static PRUint8* sIMEAttributeArray;
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static PRInt32 sIMEAttributeArrayLength;
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static PRInt32 sIMEAttributeArraySize;
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static PRUint32* sIMECompClauseArray;
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static PRInt32 sIMECompClauseArrayLength;
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static PRInt32 sIMECompClauseArraySize;
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static long sIMECursorPosition;
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static PRUnichar* sIMEReconvertUnicode; // reconvert string
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// For describing composing frame
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static RECT* sIMECompCharPos;
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static PRInt32 sIMECaretHeight;
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static PRBool sIsInEndSession;
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nsSize mLastSize;
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static nsWindow* gCurrentWindow;
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nsPoint mLastPoint;
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HWND mWnd;
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HDC mPaintDC; // only set during painting
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#if 0
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HPALETTE mPalette;
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#endif
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WNDPROC mPrevWndProc;
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HBRUSH mBrush;
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#ifdef MOZ_XUL
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// use layered windows to support full 256 level alpha translucency
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nsRefPtr<gfxWindowsSurface> mTransparentSurface;
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HDC mMemoryDC;
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HBITMAP mMemoryBitmap;
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PRUint8* mMemoryBits;
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PRUint8* mAlphaMask;
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PRPackedBool mIsTransparent;
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PRPackedBool mIsTopTransparent; // Topmost window itself or any of it's child windows has tranlucency enabled
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#endif
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PRPackedBool mHasAeroGlass;
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PRPackedBool mIsTopWidgetWindow;
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PRPackedBool mHas3DBorder;
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PRPackedBool mIsShiftDown;
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PRPackedBool mIsControlDown;
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PRPackedBool mIsAltDown;
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PRPackedBool mIsDestroying;
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PRPackedBool mOnDestroyCalled;
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PRPackedBool mIsVisible;
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PRPackedBool mIsInMouseCapture;
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PRPackedBool mIsInMouseWheelProcessing;
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PRPackedBool mUnicodeWidget;
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PRPackedBool mPainting;
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char mLeadByte;
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PRUint32 mBlurEventSuppressionLevel;
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nsContentType mContentType;
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PRInt32 mPreferredWidth;
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PRInt32 mPreferredHeight;
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PRInt32 mMenuCmdId;
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// Window styles used by this window before chrome was hidden
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DWORD mOldStyle;
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DWORD mOldExStyle;
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// To enable/disable IME
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HIMC mOldIMC;
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PRUint32 mIMEEnabled;
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static HKL gKeyboardLayout;
|
|
static PRBool gSwitchKeyboardLayout;
|
|
|
|
HKL mLastKeyboardLayout;
|
|
|
|
// Drag & Drop
|
|
nsNativeDragTarget * mNativeDragTarget;
|
|
|
|
// Enumeration of the methods which are accessible on the "main GUI thread"
|
|
// via the CallMethod(...) mechanism...
|
|
// see nsSwitchToUIThread
|
|
enum {
|
|
CREATE = 0x0101,
|
|
CREATE_NATIVE,
|
|
DESTROY,
|
|
SET_FOCUS,
|
|
SET_CURSOR,
|
|
CREATE_HACK
|
|
};
|
|
|
|
static BOOL sIsRegistered;
|
|
static BOOL sIsPopupClassRegistered;
|
|
static BOOL sIsOleInitialized; // OLE is needed for clipboard and drag & drop support
|
|
|
|
HDWP mDeferredPositioner;
|
|
static UINT uWM_MSIME_MOUSE; // mouse message for MSIME
|
|
|
|
// Heap dump
|
|
static UINT uWM_HEAP_DUMP; // Dump heap to a file
|
|
|
|
// Cursor caching
|
|
static HCURSOR gHCursor;
|
|
static imgIContainer* gCursorImgContainer;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
static BOOL gIsAccessibilityOn;
|
|
static HINSTANCE gmAccLib;
|
|
static LPFNLRESULTFROMOBJECT gmLresultFromObject;
|
|
static STDMETHODIMP_(LRESULT) LresultFromObject(REFIID riid, WPARAM wParam, LPUNKNOWN pAcc);
|
|
#endif
|
|
|
|
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 InvalidateForeignChildWindows(HWND aWnd, LPARAM aMsg);
|
|
|
|
public:
|
|
static void GlobalMsgWindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
|
|
static HWND GetTopLevelHWND(HWND aWnd, PRBool aStopOnFirstTopLevel = PR_FALSE);
|
|
};
|
|
|
|
//
|
|
// A child window is a window with different style
|
|
//
|
|
class ChildWindow : public nsWindow {
|
|
|
|
public:
|
|
ChildWindow() {}
|
|
PRBool DispatchMouseEvent(PRUint32 aEventType, WPARAM wParam, LPARAM lParam,
|
|
PRBool aIsContextMenuKey = PR_FALSE,
|
|
PRInt16 aButton = nsMouseEvent::eLeftButton);
|
|
|
|
protected:
|
|
virtual DWORD WindowStyle();
|
|
};
|
|
|
|
|
|
#endif // Window_h__
|