/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim:set ts=2 sts=2 sw=2 et cin: */ /* ***** 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): * Dean Tessman * Ere Maijala * Mark Hammond * Michael Lowe * Peter Bajusz * Pierre Phaneuf * Robert O'Callahan * Roy Yokoyama * Makoto Kato * Masayuki Nakano * Dainis Jonitis * Christian Biesinger * Mats Palmgren * Ningjie Chen * Jim Mathies * Kyle Huey * * 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 ***** */ /* * nsWindow - Native window management and event handling. * * nsWindow is organized into a set of major blocks and * block subsections. The layout is as follows: * * Includes * Variables * nsIWidget impl. * nsIWidget methods and utilities * nsSwitchToUIThread impl. * nsSwitchToUIThread methods and utilities * Moz events * Event initialization * Event dispatching * Native events * Wndproc(s) * Event processing * OnEvent event handlers * IME management and accessibility * Transparency * Popup hook handling * Misc. utilities * Child window impl. * * Search for "BLOCK:" to find major blocks. * Search for "SECTION:" to find specific sections. * * Blocks should be split out into separate files if they * become unmanageable. * * Related source: * * nsWindowDefs.h - Definitions, macros, structs, enums * and general setup. * nsWindowDbg.h/.cpp - Debug related code and directives. * nsWindowGfx.h/.cpp - Graphics and painting. * */ /************************************************************** ************************************************************** ** ** BLOCK: Includes ** ** Include headers. ** ************************************************************** **************************************************************/ #include "mozilla/ipc/RPCChannel.h" /* This must occur *after* ipc/RPCChannel.h to avoid typedefs conflicts. */ #include "mozilla/Util.h" #include "nsWindow.h" #include #include #include #include #include "prlog.h" #include "prtime.h" #include "prprf.h" #include "prmem.h" #include "mozilla/WidgetTraceEvent.h" #include "nsIAppShell.h" #include "nsISupportsPrimitives.h" #include "nsIDOMMouseEvent.h" #include "nsITheme.h" #include "nsIObserverService.h" #include "nsIScreenManager.h" #include "imgIContainer.h" #include "nsIFile.h" #include "nsIRollupListener.h" #include "nsIServiceManager.h" #include "nsIClipboard.h" #include "nsIMM32Handler.h" #include "nsILocalFile.h" #include "nsFontMetrics.h" #include "nsIFontEnumerator.h" #include "nsGUIEvent.h" #include "nsFont.h" #include "nsRect.h" #include "nsThreadUtils.h" #include "nsNativeCharsetUtils.h" #include "nsGkAtoms.h" #include "nsUnicharUtils.h" #include "nsCRT.h" #include "nsAppDirectoryServiceDefs.h" #include "nsXPIDLString.h" #include "nsWidgetsCID.h" #include "nsTHashtable.h" #include "nsHashKeys.h" #include "nsString.h" #include "mozilla/Services.h" #include "nsNativeThemeWin.h" #include "nsWindowsDllInterceptor.h" #include "nsIWindowMediator.h" #include "nsIServiceManager.h" #include "nsWindowGfx.h" #include "gfxWindowsPlatform.h" #include "Layers.h" #include "nsPrintfCString.h" #include "mozilla/Preferences.h" #include "nsISound.h" #include "WinTaskbar.h" #ifdef MOZ_ENABLE_D3D9_LAYER #include "LayerManagerD3D9.h" #endif #ifdef MOZ_ENABLE_D3D10_LAYER #include "LayerManagerD3D10.h" #endif #include "LayerManagerOGL.h" #include "nsIGfxInfo.h" #include "BasicLayers.h" #include "nsUXThemeConstants.h" #include "KeyboardLayout.h" #include "nsNativeDragTarget.h" #include // needed for WIN32_LEAN_AND_MEAN #include #include #if defined(ACCESSIBILITY) #include "oleidl.h" #include #include "nsIAccessibleDocument.h" #if !defined(WINABLEAPI) #include #endif // !defined(WINABLEAPI) #endif // defined(ACCESSIBILITY) #include "nsIWinTaskbar.h" #define NS_TASKBAR_CONTRACTID "@mozilla.org/windows-taskbar;1" #if defined(NS_ENABLE_TSF) #include "nsTextStore.h" #endif // defined(NS_ENABLE_TSF) // Windowless plugin support #include "npapi.h" #include "nsWindowDefs.h" #include "mozilla/FunctionTimer.h" #include "nsCrashOnException.h" #include "nsIXULRuntime.h" #include "nsIContent.h" using namespace mozilla::widget; using namespace mozilla::layers; using namespace mozilla; /************************************************************** ************************************************************** ** ** BLOCK: Variables ** ** nsWindow Class static initializations and global variables. ** ************************************************************** **************************************************************/ /************************************************************** * * SECTION: nsWindow statics * **************************************************************/ bool nsWindow::sDropShadowEnabled = true; PRUint32 nsWindow::sInstanceCount = 0; bool nsWindow::sSwitchKeyboardLayout = false; BOOL nsWindow::sIsOleInitialized = FALSE; HCURSOR nsWindow::sHCursor = NULL; imgIContainer* nsWindow::sCursorImgContainer = nsnull; nsWindow* nsWindow::sCurrentWindow = nsnull; bool nsWindow::sJustGotDeactivate = false; bool nsWindow::sJustGotActivate = false; bool nsWindow::sIsInMouseCapture = false; // imported in nsWidgetFactory.cpp TriStateBool nsWindow::sCanQuit = TRI_UNKNOWN; // Hook Data Memebers for Dropdowns. sProcessHook Tells the // hook methods whether they should be processing the hook // messages. HHOOK nsWindow::sMsgFilterHook = NULL; HHOOK nsWindow::sCallProcHook = NULL; HHOOK nsWindow::sCallMouseHook = NULL; bool nsWindow::sProcessHook = false; UINT nsWindow::sRollupMsgId = 0; HWND nsWindow::sRollupMsgWnd = NULL; UINT nsWindow::sHookTimerId = 0; // Rollup Listener nsIRollupListener* nsWindow::sRollupListener = nsnull; nsIWidget* nsWindow::sRollupWidget = nsnull; bool nsWindow::sRollupConsumeEvent = false; // Mouse Clicks - static variable definitions for figuring // out 1 - 3 Clicks. POINT nsWindow::sLastMousePoint = {0}; POINT nsWindow::sLastMouseMovePoint = {0}; LONG nsWindow::sLastMouseDownTime = 0L; LONG nsWindow::sLastClickCount = 0L; BYTE nsWindow::sLastMouseButton = 0; // Trim heap on minimize. (initialized, but still true.) int nsWindow::sTrimOnMinimize = 2; // Default value for Trackpoint hack (used when the pref is set to -1). bool nsWindow::sDefaultTrackPointHack = false; // Default value for general window class (used when the pref is the empty string). const char* nsWindow::sDefaultMainWindowClass = kClassNameGeneral; // Whether to enable the Elantech swipe gesture hack. bool nsWindow::sUseElantechSwipeHack = false; // Whether to enable the Elantech pinch-to-zoom gesture hack. bool nsWindow::sUseElantechPinchHack = false; // If we're using D3D9, this will not be allowed during initial 5 seconds. bool nsWindow::sAllowD3D9 = false; TriStateBool nsWindow::sHasBogusPopupsDropShadowOnMultiMonitor = TRI_UNKNOWN; #ifdef ACCESSIBILITY BOOL nsWindow::sIsAccessibilityOn = FALSE; // Accessibility wm_getobject handler HINSTANCE nsWindow::sAccLib = 0; LPFNLRESULTFROMOBJECT nsWindow::sLresultFromObject = 0; #endif // ACCESSIBILITY // Used in OOPP plugin focus processing. const PRUnichar* kOOPPPluginFocusEventId = L"OOPP Plugin Focus Widget Event"; PRUint32 nsWindow::sOOPPPluginFocusEvent = RegisterWindowMessageW(kOOPPPluginFocusEventId); MSG nsWindow::sRedirectedKeyDown; bool nsWindow::sEnablePixelScrolling = true; bool nsWindow::sNeedsToInitMouseWheelSettings = true; ULONG nsWindow::sMouseWheelScrollLines = 0; ULONG nsWindow::sMouseWheelScrollChars = 0; HWND nsWindow::sLastMouseWheelWnd = NULL; PRInt32 nsWindow::sRemainingDeltaForScroll = 0; PRInt32 nsWindow::sRemainingDeltaForPixel = 0; bool nsWindow::sLastMouseWheelDeltaIsPositive = false; bool nsWindow::sLastMouseWheelOrientationIsVertical = false; bool nsWindow::sLastMouseWheelUnitIsPage = false; PRUint32 nsWindow::sLastMouseWheelTime = 0; /************************************************************** * * SECTION: globals variables * **************************************************************/ static const char *sScreenManagerContractID = "@mozilla.org/gfx/screenmanager;1"; #ifdef PR_LOGGING PRLogModuleInfo* gWindowsLog = nsnull; #endif // Kbd layout. Used throughout character processing. static KeyboardLayout gKbdLayout; // Global user preference for disabling native theme. Used // in NativeWindowTheme. bool gDisableNativeTheme = false; // Global used in Show window enumerations. static bool gWindowsVisible = false; // True if we have sent a notification that we are suspending/sleeping. static bool gIsSleepMode = false; static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID); // General purpose user32.dll hook object static WindowsDllInterceptor sUser32Intercept; // 2 pixel offset for eTransparencyBorderlessGlass which equals // the size of the default window border Windows paints. static const PRInt32 kGlassMarginAdjustment = 2; // We should never really try to accelerate windows bigger than this. In some // cases this might lead to no D3D9 acceleration where we could have had it // but D3D9 does not reliably report when it supports bigger windows. 8192 // is as safe as we can get, we know at least D3D10 hardware always supports // this, other hardware we expect to report correctly in D3D9. #define MAX_ACCELERATED_DIMENSION 8192 /************************************************************** ************************************************************** ** ** BLOCK: nsIWidget impl. ** ** nsIWidget interface implementation, broken down into ** sections. ** ************************************************************** **************************************************************/ /************************************************************** * * SECTION: nsWindow construction and destruction * **************************************************************/ nsWindow::nsWindow() : nsBaseWidget() { #ifdef PR_LOGGING if (!gWindowsLog) { gWindowsLog = PR_NewLogModule("nsWindow"); } #endif mWnd = nsnull; mPaintDC = nsnull; mPrevWndProc = nsnull; mNativeDragTarget = nsnull; mInDtor = false; mIsVisible = false; mIsTopWidgetWindow = false; mUnicodeWidget = true; mDisplayPanFeedback = false; mTouchWindow = false; mCustomNonClient = false; mHideChrome = false; mFullscreenMode = false; mMousePresent = false; mDestroyCalled = false; mPickerDisplayCount = 0; mWindowType = eWindowType_child; mBorderStyle = eBorderStyle_default; mPopupType = ePopupTypeAny; mOldSizeMode = nsSizeMode_Normal; mLastPoint.x = 0; mLastPoint.y = 0; mLastSize.width = 0; mLastSize.height = 0; mOldStyle = 0; mOldExStyle = 0; mPainting = 0; mLastKeyboardLayout = 0; mAssumeWheelIsZoomUntil = 0; mBlurSuppressLevel = 0; #ifdef MOZ_XUL mTransparentSurface = nsnull; mMemoryDC = nsnull; mTransparencyMode = eTransparencyOpaque; #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN memset(&mGlassMargins, 0, sizeof mGlassMargins); #endif // #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN #endif mBackground = ::GetSysColor(COLOR_BTNFACE); mBrush = ::CreateSolidBrush(NSRGB_2_COLOREF(mBackground)); mForeground = ::GetSysColor(COLOR_WINDOWTEXT); #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7 mTaskbarPreview = nsnull; mHasTaskbarIconBeenCreated = false; #endif // Global initialization if (!sInstanceCount) { #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7 // Global app registration id for Win7 and up. See // WinTaskbar.cpp for details. mozilla::widget::WinTaskbar::RegisterAppUserModelID(); #endif gKbdLayout.LoadLayout(::GetKeyboardLayout(0)); // Init IME handler nsIMM32Handler::Initialize(); #ifdef NS_ENABLE_TSF nsTextStore::Initialize(); #endif if (SUCCEEDED(::OleInitialize(NULL))) sIsOleInitialized = TRUE; NS_ASSERTION(sIsOleInitialized, "***** OLE is not initialized!\n"); InitInputWorkaroundPrefDefaults(); // Init titlebar button info for custom frames. nsUXThemeData::InitTitlebarInfo(); // Init theme data nsUXThemeData::UpdateNativeThemeInfo(); ForgetRedirectedKeyDownMessage(); } // !sInstanceCount mIdleService = nsnull; sInstanceCount++; } nsWindow::~nsWindow() { mInDtor = true; // If the widget was released without calling Destroy() then the native window still // exists, and we need to destroy it. This will also result in a call to OnDestroy. // // XXX How could this happen??? if (NULL != mWnd) Destroy(); sInstanceCount--; // Global shutdown if (sInstanceCount == 0) { #ifdef NS_ENABLE_TSF nsTextStore::Terminate(); #endif NS_IF_RELEASE(sCursorImgContainer); if (sIsOleInitialized) { ::OleFlushClipboard(); ::OleUninitialize(); sIsOleInitialized = FALSE; } // delete any of the IME structures that we allocated nsIMM32Handler::Terminate(); } NS_IF_RELEASE(mNativeDragTarget); } NS_IMPL_ISUPPORTS_INHERITED0(nsWindow, nsBaseWidget) /************************************************************** * * SECTION: nsIWidget::Create, nsIWidget::Destroy * * Creating and destroying windows for this widget. * **************************************************************/ // Allow Derived classes to modify the height that is passed // when the window is created or resized. PRInt32 nsWindow::GetHeight(PRInt32 aProposedHeight) { return aProposedHeight; } // Create the proper widget nsresult nsWindow::Create(nsIWidget *aParent, nsNativeWidget aNativeParent, const nsIntRect &aRect, EVENT_CALLBACK aHandleEventFunction, nsDeviceContext *aContext, nsWidgetInitData *aInitData) { nsWidgetInitData defaultInitData; if (!aInitData) aInitData = &defaultInitData; mUnicodeWidget = aInitData->mUnicode; nsIWidget *baseParent = aInitData->mWindowType == eWindowType_dialog || aInitData->mWindowType == eWindowType_toplevel || aInitData->mWindowType == eWindowType_invisible ? nsnull : aParent; mIsTopWidgetWindow = (nsnull == baseParent); mBounds = aRect; // Ensure that the toolkit is created. nsToolkit::GetToolkit(); BaseCreate(baseParent, aRect, aHandleEventFunction, aContext, aInitData); HWND parent; if (aParent) { // has a nsIWidget parent parent = aParent ? (HWND)aParent->GetNativeData(NS_NATIVE_WINDOW) : NULL; mParent = aParent; } else { // has a nsNative parent parent = (HWND)aNativeParent; mParent = aNativeParent ? GetNSWindowPtr((HWND)aNativeParent) : nsnull; } mPopupType = aInitData->mPopupHint; mIsRTL = aInitData->mRTL; DWORD style = WindowStyle(); DWORD extendedStyle = WindowExStyle(); if (mWindowType == eWindowType_popup) { if (!aParent) parent = NULL; if (aInitData->mIsDragPopup) { // This flag makes the window transparent to mouse events extendedStyle |= WS_EX_TRANSPARENT; } } else if (mWindowType == eWindowType_invisible) { // Make sure CreateWindowEx succeeds at creating a toplevel window style &= ~0x40000000; // WS_CHILDWINDOW } else { // See if the caller wants to explictly set clip children and clip siblings if (aInitData->clipChildren) { style |= WS_CLIPCHILDREN; } else { style &= ~WS_CLIPCHILDREN; } if (aInitData->clipSiblings) { style |= WS_CLIPSIBLINGS; } } nsAutoString className; if (aInitData->mDropShadow) { GetWindowPopupClass(className); } else { GetWindowClass(className); } // Plugins are created in the disabled state so that they can't // steal focus away from our main window. This is especially // important if the plugin has loaded in a background tab. if(aInitData->mWindowType == eWindowType_plugin) { style |= WS_DISABLED; } mWnd = ::CreateWindowExW(extendedStyle, className.get(), L"", style, aRect.x, aRect.y, aRect.width, GetHeight(aRect.height), parent, NULL, nsToolkit::mDllInstance, NULL); if (!mWnd) { NS_WARNING("nsWindow CreateWindowEx failed."); return NS_ERROR_FAILURE; } #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN if (mIsRTL && nsUXThemeData::dwmSetWindowAttributePtr) { DWORD dwAttribute = TRUE; nsUXThemeData::dwmSetWindowAttributePtr(mWnd, DWMWA_NONCLIENT_RTL_LAYOUT, &dwAttribute, sizeof dwAttribute); } #endif if (mWindowType != eWindowType_plugin && mWindowType != eWindowType_invisible && UseTrackPointHack()) { // Ugly Thinkpad Driver Hack (Bugs 507222 and 594977) // // We create two zero-sized windows as descendants of the top-level window, // like so: // // Top-level window (MozillaWindowClass) // FAKETRACKPOINTSCROLLCONTAINER (MozillaWindowClass) // FAKETRACKPOINTSCROLLABLE (MozillaWindowClass) // // We need to have the middle window, otherwise the Trackpoint driver // will fail to deliver scroll messages. WM_MOUSEWHEEL messages are // sent to the FAKETRACKPOINTSCROLLABLE, which then propagate up the // window hierarchy until they are handled by nsWindow::WindowProc. // WM_HSCROLL messages are also sent to the FAKETRACKPOINTSCROLLABLE, // but these do not propagate automatically, so we have the window // procedure pretend that they were dispatched to the top-level window // instead. // // The FAKETRACKPOINTSCROLLABLE needs to have the specific window styles it // is given below so that it catches the Trackpoint driver's heuristics. HWND scrollContainerWnd = ::CreateWindowW (className.get(), L"FAKETRACKPOINTSCROLLCONTAINER", WS_CHILD | WS_VISIBLE, 0, 0, 0, 0, mWnd, NULL, nsToolkit::mDllInstance, NULL); HWND scrollableWnd = ::CreateWindowW (className.get(), L"FAKETRACKPOINTSCROLLABLE", WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_TABSTOP | 0x30, 0, 0, 0, 0, scrollContainerWnd, NULL, nsToolkit::mDllInstance, NULL); // Give the FAKETRACKPOINTSCROLLABLE window a specific ID so that // WindowProcInternal can distinguish it from the top-level window // easily. ::SetWindowLongPtrW(scrollableWnd, GWLP_ID, eFakeTrackPointScrollableID); // Make FAKETRACKPOINTSCROLLABLE use nsWindow::WindowProc, and store the // old window procedure in its "user data". WNDPROC oldWndProc; if (mUnicodeWidget) oldWndProc = (WNDPROC)::SetWindowLongPtrW(scrollableWnd, GWLP_WNDPROC, (LONG_PTR)nsWindow::WindowProc); else oldWndProc = (WNDPROC)::SetWindowLongPtrA(scrollableWnd, GWLP_WNDPROC, (LONG_PTR)nsWindow::WindowProc); ::SetWindowLongPtrW(scrollableWnd, GWLP_USERDATA, (LONG_PTR)oldWndProc); } // call the event callback to notify about creation DispatchStandardEvent(NS_CREATE); SubclassWindow(TRUE); // If the internal variable set by the config.trim_on_minimize pref has not // been initialized, and if this is the hidden window (conveniently created // before any visible windows, and after the profile has been initialized), // do some initialization work. if (sTrimOnMinimize == 2 && mWindowType == eWindowType_invisible) { // Our internal trim prevention logic is effective on 2K/XP at maintaining // the working set when windows are minimized, but on Vista and up it has // little to no effect. Since this feature has been the source of numerous // bugs over the years, disable it (sTrimOnMinimize=1) on Vista and up. sTrimOnMinimize = Preferences::GetBool("config.trim_on_minimize", (GetWindowsVersion() >= VISTA_VERSION)) ? 1 : 0; sSwitchKeyboardLayout = Preferences::GetBool("intl.keyboard.per_window_layout", false); gDisableNativeTheme = Preferences::GetBool("mozilla.widget.disable-native-theme", false); } return NS_OK; } // Close this nsWindow NS_METHOD nsWindow::Destroy() { // WM_DESTROY has already fired, avoid calling it twice if (mOnDestroyCalled) return NS_OK; // Don't destroy windows that have file pickers open, we'll tear these down // later once the picker is closed. mDestroyCalled = true; if (mPickerDisplayCount) return NS_OK; // During the destruction of all of our children, make sure we don't get deleted. nsCOMPtr kungFuDeathGrip(this); /** * On windows the LayerManagerOGL destructor wants the widget to be around for * cleanup. It also would like to have the HWND intact, so we NULL it here. */ if (mLayerManager) { mLayerManager->Destroy(); } mLayerManager = nsnull; /* We should clear our cached resources now and not wait for the GC to * delete the nsWindow. */ ClearCachedResources(); // The DestroyWindow function destroys the specified window. The function sends WM_DESTROY // and WM_NCDESTROY messages to the window to deactivate it and remove the keyboard focus // from it. The function also destroys the window's menu, flushes the thread message queue, // destroys timers, removes clipboard ownership, and breaks the clipboard viewer chain (if // the window is at the top of the viewer chain). // // If the specified window is a parent or owner window, DestroyWindow automatically destroys // the associated child or owned windows when it destroys the parent or owner window. The // function first destroys child or owned windows, and then it destroys the parent or owner // window. VERIFY(::DestroyWindow(mWnd)); // Our windows can be subclassed which may prevent us receiving WM_DESTROY. If OnDestroy() // didn't get called, call it now. if (false == mOnDestroyCalled) { LRESULT result; mWindowHook.Notify(mWnd, WM_DESTROY, 0, 0, &result); OnDestroy(); } return NS_OK; } /************************************************************** * * SECTION: Window class utilities * * Utilities for calculating the proper window class name for * Create window. * **************************************************************/ void nsWindow::RegisterWindowClass(const nsString& aClassName, UINT aExtraStyle, LPWSTR aIconID) { WNDCLASSW wc; if (::GetClassInfoW(nsToolkit::mDllInstance, aClassName.get(), &wc)) { // already registered return; } wc.style = CS_DBLCLKS | aExtraStyle; wc.lpfnWndProc = ::DefWindowProcW; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = nsToolkit::mDllInstance; wc.hIcon = aIconID ? ::LoadIconW(::GetModuleHandleW(NULL), aIconID) : NULL; wc.hCursor = NULL; wc.hbrBackground = mBrush; wc.lpszMenuName = NULL; wc.lpszClassName = aClassName.get(); if (!::RegisterClassW(&wc)) { // For older versions of Win32 (i.e., not XP), the registration may // fail with aExtraStyle, so we have to re-register without it. wc.style = CS_DBLCLKS; ::RegisterClassW(&wc); } } static LPWSTR const gStockApplicationIcon = MAKEINTRESOURCEW(32512); // Return the proper window class for everything except popups. void nsWindow::GetWindowClass(nsString& aWindowClass) { switch (mWindowType) { case eWindowType_invisible: aWindowClass.AssignLiteral(kClassNameHidden); RegisterWindowClass(aWindowClass, 0, gStockApplicationIcon); break; case eWindowType_dialog: aWindowClass.AssignLiteral(kClassNameDialog); RegisterWindowClass(aWindowClass, 0, 0); break; default: GetMainWindowClass(aWindowClass); RegisterWindowClass(aWindowClass, 0, gStockApplicationIcon); break; } } // Return the proper popup window class void nsWindow::GetWindowPopupClass(nsString& aWindowClass) { aWindowClass.AssignLiteral(kClassNameDropShadow); RegisterWindowClass(aWindowClass, CS_XP_DROPSHADOW, gStockApplicationIcon); } /************************************************************** * * SECTION: Window styles utilities * * Return the proper windows styles and extended styles. * **************************************************************/ // Return nsWindow styles DWORD nsWindow::WindowStyle() { DWORD style; switch (mWindowType) { case eWindowType_plugin: case eWindowType_child: style = WS_OVERLAPPED; break; case eWindowType_dialog: style = WS_OVERLAPPED | WS_BORDER | WS_DLGFRAME | WS_SYSMENU | DS_3DLOOK | DS_MODALFRAME | WS_CLIPCHILDREN; if (mBorderStyle != eBorderStyle_default) style |= WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX; break; case eWindowType_popup: style = WS_POPUP; if (!HasGlass()) { style |= WS_OVERLAPPED; } break; default: NS_ERROR("unknown border style"); // fall through case eWindowType_toplevel: case eWindowType_invisible: style = WS_OVERLAPPED | WS_BORDER | WS_DLGFRAME | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_CLIPCHILDREN; break; } if (mBorderStyle != eBorderStyle_default && mBorderStyle != eBorderStyle_all) { if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_border)) style &= ~WS_BORDER; if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_title)) { style &= ~WS_DLGFRAME; style |= WS_POPUP; style &= ~WS_CHILD; } if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_close)) style &= ~0; // XXX The close box can only be removed by changing the window class, // as far as I know --- roc+moz@cs.cmu.edu if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & (eBorderStyle_menu | eBorderStyle_close))) style &= ~WS_SYSMENU; // Looks like getting rid of the system menu also does away with the // close box. So, we only get rid of the system menu if you want neither it // nor the close box. How does the Windows "Dialog" window class get just // closebox and no sysmenu? Who knows. if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_resizeh)) style &= ~WS_THICKFRAME; if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_minimize)) style &= ~WS_MINIMIZEBOX; if (mBorderStyle == eBorderStyle_none || !(mBorderStyle & eBorderStyle_maximize)) style &= ~WS_MAXIMIZEBOX; if (IsPopupWithTitleBar()) { style |= WS_CAPTION; if (mBorderStyle & eBorderStyle_close) { style |= WS_SYSMENU; } } } VERIFY_WINDOW_STYLE(style); return style; } // Return nsWindow extended styles DWORD nsWindow::WindowExStyle() { switch (mWindowType) { case eWindowType_plugin: case eWindowType_child: return 0; case eWindowType_dialog: return WS_EX_WINDOWEDGE | WS_EX_DLGMODALFRAME; case eWindowType_popup: { DWORD extendedStyle = WS_EX_TOOLWINDOW; if (mPopupLevel == ePopupLevelTop) extendedStyle |= WS_EX_TOPMOST; return extendedStyle; } default: NS_ERROR("unknown border style"); // fall through case eWindowType_toplevel: case eWindowType_invisible: return WS_EX_WINDOWEDGE; } } /************************************************************** * * SECTION: Window subclassing utilities * * Set or clear window subclasses on native windows. Used in * Create and Destroy. * **************************************************************/ // Subclass (or remove the subclass from) this component's nsWindow void nsWindow::SubclassWindow(BOOL bState) { if (NULL != mWnd) { //NS_PRECONDITION(::IsWindow(mWnd), "Invalid window handle"); if (!::IsWindow(mWnd)) { NS_ERROR("Invalid window handle"); } if (bState) { // change the nsWindow proc if (mUnicodeWidget) mPrevWndProc = (WNDPROC)::SetWindowLongPtrW(mWnd, GWLP_WNDPROC, (LONG_PTR)nsWindow::WindowProc); else mPrevWndProc = (WNDPROC)::SetWindowLongPtrA(mWnd, GWLP_WNDPROC, (LONG_PTR)nsWindow::WindowProc); NS_ASSERTION(mPrevWndProc, "Null standard window procedure"); // connect the this pointer to the nsWindow handle SetNSWindowPtr(mWnd, this); } else { if (mUnicodeWidget) ::SetWindowLongPtrW(mWnd, GWLP_WNDPROC, (LONG_PTR)mPrevWndProc); else ::SetWindowLongPtrA(mWnd, GWLP_WNDPROC, (LONG_PTR)mPrevWndProc); SetNSWindowPtr(mWnd, NULL); mPrevWndProc = NULL; } } } /************************************************************** * * SECTION: Window properties * * Set and clear native window properties. * **************************************************************/ static PRUnichar sPropName[40] = L""; static PRUnichar* GetNSWindowPropName() { if (!*sPropName) { _snwprintf(sPropName, 39, L"MozillansIWidgetPtr%p", GetCurrentProcessId()); sPropName[39] = '\0'; } return sPropName; } nsWindow * nsWindow::GetNSWindowPtr(HWND aWnd) { return (nsWindow *) ::GetPropW(aWnd, GetNSWindowPropName()); } BOOL nsWindow::SetNSWindowPtr(HWND aWnd, nsWindow * ptr) { if (ptr == NULL) { ::RemovePropW(aWnd, GetNSWindowPropName()); return TRUE; } else { return ::SetPropW(aWnd, GetNSWindowPropName(), (HANDLE)ptr); } } static BOOL CALLBACK AddMonitor(HMONITOR, HDC, LPRECT, LPARAM aParam) { (*(PRInt32*)aParam)++; return TRUE; } PRInt32 nsWindow::GetMonitorCount() { PRInt32 monitorCount = 0; EnumDisplayMonitors(NULL, NULL, AddMonitor, (LPARAM)&monitorCount); return monitorCount; } /************************************************************** * * SECTION: nsIWidget::SetParent, nsIWidget::GetParent * * Set or clear the parent widgets using window properties, and * handles calculating native parent handles. * **************************************************************/ // Get and set parent widgets NS_IMETHODIMP nsWindow::SetParent(nsIWidget *aNewParent) { mParent = aNewParent; nsCOMPtr kungFuDeathGrip(this); nsIWidget* parent = GetParent(); if (parent) { parent->RemoveChild(this); } if (aNewParent) { ReparentNativeWidget(aNewParent); aNewParent->AddChild(this); return NS_OK; } if (mWnd) { // If we have no parent, SetParent should return the desktop. VERIFY(::SetParent(mWnd, nsnull)); } return NS_OK; } NS_IMETHODIMP nsWindow::ReparentNativeWidget(nsIWidget* aNewParent) { NS_PRECONDITION(aNewParent, ""); mParent = aNewParent; if (mWindowType == eWindowType_popup) { return NS_OK; } HWND newParent = (HWND)aNewParent->GetNativeData(NS_NATIVE_WINDOW); NS_ASSERTION(newParent, "Parent widget has a null native window handle"); if (newParent && mWnd) { ::SetParent(mWnd, newParent); } return NS_OK; } nsIWidget* nsWindow::GetParent(void) { return GetParentWindow(false); } float nsWindow::GetDPI() { HDC dc = ::GetDC(mWnd); if (!dc) return 96.0f; double heightInches = ::GetDeviceCaps(dc, VERTSIZE)/MM_PER_INCH_FLOAT; int heightPx = ::GetDeviceCaps(dc, VERTRES); ::ReleaseDC(mWnd, dc); if (heightInches < 0.25) { // Something's broken return 96.0f; } return float(heightPx/heightInches); } nsWindow* nsWindow::GetParentWindow(bool aIncludeOwner) { if (mIsTopWidgetWindow) { // Must use a flag instead of mWindowType to tell if the window is the // owned by the topmost widget, because a child window can be embedded inside // a HWND which is not associated with a nsIWidget. return nsnull; } // If this widget has already been destroyed, pretend we have no parent. // This corresponds to code in Destroy which removes the destroyed // widget from its parent's child list. if (mInDtor || mOnDestroyCalled) return nsnull; // aIncludeOwner set to true implies walking the parent chain to retrieve the // root owner. aIncludeOwner set to false implies the search will stop at the // true parent (default). nsWindow* widget = nsnull; if (mWnd) { HWND parent = nsnull; if (aIncludeOwner) parent = ::GetParent(mWnd); else parent = ::GetAncestor(mWnd, GA_PARENT); if (parent) { widget = GetNSWindowPtr(parent); if (widget) { // If the widget is in the process of being destroyed then // do NOT return it if (widget->mInDtor) { widget = nsnull; } } } } return widget; } BOOL CALLBACK nsWindow::EnumAllChildWindProc(HWND aWnd, LPARAM aParam) { nsWindow *wnd = nsWindow::GetNSWindowPtr(aWnd); if (wnd) { ((nsWindow::WindowEnumCallback*)aParam)(wnd); } return TRUE; } BOOL CALLBACK nsWindow::EnumAllThreadWindowProc(HWND aWnd, LPARAM aParam) { nsWindow *wnd = nsWindow::GetNSWindowPtr(aWnd); if (wnd) { ((nsWindow::WindowEnumCallback*)aParam)(wnd); } EnumChildWindows(aWnd, EnumAllChildWindProc, aParam); return TRUE; } void nsWindow::EnumAllWindows(WindowEnumCallback aCallback) { EnumThreadWindows(GetCurrentThreadId(), EnumAllThreadWindowProc, (LPARAM)aCallback); } /************************************************************** * * SECTION: nsIWidget::Show * * Hide or show this component. * **************************************************************/ NS_METHOD nsWindow::Show(bool bState) { if (mWindowType == eWindowType_popup) { // See bug 603793. When we try to draw D3D9/10 windows with a drop shadow // without the DWM on a secondary monitor, windows fails to composite // our windows correctly. We therefor switch off the drop shadow for // pop-up windows when the DWM is disabled and two monitors are // connected. if (HasBogusPopupsDropShadowOnMultiMonitor() && GetMonitorCount() > 1 && !nsUXThemeData::CheckForCompositor()) { if (sDropShadowEnabled) { ::SetClassLongA(mWnd, GCL_STYLE, 0); sDropShadowEnabled = false; } } else { if (!sDropShadowEnabled) { ::SetClassLongA(mWnd, GCL_STYLE, CS_DROPSHADOW); sDropShadowEnabled = true; } } } #ifdef NS_FUNCTION_TIMER static bool firstShow = true; if (firstShow && (mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog || mWindowType == eWindowType_popup)) { firstShow = false; mozilla::FunctionTimer::LogMessage("@ First toplevel/dialog/popup showing"); } #endif bool syncInvalidate = false; bool wasVisible = mIsVisible; // Set the status now so that anyone asking during ShowWindow or // SetWindowPos would get the correct answer. mIsVisible = bState; // We may have cached an out of date visible state. This can happen // when session restore sets the full screen mode. if (mIsVisible) mOldStyle |= WS_VISIBLE; else mOldStyle &= ~WS_VISIBLE; if (!mIsVisible && wasVisible) { ClearCachedResources(); } if (mWnd) { if (bState) { if (!wasVisible && mWindowType == eWindowType_toplevel) { // speed up the initial paint after show for // top level windows: syncInvalidate = true; switch (mSizeMode) { case nsSizeMode_Fullscreen: ::ShowWindow(mWnd, SW_SHOW); break; case nsSizeMode_Maximized : ::ShowWindow(mWnd, SW_SHOWMAXIMIZED); break; case nsSizeMode_Minimized : ::ShowWindow(mWnd, SW_SHOWMINIMIZED); break; default: if (CanTakeFocus()) { ::ShowWindow(mWnd, SW_SHOWNORMAL); } else { // Place the window behind the foreground window // (as long as it is not topmost) HWND wndAfter = ::GetForegroundWindow(); if (!wndAfter) wndAfter = HWND_BOTTOM; else if (GetWindowLongPtrW(wndAfter, GWL_EXSTYLE) & WS_EX_TOPMOST) wndAfter = HWND_TOP; ::SetWindowPos(mWnd, wndAfter, 0, 0, 0, 0, SWP_SHOWWINDOW | SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE); GetAttention(2); } break; } } else { DWORD flags = SWP_NOSIZE | SWP_NOMOVE | SWP_SHOWWINDOW; if (wasVisible) flags |= SWP_NOZORDER; if (mWindowType == eWindowType_popup) { // ensure popups are the topmost of the TOPMOST // layer. Remember not to set the SWP_NOZORDER // flag as that might allow the taskbar to overlap // the popup. flags |= SWP_NOACTIVATE; HWND owner = ::GetWindow(mWnd, GW_OWNER); ::SetWindowPos(mWnd, owner ? 