/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim:set ts=2 sts=2 sw=2 et cin: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ /* * 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/MathAlgorithms.h" #include "mozilla/MiscEvents.h" #include "mozilla/MouseEvents.h" #include "mozilla/TouchEvents.h" #include "mozilla/ipc/MessageChannel.h" #include #include "nsWindow.h" #include #include #include #include #include #include #include "prlog.h" #include "prtime.h" #include "prprf.h" #include "prmem.h" #include "prenv.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 "WinMouseScrollHandler.h" #include "nsFontMetrics.h" #include "nsIFontEnumerator.h" #include "nsFont.h" #include "nsRect.h" #include "nsThreadUtils.h" #include "nsNativeCharsetUtils.h" #include "nsGkAtoms.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 "nsLayoutUtils.h" #include "nsView.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" #include "WinUtils.h" #include "WidgetUtils.h" #include "nsIWidgetListener.h" #include "mozilla/dom/Touch.h" #include "mozilla/gfx/2D.h" #include "nsToolkitCompsCID.h" #include "nsIAppStartup.h" #include "mozilla/WindowsVersion.h" #ifdef MOZ_ENABLE_D3D9_LAYER #include "LayerManagerD3D9.h" #endif #ifdef MOZ_ENABLE_D3D10_LAYER #include "LayerManagerD3D10.h" #endif #include "nsIGfxInfo.h" #include "nsUXThemeConstants.h" #include "KeyboardLayout.h" #include "nsNativeDragTarget.h" #include // needed for WIN32_LEAN_AND_MEAN #include #include #if defined(ACCESSIBILITY) #ifdef DEBUG #include "mozilla/a11y/Logging.h" #endif #include "oleidl.h" #include #include "nsAccessibilityService.h" #include "mozilla/a11y/DocAccessible.h" #include "mozilla/a11y/Platform.h" #if !defined(WINABLEAPI) #include #endif // !defined(WINABLEAPI) #endif // defined(ACCESSIBILITY) #include "nsIWinTaskbar.h" #define NS_TASKBAR_CONTRACTID "@mozilla.org/windows-taskbar;1" #include "nsWindowDefs.h" #include "nsCrashOnException.h" #include "nsIXULRuntime.h" #include "nsIContent.h" #include "mozilla/HangMonitor.h" #include "WinIMEHandler.h" #include "npapi.h" #if !defined(SM_CONVERTIBLESLATEMODE) #define SM_CONVERTIBLESLATEMODE 0x2003 #endif using namespace mozilla; using namespace mozilla::dom; using namespace mozilla::layers; using namespace mozilla::widget; /************************************************************** ************************************************************** ** ** BLOCK: Variables ** ** nsWindow Class static initializations and global variables. ** ************************************************************** **************************************************************/ /************************************************************** * * SECTION: nsWindow statics * **************************************************************/ bool nsWindow::sDropShadowEnabled = true; uint32_t nsWindow::sInstanceCount = 0; bool nsWindow::sSwitchKeyboardLayout = false; BOOL nsWindow::sIsOleInitialized = FALSE; HCURSOR nsWindow::sHCursor = nullptr; imgIContainer* nsWindow::sCursorImgContainer = nullptr; nsWindow* nsWindow::sCurrentWindow = nullptr; 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 = nullptr; HHOOK nsWindow::sCallProcHook = nullptr; HHOOK nsWindow::sCallMouseHook = nullptr; bool nsWindow::sProcessHook = false; UINT nsWindow::sRollupMsgId = 0; HWND nsWindow::sRollupMsgWnd = nullptr; UINT nsWindow::sHookTimerId = 0; // 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 general window class (used when the pref is the empty string). const char* nsWindow::sDefaultMainWindowClass = kClassNameGeneral; // If we're using D3D9, this will not be allowed during initial 5 seconds. bool nsWindow::sAllowD3D9 = false; TriStateBool nsWindow::sHasBogusPopupsDropShadowOnMultiMonitor = TRI_UNKNOWN; // Used in OOPP plugin focus processing. const wchar_t* kOOPPPluginFocusEventId = L"OOPP Plugin Focus Widget Event"; uint32_t nsWindow::sOOPPPluginFocusEvent = RegisterWindowMessageW(kOOPPPluginFocusEventId); /************************************************************** * * SECTION: globals variables * **************************************************************/ static const char *sScreenManagerContractID = "@mozilla.org/gfx/screenmanager;1"; #ifdef PR_LOGGING extern PRLogModuleInfo* gWindowsLog; #endif // 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. Glass will be extended inward // this distance to remove the border. static const int32_t kGlassMarginAdjustment = 2; // When the client area is extended out into the default window frame area, // this is the minimum amount of space along the edge of resizable windows // we will always display a resize cursor in, regardless of the underlying // content. static const int32_t kResizableBorderMinSize = 3; // 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 // On window open (as well as after), Windows has an unfortunate habit of // sending rather a lot of WM_NCHITTEST messages. Because we have to do point // to DOM target conversions for these, we cache responses for a given // coordinate this many milliseconds: #define HITTEST_CACHE_LIFETIME_MS 50 /************************************************************** ************************************************************** ** ** BLOCK: nsIWidget impl. ** ** nsIWidget interface implementation, broken down into ** sections. ** ************************************************************** **************************************************************/ /************************************************************** * * SECTION: nsWindow construction and destruction * **************************************************************/ nsWindow::nsWindow() : nsWindowBase() { mIconSmall = nullptr; mIconBig = nullptr; mWnd = nullptr; mPaintDC = nullptr; mCompositeDC = nullptr; mPrevWndProc = nullptr; mNativeDragTarget = nullptr; 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; mOldSizeMode = nsSizeMode_Normal; mLastSizeMode = nsSizeMode_Normal; mLastSize.width = 0; mLastSize.height = 0; mOldStyle = 0; mOldExStyle = 0; mPainting = 0; mLastKeyboardLayout = 0; mBlurSuppressLevel = 0; mLastPaintEndTime = TimeStamp::Now(); mCachedHitTestPoint.x = 0; mCachedHitTestPoint.y = 0; mCachedHitTestTime = TimeStamp::Now(); mCachedHitTestResult = 0; #ifdef MOZ_XUL mTransparentSurface = nullptr; mMemoryDC = nullptr; mTransparencyMode = eTransparencyOpaque; memset(&mGlassMargins, 0, sizeof mGlassMargins); #endif mBackground = ::GetSysColor(COLOR_BTNFACE); mBrush = ::CreateSolidBrush(NSRGB_2_COLOREF(mBackground)); mForeground = ::GetSysColor(COLOR_WINDOWTEXT); mTaskbarPreview = nullptr; mHasTaskbarIconBeenCreated = false; // Global initialization if (!sInstanceCount) { // Global app registration id for Win7 and up. See // WinTaskbar.cpp for details. mozilla::widget::WinTaskbar::RegisterAppUserModelID(); KeyboardLayout::GetInstance()->OnLayoutChange(::GetKeyboardLayout(0)); IMEHandler::Initialize(); if (SUCCEEDED(::OleInitialize(nullptr))) { sIsOleInitialized = TRUE; } NS_ASSERTION(sIsOleInitialized, "***** OLE is not initialized!\n"); MouseScrollHandler::Initialize(); // Init titlebar button info for custom frames. nsUXThemeData::InitTitlebarInfo(); // Init theme data nsUXThemeData::UpdateNativeThemeInfo(); RedirectedKeyDownMessageManager::Forget(); } // !sInstanceCount mIdleService = nullptr; 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 (nullptr != mWnd) Destroy(); // Free app icon resources. This must happen after `OnDestroy` (see bug 708033). if (mIconSmall) ::DestroyIcon(mIconSmall); if (mIconBig) ::DestroyIcon(mIconBig); sInstanceCount--; // Global shutdown if (sInstanceCount == 0) { IMEHandler::Terminate(); NS_IF_RELEASE(sCursorImgContainer); if (sIsOleInitialized) { ::OleFlushClipboard(); ::OleUninitialize(); sIsOleInitialized = FALSE; } } 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. int32_t nsWindow::GetHeight(int32_t aProposedHeight) { return aProposedHeight; } // Create the proper widget nsresult nsWindow::Create(nsIWidget *aParent, nsNativeWidget aNativeParent, const nsIntRect &aRect, 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 ? nullptr : aParent; mIsTopWidgetWindow = (nullptr == baseParent); mBounds = aRect; // Ensure that the toolkit is created. nsToolkit::GetToolkit(); BaseCreate(baseParent, aRect, aContext, aInitData); HWND parent; if (aParent) { // has a nsIWidget parent parent = aParent ? (HWND)aParent->GetNativeData(NS_NATIVE_WINDOW) : nullptr; mParent = aParent; } else { // has a nsNative parent parent = (HWND)aNativeParent; mParent = aNativeParent ? WinUtils::GetNSWindowPtr((HWND)aNativeParent) : nullptr; } mIsRTL = aInitData->mRTL; DWORD style = WindowStyle(); DWORD extendedStyle = WindowExStyle(); if (mWindowType == eWindowType_popup) { if (!aParent) { parent = nullptr; } if (IsVistaOrLater() && !IsWin8OrLater()) { extendedStyle |= WS_EX_COMPOSITED; } 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, nullptr, nsToolkit::mDllInstance, nullptr); if (!mWnd) { NS_WARNING("nsWindow CreateWindowEx failed."); return NS_ERROR_FAILURE; } if (mIsRTL && WinUtils::dwmSetWindowAttributePtr) { DWORD dwAttribute = TRUE; WinUtils::dwmSetWindowAttributePtr(mWnd, DWMWA_NONCLIENT_RTL_LAYOUT, &dwAttribute, sizeof dwAttribute); } if (mWindowType != eWindowType_plugin && mWindowType != eWindowType_invisible && MouseScrollHandler::Device::IsFakeScrollableWindowNeeded()) { // 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, nullptr, nsToolkit::mDllInstance, nullptr); HWND scrollableWnd = ::CreateWindowW (className.get(), L"FAKETRACKPOINTSCROLLABLE", WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_TABSTOP | 0x30, 0, 0, 0, 0, scrollContainerWnd, nullptr, nsToolkit::mDllInstance, nullptr); // 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); } SubclassWindow(TRUE); IMEHandler::InitInputContext(this, mInputContext); // 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", IsVistaOrLater() ? 1 : 0); sSwitchKeyboardLayout = Preferences::GetBool("intl.keyboard.per_window_layout", false); } // Query for command button metric data for rendering the titlebar. We // only do this once on the first window. if (mWindowType == eWindowType_toplevel && (!nsUXThemeData::sTitlebarInfoPopulatedThemed || !nsUXThemeData::sTitlebarInfoPopulatedAero)) { nsUXThemeData::UpdateTitlebarInfo(mWnd); } 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 nullptr it here. */ if (mLayerManager) { mLayerManager->Destroy(); } mLayerManager = nullptr; /* 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) { MSGResult msgResult; mWindowHook.Notify(mWnd, WM_DESTROY, 0, 0, msgResult); 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(nullptr), aIconID) : nullptr; wc.hCursor = nullptr; wc.hbrBackground = mBrush; wc.lpszMenuName = nullptr; 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 (bState) { if (!mWnd || !IsWindow(mWnd)) { NS_ERROR("Invalid window handle"); } if (mUnicodeWidget) { mPrevWndProc = reinterpret_cast( SetWindowLongPtrW(mWnd, GWLP_WNDPROC, reinterpret_cast(nsWindow::WindowProc))); } else { mPrevWndProc = reinterpret_cast( SetWindowLongPtrA(mWnd, GWLP_WNDPROC, reinterpret_cast(nsWindow::WindowProc))); } NS_ASSERTION(mPrevWndProc, "Null standard window procedure"); // connect the this pointer to the nsWindow handle WinUtils::SetNSWindowBasePtr(mWnd, this); } else { if (IsWindow(mWnd)) { if (mUnicodeWidget) { SetWindowLongPtrW(mWnd, GWLP_WNDPROC, reinterpret_cast(mPrevWndProc)); } else { SetWindowLongPtrA(mWnd, GWLP_WNDPROC, reinterpret_cast(mPrevWndProc)); } } WinUtils::SetNSWindowBasePtr(mWnd, nullptr); mPrevWndProc = nullptr; } } /************************************************************** * * 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, nullptr)); } 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); } double nsWindow::GetDefaultScaleInternal() { return WinUtils::LogToPhysFactor(); } nsWindow* nsWindow::GetParentWindow(bool aIncludeOwner) { return static_cast(GetParentWindowBase(aIncludeOwner)); } nsWindowBase* nsWindow::GetParentWindowBase(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 nullptr; } // 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 nullptr; // 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 = nullptr; if (mWnd) { HWND parent = nullptr; if (aIncludeOwner) parent = ::GetParent(mWnd); else parent = ::GetAncestor(mWnd, GA_PARENT); if (parent) { widget = WinUtils::GetNSWindowPtr(parent); if (widget) { // If the widget is in the process of being destroyed then // do NOT return it if (widget->mInDtor) { widget = nullptr; } } } } return static_cast(widget); } BOOL CALLBACK nsWindow::EnumAllChildWindProc(HWND aWnd, LPARAM aParam) { nsWindow *wnd = WinUtils::GetNSWindowPtr(aWnd); if (wnd) { ((nsWindow::WindowEnumCallback*)aParam)(wnd); } return TRUE; } BOOL CALLBACK nsWindow::EnumAllThreadWindowProc(HWND aWnd, LPARAM aParam) { nsWindow *wnd = WinUtils::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() && WinUtils::GetMonitorCount() > 1 && !nsUXThemeData::CheckForCompositor()) { if (sDropShadowEnabled) { ::SetClassLongA(mWnd, GCL_STYLE, 0); sDropShadowEnabled = false; } } else { if (!sDropShadowEnabled) { ::SetClassLongA(mWnd, GCL_STYLE, CS_DROPSHADOW); sDropShadowEnabled = true; } } // WS_EX_COMPOSITED conflicts with the WS_EX_LAYERED style and causes // some popup menus to become invisible. LONG_PTR exStyle = ::GetWindowLongPtrW(mWnd, GWL_EXSTYLE); if (exStyle & WS_EX_LAYERED) { ::SetWindowLongPtrW(mWnd, GWL_EXSTYLE, exStyle & ~WS_EX_COMPOSITED); } } 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 { // Clear contents to avoid ghosting of old content if we display // this window again. if (wasVisible && mTransparencyMode == eTransparencyTransparent) { ClearTranslucentWindow(); } 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(); if (syncInvalidate && !mInDtor && !mOnDestroyCalled) { ::UpdateWindow(mWnd); } } #endif return NS_OK; } /************************************************************** * * SECTION: nsIWidget::IsVisible * * Returns the visibility state. * **************************************************************/ // Return true if the whether the component is visible, false otherwise bool nsWindow::IsVisible() const { return mIsVisible; } /************************************************************** * * 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 (IsVistaOrLater() && !HasGlass() && (mWindowType == eWindowType_popup && !IsPopupWithTitleBar() && (mPopupType == ePopupTypeTooltip || mPopupType == ePopupTypePanel))) { SetWindowRgn(mWnd, nullptr, 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 (IsVistaOrLater() && !HasGlass() && (mWindowType == eWindowType_popup && !IsPopupWithTitleBar() && (mPopupType == ePopupTypeTooltip || mPopupType == ePopupTypePanel))) { HRGN hRgn = nullptr; RECT rect = {0,0,mBounds.width,mBounds.height}; HDC dc = ::GetDC(mWnd); 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() { if (Preferences::GetInt("dom.w3c_touch_events.enabled", 0)) { 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 = WinUtils::GetNSWindowPtr(aWnd); if (win) win->mGesture.RegisterTouchWindow(aWnd); return TRUE; } BOOL CALLBACK nsWindow::UnregisterTouchForDescendants(HWND aWnd, LPARAM aMsg) { nsWindow* win = WinUtils::GetNSWindowPtr(aWnd); if (win) win->mGesture.UnregisterTouchWindow(aWnd); return TRUE; } /************************************************************** * * SECTION: nsIWidget::Move, nsIWidget::Resize, * nsIWidget::Size, nsIWidget::BeginResizeDrag * * Repositioning and sizing a window. * **************************************************************/ void nsWindow::SetSizeConstraints(const SizeConstraints& aConstraints) { SizeConstraints c = aConstraints; if (mWindowType != eWindowType_popup) { c.mMinSize.width = std::max(int32_t(::GetSystemMetrics(SM_CXMINTRACK)), c.mMinSize.width); c.mMinSize.height = std::max(int32_t(::GetSystemMetrics(SM_CYMINTRACK)), c.mMinSize.height); } nsBaseWidget::SetSizeConstraints(c); } // Move this component NS_METHOD nsWindow::Move(double aX, double aY) { if (mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog) { SetSizeMode(nsSizeMode_Normal); } // for top-level windows only, convert coordinates from global display pixels // (the "parent" coordinate space) to the window's device pixel space CSSToLayoutDeviceScale scale = BoundsUseDisplayPixels() ? GetDefaultScale() : CSSToLayoutDeviceScale(1.0); int32_t x = NSToIntRound(aX * scale.scale); int32_t y = NSToIntRound(aY * scale.scale); // 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 == x) && (mBounds.y == y)) { // Nothing to do, since it is already positioned correctly. return NS_OK; } mBounds.x = x; mBounds.y = y; 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 (x < 0 || x >= workArea.right || y < 0 || y >= 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() == LayersBackend::LAYERS_D3D9) && mClipRects && (mClipRectCount != 1 || !mClipRects[0].IsEqualInterior(nsIntRect(0, 0, mBounds.width, mBounds.height)))) { flags |= SWP_NOCOPYBITS; } VERIFY(::SetWindowPos(mWnd, nullptr, x, y, 0, 0, flags)); SetThemeRegion(); } NotifyRollupGeometryChange(); return NS_OK; } // Resize this component NS_METHOD nsWindow::Resize(double aWidth, double aHeight, bool aRepaint) { // for top-level windows only, convert coordinates from global display pixels // (the "parent" coordinate space) to the window's device pixel space CSSToLayoutDeviceScale scale = BoundsUseDisplayPixels() ? GetDefaultScale() : CSSToLayoutDeviceScale(1.0); int32_t width = NSToIntRound(aWidth * scale.scale); int32_t height = NSToIntRound(aHeight * scale.scale); NS_ASSERTION((width >= 0) , "Negative width passed to nsWindow::Resize"); NS_ASSERTION((height >= 0), "Negative height passed to nsWindow::Resize"); ConstrainSize(&width, &height); // Avoid unnecessary resizing calls if (mBounds.width == width && mBounds.height == height) { if (aRepaint) { Invalidate(); } return NS_OK; } #ifdef MOZ_XUL if (eTransparencyTransparent == mTransparencyMode) ResizeTranslucentWindow(width, height); #endif // Set cached value for lightweight and printing mBounds.width = width; mBounds.height = height; if (mWnd) { UINT flags = SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE; if (!aRepaint) { flags |= SWP_NOREDRAW; } ClearThemeRegion(); VERIFY(::SetWindowPos(mWnd, nullptr, 0, 0, width, GetHeight(height), flags)); SetThemeRegion(); } if (aRepaint) Invalidate(); NotifyRollupGeometryChange(); return NS_OK; } // Resize this component NS_METHOD nsWindow::Resize(double aX, double aY, double aWidth, double aHeight, bool aRepaint) { // for top-level windows only, convert coordinates from global display pixels // (the "parent" coordinate space) to the window's device pixel space CSSToLayoutDeviceScale scale = BoundsUseDisplayPixels() ? GetDefaultScale() : CSSToLayoutDeviceScale(1.0); int32_t x = NSToIntRound(aX * scale.scale); int32_t y = NSToIntRound(aY * scale.scale); int32_t width = NSToIntRound(aWidth * scale.scale); int32_t height = NSToIntRound(aHeight * scale.scale); NS_ASSERTION((width >= 0), "Negative width passed to nsWindow::Resize"); NS_ASSERTION((height >= 0), "Negative height passed to nsWindow::Resize"); ConstrainSize(&width, &height); // Avoid unnecessary resizing calls if (mBounds.x == x && mBounds.y == y && mBounds.width == width && mBounds.height == height) { if (aRepaint) { Invalidate(); } return NS_OK; } #ifdef MOZ_XUL if (eTransparencyTransparent == mTransparencyMode) ResizeTranslucentWindow(width, height); #endif // Set cached value for lightweight and printing mBounds.x = x; mBounds.y = y; mBounds.width = width; mBounds.height = height; if (mWnd) { UINT flags = SWP_NOZORDER | SWP_NOACTIVATE; if (!aRepaint) { flags |= SWP_NOREDRAW; } ClearThemeRegion(); VERIFY(::SetWindowPos(mWnd, nullptr, x, y, width, GetHeight(height), flags)); SetThemeRegion(); } if (aRepaint) Invalidate(); NotifyRollupGeometryChange(); return NS_OK; } NS_IMETHODIMP nsWindow::BeginResizeDrag(WidgetGUIEvent* aEvent, int32_t aHorizontal, int32_t 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; } if (aEvent->AsMouseEvent()->button != WidgetMouseEvent::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 = WinUtils::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(int32_t 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 mLastSizeMode = mSizeMode; 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 activate here to ensure that the right child window is focused if (mode == SW_MAXIMIZE || mode == SW_SHOW) DispatchFocusToTopLevelWindow(true); } return rv; } // Constrain a potential move to fit onscreen // Position (aX, aY) is specified in Windows screen (logical) pixels NS_METHOD nsWindow::ConstrainPosition(bool aAllowSlop, int32_t *aX, int32_t *aY) { if (!mIsTopWidgetWindow) // only a problem for top-level windows return NS_OK; double dpiScale = GetDefaultScale().scale; // we need to use the window size in logical screen pixels int32_t logWidth = std::max(NSToIntRound(mBounds.width / dpiScale), 1); int32_t logHeight = std::max(NSToIntRound(mBounds.height / dpiScale), 1); 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; int32_t left, top, width, height; screenmgr->ScreenForRect(*aX, *aY, logWidth, logHeight, getter_AddRefs(screen)); if (screen) { if (mSizeMode != nsSizeMode_Fullscreen) { // For normalized windows, use the desktop work area. screen->GetAvailRectDisplayPix(&left, &top, &width, &height); } else { // For full screen windows, use the desktop. screen->GetRectDisplayPix(&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 - logWidth + kWindowPositionSlop) *aX = screenRect.left - logWidth + kWindowPositionSlop; else if (*aX >= screenRect.right - kWindowPositionSlop) *aX = screenRect.right - kWindowPositionSlop; if (*aY < screenRect.top - logHeight + kWindowPositionSlop) *aY = screenRect.top - logHeight + kWindowPositionSlop; else if (*aY >= screenRect.bottom - kWindowPositionSlop) *aY = screenRect.bottom - kWindowPositionSlop; } else { if (*aX < screenRect.left) *aX = screenRect.left; else if (*aX >= screenRect.right - logWidth) *aX = screenRect.right - logWidth; if (*aY < screenRect.top) *aY = screenRect.top; else if (*aY >= screenRect.bottom - logHeight) *aY = screenRect.bottom - logHeight; } 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 bool nsWindow::IsEnabled() const { return !mWnd || (::IsWindowEnabled(mWnd) && ::IsWindowEnabled(::GetAncestor(mWnd, GA_ROOT))); } /************************************************************** * * SECTION: nsIWidget::SetFocus * * Give the focus to this widget. * **************************************************************/ NS_METHOD nsWindow::SetFocus(bool aRaise) { if (mWnd) { #ifdef WINSTATE_DEBUG_OUTPUT if (mWnd == WinUtils::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 = WinUtils::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) { // top, right, bottom, left for nsIntMargin nsIntMargin margins(0, -1, -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_CXFRAME); 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(WinUtils::ToIntRect(clientRc)); OnResize(evRect); // Invalidate and update Invalidate(); } // 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 wchar_t kManageWindowInfoProperty[] = L"ManageWindowInfoProperty"; typedef BOOL (WINAPI *GetWindowInfoPtr)(HWND hwnd, PWINDOWINFO pwi); static GetWindowInfoPtr sGetWindowInfoPtrStub = nullptr; 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. * * The offsets calculated here are based on the value of `mNonClientMargins` * which is specified in the "chromemargins" attribute of the window. For * each margin, the value specified has the following meaning: * -1 - leave the default frame in place * 0 - remove the frame * >0 - frame size equals min(0, (default frame size - margin value)) * * This function calculates and populates `mNonClientOffset`. * In our processing of `WM_NCCALCSIZE`, the frame size will be calculated * as (default frame size - offset). For example, if the left frame should * be 1 pixel narrower than the default frame size, `mNonClientOffset.left` * will equal 1. * * For maximized, fullscreen, and minimized windows, the values stored in * `mNonClientMargins` are ignored, and special processing takes place. * * For non-glass windows, we only allow frames to be their default size * or removed entirely. */ bool nsWindow::UpdateNonClientMargins(int32_t aSizeMode, bool aReflowWindow) { if (!mCustomNonClient) return false; if (aSizeMode == -1) { aSizeMode = mSizeMode; } bool hasCaption = (mBorderStyle & (eBorderStyle_all | eBorderStyle_title | eBorderStyle_menu | eBorderStyle_default)); // mCaptionHeight is the default size of the NC area at // the top of the window. If the window has a caption, // the size is calculated as the sum of: // SM_CYFRAME - The thickness of the sizing border // around a resizable window // SM_CXPADDEDBORDER - The amount of border padding // for captioned windows // SM_CYCAPTION - The height of the caption area // // If the window does not have a caption, mCaptionHeight will be equal to // `GetSystemMetrics(SM_CYFRAME)` mCaptionHeight = GetSystemMetrics(SM_CYFRAME) + (hasCaption ? GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CXPADDEDBORDER) : 0); // mHorResizeMargin is the size of the default NC areas on the // left and right sides of our window. It is calculated as // the sum of: // SM_CXFRAME - The thickness of the sizing border // SM_CXPADDEDBORDER - The amount of border padding // for captioned windows // // If the window does not have a caption, mHorResizeMargin will be equal to // `GetSystemMetrics(SM_CXFRAME)` mHorResizeMargin = GetSystemMetrics(SM_CXFRAME) + (hasCaption ? GetSystemMetrics(SM_CXPADDEDBORDER) : 0); // mVertResizeMargin is the size of the default NC area at the // bottom of the window. It is calculated as the sum of: // SM_CYFRAME - The thickness of the sizing border // SM_CXPADDEDBORDER - The amount of border padding // for captioned