/* -*- 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/. */ #include "WinUtils.h" #include <knownfolders.h> #include <winioctl.h> #include "gfxPlatform.h" #include "gfxUtils.h" #include "nsWindow.h" #include "nsWindowDefs.h" #include "KeyboardLayout.h" #include "nsIDOMMouseEvent.h" #include "mozilla/ArrayUtils.h" #include "mozilla/gfx/2D.h" #include "mozilla/gfx/DataSurfaceHelpers.h" #include "mozilla/HangMonitor.h" #include "mozilla/Preferences.h" #include "mozilla/RefPtr.h" #include "mozilla/WindowsVersion.h" #include "mozilla/Unused.h" #include "nsIContentPolicy.h" #include "nsContentUtils.h" #include "mozilla/Logging.h" #include "nsString.h" #include "nsDirectoryServiceUtils.h" #include "imgIContainer.h" #include "imgITools.h" #include "nsStringStream.h" #include "nsNetUtil.h" #include "nsIOutputStream.h" #include "nsNetCID.h" #include "prtime.h" #ifdef MOZ_PLACES #include "mozIAsyncFavicons.h" #endif #include "nsIIconURI.h" #include "nsIDownloader.h" #include "nsINetUtil.h" #include "nsIChannel.h" #include "nsIObserver.h" #include "imgIEncoder.h" #include "nsIThread.h" #include "MainThreadUtils.h" #include "nsLookAndFeel.h" #include "nsUnicharUtils.h" #include "nsWindowsHelpers.h" #ifdef NS_ENABLE_TSF #include <textstor.h> #include "TSFTextStore.h" #endif // #ifdef NS_ENABLE_TSF #include <shlwapi.h> mozilla::LazyLogModule gWindowsLog("Widget"); using namespace mozilla::gfx; namespace mozilla { namespace widget { #define ENTRY(_msg) { #_msg, _msg } EventMsgInfo gAllEvents[] = { ENTRY(WM_NULL), ENTRY(WM_CREATE), ENTRY(WM_DESTROY), ENTRY(WM_MOVE), ENTRY(WM_SIZE), ENTRY(WM_ACTIVATE), ENTRY(WM_SETFOCUS), ENTRY(WM_KILLFOCUS), ENTRY(WM_ENABLE), ENTRY(WM_SETREDRAW), ENTRY(WM_SETTEXT), ENTRY(WM_GETTEXT), ENTRY(WM_GETTEXTLENGTH), ENTRY(WM_PAINT), ENTRY(WM_CLOSE), ENTRY(WM_QUERYENDSESSION), ENTRY(WM_QUIT), ENTRY(WM_QUERYOPEN), ENTRY(WM_ERASEBKGND), ENTRY(WM_SYSCOLORCHANGE), ENTRY(WM_ENDSESSION), ENTRY(WM_SHOWWINDOW), ENTRY(WM_SETTINGCHANGE), ENTRY(WM_DEVMODECHANGE), ENTRY(WM_ACTIVATEAPP), ENTRY(WM_FONTCHANGE), ENTRY(WM_TIMECHANGE), ENTRY(WM_CANCELMODE), ENTRY(WM_SETCURSOR), ENTRY(WM_MOUSEACTIVATE), ENTRY(WM_CHILDACTIVATE), ENTRY(WM_QUEUESYNC), ENTRY(WM_GETMINMAXINFO), ENTRY(WM_PAINTICON), ENTRY(WM_ICONERASEBKGND), ENTRY(WM_NEXTDLGCTL), ENTRY(WM_SPOOLERSTATUS), ENTRY(WM_DRAWITEM), ENTRY(WM_MEASUREITEM), ENTRY(WM_DELETEITEM), ENTRY(WM_VKEYTOITEM), ENTRY(WM_CHARTOITEM), ENTRY(WM_SETFONT), ENTRY(WM_GETFONT), ENTRY(WM_SETHOTKEY), ENTRY(WM_GETHOTKEY), ENTRY(WM_QUERYDRAGICON), ENTRY(WM_COMPAREITEM), ENTRY(WM_GETOBJECT), ENTRY(WM_COMPACTING), ENTRY(WM_COMMNOTIFY), ENTRY(WM_WINDOWPOSCHANGING), ENTRY(WM_WINDOWPOSCHANGED), ENTRY(WM_POWER), ENTRY(WM_COPYDATA), ENTRY(WM_CANCELJOURNAL), ENTRY(WM_NOTIFY), ENTRY(WM_INPUTLANGCHANGEREQUEST), ENTRY(WM_INPUTLANGCHANGE), ENTRY(WM_TCARD), ENTRY(WM_HELP), ENTRY(WM_USERCHANGED), ENTRY(WM_NOTIFYFORMAT), ENTRY(WM_CONTEXTMENU), ENTRY(WM_STYLECHANGING), ENTRY(WM_STYLECHANGED), ENTRY(WM_DISPLAYCHANGE), ENTRY(WM_GETICON), ENTRY(WM_SETICON), ENTRY(WM_NCCREATE), ENTRY(WM_NCDESTROY), ENTRY(WM_NCCALCSIZE), ENTRY(WM_NCHITTEST), ENTRY(WM_NCPAINT), ENTRY(WM_NCACTIVATE), ENTRY(WM_GETDLGCODE), ENTRY(WM_SYNCPAINT), ENTRY(WM_NCMOUSEMOVE), ENTRY(WM_NCLBUTTONDOWN), ENTRY(WM_NCLBUTTONUP), ENTRY(WM_NCLBUTTONDBLCLK), ENTRY(WM_NCRBUTTONDOWN), ENTRY(WM_NCRBUTTONUP), ENTRY(WM_NCRBUTTONDBLCLK), ENTRY(WM_NCMBUTTONDOWN), ENTRY(WM_NCMBUTTONUP), ENTRY(WM_NCMBUTTONDBLCLK), ENTRY(EM_GETSEL), ENTRY(EM_SETSEL), ENTRY(EM_GETRECT), ENTRY(EM_SETRECT), ENTRY(EM_SETRECTNP), ENTRY(EM_SCROLL), ENTRY(EM_LINESCROLL), ENTRY(EM_SCROLLCARET), ENTRY(EM_GETMODIFY), ENTRY(EM_SETMODIFY), ENTRY(EM_GETLINECOUNT), ENTRY(EM_LINEINDEX), ENTRY(EM_SETHANDLE), ENTRY(EM_GETHANDLE), ENTRY(EM_GETTHUMB), ENTRY(EM_LINELENGTH), ENTRY(EM_REPLACESEL), ENTRY(EM_GETLINE), ENTRY(EM_LIMITTEXT), ENTRY(EM_CANUNDO), ENTRY(EM_UNDO), ENTRY(EM_FMTLINES), ENTRY(EM_LINEFROMCHAR), ENTRY(EM_SETTABSTOPS), ENTRY(EM_SETPASSWORDCHAR), ENTRY(EM_EMPTYUNDOBUFFER), ENTRY(EM_GETFIRSTVISIBLELINE), ENTRY(EM_SETREADONLY), ENTRY(EM_SETWORDBREAKPROC), ENTRY(EM_GETWORDBREAKPROC), ENTRY(EM_GETPASSWORDCHAR), ENTRY(EM_SETMARGINS), ENTRY(EM_GETMARGINS), ENTRY(EM_GETLIMITTEXT), ENTRY(EM_POSFROMCHAR), ENTRY(EM_CHARFROMPOS), ENTRY(EM_SETIMESTATUS), ENTRY(EM_GETIMESTATUS), ENTRY(SBM_SETPOS), ENTRY(SBM_GETPOS), ENTRY(SBM_SETRANGE), ENTRY(SBM_SETRANGEREDRAW), ENTRY(SBM_GETRANGE), ENTRY(SBM_ENABLE_ARROWS), ENTRY(SBM_SETSCROLLINFO), ENTRY(SBM_GETSCROLLINFO), ENTRY(WM_KEYDOWN), ENTRY(WM_KEYUP), ENTRY(WM_CHAR), ENTRY(WM_DEADCHAR), ENTRY(WM_SYSKEYDOWN), ENTRY(WM_SYSKEYUP), ENTRY(WM_SYSCHAR), ENTRY(WM_SYSDEADCHAR), ENTRY(WM_KEYLAST), ENTRY(WM_IME_STARTCOMPOSITION), ENTRY(WM_IME_ENDCOMPOSITION), ENTRY(WM_IME_COMPOSITION), ENTRY(WM_INITDIALOG), ENTRY(WM_COMMAND), ENTRY(WM_SYSCOMMAND), ENTRY(WM_TIMER), ENTRY(WM_HSCROLL), ENTRY(WM_VSCROLL), ENTRY(WM_INITMENU), ENTRY(WM_INITMENUPOPUP), ENTRY(WM_MENUSELECT), ENTRY(WM_MENUCHAR), ENTRY(WM_ENTERIDLE), ENTRY(WM_MENURBUTTONUP), ENTRY(WM_MENUDRAG), ENTRY(WM_MENUGETOBJECT), ENTRY(WM_UNINITMENUPOPUP), ENTRY(WM_MENUCOMMAND), ENTRY(WM_CHANGEUISTATE), ENTRY(WM_UPDATEUISTATE), ENTRY(WM_CTLCOLORMSGBOX), ENTRY(WM_CTLCOLOREDIT), ENTRY(WM_CTLCOLORLISTBOX), ENTRY(WM_CTLCOLORBTN), ENTRY(WM_CTLCOLORDLG), ENTRY(WM_CTLCOLORSCROLLBAR), ENTRY(WM_CTLCOLORSTATIC), ENTRY(CB_GETEDITSEL), ENTRY(CB_LIMITTEXT), ENTRY(CB_SETEDITSEL), ENTRY(CB_ADDSTRING), ENTRY(CB_DELETESTRING), ENTRY(CB_DIR), ENTRY(CB_GETCOUNT), ENTRY(CB_GETCURSEL), ENTRY(CB_GETLBTEXT), ENTRY(CB_GETLBTEXTLEN), ENTRY(CB_INSERTSTRING), ENTRY(CB_RESETCONTENT), ENTRY(CB_FINDSTRING), ENTRY(CB_SELECTSTRING), ENTRY(CB_SETCURSEL), ENTRY(CB_SHOWDROPDOWN), ENTRY(CB_GETITEMDATA), ENTRY(CB_SETITEMDATA), ENTRY(CB_GETDROPPEDCONTROLRECT), ENTRY(CB_SETITEMHEIGHT), ENTRY(CB_GETITEMHEIGHT), ENTRY(CB_SETEXTENDEDUI), ENTRY(CB_GETEXTENDEDUI), ENTRY(CB_GETDROPPEDSTATE), ENTRY(CB_FINDSTRINGEXACT), ENTRY(CB_SETLOCALE), ENTRY(CB_GETLOCALE), ENTRY(CB_GETTOPINDEX), ENTRY(CB_SETTOPINDEX), ENTRY(CB_GETHORIZONTALEXTENT), ENTRY(CB_SETHORIZONTALEXTENT), ENTRY(CB_GETDROPPEDWIDTH), ENTRY(CB_SETDROPPEDWIDTH), ENTRY(CB_INITSTORAGE), ENTRY(CB_MSGMAX), ENTRY(LB_ADDSTRING), ENTRY(LB_INSERTSTRING), ENTRY(LB_DELETESTRING), ENTRY(LB_SELITEMRANGEEX), ENTRY(LB_RESETCONTENT), ENTRY(LB_SETSEL), ENTRY(LB_SETCURSEL), ENTRY(LB_GETSEL), ENTRY(LB_GETCURSEL), ENTRY(LB_GETTEXT), ENTRY(LB_GETTEXTLEN), ENTRY(LB_GETCOUNT), ENTRY(LB_SELECTSTRING), ENTRY(LB_DIR), ENTRY(LB_GETTOPINDEX), ENTRY(LB_FINDSTRING), ENTRY(LB_GETSELCOUNT), ENTRY(LB_GETSELITEMS), ENTRY(LB_SETTABSTOPS), ENTRY(LB_GETHORIZONTALEXTENT), ENTRY(LB_SETHORIZONTALEXTENT), ENTRY(LB_SETCOLUMNWIDTH), ENTRY(LB_ADDFILE), ENTRY(LB_SETTOPINDEX), ENTRY(LB_GETITEMRECT), ENTRY(LB_GETITEMDATA), ENTRY(LB_SETITEMDATA), ENTRY(LB_SELITEMRANGE), ENTRY(LB_SETANCHORINDEX), ENTRY(LB_GETANCHORINDEX), ENTRY(LB_SETCARETINDEX), ENTRY(LB_GETCARETINDEX), ENTRY(LB_SETITEMHEIGHT), ENTRY(LB_GETITEMHEIGHT), ENTRY(LB_FINDSTRINGEXACT), ENTRY(LB_SETLOCALE), ENTRY(LB_GETLOCALE), ENTRY(LB_SETCOUNT), ENTRY(LB_INITSTORAGE), ENTRY(LB_ITEMFROMPOINT), ENTRY(LB_MSGMAX), ENTRY(WM_MOUSEMOVE), ENTRY(WM_LBUTTONDOWN), ENTRY(WM_LBUTTONUP), ENTRY(WM_LBUTTONDBLCLK), ENTRY(WM_RBUTTONDOWN), ENTRY(WM_RBUTTONUP), ENTRY(WM_RBUTTONDBLCLK), ENTRY(WM_MBUTTONDOWN), ENTRY(WM_MBUTTONUP), ENTRY(WM_MBUTTONDBLCLK), ENTRY(WM_MOUSEWHEEL), ENTRY(WM_MOUSEHWHEEL), ENTRY(WM_PARENTNOTIFY), ENTRY(WM_ENTERMENULOOP), ENTRY(WM_EXITMENULOOP), ENTRY(WM_NEXTMENU), ENTRY(WM_SIZING), ENTRY(WM_CAPTURECHANGED), ENTRY(WM_MOVING), ENTRY(WM_POWERBROADCAST), ENTRY(WM_DEVICECHANGE), ENTRY(WM_MDICREATE), ENTRY(WM_MDIDESTROY), ENTRY(WM_MDIACTIVATE), ENTRY(WM_MDIRESTORE), ENTRY(WM_MDINEXT), ENTRY(WM_MDIMAXIMIZE), ENTRY(WM_MDITILE), ENTRY(WM_MDICASCADE), ENTRY(WM_MDIICONARRANGE), ENTRY(WM_MDIGETACTIVE), ENTRY(WM_MDISETMENU), ENTRY(WM_ENTERSIZEMOVE), ENTRY(WM_EXITSIZEMOVE), ENTRY(WM_DROPFILES), ENTRY(WM_MDIREFRESHMENU), ENTRY(WM_IME_SETCONTEXT), ENTRY(WM_IME_NOTIFY), ENTRY(WM_IME_CONTROL), ENTRY(WM_IME_COMPOSITIONFULL), ENTRY(WM_IME_SELECT), ENTRY(WM_IME_CHAR), ENTRY(WM_IME_REQUEST), ENTRY(WM_IME_KEYDOWN), ENTRY(WM_IME_KEYUP), ENTRY(WM_NCMOUSEHOVER), ENTRY(WM_MOUSEHOVER), ENTRY(WM_MOUSELEAVE), ENTRY(WM_CUT), ENTRY(WM_COPY), ENTRY(WM_PASTE), ENTRY(WM_CLEAR), ENTRY(WM_UNDO), ENTRY(WM_RENDERFORMAT), ENTRY(WM_RENDERALLFORMATS), ENTRY(WM_DESTROYCLIPBOARD), ENTRY(WM_DRAWCLIPBOARD), ENTRY(WM_PAINTCLIPBOARD), ENTRY(WM_VSCROLLCLIPBOARD), ENTRY(WM_SIZECLIPBOARD), ENTRY(WM_ASKCBFORMATNAME), ENTRY(WM_CHANGECBCHAIN), ENTRY(WM_HSCROLLCLIPBOARD), ENTRY(WM_QUERYNEWPALETTE), ENTRY(WM_PALETTEISCHANGING), ENTRY(WM_PALETTECHANGED), ENTRY(WM_HOTKEY), ENTRY(WM_PRINT), ENTRY(WM_PRINTCLIENT), ENTRY(WM_THEMECHANGED), ENTRY(WM_HANDHELDFIRST), ENTRY(WM_HANDHELDLAST), ENTRY(WM_AFXFIRST), ENTRY(WM_AFXLAST), ENTRY(WM_PENWINFIRST), ENTRY(WM_PENWINLAST), ENTRY(WM_APP), ENTRY(WM_DWMCOMPOSITIONCHANGED), ENTRY(WM_DWMNCRENDERINGCHANGED), ENTRY(WM_DWMCOLORIZATIONCOLORCHANGED), ENTRY(WM_DWMWINDOWMAXIMIZEDCHANGE), ENTRY(WM_DWMSENDICONICTHUMBNAIL), ENTRY(WM_DWMSENDICONICLIVEPREVIEWBITMAP), ENTRY(WM_TABLET_QUERYSYSTEMGESTURESTATUS), ENTRY(WM_GESTURE), ENTRY(WM_GESTURENOTIFY), ENTRY(WM_GETTITLEBARINFOEX), {nullptr, 