0 : HWND_TOPMOST, 0, 0, 0, 0, flags); } else { if (mWindowType == eWindowType_dialog && !CanTakeFocus()) flags |= SWP_NOACTIVATE; ::SetWindowPos(mWnd, HWND_TOP, 0, 0, 0, 0, flags); } } if (!wasVisible && (mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog)) { // when a toplevel window or dialog is shown, initialize the UI state ::SendMessageW(mWnd, WM_CHANGEUISTATE, MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL), 0); } } else { if (mWindowType != eWindowType_dialog) { ::ShowWindow(mWnd, SW_HIDE); } else { ::SetWindowPos(mWnd, 0, 0, 0, 0, 0, SWP_HIDEWINDOW | SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE); } } } #ifdef MOZ_XUL if (!wasVisible && bState) Invalidate(syncInvalidate); #endif return NS_OK; } /************************************************************** * * SECTION: nsIWidget::IsVisible * * Returns the visibility state. * **************************************************************/ // Return true if the whether the component is visible, false otherwise NS_METHOD nsWindow::IsVisible(bool & bState) { bState = mIsVisible; return NS_OK; } /************************************************************** * * SECTION: Window clipping utilities * * Used in Size and Move operations for setting the proper * window clipping regions for window transparency. * **************************************************************/ // XP and Vista visual styles sometimes require window clipping regions to be applied for proper // transparency. These routines are called on size and move operations. void nsWindow::ClearThemeRegion() { if (nsUXThemeData::sIsVistaOrLater && !HasGlass() && (mWindowType == eWindowType_popup && !IsPopupWithTitleBar() && (mPopupType == ePopupTypeTooltip || mPopupType == ePopupTypePanel))) { SetWindowRgn(mWnd, NULL, false); } } void nsWindow::SetThemeRegion() { // Popup types that have a visual styles region applied (bug 376408). This can be expanded // for other window types as needed. The regions are applied generically to the base window // so default constants are used for part and state. At some point we might need part and // state values from nsNativeThemeWin's GetThemePartAndState, but currently windows that // change shape based on state haven't come up. if (nsUXThemeData::sIsVistaOrLater && !HasGlass() && (mWindowType == eWindowType_popup && !IsPopupWithTitleBar() && (mPopupType == ePopupTypeTooltip || mPopupType == ePopupTypePanel))) { HRGN hRgn = nsnull; RECT rect = {0,0,mBounds.width,mBounds.height}; HDC dc = ::GetDC(mWnd); nsUXThemeData::getThemeBackgroundRegion(nsUXThemeData::GetTheme(eUXTooltip), dc, TTP_STANDARD, TS_NORMAL, &rect, &hRgn); if (hRgn) { if (!SetWindowRgn(mWnd, hRgn, false)) // do not delete or alter hRgn if accepted. DeleteObject(hRgn); } ::ReleaseDC(mWnd, dc); } } /************************************************************** * * SECTION: nsIWidget::RegisterTouchWindow, * nsIWidget::UnregisterTouchWindow, and helper functions * * Used to register the native window to receive touch events * **************************************************************/ NS_METHOD nsWindow::RegisterTouchWindow() { mTouchWindow = true; mGesture.RegisterTouchWindow(mWnd); ::EnumChildWindows(mWnd, nsWindow::RegisterTouchForDescendants, 0); return NS_OK; } NS_METHOD nsWindow::UnregisterTouchWindow() { mTouchWindow = false; mGesture.UnregisterTouchWindow(mWnd); ::EnumChildWindows(mWnd, nsWindow::UnregisterTouchForDescendants, 0); return NS_OK; } BOOL CALLBACK nsWindow::RegisterTouchForDescendants(HWND aWnd, LPARAM aMsg) { nsWindow* win = GetNSWindowPtr(aWnd); if (win) win->mGesture.RegisterTouchWindow(aWnd); return TRUE; } BOOL CALLBACK nsWindow::UnregisterTouchForDescendants(HWND aWnd, LPARAM aMsg) { nsWindow* win = GetNSWindowPtr(aWnd); if (win) win->mGesture.UnregisterTouchWindow(aWnd); return TRUE; } /************************************************************** * * SECTION: nsIWidget::Move, nsIWidget::Resize, * nsIWidget::Size, nsIWidget::BeginResizeDrag * * Repositioning and sizing a window. * **************************************************************/ // Move this component NS_METHOD nsWindow::Move(PRInt32 aX, PRInt32 aY) { if (mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog) { SetSizeMode(nsSizeMode_Normal); } // Check to see if window needs to be moved first // to avoid a costly call to SetWindowPos. This check // can not be moved to the calling code in nsView, because // some platforms do not position child windows correctly // Only perform this check for non-popup windows, since the positioning can // in fact change even when the x/y do not. We always need to perform the // check. See bug #97805 for details. if (mWindowType != eWindowType_popup && (mBounds.x == aX) && (mBounds.y == aY)) { // Nothing to do, since it is already positioned correctly. return NS_OK; } mBounds.x = aX; mBounds.y = aY; if (mWnd) { #ifdef DEBUG // complain if a window is moved offscreen (legal, but potentially worrisome) if (mIsTopWidgetWindow) { // only a problem for top-level windows // Make sure this window is actually on the screen before we move it // XXX: Needs multiple monitor support HDC dc = ::GetDC(mWnd); if (dc) { if (::GetDeviceCaps(dc, TECHNOLOGY) == DT_RASDISPLAY) { RECT workArea; ::SystemParametersInfo(SPI_GETWORKAREA, 0, &workArea, 0); // no annoying assertions. just mention the issue. if (aX < 0 || aX >= workArea.right || aY < 0 || aY >= workArea.bottom) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("window moved to offscreen position\n")); } } ::ReleaseDC(mWnd, dc); } } #endif ClearThemeRegion(); UINT flags = SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOSIZE; // Workaround SetWindowPos bug with D3D9. If our window has a clip // region, some drivers or OSes may incorrectly copy into the clipped-out // area. if (mWindowType == eWindowType_plugin && (!mLayerManager || mLayerManager->GetBackendType() == LayerManager::LAYERS_D3D9) && mClipRects && (mClipRectCount != 1 || !mClipRects[0].IsEqualInterior(nsIntRect(0, 0, mBounds.width, mBounds.height)))) { flags |= SWP_NOCOPYBITS; } VERIFY(::SetWindowPos(mWnd, NULL, aX, aY, 0, 0, flags)); SetThemeRegion(); } return NS_OK; } // Resize this component NS_METHOD nsWindow::Resize(PRInt32 aWidth, PRInt32 aHeight, bool aRepaint) { NS_ASSERTION((aWidth >=0 ) , "Negative width passed to nsWindow::Resize"); NS_ASSERTION((aHeight >=0 ), "Negative height passed to nsWindow::Resize"); // Avoid unnecessary resizing calls if (mBounds.width == aWidth && mBounds.height == aHeight && !aRepaint) return NS_OK; #ifdef MOZ_XUL if (eTransparencyTransparent == mTransparencyMode) ResizeTranslucentWindow(aWidth, aHeight); #endif // Set cached value for lightweight and printing mBounds.width = aWidth; mBounds.height = aHeight; if (mWnd) { UINT flags = SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE; if (!aRepaint) { flags |= SWP_NOREDRAW; } ClearThemeRegion(); VERIFY(::SetWindowPos(mWnd, NULL, 0, 0, aWidth, GetHeight(aHeight), flags)); SetThemeRegion(); } if (aRepaint) Invalidate(false); return NS_OK; } // Resize this component NS_METHOD nsWindow::Resize(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight, bool aRepaint) { NS_ASSERTION((aWidth >=0 ), "Negative width passed to nsWindow::Resize"); NS_ASSERTION((aHeight >=0 ), "Negative height passed to nsWindow::Resize"); // Avoid unnecessary resizing calls if (mBounds.x == aX && mBounds.y == aY && mBounds.width == aWidth && mBounds.height == aHeight && !aRepaint) return NS_OK; #ifdef MOZ_XUL if (eTransparencyTransparent == mTransparencyMode) ResizeTranslucentWindow(aWidth, aHeight); #endif // Set cached value for lightweight and printing mBounds.x = aX; mBounds.y = aY; mBounds.width = aWidth; mBounds.height = aHeight; if (mWnd) { UINT flags = SWP_NOZORDER | SWP_NOACTIVATE; if (!aRepaint) { flags |= SWP_NOREDRAW; } ClearThemeRegion(); VERIFY(::SetWindowPos(mWnd, NULL, aX, aY, aWidth, GetHeight(aHeight), flags)); SetThemeRegion(); } if (aRepaint) Invalidate(false); return NS_OK; } NS_IMETHODIMP nsWindow::BeginResizeDrag(nsGUIEvent* aEvent, PRInt32 aHorizontal, PRInt32 aVertical) { NS_ENSURE_ARG_POINTER(aEvent); if (aEvent->eventStructType != NS_MOUSE_EVENT) { // you can only begin a resize drag with a mouse event return NS_ERROR_INVALID_ARG; } nsMouseEvent* mouseEvent = static_cast(aEvent); if (mouseEvent->button != nsMouseEvent::eLeftButton) { // you can only begin a resize drag with the left mouse button return NS_ERROR_INVALID_ARG; } // work out what sizemode we're talking about WPARAM syscommand; if (aVertical < 0) { if (aHorizontal < 0) { syscommand = SC_SIZE | WMSZ_TOPLEFT; } else if (aHorizontal == 0) { syscommand = SC_SIZE | WMSZ_TOP; } else { syscommand = SC_SIZE | WMSZ_TOPRIGHT; } } else if (aVertical == 0) { if (aHorizontal < 0) { syscommand = SC_SIZE | WMSZ_LEFT; } else if (aHorizontal == 0) { return NS_ERROR_INVALID_ARG; } else { syscommand = SC_SIZE | WMSZ_RIGHT; } } else { if (aHorizontal < 0) { syscommand = SC_SIZE | WMSZ_BOTTOMLEFT; } else if (aHorizontal == 0) { syscommand = SC_SIZE | WMSZ_BOTTOM; } else { syscommand = SC_SIZE | WMSZ_BOTTOMRIGHT; } } // resizing doesn't work if the mouse is already captured CaptureMouse(false); // find the top-level window HWND toplevelWnd = GetTopLevelHWND(mWnd, true); // tell Windows to start the resize ::PostMessage(toplevelWnd, WM_SYSCOMMAND, syscommand, POINTTOPOINTS(aEvent->refPoint)); return NS_OK; } /************************************************************** * * SECTION: Window Z-order and state. * * nsIWidget::PlaceBehind, nsIWidget::SetSizeMode, * nsIWidget::ConstrainPosition * * Z-order, positioning, restore, minimize, and maximize. * **************************************************************/ // Position the window behind the given window NS_METHOD nsWindow::PlaceBehind(nsTopLevelWidgetZPlacement aPlacement, nsIWidget *aWidget, bool aActivate) { HWND behind = HWND_TOP; if (aPlacement == eZPlacementBottom) behind = HWND_BOTTOM; else if (aPlacement == eZPlacementBelow && aWidget) behind = (HWND)aWidget->GetNativeData(NS_NATIVE_WINDOW); UINT flags = SWP_NOMOVE | SWP_NOREPOSITION | SWP_NOSIZE; if (!aActivate) flags |= SWP_NOACTIVATE; if (!CanTakeFocus() && behind == HWND_TOP) { // Can't place the window to top so place it behind the foreground window // (as long as it is not topmost) HWND wndAfter = ::GetForegroundWindow(); if (!wndAfter) behind = HWND_BOTTOM; else if (!(GetWindowLongPtrW(wndAfter, GWL_EXSTYLE) & WS_EX_TOPMOST)) behind = wndAfter; flags |= SWP_NOACTIVATE; } ::SetWindowPos(mWnd, behind, 0, 0, 0, 0, flags); return NS_OK; } // Maximize, minimize or restore the window. NS_IMETHODIMP nsWindow::SetSizeMode(PRInt32 aMode) { nsresult rv; // Let's not try and do anything if we're already in that state. // (This is needed to prevent problems when calling window.minimize(), which // calls us directly, and then the OS triggers another call to us.) if (aMode == mSizeMode) return NS_OK; // save the requested state rv = nsBaseWidget::SetSizeMode(aMode); if (NS_SUCCEEDED(rv) && mIsVisible) { int mode; switch (aMode) { case nsSizeMode_Fullscreen : mode = SW_SHOW; break; case nsSizeMode_Maximized : mode = SW_MAXIMIZE; break; case nsSizeMode_Minimized : // Using SW_SHOWMINIMIZED prevents the working set from being trimmed but // keeps the window active in the tray. So after the window is minimized, // windows will fire WM_WINDOWPOSCHANGED (OnWindowPosChanged) at which point // we will do some additional processing to get the active window set right. // If sTrimOnMinimize is set, we let windows handle minimization normally // using SW_MINIMIZE. mode = sTrimOnMinimize ? SW_MINIMIZE : SW_SHOWMINIMIZED; break; default : mode = SW_RESTORE; } WINDOWPLACEMENT pl; pl.length = sizeof(pl); ::GetWindowPlacement(mWnd, &pl); // Don't call ::ShowWindow if we're trying to "restore" a window that is // already in a normal state. Prevents a bug where snapping to one side // of the screen and then minimizing would cause Windows to forget our // window's correct restored position/size. if( !(pl.showCmd == SW_SHOWNORMAL && mode == SW_RESTORE) ) { ::ShowWindow(mWnd, mode); } // we dispatch an activate event here to ensure that the right child window // is focused if (mode == SW_RESTORE || mode == SW_MAXIMIZE || mode == SW_SHOW) DispatchFocusToTopLevelWindow(NS_ACTIVATE); } return rv; } // Constrain a potential move to fit onscreen NS_METHOD nsWindow::ConstrainPosition(bool aAllowSlop, PRInt32 *aX, PRInt32 *aY) { if (!mIsTopWidgetWindow) // only a problem for top-level windows return NS_OK; bool doConstrain = false; // whether we have enough info to do anything /* get our playing field. use the current screen, or failing that for any reason, use device caps for the default screen. */ RECT screenRect; nsCOMPtr screenmgr = do_GetService(sScreenManagerContractID); if (screenmgr) { nsCOMPtr screen; PRInt32 left, top, width, height; // zero size rects confuse the screen manager width = mBounds.width > 0 ? mBounds.width : 1; height = mBounds.height > 0 ? mBounds.height : 1; screenmgr->ScreenForRect(*aX, *aY, width, height, getter_AddRefs(screen)); if (screen) { if (mSizeMode != nsSizeMode_Fullscreen) { // For normalized windows, use the desktop work area. screen->GetAvailRect(&left, &top, &width, &height); } else { // For full screen windows, use the desktop. screen->GetRect(&left, &top, &width, &height); } screenRect.left = left; screenRect.right = left+width; screenRect.top = top; screenRect.bottom = top+height; doConstrain = true; } } else { if (mWnd) { HDC dc = ::GetDC(mWnd); if (dc) { if (::GetDeviceCaps(dc, TECHNOLOGY) == DT_RASDISPLAY) { if (mSizeMode != nsSizeMode_Fullscreen) { ::SystemParametersInfo(SPI_GETWORKAREA, 0, &screenRect, 0); } else { screenRect.left = screenRect.top = 0; screenRect.right = GetSystemMetrics(SM_CXFULLSCREEN); screenRect.bottom = GetSystemMetrics(SM_CYFULLSCREEN); } doConstrain = true; } ::ReleaseDC(mWnd, dc); } } } if (aAllowSlop) { if (*aX < screenRect.left - mBounds.width + kWindowPositionSlop) *aX = screenRect.left - mBounds.width + kWindowPositionSlop; else if (*aX >= screenRect.right - kWindowPositionSlop) *aX = screenRect.right - kWindowPositionSlop; if (*aY < screenRect.top - mBounds.height + kWindowPositionSlop) *aY = screenRect.top - mBounds.height + kWindowPositionSlop; else if (*aY >= screenRect.bottom - kWindowPositionSlop) *aY = screenRect.bottom - kWindowPositionSlop; } else { if (*aX < screenRect.left) *aX = screenRect.left; else if (*aX >= screenRect.right - mBounds.width) *aX = screenRect.right - mBounds.width; if (*aY < screenRect.top) *aY = screenRect.top; else if (*aY >= screenRect.bottom - mBounds.height) *aY = screenRect.bottom - mBounds.height; } return NS_OK; } /************************************************************** * * SECTION: nsIWidget::Enable, nsIWidget::IsEnabled * * Enabling and disabling the widget. * **************************************************************/ // Enable/disable this component NS_METHOD nsWindow::Enable(bool bState) { if (mWnd) { ::EnableWindow(mWnd, bState); } return NS_OK; } // Return the current enable state NS_METHOD nsWindow::IsEnabled(bool *aState) { NS_ENSURE_ARG_POINTER(aState); *aState = !mWnd || (::IsWindowEnabled(mWnd) && ::IsWindowEnabled(::GetAncestor(mWnd, GA_ROOT))); return NS_OK; } /************************************************************** * * SECTION: nsIWidget::SetFocus * * Give the focus to this widget. * **************************************************************/ NS_METHOD nsWindow::SetFocus(bool aRaise) { if (mWnd) { #ifdef WINSTATE_DEBUG_OUTPUT if (mWnd == GetTopLevelHWND(mWnd)) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** SetFocus: [ top] raise=%d\n", aRaise)); } else { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** SetFocus: [child] raise=%d\n", aRaise)); } #endif // Uniconify, if necessary HWND toplevelWnd = GetTopLevelHWND(mWnd); if (aRaise && ::IsIconic(toplevelWnd)) { ::ShowWindow(toplevelWnd, SW_RESTORE); } ::SetFocus(mWnd); } return NS_OK; } /************************************************************** * * SECTION: Bounds * * GetBounds, GetClientBounds, GetScreenBounds, GetClientOffset * SetDrawsInTitlebar, GetNonClientMargins, SetNonClientMargins * * Bound calculations. * **************************************************************/ // Return the window's full dimensions in screen coordinates. // If the window has a parent, converts the origin to an offset // of the parent's screen origin. NS_METHOD nsWindow::GetBounds(nsIntRect &aRect) { if (mWnd) { RECT r; VERIFY(::GetWindowRect(mWnd, &r)); // assign size aRect.width = r.right - r.left; aRect.height = r.bottom - r.top; // popup window bounds' are in screen coordinates, not relative to parent // window if (mWindowType == eWindowType_popup) { aRect.x = r.left; aRect.y = r.top; return NS_OK; } // chrome on parent: // ___ 5,5 (chrome start) // | ____ 10,10 (client start) // | | ____ 20,20 (child start) // | | | // 20,20 - 5,5 = 15,15 (??) // minus GetClientOffset: // 15,15 - 5,5 = 10,10 // // no chrome on parent: // ______ 10,10 (win start) // | ____ 20,20 (child start) // | | // 20,20 - 10,10 = 10,10 // // walking the chain: // ___ 5,5 (chrome start) // | ___ 10,10 (client start) // | | ___ 20,20 (child start) // | | | __ 30,30 (child start) // | | | | // 30,30 - 20,20 = 10,10 (offset from second child to first) // 20,20 - 5,5 = 15,15 + 10,10 = 25,25 (??) // minus GetClientOffset: // 25,25 - 5,5 = 20,20 (offset from second child to parent client) // convert coordinates if parent exists HWND parent = ::GetParent(mWnd); if (parent) { RECT pr; VERIFY(::GetWindowRect(parent, &pr)); r.left -= pr.left; r.top -= pr.top; // adjust for chrome nsWindow* pWidget = static_cast(GetParent()); if (pWidget && pWidget->IsTopLevelWidget()) { nsIntPoint clientOffset = pWidget->GetClientOffset(); r.left -= clientOffset.x; r.top -= clientOffset.y; } } aRect.x = r.left; aRect.y = r.top; } else { aRect = mBounds; } return NS_OK; } // Get this component dimension NS_METHOD nsWindow::GetClientBounds(nsIntRect &aRect) { if (mWnd) { RECT r; VERIFY(::GetClientRect(mWnd, &r)); nsIntRect bounds; GetBounds(bounds); aRect.MoveTo(bounds.TopLeft() + GetClientOffset()); aRect.width = r.right - r.left; aRect.height = r.bottom - r.top; } else { aRect.SetRect(0,0,0,0); } return NS_OK; } // Like GetBounds, but don't offset by the parent NS_METHOD nsWindow::GetScreenBounds(nsIntRect &aRect) { if (mWnd) { RECT r; VERIFY(::GetWindowRect(mWnd, &r)); aRect.width = r.right - r.left; aRect.height = r.bottom - r.top; aRect.x = r.left; aRect.y = r.top; } else aRect = mBounds; return NS_OK; } // return the x,y offset of the client area from the origin // of the window. If the window is borderless returns (0,0). nsIntPoint nsWindow::GetClientOffset() { if (!mWnd) { return nsIntPoint(0, 0); } RECT r1; GetWindowRect(mWnd, &r1); nsIntPoint pt = WidgetToScreenOffset(); return nsIntPoint(pt.x - r1.left, pt.y - r1.top); } void nsWindow::SetDrawsInTitlebar(bool aState) { nsWindow * window = GetTopLevelWindow(true); if (window && window != this) { return window->SetDrawsInTitlebar(aState); } if (aState) { // left, top, right, bottom for nsIntMargin nsIntMargin margins(-1, 0, -1, -1); SetNonClientMargins(margins); } else { nsIntMargin margins(-1, -1, -1, -1); SetNonClientMargins(margins); } } NS_IMETHODIMP nsWindow::GetNonClientMargins(nsIntMargin &margins) { nsWindow * window = GetTopLevelWindow(true); if (window && window != this) { return window->GetNonClientMargins(margins); } if (mCustomNonClient) { margins = mNonClientMargins; return NS_OK; } margins.top = GetSystemMetrics(SM_CYCAPTION); margins.bottom = GetSystemMetrics(SM_CYFRAME); margins.top += margins.bottom; margins.left = margins.right = GetSystemMetrics(SM_CYFRAME); return NS_OK; } void nsWindow::ResetLayout() { // This will trigger a frame changed event, triggering // nc calc size and a sizemode gecko event. SetWindowPos(mWnd, 0, 0, 0, 0, 0, SWP_FRAMECHANGED|SWP_NOACTIVATE|SWP_NOMOVE| SWP_NOOWNERZORDER|SWP_NOSIZE|SWP_NOZORDER); // If hidden, just send the frame changed event for now. if (!mIsVisible) return; // Send a gecko size event to trigger reflow. RECT clientRc = {0}; GetClientRect(mWnd, &clientRc); nsIntRect evRect(nsWindowGfx::ToIntRect(clientRc)); OnResize(evRect); // Invalidate and update Invalidate(false); } // Internally track the caption status via a window property. Required // due to our internal handling of WM_NCACTIVATE when custom client // margins are set. static const PRUnichar kManageWindowInfoProperty[] = L"ManageWindowInfoProperty"; typedef BOOL (WINAPI *GetWindowInfoPtr)(HWND hwnd, PWINDOWINFO pwi); static GetWindowInfoPtr sGetWindowInfoPtrStub = NULL; BOOL WINAPI GetWindowInfoHook(HWND hWnd, PWINDOWINFO pwi) { if (!sGetWindowInfoPtrStub) { NS_ASSERTION(FALSE, "Something is horribly wrong in GetWindowInfoHook!"); return FALSE; } int windowStatus = reinterpret_cast(GetPropW(hWnd, kManageWindowInfoProperty)); // No property set, return the default data. if (!windowStatus) return sGetWindowInfoPtrStub(hWnd, pwi); // Call GetWindowInfo and update dwWindowStatus with our // internally tracked value. BOOL result = sGetWindowInfoPtrStub(hWnd, pwi); if (result && pwi) pwi->dwWindowStatus = (windowStatus == 1 ? 0 : WS_ACTIVECAPTION); return result; } void nsWindow::UpdateGetWindowInfoCaptionStatus(bool aActiveCaption) { if (!mWnd) return; if (!sGetWindowInfoPtrStub) { sUser32Intercept.Init("user32.dll"); if (!sUser32Intercept.AddHook("GetWindowInfo", reinterpret_cast(GetWindowInfoHook), (void**) &sGetWindowInfoPtrStub)) return; } // Update our internally tracked caption status SetPropW(mWnd, kManageWindowInfoProperty, reinterpret_cast(static_cast(aActiveCaption) + 1)); } // Called when the window layout changes: full screen mode transitions, // theme changes, and composition changes. Calculates the new non-client // margins and fires off a frame changed event, which triggers an nc calc // size windows event, kicking the changes in. bool nsWindow::UpdateNonClientMargins(PRInt32 aSizeMode, bool aReflowWindow) { if (!mCustomNonClient) return false; mNonClientOffset.top = mNonClientOffset.bottom = mNonClientOffset.left = mNonClientOffset.right = 0; if (aSizeMode == -1) aSizeMode = mSizeMode; if (aSizeMode == nsSizeMode_Minimized || aSizeMode == nsSizeMode_Fullscreen) { mCaptionHeight = mVertResizeMargin = mHorResizeMargin = 0; return true; } // Note, for maximized windows, we need to continue to offset the client by // thick frame margins of a normal window, since windows expects this // in it's DwmDefWndProc hit testing. mCaptionHeight = GetSystemMetrics(SM_CYCAPTION); mHorResizeMargin = GetSystemMetrics(SM_CXFRAME); mVertResizeMargin = GetSystemMetrics(SM_CYFRAME); mCaptionHeight += mVertResizeMargin; // If a margin value is 0, set the offset to the default size of the frame. // If a margin is -1, leave as default, and if a margin > 0, set the offset // so that the frame size is equal to the margin value. if (!mNonClientMargins.top) mNonClientOffset.top = mCaptionHeight; else if (mNonClientMargins.top > 0) mNonClientOffset.top = mCaptionHeight - mNonClientMargins.top; if (!mNonClientMargins.left) mNonClientOffset.left = mHorResizeMargin; else if (mNonClientMargins.left > 0) mNonClientOffset.left = mHorResizeMargin - mNonClientMargins.left; if (!mNonClientMargins.right) mNonClientOffset.right = mHorResizeMargin; else if (mNonClientMargins.right > 0) mNonClientOffset.right = mHorResizeMargin - mNonClientMargins.right; if (!mNonClientMargins.bottom) mNonClientOffset.bottom = mVertResizeMargin; else if (mNonClientMargins.bottom > 0) mNonClientOffset.bottom = mVertResizeMargin - mNonClientMargins.bottom; if (aSizeMode == nsSizeMode_Maximized) { // Address an issue with auto-hide taskbars which fall behind the window. // Ensure a 1 pixel margin at the bottom of the monitor so that unhiding // the taskbar works properly. MONITORINFO info = {sizeof(MONITORINFO)}; if (::GetMonitorInfo(::MonitorFromWindow(mWnd, MONITOR_DEFAULTTOPRIMARY), &info)) { RECT r; if (::GetWindowRect(mWnd, &r)) { // Adjust window rect to account for non-client margins. r.top += mVertResizeMargin - mNonClientOffset.top; r.left += mHorResizeMargin - mNonClientOffset.left; r.bottom -= mVertResizeMargin - mNonClientOffset.bottom; r.right -= mHorResizeMargin - mNonClientOffset.right; // Leave the 1 pixel margin if the window covers the monitor. if (r.top <= info.rcMonitor.top && r.left <= info.rcMonitor.left && r.right >= info.rcMonitor.right && r.bottom >= info.rcMonitor.bottom) mNonClientOffset.bottom -= r.bottom - info.rcMonitor.bottom + 1; } } } if (aReflowWindow) { // Force a reflow of content based on the new client // dimensions. ResetLayout(); } return true; } NS_IMETHODIMP nsWindow::SetNonClientMargins(nsIntMargin &margins) { if (!mIsTopWidgetWindow || mBorderStyle & eBorderStyle_none || mHideChrome) return NS_ERROR_INVALID_ARG; // Request for a reset if (margins.top == -1 && margins.left == -1 && margins.right == -1 && margins.bottom == -1) { mCustomNonClient = false; mNonClientMargins = margins; RemovePropW(mWnd, kManageWindowInfoProperty); // Force a reflow of content based on the new client // dimensions. ResetLayout(); return NS_OK; } if (margins.top < -1 || margins.bottom < -1 || margins.left < -1 || margins.right < -1) return NS_ERROR_INVALID_ARG; mNonClientMargins = margins; mCustomNonClient = true; if (!UpdateNonClientMargins()) { NS_WARNING("UpdateNonClientMargins failed!"); return false; } return NS_OK; } void nsWindow::InvalidateNonClientRegion() { // +-+-----------------------+-+ // | | app non-client chrome | | // | +-----------------------+ | // | | app client chrome | | } // | +-----------------------+ | } // | | app content | | } area we don't want to invalidate // | +-----------------------+ | } // | | app client chrome | | } // | +-----------------------+ | // +---------------------------+ < // ^ ^ windows non-client chrome // client area = app * RECT rect; GetWindowRect(mWnd, &rect); MapWindowPoints(NULL, mWnd, (LPPOINT)&rect, 2); HRGN winRgn = CreateRectRgnIndirect(&rect); // Subtract app client chrome and app content leaving // windows non-client chrome and app non-client chrome // in winRgn. GetWindowRect(mWnd, &rect); rect.top += mCaptionHeight; rect.right -= mHorResizeMargin; rect.bottom -= mHorResizeMargin; rect.left += mVertResizeMargin; MapWindowPoints(NULL, mWnd, (LPPOINT)&rect, 2); HRGN clientRgn = CreateRectRgnIndirect(&rect); CombineRgn(winRgn, winRgn, clientRgn, RGN_DIFF); DeleteObject(clientRgn); // triggers ncpaint and paint events for the two areas RedrawWindow(mWnd, NULL, winRgn, RDW_FRAME|RDW_INVALIDATE); DeleteObject(winRgn); } HRGN nsWindow::ExcludeNonClientFromPaintRegion(HRGN aRegion) { RECT rect; HRGN rgn = NULL; if (aRegion == (HRGN)1) { // undocumented value indicating a full refresh GetWindowRect(mWnd, &rect); rgn = CreateRectRgnIndirect(&rect); } else { rgn = aRegion; } GetClientRect(mWnd, &rect); MapWindowPoints(mWnd, NULL, (LPPOINT)&rect, 2); HRGN nonClientRgn = CreateRectRgnIndirect(&rect); CombineRgn(rgn, rgn, nonClientRgn, RGN_DIFF); DeleteObject(nonClientRgn); return rgn; } /************************************************************** * * SECTION: nsIWidget::SetBackgroundColor * * Sets the window background paint color. * **************************************************************/ NS_METHOD nsWindow::SetBackgroundColor(const nscolor &aColor) { nsBaseWidget::SetBackgroundColor(aColor); if (mBrush) ::DeleteObject(mBrush); mBrush = ::CreateSolidBrush(NSRGB_2_COLOREF(mBackground)); if (mWnd != NULL) { ::SetClassLongPtrW(mWnd, GCLP_HBRBACKGROUND, (LONG_PTR)mBrush); } return NS_OK; } /************************************************************** * * SECTION: nsIWidget::SetCursor * * SetCursor and related utilities for manging cursor state. * **************************************************************/ // Set this component cursor NS_METHOD nsWindow::SetCursor(nsCursor aCursor) { // Only change cursor if it's changing //XXX mCursor isn't always right. Scrollbars and others change it, too. //XXX If we want this optimization we need a better way to do it. //if (aCursor != mCursor) { HCURSOR newCursor = NULL; switch (aCursor) { case eCursor_select: newCursor = ::LoadCursor(NULL, IDC_IBEAM); break; case eCursor_wait: newCursor = ::LoadCursor(NULL, IDC_WAIT); break; case eCursor_hyperlink: { newCursor = ::LoadCursor(NULL, IDC_HAND); break; } case eCursor_standard: newCursor = ::LoadCursor(NULL, IDC_ARROW); break; case eCursor_n_resize: case eCursor_s_resize: newCursor = ::LoadCursor(NULL, IDC_SIZENS); break; case eCursor_w_resize: case eCursor_e_resize: newCursor = ::LoadCursor(NULL, IDC_SIZEWE); break; case eCursor_nw_resize: case eCursor_se_resize: newCursor = ::LoadCursor(NULL, IDC_SIZENWSE); break; case eCursor_ne_resize: case eCursor_sw_resize: newCursor = ::LoadCursor(NULL, IDC_SIZENESW); break; case eCursor_crosshair: newCursor = ::LoadCursor(NULL, IDC_CROSS); break; case eCursor_move: newCursor = ::LoadCursor(NULL, IDC_SIZEALL); break; case eCursor_help: newCursor = ::LoadCursor(NULL, IDC_HELP); break; case eCursor_copy: // CSS3 newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_COPY)); break; case eCursor_alias: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_ALIAS)); break; case eCursor_cell: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_CELL)); break; case eCursor_grab: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_GRAB)); break; case eCursor_grabbing: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_GRABBING)); break; case eCursor_spinning: newCursor = ::LoadCursor(NULL, IDC_APPSTARTING); break; case eCursor_context_menu: // XXX this CSS3 cursor needs to be implemented