windows. // // If the window does not have a caption, mVertResizeMargin will be equal to // `GetSystemMetrics(SM_CYFRAME)` mVertResizeMargin = GetSystemMetrics(SM_CYFRAME) + (hasCaption ? GetSystemMetrics(SM_CXPADDEDBORDER) : 0); if (aSizeMode == nsSizeMode_Minimized) { // Use default frame size for minimized windows mNonClientOffset.top = 0; mNonClientOffset.left = 0; mNonClientOffset.right = 0; mNonClientOffset.bottom = 0; } else if (aSizeMode == nsSizeMode_Fullscreen) { // Remove the default frame from the top of our fullscreen window. This // makes the whole caption part of our client area, allowing us to draw // in the whole caption area. Additionally remove the default frame from // the left, right, and bottom. mNonClientOffset.top = mCaptionHeight; mNonClientOffset.bottom = mVertResizeMargin; mNonClientOffset.left = mHorResizeMargin; mNonClientOffset.right = mHorResizeMargin; } else if (aSizeMode == nsSizeMode_Maximized) { // Remove the default frame from the top of our maximized window. This // makes the whole caption part of our client area, allowing us to draw // in the whole caption area. Use default frame size on left, right, and // bottom. The reason this works is that, for maximized windows, // Windows positions them so that their frames fall off the screen. // This gives the illusion of windows having no frames when they are // maximized. If we try to mess with the frame sizes by setting these // offsets to positive values, our client area will fall off the screen. mNonClientOffset.top = mCaptionHeight; mNonClientOffset.bottom = 0; mNonClientOffset.left = 0; mNonClientOffset.right = 0; APPBARDATA appBarData; appBarData.cbSize = sizeof(appBarData); UINT taskbarState = SHAppBarMessage(ABM_GETSTATE, &appBarData); if (ABS_AUTOHIDE & taskbarState) { UINT edge = -1; appBarData.hWnd = FindWindow(L"Shell_TrayWnd", nullptr); if (appBarData.hWnd) { HMONITOR taskbarMonitor = ::MonitorFromWindow(appBarData.hWnd, MONITOR_DEFAULTTOPRIMARY); HMONITOR windowMonitor = ::MonitorFromWindow(mWnd, MONITOR_DEFAULTTONEAREST); if (taskbarMonitor == windowMonitor) { SHAppBarMessage(ABM_GETTASKBARPOS, &appBarData); edge = appBarData.uEdge; } } if (ABE_LEFT == edge) { mNonClientOffset.left -= 1; } else if (ABE_RIGHT == edge) { mNonClientOffset.right -= 1; } else if (ABE_BOTTOM == edge || ABE_TOP == edge) { mNonClientOffset.bottom -= 1; } } } else { bool glass = nsUXThemeData::CheckForCompositor(); // We're dealing with a "normal" window (not maximized, minimized, or // fullscreen), so process `mNonClientMargins` and set `mNonClientOffset` // accordingly. // // Setting `mNonClientOffset` to 0 has the effect of leaving the default // frame intact. Setting it to a value greater than 0 reduces the frame // size by that amount. if (mNonClientMargins.top > 0 && glass) { mNonClientOffset.top = std::min(mCaptionHeight, mNonClientMargins.top); } else if (mNonClientMargins.top == 0) { mNonClientOffset.top = mCaptionHeight; } else { mNonClientOffset.top = 0; } if (mNonClientMargins.bottom > 0 && glass) { mNonClientOffset.bottom = std::min(mVertResizeMargin, mNonClientMargins.bottom); } else if (mNonClientMargins.bottom == 0) { mNonClientOffset.bottom = mVertResizeMargin; } else { mNonClientOffset.bottom = 0; } if (mNonClientMargins.left > 0 && glass) { mNonClientOffset.left = std::min(mHorResizeMargin, mNonClientMargins.left); } else if (mNonClientMargins.left == 0) { mNonClientOffset.left = mHorResizeMargin; } else { mNonClientOffset.left = 0; } if (mNonClientMargins.right > 0 && glass) { mNonClientOffset.right = std::min(mHorResizeMargin, mNonClientMargins.right); } else if (mNonClientMargins.right == 0) { mNonClientOffset.right = mHorResizeMargin; } else { mNonClientOffset.right = 0; } } 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 NS_OK; } 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(nullptr, 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(nullptr, 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, nullptr, winRgn, RDW_FRAME | RDW_INVALIDATE); DeleteObject(winRgn); } HRGN nsWindow::ExcludeNonClientFromPaintRegion(HRGN aRegion) { RECT rect; HRGN rgn = nullptr; if (aRegion == (HRGN)1) { // undocumented value indicating a full refresh GetWindowRect(mWnd, &rect); rgn = CreateRectRgnIndirect(&rect); } else { rgn = aRegion; } GetClientRect(mWnd, &rect); MapWindowPoints(mWnd, nullptr, (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 != nullptr) { ::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 = nullptr; switch (aCursor) { case eCursor_select: newCursor = ::LoadCursor(nullptr, IDC_IBEAM); break; case eCursor_wait: newCursor = ::LoadCursor(nullptr, IDC_WAIT); break; case eCursor_hyperlink: { newCursor = ::LoadCursor(nullptr, IDC_HAND); break; } case eCursor_standard: case eCursor_context_menu: // XXX See bug 258960. newCursor = ::LoadCursor(nullptr, IDC_ARROW); break; case eCursor_n_resize: case eCursor_s_resize: newCursor = ::LoadCursor(nullptr, IDC_SIZENS); break; case eCursor_w_resize: case eCursor_e_resize: newCursor = ::LoadCursor(nullptr, IDC_SIZEWE); break; case eCursor_nw_resize: case eCursor_se_resize: newCursor = ::LoadCursor(nullptr, IDC_SIZENWSE); break; case eCursor_ne_resize: case eCursor_sw_resize: newCursor = ::LoadCursor(nullptr, IDC_SIZENESW); break; case eCursor_crosshair: newCursor = ::LoadCursor(nullptr, IDC_CROSS); break; case eCursor_move: newCursor = ::LoadCursor(nullptr, IDC_SIZEALL); break; case eCursor_help: newCursor = ::LoadCursor(nullptr, 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(nullptr, IDC_APPSTARTING); 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(nullptr, 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(nullptr, IDC_SIZEALL); break; case eCursor_nesw_resize: newCursor = ::LoadCursor(nullptr, IDC_SIZENESW); break; case eCursor_nwse_resize: newCursor = ::LoadCursor(nullptr, IDC_SIZENWSE); break; case eCursor_ns_resize: newCursor = ::LoadCursor(nullptr, IDC_SIZENS); break; case eCursor_ew_resize: newCursor = ::LoadCursor(nullptr, IDC_SIZEWE); break; case eCursor_none: newCursor = ::LoadCursor(nsToolkit::mDllInstance, MAKEINTRESOURCE(IDC_NONE)); break; default: NS_ERROR("Invalid cursor type"); break; } if (nullptr != newCursor) { mCursor = aCursor; HCURSOR oldCursor = ::SetCursor(newCursor); if (sHCursor == oldCursor) { NS_IF_RELEASE(sCursorImgContainer); if (sHCursor != nullptr) ::DestroyIcon(sHCursor); sHCursor = nullptr; } } return NS_OK; } // Setting the actual cursor NS_IMETHODIMP nsWindow::SetCursor(imgIContainer* aCursor, uint32_t aHotspotX, uint32_t aHotspotY) { if (sCursorImgContainer == aCursor && sHCursor) { ::SetCursor(sHCursor); return NS_OK; } int32_t width; int32_t 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 != nullptr) ::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 (uint32_t i = 0; i < aRects.Length(); ++i) { region.Or(region, aRects[i]); } return region; } void nsWindow::UpdateOpaqueRegion(const nsIntRegion &aOpaqueRegion) { 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 = std::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(); } } void nsWindow::UpdateGlass() { 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()) { WinUtils::dwmExtendFrameIntoClientAreaPtr(mWnd, &margins); WinUtils::dwmSetWindowAttributePtr(mWnd, DWMWA_NCRENDERING_POLICY, &policy, sizeof policy); } } #endif /************************************************************** * * SECTION: nsIWidget::HideWindowChrome * * Show or hide window chrome. * **************************************************************/ NS_IMETHODIMP nsWindow::HideWindowChrome(bool aShouldHide) { HWND hwnd = WinUtils::GetTopLevelHWND(mWnd, true); if (!WinUtils::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 aEraseBackground, bool aUpdateNCArea, bool aIncludeChildren) { if (!mWnd) { return NS_OK; } #ifdef WIDGET_DEBUG_OUTPUT debug_DumpInvalidate(stdout, this, nullptr, nsAutoCString("noname"), (int32_t) mWnd); #endif // WIDGET_DEBUG_OUTPUT DWORD flags = RDW_INVALIDATE; if (aEraseBackground) { flags |= RDW_ERASE; } if (aUpdateNCArea) { flags |= RDW_FRAME; } if (aIncludeChildren) { flags |= RDW_ALLCHILDREN; } VERIFY(::RedrawWindow(mWnd, nullptr, nullptr, flags)); return NS_OK; } // Invalidate this component visible area NS_METHOD nsWindow::Invalidate(const nsIntRect & aRect) { if (mWnd) { #ifdef WIDGET_DEBUG_OUTPUT debug_DumpInvalidate(stdout, this, &aRect, nsAutoCString("noname"), (int32_t) 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)); } return NS_OK; } void nsWindow::Update() { if (!ShouldUseOffMainThreadCompositing() && mWnd) { ::UpdateWindow(mWnd); } } NS_IMETHODIMP nsWindow::MakeFullScreen(bool aFullScreen) { // taskbarInfo will be nullptr 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(); } // Notify the taskbar that we have exited full screen mode. if (!aFullScreen && taskbarInfo) { taskbarInfo->PrepareFullScreenHWND(mWnd, FALSE); } if (mWidgetListener) mWidgetListener->SizeModeChanged(mSizeMode); 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(uint32_t 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, nullptr, nsToolkit::mDllInstance, nullptr); 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 case NS_NATIVE_TSF_THREAD_MGR: case NS_NATIVE_TSF_CATEGORY_MGR: case NS_NATIVE_TSF_DISPLAY_ATTR_MGR: return IMEHandler::GetNativeData(aDataType); default: break; } return nullptr; } // Free some native data according to aDataType void nsWindow::FreeNativeData(void * data, uint32_t 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(nullptr, (LPCWSTR)iconPath.get(), IMAGE_ICON, ::GetSystemMetrics(SM_CXICON), ::GetSystemMetrics(SM_CYICON), LR_LOADFROMFILE ); HICON smallIcon = (HICON)::LoadImageW(nullptr, (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); mIconBig = bigIcon; } #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); mIconSmall = smallIcon; } #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 (mWindowType == eWindowType_popup && !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 (nullptr == mNativeDragTarget) { mNativeDragTarget = new nsNativeDragTarget(this); if (nullptr != mNativeDragTarget) { mNativeDragTarget->AddRef(); if (S_OK == ::CoLockObjectExternal((LPUNKNOWN)mNativeDragTarget,TRUE,FALSE)) { if (S_OK == ::RegisterDragDrop(mWnd, (LPDROPTARGET)mNativeDragTarget)) { rv = NS_OK; } } } } } else { if (nullptr != mWnd && nullptr != 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(nullptr); ::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) { if (aDoCapture) { gRollupListener = aListener; if (!sMsgFilterHook && !sCallProcHook && !sCallMouseHook) { RegisterSpecialDropdownHooks(); } sProcessHook = true; } else { gRollupListener = nullptr; 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(int32_t aCycleCount) { // Got window? if (!mWnd) return NS_ERROR_NOT_INITIALIZED; HWND flashWnd = WinUtils::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 == WinUtils::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(PLayerTransactionChild* aShadowManager, LayersBackend aBackendHint, LayerManagerPersistence aPersistence, bool* aAllowRetaining) { if (aAllowRetaining) { *aAllowRetaining = true; } #ifdef MOZ_ENABLE_D3D10_LAYER if (mLayerManager) { if (mLayerManager->GetBackendType() == LayersBackend::LAYERS_D3D10) { LayerManagerD3D10 *layerManagerD3D10 = static_cast(mLayerManager.get()); if (layerManagerD3D10->device() != gfxWindowsPlatform::GetPlatform()->GetD3D10Device()) { MOZ_ASSERT(!mLayerManager->IsInTransaction()); mLayerManager->Destroy(); mLayerManager = nullptr; } } } #endif RECT windowRect; ::GetClientRect(mWnd, &windowRect); // Try OMTC first. if (!mLayerManager && ShouldUseOffMainThreadCompositing()) { // e10s uses the parameter to pass in the shadow manager from the TabChild // so we don't expect to see it there since this doesn't support e10s. NS_ASSERTION(aShadowManager == nullptr, "Async Compositor not supported with e10s"); CreateCompositor(); } if (!mLayerManager || (!sAllowD3D9 && aPersistence == LAYER_MANAGER_PERSISTENT && mLayerManager->GetBackendType() == LayersBackend::LAYERS_BASIC && !ShouldUseOffMainThreadCompositing())) { // 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) mUseLayersAcceleration = false; else if (prefs.mAccelerateByDefault) mUseLayersAcceleration = true; if (mUseLayersAcceleration) { if (aPersistence == LAYER_MANAGER_PERSISTENT && !sAllowD3D9) { MOZ_ASSERT(!mLayerManager || !mLayerManager->IsInTransaction()); // 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 LayerManagerD3D10(this); if (layerManager->Initialize(prefs.mForceAcceleration)) { mLayerManager = layerManager; } } #endif #ifdef MOZ_ENABLE_D3D9_LAYER if (!prefs.mPreferOpenGL && !mLayerManager && sAllowD3D9) { nsRefPtr layerManager = new LayerManagerD3D9(this); if (layerManager->Initialize(prefs.mForceAcceleration)) { mLayerManager = layerManager; } } #endif } // 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) { gfxContentType content = gfxContentType::COLOR; #if