0x0} }; #undef ENTRY #ifdef MOZ_PLACES NS_IMPL_ISUPPORTS(myDownloadObserver, nsIDownloadObserver) NS_IMPL_ISUPPORTS(AsyncFaviconDataReady, nsIFaviconDataCallback) #endif NS_IMPL_ISUPPORTS(AsyncEncodeAndWriteIcon, nsIRunnable) NS_IMPL_ISUPPORTS(AsyncDeleteIconFromDisk, nsIRunnable) NS_IMPL_ISUPPORTS(AsyncDeleteAllFaviconsFromDisk, nsIRunnable) const char FaviconHelper::kJumpListCacheDir[] = "jumpListCache"; const char FaviconHelper::kShortcutCacheDir[] = "shortcutCache"; // apis available on vista and up. WinUtils::SHCreateItemFromParsingNamePtr WinUtils::sCreateItemFromParsingName = nullptr; WinUtils::SHGetKnownFolderPathPtr WinUtils::sGetKnownFolderPath = nullptr; // We just leak these DLL HMODULEs. There's no point in calling FreeLibrary // on them during shutdown anyway. static const wchar_t kShellLibraryName[] = L"shell32.dll"; static HMODULE sShellDll = nullptr; static const wchar_t kDwmLibraryName[] = L"dwmapi.dll"; static HMODULE sDwmDll = nullptr; WinUtils::DwmExtendFrameIntoClientAreaProc WinUtils::dwmExtendFrameIntoClientAreaPtr = nullptr; WinUtils::DwmIsCompositionEnabledProc WinUtils::dwmIsCompositionEnabledPtr = nullptr; WinUtils::DwmSetIconicThumbnailProc WinUtils::dwmSetIconicThumbnailPtr = nullptr; WinUtils::DwmSetIconicLivePreviewBitmapProc WinUtils::dwmSetIconicLivePreviewBitmapPtr = nullptr; WinUtils::DwmGetWindowAttributeProc WinUtils::dwmGetWindowAttributePtr = nullptr; WinUtils::DwmSetWindowAttributeProc WinUtils::dwmSetWindowAttributePtr = nullptr; WinUtils::DwmInvalidateIconicBitmapsProc WinUtils::dwmInvalidateIconicBitmapsPtr = nullptr; WinUtils::DwmDefWindowProcProc WinUtils::dwmDwmDefWindowProcPtr = nullptr; WinUtils::DwmGetCompositionTimingInfoProc WinUtils::dwmGetCompositionTimingInfoPtr = nullptr; WinUtils::DwmFlushProc WinUtils::dwmFlushProcPtr = nullptr; // Prefix for path used by NT calls. const wchar_t kNTPrefix[] = L"\\??\\"; const size_t kNTPrefixLen = ArrayLength(kNTPrefix) - 1; struct CoTaskMemFreePolicy { void operator()(void* aPtr) { ::CoTaskMemFree(aPtr); } }; SetThreadDpiAwarenessContextProc WinUtils::sSetThreadDpiAwarenessContext = NULL; EnableNonClientDpiScalingProc WinUtils::sEnableNonClientDpiScaling = NULL; #ifdef ACCESSIBILITY typedef NTSTATUS (NTAPI* NtTestAlertPtr)(VOID); static NtTestAlertPtr sNtTestAlert = nullptr; #endif /* static */ void WinUtils::Initialize() { if (!sDwmDll) { sDwmDll = ::LoadLibraryW(kDwmLibraryName); if (sDwmDll) { dwmExtendFrameIntoClientAreaPtr = (DwmExtendFrameIntoClientAreaProc)::GetProcAddress(sDwmDll, "DwmExtendFrameIntoClientArea"); dwmIsCompositionEnabledPtr = (DwmIsCompositionEnabledProc)::GetProcAddress(sDwmDll, "DwmIsCompositionEnabled"); dwmSetIconicThumbnailPtr = (DwmSetIconicThumbnailProc)::GetProcAddress(sDwmDll, "DwmSetIconicThumbnail"); dwmSetIconicLivePreviewBitmapPtr = (DwmSetIconicLivePreviewBitmapProc)::GetProcAddress(sDwmDll, "DwmSetIconicLivePreviewBitmap"); dwmGetWindowAttributePtr = (DwmGetWindowAttributeProc)::GetProcAddress(sDwmDll, "DwmGetWindowAttribute"); dwmSetWindowAttributePtr = (DwmSetWindowAttributeProc)::GetProcAddress(sDwmDll, "DwmSetWindowAttribute"); dwmInvalidateIconicBitmapsPtr = (DwmInvalidateIconicBitmapsProc)::GetProcAddress(sDwmDll, "DwmInvalidateIconicBitmaps"); dwmDwmDefWindowProcPtr = (DwmDefWindowProcProc)::GetProcAddress(sDwmDll, "DwmDefWindowProc"); dwmGetCompositionTimingInfoPtr = (DwmGetCompositionTimingInfoProc)::GetProcAddress(sDwmDll, "DwmGetCompositionTimingInfo"); dwmFlushProcPtr = (DwmFlushProc)::GetProcAddress(sDwmDll, "DwmFlush"); } } if (IsWin10OrLater()) { HMODULE user32Dll = ::GetModuleHandleW(L"user32"); if (user32Dll) { sEnableNonClientDpiScaling = (EnableNonClientDpiScalingProc) ::GetProcAddress(user32Dll, "EnableNonClientDpiScaling"); sSetThreadDpiAwarenessContext = (SetThreadDpiAwarenessContextProc) ::GetProcAddress(user32Dll, "SetThreadDpiAwarenessContext"); } } #ifdef ACCESSIBILITY sNtTestAlert = reinterpret_cast<NtTestAlertPtr>( ::GetProcAddress(::GetModuleHandleW(L"ntdll.dll"), "NtTestAlert")); MOZ_ASSERT(sNtTestAlert); #endif } // static LRESULT WINAPI WinUtils::NonClientDpiScalingDefWindowProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) { if (msg == WM_NCCREATE && sEnableNonClientDpiScaling) { sEnableNonClientDpiScaling(hWnd); } return ::DefWindowProcW(hWnd, msg, wParam, lParam); } // static void WinUtils::LogW(const wchar_t *fmt, ...) { va_list args = nullptr; if(!lstrlenW(fmt)) { return; } va_start(args, fmt); int buflen = _vscwprintf(fmt, args); wchar_t* buffer = new wchar_t[buflen+1]; if (!buffer) { va_end(args); return; } vswprintf(buffer, buflen, fmt, args); va_end(args); // MSVC, including remote debug sessions OutputDebugStringW(buffer); OutputDebugStringW(L"\n"); int len = WideCharToMultiByte(CP_ACP, 0, buffer, -1, nullptr, 0, nullptr, nullptr); if (len) { char* utf8 = new char[len]; if (WideCharToMultiByte(CP_ACP, 0, buffer, -1, utf8, len, nullptr, nullptr) > 0) { // desktop console printf("%s\n", utf8); NS_ASSERTION(gWindowsLog, "Called WinUtils Log() but Widget " "log module doesn't exist!"); MOZ_LOG(gWindowsLog, LogLevel::Error, (utf8)); } delete[] utf8; } delete[] buffer; } // static void WinUtils::Log(const char *fmt, ...) { va_list args = nullptr; if(!strlen(fmt)) { return; } va_start(args, fmt); int buflen = _vscprintf(fmt, args); char* buffer = new char[buflen+1]; if (!buffer) { va_end(args); return; } vsprintf(buffer, fmt, args); va_end(args); // MSVC, including remote debug sessions OutputDebugStringA(buffer); OutputDebugStringW(L"\n"); // desktop console printf("%s\n", buffer); NS_ASSERTION(gWindowsLog, "Called WinUtils Log() but Widget " "log module doesn't exist!"); MOZ_LOG(gWindowsLog, LogLevel::Error, (buffer)); delete[] buffer; } // static double WinUtils::SystemScaleFactor() { // The result of GetDeviceCaps won't change dynamically, as it predates // per-monitor DPI and support for on-the-fly resolution changes. // Therefore, we only need to look it up once. static double systemScale = 0; if (systemScale == 0) { HDC screenDC = GetDC(nullptr); systemScale = GetDeviceCaps(screenDC, LOGPIXELSY) / 96.0; ReleaseDC(nullptr, screenDC); if (systemScale == 0) { // Bug 1012487 - This can occur when the Screen DC is used off the // main thread on windows. For now just assume a 100% DPI for this // drawing call. // XXX - fixme! return 1.0; } } return systemScale; } #if WINVER < 0x603 typedef enum { MDT_EFFECTIVE_DPI = 0, MDT_ANGULAR_DPI = 1, MDT_RAW_DPI = 2, MDT_DEFAULT = MDT_EFFECTIVE_DPI } MONITOR_DPI_TYPE; typedef enum { PROCESS_DPI_UNAWARE = 0, PROCESS_SYSTEM_DPI_AWARE = 1, PROCESS_PER_MONITOR_DPI_AWARE = 2 } PROCESS_DPI_AWARENESS; #endif typedef HRESULT (WINAPI *GETDPIFORMONITORPROC)(HMONITOR, MONITOR_DPI_TYPE, UINT*, UINT*); typedef HRESULT (WINAPI *GETPROCESSDPIAWARENESSPROC)(HANDLE, PROCESS_DPI_AWARENESS*); GETDPIFORMONITORPROC sGetDpiForMonitor; GETPROCESSDPIAWARENESSPROC sGetProcessDpiAwareness; static bool SlowIsPerMonitorDPIAware() { // Intentionally leak the handle. HMODULE shcore = LoadLibraryEx(L"shcore", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32); if (shcore) { sGetDpiForMonitor = (GETDPIFORMONITORPROC) GetProcAddress(shcore, "GetDpiForMonitor"); sGetProcessDpiAwareness = (GETPROCESSDPIAWARENESSPROC) GetProcAddress(shcore, "GetProcessDpiAwareness"); } PROCESS_DPI_AWARENESS dpiAwareness; return sGetDpiForMonitor && sGetProcessDpiAwareness && SUCCEEDED(sGetProcessDpiAwareness(GetCurrentProcess(), &dpiAwareness)) && dpiAwareness == PROCESS_PER_MONITOR_DPI_AWARE; } /* static */ bool WinUtils::IsPerMonitorDPIAware() { static bool perMonitorDPIAware = SlowIsPerMonitorDPIAware(); return perMonitorDPIAware; } /* static */ double WinUtils::LogToPhysFactor(HMONITOR aMonitor) { if (IsPerMonitorDPIAware()) { UINT dpiX, dpiY = 96; sGetDpiForMonitor(aMonitor ? aMonitor : GetPrimaryMonitor(), MDT_EFFECTIVE_DPI, &dpiX, &dpiY); return dpiY / 96.0; } return SystemScaleFactor(); } /* static */ int32_t WinUtils::LogToPhys(HMONITOR aMonitor, double aValue) { return int32_t(NS_round(aValue * LogToPhysFactor(aMonitor))); } /* static */ HMONITOR WinUtils::GetPrimaryMonitor() { const POINT pt = { 0, 0 }; return ::MonitorFromPoint(pt, MONITOR_DEFAULTTOPRIMARY); } /* static */ HMONITOR WinUtils::MonitorFromRect(const gfx::Rect& rect) { // convert coordinates from desktop to device pixels for MonitorFromRect double dpiScale = IsPerMonitorDPIAware() ? 