break; case eCursor_zoom_in: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_ZOOMIN)); break; case eCursor_zoom_out: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_ZOOMOUT)); break; case eCursor_not_allowed: case eCursor_no_drop: newCursor = ::LoadCursor(NULL, IDC_NO); break; case eCursor_col_resize: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_COLRESIZE)); break; case eCursor_row_resize: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_ROWRESIZE)); break; case eCursor_vertical_text: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_VERTICALTEXT)); break; case eCursor_all_scroll: // XXX not 100% appropriate perhaps newCursor = ::LoadCursor(NULL, IDC_SIZEALL); break; case eCursor_nesw_resize: newCursor = ::LoadCursor(NULL, IDC_SIZENESW); break; case eCursor_nwse_resize: newCursor = ::LoadCursor(NULL, IDC_SIZENWSE); break; case eCursor_ns_resize: newCursor = ::LoadCursor(NULL, IDC_SIZENS); break; case eCursor_ew_resize: newCursor = ::LoadCursor(NULL, IDC_SIZEWE); break; case eCursor_none: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_NONE)); break; default: NS_ERROR("Invalid cursor type"); break; } if (NULL != newCursor) { mCursor = aCursor; HCURSOR oldCursor = ::SetCursor(newCursor); if (sHCursor == oldCursor) { NS_IF_RELEASE(sCursorImgContainer); if (sHCursor != NULL) ::DestroyIcon(sHCursor); sHCursor = NULL; } } return NS_OK; } // Setting the actual cursor NS_IMETHODIMP nsWindow::SetCursor(imgIContainer* aCursor, PRUint32 aHotspotX, PRUint32 aHotspotY) { if (sCursorImgContainer == aCursor && sHCursor) { ::SetCursor(sHCursor); return NS_OK; } PRInt32 width; PRInt32 height; nsresult rv; rv = aCursor->GetWidth(&width); NS_ENSURE_SUCCESS(rv, rv); rv = aCursor->GetHeight(&height); NS_ENSURE_SUCCESS(rv, rv); // Reject cursors greater than 128 pixels in either direction, to prevent // spoofing. // XXX ideally we should rescale. Also, we could modify the API to // allow trusted content to set larger cursors. if (width > 128 || height > 128) return NS_ERROR_NOT_AVAILABLE; HCURSOR cursor; // No scaling gfxIntSize size(0, 0); rv = nsWindowGfx::CreateIcon(aCursor, true, aHotspotX, aHotspotY, size, &cursor); NS_ENSURE_SUCCESS(rv, rv); mCursor = nsCursor(-1); ::SetCursor(cursor); NS_IF_RELEASE(sCursorImgContainer); sCursorImgContainer = aCursor; NS_ADDREF(sCursorImgContainer); if (sHCursor != NULL) ::DestroyIcon(sHCursor); sHCursor = cursor; return NS_OK; } /************************************************************** * * SECTION: nsIWidget::Get/SetTransparencyMode * * Manage the transparency mode of the top-level window * containing this widget. * **************************************************************/ #ifdef MOZ_XUL nsTransparencyMode nsWindow::GetTransparencyMode() { return GetTopLevelWindow(true)->GetWindowTranslucencyInner(); } void nsWindow::SetTransparencyMode(nsTransparencyMode aMode) { GetTopLevelWindow(true)->SetWindowTranslucencyInner(aMode); } static const nsIntRegion RegionFromArray(const nsTArray& aRects) { nsIntRegion region; for (PRUint32 i = 0; i < aRects.Length(); ++i) { region.Or(region, aRects[i]); } return region; } void nsWindow::UpdateOpaqueRegion(const nsIntRegion &aOpaqueRegion) { #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN if (!HasGlass() || GetParent()) return; // If there is no opaque region or hidechrome=true, set margins // to support a full sheet of glass. Comments in MSDN indicate // all values must be set to -1 to get a full sheet of glass. MARGINS margins = { -1, -1, -1, -1 }; if (!aOpaqueRegion.IsEmpty()) { nsIntRect pluginBounds; for (nsIWidget* child = GetFirstChild(); child; child = child->GetNextSibling()) { nsWindowType type; child->GetWindowType(type); if (type == eWindowType_plugin) { // Collect the bounds of all plugins for GetLargestRectangle. nsIntRect childBounds; child->GetBounds(childBounds); pluginBounds.UnionRect(pluginBounds, childBounds); } } nsIntRect clientBounds; GetClientBounds(clientBounds); // Find the largest rectangle and use that to calculate the inset. Our top // priority is to include the bounds of all plugins. nsIntRect largest = aOpaqueRegion.GetLargestRectangle(pluginBounds); margins.cxLeftWidth = largest.x; margins.cxRightWidth = clientBounds.width - largest.XMost(); margins.cyBottomHeight = clientBounds.height - largest.YMost(); if (mCustomNonClient) { // The minimum glass height must be the caption buttons height, // otherwise the buttons are drawn incorrectly. largest.y = NS_MAX(largest.y, nsUXThemeData::sCommandButtons[CMDBUTTONIDX_BUTTONBOX].cy); } margins.cyTopHeight = largest.y; } // Only update glass area if there are changes if (memcmp(&mGlassMargins, &margins, sizeof mGlassMargins)) { mGlassMargins = margins; UpdateGlass(); } #endif // #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN } void nsWindow::UpdateGlass() { #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN MARGINS margins = mGlassMargins; // DWMNCRP_USEWINDOWSTYLE - The non-client rendering area is // rendered based on the window style. // DWMNCRP_ENABLED - The non-client area rendering is // enabled; the window style is ignored. DWMNCRENDERINGPOLICY policy = DWMNCRP_USEWINDOWSTYLE; switch (mTransparencyMode) { case eTransparencyBorderlessGlass: // Only adjust if there is some opaque rectangle if (margins.cxLeftWidth >= 0) { margins.cxLeftWidth += kGlassMarginAdjustment; margins.cyTopHeight += kGlassMarginAdjustment; margins.cxRightWidth += kGlassMarginAdjustment; margins.cyBottomHeight += kGlassMarginAdjustment; } // Fall through case eTransparencyGlass: policy = DWMNCRP_ENABLED; break; } PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("glass margins: left:%d top:%d right:%d bottom:%d\n", margins.cxLeftWidth, margins.cyTopHeight, margins.cxRightWidth, margins.cyBottomHeight)); // Extends the window frame behind the client area if(nsUXThemeData::CheckForCompositor()) { nsUXThemeData::dwmExtendFrameIntoClientAreaPtr(mWnd, &margins); nsUXThemeData::dwmSetWindowAttributePtr(mWnd, DWMWA_NCRENDERING_POLICY, &policy, sizeof policy); } #endif // #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN } #endif /************************************************************** * * SECTION: nsIWidget::HideWindowChrome * * Show or hide window chrome. * **************************************************************/ NS_IMETHODIMP nsWindow::HideWindowChrome(bool aShouldHide) { HWND hwnd = GetTopLevelHWND(mWnd, true); if (!GetNSWindowPtr(hwnd)) { NS_WARNING("Trying to hide window decorations in an embedded context"); return NS_ERROR_FAILURE; } if (mHideChrome == aShouldHide) return NS_OK; DWORD_PTR style, exStyle; mHideChrome = aShouldHide; if (aShouldHide) { DWORD_PTR tempStyle = ::GetWindowLongPtrW(hwnd, GWL_STYLE); DWORD_PTR tempExStyle = ::GetWindowLongPtrW(hwnd, GWL_EXSTYLE); style = tempStyle & ~(WS_CAPTION | WS_THICKFRAME); exStyle = tempExStyle & ~(WS_EX_DLGMODALFRAME | WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE | WS_EX_STATICEDGE); mOldStyle = tempStyle; mOldExStyle = tempExStyle; } else { if (!mOldStyle || !mOldExStyle) { mOldStyle = ::GetWindowLongPtrW(hwnd, GWL_STYLE); mOldExStyle = ::GetWindowLongPtrW(hwnd, GWL_EXSTYLE); } style = mOldStyle; exStyle = mOldExStyle; } VERIFY_WINDOW_STYLE(style); ::SetWindowLongPtrW(hwnd, GWL_STYLE, style); ::SetWindowLongPtrW(hwnd, GWL_EXSTYLE, exStyle); return NS_OK; } /************************************************************** * * SECTION: nsWindow::Invalidate * * Invalidate an area of the client for painting. * **************************************************************/ // Invalidate this component visible area NS_METHOD nsWindow::Invalidate(bool aIsSynchronous, bool aEraseBackground, bool aUpdateNCArea, bool aIncludeChildren) { if (!mWnd) { return NS_OK; } #ifdef WIDGET_DEBUG_OUTPUT debug_DumpInvalidate(stdout, this, nsnull, aIsSynchronous, nsCAutoString("noname"), (PRInt32) mWnd); #endif // WIDGET_DEBUG_OUTPUT DWORD flags = RDW_INVALIDATE; if (aEraseBackground) { flags |= RDW_ERASE; } if (aIsSynchronous) { flags |= RDW_UPDATENOW; } if (aUpdateNCArea) { flags |= RDW_FRAME; } if (aIncludeChildren) { flags |= RDW_ALLCHILDREN; } VERIFY(::RedrawWindow(mWnd, NULL, NULL, flags)); return NS_OK; } // Invalidate this component visible area NS_METHOD nsWindow::Invalidate(const nsIntRect & aRect, bool aIsSynchronous) { if (mWnd) { #ifdef WIDGET_DEBUG_OUTPUT debug_DumpInvalidate(stdout, this, &aRect, aIsSynchronous, nsCAutoString("noname"), (PRInt32) mWnd); #endif // WIDGET_DEBUG_OUTPUT RECT rect; rect.left = aRect.x; rect.top = aRect.y; rect.right = aRect.x + aRect.width; rect.bottom = aRect.y + aRect.height; VERIFY(::InvalidateRect(mWnd, &rect, FALSE)); if (aIsSynchronous) { VERIFY(::UpdateWindow(mWnd)); } } return NS_OK; } NS_IMETHODIMP nsWindow::MakeFullScreen(bool aFullScreen) { // taskbarInfo will be NULL pre Windows 7 until Bug 680227 is resolved. nsCOMPtr taskbarInfo = do_GetService(NS_TASKBAR_CONTRACTID); mFullscreenMode = aFullScreen; if (aFullScreen) { if (mSizeMode == nsSizeMode_Fullscreen) return NS_OK; mOldSizeMode = mSizeMode; SetSizeMode(nsSizeMode_Fullscreen); // Notify the taskbar that we will be entering full screen mode. if (taskbarInfo) { taskbarInfo->PrepareFullScreenHWND(mWnd, TRUE); } } else { SetSizeMode(mOldSizeMode); } UpdateNonClientMargins(); bool visible = mIsVisible; if (mOldSizeMode == nsSizeMode_Normal) Show(false); // Will call hide chrome, reposition window. Note this will // also cache dimensions for restoration, so it should only // be called once per fullscreen request. nsresult rv = nsBaseWidget::MakeFullScreen(aFullScreen); if (visible) { Show(true); Invalidate(false); } // Notify the taskbar that we have exited full screen mode. if (!aFullScreen && taskbarInfo) { taskbarInfo->PrepareFullScreenHWND(mWnd, FALSE); } // Let the dom know via web shell window nsSizeModeEvent event(true, NS_SIZEMODE, this); event.mSizeMode = mSizeMode; InitEvent(event); DispatchWindowEvent(&event); return rv; } /************************************************************** * * SECTION: nsIWidget::Update * * Force a synchronous repaint of the window. * **************************************************************/ NS_IMETHODIMP nsWindow::Update() { nsresult rv = NS_OK; // updates can come through for windows no longer holding an mWnd during // deletes triggered by JavaScript in buttons with mouse feedback if (mWnd) VERIFY(::UpdateWindow(mWnd)); return rv; } /************************************************************** * * SECTION: Native data storage * * nsIWidget::GetNativeData * nsIWidget::FreeNativeData * * Set or clear native data based on a constant. * **************************************************************/ // Return some native data according to aDataType void* nsWindow::GetNativeData(PRUint32 aDataType) { nsAutoString className; switch (aDataType) { case NS_NATIVE_TMP_WINDOW: GetWindowClass(className); return (void*)::CreateWindowExW(mIsRTL ? WS_EX_LAYOUTRTL : 0, className.get(), L"", WS_CHILD, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, mWnd, NULL, nsToolkit::mDllInstance, NULL); case NS_NATIVE_PLUGIN_PORT: case NS_NATIVE_WIDGET: case NS_NATIVE_WINDOW: case NS_NATIVE_SHAREABLE_WINDOW: return (void*)mWnd; case NS_NATIVE_GRAPHIC: // XXX: This is sleezy!! Remember to Release the DC after using it! #ifdef MOZ_XUL return (void*)(eTransparencyTransparent == mTransparencyMode) ? mMemoryDC : ::GetDC(mWnd); #else return (void*)::GetDC(mWnd); #endif #ifdef NS_ENABLE_TSF case NS_NATIVE_TSF_THREAD_MGR: return nsTextStore::GetThreadMgr(); case NS_NATIVE_TSF_CATEGORY_MGR: return nsTextStore::GetCategoryMgr(); case NS_NATIVE_TSF_DISPLAY_ATTR_MGR: return nsTextStore::GetDisplayAttrMgr(); #endif //NS_ENABLE_TSF default: break; } return NULL; } // Free some native data according to aDataType void nsWindow::FreeNativeData(void * data, PRUint32 aDataType) { switch (aDataType) { case NS_NATIVE_GRAPHIC: #ifdef MOZ_XUL if (eTransparencyTransparent != mTransparencyMode) ::ReleaseDC(mWnd, (HDC)data); #else ::ReleaseDC(mWnd, (HDC)data); #endif break; case NS_NATIVE_WIDGET: case NS_NATIVE_WINDOW: case NS_NATIVE_PLUGIN_PORT: break; default: break; } } /************************************************************** * * SECTION: nsIWidget::SetTitle * * Set the main windows title text. * **************************************************************/ NS_METHOD nsWindow::SetTitle(const nsAString& aTitle) { const nsString& strTitle = PromiseFlatString(aTitle); ::SendMessageW(mWnd, WM_SETTEXT, (WPARAM)0, (LPARAM)(LPCWSTR)strTitle.get()); return NS_OK; } /************************************************************** * * SECTION: nsIWidget::SetIcon * * Set the main windows icon. * **************************************************************/ NS_METHOD nsWindow::SetIcon(const nsAString& aIconSpec) { // Assume the given string is a local identifier for an icon file. nsCOMPtr iconFile; ResolveIconName(aIconSpec, NS_LITERAL_STRING(".ico"), getter_AddRefs(iconFile)); if (!iconFile) return NS_OK; // not an error if icon is not found nsAutoString iconPath; iconFile->GetPath(iconPath); // XXX this should use MZLU (see bug 239279) ::SetLastError(0); HICON bigIcon = (HICON)::LoadImageW(NULL, (LPCWSTR)iconPath.get(), IMAGE_ICON, ::GetSystemMetrics(SM_CXICON), ::GetSystemMetrics(SM_CYICON), LR_LOADFROMFILE ); HICON smallIcon = (HICON)::LoadImageW(NULL, (LPCWSTR)iconPath.get(), IMAGE_ICON, ::GetSystemMetrics(SM_CXSMICON), ::GetSystemMetrics(SM_CYSMICON), LR_LOADFROMFILE ); if (bigIcon) { HICON icon = (HICON) ::SendMessageW(mWnd, WM_SETICON, (WPARAM)ICON_BIG, (LPARAM)bigIcon); if (icon) ::DestroyIcon(icon); } #ifdef DEBUG_SetIcon else { NS_LossyConvertUTF16toASCII cPath(iconPath); PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("\nIcon load error; icon=%s, rc=0x%08X\n\n", cPath.get(), ::GetLastError())); } #endif if (smallIcon) { HICON icon = (HICON) ::SendMessageW(mWnd, WM_SETICON, (WPARAM)ICON_SMALL, (LPARAM)smallIcon); if (icon) ::DestroyIcon(icon); } #ifdef DEBUG_SetIcon else { NS_LossyConvertUTF16toASCII cPath(iconPath); PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("\nSmall icon load error; icon=%s, rc=0x%08X\n\n", cPath.get(), ::GetLastError())); } #endif return NS_OK; } /************************************************************** * * SECTION: nsIWidget::WidgetToScreenOffset * * Return this widget's origin in screen coordinates. * **************************************************************/ nsIntPoint nsWindow::WidgetToScreenOffset() { POINT point; point.x = 0; point.y = 0; ::ClientToScreen(mWnd, &point); return nsIntPoint(point.x, point.y); } nsIntSize nsWindow::ClientToWindowSize(const nsIntSize& aClientSize) { if (!IsPopupWithTitleBar()) return aClientSize; // just use (200, 200) as the position RECT r; r.left = 200; r.top = 200; r.right = 200 + aClientSize.width; r.bottom = 200 + aClientSize.height; ::AdjustWindowRectEx(&r, WindowStyle(), false, WindowExStyle()); return nsIntSize(r.right - r.left, r.bottom - r.top); } /************************************************************** * * SECTION: nsIWidget::EnableDragDrop * * Enables/Disables drag and drop of files on this widget. * **************************************************************/ NS_METHOD nsWindow::EnableDragDrop(bool aEnable) { NS_ASSERTION(mWnd, "nsWindow::EnableDragDrop() called after Destroy()"); nsresult rv = NS_ERROR_FAILURE; if (aEnable) { if (nsnull == mNativeDragTarget) { mNativeDragTarget = new nsNativeDragTarget(this); if (NULL != mNativeDragTarget) { mNativeDragTarget->AddRef(); if (S_OK == ::CoLockObjectExternal((LPUNKNOWN)mNativeDragTarget,TRUE,FALSE)) { if (S_OK == ::RegisterDragDrop(mWnd, (LPDROPTARGET)mNativeDragTarget)) { rv = NS_OK; } } } } } else { if (nsnull != mWnd && NULL != mNativeDragTarget) { ::RevokeDragDrop(mWnd); if (S_OK == ::CoLockObjectExternal((LPUNKNOWN)mNativeDragTarget, FALSE, TRUE)) { rv = NS_OK; } mNativeDragTarget->DragCancel(); NS_RELEASE(mNativeDragTarget); } } return rv; } /************************************************************** * * SECTION: nsIWidget::CaptureMouse * * Enables/Disables system mouse capture. * **************************************************************/ NS_METHOD nsWindow::CaptureMouse(bool aCapture) { if (!nsToolkit::gMouseTrailer) { NS_ERROR("nsWindow::CaptureMouse called after nsToolkit destroyed"); return NS_OK; } if (aCapture) { nsToolkit::gMouseTrailer->SetCaptureWindow(mWnd); ::SetCapture(mWnd); } else { nsToolkit::gMouseTrailer->SetCaptureWindow(NULL); ::ReleaseCapture(); } sIsInMouseCapture = aCapture; return NS_OK; } /************************************************************** * * SECTION: nsIWidget::CaptureRollupEvents * * Dealing with event rollup on destroy for popups. Enables & * Disables system capture of any and all events that would * cause a dropdown to be rolled up. * **************************************************************/ NS_IMETHODIMP nsWindow::CaptureRollupEvents(nsIRollupListener * aListener, bool aDoCapture, bool aConsumeRollupEvent) { if (aDoCapture) { /* we haven't bothered carrying a weak reference to sRollupWidget because we believe lifespan is properly scoped. this next assertion helps assure that remains true. */ NS_ASSERTION(!sRollupWidget, "rollup widget reassigned before release"); sRollupConsumeEvent = aConsumeRollupEvent; NS_IF_RELEASE(sRollupWidget); sRollupListener = aListener; sRollupWidget = this; NS_ADDREF(this); if (!sMsgFilterHook && !sCallProcHook && !sCallMouseHook) { RegisterSpecialDropdownHooks(); } sProcessHook = true; } else { sRollupListener = nsnull; NS_IF_RELEASE(sRollupWidget); sProcessHook = false; UnregisterSpecialDropdownHooks(); } return NS_OK; } /************************************************************** * * SECTION: nsIWidget::GetAttention * * Bring this window to the user's attention. * **************************************************************/ // Draw user's attention to this window until it comes to foreground. NS_IMETHODIMP nsWindow::GetAttention(PRInt32 aCycleCount) { // Got window? if (!mWnd) return NS_ERROR_NOT_INITIALIZED; HWND flashWnd = GetTopLevelHWND(mWnd, false, false); HWND fgWnd = ::GetForegroundWindow(); // Don't flash if the flash count is 0 or if the foreground window is our // window handle or that of our owned-most window. if (aCycleCount == 0 || flashWnd == fgWnd || flashWnd == GetTopLevelHWND(fgWnd, false, false)) { return NS_OK; } DWORD defaultCycleCount = 0; ::SystemParametersInfo(SPI_GETFOREGROUNDFLASHCOUNT, 0, &defaultCycleCount, 0); FLASHWINFO flashInfo = { sizeof(FLASHWINFO), flashWnd, FLASHW_ALL, aCycleCount > 0 ? aCycleCount : defaultCycleCount, 0 }; ::FlashWindowEx(&flashInfo); return NS_OK; } void nsWindow::StopFlashing() { HWND flashWnd = mWnd; while (HWND ownerWnd = ::GetWindow(flashWnd, GW_OWNER)) { flashWnd = ownerWnd; } FLASHWINFO flashInfo = { sizeof(FLASHWINFO), flashWnd, FLASHW_STOP, 0, 0 }; ::FlashWindowEx(&flashInfo); } /************************************************************** * * SECTION: nsIWidget::HasPendingInputEvent * * Ask whether there user input events pending. All input events are * included, including those not targeted at this nsIwidget instance. * **************************************************************/ bool nsWindow::HasPendingInputEvent() { // If there is pending input or the user is currently // moving the window then return true. // Note: When the user is moving the window WIN32 spins // a separate event loop and input events are not // reported to the application. if (HIWORD(GetQueueStatus(QS_INPUT))) return true; GUITHREADINFO guiInfo; guiInfo.cbSize = sizeof(GUITHREADINFO); if (!GetGUIThreadInfo(GetCurrentThreadId(), &guiInfo)) return false; return GUI_INMOVESIZE == (guiInfo.flags & GUI_INMOVESIZE); } /************************************************************** * * SECTION: nsIWidget::GetLayerManager * * Get the layer manager associated with this widget. * **************************************************************/ struct LayerManagerPrefs { LayerManagerPrefs() : mAccelerateByDefault(true) , mDisableAcceleration(false) , mPreferOpenGL(false) , mPreferD3D9(false) {} bool mAccelerateByDefault; bool mDisableAcceleration; bool mForceAcceleration; bool mPreferOpenGL; bool mPreferD3D9; }; static void GetLayerManagerPrefs(LayerManagerPrefs* aManagerPrefs) { Preferences::GetBool("layers.acceleration.disabled", &aManagerPrefs->mDisableAcceleration); Preferences::GetBool("layers.acceleration.force-enabled", &aManagerPrefs->mForceAcceleration); Preferences::GetBool("layers.prefer-opengl", &aManagerPrefs->mPreferOpenGL); Preferences::GetBool("layers.prefer-d3d9", &aManagerPrefs->mPreferD3D9); const char *acceleratedEnv = PR_GetEnv("MOZ_ACCELERATED"); aManagerPrefs->mAccelerateByDefault = aManagerPrefs->mAccelerateByDefault || (acceleratedEnv && (*acceleratedEnv != '0')); bool safeMode = false; nsCOMPtr xr = do_GetService("@mozilla.org/xre/runtime;1"); if (xr) xr->GetInSafeMode(&safeMode); aManagerPrefs->mDisableAcceleration = aManagerPrefs->mDisableAcceleration || safeMode; } LayerManager* nsWindow::GetLayerManager(PLayersChild* aShadowManager, LayersBackend aBackendHint, LayerManagerPersistence aPersistence, bool* aAllowRetaining) { if (aAllowRetaining) { *aAllowRetaining = true; } #ifdef MOZ_ENABLE_D3D10_LAYER if (mLayerManager) { if (mLayerManager->GetBackendType() == mozilla::layers::LayerManager::LAYERS_D3D10) { mozilla::layers::LayerManagerD3D10 *layerManagerD3D10 = static_cast(mLayerManager.get()); if (layerManagerD3D10->device() != gfxWindowsPlatform::GetPlatform()->GetD3D10Device()) { mLayerManager->Destroy(); mLayerManager = nsnull; } } } #endif RECT windowRect; ::GetClientRect(mWnd, &windowRect); if (!mLayerManager || (!sAllowD3D9 && aPersistence == LAYER_MANAGER_PERSISTENT && mLayerManager->GetBackendType() == mozilla::layers::LayerManager::LAYERS_BASIC)) { // If D3D9 is not currently allowed but the permanent manager is required, // -and- we're currently using basic layers, run through this check. LayerManagerPrefs prefs; GetLayerManagerPrefs(&prefs); /* We don't currently support using an accelerated layer manager with * transparent windows so don't even try. I'm also not sure if we even * want to support this case. See bug #593471 */ if (eTransparencyTransparent == mTransparencyMode || prefs.mDisableAcceleration || windowRect.right - windowRect.left > MAX_ACCELERATED_DIMENSION || windowRect.bottom - windowRect.top > MAX_ACCELERATED_DIMENSION) mUseAcceleratedRendering = false; else if (prefs.mAccelerateByDefault) mUseAcceleratedRendering = true; if (mUseAcceleratedRendering) { if (aPersistence == LAYER_MANAGER_PERSISTENT && !sAllowD3D9) { // This will clear out our existing layer manager if we have one since // if we hit this with a LayerManager we're always using BasicLayers. nsToolkit::StartAllowingD3D9(); } #ifdef MOZ_ENABLE_D3D10_LAYER if (!prefs.mPreferD3D9 && !prefs.mPreferOpenGL) { nsRefPtr layerManager = new mozilla::layers::LayerManagerD3D10(this); if (layerManager->Initialize()) { mLayerManager = layerManager; } } #endif #ifdef MOZ_ENABLE_D3D9_LAYER if (!prefs.mPreferOpenGL && !mLayerManager && sAllowD3D9) { nsRefPtr layerManager = new mozilla::layers::LayerManagerD3D9(this); if (layerManager->Initialize()) { mLayerManager = layerManager; } } #endif if (!mLayerManager && prefs.mPreferOpenGL) { nsCOMPtr gfxInfo = do_GetService("@mozilla.org/gfx/info;1"); PRInt32 status = nsIGfxInfo::FEATURE_NO_INFO; if (gfxInfo && !prefs.mForceAcceleration) { gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_OPENGL_LAYERS, &status); } if (status == nsIGfxInfo::FEATURE_NO_INFO) { nsRefPtr layerManager = new mozilla::layers::LayerManagerOGL(this); if (layerManager->Initialize()) { mLayerManager = layerManager; } } else { NS_WARNING("OpenGL accelerated layers are not supported on this system."); } } } // Fall back to software if we couldn't use any hardware backends. if (!mLayerManager) mLayerManager = CreateBasicLayerManager(); } NS_ASSERTION(mLayerManager, "Couldn't provide a valid layer manager."); return mLayerManager; } /************************************************************** * * SECTION: nsIWidget::GetThebesSurface * * Get the Thebes surface associated with this widget. * **************************************************************/ gfxASurface *nsWindow::GetThebesSurface() { #ifdef CAIRO_HAS_D2D_SURFACE if (mD2DWindowSurface) { return mD2DWindowSurface; } #endif if (mPaintDC) return (new gfxWindowsSurface(mPaintDC)); #ifdef CAIRO_HAS_D2D_SURFACE if (gfxWindowsPlatform::GetPlatform()->GetRenderMode() == gfxWindowsPlatform::RENDER_DIRECT2D) { gfxASurface::gfxContentType content = gfxASurface::CONTENT_COLOR; #if defined(MOZ_XUL) if (mTransparencyMode != eTransparencyOpaque) { content = gfxASurface::CONTENT_COLOR_ALPHA; } #endif return (new gfxD2DSurface(mWnd, content)); } else { #endif PRUint32 flags = gfxWindowsSurface::FLAG_TAKE_DC; if (mTransparencyMode != eTransparencyOpaque) { flags |= gfxWindowsSurface::FLAG_IS_TRANSPARENT; } return (new gfxWindowsSurface(mWnd, flags)); #ifdef CAIRO_HAS_D2D_SURFACE } #endif } /************************************************************** * * SECTION: nsIWidget::OnDefaultButtonLoaded * * Called after the dialog is loaded and it has a default button. * **************************************************************/ NS_IMETHODIMP nsWindow::OnDefaultButtonLoaded(const nsIntRect &aButtonRect) { if (aButtonRect.IsEmpty()) return NS_OK; // Don't snap when we are not active. HWND activeWnd = ::GetActiveWindow(); if (activeWnd != ::GetForegroundWindow() || GetTopLevelHWND(mWnd, true) != GetTopLevelHWND(activeWnd, true)) { return NS_OK; } bool isAlwaysSnapCursor = Preferences::GetBool("ui.cursor_snapping.always_enabled", false); if (!isAlwaysSnapCursor) { BOOL snapDefaultButton; if (!::SystemParametersInfo(SPI_GETSNAPTODEFBUTTON, 0, &snapDefaultButton, 0) || !snapDefaultButton) return NS_OK; } nsIntRect widgetRect; nsresult rv = GetScreenBounds(widgetRect); NS_ENSURE_SUCCESS(rv, rv); nsIntRect buttonRect(aButtonRect + widgetRect.TopLeft()); nsIntPoint centerOfButton(buttonRect.x + buttonRect.width / 2, buttonRect.y + buttonRect.height / 2); // The center of the button can be outside of the widget. // E.g., it could be hidden by scrolling. if (!widgetRect.Contains(centerOfButton)) { return NS_OK; } if (!::SetCursorPos(centerOfButton.x, centerOfButton.y)) { NS_ERROR("SetCursorPos failed"); return NS_ERROR_FAILURE; } return NS_OK; } NS_IMETHODIMP nsWindow::OverrideSystemMouseScrollSpeed(PRInt32 aOriginalDelta, bool aIsHorizontal, PRInt32 &aOverriddenDelta) { // The default vertical and horizontal scrolling speed is 3, this is defined // on the document of SystemParametersInfo in MSDN. const PRUint32 kSystemDefaultScrollingSpeed = 3; PRInt32 absOriginDelta = NS_ABS(aOriginalDelta); // Compute the simple overridden speed. PRInt32 absComputedOverriddenDelta; nsresult rv = nsBaseWidget::OverrideSystemMouseScrollSpeed(absOriginDelta, aIsHorizontal, absComputedOverriddenDelta); NS_ENSURE_SUCCESS(rv, rv); aOverriddenDelta = aOriginalDelta; if (absComputedOverriddenDelta == absOriginDelta) { // We don't override now. return NS_OK; } // Otherwise, we should check whether the user customized the system settings // or not. If the user did it, we should respect the will. UINT systemSpeed; if (!::SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &systemSpeed, 0)) { return NS_ERROR_FAILURE; } // The default vertical scrolling speed is 3, this is defined on the document // of SystemParametersInfo in MSDN. if (systemSpeed != kSystemDefaultScrollingSpeed) { return NS_OK; } // Only Vista and later, Windows has the system setting of horizontal // scrolling by the mouse wheel. if (GetWindowsVersion() >= VISTA_VERSION) { if (!::SystemParametersInfo(SPI_GETWHEELSCROLLCHARS, 0, &systemSpeed, 0)) { return NS_ERROR_FAILURE; } // The default horizontal scrolling speed is 3, this is defined on the // document of SystemParametersInfo in MSDN. if (systemSpeed != kSystemDefaultScrollingSpeed) { return NS_OK; } } // Limit the overridden delta value from the system settings. The mouse // driver might accelerate the scrolling speed already. If so, we shouldn't // override the scrolling speed for preventing the unexpected high speed // scrolling. PRInt32 absDeltaLimit; rv = nsBaseWidget::OverrideSystemMouseScrollSpeed(kSystemDefaultScrollingSpeed, aIsHorizontal, absDeltaLimit); NS_ENSURE_SUCCESS(rv, rv); // If the given delta is larger than our computed limitation value, the delta // was accelerated by the mouse driver. So, we should do nothing here. if (absDeltaLimit <= absOriginDelta) { return NS_OK; } absComputedOverriddenDelta = NS_MIN(absComputedOverriddenDelta, absDeltaLimit); aOverriddenDelta = (aOriginalDelta > 0) ? absComputedOverriddenDelta : -absComputedOverriddenDelta; return NS_OK; } /************************************************************** ************************************************************** ** ** BLOCK: Moz Events ** ** Moz GUI event management. ** ************************************************************** **************************************************************/ /************************************************************** * * SECTION: Mozilla event initialization * * Helpers for initializing moz events. * **************************************************************/ // Event intialization MSG nsWindow::InitMSG(UINT aMessage, WPARAM wParam, LPARAM lParam) { MSG msg; msg.message = aMessage; msg.wParam = wParam; msg.lParam = lParam; return msg; } void nsWindow::InitEvent(nsGUIEvent& event, nsIntPoint* aPoint) { if (nsnull == aPoint) { // use the point from the event // get the message position in client coordinates if (mWnd != NULL) { DWORD pos = ::GetMessagePos(); POINT cpos; cpos.x = GET_X_LPARAM(pos); cpos.y = GET_Y_LPARAM(pos); ::ScreenToClient(mWnd, &cpos); event.refPoint.x = cpos.x; event.refPoint.y = cpos.y; } else { event.refPoint.x = 0; event.refPoint.y = 0; } } else { // use the point override if provided event.refPoint.x = aPoint->x; event.refPoint.y = aPoint->y; } event.time = ::GetMessageTime(); mLastPoint = event.refPoint; } /************************************************************** * * SECTION: Moz event dispatch helpers * * Helpers for dispatching different types of moz events. * **************************************************************/ // Main event dispatch. Invokes callback and ProcessEvent method on // Event Listener object. Part of nsIWidget. NS_IMETHODIMP nsWindow::DispatchEvent(nsGUIEvent* event, nsEventStatus & aStatus) { #ifdef WIDGET_DEBUG_OUTPUT debug_DumpEvent(stdout, event->widget, event, nsCAutoString("something"), (PRInt32) mWnd); #endif // WIDGET_DEBUG_OUTPUT aStatus = nsEventStatus_eIgnore; // skip processing of suppressed blur events if (event->message == NS_DEACTIVATE && BlurEventsSuppressed()) return NS_OK; // Top level windows can have a view attached which requires events be sent // to the underlying base window and the view. Added when we combined the // base chrome window with the main content child for nc client area (title // bar) rendering. if (mViewCallback) { // A subset of events are sent to the base xul window first switch(event->message) { // send to the base window (view mgr ignores these for the view) case NS_UISTATECHANGED: case NS_DESTROY: case NS_SETZLEVEL: case NS_XUL_CLOSE: case NS_MOVE: (*mEventCallback)(event); // web shell / xul window return NS_OK; // sent to the base window, then to the view case NS_SIZE: case NS_DEACTIVATE: case NS_ACTIVATE: case NS_SIZEMODE: (*mEventCallback)(event); // web shell / xul window break; }; // attached view events aStatus = (*mViewCallback)(event); } else if (mEventCallback) { aStatus = (*mEventCallback)(event); } // the window can be destroyed during processing of seemingly innocuous events like, say, // mousedowns due to the magic of scripting. mousedowns will return nsEventStatus_eIgnore, // which causes problems with the deleted window. therefore: if (mOnDestroyCalled) aStatus = nsEventStatus_eConsumeNoDefault; return NS_OK; } bool nsWindow::DispatchStandardEvent(PRUint32 aMsg) { nsGUIEvent event(true, aMsg, this); InitEvent(event); bool result = DispatchWindowEvent(&event); return result; } bool nsWindow::DispatchWindowEvent(nsGUIEvent* event) { nsEventStatus status; DispatchEvent(event, status); return ConvertStatus(status); } bool nsWindow::DispatchWindowEvent(nsGUIEvent* event, nsEventStatus &aStatus) { DispatchEvent(event, aStatus); return ConvertStatus(aStatus); } bool nsWindow::DispatchKeyEvent(PRUint32 aEventType, WORD aCharCode, const nsTArray* aAlternativeCharCodes, UINT aVirtualCharCode, const MSG *aMsg, const nsModifierKeyState &aModKeyState, PRUint32 aFlags) { UserActivity(); nsKeyEvent event(true, aEventType, this); nsIntPoint point(0, 0); InitEvent(event, &point); // this add ref's event.widget event.flags |= aFlags; event.charCode = aCharCode; if (aAlternativeCharCodes) event.alternativeCharCodes.AppendElements(*aAlternativeCharCodes); event.keyCode = aVirtualCharCode; #ifdef KE_DEBUG static cnt=0; PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("%d DispatchKE Type: %s charCode %d keyCode %d ", cnt++, NS_KEY_PRESS == aEventType ? "PRESS : (aEventType == NS_KEY_UP ? "Up" : "Down"), event.charCode, event.keyCode)); PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("Shift: %s Control %s Alt: %s \n", (mIsShiftDown ? "D" : "U"), (mIsControlDown ? "D" : "U"), (mIsAltDown ? "D" : "U"))); PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("[%c][%c][%c] <== [%c][%c][%c][ space bar ][%c][%c][%c]\n", IS_VK_DOWN(NS_VK_SHIFT) ? 