defined(MOZ_XUL) if (mTransparencyMode != eTransparencyOpaque) { content = gfxContentType::COLOR_ALPHA; } #endif return (new gfxD2DSurface(mWnd, content)); } else { #endif uint32_t 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() || WinUtils::GetTopLevelHWND(mWnd, true) != WinUtils::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(double aOriginalDeltaX, double aOriginalDeltaY, double& aOverriddenDeltaX, double& aOverriddenDeltaY) { // The default vertical and horizontal scrolling speed is 3, this is defined // on the document of SystemParametersInfo in MSDN. const uint32_t kSystemDefaultScrollingSpeed = 3; double absOriginDeltaX = Abs(aOriginalDeltaX); double absOriginDeltaY = Abs(aOriginalDeltaY); // Compute the simple overridden speed. double absComputedOverriddenDeltaX, absComputedOverriddenDeltaY; nsresult rv = nsBaseWidget::OverrideSystemMouseScrollSpeed(absOriginDeltaX, absOriginDeltaY, absComputedOverriddenDeltaX, absComputedOverriddenDeltaY); NS_ENSURE_SUCCESS(rv, rv); aOverriddenDeltaX = aOriginalDeltaX; aOverriddenDeltaY = aOriginalDeltaY; if (absComputedOverriddenDeltaX == absOriginDeltaX && absComputedOverriddenDeltaY == absOriginDeltaY) { // 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 (IsVistaOrLater()) { 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. double absDeltaLimitX, absDeltaLimitY; rv = nsBaseWidget::OverrideSystemMouseScrollSpeed(kSystemDefaultScrollingSpeed, kSystemDefaultScrollingSpeed, absDeltaLimitX, absDeltaLimitY); 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 (absDeltaLimitX <= absOriginDeltaX || absDeltaLimitY <= absOriginDeltaY) { return NS_OK; } aOverriddenDeltaX = std::min(absComputedOverriddenDeltaX, absDeltaLimitX); aOverriddenDeltaY = std::min(absComputedOverriddenDeltaY, absDeltaLimitY); if (aOriginalDeltaX < 0) { aOverriddenDeltaX *= -1; } if (aOriginalDeltaY < 0) { aOverriddenDeltaY *= -1; } return NS_OK; } mozilla::TemporaryRef nsWindow::StartRemoteDrawing() { MOZ_ASSERT(!mCompositeDC); NS_ASSERTION(IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D) || IsRenderMode(gfxWindowsPlatform::RENDER_GDI), "Unexpected render mode for remote drawing"); HDC dc = (HDC)GetNativeData(NS_NATIVE_GRAPHIC); nsRefPtr surf; if (mTransparencyMode == eTransparencyTransparent) { if (!mTransparentSurface) { SetupTranslucentWindowMemoryBitmap(mTransparencyMode); } if (mTransparentSurface) { surf = mTransparentSurface; } } if (!surf) { if (!dc) { return nullptr; } uint32_t flags = (mTransparencyMode == eTransparencyOpaque) ? 0 : gfxWindowsSurface::FLAG_IS_TRANSPARENT; surf = new gfxWindowsSurface(dc, flags); } mozilla::gfx::IntSize size(surf->GetSize().width, surf->GetSize().height); if (size.width <= 0 || size.height <= 0) { if (dc) { FreeNativeData(dc, NS_NATIVE_GRAPHIC); } return nullptr; } MOZ_ASSERT(!mCompositeDC); mCompositeDC = dc; return mozilla::gfx::Factory::CreateDrawTargetForCairoSurface(surf->CairoSurface(), size); } void nsWindow::EndRemoteDrawing() { if (mTransparencyMode == eTransparencyTransparent) { MOZ_ASSERT(IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D) || mTransparentSurface); UpdateTranslucentWindow(); } if (mCompositeDC) { FreeNativeData(mCompositeDC, NS_NATIVE_GRAPHIC); } mCompositeDC = nullptr; } /************************************************************** ************************************************************** ** ** BLOCK: Moz Events ** ** Moz GUI event management. ** ************************************************************** **************************************************************/ /************************************************************** * * SECTION: Mozilla event initialization * * Helpers for initializing moz events. * **************************************************************/ // Event intialization void nsWindow::InitEvent(WidgetGUIEvent& event, nsIntPoint* aPoint) { if (nullptr == aPoint) { // use the point from the event // get the message position in client coordinates if (mWnd != nullptr) { 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(); } /************************************************************** * * 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(WidgetGUIEvent* event, nsEventStatus& aStatus) { #ifdef WIDGET_DEBUG_OUTPUT debug_DumpEvent(stdout, event->widget, event, nsAutoCString("something"), (int32_t) mWnd); #endif // WIDGET_DEBUG_OUTPUT aStatus = nsEventStatus_eIgnore; // 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 (mAttachedWidgetListener) { aStatus = mAttachedWidgetListener->HandleEvent(event, mUseAttachedEvents); } else if (mWidgetListener) { aStatus = mWidgetListener->HandleEvent(event, mUseAttachedEvents); } // 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(uint32_t aMsg) { WidgetGUIEvent event(true, aMsg, this); InitEvent(event); bool result = DispatchWindowEvent(&event); return result; } bool nsWindow::DispatchKeyboardEvent(WidgetGUIEvent* event) { nsEventStatus status; DispatchEvent(event, status); return ConvertStatus(status); } bool nsWindow::DispatchScrollEvent(WidgetGUIEvent* event) { nsEventStatus status; DispatchEvent(event, status); return ConvertStatus(status); } bool nsWindow::DispatchWindowEvent(WidgetGUIEvent* event) { nsEventStatus status; DispatchEvent(event, status); return ConvertStatus(status); } bool nsWindow::DispatchWindowEvent(WidgetGUIEvent* event, nsEventStatus& aStatus) { DispatchEvent(event, aStatus); return ConvertStatus(aStatus); } bool nsWindow::DispatchCommandEvent(uint32_t 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; case APPCOMMAND_CLOSE: command = nsGkAtoms::Close; break; case APPCOMMAND_FIND: command = nsGkAtoms::Find; break; case APPCOMMAND_HELP: command = nsGkAtoms::Help; break; case APPCOMMAND_NEW: command = nsGkAtoms::New; break; case APPCOMMAND_OPEN: command = nsGkAtoms::Open; break; case APPCOMMAND_PRINT: command = nsGkAtoms::Print; break; case APPCOMMAND_SAVE: command = nsGkAtoms::Save; break; case APPCOMMAND_FORWARD_MAIL: command = nsGkAtoms::ForwardMail; break; case APPCOMMAND_REPLY_TO_MAIL: command = nsGkAtoms::ReplyToMail; break; case APPCOMMAND_SEND_MAIL: command = nsGkAtoms::SendMail; break; default: return false; } WidgetCommandEvent event(true, nsGkAtoms::onAppCommand, command, this); InitEvent(event); return DispatchWindowEvent(&event); } // 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, nullptr, 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(nullptr, PR_MillisecondsToInterval(100)); --recursionBlocker; } // Quickly check to see if there are any paint events pending, // but only dispatch them if it has been long enough since the // last paint completed. if (::GetQueueStatus(QS_PAINT) && ((TimeStamp::Now() - mLastPaintEndTime).ToMilliseconds() >= 50)) { // Find the top level window. HWND topWnd = WinUtils::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); } } bool nsWindow::DispatchPluginEvent(UINT aMessage, WPARAM aWParam, LPARAM aLParam, bool aDispatchPendingEvents) { bool ret = nsWindowBase::DispatchPluginEvent( WinUtils::InitMSG(aMessage, aWParam, aLParam, mWnd)); if (aDispatchPendingEvents && !Destroyed()) { DispatchPendingEvents(); } return ret; } // Deal with all sort of mouse event bool nsWindow::DispatchMouseEvent(uint32_t aEventType, WPARAM wParam, LPARAM lParam, bool aIsContextMenuKey, int16_t aButton, uint16_t aInputSource) { bool result = false; UserActivity(); if (!mWidgetListener) { 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); WidgetMouseEvent event(true, aEventType, this, WidgetMouseEvent::eReal, aIsContextMenuKey ? WidgetMouseEvent::eContextMenuKey : WidgetMouseEvent::eNormal); if (aEventType == NS_CONTEXTMENU && aIsContextMenuKey) { nsIntPoint zero(0, 0); InitEvent(event, &zero); } else { InitEvent(event, &eventPoint); } ModifierKeyState modifierKeyState; modifierKeyState.InitInputEvent(event); 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 = (DeprecatedAbs(sLastMousePoint.x - eventPoint.x) < (short)::GetSystemMetrics(SM_CXDOUBLECLK)) && (DeprecatedAbs(sLastMousePoint.y - eventPoint.y) < (short)::GetSystemMetrics(SM_CYDOUBLECLK)); BYTE eventButton; switch (aButton) { case WidgetMouseEvent::eLeftButton: eventButton = VK_LBUTTON; break; case WidgetMouseEvent::eMiddleButton: eventButton = VK_MBUTTON; break; case WidgetMouseEvent::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) ? WidgetMouseEvent::eTopLevel : WidgetMouseEvent::eChild; } 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 WidgetMouseEvent::eLeftButton: pluginEvent.event = WM_LBUTTONDOWN; break; case WidgetMouseEvent::eMiddleButton: pluginEvent.event = WM_MBUTTONDOWN; break; case WidgetMouseEvent::eRightButton: pluginEvent.event = WM_RBUTTONDOWN; break; default: break; } break; case NS_MOUSE_BUTTON_UP: switch (aButton) { case WidgetMouseEvent::eLeftButton: pluginEvent.event = WM_LBUTTONUP; break; case WidgetMouseEvent::eMiddleButton: pluginEvent.event = WM_MBUTTONUP; break; case WidgetMouseEvent::eRightButton: pluginEvent.event = WM_RBUTTONUP; break; default: break; } break; case NS_MOUSE_DOUBLECLICK: switch (aButton) { case WidgetMouseEvent::eLeftButton: pluginEvent.event = WM_LBUTTONDBLCLK; break; case WidgetMouseEvent::eMiddleButton: pluginEvent.event = WM_MBUTTONDBLCLK; break; case WidgetMouseEvent::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 (mWidgetListener) { 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(LayoutDeviceIntPoint::ToUntyped(event.refPoint))) { if (sCurrentWindow == nullptr || sCurrentWindow != this) { if ((nullptr != sCurrentWindow) && (!sCurrentWindow->mInDtor)) { LPARAM pos = sCurrentWindow->lParamToClient(lParamToScreen(lParam)); sCurrentWindow->DispatchMouseEvent(NS_MOUSE_EXIT, wParam, pos, false, WidgetMouseEvent::eLeftButton, aInputSource); } sCurrentWindow = this; if (!mInDtor) { LPARAM pos = sCurrentWindow->lParamToClient(lParamToScreen(lParam)); sCurrentWindow->DispatchMouseEvent(NS_MOUSE_ENTER, wParam, pos, false, WidgetMouseEvent::eLeftButton, aInputSource); } } } } else if (aEventType == NS_MOUSE_EXIT) { if (sCurrentWindow == this) { sCurrentWindow = nullptr; } } 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; } void nsWindow::DispatchFocusToTopLevelWindow(bool aIsActivate) { if (aIsActivate) sJustGotActivate = false; sJustGotDeactivate = false; // retrive the toplevel window or dialog HWND curWnd = mWnd; HWND toplevelWnd = nullptr; while (curWnd) { toplevelWnd = curWnd; nsWindow *win = WinUtils::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 = WinUtils::GetNSWindowPtr(toplevelWnd); if (win && win->mWidgetListener) { if (aIsActivate) { win->mWidgetListener->WindowActivated(); } else { if (!win->BlurEventsSuppressed()) { win->mWidgetListener->WindowDeactivated(); } } } } } 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); // WinUtils::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 = WinUtils::GetTopLevelHWND(mouseWnd); if (mouseWnd == mouseTopLevel) return true; return WinUtils::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 = WinUtils::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::MessageChannel::IsPumpingMessages(), "Failed to prevent a nonqueued message from running!"); // Modal UI being displayed in windowless plugins. if (mozilla::ipc::MessageChannel::IsSpinLoopActive() && (InSendMessageEx(nullptr) & (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(nullptr) & (ISMEX_REPLIED|ISMEX_SEND)) == ISMEX_SEND) { wchar_t szClass[10]; HWND focusWnd = (HWND)lParam; if (IsWindowVisible(focusWnd) && GetClassNameW(focusWnd, szClass, sizeof(szClass)/sizeof(char16_t)) && !wcscmp(szClass, L"Edit") && !WinUtils::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(nullptr) & (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, int32_t x, int32_t 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, nullptr); if (cmd) { PostMessage(hWnd, WM_SYSCOMMAND, cmd, 0); return true; } } return false; } inline static mozilla::HangMonitor::ActivityType ActivityTypeForMessage(UINT msg) { if ((msg >= WM_KEYFIRST && msg <= WM_IME_KEYLAST) || (msg >= WM_MOUSEFIRST && msg <= WM_MOUSELAST) || (msg >= MOZ_WM_MOUSEWHEEL_FIRST && msg <= MOZ_WM_MOUSEWHEEL_LAST) || (msg >= NS_WM_IMEFIRST && msg <= NS_WM_IMELAST)) { return mozilla::HangMonitor::kUIActivity; } // This may not actually be right, but we don't want to reset the timer if // we're not actually processing a UI message. return mozilla::HangMonitor::kActivityUIAVail; } // 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) { HangMonitor::NotifyActivity(ActivityTypeForMessage(msg)); return mozilla::CallWindowProcCrashProtected(WindowProcInternal, hWnd, msg, wParam, lParam); } LRESULT CALLBACK nsWindow::WindowProcInternal(HWND hWnd, UINT msg, WPARAM wParam, LPARAM 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 *targetWindow = WinUtils::GetNSWindowPtr(hWnd); NS_ASSERTION(targetWindow, "nsWindow* is null!"); if (!targetWindow) return ::DefWindowProcW(hWnd, msg, wParam, lParam); // Hold the window for the life of