'S' : ' ', IS_VK_DOWN(NS_VK_CONTROL) ? 'C' : ' ', IS_VK_DOWN(NS_VK_ALT) ? 'A' : ' ', IS_VK_DOWN(VK_LSHIFT) ? 'S' : ' ', IS_VK_DOWN(VK_LCONTROL) ? 'C' : ' ', IS_VK_DOWN(VK_LMENU) ? 'A' : ' ', IS_VK_DOWN(VK_RMENU) ? 'A' : ' ', IS_VK_DOWN(VK_RCONTROL) ? 'C' : ' ', IS_VK_DOWN(VK_RSHIFT) ? 'S' : ' ')); #endif event.isShift = aModKeyState.mIsShiftDown; event.isControl = aModKeyState.mIsControlDown; event.isMeta = false; event.isAlt = aModKeyState.mIsAltDown; NPEvent pluginEvent; if (aMsg && PluginHasFocus()) { pluginEvent.event = aMsg->message; pluginEvent.wParam = aMsg->wParam; pluginEvent.lParam = aMsg->lParam; event.pluginEvent = (void *)&pluginEvent; } bool result = DispatchWindowEvent(&event); return result; } bool nsWindow::DispatchCommandEvent(PRUint32 aEventCommand) { nsCOMPtr command; switch (aEventCommand) { case APPCOMMAND_BROWSER_BACKWARD: command = nsGkAtoms::Back; break; case APPCOMMAND_BROWSER_FORWARD: command = nsGkAtoms::Forward; break; case APPCOMMAND_BROWSER_REFRESH: command = nsGkAtoms::Reload; break; case APPCOMMAND_BROWSER_STOP: command = nsGkAtoms::Stop; break; case APPCOMMAND_BROWSER_SEARCH: command = nsGkAtoms::Search; break; case APPCOMMAND_BROWSER_FAVORITES: command = nsGkAtoms::Bookmarks; break; case APPCOMMAND_BROWSER_HOME: command = nsGkAtoms::Home; break; default: return false; } nsCommandEvent event(true, nsGkAtoms::onAppCommand, command, this); InitEvent(event); DispatchWindowEvent(&event); return true; } // Recursively dispatch synchronous paints for nsIWidget // descendants with invalidated rectangles. BOOL CALLBACK nsWindow::DispatchStarvedPaints(HWND aWnd, LPARAM aMsg) { LONG_PTR proc = ::GetWindowLongPtrW(aWnd, GWLP_WNDPROC); if (proc == (LONG_PTR)&nsWindow::WindowProc) { // its one of our windows so check to see if it has a // invalidated rect. If it does. Dispatch a synchronous // paint. if (GetUpdateRect(aWnd, NULL, FALSE)) VERIFY(::UpdateWindow(aWnd)); } return TRUE; } // Check for pending paints and dispatch any pending paint // messages for any nsIWidget which is a descendant of the // top-level window that *this* window is embedded within. // // Note: We do not dispatch pending paint messages for non // nsIWidget managed windows. void nsWindow::DispatchPendingEvents() { if (mPainting) { NS_WARNING("We were asked to dispatch pending events during painting, " "denying since that's unsafe."); return; } // We need to ensure that reflow events do not get starved. // At the same time, we don't want to recurse through here // as that would prevent us from dispatching starved paints. static int recursionBlocker = 0; if (recursionBlocker++ == 0) { NS_ProcessPendingEvents(nsnull, PR_MillisecondsToInterval(100)); --recursionBlocker; } // Quickly check to see if there are any // paint events pending. if (::GetQueueStatus(QS_PAINT)) { // Find the top level window. HWND topWnd = GetTopLevelHWND(mWnd); // Dispatch pending paints for topWnd and all its descendant windows. // Note: EnumChildWindows enumerates all descendant windows not just // the children (but not the window itself). nsWindow::DispatchStarvedPaints(topWnd, 0); ::EnumChildWindows(topWnd, nsWindow::DispatchStarvedPaints, 0); } } // Deal with plugin events bool nsWindow::DispatchPluginEvent(const MSG &aMsg) { if (!PluginHasFocus()) return false; nsPluginEvent event(true, NS_PLUGIN_INPUT_EVENT, this); nsIntPoint point(0, 0); InitEvent(event, &point); NPEvent pluginEvent; pluginEvent.event = aMsg.message; pluginEvent.wParam = aMsg.wParam; pluginEvent.lParam = aMsg.lParam; event.pluginEvent = (void *)&pluginEvent; event.retargetToFocusedDocument = true; return DispatchWindowEvent(&event); } bool nsWindow::DispatchPluginEvent(UINT aMessage, WPARAM aWParam, LPARAM aLParam, bool aDispatchPendingEvents) { bool ret = DispatchPluginEvent(InitMSG(aMessage, aWParam, aLParam)); if (aDispatchPendingEvents) { DispatchPendingEvents(); } return ret; } void nsWindow::RemoveMessageAndDispatchPluginEvent(UINT aFirstMsg, UINT aLastMsg, nsFakeCharMessage* aFakeCharMessage) { MSG msg; if (aFakeCharMessage) { if (aFirstMsg > WM_CHAR || aLastMsg < WM_CHAR) { return; } msg = aFakeCharMessage->GetCharMessage(mWnd); } else { ::GetMessageW(&msg, mWnd, aFirstMsg, aLastMsg); } DispatchPluginEvent(msg); } // Deal with all sort of mouse event bool nsWindow::DispatchMouseEvent(PRUint32 aEventType, WPARAM wParam, LPARAM lParam, bool aIsContextMenuKey, PRInt16 aButton, PRUint16 aInputSource) { bool result = false; UserActivity(); if (!mEventCallback) { return result; } switch (aEventType) { case NS_MOUSE_BUTTON_DOWN: CaptureMouse(true); break; // NS_MOUSE_MOVE and NS_MOUSE_EXIT are here because we need to make sure capture flag // isn't left on after a drag where we wouldn't see a button up message (see bug 324131). case NS_MOUSE_BUTTON_UP: case NS_MOUSE_MOVE: case NS_MOUSE_EXIT: if (!(wParam & (MK_LBUTTON | MK_MBUTTON | MK_RBUTTON)) && sIsInMouseCapture) CaptureMouse(false); break; default: break; } // switch nsIntPoint eventPoint; eventPoint.x = GET_X_LPARAM(lParam); eventPoint.y = GET_Y_LPARAM(lParam); nsMouseEvent event(true, aEventType, this, nsMouseEvent::eReal, aIsContextMenuKey ? nsMouseEvent::eContextMenuKey : nsMouseEvent::eNormal); if (aEventType == NS_CONTEXTMENU && aIsContextMenuKey) { nsIntPoint zero(0, 0); InitEvent(event, &zero); } else { InitEvent(event, &eventPoint); } event.isShift = IS_VK_DOWN(NS_VK_SHIFT); event.isControl = IS_VK_DOWN(NS_VK_CONTROL); event.isMeta = false; event.isAlt = IS_VK_DOWN(NS_VK_ALT); event.button = aButton; event.inputSource = aInputSource; nsIntPoint mpScreen = eventPoint + WidgetToScreenOffset(); // Suppress mouse moves caused by widget creation if (aEventType == NS_MOUSE_MOVE) { if ((sLastMouseMovePoint.x == mpScreen.x) && (sLastMouseMovePoint.y == mpScreen.y)) return result; sLastMouseMovePoint.x = mpScreen.x; sLastMouseMovePoint.y = mpScreen.y; } bool insideMovementThreshold = (abs(sLastMousePoint.x - eventPoint.x) < (short)::GetSystemMetrics(SM_CXDOUBLECLK)) && (abs(sLastMousePoint.y - eventPoint.y) < (short)::GetSystemMetrics(SM_CYDOUBLECLK)); BYTE eventButton; switch (aButton) { case nsMouseEvent::eLeftButton: eventButton = VK_LBUTTON; break; case nsMouseEvent::eMiddleButton: eventButton = VK_MBUTTON; break; case nsMouseEvent::eRightButton: eventButton = VK_RBUTTON; break; default: eventButton = 0; break; } // Doubleclicks are used to set the click count, then changed to mousedowns // We're going to time double-clicks from mouse *up* to next mouse *down* LONG curMsgTime = ::GetMessageTime(); if (aEventType == NS_MOUSE_DOUBLECLICK) { event.message = NS_MOUSE_BUTTON_DOWN; event.button = aButton; sLastClickCount = 2; } else if (aEventType == NS_MOUSE_BUTTON_UP) { // remember when this happened for the next mouse down sLastMousePoint.x = eventPoint.x; sLastMousePoint.y = eventPoint.y; sLastMouseButton = eventButton; } else if (aEventType == NS_MOUSE_BUTTON_DOWN) { // now look to see if we want to convert this to a double- or triple-click if (((curMsgTime - sLastMouseDownTime) < (LONG)::GetDoubleClickTime()) && insideMovementThreshold && eventButton == sLastMouseButton) { sLastClickCount ++; } else { // reset the click count, to count *this* click sLastClickCount = 1; } // Set last Click time on MouseDown only sLastMouseDownTime = curMsgTime; } else if (aEventType == NS_MOUSE_MOVE && !insideMovementThreshold) { sLastClickCount = 0; } else if (aEventType == NS_MOUSE_EXIT) { event.exit = IsTopLevelMouseExit(mWnd) ? nsMouseEvent::eTopLevel : nsMouseEvent::eChild; } else if (aEventType == NS_MOUSE_MOZHITTEST) { event.flags |= NS_EVENT_FLAG_ONLY_CHROME_DISPATCH; } event.clickCount = sLastClickCount; #ifdef NS_DEBUG_XX PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("Msg Time: %d Click Count: %d\n", curMsgTime, event.clickCount)); #endif NPEvent pluginEvent; switch (aEventType) { case NS_MOUSE_BUTTON_DOWN: switch (aButton) { case nsMouseEvent::eLeftButton: pluginEvent.event = WM_LBUTTONDOWN; break; case nsMouseEvent::eMiddleButton: pluginEvent.event = WM_MBUTTONDOWN; break; case nsMouseEvent::eRightButton: pluginEvent.event = WM_RBUTTONDOWN; break; default: break; } break; case NS_MOUSE_BUTTON_UP: switch (aButton) { case nsMouseEvent::eLeftButton: pluginEvent.event = WM_LBUTTONUP; break; case nsMouseEvent::eMiddleButton: pluginEvent.event = WM_MBUTTONUP; break; case nsMouseEvent::eRightButton: pluginEvent.event = WM_RBUTTONUP; break; default: break; } break; case NS_MOUSE_DOUBLECLICK: switch (aButton) { case nsMouseEvent::eLeftButton: pluginEvent.event = WM_LBUTTONDBLCLK; break; case nsMouseEvent::eMiddleButton: pluginEvent.event = WM_MBUTTONDBLCLK; break; case nsMouseEvent::eRightButton: pluginEvent.event = WM_RBUTTONDBLCLK; break; default: break; } break; case NS_MOUSE_MOVE: pluginEvent.event = WM_MOUSEMOVE; break; case NS_MOUSE_EXIT: pluginEvent.event = WM_MOUSELEAVE; break; default: pluginEvent.event = WM_NULL; break; } pluginEvent.wParam = wParam; // plugins NEED raw OS event flags! pluginEvent.lParam = lParam; event.pluginEvent = (void *)&pluginEvent; // call the event callback if (nsnull != mEventCallback) { if (nsToolkit::gMouseTrailer) nsToolkit::gMouseTrailer->Disable(); if (aEventType == NS_MOUSE_MOVE) { if (nsToolkit::gMouseTrailer && !sIsInMouseCapture) { nsToolkit::gMouseTrailer->SetMouseTrailerWindow(mWnd); } nsIntRect rect; GetBounds(rect); rect.x = 0; rect.y = 0; if (rect.Contains(event.refPoint)) { if (sCurrentWindow == NULL || sCurrentWindow != this) { if ((nsnull != sCurrentWindow) && (!sCurrentWindow->mInDtor)) { LPARAM pos = sCurrentWindow->lParamToClient(lParamToScreen(lParam)); sCurrentWindow->DispatchMouseEvent(NS_MOUSE_EXIT, wParam, pos, false, nsMouseEvent::eLeftButton, aInputSource); } sCurrentWindow = this; if (!mInDtor) { LPARAM pos = sCurrentWindow->lParamToClient(lParamToScreen(lParam)); sCurrentWindow->DispatchMouseEvent(NS_MOUSE_ENTER, wParam, pos, false, nsMouseEvent::eLeftButton, aInputSource); } } } } else if (aEventType == NS_MOUSE_EXIT) { if (sCurrentWindow == this) { sCurrentWindow = nsnull; } } result = DispatchWindowEvent(&event); if (nsToolkit::gMouseTrailer) nsToolkit::gMouseTrailer->Enable(); // Release the widget with NS_IF_RELEASE() just in case // the context menu key code in nsEventListenerManager::HandleEvent() // released it already. return result; } return result; } // Deal with accessibile event #ifdef ACCESSIBILITY nsAccessible* nsWindow::DispatchAccessibleEvent(PRUint32 aEventType) { if (nsnull == mEventCallback) { return nsnull; } nsAccessibleEvent event(true, aEventType, this); InitEvent(event, nsnull); event.isShift = IS_VK_DOWN(NS_VK_SHIFT); event.isControl = IS_VK_DOWN(NS_VK_CONTROL); event.isMeta = false; event.isAlt = IS_VK_DOWN(NS_VK_ALT); DispatchWindowEvent(&event); return event.mAccessible; } #endif bool nsWindow::DispatchFocusToTopLevelWindow(PRUint32 aEventType) { if (aEventType == NS_ACTIVATE) sJustGotActivate = false; sJustGotDeactivate = false; // retrive the toplevel window or dialog HWND curWnd = mWnd; HWND toplevelWnd = NULL; while (curWnd) { toplevelWnd = curWnd; nsWindow *win = GetNSWindowPtr(curWnd); if (win) { nsWindowType wintype; win->GetWindowType(wintype); if (wintype == eWindowType_toplevel || wintype == eWindowType_dialog) break; } curWnd = ::GetParent(curWnd); // Parent or owner (if has no parent) } if (toplevelWnd) { nsWindow *win = GetNSWindowPtr(toplevelWnd); if (win) return win->DispatchFocus(aEventType); } return false; } // Deal with focus messages bool nsWindow::DispatchFocus(PRUint32 aEventType) { // call the event callback if (mEventCallback) { nsGUIEvent event(true, aEventType, this); InitEvent(event); //focus and blur event should go to their base widget loc, not current mouse pos event.refPoint.x = 0; event.refPoint.y = 0; NPEvent pluginEvent; switch (aEventType) { case NS_ACTIVATE: pluginEvent.event = WM_SETFOCUS; break; case NS_DEACTIVATE: pluginEvent.event = WM_KILLFOCUS; break; case NS_PLUGIN_ACTIVATE: pluginEvent.event = WM_KILLFOCUS; break; default: break; } event.pluginEvent = (void *)&pluginEvent; return DispatchWindowEvent(&event); } return false; } bool nsWindow::IsTopLevelMouseExit(HWND aWnd) { DWORD pos = ::GetMessagePos(); POINT mp; mp.x = GET_X_LPARAM(pos); mp.y = GET_Y_LPARAM(pos); HWND mouseWnd = ::WindowFromPoint(mp); // GetTopLevelHWND will return a HWND for the window frame (which includes // the non-client area). If the mouse has moved into the non-client area, // we should treat it as a top-level exit. HWND mouseTopLevel = nsWindow::GetTopLevelHWND(mouseWnd); if (mouseWnd == mouseTopLevel) return true; return nsWindow::GetTopLevelHWND(aWnd) != mouseTopLevel; } bool nsWindow::BlurEventsSuppressed() { // are they suppressed in this window? if (mBlurSuppressLevel > 0) return true; // are they suppressed by any container widget? HWND parentWnd = ::GetParent(mWnd); if (parentWnd) { nsWindow *parent = GetNSWindowPtr(parentWnd); if (parent) return parent->BlurEventsSuppressed(); } return false; } // In some circumstances (opening dependent windows) it makes more sense // (and fixes a crash bug) to not blur the parent window. Called from // nsFilePicker. void nsWindow::SuppressBlurEvents(bool aSuppress) { if (aSuppress) ++mBlurSuppressLevel; // for this widget else { NS_ASSERTION(mBlurSuppressLevel > 0, "unbalanced blur event suppression"); if (mBlurSuppressLevel > 0) --mBlurSuppressLevel; } } bool nsWindow::ConvertStatus(nsEventStatus aStatus) { return aStatus == nsEventStatus_eConsumeNoDefault; } /************************************************************** * * SECTION: IPC * * IPC related helpers. * **************************************************************/ // static bool nsWindow::IsAsyncResponseEvent(UINT aMsg, LRESULT& aResult) { switch(aMsg) { case WM_SETFOCUS: case WM_KILLFOCUS: case WM_ENABLE: case WM_WINDOWPOSCHANGING: case WM_WINDOWPOSCHANGED: case WM_PARENTNOTIFY: case WM_ACTIVATEAPP: case WM_NCACTIVATE: case WM_ACTIVATE: case WM_CHILDACTIVATE: case WM_IME_SETCONTEXT: case WM_IME_NOTIFY: case WM_SHOWWINDOW: case WM_CANCELMODE: case WM_MOUSEACTIVATE: case WM_CONTEXTMENU: aResult = 0; return true; case WM_SETTINGCHANGE: case WM_SETCURSOR: return false; } #ifdef DEBUG char szBuf[200]; sprintf(szBuf, "An unhandled ISMEX_SEND message was received during spin loop! (%X)", aMsg); NS_WARNING(szBuf); #endif return false; } void nsWindow::IPCWindowProcHandler(UINT& msg, WPARAM& wParam, LPARAM& lParam) { NS_ASSERTION(!mozilla::ipc::SyncChannel::IsPumpingMessages(), "Failed to prevent a nonqueued message from running!"); // Modal UI being displayed in windowless plugins. if (mozilla::ipc::RPCChannel::IsSpinLoopActive() && (InSendMessageEx(NULL)&(ISMEX_REPLIED|ISMEX_SEND)) == ISMEX_SEND) { LRESULT res; if (IsAsyncResponseEvent(msg, res)) { ReplyMessage(res); } return; } // Handle certain sync plugin events sent to the parent which // trigger ipc calls that result in deadlocks. DWORD dwResult = 0; bool handled = false; switch(msg) { // Windowless flash sending WM_ACTIVATE events to the main window // via calls to ShowWindow. case WM_ACTIVATE: if (lParam != 0 && LOWORD(wParam) == WA_ACTIVE && IsWindow((HWND)lParam)) { // Check for Adobe Reader X sync activate message from their // helper window and ignore. Fixes an annoying focus problem. if ((InSendMessageEx(NULL)&(ISMEX_REPLIED|ISMEX_SEND)) == ISMEX_SEND) { PRUnichar szClass[10]; HWND focusWnd = (HWND)lParam; if (IsWindowVisible(focusWnd) && GetClassNameW(focusWnd, szClass, sizeof(szClass)/sizeof(PRUnichar)) && !wcscmp(szClass, L"Edit") && !IsOurProcessWindow(focusWnd)) { break; } } handled = true; } break; // Plugins taking or losing focus triggering focus app messages. case WM_SETFOCUS: case WM_KILLFOCUS: // Windowed plugins that pass sys key events to defwndproc generate // WM_SYSCOMMAND events to the main window. case WM_SYSCOMMAND: // Windowed plugins that fire context menu selection events to parent // windows. case WM_CONTEXTMENU: // IME events fired as a result of synchronous focus changes case WM_IME_SETCONTEXT: handled = true; break; } if (handled && (InSendMessageEx(NULL)&(ISMEX_REPLIED|ISMEX_SEND)) == ISMEX_SEND) { ReplyMessage(dwResult); } } /************************************************************** ************************************************************** ** ** BLOCK: Native events ** ** Main Windows message handlers and OnXXX handlers for ** Windows event handling. ** ************************************************************** **************************************************************/ /************************************************************** * * SECTION: Wind proc. * * The main Windows event procedures and associated * message processing methods. * **************************************************************/ static bool DisplaySystemMenu(HWND hWnd, nsSizeMode sizeMode, bool isRtl, PRInt32 x, PRInt32 y) { HMENU hMenu = GetSystemMenu(hWnd, FALSE); if (hMenu) { MENUITEMINFO mii; mii.cbSize = sizeof(MENUITEMINFO); mii.fMask = MIIM_STATE; mii.fType = 0; // update the options mii.fState = MF_ENABLED; SetMenuItemInfo(hMenu, SC_RESTORE, FALSE, &mii); SetMenuItemInfo(hMenu, SC_SIZE, FALSE, &mii); SetMenuItemInfo(hMenu, SC_MOVE, FALSE, &mii); SetMenuItemInfo(hMenu, SC_MAXIMIZE, FALSE, &mii); SetMenuItemInfo(hMenu, SC_MINIMIZE, FALSE, &mii); mii.fState = MF_GRAYED; switch(sizeMode) { case nsSizeMode_Fullscreen: SetMenuItemInfo(hMenu, SC_RESTORE, FALSE, &mii); // intentional fall through case nsSizeMode_Maximized: SetMenuItemInfo(hMenu, SC_SIZE, FALSE, &mii); SetMenuItemInfo(hMenu, SC_MOVE, FALSE, &mii); SetMenuItemInfo(hMenu, SC_MAXIMIZE, FALSE, &mii); break; case nsSizeMode_Minimized: SetMenuItemInfo(hMenu, SC_MINIMIZE, FALSE, &mii); break; case nsSizeMode_Normal: SetMenuItemInfo(hMenu, SC_RESTORE, FALSE, &mii); break; } LPARAM cmd = TrackPopupMenu(hMenu, (TPM_LEFTBUTTON|TPM_RIGHTBUTTON| TPM_RETURNCMD|TPM_TOPALIGN| (isRtl ? TPM_RIGHTALIGN : TPM_LEFTALIGN)), x, y, 0, hWnd, NULL); if (cmd) { PostMessage(hWnd, WM_SYSCOMMAND, cmd, 0); return true; } } return false; } // The WndProc procedure for all nsWindows in this toolkit. This merely catches // exceptions and passes the real work to WindowProcInternal. See bug 587406 // and http://msdn.microsoft.com/en-us/library/ms633573%28VS.85%29.aspx LRESULT CALLBACK nsWindow::WindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) { return mozilla::CallWindowProcCrashProtected(WindowProcInternal, hWnd, msg, wParam, lParam); } LRESULT CALLBACK nsWindow::WindowProcInternal(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) { NS_TIME_FUNCTION_MIN_FMT(5.0, "%s (line %d) (hWnd: %p, msg: %p, wParam: %p, lParam: %p", MOZ_FUNCTION_NAME, __LINE__, hWnd, msg, wParam, lParam); if (::GetWindowLongPtrW(hWnd, GWLP_ID) == eFakeTrackPointScrollableID) { // This message was sent to the FAKETRACKPOINTSCROLLABLE. if (msg == WM_HSCROLL) { // Route WM_HSCROLL messages to the main window. hWnd = ::GetParent(::GetParent(hWnd)); } else { // Handle all other messages with its original window procedure. WNDPROC prevWindowProc = (WNDPROC)::GetWindowLongPtr(hWnd, GWLP_USERDATA); return ::CallWindowProcW(prevWindowProc, hWnd, msg, wParam, lParam); } } if (msg == MOZ_WM_TRACE) { // This is a tracer event for measuring event loop latency. // See WidgetTraceEvent.cpp for more details. mozilla::SignalTracerThread(); return 0; } // Get the window which caused the event and ask it to process the message nsWindow *someWindow = GetNSWindowPtr(hWnd); if (someWindow) someWindow->IPCWindowProcHandler(msg, wParam, lParam); // create this here so that we store the last rolled up popup until after // the event has been processed. nsAutoRollup autoRollup; LRESULT popupHandlingResult; if (DealWithPopups(hWnd, msg, wParam, lParam, &popupHandlingResult)) return popupHandlingResult; // XXX This fixes 50208 and we are leaving 51174 open to further investigate // why we are hitting this assert if (nsnull == someWindow) { NS_ASSERTION(someWindow, "someWindow is null, cannot call any CallWindowProc"); return ::DefWindowProcW(hWnd, msg, wParam, lParam); } // hold on to the window for the life of this method, in case it gets // deleted during processing. yes, it's a double hack, since someWindow // is not really an interface. nsCOMPtr kungFuDeathGrip; if (!someWindow->mInDtor) // not if we're in the destructor! kungFuDeathGrip = do_QueryInterface((nsBaseWidget*)someWindow); // Call ProcessMessage LRESULT retValue; if (true == someWindow->ProcessMessage(msg, wParam, lParam, &retValue)) { return retValue; } LRESULT res = ::CallWindowProcW(someWindow->GetPrevWindowProc(), hWnd, msg, wParam, lParam); return res; } // The main windows message processing method for plugins. // The result means whether this method processed the native // event for plugin. If false, the native event should be // processed by the caller self. bool nsWindow::ProcessMessageForPlugin(const MSG &aMsg, LRESULT *aResult, bool &aCallDefWndProc) { NS_PRECONDITION(aResult, "aResult must be non-null."); *aResult = 0; aCallDefWndProc = false; bool eventDispatched = false; switch (aMsg.message) { case WM_CHAR: case WM_SYSCHAR: *aResult = ProcessCharMessage(aMsg, &eventDispatched); break; case WM_KEYUP: case WM_SYSKEYUP: *aResult = ProcessKeyUpMessage(aMsg, &eventDispatched); break; case WM_KEYDOWN: case WM_SYSKEYDOWN: *aResult = ProcessKeyDownMessage(aMsg, &eventDispatched); break; case WM_DEADCHAR: case WM_SYSDEADCHAR: case WM_CUT: case WM_COPY: case WM_PASTE: case WM_CLEAR: case WM_UNDO: break; default: return false; } if (!eventDispatched) aCallDefWndProc = !DispatchPluginEvent(aMsg); DispatchPendingEvents(); return true; } static void ForceFontUpdate() { // update device context font cache // Dirty but easiest way: // Changing nsIPrefBranch entry which triggers callbacks // and flows into calling mDeviceContext->FlushFontCache() // to update the font cache in all the instance of Browsers static const char kPrefName[] = "font.internaluseonly.changed"; bool fontInternalChange = Preferences::GetBool(kPrefName, false); Preferences::SetBool(kPrefName, !fontInternalChange); } static bool CleartypeSettingChanged() { static int currentQuality = -1; BYTE quality = cairo_win32_get_system_text_quality(); if (currentQuality == quality) return false; if (currentQuality < 0) { currentQuality = quality; return false; } currentQuality = quality; return true; } // The main windows message processing method. bool nsWindow::ProcessMessage(UINT msg, WPARAM &wParam, LPARAM &lParam, LRESULT *aRetValue) { // For the Elantech Touchpad Zoom Gesture Hack, we should check that the // system time (32-bit milliseconds) hasn't wrapped around. Otherwise we // might get into the situation where wheel events for the next 50 days of // system uptime are assumed to be Ctrl+Wheel events. (It is unlikely that // we would get into that state, because the system would already need to be // up for 50 days and the Control key message would need to be processed just // before the system time overflow and the wheel message just after.) // // We also take the chance to reset mAssumeWheelIsZoomUntil if we simply have // passed that time. if (mAssumeWheelIsZoomUntil) { LONG msgTime = ::GetMessageTime(); if ((mAssumeWheelIsZoomUntil >= 0x3fffffffu && DWORD(msgTime) < 0x40000000u) || (mAssumeWheelIsZoomUntil < DWORD(msgTime))) { mAssumeWheelIsZoomUntil = 0; } } // (Large blocks of code should be broken out into OnEvent handlers.) if (mWindowHook.Notify(mWnd, msg, wParam, lParam, aRetValue)) return true; #if defined(EVENT_DEBUG_OUTPUT) // First param shows all events, second param indicates whether // to show mouse move events. See nsWindowDbg for details. PrintEvent(msg, SHOW_REPEAT_EVENTS, SHOW_MOUSEMOVE_EVENTS); #endif bool eatMessage; if (nsIMM32Handler::ProcessMessage(this, msg, wParam, lParam, aRetValue, eatMessage)) { return mWnd ? eatMessage : true; } if (PluginHasFocus()) { bool callDefaultWndProc; MSG nativeMsg = InitMSG(msg, wParam, lParam); if (ProcessMessageForPlugin(nativeMsg, aRetValue, callDefaultWndProc)) { return mWnd ? !callDefaultWndProc : true; } } bool result = false; // call the default nsWindow proc *aRetValue = 0; #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN // Glass hit testing w/custom transparent margins LRESULT dwmHitResult; if (mCustomNonClient && nsUXThemeData::CheckForCompositor() && nsUXThemeData::dwmDwmDefWindowProcPtr(mWnd, msg, wParam, lParam, &dwmHitResult)) { *aRetValue = dwmHitResult; return true; } #endif // MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN switch (msg) { // WM_QUERYENDSESSION must be handled by all windows. // Otherwise Windows thinks the window can just be killed at will. case WM_QUERYENDSESSION: if (sCanQuit == TRI_UNKNOWN) { // Ask if it's ok to quit, and store the answer until we // get WM_ENDSESSION signaling the round is complete. nsCOMPtr obsServ = mozilla::services::GetObserverService(); nsCOMPtr cancelQuit = do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID); cancelQuit->SetData(false); obsServ->NotifyObservers(cancelQuit, "quit-application-requested", nsnull); bool abortQuit; cancelQuit->GetData(&abortQuit); sCanQuit = abortQuit ? TRI_FALSE : TRI_TRUE; } *aRetValue = sCanQuit ? TRUE : FALSE; result = true; break; case WM_ENDSESSION: case MOZ_WM_APP_QUIT: if (msg == MOZ_WM_APP_QUIT || (wParam == TRUE && sCanQuit == TRI_TRUE)) { // Let's fake a shutdown sequence without actually closing windows etc. // to avoid Windows killing us in the middle. A proper shutdown would // require having a chance to pump some messages. Unfortunately // Windows won't let us do that. Bug 212316. nsCOMPtr obsServ = mozilla::services::GetObserverService(); NS_NAMED_LITERAL_STRING(context, "shutdown-persist"); obsServ->NotifyObservers(nsnull, "quit-application-granted", nsnull); obsServ->NotifyObservers(nsnull, "quit-application-forced", nsnull); obsServ->NotifyObservers(nsnull, "quit-application", nsnull); obsServ->NotifyObservers(nsnull, "profile-change-net-teardown", context.get()); obsServ->NotifyObservers(nsnull, "profile-change-teardown", context.get()); obsServ->NotifyObservers(nsnull, "profile-before-change", context.get()); // Then a controlled but very quick exit. _exit(0); } sCanQuit = TRI_UNKNOWN; result = true; break; case WM_DISPLAYCHANGE: DispatchStandardEvent(NS_DISPLAYCHANGED); break; case WM_SYSCOLORCHANGE: OnSysColorChanged(); break; case WM_NOTIFY: // TAB change { LPNMHDR pnmh = (LPNMHDR) lParam; switch (pnmh->code) { case TCN_SELCHANGE: { DispatchStandardEvent(NS_TABCHANGE); result = true; } break; } } break; case WM_THEMECHANGED: { // Update non-client margin offsets UpdateNonClientMargins(); nsUXThemeData::InitTitlebarInfo(); nsUXThemeData::UpdateNativeThemeInfo(); DispatchStandardEvent(NS_THEMECHANGED); // Invalidate the window so that the repaint will // pick up the new theme. Invalidate(true, true, true, true); } break; case WM_FONTCHANGE: { nsresult rv; bool didChange = false; // update the global font list nsCOMPtr fontEnum = do_GetService("@mozilla.org/gfx/fontenumerator;1", &rv); if (NS_SUCCEEDED(rv)) { fontEnum->UpdateFontList(&didChange); //didChange is TRUE only if new font langGroup is added to the list. if (didChange) { ForceFontUpdate(); } } //if (NS_SUCCEEDED(rv)) } break; case WM_NCCALCSIZE: { // If wParam is TRUE, it specifies that the application should indicate // which part of the client area contains valid information. The system // copies the valid information to the specified area within the new // client area. If the wParam parameter is FALSE, the application should // return zero. if (mCustomNonClient) { if (!wParam) { result = true; *aRetValue = 0; break; } // before: // rgrc[0]: the proposed window // rgrc[1]: the current window // rgrc[2]: the source client area // pncsp->lppos: move/size data // after: // rgrc[0]: the new client area // rgrc[1]: the destination window // rgrc[2]: the source client area // (all values in screen coordiantes) NCCALCSIZE_PARAMS *pncsp = reinterpret_cast(lParam); LRESULT res = CallWindowProcW(GetPrevWindowProc(), mWnd, msg, wParam, lParam); pncsp->rgrc[0].top -= mNonClientOffset.top; pncsp->rgrc[0].left -= mNonClientOffset.left; pncsp->rgrc[0].right += mNonClientOffset.right; pncsp->rgrc[0].bottom += mNonClientOffset.bottom; result = true; *aRetValue = res; } break; } case WM_NCHITTEST: { /* * If an nc client area margin has been moved, we are responsible * for calculating where the resize margins are and returning the * appropriate set of hit test constants. DwmDefWindowProc (above) * will handle hit testing on it's command buttons if we are on a * composited desktop. */ if (!mCustomNonClient) break; *aRetValue = ClientMarginHitTestPoint(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); result = true; break; } case WM_SETTEXT: /* * WM_SETTEXT paints the titlebar area. Avoid this if we have a * custom titlebar we paint ourselves. */ if (!mCustomNonClient || mNonClientMargins.top == -1) break; { // From msdn, the way around this is to disable the visible state // temporarily. We need the text to be set but we don't want the // redraw to occur. DWORD style = GetWindowLong(mWnd, GWL_STYLE); SetWindowLong(mWnd, GWL_STYLE, style & ~WS_VISIBLE); *aRetValue = CallWindowProcW(GetPrevWindowProc(), mWnd, msg, wParam, lParam); SetWindowLong(mWnd, GWL_STYLE, style); return true; } case WM_NCACTIVATE: { /* * WM_NCACTIVATE paints nc areas. Avoid this and re-route painting * through WM_NCPAINT via InvalidateNonClientRegion. */ if (!mCustomNonClient) break; #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN // let the dwm handle nc painting on glass if(nsUXThemeData::CheckForCompositor()) break; #endif if (wParam == TRUE) { // going active *aRetValue = FALSE; // ignored result = true; UpdateGetWindowInfoCaptionStatus(true); // invalidate to trigger a paint InvalidateNonClientRegion(); break; } else { // going inactive *aRetValue = TRUE; // go ahead and deactive result = true; UpdateGetWindowInfoCaptionStatus(false); // invalidate to trigger a paint InvalidateNonClientRegion(); break; } } case WM_NCPAINT: { /* * Reset the non-client paint region so that it excludes the * non-client areas we paint manually. Then call defwndproc * to do the actual painting. */ if (!mCustomNonClient) break; #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN // let the dwm handle nc painting on glass if(nsUXThemeData::CheckForCompositor()) break; #endif HRGN paintRgn = ExcludeNonClientFromPaintRegion((HRGN)wParam); LRESULT res = CallWindowProcW(GetPrevWindowProc(), mWnd, msg, (WPARAM)paintRgn, lParam); if (paintRgn != (HRGN)wParam) DeleteObject(paintRgn); *aRetValue = res; result = true; } break; case WM_POWERBROADCAST: switch (wParam) { case PBT_APMSUSPEND: PostSleepWakeNotification(true); break; case PBT_APMRESUMEAUTOMATIC: case PBT_APMRESUMECRITICAL: case PBT_APMRESUMESUSPEND: PostSleepWakeNotification(false); break; } break; case WM_MOVE: // Window moved { RECT rect; ::GetWindowRect(mWnd, &rect); result = OnMove(rect.left, rect.top); } break; case WM_CLOSE: // close request DispatchStandardEvent(NS_XUL_CLOSE); result = true; // abort window closure break; case WM_DESTROY: // clean up. OnDestroy(); result = true; break; case WM_PAINT: if (CleartypeSettingChanged()) { ForceFontUpdate(); gfxFontCache *fc = gfxFontCache::GetCache(); if (fc) { fc->Flush(); } } *aRetValue = (int) OnPaint(NULL, 0); result = true; break; case WM_PRINTCLIENT: result = OnPaint((HDC) wParam, 0); break; case WM_HOTKEY: result = OnHotKey(wParam, lParam); break; case WM_SYSCHAR: case WM_CHAR: { MSG nativeMsg = InitMSG(msg, wParam, lParam); result = ProcessCharMessage(nativeMsg, nsnull); DispatchPendingEvents(); } break; case WM_SYSKEYUP: case WM_KEYUP: { MSG nativeMsg = InitMSG(msg, wParam, lParam); nativeMsg.time = ::GetMessageTime(); result = ProcessKeyUpMessage(nativeMsg, nsnull); DispatchPendingEvents(); } break; case WM_SYSKEYDOWN: case WM_KEYDOWN: { MSG nativeMsg = InitMSG(msg, wParam, lParam); result = ProcessKeyDownMessage(nativeMsg, nsnull); DispatchPendingEvents(); } break; // say we've dealt with erase background if widget does // not need auto-erasing case WM_ERASEBKGND: if (!AutoErase((HDC)wParam)) { *aRetValue = 1; result = true; } break; case WM_MOUSEMOVE: { mMousePresent = true; // Suppress dispatch of pending events // when mouse moves are generated by widget // creation instead of user input. LPARAM lParamScreen = lParamToScreen(lParam); POINT mp; mp.x = GET_X_LPARAM(lParamScreen); mp.y = GET_Y_LPARAM(lParamScreen); bool userMovedMouse = false; if ((sLastMouseMovePoint.x != mp.x) || (sLastMouseMovePoint.y != mp.y)) { userMovedMouse = true; } result = DispatchMouseEvent(NS_MOUSE_MOVE, wParam, lParam, false, nsMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); if (userMovedMouse) { DispatchPendingEvents(); } } break; case WM_NCMOUSEMOVE: // If we receive a mouse move event on non-client chrome, make sure and // send an NS_MOUSE_EXIT event as well. if (mMousePresent && !sIsInMouseCapture) SendMessage(mWnd, WM_MOUSELEAVE, 0, 0); break; case WM_LBUTTONDOWN: { result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, wParam, lParam, false, nsMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); } break; case WM_LBUTTONUP: { result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, wParam, lParam, false, nsMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); } break; case WM_MOUSELEAVE: { if (!mMousePresent) break; mMousePresent = false; // We need to check mouse button states and put them in for // wParam. WPARAM mouseState = (GetKeyState(VK_LBUTTON) ? MK_LBUTTON : 0) | (GetKeyState(VK_MBUTTON) ? MK_MBUTTON : 0) | (GetKeyState(VK_RBUTTON) ? MK_RBUTTON : 0); // Synthesize an event position because we don't get one from // WM_MOUSELEAVE. LPARAM pos = lParamToClient(::GetMessagePos()); DispatchMouseEvent(NS_MOUSE_EXIT, mouseState, pos, false, nsMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); } break; case WM_CONTEXTMENU: { // if the context menu is brought up from the keyboard, |lParam| // will be -1. LPARAM pos; bool contextMenukey = false; if (lParam == -1) { contextMenukey = true; pos = lParamToClient(GetMessagePos()); } else { pos = lParamToClient(lParam); } result = DispatchMouseEvent(NS_CONTEXTMENU, wParam, pos, contextMenukey, contextMenukey ? nsMouseEvent::eLeftButton : nsMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); if (lParam != -1 && !result && mCustomNonClient && DispatchMouseEvent(NS_MOUSE_MOZHITTEST, wParam, pos, false, nsMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE())) { // Blank area hit, throw up the system menu. DisplaySystemMenu(mWnd, mSizeMode, mIsRTL, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); result = true; } } break; case WM_LBUTTONDBLCLK: result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, wParam, lParam, false, nsMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_MBUTTONDOWN: result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, wParam, lParam, false, nsMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_MBUTTONUP: result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, wParam, lParam, false, nsMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_MBUTTONDBLCLK: result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, wParam, lParam, false, nsMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCMBUTTONDOWN: result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, 0, lParamToClient(lParam), false, nsMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCMBUTTONUP: result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, 0, lParamToClient(lParam), false, nsMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCMBUTTONDBLCLK: result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, 0, lParamToClient(lParam), false, nsMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_RBUTTONDOWN: result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, wParam, lParam, false, nsMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_RBUTTONUP: result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, wParam, lParam, false, nsMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_RBUTTONDBLCLK: result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, wParam, lParam, false, nsMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCRBUTTONDOWN: result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, 0, lParamToClient(lParam), false, nsMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCRBUTTONUP: result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, 0, lParamToClient(lParam), false, nsMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCRBUTTONDBLCLK: result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, 0, lParamToClient(lParam), false, nsMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_EXITSIZEMOVE: if (!sIsInMouseCapture) { DispatchStandardEvent(NS_DONESIZEMOVE); } break; case WM_NCLBUTTONDBLCLK: DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, 0, lParamToClient(lParam), false, nsMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, 0, lParamToClient(lParam), false, nsMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_APPCOMMAND: { PRUint32 appCommand = GET_APPCOMMAND_LPARAM(lParam); switch (appCommand) { case APPCOMMAND_BROWSER_BACKWARD: case APPCOMMAND_BROWSER_FORWARD: case APPCOMMAND_BROWSER_REFRESH: case APPCOMMAND_BROWSER_STOP: case APPCOMMAND_BROWSER_SEARCH: case APPCOMMAND_BROWSER_FAVORITES: case APPCOMMAND_BROWSER_HOME: DispatchCommandEvent(appCommand); // tell the driver that we handled the event *aRetValue = 1; result = true; break; } // default = false - tell the driver that the event was not handled } break; case WM_HSCROLL: case WM_VSCROLL: *aRetValue = 0; result = OnScroll(msg, wParam, lParam); break; case MOZ_WM_HSCROLL: case MOZ_WM_VSCROLL: *aRetValue = 0; OnScrollInternal(GetNativeMessage(msg), wParam, lParam); // Doesn't need to call next wndproc for internal message. return true; // The WM_ACTIVATE event is fired when a window is raised or lowered, // and the loword of wParam specifies which. But we don't want to tell // the focus system about this until the WM_SETFOCUS or WM_KILLFOCUS // events are fired. Instead, set either the sJustGotActivate or // gJustGotDeativate flags and fire the NS_ACTIVATE or NS_DEACTIVATE // events once the focus events arrive. case WM_ACTIVATE: if (mEventCallback) { PRInt32 fActive = LOWORD(wParam); if (WA_INACTIVE == fActive) { // when minimizing a window, the deactivation and focus events will // be fired in the reverse order. Instead, just dispatch // NS_DEACTIVATE right away. if (HIWORD(wParam)) result = DispatchFocusToTopLevelWindow(NS_DEACTIVATE); else sJustGotDeactivate = true; if (mIsTopWidgetWindow) mLastKeyboardLayout = gKbdLayout.GetLayout(); } else { StopFlashing(); sJustGotActivate = true; nsMouseEvent event(true, NS_MOUSE_ACTIVATE, this, nsMouseEvent::eReal); InitEvent(event); DispatchWindowEvent(&event); if (sSwitchKeyboardLayout && mLastKeyboardLayout) ActivateKeyboardLayout(mLastKeyboardLayout, 0); } } break; case WM_MOUSEACTIVATE: if (mWindowType == eWindowType_popup) { // a popup with a parent owner should not be activated when clicked // but should still allow the mouse event to be fired, so the return // value is set to MA_NOACTIVATE. But if the owner isn't the frontmost // window, just use default processing so that the window is activated. HWND owner = ::GetWindow(mWnd, GW_OWNER); if (owner && owner == ::GetForegroundWindow()) { *aRetValue = MA_NOACTIVATE; result = true; } } break; case WM_WINDOWPOSCHANGING: { LPWINDOWPOS info = (LPWINDOWPOS) lParam; OnWindowPosChanging(info); } break; case WM_SETFOCUS: // If previous focused window isn't ours, it must have received the // redirected message. So, we should forget it. if (!IsOurProcessWindow(HWND(wParam))) { ForgetRedirectedKeyDownMessage(); } if (sJustGotActivate) { result = DispatchFocusToTopLevelWindow(NS_ACTIVATE); } #ifdef ACCESSIBILITY if (nsWindow::sIsAccessibilityOn) { // Create it for the first time so that it can start firing events nsAccessible *rootAccessible = GetRootAccessible(); } #endif break; case WM_KILLFOCUS: if (sJustGotDeactivate || !wParam) { // Note: wParam is FALSE when the window has lost focus. Sometimes // We can receive WM_KILLFOCUS with !wParam while changing to // full-screen mode and we won't receive an WM_ACTIVATE/WA_INACTIVE // message, so inform the focus manager that we've lost focus now. result = DispatchFocusToTopLevelWindow(NS_DEACTIVATE); } break; case WM_WINDOWPOSCHANGED: { WINDOWPOS *wp = (LPWINDOWPOS)lParam; OnWindowPosChanged(wp, result); } break; case WM_SETTINGCHANGE: switch (wParam) { case SPI_SETWHEELSCROLLLINES: case SPI_SETWHEELSCROLLCHARS: sNeedsToInitMouseWheelSettings = true; break; } break; case WM_INPUTLANGCHANGEREQUEST: *aRetValue = TRUE; result = false; break; case WM_INPUTLANGCHANGE: result = OnInputLangChange((HKL)lParam); break; case WM_DESTROYCLIPBOARD: { nsIClipboard* clipboard; nsresult rv = CallGetService(kCClipboardCID, &clipboard); if(NS_SUCCEEDED(rv)) { clipboard->EmptyClipboard(nsIClipboard::kGlobalClipboard); NS_RELEASE(clipboard); } } break; #ifdef ACCESSIBILITY case WM_GETOBJECT: { *aRetValue = 0; // Do explicit casting to make it working on 64bit systems (see bug 649236 // for details). DWORD objId = static_cast(lParam); if (objId == OBJID_CLIENT) { // oleacc.dll will be loaded dynamically nsAccessible *rootAccessible = GetRootAccessible(); // Held by a11y cache if (rootAccessible) { IAccessible *msaaAccessible = NULL; rootAccessible->GetNativeInterface((void**)&msaaAccessible); // does an addref if (msaaAccessible) { *aRetValue = LresultFromObject(IID_IAccessible, wParam, msaaAccessible); // does an addref msaaAccessible->Release(); // release extra addref result = true; // We handled the WM_GETOBJECT message } } } } #endif case WM_SYSCOMMAND: { WPARAM filteredWParam = (wParam &0xFFF0); // prevent Windows from trimming the working set. bug 76831 if (!sTrimOnMinimize && filteredWParam == SC_MINIMIZE) { ::ShowWindow(mWnd, SW_SHOWMINIMIZED); result = true; } // Handle the system menu manually when we're in full screen mode // so we can set the appropriate options. if (filteredWParam == SC_KEYMENU && lParam == VK_SPACE && mSizeMode == nsSizeMode_Fullscreen) { DisplaySystemMenu(mWnd, mSizeMode, mIsRTL, MOZ_SYSCONTEXT_X_POS, MOZ_SYSCONTEXT_Y_POS); result = true; } } break; case WM_MOUSEWHEEL: case WM_MOUSEHWHEEL: OnMouseWheel(msg, wParam, lParam, aRetValue); // We don't need to call next wndproc WM_MOUSEWHEEL and WM_MOUSEHWHEEL. // We should consume them always. If the messages would be handled by // our window again, it causes making infinite message loop. return true; case MOZ_WM_MOUSEVWHEEL: case MOZ_WM_MOUSEHWHEEL: { UINT nativeMessage = GetNativeMessage(msg); // If OnMouseWheel returns true, the event was forwarded directly to another // mozilla window message handler (ProcessMessage). In this case the return // value of the forwarded event is in 'result' which we should return immediately. // If OnMouseWheel returns false, OnMouseWheel processed the event internally. // 'result' and 'aRetValue' will be set based on what we did with the event, so // we should fall through. OnMouseWheelInternal(nativeMessage, wParam, lParam, aRetValue); // Doesn't need to call next wndproc for internal message. return true; } #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN case WM_DWMCOMPOSITIONCHANGED: // First, update the compositor state to latest one. All other methods // should use same state as here for consistency painting. nsUXThemeData::CheckForCompositor(true); UpdateNonClientMargins(); RemovePropW(mWnd, kManageWindowInfoProperty); BroadcastMsg(mWnd, WM_DWMCOMPOSITIONCHANGED); DispatchStandardEvent(NS_THEMECHANGED); UpdateGlass(); Invalidate(true, true, true, true); break; #endif case WM_UPDATEUISTATE: { // If the UI state has changed, fire an event so the UI updates the // keyboard cues based on the system setting and how the window was // opened. For example, a dialog opened via a keyboard press on a button // should enable cues, whereas the same dialog opened via a mouse click of // the button should not. PRInt32 action = LOWORD(wParam); if (action == UIS_SET || action == UIS_CLEAR) { nsUIStateChangeEvent event(true, NS_UISTATECHANGED, this); PRInt32 flags = HIWORD(wParam); if (flags & UISF_HIDEACCEL) event.showAccelerators = (action == UIS_SET) ? UIStateChangeType_Clear : UIStateChangeType_Set; if (flags & UISF_HIDEFOCUS) event.showFocusRings = (action == UIS_SET) ? UIStateChangeType_Clear : UIStateChangeType_Set; DispatchWindowEvent(&event); } break; } /* Gesture support events */ case WM_TABLET_QUERYSYSTEMGESTURESTATUS: // According to MS samples, this must be handled to enable // rotational support in multi-touch drivers. result = true; *aRetValue = TABLET_ROTATE_GESTURE_ENABLE; break; #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7 case WM_TOUCH: result = OnTouch(wParam, lParam); if (result) { *aRetValue = 0; } break; #endif case WM_GESTURE: result = OnGesture(wParam, lParam); break; case WM_GESTURENOTIFY: { if (mWindowType != eWindowType_invisible && mWindowType != eWindowType_plugin) { // A GestureNotify event is dispatched to decide which single-finger panning // direction should be active (including none) and if pan feedback should // be displayed. Java and plugin windows can make their own calls. GESTURENOTIFYSTRUCT * gestureinfo = (GESTURENOTIFYSTRUCT*)lParam; nsPointWin touchPoint; touchPoint = gestureinfo->ptsLocation; touchPoint.ScreenToClient(mWnd); nsGestureNotifyEvent gestureNotifyEvent(true, NS_GESTURENOTIFY_EVENT_START, this); gestureNotifyEvent.refPoint = touchPoint; nsEventStatus status; DispatchEvent(&gestureNotifyEvent, status); mDisplayPanFeedback = gestureNotifyEvent.displayPanFeedback; if (!mTouchWindow) mGesture.SetWinGestureSupport(mWnd, gestureNotifyEvent.panDirection); } result = false; //should always bubble to DefWindowProc } break; case WM_CLEAR: { nsContentCommandEvent command(true, NS_CONTENT_COMMAND_DELETE, this); DispatchWindowEvent(&command); result = true; } break; case WM_CUT: { nsContentCommandEvent command(true, NS_CONTENT_COMMAND_CUT, this); DispatchWindowEvent(&command); result = true; } break; case WM_COPY: { nsContentCommandEvent command(true, NS_CONTENT_COMMAND_COPY, this); DispatchWindowEvent(&command); result = true; } break; case WM_PASTE: { nsContentCommandEvent command(true, NS_CONTENT_COMMAND_PASTE, this); DispatchWindowEvent(&command); result = true; } break; case EM_UNDO: { nsContentCommandEvent command(true, NS_CONTENT_COMMAND_UNDO, this); DispatchWindowEvent(&command); *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled); result = true; } break; case EM_REDO: { nsContentCommandEvent command(true, NS_CONTENT_COMMAND_REDO, this); DispatchWindowEvent(&command); *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled); result = true; } break; case EM_CANPASTE: { // Support EM_CANPASTE message only when wParam isn't specified or // is plain text format. if (wParam == 0 || wParam == CF_TEXT || wParam == CF_UNICODETEXT) { nsContentCommandEvent command(true, NS_CONTENT_COMMAND_PASTE, this, true); DispatchWindowEvent(&command); *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled); result = true; } } break; case EM_CANUNDO: { nsContentCommandEvent command(true, NS_CONTENT_COMMAND_UNDO, this, true); DispatchWindowEvent(&command); *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled); result = true; } break; case EM_CANREDO: { nsContentCommandEvent command(true, NS_CONTENT_COMMAND_REDO, this, true); DispatchWindowEvent(&command); *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled); result = true; } break; default: { #ifdef NS_ENABLE_TSF if (msg == WM_USER_TSF_TEXTCHANGE) { nsTextStore::OnTextChangeMsg(); } #endif //NS_ENABLE_TSF #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7 if (msg == nsAppShell::GetTaskbarButtonCreatedMessage()) SetHasTaskbarIconBeenCreated(); #endif if (msg == sOOPPPluginFocusEvent) { if (wParam == 1) { // With OOPP, the plugin window exists in another process and is a child of // this window. This window is a placeholder plugin window for the dom. We // receive this event when the child window receives focus. (sent from // PluginInstanceParent.cpp) ::SendMessage(mWnd, WM_MOUSEACTIVATE, 0, 0); // See nsPluginNativeWindowWin.cpp } else { // WM_KILLFOCUS was received by the child process. if (sJustGotDeactivate) { DispatchFocusToTopLevelWindow(NS_DEACTIVATE); } } } } break; } //*aRetValue = result; if (mWnd) { return result; } else { //Events which caused mWnd destruction and aren't consumed //will crash during the Windows default processing. return true; } } /************************************************************** * * SECTION: Broadcast messaging * * Broadcast messages to all windows. * **************************************************************/ // Enumerate all child windows sending aMsg to each of them BOOL CALLBACK nsWindow::BroadcastMsgToChildren(HWND aWnd, LPARAM aMsg) { WNDPROC winProc = (WNDPROC)::GetWindowLongPtrW(aWnd, GWLP_WNDPROC); if (winProc == &nsWindow::WindowProc) { // it's one of our windows so go ahead and send a message to it ::CallWindowProcW(winProc, aWnd, aMsg, 0, 0); } return TRUE; } // Enumerate all top level windows specifying that the children of each // top level window should be enumerated. Do *not* send the message to // each top level window since it is assumed that the toolkit will send // aMsg to them directly. BOOL CALLBACK nsWindow::BroadcastMsg(HWND aTopWindow, LPARAM aMsg) { // Iterate each of aTopWindows child windows sending the aMsg // to each of them. ::EnumChildWindows(aTopWindow, nsWindow::BroadcastMsgToChildren, aMsg); return TRUE; } /************************************************************** * * SECTION: Event processing helpers * * Special processing for certain event types and * synthesized events. * **************************************************************/ PRInt32 nsWindow::ClientMarginHitTestPoint(PRInt32 mx, PRInt32 my) { // Calculations are done in screen coords RECT winRect; GetWindowRect(mWnd, &winRect); // hit return constants: // HTBORDER - non-resizable border // HTBOTTOM, HTLEFT, HTRIGHT, HTTOP - resizable border // HTBOTTOMLEFT, HTBOTTOMRIGHT - resizable corner // HTTOPLEFT, HTTOPRIGHT - resizable corner // HTCAPTION - general title bar area // HTCLIENT - area considered the client // HTCLOSE - hovering over the close button // HTMAXBUTTON - maximize button // HTMINBUTTON - minimize button PRInt32 testResult = HTCLIENT; bool top = false; bool bottom = false; bool left = false; bool right = false; if (my >= winRect.top && my < (winRect.top + mVertResizeMargin + (mCaptionHeight - mNonClientOffset.top))) top = true; else if (my < winRect.bottom && my >= (winRect.bottom - mVertResizeMargin)) bottom = true; if (mx >= winRect.left && mx < (winRect.left + (bottom ? (2*mHorResizeMargin) : mHorResizeMargin))) left = true; else if (mx < winRect.right && mx >= (winRect.right - (bottom ? (2*mHorResizeMargin) : mHorResizeMargin))) right = true; if (top) { testResult = HTTOP; if (left) testResult = HTTOPLEFT; else if (right) testResult = HTTOPRIGHT; } else if (bottom) { testResult = HTBOTTOM; if (left) testResult = HTBOTTOMLEFT; else if (right) testResult = HTBOTTOMRIGHT; } else { if (left) testResult = HTLEFT; if (right) testResult = HTRIGHT; } bool contentOverlap = true; if (mSizeMode == nsSizeMode_Maximized) { // There's no HTTOP in maximized state (bug 575493) if (testResult == HTTOP) { testResult = HTCAPTION; } } else { PRInt32 leftMargin = mNonClientMargins.left == -1 ? mHorResizeMargin : mNonClientMargins.left; PRInt32 rightMargin = mNonClientMargins.right == -1 ? mHorResizeMargin : mNonClientMargins.right; PRInt32 topMargin = mNonClientMargins.top == -1 ? mVertResizeMargin : mNonClientMargins.top; PRInt32 bottomMargin = mNonClientMargins.bottom == -1 ? mVertResizeMargin : mNonClientMargins.bottom; contentOverlap = mx >= winRect.left + leftMargin && mx <= winRect.right - rightMargin && my >= winRect.top + topMargin && my <= winRect.bottom - bottomMargin; } if (!sIsInMouseCapture && contentOverlap && (testResult == HTCLIENT || testResult == HTTOP || testResult == HTTOPLEFT || testResult == HTCAPTION)) { LPARAM lParam = MAKELPARAM(mx, my); LPARAM lParamClient = lParamToClient(lParam); bool result = DispatchMouseEvent(NS_MOUSE_MOZHITTEST, 0, lParamClient, false, nsMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); if (result) { // The mouse is over a blank area testResult = testResult == HTCLIENT ? HTCAPTION : testResult; } else { // There's content over the mouse pointer. Set HTCLIENT // to possibly override a resizer border. testResult = HTCLIENT; } } return testResult; } void nsWindow::PostSleepWakeNotification(const bool aIsSleepMode) { if (aIsSleepMode == gIsSleepMode) return; gIsSleepMode = aIsSleepMode; nsCOMPtr observerService = mozilla::services::GetObserverService(); if (observerService) observerService->NotifyObservers(nsnull, aIsSleepMode ? "sleep_notification" : "wake_notification", nsnull); } // RemoveNextCharMessage() should be called by WM_KEYDOWN or WM_SYSKEYDOWM // message handler. If there is no WM_(SYS)CHAR message for it, this // method does nothing. // NOTE: WM_(SYS)CHAR message is posted by TranslateMessage() API which is // called in message loop. So, WM_(SYS)KEYDOWN message should have // WM_(SYS)CHAR message in the queue if the keydown event causes character // input. /* static */ void nsWindow::RemoveNextCharMessage(HWND aWnd) { MSG msg; if (::PeekMessageW(&msg, aWnd, WM_KEYFIRST, WM_KEYLAST, PM_NOREMOVE | PM_NOYIELD) && (msg.message == WM_CHAR || msg.message == WM_SYSCHAR)) { ::GetMessageW(&msg, aWnd, msg.message, msg.message); } } LRESULT nsWindow::ProcessCharMessage(const MSG &aMsg, bool *aEventDispatched) { NS_PRECONDITION(aMsg.message == WM_CHAR || aMsg.message == WM_SYSCHAR, "message is not keydown event"); PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("%s charCode=%d scanCode=%d\n", aMsg.message == WM_SYSCHAR ? "WM_SYSCHAR" : "WM_CHAR", aMsg.wParam, HIWORD(aMsg.lParam) & 0xFF)); // These must be checked here too as a lone WM_CHAR could be received // if a child window didn't handle it (for example Alt+Space in a content window) nsModifierKeyState modKeyState; return OnChar(aMsg, modKeyState, aEventDispatched); } LRESULT nsWindow::ProcessKeyUpMessage(const MSG &aMsg, bool *aEventDispatched) { NS_PRECONDITION(aMsg.message == WM_KEYUP || aMsg.message == WM_SYSKEYUP, "message is not keydown event"); PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("%s VK=%d\n", aMsg.message == WM_SYSKEYDOWN ? "WM_SYSKEYUP" : "WM_KEYUP", aMsg.wParam)); nsModifierKeyState modKeyState; // Note: the original code passed (HIWORD(lParam)) to OnKeyUp as // scan code. However, this breaks Alt+Num pad input. // MSDN states the following: // Typically, ToAscii performs the translation based on the // virtual-key code. In some cases, however, bit 15 of the // uScanCode parameter may be used to distinguish between a key // press and a key release. The scan code is used for // translating ALT+number key combinations. // ignore [shift+]alt+space so the OS can handle it if (modKeyState.mIsAltDown && !modKeyState.mIsControlDown && IS_VK_DOWN(NS_VK_SPACE)) { return FALSE; } if (!nsIMM32Handler::IsComposingOn(this) && (aMsg.message != WM_KEYUP || aMsg.wParam != VK_MENU)) { // Ignore VK_MENU if it's not a system key release, so that the menu bar does not trigger // This helps avoid triggering the menu bar for ALT key accelerators used in // assistive technologies such as Window-Eyes and ZoomText, and when using Alt+Tab // to switch back to Mozilla in Windows 95 and Windows 98 return OnKeyUp(aMsg, modKeyState, aEventDispatched); } return 0; } LRESULT nsWindow::ProcessKeyDownMessage(const MSG &aMsg, bool *aEventDispatched) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("%s VK=%d\n", aMsg.message == WM_SYSKEYDOWN ? "WM_SYSKEYDOWN" : "WM_KEYDOWN", aMsg.wParam)); NS_PRECONDITION(aMsg.message == WM_KEYDOWN || aMsg.message == WM_SYSKEYDOWN, "message is not keydown event"); // If this method doesn't call OnKeyDown(), this method must clean up the // redirected message information itself. For more information, see above // comment of AutoForgetRedirectedKeyDownMessage struct definition in // nsWindow.h. AutoForgetRedirectedKeyDownMessage forgetRedirectedMessage(this, aMsg); nsModifierKeyState modKeyState; // Note: the original code passed (HIWORD(lParam)) to OnKeyDown as // scan code. However, this breaks Alt+Num pad input. // MSDN states the following: // Typically, ToAscii performs the translation based on the // virtual-key code. In some cases, however, bit 15 of the // uScanCode parameter may be used to distinguish between a key // press and a key release. The scan code is used for // translating ALT+number key combinations. // ignore [shift+]alt+space so the OS can handle it if (modKeyState.mIsAltDown && !modKeyState.mIsControlDown && IS_VK_DOWN(NS_VK_SPACE)) return FALSE; LRESULT result = 0; if (modKeyState.mIsAltDown && nsIMM32Handler::IsStatusChanged()) { nsIMM32Handler::NotifyEndStatusChange(); } else if (!nsIMM32Handler::IsComposingOn(this)) { result = OnKeyDown(aMsg, modKeyState, aEventDispatched, nsnull); // OnKeyDown cleaned up the redirected message information itself, so, // we should do nothing. forgetRedirectedMessage.mCancel = true; } if (aMsg.wParam == VK_MENU || (aMsg.wParam == VK_F10 && !modKeyState.mIsShiftDown)) { // We need to let Windows handle this keypress, // by returning false, if there's a native menu // bar somewhere in our containing window hierarchy. // Otherwise we handle the keypress and don't pass // it on to Windows, by returning true. bool hasNativeMenu = false; HWND hWnd = mWnd; while (hWnd) { if (::GetMenu(hWnd)) { hasNativeMenu = true; break; } hWnd = ::GetParent(hWnd); } result = !hasNativeMenu; } return result; } nsresult nsWindow::SynthesizeNativeKeyEvent(PRInt32 aNativeKeyboardLayout, PRInt32 aNativeKeyCode, PRUint32 aModifierFlags, const nsAString& aCharacters, const nsAString& aUnmodifiedCharacters) { nsPrintfCString layoutName("%08x", aNativeKeyboardLayout); HKL loadedLayout = LoadKeyboardLayoutA(layoutName.get(), KLF_NOTELLSHELL); if (loadedLayout == NULL) return NS_ERROR_NOT_AVAILABLE; // Setup clean key state and load desired layout BYTE originalKbdState[256]; ::GetKeyboardState(originalKbdState); BYTE kbdState[256]; memset(kbdState, 0, sizeof(kbdState)); // This changes the state of the keyboard for the current thread only, // and we'll restore it soon, so this should be OK. ::SetKeyboardState(kbdState); HKL oldLayout = gKbdLayout.GetLayout(); gKbdLayout.LoadLayout(loadedLayout); nsAutoTArray keySequence; SetupKeyModifiersSequence(&keySequence, aModifierFlags); NS_ASSERTION(aNativeKeyCode >= 0 && aNativeKeyCode < 256, "Native VK key code out of range"); keySequence.AppendElement(KeyPair(aNativeKeyCode, 0)); // Simulate the pressing of each modifier key and then the real key for (PRUint32 i = 0; i < keySequence.Length(); ++i) { PRUint8 key = keySequence[i].mGeneral; PRUint8 keySpecific = keySequence[i].mSpecific; kbdState[key] = 0x81; // key is down and toggled on if appropriate if (keySpecific) { kbdState[keySpecific] = 0x81; } ::SetKeyboardState(kbdState); nsModifierKeyState modKeyState; MSG msg = InitMSG(WM_KEYDOWN, key, 0); if (i == keySequence.Length() - 1 && aCharacters.Length() > 0) { UINT scanCode = ::MapVirtualKeyEx(aNativeKeyCode, MAPVK_VK_TO_VSC, gKbdLayout.GetLayout()); nsFakeCharMessage fakeMsg = { aCharacters.CharAt(0), scanCode }; OnKeyDown(msg, modKeyState, nsnull, &fakeMsg); } else { OnKeyDown(msg, modKeyState, nsnull, nsnull); } } for (PRUint32 i = keySequence.Length(); i > 0; --i) { PRUint8 key = keySequence[i - 1].mGeneral; PRUint8 keySpecific = keySequence[i - 1].mSpecific; kbdState[key] = 0; // key is up and toggled off if appropriate if (keySpecific) { kbdState[keySpecific] = 0; } ::SetKeyboardState(kbdState); nsModifierKeyState modKeyState; MSG msg = InitMSG(WM_KEYUP, key, 0); OnKeyUp(msg, modKeyState, nsnull); } // Restore old key state and layout ::SetKeyboardState(originalKbdState); gKbdLayout.LoadLayout(oldLayout); UnloadKeyboardLayout(loadedLayout); return NS_OK; } nsresult nsWindow::SynthesizeNativeMouseEvent(nsIntPoint aPoint, PRUint32 aNativeMessage, PRUint32 aModifierFlags) { RECT r; ::GetWindowRect(mWnd, &r); ::SetCursorPos(r.left + aPoint.x, r.top + aPoint.y); INPUT input; memset(&input, 0, sizeof(input)); input.type = INPUT_MOUSE; input.mi.dwFlags = aNativeMessage; ::SendInput(1, &input, sizeof(INPUT)); return NS_OK; } /************************************************************** * * SECTION: OnXXX message handlers * * For message handlers that need to be broken out or * implemented in specific platform code. * **************************************************************/ BOOL nsWindow::OnInputLangChange(HKL aHKL) { #ifdef KE_DEBUG PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("OnInputLanguageChange\n")); #endif gKbdLayout.LoadLayout(aHKL); return false; // always pass to child window } void nsWindow::OnWindowPosChanged(WINDOWPOS *wp, bool& result) { if (wp == nsnull) return; #ifdef WINSTATE_DEBUG_OUTPUT if (mWnd == GetTopLevelHWND(mWnd)) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** OnWindowPosChanged: [ top] ")); } else { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** OnWindowPosChanged: [child] ")); } PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("WINDOWPOS flags:")); if (wp->flags & SWP_FRAMECHANGED) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_FRAMECHANGED ")); } if (wp->flags & SWP_SHOWWINDOW) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_SHOWWINDOW ")); } if (wp->flags & SWP_NOSIZE) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_NOSIZE ")); } if (wp->flags & SWP_HIDEWINDOW) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_HIDEWINDOW ")); } if (wp->flags & SWP_NOZORDER) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_NOZORDER ")); } if (wp->flags & SWP_NOACTIVATE) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("SWP_NOACTIVATE ")); } PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("\n")); #endif // Handle window size mode changes if (wp->flags & SWP_FRAMECHANGED && mSizeMode != nsSizeMode_Fullscreen) { // Bug 566135 - Windows theme code calls show window on SW_SHOWMINIMIZED // windows when fullscreen games disable desktop composition. If we're // minimized and not being activated, ignore the event and let windows // handle it. if (mSizeMode == nsSizeMode_Minimized && (wp->flags & SWP_NOACTIVATE)) return; nsSizeModeEvent event(true, NS_SIZEMODE, this); WINDOWPLACEMENT pl; pl.length = sizeof(pl); ::GetWindowPlacement(mWnd, &pl); if (pl.showCmd == SW_SHOWMAXIMIZED) event.mSizeMode = (mFullscreenMode ? nsSizeMode_Fullscreen : nsSizeMode_Maximized); else if (pl.showCmd == SW_SHOWMINIMIZED) event.mSizeMode = nsSizeMode_Minimized; else if (mFullscreenMode) event.mSizeMode = nsSizeMode_Fullscreen; else event.mSizeMode = nsSizeMode_Normal; // Windows has just changed the size mode of this window. The following // NS_SIZEMODE event will trigger a call into SetSizeMode where we will // set the min/max window state again or for nsSizeMode_Normal, call // SetWindow with a parameter of SW_RESTORE. There's no need however as // this window's mode has already changed. Updating mSizeMode here // insures the SetSizeMode call is a no-op. Addresses a bug on Win7 related // to window docking. (bug 489258) mSizeMode = event.mSizeMode; // If !sTrimOnMinimize, we minimize windows using SW_SHOWMINIMIZED (See // SetSizeMode for internal calls, and WM_SYSCOMMAND for external). This // prevents the working set from being trimmed but keeps the window active. // After the window is minimized, we need to do some touch up work on the // active window. (bugs 76831 & 499816) if (!sTrimOnMinimize && nsSizeMode_Minimized == event.mSizeMode) ActivateOtherWindowHelper(mWnd); #ifdef WINSTATE_DEBUG_OUTPUT switch (mSizeMode) { case nsSizeMode_Normal: PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** mSizeMode: nsSizeMode_Normal\n")); break; case nsSizeMode_Minimized: PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** mSizeMode: nsSizeMode_Minimized\n")); break; case nsSizeMode_Maximized: PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** mSizeMode: nsSizeMode_Maximized\n"); break; default: PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** mSizeMode: ??????