this method, in case it gets // destroyed during processing, unless we're in the dtor already. nsCOMPtr kungFuDeathGrip; if (!targetWindow->mInDtor) kungFuDeathGrip = do_QueryInterface((nsBaseWidget*)targetWindow); targetWindow->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; // Call ProcessMessage LRESULT retValue; if (targetWindow->ProcessMessage(msg, wParam, lParam, &retValue)) { return retValue; } LRESULT res = ::CallWindowProcW(targetWindow->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, MSGResult& aResult) { aResult.mResult = 0; aResult.mConsumed = true; bool eventDispatched = false; switch (aMsg.message) { case WM_CHAR: case WM_SYSCHAR: aResult.mResult = ProcessCharMessage(aMsg, &eventDispatched); break; case WM_KEYUP: case WM_SYSKEYUP: aResult.mResult = ProcessKeyUpMessage(aMsg, &eventDispatched); break; case WM_KEYDOWN: case WM_SYSKEYDOWN: aResult.mResult = 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) { aResult.mConsumed = nsWindowBase::DispatchPluginEvent(aMsg); } if (!Destroyed()) { 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; } bool nsWindow::ExternalHandlerProcessMessage(UINT aMessage, WPARAM& aWParam, LPARAM& aLParam, MSGResult& aResult) { if (mWindowHook.Notify(mWnd, aMessage, aWParam, aLParam, aResult)) { return true; } if (IMEHandler::ProcessMessage(this, aMessage, aWParam, aLParam, aResult)) { return true; } if (MouseScrollHandler::ProcessMessage(this, aMessage, aWParam, aLParam, aResult)) { return true; } if (PluginHasFocus()) { MSG nativeMsg = WinUtils::InitMSG(aMessage, aWParam, aLParam, mWnd); if (ProcessMessageForPlugin(nativeMsg, aResult)) { return true; } } return false; } // The main windows message processing method. bool nsWindow::ProcessMessage(UINT msg, WPARAM& wParam, LPARAM& lParam, LRESULT *aRetValue) { #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 MSGResult msgResult(aRetValue); if (ExternalHandlerProcessMessage(msg, wParam, lParam, msgResult)) { return (msgResult.mConsumed || !mWnd); } bool result = false; // call the default nsWindow proc *aRetValue = 0; // Glass hit testing w/custom transparent margins LRESULT dwmHitResult; if (mCustomNonClient && nsUXThemeData::CheckForCompositor() && WinUtils::dwmDwmDefWindowProcPtr(mWnd, msg, wParam, lParam, &dwmHitResult)) { *aRetValue = dwmHitResult; return true; } // (Large blocks of code should be broken out into OnEvent handlers.) 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", nullptr); 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(nullptr, "quit-application-granted", nullptr); obsServ->NotifyObservers(nullptr, "quit-application-forced", nullptr); obsServ->NotifyObservers(nullptr, "quit-application", nullptr); obsServ->NotifyObservers(nullptr, "profile-change-net-teardown", context.get()); obsServ->NotifyObservers(nullptr, "profile-change-teardown", context.get()); obsServ->NotifyObservers(nullptr, "profile-before-change", context.get()); obsServ->NotifyObservers(nullptr, "profile-before-change2", context.get()); // Then a controlled but very quick exit. _exit(0); } sCanQuit = TRI_UNKNOWN; result = true; break; case WM_SYSCOLORCHANGE: OnSysColorChanged(); break; case WM_THEMECHANGED: { // Update non-client margin offsets UpdateNonClientMargins(); nsUXThemeData::InitTitlebarInfo(); nsUXThemeData::UpdateNativeThemeInfo(); NotifyThemeChanged(); // Invalidate the window so that the repaint will // pick up the new theme. Invalidate(true, true, true); } break; case WM_FONTCHANGE: { // We only handle this message for the hidden window, // as we only need to update the (global) font list once // for any given change, not once per window! if (mWindowType != eWindowType_invisible) { break; } 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); ForceFontUpdate(); } //if (NS_SUCCEEDED(rv)) } break; case WM_NCCALCSIZE: { if (mCustomNonClient) { // If `wParam` is `FALSE`, `lParam` points to a `RECT` that contains // the proposed window rectangle for our window. During our // processing of the `WM_NCCALCSIZE` message, we are expected to // modify the `RECT` that `lParam` points to, so that its value upon // our return is the new client area. We must return 0 if `wParam` // is `FALSE`. // // If `wParam` is `TRUE`, `lParam` points to a `NCCALCSIZE_PARAMS` // struct. This struct contains an array of 3 `RECT`s, the first of // which has the exact same meaning as the `RECT` that is pointed to // by `lParam` when `wParam` is `FALSE`. The remaining `RECT`s, in // conjunction with our return value, can // be used to specify portions of the source and destination window // rectangles that are valid and should be preserved. We opt not to // implement an elaborate client-area preservation technique, and // simply return 0, which means "preserve the entire old client area // and align it with the upper-left corner of our new client area". RECT *clientRect = wParam ? &(reinterpret_cast(lParam))->rgrc[0] : (reinterpret_cast(lParam)); clientRect->top += (mCaptionHeight - mNonClientOffset.top); clientRect->left += (mHorResizeMargin - mNonClientOffset.left); clientRect->right -= (mHorResizeMargin - mNonClientOffset.right); clientRect->bottom -= (mVertResizeMargin - mNonClientOffset.bottom); result = true; *aRetValue = 0; } 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; // let the dwm handle nc painting on glass if(nsUXThemeData::CheckForCompositor()) break; 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; // let the dwm handle nc painting on glass if(nsUXThemeData::CheckForCompositor()) break; 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_CLOSE: // close request if (mWidgetListener) mWidgetListener->RequestWindowClose(this); 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(nullptr, 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 = WinUtils::InitMSG(msg, wParam, lParam, mWnd); result = ProcessCharMessage(nativeMsg, nullptr); DispatchPendingEvents(); } break; case WM_SYSKEYUP: case WM_KEYUP: { MSG nativeMsg = WinUtils::InitMSG(msg, wParam, lParam, mWnd); nativeMsg.time = ::GetMessageTime(); result = ProcessKeyUpMessage(nativeMsg, nullptr); DispatchPendingEvents(); } break; case WM_SYSKEYDOWN: case WM_KEYDOWN: { MSG nativeMsg = WinUtils::InitMSG(msg, wParam, lParam, mWnd); result = ProcessKeyDownMessage(nativeMsg, nullptr); 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, WidgetMouseEvent::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, WidgetMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); } break; case WM_LBUTTONUP: { result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, wParam, lParam, false, WidgetMouseEvent::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, WidgetMouseEvent::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 ? WidgetMouseEvent::eLeftButton : WidgetMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); if (lParam != -1 && !result && mCustomNonClient) { WidgetMouseEvent event(true, NS_MOUSE_MOZHITTEST, this, WidgetMouseEvent::eReal, WidgetMouseEvent::eNormal); event.refPoint = LayoutDeviceIntPoint(GET_X_LPARAM(pos), GET_Y_LPARAM(pos)); event.inputSource = MOUSE_INPUT_SOURCE(); event.mFlags.mOnlyChromeDispatch = true; if (DispatchWindowEvent(&event)) { // 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, WidgetMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_MBUTTONDOWN: result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, wParam, lParam, false, WidgetMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_MBUTTONUP: result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, wParam, lParam, false, WidgetMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_MBUTTONDBLCLK: result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, wParam, lParam, false, WidgetMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCMBUTTONDOWN: result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, 0, lParamToClient(lParam), false, WidgetMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCMBUTTONUP: result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, 0, lParamToClient(lParam), false, WidgetMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCMBUTTONDBLCLK: result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, 0, lParamToClient(lParam), false, WidgetMouseEvent::eMiddleButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_RBUTTONDOWN: result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, wParam, lParam, false, WidgetMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_RBUTTONUP: result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, wParam, lParam, false, WidgetMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_RBUTTONDBLCLK: result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, wParam, lParam, false, WidgetMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCRBUTTONDOWN: result = DispatchMouseEvent(NS_MOUSE_BUTTON_DOWN, 0, lParamToClient(lParam), false, WidgetMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCRBUTTONUP: result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, 0, lParamToClient(lParam), false, WidgetMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_NCRBUTTONDBLCLK: result = DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, 0, lParamToClient(lParam), false, WidgetMouseEvent::eRightButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_EXITSIZEMOVE: if (!sIsInMouseCapture) { NotifySizeMoveDone(); } break; case WM_NCLBUTTONDBLCLK: DispatchMouseEvent(NS_MOUSE_DOUBLECLICK, 0, lParamToClient(lParam), false, WidgetMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); result = DispatchMouseEvent(NS_MOUSE_BUTTON_UP, 0, lParamToClient(lParam), false, WidgetMouseEvent::eLeftButton, MOUSE_INPUT_SOURCE()); DispatchPendingEvents(); break; case WM_APPCOMMAND: { uint32_t appCommand = GET_APPCOMMAND_LPARAM(lParam); uint32_t contentCommandMessage = NS_EVENT_NULL; // XXX After we implement KeyboardEvent.key, we should dispatch the // key event if (GET_DEVICE_LPARAM(lParam) == FAPPCOMMAND_KEY) is. 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: case APPCOMMAND_CLOSE: case APPCOMMAND_FIND: case APPCOMMAND_HELP: case APPCOMMAND_NEW: case APPCOMMAND_OPEN: case APPCOMMAND_PRINT: case APPCOMMAND_SAVE: case APPCOMMAND_FORWARD_MAIL: case APPCOMMAND_REPLY_TO_MAIL: case APPCOMMAND_SEND_MAIL: // We shouldn't consume the message always because if we don't handle // the message, the sender (typically, utility of keyboard or mouse) // may send other key messages which indicate well known shortcut key. if (DispatchCommandEvent(appCommand)) { // tell the driver that we handled the event *aRetValue = 1; result = true; } break; // Use content command for following commands: case APPCOMMAND_COPY: contentCommandMessage = NS_CONTENT_COMMAND_COPY; break; case APPCOMMAND_CUT: contentCommandMessage = NS_CONTENT_COMMAND_CUT; break; case APPCOMMAND_PASTE: contentCommandMessage = NS_CONTENT_COMMAND_PASTE; break; case APPCOMMAND_REDO: contentCommandMessage = NS_CONTENT_COMMAND_REDO; break; case APPCOMMAND_UNDO: contentCommandMessage = NS_CONTENT_COMMAND_UNDO; break; } if (contentCommandMessage) { WidgetContentCommandEvent contentCommand(true, contentCommandMessage, this); DispatchWindowEvent(&contentCommand); // tell the driver that we handled the event *aRetValue = 1; result = true; } // default = false - tell the driver that the event was not handled } break; // 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 // gJustGotDeactivate flags and activate/deactivate once the focus // events arrive. case WM_ACTIVATE: if (mWidgetListener) { int32_t 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 deactivate right away. if (HIWORD(wParam)) DispatchFocusToTopLevelWindow(false); else sJustGotDeactivate = true; if (mIsTopWidgetWindow) mLastKeyboardLayout = KeyboardLayout::GetInstance()->GetLayout(); } else { StopFlashing(); sJustGotActivate = true; WidgetMouseEvent event(true, NS_MOUSE_ACTIVATE, this, WidgetMouseEvent::eReal); InitEvent(event); ModifierKeyState modifierKeyState; modifierKeyState.InitInputEvent(event); DispatchWindowEvent(&event); if (sSwitchKeyboardLayout && mLastKeyboardLayout) ActivateKeyboardLayout(mLastKeyboardLayout, 0); } } break; case WM_MOUSEACTIVATE: // 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. if (IsPopup() && IsOwnerForegroundWindow()) { *aRetValue = MA_NOACTIVATE; result = true; } break; case WM_WINDOWPOSCHANGING: { LPWINDOWPOS info = (LPWINDOWPOS)lParam; OnWindowPosChanging(info); result = true; } break; case WM_GETMINMAXINFO: { MINMAXINFO* mmi = (MINMAXINFO*)lParam; // Set the constraints. The minimum size should also be constrained to the // default window maximum size so that it fits on screen. mmi->ptMinTrackSize.x = std::min((int32_t)mmi->ptMaxTrackSize.x, std::max((int32_t)mmi->ptMinTrackSize.x, mSizeConstraints.mMinSize.width)); mmi->ptMinTrackSize.y = std::min((int32_t)mmi->ptMaxTrackSize.y, std::max((int32_t)mmi->ptMinTrackSize.y, mSizeConstraints.mMinSize.height)); mmi->ptMaxTrackSize.x = std::min((int32_t)mmi->ptMaxTrackSize.x, mSizeConstraints.mMaxSize.width); mmi->ptMaxTrackSize.y = std::min((int32_t)mmi->ptMaxTrackSize.y, mSizeConstraints.mMaxSize.height); } break; case WM_SETFOCUS: // If previous focused window isn't ours, it must have received the // redirected message. So, we should forget it. if (!WinUtils::IsOurProcessWindow(HWND(wParam))) { RedirectedKeyDownMessageManager::Forget(); } if (sJustGotActivate) { DispatchFocusToTopLevelWindow(true); } break; case WM_KILLFOCUS: if (sJustGotDeactivate) { DispatchFocusToTopLevelWindow(false); } break; case WM_WINDOWPOSCHANGED: { WINDOWPOS* wp = (LPWINDOWPOS)lParam; OnWindowPosChanged(wp); result = true; } break; case WM_INPUTLANGCHANGEREQUEST: *aRetValue = TRUE; result = false; break; case WM_INPUTLANGCHANGE: KeyboardLayout::GetInstance()-> OnLayoutChange(reinterpret_cast(lParam)); result = false; // always pass to child window 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 a11y::Accessible* rootAccessible = GetAccessible(); // Held by a11y cache if (rootAccessible) { IAccessible *msaaAccessible = nullptr; 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_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); NotifyThemeChanged(); UpdateGlass(); Invalidate(true, true, true); break; 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. int32_t action = LOWORD(wParam); if (action == UIS_SET || action == UIS_CLEAR) { int32_t flags = HIWORD(wParam); UIStateChangeType showAccelerators = UIStateChangeType_NoChange; UIStateChangeType showFocusRings = UIStateChangeType_NoChange; if (flags & UISF_HIDEACCEL) showAccelerators = (action == UIS_SET) ? UIStateChangeType_Clear : UIStateChangeType_Set; if (flags & UISF_HIDEFOCUS) showFocusRings = (action == UIS_SET) ? UIStateChangeType_Clear : UIStateChangeType_Set; NotifyUIStateChanged(showAccelerators, showFocusRings); } 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; case WM_TOUCH: result = OnTouch(wParam, lParam); if (result) { *aRetValue = 0; } break; 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); WidgetGestureNotifyEvent gestureNotifyEvent(true, NS_GESTURENOTIFY_EVENT_START, this); gestureNotifyEvent.refPoint = LayoutDeviceIntPoint::FromUntyped(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: { WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_DELETE, this); DispatchWindowEvent(&command); result = true; } break; case WM_CUT: { WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_CUT, this); DispatchWindowEvent(&command); result = true; } break; case WM_COPY: { WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_COPY, this); DispatchWindowEvent(&command); result = true; } break; case WM_PASTE: { WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_PASTE, this); DispatchWindowEvent(&command); result = true; } break; case EM_UNDO: { WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_UNDO, this); DispatchWindowEvent(&command); *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled); result = true; } break; case EM_REDO: { WidgetContentCommandEvent 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) { WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_PASTE, this, true); DispatchWindowEvent(&command); *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled); result = true; } } break; case EM_CANUNDO: { WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_UNDO, this, true); DispatchWindowEvent(&command); *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled); result = true; } break; case EM_CANREDO: { WidgetContentCommandEvent command(true, NS_CONTENT_COMMAND_REDO, this, true); DispatchWindowEvent(&command); *aRetValue = (LRESULT)(command.mSucceeded && command.mIsEnabled); result = true; } break; default: { if (msg == nsAppShell::GetTaskbarButtonCreatedMessage()) SetHasTaskbarIconBeenCreated(); 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(false); } } } } break; case WM_SETTINGCHANGE: if (IsWin8OrLater() && lParam && !wcsicmp(L"ConvertibleSlateMode", (wchar_t*)lParam)) { // If we're switching into slate mode, switch to Metro for hardware // that supports this feature if the pref is set. if (GetSystemMetrics(SM_CONVERTIBLESLATEMODE) == 0 && Preferences::GetBool("browser.shell.desktop-auto-switch-enabled", false)) { nsCOMPtr appStartup(do_GetService(NS_APPSTARTUP_CONTRACTID)); if (appStartup) { appStartup->Quit(nsIAppStartup::eForceQuit | nsIAppStartup::eRestartTouchEnvironment); } } } 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. * **************************************************************/ int32_t nsWindow::ClientMarginHitTestPoint(int32_t mx, int32_t my) { if (mSizeMode == nsSizeMode_Minimized || mSizeMode == nsSizeMode_Fullscreen) { return HTCLIENT; } // 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 int32_t testResult = HTCLIENT; bool isResizable = (mBorderStyle & (eBorderStyle_all | eBorderStyle_resizeh | eBorderStyle_default)) > 0 ? true : false; if (mSizeMode == nsSizeMode_Maximized) isResizable = false; // Ensure being accessible to borders of window. Even if contents are in // this area, the area must behave as border. nsIntMargin nonClientSize(std::max(mCaptionHeight - mNonClientOffset.top, kResizableBorderMinSize), std::max(mHorResizeMargin - mNonClientOffset.right, kResizableBorderMinSize), std::max(mVertResizeMargin - mNonClientOffset.bottom, kResizableBorderMinSize), std::max(mHorResizeMargin - mNonClientOffset.left, kResizableBorderMinSize)); bool allowContentOverride = mSizeMode == nsSizeMode_Maximized || (mx >= winRect.left + nonClientSize.left && mx <= winRect.right - nonClientSize.right && my >= winRect.top + nonClientSize.top && my <= winRect.bottom - nonClientSize.bottom); // The border size. If there is no content under mouse cursor, the border // size should be larger than the values in system settings. Otherwise, // contents under the mouse cursor should be able to override the behavior. // E.g., user must expect that Firefox button always opens the popup menu // even when the user clicks on the above edge of it. nsIntMargin borderSize(std::max(nonClientSize.top, mVertResizeMargin), std::max(nonClientSize.right, mHorResizeMargin), std::max(nonClientSize.bottom, mVertResizeMargin), std::max(nonClientSize.left, mHorResizeMargin)); bool top = false; bool bottom = false; bool left = false; bool right = false; if (my >= winRect.top && my < winRect.top + borderSize.top) { top = true; } else if (my <= winRect.bottom && my > winRect.bottom - borderSize.bottom) { bottom = true; } // (the 2x case here doubles the resize area for corners) int multiplier = (top || bottom) ? 2 : 1; if (mx >= winRect.left && mx < winRect.left + (multiplier * borderSize.left)) { left = true; } else if (mx <= winRect.right && mx > winRect.right - (multiplier * borderSize.right)) { right = true; } if (isResizable) { 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; } } else { if (top) testResult = HTCAPTION; else if (bottom || left || right) testResult = HTBORDER; } if (!sIsInMouseCapture && allowContentOverride) { POINT pt = { mx, my }; ::ScreenToClient(mWnd, &pt); if (pt.x == mCachedHitTestPoint.x && pt.y == mCachedHitTestPoint.y && TimeStamp::Now() - mCachedHitTestTime < TimeDuration::FromMilliseconds(HITTEST_CACHE_LIFETIME_MS)) { testResult = mCachedHitTestResult; } else { WidgetMouseEvent event(true, NS_MOUSE_MOZHITTEST, this, WidgetMouseEvent::eReal, WidgetMouseEvent::eNormal); event.refPoint = LayoutDeviceIntPoint(pt.x, pt.y); event.inputSource = MOUSE_INPUT_SOURCE(); event.mFlags.mOnlyChromeDispatch = true; bool result = DispatchWindowEvent(&event); 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; } mCachedHitTestPoint = pt; mCachedHitTestTime = TimeStamp::Now(); mCachedHitTestResult = testResult; } } return testResult; } void nsWindow::PostSleepWakeNotification(const bool aIsSleepMode) { if (aIsSleepMode == gIsSleepMode) return; gIsSleepMode = aIsSleepMode; nsCOMPtr observerService = mozilla::services::GetObserverService(); if (observerService) observerService->NotifyObservers(nullptr, aIsSleepMode ? NS_WIDGET_SLEEP_OBSERVER_TOPIC : NS_WIDGET_WAKE_OBSERVER_TOPIC, nullptr); } LRESULT nsWindow::ProcessCharMessage(const MSG &aMsg, bool *aEventDispatched) { if (IMEHandler::IsComposingOn(this)) { IMEHandler::NotifyIME(this, REQUEST_TO_COMMIT_COMPOSITION); } // 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) ModifierKeyState modKeyState; NativeKey nativeKey(this, aMsg, modKeyState); return static_cast(nativeKey.HandleCharMessage(aMsg, aEventDispatched)); } LRESULT nsWindow::ProcessKeyUpMessage(const MSG &aMsg, bool *aEventDispatched) { if (IMEHandler::IsComposingOn(this)) { return 0; } ModifierKeyState modKeyState; NativeKey nativeKey(this, aMsg, modKeyState); return static_cast(nativeKey.HandleKeyUpMessage(aEventDispatched)); } LRESULT nsWindow::ProcessKeyDownMessage(const MSG &aMsg, bool *aEventDispatched) { // If this method doesn't call NativeKey::HandleKeyDownMessage(), this method // must clean up the redirected message information itself. For more // information, see above comment of // RedirectedKeyDownMessageManager::AutoFlusher class definition in // KeyboardLayout.h. RedirectedKeyDownMessageManager::AutoFlusher redirectedMsgFlusher(this, aMsg); ModifierKeyState modKeyState; LRESULT result = 0; if (!IMEHandler::IsComposingOn(this)) { NativeKey nativeKey(this, aMsg, modKeyState); result = static_cast(nativeKey.HandleKeyDownMessage(aEventDispatched)); // HandleKeyDownMessage cleaned up the redirected message information // itself, so, we should do nothing. redirectedMsgFlusher.Cancel(); } if (aMsg.wParam == VK_MENU || (aMsg.wParam == VK_F10 && !modKeyState.IsShift())) { // 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(int32_t aNativeKeyboardLayout, int32_t aNativeKeyCode, uint32_t aModifierFlags, const nsAString& aCharacters, const nsAString& aUnmodifiedCharacters) { KeyboardLayout* keyboardLayout = KeyboardLayout::GetInstance(); return keyboardLayout->SynthesizeNativeKeyEvent( this, aNativeKeyboardLayout, aNativeKeyCode, aModifierFlags, aCharacters, aUnmodifiedCharacters); } nsresult nsWindow::SynthesizeNativeMouseEvent(nsIntPoint aPoint, uint32_t aNativeMessage, uint32_t aModifierFlags) { ::SetCursorPos(aPoint.x, 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; } nsresult nsWindow::SynthesizeNativeMouseScrollEvent(nsIntPoint aPoint, uint32_t aNativeMessage, double aDeltaX, double aDeltaY, double aDeltaZ, uint32_t aModifierFlags, uint32_t aAdditionalFlags) { return MouseScrollHandler::SynthesizeNativeMouseScrollEvent( this, aPoint, aNativeMessage, (aNativeMessage == WM_MOUSEWHEEL || aNativeMessage == WM_VSCROLL) ? static_cast(aDeltaY) : static_cast(aDeltaX), aModifierFlags, aAdditionalFlags); } /************************************************************** * * SECTION: OnXXX message handlers * * For message handlers that need to be broken out or * implemented in specific platform code. * **************************************************************/ void nsWindow::OnWindowPosChanged(WINDOWPOS* wp) { if (wp == nullptr) return; #ifdef WINSTATE_DEBUG_OUTPUT if (mWnd == WinUtils::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; WINDOWPLACEMENT pl; pl.length = sizeof(pl); ::GetWindowPlacement(mWnd, &pl); // Windows has just changed the size mode of this window. The call to // SizeModeChanged 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) if (pl.showCmd == SW_SHOWMAXIMIZED) mSizeMode = (mFullscreenMode ? nsSizeMode_Fullscreen : nsSizeMode_Maximized); else if (pl.showCmd == SW_SHOWMINIMIZED) mSizeMode = nsSizeMode_Minimized; else if (mFullscreenMode) mSizeMode = nsSizeMode_Fullscreen; else mSizeMode = nsSizeMode_Normal; // 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 == 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 if (mWidgetListener) mWidgetListener->SizeModeChanged(mSizeMode); // If window was restored, window activation was bypassed during the // SetSizeMode call originating from OnWindowPosChanging to avoid saving // pre-restore attributes. Force activation now to get correct attributes. if (mLastSizeMode != nsSizeMode_Normal && mSizeMode == nsSizeMode_Normal) DispatchFocusToTopLevelWindow(true); // Skip window size change events below on minimization. if (mSizeMode == nsSizeMode_Minimized) return; } // Handle window position changes if (!(wp->flags & SWP_NOMOVE)) { mBounds.x = wp->x; mBounds.y = wp->y; if (mWidgetListener) { mWidgetListener->WindowMoved(this, wp->x, wp->y); } } // Handle window size changes if (!(wp->flags & SWP_NOSIZE)) { RECT r; int32_t 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, nullptr, 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, nullptr, 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. if (mSizeMode == nsSizeMode_Maximized) { if (UpdateNonClientMargins(nsSizeMode_Maximized, true)) { // gecko resize event already sent by UpdateNonClientMargins. 