\n"); break; }; #endif InitEvent(event); result = DispatchWindowEvent(&event); // Skip window size change events below on minimization. if (mSizeMode == nsSizeMode_Minimized) return; } // Handle window size changes if (!(wp->flags & SWP_NOSIZE)) { RECT r; PRInt32 newWidth, newHeight; ::GetWindowRect(mWnd, &r); newWidth = r.right - r.left; newHeight = r.bottom - r.top; nsIntRect rect(wp->x, wp->y, newWidth, newHeight); #ifdef MOZ_XUL if (eTransparencyTransparent == mTransparencyMode) ResizeTranslucentWindow(newWidth, newHeight); #endif if (newWidth > mLastSize.width) { RECT drect; // getting wider drect.left = wp->x + mLastSize.width; drect.top = wp->y; drect.right = drect.left + (newWidth - mLastSize.width); drect.bottom = drect.top + newHeight; ::RedrawWindow(mWnd, &drect, NULL, RDW_INVALIDATE | RDW_NOERASE | RDW_NOINTERNALPAINT | RDW_ERASENOW | RDW_ALLCHILDREN); } if (newHeight > mLastSize.height) { RECT drect; // getting taller drect.left = wp->x; drect.top = wp->y + mLastSize.height; drect.right = drect.left + newWidth; drect.bottom = drect.top + (newHeight - mLastSize.height); ::RedrawWindow(mWnd, &drect, NULL, RDW_INVALIDATE | RDW_NOERASE | RDW_NOINTERNALPAINT | RDW_ERASENOW | RDW_ALLCHILDREN); } mBounds.width = newWidth; mBounds.height = newHeight; mLastSize.width = newWidth; mLastSize.height = newHeight; #ifdef WINSTATE_DEBUG_OUTPUT PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("*** Resize window: %d x %d x %d x %d\n", wp->x, wp->y, newWidth, newHeight)); #endif // If a maximized window is resized, recalculate the non-client margins and // ensure a 1 pixel margin at screen bottom to allow taskbar unhiding to // work properly. if (mSizeMode == nsSizeMode_Maximized) { if (UpdateNonClientMargins(nsSizeMode_Maximized, true)) { // gecko resize event already sent by UpdateNonClientMargins. result = true; return; } } // Recalculate the width and height based on the client area for gecko events. if (::GetClientRect(mWnd, &r)) { rect.width = r.right - r.left; rect.height = r.bottom - r.top; } // Send a gecko resize event result = OnResize(rect); } } // static void nsWindow::ActivateOtherWindowHelper(HWND aWnd) { // Find the next window that is enabled, visible, and not minimized. HWND hwndBelow = ::GetNextWindow(aWnd, GW_HWNDNEXT); while (hwndBelow && (!::IsWindowEnabled(hwndBelow) || !::IsWindowVisible(hwndBelow) || ::IsIconic(hwndBelow))) { hwndBelow = ::GetNextWindow(hwndBelow, GW_HWNDNEXT); } // Push ourselves to the bottom of the stack, then activate the // next window. ::SetWindowPos(aWnd, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE); if (hwndBelow) ::SetForegroundWindow(hwndBelow); // Play the minimize sound while we're here, since that is also // forgotten when we use SW_SHOWMINIMIZED. nsCOMPtr sound(do_CreateInstance("@mozilla.org/sound;1")); if (sound) { sound->PlaySystemSound(NS_LITERAL_STRING("Minimize")); } } void nsWindow::OnWindowPosChanging(LPWINDOWPOS& info) { // Update non-client margins if the frame size is changing, and let the // browser know we are changing size modes, so alternative css can kick in. // If we're going into fullscreen mode, ignore this, since it'll reset // margins to normal mode. if ((info->flags & SWP_FRAMECHANGED && !(info->flags & SWP_NOSIZE)) && mSizeMode != nsSizeMode_Fullscreen) { WINDOWPLACEMENT pl; pl.length = sizeof(pl); ::GetWindowPlacement(mWnd, &pl); PRInt32 sizeMode; if (pl.showCmd == SW_SHOWMAXIMIZED) sizeMode = (mFullscreenMode ? nsSizeMode_Fullscreen : nsSizeMode_Maximized); else if (pl.showCmd == SW_SHOWMINIMIZED) sizeMode = nsSizeMode_Minimized; else if (mFullscreenMode) sizeMode = nsSizeMode_Fullscreen; else sizeMode = nsSizeMode_Normal; nsSizeModeEvent event(true, NS_SIZEMODE, this); InitEvent(event); event.mSizeMode = static_cast(sizeMode); DispatchWindowEvent(&event); UpdateNonClientMargins(sizeMode, false); } // enforce local z-order rules if (!(info->flags & SWP_NOZORDER)) { HWND hwndAfter = info->hwndInsertAfter; nsZLevelEvent event(true, NS_SETZLEVEL, this); nsWindow *aboveWindow = 0; InitEvent(event); if (hwndAfter == HWND_BOTTOM) event.mPlacement = nsWindowZBottom; else if (hwndAfter == HWND_TOP || hwndAfter == HWND_TOPMOST || hwndAfter == HWND_NOTOPMOST) event.mPlacement = nsWindowZTop; else { event.mPlacement = nsWindowZRelative; aboveWindow = GetNSWindowPtr(hwndAfter); } event.mReqBelow = aboveWindow; event.mActualBelow = nsnull; event.mImmediate = false; event.mAdjusted = false; DispatchWindowEvent(&event); if (event.mAdjusted) { if (event.mPlacement == nsWindowZBottom) info->hwndInsertAfter = HWND_BOTTOM; else if (event.mPlacement == nsWindowZTop) info->hwndInsertAfter = HWND_TOP; else { info->hwndInsertAfter = (HWND)event.mActualBelow->GetNativeData(NS_NATIVE_WINDOW); } } NS_IF_RELEASE(event.mActualBelow); } // prevent rude external programs from making hidden window visible if (mWindowType == eWindowType_invisible) info->flags &= ~SWP_SHOWWINDOW; } void nsWindow::UserActivity() { // Check if we have the idle service, if not we try to get it. if (!mIdleService) { mIdleService = do_GetService("@mozilla.org/widget/idleservice;1"); } // Check that we now have the idle service. if (mIdleService) { mIdleService->ResetIdleTimeOut(); } } #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7 bool nsWindow::OnTouch(WPARAM wParam, LPARAM lParam) { PRUint32 cInputs = LOWORD(wParam); PTOUCHINPUT pInputs = new TOUCHINPUT[cInputs]; if (mGesture.GetTouchInputInfo((HTOUCHINPUT)lParam, cInputs, pInputs)) { for (PRUint32 i = 0; i < cInputs; i++) { PRUint32 msg; if (pInputs[i].dwFlags & TOUCHEVENTF_MOVE) { msg = NS_MOZTOUCH_MOVE; } else if (pInputs[i].dwFlags & TOUCHEVENTF_DOWN) { msg = NS_MOZTOUCH_DOWN; } else if (pInputs[i].dwFlags & TOUCHEVENTF_UP) { msg = NS_MOZTOUCH_UP; } else { continue; } nsPointWin touchPoint; touchPoint.x = TOUCH_COORD_TO_PIXEL(pInputs[i].x); touchPoint.y = TOUCH_COORD_TO_PIXEL(pInputs[i].y); touchPoint.ScreenToClient(mWnd); nsMozTouchEvent touchEvent(true, msg, this, pInputs[i].dwID); touchEvent.inputSource = nsIDOMMouseEvent::MOZ_SOURCE_TOUCH; touchEvent.refPoint = touchPoint; nsEventStatus status; DispatchEvent(&touchEvent, status); } } delete [] pInputs; mGesture.CloseTouchInputHandle((HTOUCHINPUT)lParam); return true; } #endif // Gesture event processing. Handles WM_GESTURE events. bool nsWindow::OnGesture(WPARAM wParam, LPARAM lParam) { // Treatment for pan events which translate into scroll events: if (mGesture.IsPanEvent(lParam)) { nsMouseScrollEvent event(true, NS_MOUSE_PIXEL_SCROLL, this); if ( !mGesture.ProcessPanMessage(mWnd, wParam, lParam) ) return false; // ignore nsEventStatus status; event.isShift = IS_VK_DOWN(NS_VK_SHIFT); event.isControl = IS_VK_DOWN(NS_VK_CONTROL); event.isMeta = false; event.isAlt = IS_VK_DOWN(NS_VK_ALT); event.button = 0; event.time = ::GetMessageTime(); event.inputSource = nsIDOMMouseEvent::MOZ_SOURCE_TOUCH; bool endFeedback = true; PRInt32 scrollOverflowX = 0; PRInt32 scrollOverflowY = 0; if (mGesture.PanDeltaToPixelScrollX(event)) { DispatchEvent(&event, status); scrollOverflowX = event.scrollOverflow; } if (mGesture.PanDeltaToPixelScrollY(event)) { DispatchEvent(&event, status); scrollOverflowY = event.scrollOverflow; } if (mDisplayPanFeedback) { mGesture.UpdatePanFeedbackX(mWnd, scrollOverflowX, endFeedback); mGesture.UpdatePanFeedbackY(mWnd, scrollOverflowY, endFeedback); mGesture.PanFeedbackFinalize(mWnd, endFeedback); } mGesture.CloseGestureInfoHandle((HGESTUREINFO)lParam); return true; } // Other gestures translate into simple gesture events: nsSimpleGestureEvent event(true, 0, this, 0, 0.0); if ( !mGesture.ProcessGestureMessage(mWnd, wParam, lParam, event) ) { return false; // fall through to DefWndProc } // Polish up and send off the new event event.isShift = IS_VK_DOWN(NS_VK_SHIFT); event.isControl = IS_VK_DOWN(NS_VK_CONTROL); event.isMeta = false; event.isAlt = IS_VK_DOWN(NS_VK_ALT); event.button = 0; event.time = ::GetMessageTime(); event.inputSource = nsIDOMMouseEvent::MOZ_SOURCE_TOUCH; nsEventStatus status; DispatchEvent(&event, status); if (status == nsEventStatus_eIgnore) { return false; // Ignored, fall through } // Only close this if we process and return true. mGesture.CloseGestureInfoHandle((HGESTUREINFO)lParam); return true; // Handled } PRUint16 nsWindow::GetMouseInputSource() { PRUint16 inputSource = nsIDOMMouseEvent::MOZ_SOURCE_MOUSE; LPARAM lParamExtraInfo = ::GetMessageExtraInfo(); if ((lParamExtraInfo & TABLET_INK_SIGNATURE) == TABLET_INK_CHECK) { inputSource = (lParamExtraInfo & TABLET_INK_TOUCH) ? PRUint16(nsIDOMMouseEvent::MOZ_SOURCE_TOUCH) : nsIDOMMouseEvent::MOZ_SOURCE_PEN; } return inputSource; } /* static */ void nsWindow::InitMouseWheelScrollData() { if (!sNeedsToInitMouseWheelSettings) { return; } sNeedsToInitMouseWheelSettings = false; ResetRemainingWheelDelta(); if (!::SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &sMouseWheelScrollLines, 0)) { NS_WARNING("Failed to get SPI_GETWHEELSCROLLLINES"); sMouseWheelScrollLines = 3; } else if (sMouseWheelScrollLines > WHEEL_DELTA) { // sMouseWheelScrollLines usually equals 3 or 0 (for no scrolling) // However, if sMouseWheelScrollLines > WHEEL_DELTA, we assume that // the mouse driver wants a page scroll. The docs state that // sMouseWheelScrollLines should explicitly equal WHEEL_PAGESCROLL, but // since some mouse drivers use an arbitrary large number instead, // we have to handle that as well. sMouseWheelScrollLines = WHEEL_PAGESCROLL; } if (!::SystemParametersInfo(SPI_GETWHEELSCROLLCHARS, 0, &sMouseWheelScrollChars, 0)) { NS_ASSERTION(!nsUXThemeData::sIsVistaOrLater, "Failed to get SPI_GETWHEELSCROLLCHARS"); sMouseWheelScrollChars = 1; } else if (sMouseWheelScrollChars > WHEEL_DELTA) { // See the comments for the case sMouseWheelScrollLines > WHEEL_DELTA. sMouseWheelScrollChars = WHEEL_PAGESCROLL; } sEnablePixelScrolling = Preferences::GetBool("mousewheel.enable_pixel_scrolling", true); } /* static */ void nsWindow::ResetRemainingWheelDelta() { sRemainingDeltaForPixel = 0; sRemainingDeltaForScroll = 0; sLastMouseWheelWnd = NULL; } static PRInt32 RoundDelta(double aDelta) { return aDelta >= 0 ? (PRInt32)floor(aDelta) : (PRInt32)ceil(aDelta); } /** * OnMouseWheelInternal - mouse wheel event processing. * aMessage may be WM_MOUSEWHEEL or WM_MOUSEHWHEEL but this is called when * ProcessMessage() handles MOZ_WM_MOUSEVWHEEL or MOZ_WM_MOUSEHWHEEL. */ void nsWindow::OnMouseWheelInternal(UINT aMessage, WPARAM aWParam, LPARAM aLParam, LRESULT *aRetValue) { InitMouseWheelScrollData(); bool isVertical = (aMessage == WM_MOUSEWHEEL); if ((isVertical && sMouseWheelScrollLines == 0) || (!isVertical && sMouseWheelScrollChars == 0)) { // XXX I think that we should dispatch mouse wheel events even if the // operation will not scroll because the wheel operation really happened // and web application may want to handle the event for non-scroll action. ResetRemainingWheelDelta(); *aRetValue = isVertical ? TRUE : FALSE; // means we don't process it return; } PRInt32 nativeDelta = (short)HIWORD(aWParam); if (!nativeDelta) { *aRetValue = isVertical ? TRUE : FALSE; // means we don't process it ResetRemainingWheelDelta(); return; // We cannot process this message } bool isPageScroll = ((isVertical && sMouseWheelScrollLines == WHEEL_PAGESCROLL) || (!isVertical && sMouseWheelScrollChars == WHEEL_PAGESCROLL)); // Discard the remaining delta if current wheel message and last one are // received by different window or to scroll different direction or // different unit scroll. Furthermore, if the last event was too old. PRUint32 now = PR_IntervalToMilliseconds(PR_IntervalNow()); if (sLastMouseWheelWnd && (sLastMouseWheelWnd != mWnd || sLastMouseWheelDeltaIsPositive != (nativeDelta > 0) || sLastMouseWheelOrientationIsVertical != isVertical || sLastMouseWheelUnitIsPage != isPageScroll || now - sLastMouseWheelTime > 1500)) { ResetRemainingWheelDelta(); } sLastMouseWheelWnd = mWnd; sLastMouseWheelDeltaIsPositive = (nativeDelta > 0); sLastMouseWheelOrientationIsVertical = isVertical; sLastMouseWheelUnitIsPage = isPageScroll; sLastMouseWheelTime = now; *aRetValue = isVertical ? FALSE : TRUE; // means we process this message nsModifierKeyState modKeyState; // Our positive delta value means to bottom or right. // But positive nativeDelta value means to top or right. // Use orienter for computing our delta value with native delta value. PRInt32 orienter = isVertical ? -1 : 1; // Assume the Control key is down if the Elantech touchpad has sent the // mis-ordered WM_KEYDOWN/WM_MOUSEWHEEL messages. (See the comment in // OnKeyUp.) bool isControl; if (mAssumeWheelIsZoomUntil && static_cast(::GetMessageTime()) < mAssumeWheelIsZoomUntil) { isControl = true; } else { isControl = modKeyState.mIsControlDown; } // Create line (or page) scroll event. nsMouseScrollEvent scrollEvent(true, NS_MOUSE_SCROLL, this); // Initialize common members on line scroll event, pixel scroll event and // test event. InitEvent(scrollEvent); scrollEvent.isShift = modKeyState.mIsShiftDown; scrollEvent.isControl = isControl; scrollEvent.isMeta = false; scrollEvent.isAlt = modKeyState.mIsAltDown; // Before dispatching line scroll event, we should get the current scroll // event target information for pixel scroll. bool dispatchPixelScrollEvent = false; bool reversePixelScrollDirection = false; PRInt32 actualScrollAction = nsQueryContentEvent::SCROLL_ACTION_NONE; PRInt32 pixelsPerUnit = 0; // the amount is the number of lines (or pages) per WHEEL_DELTA PRInt32 computedScrollAmount = isPageScroll ? 1 : (isVertical ? sMouseWheelScrollLines : sMouseWheelScrollChars); if (sEnablePixelScrolling) { nsMouseScrollEvent testEvent(true, NS_MOUSE_SCROLL, this); InitEvent(testEvent); testEvent.scrollFlags = isPageScroll ? nsMouseScrollEvent::kIsFullPage : 0; testEvent.scrollFlags |= isVertical ? nsMouseScrollEvent::kIsVertical : nsMouseScrollEvent::kIsHorizontal; testEvent.isShift = scrollEvent.isShift; testEvent.isControl = scrollEvent.isControl; testEvent.isMeta = scrollEvent.isMeta; testEvent.isAlt = scrollEvent.isAlt; testEvent.delta = computedScrollAmount; if ((isVertical && sLastMouseWheelDeltaIsPositive) || (!isVertical && !sLastMouseWheelDeltaIsPositive)) { testEvent.delta *= -1; } nsQueryContentEvent queryEvent(true, NS_QUERY_SCROLL_TARGET_INFO, this); InitEvent(queryEvent); queryEvent.InitForQueryScrollTargetInfo(&testEvent); DispatchWindowEvent(&queryEvent); // If the necessary interger isn't larger than 0, we should assume that // the event failed for us. if (queryEvent.mSucceeded) { actualScrollAction = queryEvent.mReply.mComputedScrollAction; if (actualScrollAction == nsQueryContentEvent::SCROLL_ACTION_PAGE) { if (isVertical) { pixelsPerUnit = queryEvent.mReply.mPageHeight; } else { pixelsPerUnit = queryEvent.mReply.mPageWidth; } } else { pixelsPerUnit = queryEvent.mReply.mLineHeight; } computedScrollAmount = queryEvent.mReply.mComputedScrollAmount; if (pixelsPerUnit > 0 && computedScrollAmount != 0 && actualScrollAction != nsQueryContentEvent::SCROLL_ACTION_NONE) { dispatchPixelScrollEvent = true; // If original delta's sign and computed delta's one are different, // we need to reverse the pixel scroll direction at dispatching it. reversePixelScrollDirection = (testEvent.delta > 0 && computedScrollAmount < 0) || (testEvent.delta < 0 && computedScrollAmount > 0); // scroll amount must be positive. computedScrollAmount = NS_ABS(computedScrollAmount); } } } // If we dispatch pixel scroll event after the line scroll event, // we should set kHasPixels flag to the line scroll event. scrollEvent.scrollFlags = dispatchPixelScrollEvent ? nsMouseScrollEvent::kHasPixels : 0; PRInt32 nativeDeltaForScroll = nativeDelta + sRemainingDeltaForScroll; // NOTE: Don't use computedScrollAmount for computing the delta value of // line/page scroll event. The value will be recomputed in ESM. if (isPageScroll) { scrollEvent.scrollFlags |= nsMouseScrollEvent::kIsFullPage; if (isVertical) { scrollEvent.scrollFlags |= nsMouseScrollEvent::kIsVertical; } else { scrollEvent.scrollFlags |= nsMouseScrollEvent::kIsHorizontal; } scrollEvent.delta = nativeDeltaForScroll * orienter / WHEEL_DELTA; PRInt32 recomputedNativeDelta = scrollEvent.delta * orienter / WHEEL_DELTA; sRemainingDeltaForScroll = nativeDeltaForScroll - recomputedNativeDelta; } else { double deltaPerUnit; if (isVertical) { scrollEvent.scrollFlags |= nsMouseScrollEvent::kIsVertical; deltaPerUnit = (double)WHEEL_DELTA / sMouseWheelScrollLines; } else { scrollEvent.scrollFlags |= nsMouseScrollEvent::kIsHorizontal; deltaPerUnit = (double)WHEEL_DELTA / sMouseWheelScrollChars; } scrollEvent.delta = RoundDelta((double)nativeDeltaForScroll * orienter / deltaPerUnit); PRInt32 recomputedNativeDelta = (PRInt32)(scrollEvent.delta * orienter * deltaPerUnit); sRemainingDeltaForScroll = nativeDeltaForScroll - recomputedNativeDelta; } if (scrollEvent.delta) { DispatchWindowEvent(&scrollEvent); if (mOnDestroyCalled) { ResetRemainingWheelDelta(); return; } } // If the query event failed, we cannot send pixel events. if (!dispatchPixelScrollEvent) { sRemainingDeltaForPixel = 0; return; } nsMouseScrollEvent pixelEvent(true, NS_MOUSE_PIXEL_SCROLL, this); InitEvent(pixelEvent); pixelEvent.scrollFlags = nsMouseScrollEvent::kAllowSmoothScroll; pixelEvent.scrollFlags |= isVertical ? nsMouseScrollEvent::kIsVertical : nsMouseScrollEvent::kIsHorizontal; if (actualScrollAction == nsQueryContentEvent::SCROLL_ACTION_PAGE) { pixelEvent.scrollFlags |= nsMouseScrollEvent::kIsFullPage; } // Use same modifier state for pixel scroll event. pixelEvent.isShift = scrollEvent.isShift; pixelEvent.isControl = scrollEvent.isControl; pixelEvent.isMeta = scrollEvent.isMeta; pixelEvent.isAlt = scrollEvent.isAlt; PRInt32 nativeDeltaForPixel = nativeDelta + sRemainingDeltaForPixel; // Pixel scroll event won't be recomputed the scroll amout and direction by // ESM. Therefore, we need to set the computed amout and direction here. PRInt32 orienterForPixel = reversePixelScrollDirection ? -orienter : orienter; double deltaPerPixel = (double)WHEEL_DELTA / computedScrollAmount / pixelsPerUnit; pixelEvent.delta = RoundDelta((double)nativeDeltaForPixel * orienterForPixel / deltaPerPixel); PRInt32 recomputedNativeDelta = (PRInt32)(pixelEvent.delta * orienterForPixel * deltaPerPixel); sRemainingDeltaForPixel = nativeDeltaForPixel - recomputedNativeDelta; if (pixelEvent.delta != 0) { DispatchWindowEvent(&pixelEvent); } return; } static bool StringCaseInsensitiveEquals(const PRUnichar* aChars1, const PRUint32 aNumChars1, const PRUnichar* aChars2, const PRUint32 aNumChars2) { if (aNumChars1 != aNumChars2) return false; nsCaseInsensitiveStringComparator comp; return comp(aChars1, aChars2, aNumChars1, aNumChars2) == 0; } UINT nsWindow::MapFromNativeToDOM(UINT aNativeKeyCode) { switch (aNativeKeyCode) { case VK_OEM_1: return NS_VK_SEMICOLON; // 0xBA, For the US standard keyboard, the ';:' key case VK_OEM_PLUS: return NS_VK_ADD; // 0xBB, For any country/region, the '+' key case VK_OEM_MINUS: return NS_VK_SUBTRACT; // 0xBD, For any country/region, the '-' key } return aNativeKeyCode; } /* static */ bool nsWindow::IsRedirectedKeyDownMessage(const MSG &aMsg) { return (aMsg.message == WM_KEYDOWN || aMsg.message == WM_SYSKEYDOWN) && (sRedirectedKeyDown.message == aMsg.message && GetScanCode(sRedirectedKeyDown.lParam) == GetScanCode(aMsg.lParam)); } void nsWindow::PerformElantechSwipeGestureHack(UINT& aVirtualKeyCode, nsModifierKeyState& aModKeyState) { // The Elantech touchpad driver understands three-finger swipe left and // right gestures, and translates them into Page Up and Page Down key // events for most applications. For Firefox 3.6, it instead sends // Alt+Left and Alt+Right to trigger browser back/forward actions. As // with the Thinkpad Driver hack in nsWindow::Create, the change in // HWND structure makes Firefox not trigger the driver's heuristics // any longer. // // The Elantech driver actually sends these messages for a three-finger // swipe right: // // WM_KEYDOWN virtual_key = 0xCC or 0xFF (depending on driver version) // WM_KEYDOWN virtual_key = VK_NEXT // WM_KEYUP virtual_key = VK_NEXT // WM_KEYUP virtual_key = 0xCC or 0xFF // // so we use the 0xCC or 0xFF key modifier to detect whether the Page Down // is due to the gesture rather than a regular Page Down keypress. We then // pretend that we were went an Alt+Right keystroke instead. Similarly // for VK_PRIOR and Alt+Left. if ((aVirtualKeyCode == VK_NEXT || aVirtualKeyCode == VK_PRIOR) && (IS_VK_DOWN(0xFF) || IS_VK_DOWN(0xCC))) { aModKeyState.mIsAltDown = true; aVirtualKeyCode = aVirtualKeyCode == VK_NEXT ? VK_RIGHT : VK_LEFT; } } /** * nsWindow::OnKeyDown peeks into the message queue and pulls out * WM_CHAR messages for processing. During testing we don't want to * mess with the real message queue. Instead we pass a * pseudo-WM_CHAR-message using this structure, and OnKeyDown will use * that as if it was in the message queue, and refrain from actually * looking at or touching the message queue. */ LRESULT nsWindow::OnKeyDown(const MSG &aMsg, nsModifierKeyState &aModKeyState, bool *aEventDispatched, nsFakeCharMessage* aFakeCharMessage) { UINT virtualKeyCode = aMsg.wParam != VK_PROCESSKEY ? aMsg.wParam : ::ImmGetVirtualKey(mWnd); gKbdLayout.OnKeyDown(virtualKeyCode); if (sUseElantechSwipeHack) { PerformElantechSwipeGestureHack(virtualKeyCode, aModKeyState); } // Use only DOMKeyCode for XP processing. // Use virtualKeyCode for gKbdLayout and native processing. UINT DOMKeyCode = nsIMM32Handler::IsComposingOn(this) ? virtualKeyCode : MapFromNativeToDOM(virtualKeyCode); #ifdef DEBUG //PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("In OnKeyDown virt: %d\n", DOMKeyCode)); #endif static bool sRedirectedKeyDownEventPreventedDefault = false; bool noDefault; if (aFakeCharMessage || !IsRedirectedKeyDownMessage(aMsg)) { nsIMEContext IMEContext(mWnd); noDefault = DispatchKeyEvent(NS_KEY_DOWN, 0, nsnull, DOMKeyCode, &aMsg, aModKeyState); if (aEventDispatched) { *aEventDispatched = true; } // If IMC wasn't associated to the window but is associated it now (i.e., // focus is moved from a non-editable editor to an editor by keydown // event handler), WM_CHAR and WM_SYSCHAR shouldn't cause first character // inputting if IME is opened. But then, we should redirect the native // keydown message to IME. // However, note that if focus has been already moved to another // application, we shouldn't redirect the message to it because the keydown // message is processed by us, so, nobody shouldn't process it. HWND focusedWnd = ::GetFocus(); nsIMEContext newIMEContext(mWnd); if (!noDefault && !aFakeCharMessage && focusedWnd && !PluginHasFocus() && !IMEContext.get() && newIMEContext.get()) { RemoveNextCharMessage(focusedWnd); INPUT keyinput; keyinput.type = INPUT_KEYBOARD; keyinput.ki.wVk = aMsg.wParam; keyinput.ki.wScan = GetScanCode(aMsg.lParam); keyinput.ki.dwFlags = KEYEVENTF_SCANCODE; if (IsExtendedScanCode(aMsg.lParam)) { keyinput.ki.dwFlags |= KEYEVENTF_EXTENDEDKEY; } keyinput.ki.time = 0; keyinput.ki.dwExtraInfo = NULL; sRedirectedKeyDownEventPreventedDefault = noDefault; sRedirectedKeyDown = aMsg; ::SendInput(1, &keyinput, sizeof(keyinput)); // Return here. We shouldn't dispatch keypress event for this WM_KEYDOWN. // If it's needed, it will be dispatched after next (redirected) // WM_KEYDOWN. return true; } if (mOnDestroyCalled) { // If this was destroyed by the keydown event handler, we shouldn't // dispatch keypress event on this window. return true; } } else { noDefault = sRedirectedKeyDownEventPreventedDefault; // If this is redirected keydown message, we have dispatched the keydown // event already. if (aEventDispatched) { *aEventDispatched = true; } } ForgetRedirectedKeyDownMessage(); // If the key was processed by IME, we shouldn't dispatch keypress event. if (aMsg.wParam == VK_PROCESSKEY) { return noDefault; } // If we won't be getting a WM_CHAR, WM_SYSCHAR or WM_DEADCHAR, synthesize a keypress // for almost all keys switch (DOMKeyCode) { case NS_VK_SHIFT: case NS_VK_CONTROL: case NS_VK_ALT: case NS_VK_CAPS_LOCK: case NS_VK_NUM_LOCK: case NS_VK_SCROLL_LOCK: return noDefault; } PRUint32 extraFlags = (noDefault ? NS_EVENT_FLAG_NO_DEFAULT : 0); MSG msg; BOOL gotMsg = aFakeCharMessage || ::PeekMessageW(&msg, mWnd, WM_KEYFIRST, WM_KEYLAST, PM_NOREMOVE | PM_NOYIELD); // Enter and backspace are always handled here to avoid for example the // confusion between ctrl-enter and ctrl-J. if (DOMKeyCode == NS_VK_RETURN || DOMKeyCode == NS_VK_BACK || ((aModKeyState.mIsControlDown || aModKeyState.mIsAltDown) && !gKbdLayout.IsDeadKey() && KeyboardLayout::IsPrintableCharKey(virtualKeyCode))) { // Remove a possible WM_CHAR or WM_SYSCHAR messages from the message queue. // They can be more than one because of: // * Dead-keys not pairing with base character // * Some keyboard layouts may map up to 4 characters to the single key bool anyCharMessagesRemoved = false; if (aFakeCharMessage) { RemoveMessageAndDispatchPluginEvent(WM_KEYFIRST, WM_KEYLAST, aFakeCharMessage); anyCharMessagesRemoved = true; } else { while (gotMsg && (msg.message == WM_CHAR || msg.message == WM_SYSCHAR)) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("%s charCode=%d scanCode=%d\n", msg.message == WM_SYSCHAR ? "WM_SYSCHAR" : "WM_CHAR", msg.wParam, HIWORD(msg.lParam) & 0xFF)); RemoveMessageAndDispatchPluginEvent(WM_KEYFIRST, WM_KEYLAST); anyCharMessagesRemoved = true; gotMsg = ::PeekMessageW (&msg, mWnd, WM_KEYFIRST, WM_KEYLAST, PM_NOREMOVE | PM_NOYIELD); } } if (!anyCharMessagesRemoved && DOMKeyCode == NS_VK_BACK && nsIMM32Handler::IsDoingKakuteiUndo(mWnd)) { NS_ASSERTION(!aFakeCharMessage, "We shouldn't be touching the real msg queue"); RemoveMessageAndDispatchPluginEvent(WM_CHAR, WM_CHAR); } } else if (gotMsg && (aFakeCharMessage || msg.message == WM_CHAR || msg.message == WM_SYSCHAR || msg.message == WM_DEADCHAR)) { if (aFakeCharMessage) { MSG msg = aFakeCharMessage->GetCharMessage(mWnd); return OnCharRaw(aFakeCharMessage->mCharCode, aFakeCharMessage->mScanCode, aModKeyState, extraFlags, &msg); } // If prevent default set for keydown, do same for keypress ::GetMessageW(&msg, mWnd, msg.message, msg.message); if (msg.message == WM_DEADCHAR) { if (!PluginHasFocus()) return false; // We need to send the removed message to focused plug-in. DispatchPluginEvent(msg); return noDefault; } PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("%s charCode=%d scanCode=%d\n", msg.message == WM_SYSCHAR ? "WM_SYSCHAR" : "WM_CHAR", msg.wParam, HIWORD(msg.lParam) & 0xFF)); BOOL result = OnChar(msg, aModKeyState, nsnull, extraFlags); // If a syschar keypress wasn't processed, Windows may want to // handle it to activate a native menu. if (!result && msg.message == WM_SYSCHAR) ::DefWindowProcW(mWnd, msg.message, msg.wParam, msg.lParam); return result; } else if (!aModKeyState.mIsControlDown && !aModKeyState.mIsAltDown && (KeyboardLayout::IsPrintableCharKey(virtualKeyCode) || KeyboardLayout::IsNumpadKey(virtualKeyCode))) { // If this is simple KeyDown event but next message is not WM_CHAR, // this event may not input text, so we should ignore this event. // See bug 314130. return PluginHasFocus() && noDefault; } if (gKbdLayout.IsDeadKey ()) return PluginHasFocus() && noDefault; PRUint8 shiftStates[5]; PRUnichar uniChars[5]; PRUnichar shiftedChars[5] = {0, 0, 0, 0, 0}; PRUnichar unshiftedChars[5] = {0, 0, 0, 0, 0}; PRUnichar shiftedLatinChar = 0; PRUnichar unshiftedLatinChar = 0; PRUint32 numOfUniChars = 0; PRUint32 numOfShiftedChars = 0; PRUint32 numOfUnshiftedChars = 0; PRUint32 numOfShiftStates = 0; switch (virtualKeyCode) { // keys to be sent as characters case VK_ADD: uniChars [0] = '+'; numOfUniChars = 1; break; case VK_SUBTRACT: uniChars [0] = '-'; numOfUniChars = 1; break; case VK_DIVIDE: uniChars [0] = '/'; numOfUniChars = 1; break; case VK_MULTIPLY: uniChars [0] = '*'; numOfUniChars = 1; break; case VK_NUMPAD0: case VK_NUMPAD1: case VK_NUMPAD2: case VK_NUMPAD3: case VK_NUMPAD4: case VK_NUMPAD5: case VK_NUMPAD6: case VK_NUMPAD7: case VK_NUMPAD8: case VK_NUMPAD9: uniChars [0] = virtualKeyCode - VK_NUMPAD0 + '0'; numOfUniChars = 1; break; default: if (KeyboardLayout::IsPrintableCharKey(virtualKeyCode)) { numOfUniChars = numOfShiftStates = gKbdLayout.GetUniChars(uniChars, shiftStates, ArrayLength(uniChars)); } if (aModKeyState.mIsControlDown ^ aModKeyState.mIsAltDown) { PRUint8 capsLockState = (::GetKeyState(VK_CAPITAL) & 1) ? eCapsLock : 0; numOfUnshiftedChars = gKbdLayout.GetUniCharsWithShiftState(virtualKeyCode, capsLockState, unshiftedChars, ArrayLength(unshiftedChars)); numOfShiftedChars = gKbdLayout.GetUniCharsWithShiftState(virtualKeyCode, capsLockState | eShift, shiftedChars, ArrayLength(shiftedChars)); // The current keyboard cannot input alphabets or numerics, // we should append them for Shortcut/Access keys. // E.g., for Cyrillic keyboard layout. if (NS_VK_A <= DOMKeyCode && DOMKeyCode <= NS_VK_Z) { shiftedLatinChar = unshiftedLatinChar = DOMKeyCode; if (capsLockState) shiftedLatinChar += 0x20; else unshiftedLatinChar += 0x20; if (unshiftedLatinChar == unshiftedChars[0] && shiftedLatinChar == shiftedChars[0]) { shiftedLatinChar = unshiftedLatinChar = 0; } } else { PRUint16 ch = 0; if (NS_VK_0 <= DOMKeyCode && DOMKeyCode <= NS_VK_9) { ch = DOMKeyCode; } else { switch (virtualKeyCode) { case VK_OEM_PLUS: ch = '+'; break; case VK_OEM_MINUS: ch = '-'; break; } } if (ch && unshiftedChars[0] != ch && shiftedChars[0] != ch) { // Windows has assigned a virtual key code to the key even though // the character can't be produced with this key. That probably // means the character can't be produced with any key in the // current layout and so the assignment is based on a QWERTY // layout. Append this code so that users can access the shortcut. unshiftedLatinChar = ch; } } // If the charCode is not ASCII character, we should replace the // charCode with ASCII character only when Ctrl is pressed. // But don't replace the charCode when the charCode is not same as // unmodified characters. In such case, Ctrl is sometimes used for a // part of character inputting key combination like Shift. if (aModKeyState.mIsControlDown) { PRUint8 currentState = eCtrl; if (aModKeyState.mIsShiftDown) currentState |= eShift; PRUint32 ch = aModKeyState.mIsShiftDown ? shiftedLatinChar : unshiftedLatinChar; if (ch && (numOfUniChars == 0 || StringCaseInsensitiveEquals(uniChars, numOfUniChars, aModKeyState.mIsShiftDown ? shiftedChars : unshiftedChars, aModKeyState.mIsShiftDown ? numOfShiftedChars : numOfUnshiftedChars))) { numOfUniChars = numOfShiftStates = 1; uniChars[0] = ch; shiftStates[0] = currentState; } } } } if (numOfUniChars > 0 || numOfShiftedChars > 0 || numOfUnshiftedChars > 0) { PRUint32 num = NS_MAX(numOfUniChars, NS_MAX(numOfShiftedChars, numOfUnshiftedChars)); PRUint32 skipUniChars = num - numOfUniChars; PRUint32 skipShiftedChars = num - numOfShiftedChars; PRUint32 skipUnshiftedChars = num - numOfUnshiftedChars; UINT keyCode = numOfUniChars == 0 ? DOMKeyCode : 0; for (PRUint32 cnt = 0; cnt < num; cnt++) { PRUint16 uniChar, shiftedChar, unshiftedChar; uniChar = shiftedChar = unshiftedChar = 0; if (skipUniChars <= cnt) { if (cnt - skipUniChars < numOfShiftStates) { // If key in combination with Alt and/or Ctrl produces a different // character than without them then do not report these flags // because it is separate keyboard layout shift state. If dead-key // and base character does not produce a valid composite character // then both produced dead-key character and following base // character may have different modifier flags, too. aModKeyState.mIsShiftDown = (shiftStates[cnt - skipUniChars] & eShift) != 0; aModKeyState.mIsControlDown = (shiftStates[cnt - skipUniChars] & eCtrl) != 0; aModKeyState.mIsAltDown = (shiftStates[cnt - skipUniChars] & eAlt) != 0; } uniChar = uniChars[cnt - skipUniChars]; } if (skipShiftedChars <= cnt) shiftedChar = shiftedChars[cnt - skipShiftedChars]; if (skipUnshiftedChars <= cnt) unshiftedChar = unshiftedChars[cnt - skipUnshiftedChars]; nsAutoTArray altArray; if (shiftedChar || unshiftedChar) { nsAlternativeCharCode chars(unshiftedChar, shiftedChar); altArray.AppendElement(chars); } if (cnt == num - 1 && (unshiftedLatinChar || shiftedLatinChar)) { nsAlternativeCharCode chars(unshiftedLatinChar, shiftedLatinChar); altArray.AppendElement(chars); } DispatchKeyEvent(NS_KEY_PRESS, uniChar, &altArray, keyCode, nsnull, aModKeyState, extraFlags); } } else { DispatchKeyEvent(NS_KEY_PRESS, 0, nsnull, DOMKeyCode, nsnull, aModKeyState, extraFlags); } return noDefault; } // OnKeyUp LRESULT nsWindow::OnKeyUp(const MSG &aMsg, nsModifierKeyState &aModKeyState, bool *aEventDispatched) { UINT virtualKeyCode = aMsg.wParam; if (sUseElantechSwipeHack) { PerformElantechSwipeGestureHack(virtualKeyCode, aModKeyState); } if (sUseElantechPinchHack) { // Version 8 of the Elantech touchpad driver sends these messages for // zoom gestures: // // WM_KEYDOWN virtual_key = 0xCC time = 10 // WM_KEYDOWN virtual_key = VK_CONTROL time = 10 // WM_MOUSEWHEEL time = ::GetTickCount() // WM_KEYUP virtual_key = VK_CONTROL time = 10 // WM_KEYUP virtual_key = 0xCC time = 10 // // The result of this is that we process all of the WM_KEYDOWN/WM_KEYUP // messages first because their timestamps make them appear to have // been sent before the WM_MOUSEWHEEL message. To work around this, // we store the current time when we process the WM_KEYUP message and // assume that any WM_MOUSEWHEEL message with a timestamp before that // time is one that should be processed as if the Control key was down. if (virtualKeyCode == VK_CONTROL && aMsg.time == 10) { // We look only at the bottom 31 bits of the system tick count since // GetMessageTime returns a LONG, which is signed, so we want values // that are more easily comparable. mAssumeWheelIsZoomUntil = ::GetTickCount() & 0x7FFFFFFF; } } PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("nsWindow::OnKeyUp VK=%d\n", virtualKeyCode)); if (!nsIMM32Handler::IsComposingOn(this)) { virtualKeyCode = MapFromNativeToDOM(virtualKeyCode); } if (aEventDispatched) *aEventDispatched = true; return DispatchKeyEvent(NS_KEY_UP, 0, nsnull, virtualKeyCode, &aMsg, aModKeyState); } // OnChar LRESULT nsWindow::OnChar(const MSG &aMsg, nsModifierKeyState &aModKeyState, bool *aEventDispatched, PRUint32 aFlags) { return OnCharRaw(aMsg.wParam, HIWORD(aMsg.lParam) & 0xFF, aModKeyState, aFlags, &aMsg, aEventDispatched); } // OnCharRaw LRESULT nsWindow::OnCharRaw(UINT charCode, UINT aScanCode, nsModifierKeyState &aModKeyState, PRUint32 aFlags, const MSG *aMsg, bool *aEventDispatched) { // ignore [shift+]alt+space so the OS can handle it if (aModKeyState.mIsAltDown && !aModKeyState.mIsControlDown && IS_VK_DOWN(NS_VK_SPACE)) { return FALSE; } // Ignore Ctrl+Enter (bug 318235) if (aModKeyState.mIsControlDown && charCode == 0xA) { return FALSE; } // WM_CHAR with Control and Alt (== AltGr) down really means a normal character bool saveIsAltDown = aModKeyState.mIsAltDown; bool saveIsControlDown = aModKeyState.mIsControlDown; if (aModKeyState.mIsAltDown && aModKeyState.mIsControlDown) aModKeyState.mIsAltDown = aModKeyState.mIsControlDown = false; wchar_t uniChar; if (nsIMM32Handler::IsComposingOn(this)) { ResetInputState(); } if (aModKeyState.mIsControlDown && charCode <= 0x1A) { // Ctrl+A Ctrl+Z, see Programming Windows 3.1 page 110 for details // need to account for shift here. bug 16486 if (aModKeyState.mIsShiftDown) uniChar = charCode - 1 + 'A'; else uniChar = charCode - 1 + 'a'; charCode = 0; } else if (aModKeyState.mIsControlDown && charCode <= 0x1F) { // Fix for 50255 - <[> and <]> are not being processed. // also fixes ctrl+\ (x1c), ctrl+^ (x1e) and ctrl+_ (x1f) // for some reason the keypress handler need to have the uniChar code set // with the addition of a upper case A not the lower case. uniChar = charCode - 1 + 'A'; charCode = 0; } else { // 0x20 - SPACE, 0x3D - EQUALS if (charCode < 0x20 || (charCode == 0x3D && aModKeyState.mIsControlDown)) { uniChar = 0; } else { uniChar = charCode; charCode = 0; } } // Keep the characters unshifted for shortcuts and accesskeys and make sure // that numbers are always passed as such (among others: bugs 50255 and 351310) if (uniChar && (aModKeyState.mIsControlDown || aModKeyState.mIsAltDown)) { UINT virtualKeyCode = ::MapVirtualKeyEx(aScanCode, MAPVK_VSC_TO_VK, gKbdLayout.GetLayout()); UINT unshiftedCharCode = virtualKeyCode >= '0' && virtualKeyCode <= '9' ? virtualKeyCode : aModKeyState.mIsShiftDown ? ::MapVirtualKeyEx(virtualKeyCode, MAPVK_VK_TO_CHAR, gKbdLayout.GetLayout()) : 0; // ignore diacritics (top bit set) and key mapping errors (char code 0) if ((INT)unshiftedCharCode > 0) uniChar = unshiftedCharCode; } // Fix for bug 285161 (and 295095) which was caused by the initial fix for bug 178110. // When pressing (alt|ctrl)+char, the char must be lowercase unless shift is // pressed too. if (!aModKeyState.mIsShiftDown && (saveIsAltDown || saveIsControlDown)) { uniChar = towlower(uniChar); } bool result = DispatchKeyEvent(NS_KEY_PRESS, uniChar, nsnull, charCode, aMsg, aModKeyState, aFlags); if (aEventDispatched) *aEventDispatched = true; aModKeyState.mIsAltDown = saveIsAltDown; aModKeyState.mIsControlDown = saveIsControlDown; return result; } void nsWindow::SetupKeyModifiersSequence(nsTArray* aArray, PRUint32 aModifiers) { for (PRUint32 i = 0; i < ArrayLength(sModifierKeyMap); ++i) { const PRUint32* map = sModifierKeyMap[i]; if (aModifiers & map[0]) { aArray->AppendElement(KeyPair(map[1], map[2])); } } } nsresult nsWindow::ConfigureChildren(const nsTArray& aConfigurations) { // XXXroc we could use BeginDeferWindowPos/DeferWindowPos/EndDeferWindowPos // here, if that helps in some situations. So far I haven't seen a // need. for (PRUint32 i = 0; i < aConfigurations.Length(); ++i) { const Configuration& configuration = aConfigurations[i]; nsWindow* w = static_cast(configuration.mChild); NS_ASSERTION(w->GetParent() == this, "Configured widget is not a child"); nsresult rv = w->SetWindowClipRegion(configuration.mClipRegion, true); NS_ENSURE_SUCCESS(rv, rv); nsIntRect bounds; w->GetBounds(bounds); if (bounds.Size() != configuration.mBounds.Size()) { w->Resize(configuration.mBounds.x, configuration.mBounds.y, configuration.mBounds.width, configuration.mBounds.height, true); } else if (bounds.TopLeft() != configuration.mBounds.TopLeft()) { w->Move(configuration.mBounds.x, configuration.mBounds.y); if (gfxWindowsPlatform::GetPlatform()->GetRenderMode() == gfxWindowsPlatform::RENDER_DIRECT2D || GetLayerManager()->GetBackendType() != LayerManager::LAYERS_BASIC) { // XXX - Workaround for Bug 587508. This will invalidate the part of the // plugin window that might be touched by moving content somehow. The // underlying problem should be found and fixed! nsIntRegion r; r.Sub(bounds, configuration.mBounds); r.MoveBy(-bounds.x, -bounds.y); w->Invalidate(r.GetBounds(), false); } } rv = w->SetWindowClipRegion(configuration.mClipRegion, false); NS_ENSURE_SUCCESS(rv, rv); } return NS_OK; } static HRGN CreateHRGNFromArray(const nsTArray& aRects) { PRInt32 size = sizeof(RGNDATAHEADER) + sizeof(RECT)*aRects.Length(); nsAutoTArray buf; if (!buf.SetLength(size)) return NULL; RGNDATA* data = reinterpret_cast(buf.Elements()); RECT* rects = reinterpret_cast(data->Buffer); data->rdh.dwSize = sizeof(data->rdh); data->rdh.iType = RDH_RECTANGLES; data->rdh.nCount = aRects.Length(); nsIntRect bounds; for (PRUint32 i = 0; i < aRects.Length(); ++i) { const nsIntRect& r = aRects[i]; bounds.UnionRect(bounds, r); ::SetRect(&rects[i], r.x, r.y, r.XMost(), r.YMost()); } ::SetRect(&data->rdh.rcBound, bounds.x, bounds.y, bounds.XMost(), bounds.YMost()); return ::ExtCreateRegion(NULL, buf.Length(), data); } static const nsTArray ArrayFromRegion(const nsIntRegion& aRegion) { nsTArray rects; const nsIntRect* r; for (nsIntRegionRectIterator iter(aRegion); (r = iter.Next());) { rects.AppendElement(*r); } return rects; } nsresult nsWindow::SetWindowClipRegion(const nsTArray& aRects, bool aIntersectWithExisting) { if (!aIntersectWithExisting) { if (!StoreWindowClipRegion(aRects)) return NS_OK; } else { // In this case still early return if nothing changed. if (mClipRects && mClipRectCount == aRects.Length() && memcmp(mClipRects, aRects.Elements(), sizeof(nsIntRect)*mClipRectCount) == 0) { return NS_OK; } // get current rects nsTArray currentRects; GetWindowClipRegion(¤tRects); // create region from them nsIntRegion currentRegion = RegionFromArray(currentRects); // create region from new rects nsIntRegion newRegion = RegionFromArray(aRects); // intersect regions nsIntRegion intersection; intersection.And(currentRegion, newRegion); // create int rect array from intersection nsTArray rects = ArrayFromRegion(intersection); // store if (!StoreWindowClipRegion(rects)) return NS_OK; } HRGN dest = CreateHRGNFromArray(aRects); if (!dest) return NS_ERROR_OUT_OF_MEMORY; if (aIntersectWithExisting) { HRGN current = ::CreateRectRgn(0, 0, 0, 0); if (current) { if (::GetWindowRgn(mWnd, current) != 0 /*ERROR*/) { ::CombineRgn(dest, dest, current, RGN_AND); } ::DeleteObject(current); } } // If a plugin is not visibile, especially if it is in a background tab, // it should not be able to steal keyboard focus. This code checks whether // the region that the plugin is being clipped to is NULLREGION. If it is, // the plugin window gets disabled. if(mWindowType == eWindowType_plugin) { if(NULLREGION == ::CombineRgn(dest, dest, dest, RGN_OR)) { ::EnableWindow(mWnd, FALSE); } else { ::EnableWindow(mWnd, TRUE); } } if (!::SetWindowRgn(mWnd, dest, TRUE)) { ::DeleteObject(dest); return NS_ERROR_FAILURE; } return NS_OK; } // WM_DESTROY event handler void nsWindow::OnDestroy() { mOnDestroyCalled = true; // Make sure we don't get destroyed in the process of tearing down. nsCOMPtr kungFuDeathGrip(this); // Dispatch the NS_DESTROY event. Must be called before mEventCallback is cleared. if (!mInDtor) DispatchStandardEvent(NS_DESTROY); // Prevent the widget from sending additional events. mEventCallback = nsnull; // Free our subclass and clear |this| stored in the window props. We will no longer // receive events from Windows after this point. SubclassWindow(FALSE); // Once mEventCallback is cleared and the subclass is reset, sCurrentWindow can be // cleared. (It's used in tracking windows for mouse events.) if (sCurrentWindow == this) sCurrentWindow = nsnull; // Disconnects us from our parent, will call our GetParent(). nsBaseWidget::Destroy(); // Release references to children, device context, toolkit, and app shell. nsBaseWidget::OnDestroy(); // Clear our native parent handle. // XXX Windows will take care of this in the proper order, and SetParent(nsnull)'s // remove child on the parent already took place in nsBaseWidget's Destroy call above. //SetParent(nsnull); mParent = nsnull; // We have to destroy the native drag target before we null out our window pointer. EnableDragDrop(false); // If we're going away and for some reason we're still the rollup widget, rollup and // turn off capture. if ( this == sRollupWidget ) { if ( sRollupListener ) sRollupListener->Rollup(0); CaptureRollupEvents(nsnull, false, true); } // Restore the IM context. AssociateDefaultIMC(true); // Turn off mouse trails if enabled. MouseTrailer* mtrailer = nsToolkit::gMouseTrailer; if (mtrailer) { if (mtrailer->GetMouseTrailerWindow() == mWnd) mtrailer->DestroyTimer(); if (mtrailer->GetCaptureWindow() == mWnd) mtrailer->SetCaptureWindow(nsnull); } // Free GDI window class objects if (mBrush) { VERIFY(::DeleteObject(mBrush)); mBrush = NULL; } // Free app icon resources. HICON icon; icon = (HICON) ::SendMessageW(mWnd, WM_SETICON, (WPARAM)ICON_BIG, (LPARAM) 0); if (icon) ::DestroyIcon(icon); icon = (HICON) ::SendMessageW(mWnd, WM_SETICON, (WPARAM)ICON_SMALL, (LPARAM) 0); if (icon) ::DestroyIcon(icon); // Destroy any custom cursor resources. if (mCursor == -1) SetCursor(eCursor_standard); #ifdef MOZ_XUL // Reset transparency if (eTransparencyTransparent == mTransparencyMode) SetupTranslucentWindowMemoryBitmap(eTransparencyOpaque); #endif // Finalize panning feedback to possibly restore window displacement mGesture.PanFeedbackFinalize(mWnd, true); // Clear the main HWND. mWnd = NULL; } // OnMove bool nsWindow::OnMove(PRInt32 aX, PRInt32 aY) { mBounds.x = aX; mBounds.y = aY; nsGUIEvent event(true, NS_MOVE, this); InitEvent(event); event.refPoint.x = aX; event.refPoint.y = aY; return DispatchWindowEvent(&event); } // Send a resize message to the listener bool nsWindow::OnResize(nsIntRect &aWindowRect) { #ifdef CAIRO_HAS_D2D_SURFACE if (mD2DWindowSurface) { mD2DWindowSurface = NULL; Invalidate(false); } #endif // call the event callback if (mEventCallback) { nsSizeEvent event(true, NS_SIZE, this); InitEvent(event); event.windowSize = &aWindowRect; RECT r; if (::GetWindowRect(mWnd, &r)) { event.mWinWidth = PRInt32(r.right - r.left); event.mWinHeight = PRInt32(r.bottom - r.top); } else { event.mWinWidth = 0; event.mWinHeight = 0; } #if 0 PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("[%X] OnResize: client:(%d x %d x %d x %d) window:(%d x %d)\n", this, aWindowRect.x, aWindowRect.y, aWindowRect.width, aWindowRect.height, event.mWinWidth, event.mWinHeight)); #endif return DispatchWindowEvent(&event); } return false; } bool nsWindow::OnHotKey(WPARAM wParam, LPARAM lParam) { return true; } /* static */ bool nsWindow::IsOurProcessWindow(HWND aHWND) { if (!aHWND) { return false; } DWORD processId = 0; ::GetWindowThreadProcessId(aHWND, &processId); return processId == ::GetCurrentProcessId(); } /* static */ HWND nsWindow::FindOurProcessWindow(HWND aHWND) { for (HWND wnd = ::GetParent(aHWND); wnd; wnd = ::GetParent(wnd)) { if (IsOurProcessWindow(wnd)) { return wnd; } } return nsnull; } static bool PointInWindow(HWND aHWND, const POINT& aPoint) { RECT bounds; if (!::GetWindowRect(aHWND, &bounds)) { return false; } if (aPoint.x < bounds.left || aPoint.x >= bounds.right || aPoint.y < bounds.top || aPoint.y >= bounds.bottom) { return false; } return true; } static HWND FindTopmostWindowAtPoint(HWND aHWND, const POINT& aPoint) { if (!::IsWindowVisible(aHWND) || !PointInWindow(aHWND, aPoint)) { return 0; } HWND childWnd = ::GetTopWindow(aHWND); while (childWnd) { HWND topmostWnd = FindTopmostWindowAtPoint(childWnd, aPoint); if (topmostWnd) { return topmostWnd; } childWnd = ::GetNextWindow(childWnd, GW_HWNDNEXT); } return aHWND; } struct FindOurWindowAtPointInfo { POINT mInPoint; HWND mOutHWND; }; /* static */ BOOL CALLBACK nsWindow::FindOurWindowAtPointCallback(HWND aHWND, LPARAM aLPARAM) { if (!nsWindow::IsOurProcessWindow(aHWND)) { // This isn't one of our top-level windows; continue enumerating. return TRUE; } // Get the top-most child window under the point. If there's no child // window, and the point is within the top-level window, then the top-level // window will be returned. (This is the usual case. A child window // would be returned for plugins.) FindOurWindowAtPointInfo* info = reinterpret_cast(aLPARAM); HWND childWnd = FindTopmostWindowAtPoint(aHWND, info->mInPoint); if (!childWnd) { // This window doesn't contain the point; continue enumerating. return TRUE; } // Return the HWND and stop enumerating. info->mOutHWND = childWnd; return FALSE; } /* static */ HWND nsWindow::FindOurWindowAtPoint(const POINT& aPoint) { FindOurWindowAtPointInfo info; info.mInPoint = aPoint; info.mOutHWND = 0; // This will enumerate all top-level windows in order from top to bottom. EnumWindows(FindOurWindowAtPointCallback, reinterpret_cast(&info)); return info.mOutHWND; } typedef DWORD (WINAPI *GetProcessImageFileNameProc)(HANDLE, LPWSTR, DWORD); // Determine whether the given HWND is the handle for the Elantech helper // window. The helper window cannot be distinguished based on its // window class, so we need to check if it is owned by the helper process, // ETDCtrl.exe. static bool IsElantechHelperWindow(HWND aHWND) { static HMODULE hPSAPI = ::LoadLibraryW(L"psapi.dll"); static GetProcessImageFileNameProc pGetProcessImageFileName = reinterpret_cast(::GetProcAddress(hPSAPI, "GetProcessImageFileNameW")); if (!pGetProcessImageFileName) { return false; } const PRUnichar* filenameSuffix = L"\\etdctrl.exe"; const int filenameSuffixLength = 12; DWORD pid; ::GetWindowThreadProcessId(aHWND, &pid); bool result = false; HANDLE hProcess = ::OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid); if (hProcess) { PRUnichar path[256] = {L'\0'}; if (pGetProcessImageFileName(hProcess, path, ArrayLength(path))) { int pathLength = lstrlenW(path); if (pathLength >= filenameSuffixLength) { if (lstrcmpiW(path + pathLength - filenameSuffixLength, filenameSuffix) == 0) { result = true; } } } ::CloseHandle(hProcess); } return result; } // static UINT nsWindow::GetInternalMessage(UINT aNativeMessage) { switch (aNativeMessage) { case WM_MOUSEWHEEL: return MOZ_WM_MOUSEVWHEEL; case WM_MOUSEHWHEEL: return MOZ_WM_MOUSEHWHEEL; case WM_VSCROLL: return MOZ_WM_VSCROLL; case WM_HSCROLL: return MOZ_WM_HSCROLL; default: return aNativeMessage; } } // static UINT nsWindow::GetNativeMessage(UINT aInternalMessage) { switch (aInternalMessage) { case MOZ_WM_MOUSEVWHEEL: return WM_MOUSEWHEEL; case MOZ_WM_MOUSEHWHEEL: return WM_MOUSEHWHEEL; case MOZ_WM_VSCROLL: return WM_VSCROLL; case MOZ_WM_HSCROLL: return WM_HSCROLL; default: return aInternalMessage; } } /** * OnMouseWheel() is called when ProcessMessage() handles WM_MOUSEWHEEL, * WM_MOUSEHWHEEL and also OnScroll() tries to emulate mouse wheel action for * WM_VSCROLL or WM_HSCROLL. * So, aMsg may be WM_MOUSEWHEEL, WM_MOUSEHWHEEL, WM_VSCROLL or WM_HSCROLL. */ void nsWindow::OnMouseWheel(UINT aMsg, WPARAM aWParam, LPARAM aLParam, LRESULT *aRetValue) { *aRetValue = (aMsg != WM_MOUSEHWHEEL) ? TRUE : FALSE; POINT point; DWORD dwPoints = ::GetMessagePos(); point.x = GET_X_LPARAM(dwPoints); point.y = GET_Y_LPARAM(dwPoints); static bool sMayBeUsingLogitechMouse = false; if (aMsg == WM_MOUSEHWHEEL) { // Logitech (Logicool) mouse driver (confirmed with 4.82.11 and MX-1100) // always sets 0 to the lParam of WM_MOUSEHWHEEL. The driver SENDs one // message at first time, this time, ::GetMessagePos works fine. // Then, we will return 0 (0 means we process it) to the message. Then, the // driver will POST the same messages continuously during the wheel tilted. // But ::GetMessagePos API always returns (0, 0), even if the actual mouse // cursor isn't 0,0. Therefore, we cannot trust the result of // ::GetMessagePos API if the sender is the driver. if (!sMayBeUsingLogitechMouse && aLParam == 0 && (DWORD)aLParam != dwPoints && ::InSendMessage()) { sMayBeUsingLogitechMouse = true; } else if (sMayBeUsingLogitechMouse && aLParam != 0 && ::InSendMessage()) { // The user has changed the mouse from Logitech's to another one (e.g., // the user has changed to the touchpad of the notebook. sMayBeUsingLogitechMouse = false; } // If the WM_MOUSEHWHEEL comes from Logitech's mouse driver, and the // ::GetMessagePos isn't correct, probably, we should use ::GetCursorPos // instead. if (sMayBeUsingLogitechMouse && aLParam == 0 && dwPoints == 0) { ::GetCursorPos(&point); } } HWND underCursorWnd = ::WindowFromPoint(point); if (!underCursorWnd) { return; } if (sUseElantechPinchHack && IsElantechHelperWindow(underCursorWnd)) { // The Elantech driver places a window right underneath the cursor // when sending a WM_MOUSEWHEEL event to us as part of a pinch-to-zoom // gesture. We detect that here, and search for our window that would // be beneath the cursor if that window wasn't there. underCursorWnd = FindOurWindowAtPoint(point); if (!underCursorWnd) { return; } } // Handle most cases first. If the window under mouse cursor is our window // except plugin window (MozillaWindowClass), we should handle the message // on the window. if (IsOurProcessWindow(underCursorWnd)) { nsWindow* destWindow = GetNSWindowPtr(underCursorWnd); if (!destWindow) { NS_WARNING("We're not sure what cause this is."); HWND wnd = ::GetParent(underCursorWnd); for (; wnd; wnd = ::GetParent(wnd)) { destWindow = GetNSWindowPtr(wnd); if (destWindow) { break; } } if (!wnd) { return; } } NS_ASSERTION(destWindow, "destWindow must not be NULL"); // If the found window is our plugin window, it means that the message // has been handled by the plugin but not consumed. We should handle the // message on its parent window. However, note that the DOM event may // cause accessing the plugin. Therefore, we should unlock the plugin // process by using PostMessage(). if (destWindow->mWindowType == eWindowType_plugin) { destWindow = destWindow->GetParentWindow(false); NS_ENSURE_TRUE(destWindow, ); } UINT internalMessage = GetInternalMessage(aMsg); ::PostMessage(destWindow->mWnd, internalMessage, aWParam, aLParam); return; } // If the window under cursor is not in our process, it means: // 1. The window may be a plugin window (GeckoPluginWindow or its descendant). // 2. The window may be another application's window. HWND pluginWnd = FindOurProcessWindow(underCursorWnd); if (!pluginWnd) { // If there is no plugin window in ancestors of the window under cursor, // the window is for another applications (case 2). // We don't need to handle this message. return; } // If we're a plugin window (MozillaWindowClass) and cursor in this window, // the message shouldn't go to plugin's wndproc again. So, we should handle // it on parent window. However, note that the DOM event may cause accessing // the plugin. Therefore, we should unlock the plugin process by using // PostMessage(). if (mWindowType == eWindowType_plugin && pluginWnd == mWnd) { nsWindow* destWindow = GetParentWindow(false); NS_ENSURE_TRUE(destWindow, ); UINT internalMessage = GetInternalMessage(aMsg); ::PostMessage(destWindow->mWnd, internalMessage, aWParam, aLParam); return; } // If the window is a part of plugin, we should post the message to it. ::PostMessage(underCursorWnd, aMsg, aWParam, aLParam); } /** * OnScroll() is called when ProcessMessage() handles WM_VSCROLL or WM_HSCROLL. * aMsg may be WM_VSCROLL or WM_HSCROLL. */ bool nsWindow::OnScroll(UINT aMsg, WPARAM aWParam, LPARAM aLParam) { static PRInt8 sMouseWheelEmulation = -1; if (sMouseWheelEmulation < 0) { bool emulate = Preferences::GetBool("mousewheel.emulate_at_wm_scroll", false); sMouseWheelEmulation = PRInt8(emulate); } if (aLParam || sMouseWheelEmulation) { // Scroll message generated by Thinkpad Trackpoint Driver or similar // Treat as a mousewheel message and scroll appropriately LRESULT retVal; OnMouseWheel(aMsg, aWParam, aLParam, &retVal); // Always consume the scroll message if we try to emulate mouse wheel // action. return true; } // Scroll message generated by external application nsContentCommandEvent command(true, NS_CONTENT_COMMAND_SCROLL, this); command.mScroll.mIsHorizontal = (aMsg == WM_HSCROLL); switch (LOWORD(aWParam)) { case SB_LINEUP: // SB_LINELEFT command.mScroll.mUnit = nsContentCommandEvent::eCmdScrollUnit_Line; command.mScroll.mAmount = -1; break; case SB_LINEDOWN: // SB_LINERIGHT command.mScroll.mUnit = nsContentCommandEvent::eCmdScrollUnit_Line; command.mScroll.mAmount = 1; break; case SB_PAGEUP: // SB_PAGELEFT command.mScroll.mUnit = nsContentCommandEvent::eCmdScrollUnit_Page; command.mScroll.mAmount = -1; break; case SB_PAGEDOWN: // SB_PAGERIGHT command.mScroll.mUnit = nsContentCommandEvent::eCmdScrollUnit_Page; command.mScroll.mAmount = 1; break; case SB_TOP: // SB_LEFT command.mScroll.mUnit = nsContentCommandEvent::eCmdScrollUnit_Whole; command.mScroll.mAmount = -1; break; case SB_BOTTOM: // SB_RIGHT command.mScroll.mUnit = nsContentCommandEvent::eCmdScrollUnit_Whole; command.mScroll.mAmount = 1; break; default: return false; } // XXX If this is a plugin window, we should dispatch the event from // parent window. DispatchWindowEvent(&command); return true; } /** * OnScrollInternal() is called when ProcessMessage() handles MOZ_WM_VSCROLL or * MOZ_WM_HSCROLL but aMsg may be WM_VSCROLL or WM_HSCROLL. * These internal messages used only when OnScroll() tries to emulate mouse * wheel action for the WM_VSCROLL or WM_HSCROLL message. */ void nsWindow::OnScrollInternal(UINT aMsg, WPARAM aWParam, LPARAM aLParam) { nsMouseScrollEvent scrollevent(true, NS_MOUSE_SCROLL, this); scrollevent.scrollFlags = (aMsg == WM_VSCROLL) ? nsMouseScrollEvent::kIsVertical : nsMouseScrollEvent::kIsHorizontal; switch (LOWORD(aWParam)) { case SB_PAGEDOWN: scrollevent.scrollFlags |= nsMouseScrollEvent::kIsFullPage; case SB_LINEDOWN: scrollevent.delta = 1; break; case SB_PAGEUP: scrollevent.scrollFlags |= nsMouseScrollEvent::kIsFullPage; case SB_LINEUP: scrollevent.delta = -1; break; default: return; } scrollevent.isShift = IS_VK_DOWN(NS_VK_SHIFT); scrollevent.isControl = IS_VK_DOWN(NS_VK_CONTROL); scrollevent.isMeta = false; scrollevent.isAlt = IS_VK_DOWN(NS_VK_ALT); InitEvent(scrollevent); if (mEventCallback) { DispatchWindowEvent(&scrollevent); } } // Can be overriden. Controls auto-erase of background. bool nsWindow::AutoErase(HDC dc) { return false; } void nsWindow::AllowD3D9Callback(nsWindow *aWindow) { if (aWindow->mLayerManager) { aWindow->mLayerManager->Destroy(); aWindow->mLayerManager = NULL; } } void nsWindow::AllowD3D9WithReinitializeCallback(nsWindow *aWindow) { if (aWindow->mLayerManager) { aWindow->mLayerManager->Destroy(); aWindow->mLayerManager = NULL; (void) aWindow->GetLayerManager(); } } void nsWindow::StartAllowingD3D9(bool aReinitialize) { sAllowD3D9 = true; LayerManagerPrefs prefs; GetLayerManagerPrefs(&prefs); if (prefs.mDisableAcceleration) { // The guarantee here is, if there's *any* chance that after we // throw out our layer managers we'd create at least one new, // accelerated one, we *will* throw out all the current layer // managers. We early-return here because currently, if // |disableAcceleration|, we will always use basic managers and // it's a waste to recreate them. // // NB: the above implies that it's eminently possible for us to // skip this early return but still recreate basic managers. // That's OK. It's *not* OK to take this early return when we // *might* have created an accelerated manager. return; } if (aReinitialize) { EnumAllWindows(AllowD3D9WithReinitializeCallback); } else { EnumAllWindows(AllowD3D9Callback); } } bool nsWindow::HasBogusPopupsDropShadowOnMultiMonitor() { if (sHasBogusPopupsDropShadowOnMultiMonitor == TRI_UNKNOWN) { // Since any change in the preferences requires a restart, this can be // done just once. // Check for Direct2D first. sHasBogusPopupsDropShadowOnMultiMonitor = gfxWindowsPlatform::GetPlatform()->GetRenderMode() == gfxWindowsPlatform::RENDER_DIRECT2D ? TRI_TRUE : TRI_FALSE; if (!sHasBogusPopupsDropShadowOnMultiMonitor) { // Otherwise check if Direct3D 9 may be used. LayerManagerPrefs prefs; GetLayerManagerPrefs(&prefs); if (!prefs.mDisableAcceleration && !prefs.mPreferOpenGL) { nsCOMPtr gfxInfo = do_GetService("@mozilla.org/gfx/info;1"); if (gfxInfo) { PRInt32 status; if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DIRECT3D_9_LAYERS, &status))) { if (status == nsIGfxInfo::FEATURE_NO_INFO || prefs.mForceAcceleration) { sHasBogusPopupsDropShadowOnMultiMonitor = TRI_TRUE; } } } } } } return !!sHasBogusPopupsDropShadowOnMultiMonitor; } void nsWindow::OnSysColorChanged() { if (mWindowType == eWindowType_invisible) { ::EnumThreadWindows(GetCurrentThreadId(), nsWindow::BroadcastMsg, WM_SYSCOLORCHANGE); } else { // Note: This is sent for child windows as well as top-level windows. // The Win32 toolkit normally only sends these events to top-level windows. // But we cycle through all of the childwindows and send it to them as well // so all presentations get notified properly. // See nsWindow::GlobalMsgWindowProc. DispatchStandardEvent(NS_SYSCOLORCHANGED); } } /************************************************************** ************************************************************** ** ** BLOCK: IME management and accessibility ** ** Handles managing IME input and accessibility. ** ************************************************************** **************************************************************/ NS_IMETHODIMP nsWindow::ResetInputState() { #ifdef DEBUG_KBSTATE PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("ResetInputState\n")); #endif #ifdef NS_ENABLE_TSF nsTextStore::CommitComposition(false); #endif //NS_ENABLE_TSF nsIMM32Handler::CommitComposition(this); return NS_OK; } NS_IMETHODIMP_(void) nsWindow::SetInputContext(const InputContext& aContext, const InputContextAction& aAction) { #ifdef NS_ENABLE_TSF nsTextStore::SetInputContext(aContext); #endif //NS_ENABLE_TSF if (nsIMM32Handler::IsComposing()) { ResetInputState(); } mInputContext = aContext; bool enable = (mInputContext.mIMEState.mEnabled == IMEState::ENABLED || mInputContext.mIMEState.mEnabled == IMEState::PLUGIN); AssociateDefaultIMC(enable); if (enable && mInputContext.mIMEState.mOpen != IMEState::DONT_CHANGE_OPEN_STATE) { bool open = (mInputContext.mIMEState.mOpen == IMEState::OPEN); #ifdef NS_ENABLE_TSF nsTextStore::SetIMEOpenState(open); #endif //NS_ENABLE_TSF nsIMEContext IMEContext(mWnd); if (IMEContext.IsValid()) { ::ImmSetOpenStatus(IMEContext.get(), open); } } } NS_IMETHODIMP_(InputContext) nsWindow::GetInputContext() { mInputContext.mIMEState.mOpen = IMEState::CLOSED; switch (mInputContext.mIMEState.mEnabled) { case IMEState::ENABLED: case IMEState::PLUGIN: { nsIMEContext IMEContext(mWnd); if (IMEContext.IsValid()) { mInputContext.mIMEState.mOpen = ::ImmGetOpenStatus(IMEContext.get()) ? IMEState::OPEN : IMEState::CLOSED; } #ifdef NS_ENABLE_TSF if (mInputContext.mIMEState.mOpen == IMEState::CLOSED && nsTextStore::GetIMEOpenState()) { mInputContext.mIMEState.mOpen = IMEState::OPEN; } #endif //NS_ENABLE_TSF } } return mInputContext; } NS_IMETHODIMP nsWindow::CancelIMEComposition() { #ifdef DEBUG_KBSTATE PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("CancelIMEComposition\n")); #endif #ifdef NS_ENABLE_TSF nsTextStore::CommitComposition(true); #endif //NS_ENABLE_TSF nsIMM32Handler::CancelComposition(this); return NS_OK; } NS_IMETHODIMP nsWindow::GetToggledKeyState(PRUint32 aKeyCode, bool* aLEDState) { #ifdef DEBUG_KBSTATE PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("GetToggledKeyState\n")); #endif NS_ENSURE_ARG_POINTER(aLEDState); *aLEDState = (::GetKeyState(aKeyCode) & 1) != 0; return NS_OK; } #ifdef NS_ENABLE_TSF NS_IMETHODIMP nsWindow::OnIMEFocusChange(bool aFocus) { nsresult rv = nsTextStore::OnFocusChange(aFocus, this, mInputContext.mIMEState.mEnabled); if (rv == NS_ERROR_NOT_AVAILABLE) rv = NS_ERROR_NOT_IMPLEMENTED; // TSF is not enabled, maybe. return rv; } NS_IMETHODIMP nsWindow::OnIMETextChange(PRUint32 aStart, PRUint32 aOldEnd, PRUint32 aNewEnd) { return nsTextStore::OnTextChange(aStart, aOldEnd, aNewEnd); } NS_IMETHODIMP nsWindow::OnIMESelectionChange(void) { return nsTextStore::OnSelectionChange(); } #endif //NS_ENABLE_TSF bool nsWindow::AssociateDefaultIMC(bool aAssociate) { nsIMEContext IMEContext(mWnd); if (aAssociate) { BOOL ret = ::ImmAssociateContextEx(mWnd, NULL, IACE_DEFAULT); #ifdef DEBUG // Note that if IME isn't available with current keyboard layout, // IMM might not be installed on the system such as English Windows. // On such system, IMM APIs always fail. NS_ASSERTION(ret || !nsIMM32Handler::IsIMEAvailable(), "ImmAssociateContextEx failed to restore default IMC"); if (ret) { nsIMEContext newIMEContext(mWnd); NS_ASSERTION(!IMEContext.get() || newIMEContext.get() == IMEContext.get(), "Unknown IMC had been associated"); } #endif return ret && !IMEContext.get(); } if (mOnDestroyCalled) { // If OnDestroy() has been called, we shouldn't disassociate the default // IMC at destroying the window. return false; } if (!IMEContext.get()) { return false; // already disassociated } BOOL ret = ::ImmAssociateContextEx(mWnd, NULL, 0); NS_ASSERTION(ret, "ImmAssociateContextEx failed to disassociate the IMC"); return ret != FALSE; } #ifdef ACCESSIBILITY #ifdef DEBUG_WMGETOBJECT #define NS_LOG_WMGETOBJECT_WNDACC(aWnd) \ nsAccessible* acc = aWnd ? \ aWnd->DispatchAccessibleEvent(NS_GETACCESSIBLE) : nsnull; \ PR_LOG(gWindowsLog, PR_LOG_ALWAYS, (" acc: %p", acc)); \ if (acc) { \ nsAutoString name; \ acc->GetName(name); \ PR_LOG(gWindowsLog, PR_LOG_ALWAYS, \ (", accname: %s", NS_ConvertUTF16toUTF8(name).get())); \ nsCOMPtr doc = do_QueryObject(acc); \ void *hwnd = nsnull; \ doc->GetWindowHandle(&hwnd); \ PR_LOG(gWindowsLog, PR_LOG_ALWAYS, (", acc hwnd: %d", hwnd)); \ } #define NS_LOG_WMGETOBJECT_THISWND \ { \ PR_LOG(gWindowsLog, PR_LOG_ALWAYS, \ ("\n*******Get Doc Accessible*******\nOrig Window: ")); \ PR_LOG(gWindowsLog, PR_LOG_ALWAYS, \ ("\n {\n HWND: %d, parent HWND: %d, wndobj: %p,\n", \ mWnd, ::GetParent(mWnd), this)); \ NS_LOG_WMGETOBJECT_WNDACC(this) \ PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("\n }\n")); \ } #define NS_LOG_WMGETOBJECT_WND(aMsg, aHwnd) \ { \ nsWindow* wnd = GetNSWindowPtr(aHwnd); \ PR_LOG(gWindowsLog, PR_LOG_ALWAYS, \ ("Get " aMsg ":\n {\n HWND: %d, parent HWND: %d, wndobj: %p,\n", \ aHwnd, ::GetParent(aHwnd), wnd)); \ NS_LOG_WMGETOBJECT_WNDACC(wnd); \ PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("\n }\n")); \ } #else #define NS_LOG_WMGETOBJECT_THISWND #define NS_LOG_WMGETOBJECT_WND(aMsg, aHwnd) #endif // DEBUG_WMGETOBJECT nsAccessible* nsWindow::GetRootAccessible() { // We want the ability to forcibly disable a11y on windows, because // some non-a11y-related components attempt to bring it up. See bug // 538530 for details; we have a pref here that allows it to be disabled // for performance and testing resons. // // This pref is checked only once, and the browser needs a restart to // pick up any changes. static int accForceDisable = -1; if (accForceDisable == -1) { const char* kPrefName = "accessibility.win32.force_disabled"; if (Preferences::GetBool(kPrefName, false)) { accForceDisable = 1; } else { accForceDisable = 0; } } // If the pref was true, return null here, disabling a11y. if (accForceDisable) return nsnull; nsWindow::sIsAccessibilityOn = TRUE; if (mInDtor || mOnDestroyCalled || mWindowType == eWindowType_invisible) { return nsnull; } NS_LOG_WMGETOBJECT_THISWND NS_LOG_WMGETOBJECT_WND("This Window", mWnd); return DispatchAccessibleEvent(NS_GETACCESSIBLE); } STDMETHODIMP_(LRESULT) nsWindow::LresultFromObject(REFIID riid, WPARAM wParam, LPUNKNOWN pAcc) { // open the dll dynamically if (!sAccLib) sAccLib =::LoadLibraryW(L"OLEACC.DLL"); if (sAccLib) { if (!sLresultFromObject) sLresultFromObject = (LPFNLRESULTFROMOBJECT)GetProcAddress(sAccLib,"LresultFromObject"); if (sLresultFromObject) return sLresultFromObject(riid,wParam,pAcc); } return 0; } #endif /************************************************************** ************************************************************** ** ** BLOCK: Transparency ** ** Window transparency helpers. ** ************************************************************** **************************************************************/ #ifdef MOZ_XUL void nsWindow::ResizeTranslucentWindow(PRInt32 aNewWidth, PRInt32 aNewHeight, bool force) { if (!force && aNewWidth == mBounds.width && aNewHeight == mBounds.height) return; #ifdef CAIRO_HAS_D2D_SURFACE if (gfxWindowsPlatform::GetPlatform()->GetRenderMode() == gfxWindowsPlatform::RENDER_DIRECT2D) { nsRefPtr newSurface = new gfxD2DSurface(gfxIntSize(aNewWidth, aNewHeight), gfxASurface::ImageFormatARGB32); mTransparentSurface = newSurface; mMemoryDC = nsnull; } else #endif { nsRefPtr newSurface = new gfxWindowsSurface(gfxIntSize(aNewWidth, aNewHeight), gfxASurface::ImageFormatARGB32); mTransparentSurface = newSurface; mMemoryDC = newSurface->GetDC(); } } void nsWindow::SetWindowTranslucencyInner(nsTransparencyMode aMode) { if (aMode == mTransparencyMode) return; // stop on dialogs and popups! HWND hWnd = GetTopLevelHWND(mWnd, true); nsWindow* parent = GetNSWindowPtr(hWnd); if (!parent) { NS_WARNING("Trying to use transparent chrome in an embedded context"); return; } if (parent != this) { NS_WARNING("Setting SetWindowTranslucencyInner on a parent this is not us!"); } if (aMode == eTransparencyTransparent) { // If we're switching to the use of a transparent window, hide the chrome // on our parent. HideWindowChrome(true); } else if (mHideChrome && mTransparencyMode == eTransparencyTransparent) { // if we're switching out of transparent, re-enable our parent's chrome. HideWindowChrome(false); } LONG_PTR style = ::GetWindowLongPtrW(hWnd, GWL_STYLE), exStyle = ::GetWindowLongPtr(hWnd, GWL_EXSTYLE); if (parent->mIsVisible) style |= WS_VISIBLE; if (parent->mSizeMode == nsSizeMode_Maximized) style |= WS_MAXIMIZE; else if (parent->mSizeMode == nsSizeMode_Minimized) style |= WS_MINIMIZE; if (aMode == eTransparencyTransparent) exStyle |= WS_EX_LAYERED; else exStyle &= ~WS_EX_LAYERED; VERIFY_WINDOW_STYLE(style); ::SetWindowLongPtrW(hWnd, GWL_STYLE, style); ::SetWindowLongPtrW(hWnd, GWL_EXSTYLE, exStyle); #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN if (HasGlass()) memset(&mGlassMargins, 0, sizeof mGlassMargins); #endif // #if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN mTransparencyMode = aMode; SetupTranslucentWindowMemoryBitmap(aMode); UpdateGlass(); } void nsWindow::SetupTranslucentWindowMemoryBitmap(nsTransparencyMode aMode) { if (eTransparencyTransparent == aMode) { ResizeTranslucentWindow(mBounds.width, mBounds.height, true); } else { mTransparentSurface = nsnull; mMemoryDC = NULL; } } nsresult nsWindow::UpdateTranslucentWindow() { if (mBounds.IsEmpty()) return NS_OK; ::GdiFlush(); BLENDFUNCTION bf = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA }; SIZE winSize = { mBounds.width, mBounds.height }; POINT srcPos = { 0, 0 }; HWND hWnd = GetTopLevelHWND(mWnd, true); RECT winRect; ::GetWindowRect(hWnd, &winRect); #ifdef CAIRO_HAS_D2D_SURFACE if (gfxWindowsPlatform::GetPlatform()->GetRenderMode() == gfxWindowsPlatform::RENDER_DIRECT2D) { mMemoryDC = static_cast(mTransparentSurface.get())-> GetDC(true); } #endif // perform the alpha blend bool updateSuccesful = ::UpdateLayeredWindow(hWnd, NULL, (POINT*)&winRect, &winSize, mMemoryDC, &srcPos, 0, &bf, ULW_ALPHA); #ifdef CAIRO_HAS_D2D_SURFACE if (gfxWindowsPlatform::GetPlatform()->GetRenderMode() == gfxWindowsPlatform::RENDER_DIRECT2D) { nsIntRect r(0, 0, 0, 0); static_cast(mTransparentSurface.get())->ReleaseDC(&r); } #endif if (!updateSuccesful) { return NS_ERROR_FAILURE; } return NS_OK; } #endif //MOZ_XUL /************************************************************** ************************************************************** ** ** BLOCK: Popup rollup hooks ** ** Deals with CaptureRollup on popup windows. ** ************************************************************** **************************************************************/ // Schedules a timer for a window, so we can rollup after processing the hook event void nsWindow::ScheduleHookTimer(HWND aWnd, UINT aMsgId) { // In some cases multiple hooks may be scheduled // so ignore any other requests once one timer is scheduled if (sHookTimerId == 0) { // Remember the window handle and the message ID to be used later sRollupMsgId = aMsgId; sRollupMsgWnd = aWnd; // Schedule native timer for doing the rollup after // this event is done being processed sHookTimerId = ::SetTimer(NULL, 0, 0, (TIMERPROC)HookTimerForPopups); NS_ASSERTION(sHookTimerId, "Timer couldn't be created."); } } #ifdef POPUP_ROLLUP_DEBUG_OUTPUT int gLastMsgCode = 0; extern MSGFEventMsgInfo gMSGFEvents[]; #endif // Process Menu messages, rollup when popup is clicked. LRESULT CALLBACK nsWindow::MozSpecialMsgFilter(int code, WPARAM wParam, LPARAM lParam) { #ifdef POPUP_ROLLUP_DEBUG_OUTPUT if (sProcessHook) { MSG* pMsg = (MSG*)lParam; int inx = 0; while (gMSGFEvents[inx].mId != code && gMSGFEvents[inx].mStr != NULL) { inx++; } if (code != gLastMsgCode) { if (gMSGFEvents[inx].mId == code) { #ifdef DEBUG PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("MozSpecialMessageProc - code: 0x%X - %s hw: %p\n", code, gMSGFEvents[inx].mStr, pMsg->hwnd)); #endif } else { #ifdef DEBUG PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("MozSpecialMessageProc - code: 0x%X - %d hw: %p\n", code, gMSGFEvents[inx].mId, pMsg->hwnd)); #endif } gLastMsgCode = code; } PrintEvent(pMsg->message, FALSE, FALSE); } #endif // #ifdef POPUP_ROLLUP_DEBUG_OUTPUT if (sProcessHook && code == MSGF_MENU) { MSG* pMsg = (MSG*)lParam; ScheduleHookTimer( pMsg->hwnd, pMsg->message); } return ::CallNextHookEx(sMsgFilterHook, code, wParam, lParam); } // Process all mouse messages. Roll up when a click is in a native window // that doesn't have an nsIWidget. LRESULT CALLBACK nsWindow::MozSpecialMouseProc(int code, WPARAM wParam, LPARAM lParam) { if (sProcessHook) { switch (GetNativeMessage(wParam)) { case WM_LBUTTONDOWN: case WM_RBUTTONDOWN: case WM_MBUTTONDOWN: case WM_MOUSEWHEEL: case WM_MOUSEHWHEEL: { MOUSEHOOKSTRUCT* ms = (MOUSEHOOKSTRUCT*)lParam; nsIWidget* mozWin = (nsIWidget*)GetNSWindowPtr(ms->hwnd); if (mozWin) { // If this window is windowed plugin window, the mouse events are not // sent to us. if (static_cast(mozWin)->mWindowType == eWindowType_plugin) ScheduleHookTimer(ms->hwnd, (UINT)wParam); } else { ScheduleHookTimer(ms->hwnd, (UINT)wParam); } break; } } } return ::CallNextHookEx(sCallMouseHook, code, wParam, lParam); } // Process all messages. Roll up when the window is moving, or // is resizing or when maximized or mininized. LRESULT CALLBACK nsWindow::MozSpecialWndProc(int code, WPARAM wParam, LPARAM lParam) { #ifdef POPUP_ROLLUP_DEBUG_OUTPUT if (sProcessHook) { CWPSTRUCT* cwpt = (CWPSTRUCT*)lParam; PrintEvent(cwpt->message, FALSE, FALSE); } #endif if (sProcessHook) { CWPSTRUCT* cwpt = (CWPSTRUCT*)lParam; if (cwpt->message == WM_MOVING || cwpt->message == WM_SIZING || cwpt->message == WM_GETMINMAXINFO) { ScheduleHookTimer(cwpt->hwnd, (UINT)cwpt->message); } } return ::CallNextHookEx(sCallProcHook, code, wParam, lParam); } // Register the special "hooks" for dropdown processing. void nsWindow::RegisterSpecialDropdownHooks() { NS_ASSERTION(!sMsgFilterHook, "sMsgFilterHook must be NULL!"); NS_ASSERTION(!sCallProcHook, "sCallProcHook must be NULL!"); DISPLAY_NMM_PRT("***************** Installing Msg Hooks ***************\n"); // Install msg hook for moving the window and resizing if (!sMsgFilterHook) { DISPLAY_NMM_PRT("***** Hooking sMsgFilterHook!\n"); sMsgFilterHook = SetWindowsHookEx(WH_MSGFILTER, MozSpecialMsgFilter, NULL, GetCurrentThreadId()); #ifdef POPUP_ROLLUP_DEBUG_OUTPUT if (!sMsgFilterHook) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("***** SetWindowsHookEx is NOT installed for WH_MSGFILTER!\n")); } #endif } // Install msg hook for menus if (!sCallProcHook) { DISPLAY_NMM_PRT("***** Hooking sCallProcHook!\n"); sCallProcHook = SetWindowsHookEx(WH_CALLWNDPROC, MozSpecialWndProc, NULL, GetCurrentThreadId()); #ifdef POPUP_ROLLUP_DEBUG_OUTPUT if (!sCallProcHook) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("***** SetWindowsHookEx is NOT installed for WH_CALLWNDPROC!\n")); } #endif } // Install msg hook for the mouse if (!sCallMouseHook) { DISPLAY_NMM_PRT("***** Hooking sCallMouseHook!\n"); sCallMouseHook = SetWindowsHookEx(WH_MOUSE, MozSpecialMouseProc, NULL, GetCurrentThreadId()); #ifdef POPUP_ROLLUP_DEBUG_OUTPUT if (!sCallMouseHook) { PR_LOG(gWindowsLog, PR_LOG_ALWAYS, ("***** SetWindowsHookEx is NOT installed for WH_MOUSE!\n")); } #endif } } // Unhook special message hooks for dropdowns. void nsWindow::UnregisterSpecialDropdownHooks() { DISPLAY_NMM_PRT("***************** De-installing Msg Hooks ***************\n"); if (sCallProcHook) { DISPLAY_NMM_PRT("***** Unhooking sCallProcHook!\n"); if (!::UnhookWindowsHookEx(sCallProcHook)) { DISPLAY_NMM_PRT("***** UnhookWindowsHookEx failed for sCallProcHook!\n"); } sCallProcHook = NULL; } if (sMsgFilterHook) { DISPLAY_NMM_PRT("***** Unhooking sMsgFilterHook!\n"); if (!::UnhookWindowsHookEx(sMsgFilterHook)) { DISPLAY_NMM_PRT("***** UnhookWindowsHookEx failed for sMsgFilterHook!\n"); } sMsgFilterHook = NULL; } if (sCallMouseHook) { DISPLAY_NMM_PRT("***** Unhooking sCallMouseHook!\n"); if (!::UnhookWindowsHookEx(sCallMouseHook)) { DISPLAY_NMM_PRT("***** UnhookWindowsHookEx failed for sCallMouseHook!\n"); } sCallMouseHook = NULL; } } // This timer is designed to only fire one time at most each time a "hook" function // is used to rollup the dropdown. In some cases, the timer may be scheduled from the // hook, but that hook event or a subsequent event may roll up the dropdown before // this timer function is executed. // // For example, if an MFC control takes focus, the combobox will lose focus and rollup // before this function fires. VOID CALLBACK nsWindow::HookTimerForPopups(HWND hwnd, UINT uMsg, UINT idEvent, DWORD dwTime) { if (sHookTimerId != 0) { // if the window is NULL then we need to use the ID to kill the timer BOOL status = ::KillTimer(NULL, sHookTimerId); NS_ASSERTION(status, "Hook Timer was not killed."); sHookTimerId = 0; } if (sRollupMsgId != 0) { // Note: DealWithPopups does the check to make sure that // sRollupListener and sRollupWidget are not NULL LRESULT popupHandlingResult; nsAutoRollup autoRollup; DealWithPopups(sRollupMsgWnd, sRollupMsgId, 0, 0, &popupHandlingResult); sRollupMsgId = 0; sRollupMsgWnd = NULL; } } BOOL CALLBACK nsWindow::ClearResourcesCallback(HWND aWnd, LPARAM aMsg) { nsWindow *window = nsWindow::GetNSWindowPtr(aWnd); if (window) { window->ClearCachedResources(); } return TRUE; } void nsWindow::ClearCachedResources() { #ifdef CAIRO_HAS_D2D_SURFACE mD2DWindowSurface = nsnull; #endif if (mLayerManager && mLayerManager->GetBackendType() == LayerManager::LAYERS_BASIC) { static_cast(mLayerManager.get())-> ClearCachedResources(); } ::EnumChildWindows(mWnd, nsWindow::ClearResourcesCallback, 0); } static bool IsDifferentThreadWindow(HWND aWnd) { return ::GetCurrentThreadId() != ::GetWindowThreadProcessId(aWnd, NULL); } bool nsWindow::EventIsInsideWindow(UINT Msg, nsWindow* aWindow) { RECT r; if (Msg == WM_ACTIVATEAPP) // don't care about activation/deactivation return false; ::GetWindowRect(aWindow->mWnd, &r); DWORD pos = ::GetMessagePos(); POINT mp; mp.x = GET_X_LPARAM(pos); mp.y = GET_Y_LPARAM(pos); // was the event inside this window? return (bool) PtInRect(&r, mp); } // Handle events that may cause a popup (combobox, XPMenu, etc) to need to rollup. BOOL nsWindow::DealWithPopups(HWND inWnd, UINT inMsg, WPARAM inWParam, LPARAM inLParam, LRESULT* outResult) { if (sRollupListener && sRollupWidget && ::IsWindowVisible(inWnd)) { inMsg = GetNativeMessage(inMsg); if (inMsg == WM_LBUTTONDOWN || inMsg == WM_RBUTTONDOWN || inMsg == WM_MBUTTONDOWN || inMsg == WM_MOUSEWHEEL || inMsg == WM_MOUSEHWHEEL || inMsg == WM_ACTIVATE || (inMsg == WM_KILLFOCUS && IsDifferentThreadWindow((HWND)inWParam)) || inMsg == WM_NCRBUTTONDOWN || inMsg == WM_MOVING || inMsg == WM_SIZING || inMsg == WM_NCLBUTTONDOWN || inMsg == WM_NCMBUTTONDOWN || inMsg == WM_MOUSEACTIVATE || inMsg == WM_ACTIVATEAPP || inMsg == WM_MENUSELECT) { // Rollup if the event is outside the popup. bool rollup = !nsWindow::EventIsInsideWindow(inMsg, (nsWindow*)sRollupWidget); if (rollup && (inMsg == WM_MOUSEWHEEL || inMsg == WM_MOUSEHWHEEL)) { rollup = sRollupListener->ShouldRollupOnMouseWheelEvent(); *outResult = true; } // If we're dealing with menus, we probably have submenus and we don't // want to rollup if the click is in a parent menu of the current submenu. PRUint32 popupsToRollup = PR_UINT32_MAX; if (rollup) { if ( sRollupListener ) { nsAutoTArray widgetChain; PRUint32 sameTypeCount = sRollupListener->GetSubmenuWidgetChain(&widgetChain); for ( PRUint32 i = 0; i < widgetChain.Length(); ++i ) { nsIWidget* widget = widgetChain[i]; if ( nsWindow::EventIsInsideWindow(inMsg, (nsWindow*)widget) ) { // don't roll up if the mouse event occurred within a menu of the // same type. If the mouse event occurred in a menu higher than // that, roll up, but pass the number of popups to Rollup so // that only those of the same type close up. if (i < sameTypeCount) { rollup = false; } else { popupsToRollup = sameTypeCount; } break; } } // foreach parent menu widget } // if rollup listener knows about menus } if (inMsg == WM_MOUSEACTIVATE && popupsToRollup == PR_UINT32_MAX) { // Prevent the click inside the popup from causing a change in window // activation. Since the popup is shown non-activated, we need to eat // any requests to activate the window while it is displayed. Windows // will automatically activate the popup on the mousedown otherwise. if (!rollup) { *outResult = MA_NOACTIVATE; return TRUE; } else { UINT uMsg = HIWORD(inLParam); if (uMsg == WM_MOUSEMOVE) { // WM_MOUSEACTIVATE cause by moving the mouse - X-mouse (eg. TweakUI) // must be enabled in Windows. rollup = sRollupListener->ShouldRollupOnMouseActivate(); if (!rollup) { *outResult = MA_NOACTIVATE; return true; } } } } // if we've still determined that we should still rollup everything, do it. else if (rollup) { // sRollupConsumeEvent may be modified by // nsIRollupListener::Rollup. bool consumeRollupEvent = sRollupConsumeEvent; // only need to deal with the last rollup for left mouse down events. NS_ASSERTION(!mLastRollup, "mLastRollup is null"); mLastRollup = sRollupListener->Rollup(popupsToRollup, inMsg == WM_LBUTTONDOWN); NS_IF_ADDREF(mLastRollup); // Tell hook to stop processing messages sProcessHook = false; sRollupMsgId = 0; sRollupMsgWnd = NULL; // return TRUE tells Windows that the event is consumed, // false allows the event to be dispatched // // So if we are NOT supposed to be consuming events, let it go through if (consumeRollupEvent && inMsg != WM_RBUTTONDOWN) { *outResult = MA_ACTIVATE; // However, don't activate panels if (inMsg == WM_MOUSEACTIVATE) { nsWindow* activateWindow = GetNSWindowPtr(inWnd); if (activateWindow) { nsWindowType wintype; activateWindow->GetWindowType(wintype); if (wintype == eWindowType_popup && activateWindow->PopupType() == ePopupTypePanel) { *outResult = MA_NOACTIVATE; } } } return TRUE; } // if we are only rolling up some popups, don't activate and don't let // the event go through. This prevents clicks menus higher in the // chain from opening when a context menu is open if (popupsToRollup != PR_UINT32_MAX && inMsg == WM_MOUSEACTIVATE) { *outResult = MA_NOACTIVATEANDEAT; return TRUE; } } } // if event that might trigger a popup to rollup } // if rollup listeners registered return FALSE; } /************************************************************** ************************************************************** ** ** BLOCK: Misc. utility methods and functions. ** ** General use. ** ************************************************************** **************************************************************/ // nsModifierKeyState used in various character processing. nsModifierKeyState::nsModifierKeyState() { mIsShiftDown = IS_VK_DOWN(NS_VK_SHIFT); mIsControlDown = IS_VK_DOWN(NS_VK_CONTROL); mIsAltDown = IS_VK_DOWN(NS_VK_ALT); } PRInt32 nsWindow::GetWindowsVersion() { static PRInt32 version = 0; static bool didCheck = false; if (!didCheck) { didCheck = true; OSVERSIONINFOEX osInfo; osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); // This cast is safe and supposed to be here, don't worry ::GetVersionEx((OSVERSIONINFO*)&osInfo); version = (osInfo.dwMajorVersion & 0xff) << 8 | (osInfo.dwMinorVersion & 0xff); } return version; } // Note that the result of GetTopLevelWindow method can be different from the // result of GetTopLevelHWND method. The result can be non-floating window. // Because our top level window may be contained in another window which is // not managed by us. nsWindow* nsWindow::GetTopLevelWindow(bool aStopOnDialogOrPopup) { nsWindow* curWindow = this; while (true) { if (aStopOnDialogOrPopup) { switch (curWindow->mWindowType) { case eWindowType_dialog: case eWindowType_popup: return curWindow; default: break; } } // Retrieve the top level parent or owner window nsWindow* parentWindow = curWindow->GetParentWindow(true); if (!parentWindow) return curWindow; curWindow = parentWindow; } } // Note that the result of GetTopLevelHWND can be different from the result // of GetTopLevelWindow method. Because this is checking whether the window // is top level only in Win32 window system. Therefore, the result window // may not be managed by us. HWND nsWindow::GetTopLevelHWND(HWND aWnd, bool aStopIfNotChild, bool aStopIfNotPopup) { HWND curWnd = aWnd; HWND topWnd = NULL; HWND upWnd = NULL; while (curWnd) { topWnd = curWnd; if (aStopIfNotChild) { DWORD_PTR style = ::GetWindowLongPtrW(curWnd, GWL_STYLE); VERIFY_WINDOW_STYLE(style); if (!(style & WS_CHILD)) // first top-level window break; } upWnd = ::GetParent(curWnd); // Parent or owner (if has no parent) // GetParent will only return the owner if the passed in window // has the WS_POPUP style. if (!upWnd && !aStopIfNotPopup) { upWnd = ::GetWindow(curWnd, GW_OWNER); } curWnd = upWnd; } return topWnd; } static BOOL CALLBACK gEnumWindowsProc(HWND hwnd, LPARAM lParam) { DWORD pid; ::GetWindowThreadProcessId(hwnd, &pid); if (pid == GetCurrentProcessId() && ::IsWindowVisible(hwnd)) { gWindowsVisible = true; return FALSE; } return TRUE; } bool nsWindow::CanTakeFocus() { gWindowsVisible = false; EnumWindows(gEnumWindowsProc, 0); if (!gWindowsVisible) { return true; } else { HWND fgWnd = ::GetForegroundWindow(); if (!fgWnd) { return true; } DWORD pid; GetWindowThreadProcessId(fgWnd, &pid); if (pid == GetCurrentProcessId()) { return true; } } return false; } void nsWindow::GetMainWindowClass(nsAString& aClass) { NS_PRECONDITION(aClass.IsEmpty(), "aClass should be empty string"); nsresult rv = Preferences::GetString("ui.window_class_override", &aClass); if (NS_FAILED(rv) || aClass.IsEmpty()) { aClass.AssignASCII(sDefaultMainWindowClass); } } /** * Gets the Boolean value of a pref used to enable or disable an input * workaround (like the Trackpoint hack). The pref can take values 0 (for * disabled), 1 (for enabled) or -1 (to automatically detect whether to * enable the workaround). * * @param aPrefName The name of the pref. * @param aValueIfAutomatic Whether the given input workaround should be * enabled by default. */ bool nsWindow::GetInputWorkaroundPref(const char* aPrefName, bool aValueIfAutomatic) { if (!aPrefName) { return aValueIfAutomatic; } PRInt32 lHackValue = 0; if (NS_SUCCEEDED(Preferences::GetInt(aPrefName, &lHackValue))) { switch (lHackValue) { case 0: // disabled return false; case 1: // enabled return true; default: // -1: autodetect break; } } return aValueIfAutomatic; } bool nsWindow::UseTrackPointHack() { return GetInputWorkaroundPref("ui.trackpoint_hack.enabled", sDefaultTrackPointHack); } static bool HasRegistryKey(HKEY aRoot, PRUnichar* aName) { HKEY key; LONG result = ::RegOpenKeyExW(aRoot, aName, 0, KEY_READ | KEY_WOW64_32KEY, &key); if (result != ERROR_SUCCESS) { result = ::RegOpenKeyExW(aRoot, aName, 0, KEY_READ | KEY_WOW64_64KEY, &key); if (result != ERROR_SUCCESS) return false; } ::RegCloseKey(key); return true; } /** * Gets the value of a string-typed registry value. * * @param aRoot The registry root to search in. * @param aKeyName The name of the registry key to open. * @param aValueName The name of the registry value in the specified key whose * value is to be retrieved. Can be null, to retrieve the key's unnamed/ * default value. * @param aBuffer The buffer into which to store the string value. Can be null, * in which case the return value indicates just whether the value exists. * @param aBufferLength The size of aBuffer, in bytes. * @return Whether the value exists and is a string. */ bool nsWindow::GetRegistryKey(HKEY aRoot, const PRUnichar* aKeyName, const PRUnichar* aValueName, PRUnichar* aBuffer, DWORD aBufferLength) { if (!aKeyName) return false; HKEY key; LONG result = ::RegOpenKeyExW(aRoot, aKeyName, NULL, KEY_READ | KEY_WOW64_32KEY, &key); if (result != ERROR_SUCCESS) { result = ::RegOpenKeyExW(aRoot, aKeyName, NULL, KEY_READ | KEY_WOW64_64KEY, &key); if (result != ERROR_SUCCESS) return false; } DWORD type; result = ::RegQueryValueExW(key, aValueName, NULL, &type, (BYTE*) aBuffer, &aBufferLength); ::RegCloseKey(key); if (result != ERROR_SUCCESS || type != REG_SZ) return false; if (aBuffer) aBuffer[aBufferLength / sizeof(*aBuffer) - 1] = 0; return true; } static bool IsObsoleteSynapticsDriver() { PRUnichar buf[40]; bool foundKey = nsWindow::GetRegistryKey(HKEY_LOCAL_MACHINE, L"Software\\Synaptics\\SynTP\\Install", L"DriverVersion", buf, sizeof buf); if (!foundKey) return false; int majorVersion = wcstol(buf, NULL, 10); int minorVersion = 0; PRUnichar* p = wcschr(buf, L'.'); if (p) { minorVersion = wcstol(p + 1, NULL, 10); } return majorVersion < 15 || majorVersion == 15 && minorVersion == 0; } static PRInt32 GetElantechDriverMajorVersion() { PRUnichar buf[40]; // The driver version is found in one of these two registry keys. bool foundKey = nsWindow::GetRegistryKey(HKEY_CURRENT_USER, L"Software\\Elantech\\MainOption", L"DriverVersion", buf, sizeof buf); if (!foundKey) foundKey = nsWindow::GetRegistryKey(HKEY_CURRENT_USER, L"Software\\Elantech", L"DriverVersion", buf, sizeof buf); if (!foundKey) return false; // Assume that the major version number can be found just after a space // or at the start of the string. for (PRUnichar* p = buf; *p; p++) { if (*p >= L'0' && *p <= L'9' && (p == buf || *(p - 1) == L' ')) { return wcstol(p, NULL, 10); } } return 0; } void nsWindow::InitInputWorkaroundPrefDefaults() { PRUint32 elantechDriverVersion = GetElantechDriverMajorVersion(); if (HasRegistryKey(HKEY_CURRENT_USER, L"Software\\Lenovo\\TrackPoint")) { sDefaultTrackPointHack = true; } else if (HasRegistryKey(HKEY_CURRENT_USER, L"Software\\Lenovo\\UltraNav")) { sDefaultTrackPointHack = true; } else if (HasRegistryKey(HKEY_CURRENT_USER, L"Software\\Alps\\Apoint\\TrackPoint")) { sDefaultTrackPointHack = true; } else if ((HasRegistryKey(HKEY_CURRENT_USER, L"Software\\Synaptics\\SynTPEnh\\UltraNavUSB") || HasRegistryKey(HKEY_CURRENT_USER, L"Software\\Synaptics\\SynTPEnh\\UltraNavPS2")) && IsObsoleteSynapticsDriver()) { sDefaultTrackPointHack = true; } bool useElantechGestureHacks = GetInputWorkaroundPref("ui.elantech_gesture_hacks.enabled", elantechDriverVersion != 0); sUseElantechSwipeHack = useElantechGestureHacks && elantechDriverVersion <= 7; sUseElantechPinchHack = useElantechGestureHacks && elantechDriverVersion <= 8; } LPARAM nsWindow::lParamToScreen(LPARAM lParam) { POINT pt; pt.x = GET_X_LPARAM(lParam); pt.y = GET_Y_LPARAM(lParam); ::ClientToScreen(mWnd, &pt); return MAKELPARAM(pt.x, pt.y); } LPARAM nsWindow::lParamToClient(LPARAM lParam) { POINT pt; pt.x = GET_X_LPARAM(lParam); pt.y = GET_Y_LPARAM(lParam); ::ScreenToClient(mWnd, &pt); return MAKELPARAM(pt.x, pt.y); } void nsWindow::PickerOpen() { mPickerDisplayCount++; } void nsWindow::PickerClosed() { NS_ASSERTION(mPickerDisplayCount > 0, "mPickerDisplayCount out of sync!"); if (!mPickerDisplayCount) return; mPickerDisplayCount--; if (!mPickerDisplayCount && mDestroyCalled) { Destroy(); } } /************************************************************** ************************************************************** ** ** BLOCK: ChildWindow impl. ** ** Child window overrides. ** ************************************************************** **************************************************************/ // return the style for a child nsWindow DWORD ChildWindow::WindowStyle() { DWORD style = WS_CLIPCHILDREN | nsWindow::WindowStyle(); if (!(style & WS_POPUP)) style |= WS_CHILD; // WS_POPUP and WS_CHILD are mutually exclusive. VERIFY_WINDOW_STYLE(style); return style; }