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 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); nsSizeMode 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; if (mWidgetListener) mWidgetListener->SizeModeChanged(sizeMode); UpdateNonClientMargins(sizeMode, false); } // enforce local z-order rules if (!(info->flags & SWP_NOZORDER)) { HWND hwndAfter = info->hwndInsertAfter; nsWindow *aboveWindow = 0; nsWindowZ placement; if (hwndAfter == HWND_BOTTOM) placement = nsWindowZBottom; else if (hwndAfter == HWND_TOP || hwndAfter == HWND_TOPMOST || hwndAfter == HWND_NOTOPMOST) placement = nsWindowZTop; else { placement = nsWindowZRelative; aboveWindow = WinUtils::GetNSWindowPtr(hwndAfter); } if (mWidgetListener) { nsCOMPtr actualBelow = nullptr; if (mWidgetListener->ZLevelChanged(false, &placement, aboveWindow, getter_AddRefs(actualBelow))) { if (placement == nsWindowZBottom) info->hwndInsertAfter = HWND_BOTTOM; else if (placement == nsWindowZTop) info->hwndInsertAfter = HWND_TOP; else { info->hwndInsertAfter = (HWND)actualBelow->GetNativeData(NS_NATIVE_WINDOW); } } } } // 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(0); } } bool nsWindow::OnTouch(WPARAM wParam, LPARAM lParam) { uint32_t cInputs = LOWORD(wParam); PTOUCHINPUT pInputs = new TOUCHINPUT[cInputs]; if (mGesture.GetTouchInputInfo((HTOUCHINPUT)lParam, cInputs, pInputs)) { WidgetTouchEvent* touchEventToSend = nullptr; WidgetTouchEvent* touchEndEventToSend = nullptr; nsEventStatus status; // Walk across the touch point array processing each contact point for (uint32_t i = 0; i < cInputs; i++) { uint32_t msg; if (pInputs[i].dwFlags & (TOUCHEVENTF_DOWN | TOUCHEVENTF_MOVE)) { // Create a standard touch event to send if (!touchEventToSend) { touchEventToSend = new WidgetTouchEvent(true, NS_TOUCH_MOVE, this); touchEventToSend->time = ::GetMessageTime(); ModifierKeyState modifierKeyState; modifierKeyState.InitInputEvent(*touchEventToSend); } // Pres shell expects this event to be a NS_TOUCH_START if new contact // points have been added since the last event sent. if (pInputs[i].dwFlags & TOUCHEVENTF_DOWN) { touchEventToSend->message = msg = NS_TOUCH_START; } else { msg = NS_TOUCH_MOVE; } } else if (pInputs[i].dwFlags & TOUCHEVENTF_UP) { // Pres shell expects removed contacts points to be delivered in a // separate NS_TOUCH_END event containing only the contact points // that were removed. if (!touchEndEventToSend) { touchEndEventToSend = new WidgetTouchEvent(true, NS_TOUCH_END, this); touchEndEventToSend->time = ::GetMessageTime(); ModifierKeyState modifierKeyState; modifierKeyState.InitInputEvent(*touchEndEventToSend); } msg = NS_TOUCH_END; } else { // Filter out spurious Windows events we don't understand, like palm // contact. continue; } // Setup the touch point we'll append to the touch event array nsPointWin touchPoint; touchPoint.x = TOUCH_COORD_TO_PIXEL(pInputs[i].x); touchPoint.y = TOUCH_COORD_TO_PIXEL(pInputs[i].y); touchPoint.ScreenToClient(mWnd); nsRefPtr touch = new Touch(pInputs[i].dwID, touchPoint, /* radius, if known */ pInputs[i].dwFlags & TOUCHINPUTMASKF_CONTACTAREA ? nsIntPoint( TOUCH_COORD_TO_PIXEL(pInputs[i].cxContact) / 2, TOUCH_COORD_TO_PIXEL(pInputs[i].cyContact) / 2) : nsIntPoint(1,1), /* rotation angle and force */ 0.0f, 0.0f); // Append to the appropriate event if (msg == NS_TOUCH_START || msg == NS_TOUCH_MOVE) { touchEventToSend->touches.AppendElement(touch); } else { touchEndEventToSend->touches.AppendElement(touch); } } // Dispatch touch start and move event if we have one. if (touchEventToSend) { DispatchEvent(touchEventToSend, status); delete touchEventToSend; } // Dispatch touch end event if we have one. if (touchEndEventToSend) { DispatchEvent(touchEndEventToSend, status); delete touchEndEventToSend; } } delete [] pInputs; mGesture.CloseTouchInputHandle((HTOUCHINPUT)lParam); return true; } static int32_t RoundDown(double aDouble) { return aDouble > 0 ? static_cast(floor(aDouble)) : static_cast(ceil(aDouble)); } // 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)) { if ( !mGesture.ProcessPanMessage(mWnd, wParam, lParam) ) return false; // ignore nsEventStatus status; WidgetWheelEvent wheelEvent(true, NS_WHEEL_WHEEL, this); ModifierKeyState modifierKeyState; modifierKeyState.InitInputEvent(wheelEvent); wheelEvent.button = 0; wheelEvent.time = ::GetMessageTime(); wheelEvent.inputSource = nsIDOMMouseEvent::MOZ_SOURCE_TOUCH; bool endFeedback = true; if (mGesture.PanDeltaToPixelScroll(wheelEvent)) { DispatchEvent(&wheelEvent, status); } if (mDisplayPanFeedback) { mGesture.UpdatePanFeedbackX(mWnd, DeprecatedAbs(RoundDown(wheelEvent.overflowDeltaX)), endFeedback); mGesture.UpdatePanFeedbackY(mWnd, DeprecatedAbs(RoundDown(wheelEvent.overflowDeltaY)), endFeedback); mGesture.PanFeedbackFinalize(mWnd, endFeedback); } mGesture.CloseGestureInfoHandle((HGESTUREINFO)lParam); return true; } // Other gestures translate into simple gesture events: WidgetSimpleGestureEvent 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 ModifierKeyState modifierKeyState; modifierKeyState.InitInputEvent(event); 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 } static BOOL WINAPI EnumFirstChild(HWND hwnd, LPARAM lParam) { *((HWND*)lParam) = hwnd; return FALSE; } static void InvalidatePluginAsWorkaround(nsWindow *aWindow, const nsIntRect &aRect) { aWindow->Invalidate(aRect); // XXX - Even more evil workaround!! See bug 762948, flash's bottom // level sandboxed window doesn't seem to get our invalidate. We send // an invalidate to it manually. This is totally specialized for this // bug, for other child window structures this will just be a more or // less bogus invalidate but since that should not have any bad // side-effects this will have to do for now. HWND current = (HWND)aWindow->GetNativeData(NS_NATIVE_WINDOW); RECT windowRect; RECT parentRect; ::GetWindowRect(current, &parentRect); HWND next = current; do { current = next; ::EnumChildWindows(current, &EnumFirstChild, (LPARAM)&next); ::GetWindowRect(next, &windowRect); // This is relative to the screen, adjust it to be relative to the // window we're reconfiguring. windowRect.left -= parentRect.left; windowRect.top -= parentRect.top; } while (next != current && windowRect.top == 0 && windowRect.left == 0); if (windowRect.top == 0 && windowRect.left == 0) { RECT rect; rect.left = aRect.x; rect.top = aRect.y; rect.right = aRect.XMost(); rect.bottom = aRect.YMost(); ::InvalidateRect(next, &rect, FALSE); } } 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 (uint32_t 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() != LayersBackend::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); nsIntRect toInvalidate = r.GetBounds(); InvalidatePluginAsWorkaround(w, toInvalidate); } } rv = w->SetWindowClipRegion(configuration.mClipRegion, false); NS_ENSURE_SUCCESS(rv, rv); } return NS_OK; } static HRGN CreateHRGNFromArray(const nsTArray& aRects) { int32_t size = sizeof(RGNDATAHEADER) + sizeof(RECT)*aRects.Length(); nsAutoTArray buf; if (!buf.SetLength(size)) return nullptr; 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 (uint32_t 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(nullptr, buf.Length(), data); } static void ArrayFromRegion(const nsIntRegion& aRegion, nsTArray& aRects) { const nsIntRect* r; for (nsIntRegionRectIterator iter(aRegion); (r = iter.Next());) { aRects.AppendElement(*r); } } 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, rects); // 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 visible, 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)) { ::ShowWindow(mWnd, SW_HIDE); ::EnableWindow(mWnd, FALSE); } else { ::EnableWindow(mWnd, TRUE); ::ShowWindow(mWnd, SW_SHOW); } } 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 destroy notification. if (!mInDtor) NotifyWindowDestroyed(); // Prevent the widget from sending additional events. mWidgetListener = nullptr; mAttachedWidgetListener = nullptr; // 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 mWidgetListener is cleared and the subclass is reset, sCurrentWindow can be // cleared. (It's used in tracking windows for mouse events.) if (sCurrentWindow == this) sCurrentWindow = nullptr; // 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(nullptr)'s // remove child on the parent already took place in nsBaseWidget's Destroy call above. //SetParent(nullptr); mParent = nullptr; // 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. nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener(); nsCOMPtr rollupWidget; if (rollupListener) { rollupWidget = rollupListener->GetRollupWidget(); } if (this == rollupWidget) { if ( rollupListener ) rollupListener->Rollup(0, nullptr, nullptr); CaptureRollupEvents(nullptr, false); } IMEHandler::OnDestroyWindow(this); // Turn off mouse trails if enabled. MouseTrailer* mtrailer = nsToolkit::gMouseTrailer; if (mtrailer) { if (mtrailer->GetMouseTrailerWindow() == mWnd) mtrailer->DestroyTimer(); if (mtrailer->GetCaptureWindow() == mWnd) mtrailer->SetCaptureWindow(nullptr); } // Free GDI window class objects if (mBrush) { VERIFY(::DeleteObject(mBrush)); mBrush = nullptr; } // 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 = nullptr; } // Send a resize message to the listener bool nsWindow::OnResize(nsIntRect &aWindowRect) { #ifdef CAIRO_HAS_D2D_SURFACE if (mD2DWindowSurface) { mD2DWindowSurface = nullptr; Invalidate(); } #endif bool result = mWidgetListener ? mWidgetListener->WindowResized(this, aWindowRect.width, aWindowRect.height) : false; // If there is an attached view, inform it as well as the normal widget listener. if (mAttachedWidgetListener) { return mAttachedWidgetListener->WindowResized(this, aWindowRect.width, aWindowRect.height); } return result; } bool nsWindow::OnHotKey(WPARAM wParam, LPARAM lParam) { return true; } // Can be overriden. Controls auto-erase of background. bool nsWindow::AutoErase(HDC dc) { return false; } void nsWindow::AllowD3D9Callback(nsWindow *aWindow) { if (aWindow->mLayerManager && !aWindow->ShouldUseOffMainThreadCompositing()) { aWindow->mLayerManager->Destroy(); aWindow->mLayerManager = nullptr; } } void nsWindow::AllowD3D9WithReinitializeCallback(nsWindow *aWindow) { if (aWindow->mLayerManager && !aWindow->ShouldUseOffMainThreadCompositing()) { aWindow->mLayerManager->Destroy(); aWindow->mLayerManager = nullptr; (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. If we're using OMTC we don't want to // recreate out layer manager and its compositor either. This is even // more wasteful. // // 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); } } void nsWindow::GetPreferredCompositorBackends(nsTArray& aHints) { 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 (!(prefs.mDisableAcceleration || mTransparencyMode == eTransparencyTransparent)) { if (prefs.mPreferOpenGL) { aHints.AppendElement(LayersBackend::LAYERS_OPENGL); } if (!prefs.mPreferD3D9) { aHints.AppendElement(LayersBackend::LAYERS_D3D11); } aHints.AppendElement(LayersBackend::LAYERS_D3D9); } aHints.AppendElement(LayersBackend::LAYERS_BASIC); } void nsWindow::WindowUsesOMTC() { ULONG_PTR style = ::GetClassLongPtr(mWnd, GCL_STYLE); if (!style) { NS_WARNING("Could not get window class style"); return; } style |= CS_HREDRAW | CS_VREDRAW; DebugOnly result = ::SetClassLongPtr(mWnd, GCL_STYLE, style); NS_WARN_IF_FALSE(result, "Could not reset window class style"); } 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) { int32_t 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. NotifySysColorChanged(); } } /************************************************************** ************************************************************** ** ** BLOCK: IME management and accessibility ** ** Handles managing IME input and accessibility. ** ************************************************************** **************************************************************/ NS_IMETHODIMP nsWindow::NotifyIME(NotificationToIME aNotification) { return IMEHandler::NotifyIME(this, aNotification); } NS_IMETHODIMP_(void) nsWindow::SetInputContext(const InputContext& aContext, const InputContextAction& aAction) { InputContext newInputContext = aContext; IMEHandler::SetInputContext(this, newInputContext, aAction); mInputContext = newInputContext; } NS_IMETHODIMP_(InputContext) nsWindow::GetInputContext() { mInputContext.mIMEState.mOpen = IMEState::CLOSED; if (WinUtils::IsIMEEnabled(mInputContext) && IMEHandler::GetOpenState(this)) { mInputContext.mIMEState.mOpen = IMEState::OPEN; } else { mInputContext.mIMEState.mOpen = IMEState::CLOSED; } return mInputContext; } NS_IMETHODIMP nsWindow::GetToggledKeyState(uint32_t 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; } NS_IMETHODIMP nsWindow::NotifyIMEOfTextChange(uint32_t aStart, uint32_t aOldEnd, uint32_t aNewEnd) { return IMEHandler::NotifyIMEOfTextChange(aStart, aOldEnd, aNewEnd); } nsIMEUpdatePreference nsWindow::GetIMEUpdatePreference() { return IMEHandler::GetUpdatePreference(); } #ifdef ACCESSIBILITY #ifdef DEBUG #define NS_LOG_WMGETOBJECT(aWnd, aHwnd, aAcc) \ if (a11y::logging::IsEnabled(a11y::logging::ePlatforms)) { \ printf("Get the window:\n {\n HWND: %d, parent HWND: %d, wndobj: %p,\n",\ aHwnd, ::GetParent(aHwnd), aWnd); \ printf(" acc: %p", aAcc); \ if (aAcc) { \ nsAutoString name; \ aAcc->Name(name); \ printf(", accname: %s", NS_ConvertUTF16toUTF8(name).get()); \ } \ printf("\n }\n"); \ } #else #define NS_LOG_WMGETOBJECT(aWnd, aHwnd, aAcc) #endif a11y::Accessible* nsWindow::GetAccessible() { // If the pref was ePlatformIsDisabled, return null here, disabling a11y. if (a11y::PlatformDisabledState() == a11y::ePlatformIsDisabled) return nullptr; if (mInDtor || mOnDestroyCalled || mWindowType == eWindowType_invisible) { return nullptr; } // In case of popup window return a popup accessible. nsView* view = nsView::GetViewFor(this); if (view) { nsIFrame* frame = view->GetFrame(); if (frame && nsLayoutUtils::IsPopup(frame)) { nsCOMPtr accService = services::GetAccessibilityService(); if (accService) { a11y::DocAccessible* docAcc = GetAccService()->GetDocAccessible(frame->PresContext()->PresShell()); if (docAcc) { NS_LOG_WMGETOBJECT(this, mWnd, docAcc->GetAccessibleOrDescendant(frame->GetContent())); return docAcc->GetAccessibleOrDescendant(frame->GetContent()); } } } } // otherwise root document accessible. NS_LOG_WMGETOBJECT(this, mWnd, GetRootAccessible()); return GetRootAccessible(); } #endif /************************************************************** ************************************************************** ** ** BLOCK: Transparency ** ** Window transparency helpers. ** ************************************************************** **************************************************************/ #ifdef MOZ_XUL void nsWindow::ResizeTranslucentWindow(int32_t aNewWidth, int32_t 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), gfxImageFormat::ARGB32); mTransparentSurface = newSurface; mMemoryDC = nullptr; } else #endif { nsRefPtr newSurface = new gfxWindowsSurface(gfxIntSize(aNewWidth, aNewHeight), gfxImageFormat::ARGB32); mTransparentSurface = newSurface; mMemoryDC = newSurface->GetDC(); } } void nsWindow::SetWindowTranslucencyInner(nsTransparencyMode aMode) { if (aMode == mTransparencyMode) return; // stop on dialogs and popups! HWND hWnd = WinUtils::GetTopLevelHWND(mWnd, true); nsWindow* parent = WinUtils::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 (HasGlass()) memset(&mGlassMargins, 0, sizeof mGlassMargins); mTransparencyMode = aMode; SetupTranslucentWindowMemoryBitmap(aMode); UpdateGlass(); } void nsWindow::SetupTranslucentWindowMemoryBitmap(nsTransparencyMode aMode) { if (eTransparencyTransparent == aMode) { ResizeTranslucentWindow(mBounds.width, mBounds.height, true); } else { mTransparentSurface = nullptr; mMemoryDC = nullptr; } } void nsWindow::ClearTranslucentWindow() { if (mTransparentSurface) { nsRefPtr thebesContext = new gfxContext(mTransparentSurface); thebesContext->SetOperator(gfxContext::OPERATOR_CLEAR); thebesContext->Paint(); UpdateTranslucentWindow(); } } 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 = WinUtils::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, nullptr, (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(nullptr, 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 != nullptr) { 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 (WinUtils::GetNativeMessage(wParam)) { case WM_LBUTTONDOWN: case WM_RBUTTONDOWN: case WM_MBUTTONDOWN: case WM_MOUSEWHEEL: case WM_MOUSEHWHEEL: { MOUSEHOOKSTRUCT* ms = (MOUSEHOOKSTRUCT*)lParam; nsIWidget* mozWin = WinUtils::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, nullptr, 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, nullptr, 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, nullptr, 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 = nullptr; } if (sMsgFilterHook) { DISPLAY_NMM_PRT("***** Unhooking sMsgFilterHook!\n"); if (!::UnhookWindowsHookEx(sMsgFilterHook)) { DISPLAY_NMM_PRT("***** UnhookWindowsHookEx failed for sMsgFilterHook!\n"); } sMsgFilterHook = nullptr; } if (sCallMouseHook) { DISPLAY_NMM_PRT("***** Unhooking sCallMouseHook!\n"); if (!::UnhookWindowsHookEx(sCallMouseHook)) { DISPLAY_NMM_PRT("***** UnhookWindowsHookEx failed for sCallMouseHook!\n"); } sCallMouseHook = nullptr; } } // 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 nullptr then we need to use the ID to kill the timer BOOL status = ::KillTimer(nullptr, sHookTimerId); NS_ASSERTION(status, "Hook Timer was not killed."); sHookTimerId = 0; } if (sRollupMsgId != 0) { // Note: DealWithPopups does the check to make sure that the rollup widget is set. LRESULT popupHandlingResult; nsAutoRollup autoRollup; DealWithPopups(sRollupMsgWnd, sRollupMsgId, 0, 0, &popupHandlingResult); sRollupMsgId = 0; sRollupMsgWnd = nullptr; } } BOOL CALLBACK nsWindow::ClearResourcesCallback(HWND aWnd, LPARAM aMsg) { nsWindow *window = WinUtils::GetNSWindowPtr(aWnd); if (window) { window->ClearCachedResources(); } return TRUE; } void nsWindow::ClearCachedResources() { #ifdef CAIRO_HAS_D2D_SURFACE mD2DWindowSurface = nullptr; #endif if (mLayerManager && mLayerManager->GetBackendType() == LayersBackend::LAYERS_BASIC) { mLayerManager->ClearCachedResources(); } ::EnumChildWindows(mWnd, nsWindow::ClearResourcesCallback, 0); } static bool IsDifferentThreadWindow(HWND aWnd) { return ::GetCurrentThreadId() != ::GetWindowThreadProcessId(aWnd, nullptr); } // static bool nsWindow::EventIsInsideWindow(nsWindow* aWindow) { RECT r; ::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 static_cast(::PtInRect(&r, mp)); } // static bool nsWindow::GetPopupsToRollup(nsIRollupListener* aRollupListener, uint32_t* aPopupsToRollup) { // If we're dealing with menus, we probably have submenus and we don't want // to rollup some of them if the click is in a parent menu of the current // submenu. *aPopupsToRollup = UINT32_MAX; nsAutoTArray widgetChain; uint32_t sameTypeCount = aRollupListener->GetSubmenuWidgetChain(&widgetChain); for (uint32_t i = 0; i < widgetChain.Length(); ++i) { nsIWidget* widget = widgetChain[i]; if (EventIsInsideWindow(static_cast(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) { return false; } *aPopupsToRollup = sameTypeCount; break; } } return true; } // static bool nsWindow::NeedsToHandleNCActivateDelayed(HWND aWnd) { // While popup is open, popup window might be activated by other application. // At this time, we need to take back focus to the previous window but it // causes flickering its nonclient area because WM_NCACTIVATE comes before // WM_ACTIVATE and we cannot know which window will take focus at receiving // WM_NCACTIVATE. Therefore, we need a hack for preventing the flickerling. // // If non-popup window receives WM_NCACTIVATE at deactivating, default // wndproc shouldn't handle it as deactivating. Instead, at receiving // WM_ACTIVIATE after that, WM_NCACTIVATE should be sent again manually. // This returns true if the window needs to handle WM_NCACTIVATE later. nsWindow* window = WinUtils::GetNSWindowPtr(aWnd); return window && !window->IsPopup(); } // static bool nsWindow::DealWithPopups(HWND aWnd, UINT aMessage, WPARAM aWParam, LPARAM aLParam, LRESULT* aResult) { NS_ASSERTION(aResult, "Bad outResult"); // XXX Why do we use the return value of WM_MOUSEACTIVATE for all messages? *aResult = MA_NOACTIVATE; if (!::IsWindowVisible(aWnd)) { return false; } nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener(); NS_ENSURE_TRUE(rollupListener, false); nsCOMPtr popup = rollupListener->GetRollupWidget(); if (!popup) { return false; } static bool sSendingNCACTIVATE = false; static bool sPendingNCACTIVATE = false; uint32_t popupsToRollup = UINT32_MAX; nsWindow* popupWindow = static_cast(popup.get()); UINT nativeMessage = WinUtils::GetNativeMessage(aMessage); switch (nativeMessage) { case WM_LBUTTONDOWN: case WM_RBUTTONDOWN: case WM_MBUTTONDOWN: case WM_NCLBUTTONDOWN: case WM_NCRBUTTONDOWN: case WM_NCMBUTTONDOWN: if (!EventIsInsideWindow(popupWindow) && GetPopupsToRollup(rollupListener, &popupsToRollup)) { break; } return false; case WM_MOUSEWHEEL: case WM_MOUSEHWHEEL: // We need to check if the popup thinks that it should cause closing // itself when mouse wheel events are fired outside the rollup widget. if (!EventIsInsideWindow(popupWindow)) { *aResult = MA_ACTIVATE; if (rollupListener->ShouldRollupOnMouseWheelEvent() && GetPopupsToRollup(rollupListener, &popupsToRollup)) { break; } } return false; case WM_ACTIVATEAPP: break; case WM_ACTIVATE: // NOTE: Don't handle WA_INACTIVE for preventing popup taking focus // because we cannot distinguish it's caused by mouse or not. if (LOWORD(aWParam) == WA_ACTIVE && aLParam) { nsWindow* window = WinUtils::GetNSWindowPtr(aWnd); if (window && window->IsPopup()) { // Cancel notifying widget listeners of deactivating the previous // active window (see WM_KILLFOCUS case in ProcessMessage()). sJustGotDeactivate = false; // Reactivate the window later. ::PostMessageW(aWnd, MOZ_WM_REACTIVATE, aWParam, aLParam); return true; } // Don't rollup the popup when focus moves back to the parent window // from a popup because such case is caused by strange mouse drivers. nsWindow* prevWindow = WinUtils::GetNSWindowPtr(reinterpret_cast(aLParam)); if (prevWindow && prevWindow->IsPopup()) { return false; } } else if (LOWORD(aWParam) == WA_INACTIVE) { nsWindow* activeWindow = WinUtils::GetNSWindowPtr(reinterpret_cast(aLParam)); if (sPendingNCACTIVATE && NeedsToHandleNCActivateDelayed(aWnd)) { // If focus moves to non-popup widget or focusable popup, the window // needs to update its nonclient area. if (!activeWindow || !activeWindow->IsPopup()) { sSendingNCACTIVATE = true; ::SendMessageW(aWnd, WM_NCACTIVATE, false, 0); sSendingNCACTIVATE = false; } sPendingNCACTIVATE = false; } // If focus moves from/to popup, we don't need to rollup the popup // because such case is caused by strange mouse drivers. if (activeWindow) { if (activeWindow->IsPopup()) { return false; } nsWindow* deactiveWindow = WinUtils::GetNSWindowPtr(aWnd); if (deactiveWindow && deactiveWindow->IsPopup()) { return false; } } } break; case MOZ_WM_REACTIVATE: // The previous active window should take back focus. if (::IsWindow(reinterpret_cast(aLParam))) { ::SetForegroundWindow(reinterpret_cast(aLParam)); } return true; case WM_NCACTIVATE: if (!aWParam && !sSendingNCACTIVATE && NeedsToHandleNCActivateDelayed(aWnd)) { // Don't just consume WM_NCACTIVATE. It doesn't handle only the // nonclient area state change. ::DefWindowProcW(aWnd, aMessage, TRUE, aLParam); // Accept the deactivating because it's necessary to receive following // WM_ACTIVATE. *aResult = TRUE; sPendingNCACTIVATE = true; return true; } return false; case WM_MOUSEACTIVATE: if (!EventIsInsideWindow(popupWindow) && GetPopupsToRollup(rollupListener, &popupsToRollup)) { // WM_MOUSEACTIVATE may be caused by moving the mouse (e.g., X-mouse // of TweakUI is enabled. Then, check if the popup should be rolled up // with rollup listener. If not, just consume the message. if (HIWORD(aLParam) == WM_MOUSEMOVE && !rollupListener->ShouldRollupOnMouseActivate()) { return true; } // Otherwise, it should be handled by wndproc. return false; } // 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. return true; case WM_KILLFOCUS: // If focus moves to other window created in different process/thread, // e.g., a plugin window, popups should be rolled up. if (IsDifferentThreadWindow(reinterpret_cast(aWParam))) { break; } return false; case WM_MOVING: case WM_SIZING: case WM_MENUSELECT: break; default: return false; } // Only need to deal with the last rollup for left mouse down events. NS_ASSERTION(!mLastRollup, "mLastRollup is null"); bool consumeRollupEvent; if (nativeMessage == WM_LBUTTONDOWN) { POINT pt; pt.x = GET_X_LPARAM(aLParam); pt.y = GET_Y_LPARAM(aLParam); ::ClientToScreen(aWnd, &pt); nsIntPoint pos(pt.x, pt.y); consumeRollupEvent = rollupListener->Rollup(popupsToRollup, &pos, &mLastRollup); NS_IF_ADDREF(mLastRollup); } else { consumeRollupEvent = rollupListener->Rollup(popupsToRollup, nullptr, nullptr); } // Tell hook to stop processing messages sProcessHook = false; sRollupMsgId = 0; sRollupMsgWnd = nullptr; // If we are NOT supposed to be consuming events, let it go through if (consumeRollupEvent && nativeMessage != WM_RBUTTONDOWN) { *aResult = MA_ACTIVATE; return true; } return false; } /************************************************************** ************************************************************** ** ** BLOCK: Misc. utility methods and functions. ** ** General use. ** ************************************************************** **************************************************************/ // Note that the result of GetTopLevelWindow method can be different from the // result of WinUtils::GetTopLevelHWND(). 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; } } 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); } } 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; }