1.0 : LogToPhysFactor(GetPrimaryMonitor()); RECT globalWindowBounds = { NSToIntRound(dpiScale * rect.x), NSToIntRound(dpiScale * rect.y), NSToIntRound(dpiScale * (rect.x + rect.width)), NSToIntRound(dpiScale * (rect.y + rect.height)) }; return ::MonitorFromRect(&globalWindowBounds, MONITOR_DEFAULTTONEAREST); } #ifdef ACCESSIBILITY #ifndef STATUS_SUCCESS #define STATUS_SUCCESS ((NTSTATUS)0x00000000L) #endif static Atomic<bool> sAPCPending; /* static */ void WinUtils::SetAPCPending() { sAPCPending = true; } #endif // ACCESSIBILITY /* static */ bool WinUtils::PeekMessage(LPMSG aMsg, HWND aWnd, UINT aFirstMessage, UINT aLastMessage, UINT aOption) { #ifdef ACCESSIBILITY if (NS_IsMainThread() && sAPCPending.exchange(false)) { while (sNtTestAlert() != STATUS_SUCCESS) ; } #endif #ifdef NS_ENABLE_TSF RefPtr<ITfMessagePump> msgPump = TSFTextStore::GetMessagePump(); if (msgPump) { BOOL ret = FALSE; HRESULT hr = msgPump->PeekMessageW(aMsg, aWnd, aFirstMessage, aLastMessage, aOption, &ret); NS_ENSURE_TRUE(SUCCEEDED(hr), false); return ret; } #endif // #ifdef NS_ENABLE_TSF return ::PeekMessageW(aMsg, aWnd, aFirstMessage, aLastMessage, aOption); } /* static */ bool WinUtils::GetMessage(LPMSG aMsg, HWND aWnd, UINT aFirstMessage, UINT aLastMessage) { #ifdef NS_ENABLE_TSF RefPtr<ITfMessagePump> msgPump = TSFTextStore::GetMessagePump(); if (msgPump) { BOOL ret = FALSE; HRESULT hr = msgPump->GetMessageW(aMsg, aWnd, aFirstMessage, aLastMessage, &ret); NS_ENSURE_TRUE(SUCCEEDED(hr), false); return ret; } #endif // #ifdef NS_ENABLE_TSF return ::GetMessageW(aMsg, aWnd, aFirstMessage, aLastMessage); } #if defined(ACCESSIBILITY) static DWORD GetWaitFlags() { DWORD result = MWMO_INPUTAVAILABLE; if (XRE_IsContentProcess()) { result |= MWMO_ALERTABLE; } return result; } #endif /* static */ void WinUtils::WaitForMessage(DWORD aTimeoutMs) { #if defined(ACCESSIBILITY) static const DWORD waitFlags = GetWaitFlags(); #else const DWORD waitFlags = MWMO_INPUTAVAILABLE; #endif const DWORD waitStart = ::GetTickCount(); DWORD elapsed = 0; while (true) { if (aTimeoutMs != INFINITE) { elapsed = ::GetTickCount() - waitStart; } if (elapsed >= aTimeoutMs) { break; } DWORD result = ::MsgWaitForMultipleObjectsEx(0, NULL, aTimeoutMs - elapsed, MOZ_QS_ALLEVENT, waitFlags); NS_WARNING_ASSERTION(result != WAIT_FAILED, "Wait failed"); if (result == WAIT_TIMEOUT) { break; } #if defined(ACCESSIBILITY) if (result == WAIT_IO_COMPLETION) { if (NS_IsMainThread()) { if (sAPCPending.exchange(false)) { // Clear out any pending APCs while (sNtTestAlert() != STATUS_SUCCESS) ; } // We executed an APC that would have woken up the hang monitor. Since // there are no more APCs pending and we are now going to sleep again, // we should notify the hang monitor. mozilla::HangMonitor::Suspend(); } continue; } #endif // defined(ACCESSIBILITY) // Sent messages (via SendMessage and friends) are processed differently // than queued messages (via PostMessage); the destination window procedure // of the sent message is called during (Get|Peek)Message. Since PeekMessage // does not tell us whether it processed any sent messages, we need to query // this ahead of time. bool haveSentMessagesPending = (HIWORD(::GetQueueStatus(QS_SENDMESSAGE)) & QS_SENDMESSAGE) != 0; MSG msg = {0}; if (haveSentMessagesPending || ::PeekMessageW(&msg, nullptr, 0, 0, PM_NOREMOVE)) { break; } // The message is intended for another thread that has been synchronized // with our input queue; yield to give other threads an opportunity to // process the message. This should prevent busy waiting if resumed due // to another thread's message. ::SwitchToThread(); } } /* static */ bool WinUtils::GetRegistryKey(HKEY aRoot, char16ptr_t aKeyName, char16ptr_t aValueName, wchar_t* aBuffer, DWORD aBufferLength) { NS_PRECONDITION(aKeyName, "The key name is NULL"); HKEY key; LONG result = ::RegOpenKeyExW(aRoot, aKeyName, 0, KEY_READ | KEY_WOW64_32KEY, &key); if (result != ERROR_SUCCESS) { result = ::RegOpenKeyExW(aRoot, aKeyName, 0, KEY_READ | KEY_WOW64_64KEY, &key); if (result != ERROR_SUCCESS) { return false; } } DWORD type; result = ::RegQueryValueExW(key, aValueName, nullptr, &type, (BYTE*) aBuffer, &aBufferLength); ::RegCloseKey(key); if (result != ERROR_SUCCESS || (type != REG_SZ && type != REG_EXPAND_SZ)) { return false; } if (aBuffer) { aBuffer[aBufferLength / sizeof(*aBuffer) - 1] = 0; } return true; } /* static */ bool WinUtils::HasRegistryKey(HKEY aRoot, char16ptr_t aKeyName) { MOZ_ASSERT(aRoot, "aRoot must not be NULL"); MOZ_ASSERT(aKeyName, "aKeyName must not be NULL"); HKEY key; LONG result = ::RegOpenKeyExW(aRoot, aKeyName, 0, KEY_READ | KEY_WOW64_32KEY, &key); if (result != ERROR_SUCCESS) { result = ::RegOpenKeyExW(aRoot, aKeyName, 0, KEY_READ | KEY_WOW64_64KEY, &key); if (result != ERROR_SUCCESS) { return false; } } ::RegCloseKey(key); return true; } /* static */ HWND WinUtils::GetTopLevelHWND(HWND aWnd, bool aStopIfNotChild, bool aStopIfNotPopup) { HWND curWnd = aWnd; HWND topWnd = nullptr; while (curWnd) { topWnd = curWnd; if (aStopIfNotChild) { DWORD_PTR style = ::GetWindowLongPtrW(curWnd, GWL_STYLE); VERIFY_WINDOW_STYLE(style); if (!(style & WS_CHILD)) // first top-level window break; } HWND upWnd = ::GetParent(curWnd); // Parent or owner (if has no parent) // GetParent will only return the owner if the passed in window // has the WS_POPUP style. if (!upWnd && !aStopIfNotPopup) { upWnd = ::GetWindow(curWnd, GW_OWNER); } curWnd = upWnd; } return topWnd; } static const wchar_t* GetNSWindowPropName() { static wchar_t sPropName[40] = L""; if (!*sPropName) { _snwprintf(sPropName, 39, L"MozillansIWidgetPtr%u", ::GetCurrentProcessId()); sPropName[39] = '\0'; } return sPropName; } /* static */ bool WinUtils::SetNSWindowBasePtr(HWND aWnd, nsWindowBase* aWidget) { if (!aWidget) { ::RemovePropW(aWnd, GetNSWindowPropName()); return true; } return ::SetPropW(aWnd, GetNSWindowPropName(), (HANDLE)aWidget); } /* static */ nsWindowBase* WinUtils::GetNSWindowBasePtr(HWND aWnd) { return static_cast<nsWindowBase*>(::GetPropW(aWnd, GetNSWindowPropName())); } /* static */ nsWindow* WinUtils::GetNSWindowPtr(HWND aWnd) { return static_cast<nsWindow*>(::GetPropW(aWnd, GetNSWindowPropName())); } static BOOL CALLBACK AddMonitor(HMONITOR, HDC, LPRECT, LPARAM aParam) { (*(int32_t*)aParam)++; return TRUE; } /* static */ int32_t WinUtils::GetMonitorCount() { int32_t monitorCount = 0; EnumDisplayMonitors(nullptr, nullptr, AddMonitor, (LPARAM)&monitorCount); return monitorCount; } /* static */ bool WinUtils::IsOurProcessWindow(HWND aWnd) { if (!aWnd) { return false; } DWORD processId = 0; ::GetWindowThreadProcessId(aWnd, &processId); return (processId == ::GetCurrentProcessId()); } /* static */ HWND WinUtils::FindOurProcessWindow(HWND aWnd) { for (HWND wnd = ::GetParent(aWnd); wnd; wnd = ::GetParent(wnd)) { if (IsOurProcessWindow(wnd)) { return wnd; } } return nullptr; } static bool IsPointInWindow(HWND aWnd, const POINT& aPointInScreen) { RECT bounds; if (!::GetWindowRect(aWnd, &bounds)) { return false; } return (aPointInScreen.x >= bounds.left && aPointInScreen.x < bounds.right && aPointInScreen.y >= bounds.top && aPointInScreen.y < bounds.bottom); } /** * FindTopmostWindowAtPoint() returns the topmost child window (topmost means * forground in this context) of aWnd. */ static HWND FindTopmostWindowAtPoint(HWND aWnd, const POINT& aPointInScreen) { if (!::IsWindowVisible(aWnd) || !IsPointInWindow(aWnd, aPointInScreen)) { return nullptr; } HWND childWnd = ::GetTopWindow(aWnd); while (childWnd) { HWND topmostWnd = FindTopmostWindowAtPoint(childWnd, aPointInScreen); if (topmostWnd) { return topmostWnd; } childWnd = ::GetNextWindow(childWnd, GW_HWNDNEXT); } return aWnd; } struct FindOurWindowAtPointInfo { POINT mInPointInScreen; HWND mOutWnd; }; static BOOL CALLBACK FindOurWindowAtPointCallback(HWND aWnd, LPARAM aLPARAM) { if (!WinUtils::IsOurProcessWindow(aWnd)) { // This isn't one of our top-level windows; continue enumerating. return TRUE; } // Get the top-most child window under the point. If there's no child // window, and the point is within the top-level window, then the top-level // window will be returned. (This is the usual case. A child window // would be returned for plugins.) FindOurWindowAtPointInfo* info = reinterpret_cast<FindOurWindowAtPointInfo*>(aLPARAM); HWND childWnd = FindTopmostWindowAtPoint(aWnd, info->mInPointInScreen); if (!childWnd) { // This window doesn't contain the point; continue enumerating. return TRUE; } // Return the HWND and stop enumerating. info->mOutWnd = childWnd; return FALSE; } /* static */ HWND WinUtils::FindOurWindowAtPoint(const POINT& aPointInScreen) { FindOurWindowAtPointInfo info; info.mInPointInScreen = aPointInScreen; info.mOutWnd = nullptr; // This will enumerate all top-level windows in order from top to bottom. EnumWindows(FindOurWindowAtPointCallback, reinterpret_cast<LPARAM>(&info)); return info.mOutWnd; } /* static */ UINT WinUtils::GetInternalMessage(UINT aNativeMessage) { switch (aNativeMessage) { case WM_MOUSEWHEEL: return MOZ_WM_MOUSEVWHEEL; case WM_MOUSEHWHEEL: return MOZ_WM_MOUSEHWHEEL; case WM_VSCROLL: return MOZ_WM_VSCROLL; case WM_HSCROLL: return MOZ_WM_HSCROLL; default: return aNativeMessage; } } /* static */ UINT WinUtils::GetNativeMessage(UINT aInternalMessage) { switch (aInternalMessage) { case MOZ_WM_MOUSEVWHEEL: return WM_MOUSEWHEEL; case MOZ_WM_MOUSEHWHEEL: return WM_MOUSEHWHEEL; case MOZ_WM_VSCROLL: return WM_VSCROLL; case MOZ_WM_HSCROLL: return WM_HSCROLL; default: return aInternalMessage; } } /* static */ uint16_t WinUtils::GetMouseInputSource() { int32_t inputSource = nsIDOMMouseEvent::MOZ_SOURCE_MOUSE; LPARAM lParamExtraInfo = ::GetMessageExtraInfo(); if ((lParamExtraInfo & TABLET_INK_SIGNATURE) == TABLET_INK_CHECK) { inputSource = (lParamExtraInfo & TABLET_INK_TOUCH) ? nsIDOMMouseEvent::MOZ_SOURCE_TOUCH : nsIDOMMouseEvent::MOZ_SOURCE_PEN; } return static_cast<uint16_t>(inputSource); } /* static */ uint16_t WinUtils::GetMousePointerID() { LPARAM lParamExtraInfo = ::GetMessageExtraInfo(); return lParamExtraInfo & TABLET_INK_ID_MASK; } /* static */ bool WinUtils::GetIsMouseFromTouch(EventMessage aEventMessage) { const uint32_t MOZ_T_I_SIGNATURE = TABLET_INK_TOUCH | TABLET_INK_SIGNATURE; const uint32_t MOZ_T_I_CHECK_TCH = TABLET_INK_TOUCH | TABLET_INK_CHECK; return ((aEventMessage == eMouseMove || aEventMessage == eMouseDown || aEventMessage == eMouseUp || aEventMessage == eMouseAuxClick || aEventMessage == eMouseDoubleClick) && (GetMessageExtraInfo() & MOZ_T_I_SIGNATURE) == MOZ_T_I_CHECK_TCH); } /* static */ MSG WinUtils::InitMSG(UINT aMessage, WPARAM wParam, LPARAM lParam, HWND aWnd) { MSG msg; msg.message = aMessage; msg.wParam = wParam; msg.lParam = lParam; msg.hwnd = aWnd; return msg; } /* static */ HRESULT WinUtils::SHCreateItemFromParsingName(PCWSTR pszPath, IBindCtx *pbc, REFIID riid, void **ppv) { if (sCreateItemFromParsingName) { return sCreateItemFromParsingName(pszPath, pbc, riid, ppv); } if (!sShellDll) { sShellDll = ::LoadLibraryW(kShellLibraryName); if (!sShellDll) { return false; } } sCreateItemFromParsingName = (SHCreateItemFromParsingNamePtr) GetProcAddress(sShellDll, "SHCreateItemFromParsingName"); if (!sCreateItemFromParsingName) return E_FAIL; return sCreateItemFromParsingName(pszPath, pbc, riid, ppv); } /* static */ HRESULT WinUtils::SHGetKnownFolderPath(REFKNOWNFOLDERID rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath) { if (sGetKnownFolderPath) { return sGetKnownFolderPath(rfid, dwFlags, hToken, ppszPath); } if (!sShellDll) { sShellDll = ::LoadLibraryW(kShellLibraryName); if (!sShellDll) { return false; } } sGetKnownFolderPath = (SHGetKnownFolderPathPtr) GetProcAddress(sShellDll, "SHGetKnownFolderPath"); if (!sGetKnownFolderPath) return E_FAIL; return sGetKnownFolderPath(rfid, dwFlags, hToken, ppszPath); } static BOOL WINAPI EnumFirstChild(HWND hwnd, LPARAM lParam) { *((HWND*)lParam) = hwnd; return FALSE; } /* static */ void WinUtils::InvalidatePluginAsWorkaround(nsIWidget* aWidget, const LayoutDeviceIntRect& aRect) { aWidget->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)aWidget->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); } } #ifdef MOZ_PLACES /************************************************************************ * Constructs as AsyncFaviconDataReady Object * @param aIOThread : the thread which performs the action * @param aURLShortcut : Differentiates between (false)Jumplistcache and (true)Shortcutcache ************************************************************************/ AsyncFaviconDataReady::AsyncFaviconDataReady(nsIURI *aNewURI, nsCOMPtr<nsIThread> &aIOThread, const bool aURLShortcut): mNewURI(aNewURI), mIOThread(aIOThread), mURLShortcut(aURLShortcut) { } NS_IMETHODIMP myDownloadObserver::OnDownloadComplete(nsIDownloader *downloader, nsIRequest *request, nsISupports *ctxt, nsresult status, nsIFile *result) { return NS_OK; } nsresult AsyncFaviconDataReady::OnFaviconDataNotAvailable(void) { if (!mURLShortcut) { return NS_OK; } nsCOMPtr<nsIFile> icoFile; nsresult rv = FaviconHelper::GetOutputIconPath(mNewURI, icoFile, mURLShortcut); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsIURI> mozIconURI; rv = NS_NewURI(getter_AddRefs(mozIconURI), "moz-icon://.html?size=32"); if (NS_FAILED(rv)) { return rv; } nsCOMPtr<nsIChannel> channel; rv = NS_NewChannel(getter_AddRefs(channel), mozIconURI, nsContentUtils::GetSystemPrincipal(), nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL, nsIContentPolicy::TYPE_INTERNAL_IMAGE); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsIDownloadObserver> downloadObserver = new myDownloadObserver; nsCOMPtr<nsIStreamListener> listener; rv = NS_NewDownloader(getter_AddRefs(listener), downloadObserver, icoFile); NS_ENSURE_SUCCESS(rv, rv); return channel->AsyncOpen2(listener); } NS_IMETHODIMP AsyncFaviconDataReady::OnComplete(nsIURI *aFaviconURI, uint32_t aDataLen, const uint8_t *aData, const nsACString &aMimeType) { if (!aDataLen || !aData) { if (mURLShortcut) { OnFaviconDataNotAvailable(); } return NS_OK; } nsCOMPtr<nsIFile> icoFile; nsresult rv = FaviconHelper::GetOutputIconPath(mNewURI, icoFile, mURLShortcut); NS_ENSURE_SUCCESS(rv, rv); nsAutoString path; rv = icoFile->GetPath(path); NS_ENSURE_SUCCESS(rv, rv); // Convert the obtained favicon data to an input stream nsCOMPtr<nsIInputStream> stream; rv = NS_NewByteInputStream(getter_AddRefs(stream), reinterpret_cast<const char*>(aData), aDataLen, NS_ASSIGNMENT_DEPEND); NS_ENSURE_SUCCESS(rv, rv); // Decode the image from the format it was returned to us in (probably PNG) nsCOMPtr<imgIContainer> container; nsCOMPtr<imgITools> imgtool = do_CreateInstance("@mozilla.org/image/tools;1"); rv = imgtool->DecodeImageData(stream, aMimeType, getter_AddRefs(container)); NS_ENSURE_SUCCESS(rv, rv); RefPtr<SourceSurface> surface = container->GetFrame(imgIContainer::FRAME_FIRST, imgIContainer::FLAG_SYNC_DECODE | imgIContainer::FLAG_ASYNC_NOTIFY); NS_ENSURE_TRUE(surface, NS_ERROR_FAILURE); RefPtr<DataSourceSurface> dataSurface; IntSize size; if (mURLShortcut) { // Create a 48x48 surface and paint the icon into the central 16x16 rect. size.width = 48; size.height = 48; dataSurface = Factory::CreateDataSourceSurface(size, SurfaceFormat::B8G8R8A8); NS_ENSURE_TRUE(dataSurface, NS_ERROR_FAILURE); DataSourceSurface::MappedSurface map; if (!dataSurface->Map(DataSourceSurface::MapType::WRITE, &map)) { return NS_ERROR_FAILURE; } RefPtr<DrawTarget> dt = Factory::CreateDrawTargetForData(BackendType::CAIRO, map.mData, dataSurface->GetSize(), map.mStride, dataSurface->GetFormat()); if (!dt) { gfxWarning() << "AsyncFaviconDataReady::OnComplete failed in CreateDrawTargetForData"; return NS_ERROR_OUT_OF_MEMORY; } dt->FillRect(Rect(0, 0, size.width, size.height), ColorPattern(Color(1.0f, 1.0f, 1.0f, 1.0f))); dt->DrawSurface(surface, Rect(16, 16, 16, 16), Rect(Point(0, 0), Size(surface->GetSize().width, surface->GetSize().height))); dataSurface->Unmap(); } else { // By using the input image surface's size, we may end up encoding // to a different size than a 16x16 (or bigger for higher DPI) ICO, but // Windows will resize appropriately for us. If we want to encode ourselves // one day because we like our resizing better, we'd have to manually // resize the image here and use GetSystemMetrics w/ SM_CXSMICON and // SM_CYSMICON. We don't support resizing images asynchronously at the // moment anyway so getting the DPI aware icon size won't help. size.width = surface->GetSize().width; size.height = surface->GetSize().height; dataSurface = surface->GetDataSurface(); NS_ENSURE_TRUE(dataSurface, NS_ERROR_FAILURE); } // Allocate a new buffer that we own and can use out of line in // another thread. UniquePtr<uint8_t[]> data = SurfaceToPackedBGRA(dataSurface); if (!data) { return NS_ERROR_OUT_OF_MEMORY; } int32_t stride = 4 * size.width; // AsyncEncodeAndWriteIcon takes ownership of the heap allocated buffer nsCOMPtr<nsIRunnable> event = new AsyncEncodeAndWriteIcon(path, Move(data), stride, size.width, size.height, mURLShortcut); mIOThread->Dispatch(event, NS_DISPATCH_NORMAL); return NS_OK; } #endif // Warning: AsyncEncodeAndWriteIcon assumes ownership of the aData buffer passed in AsyncEncodeAndWriteIcon::AsyncEncodeAndWriteIcon(const nsAString &aIconPath, UniquePtr<uint8_t[]> aBuffer, uint32_t aStride, uint32_t aWidth, uint32_t aHeight, const bool aURLShortcut) : mURLShortcut(aURLShortcut), mIconPath(aIconPath), mBuffer(Move(aBuffer)), mStride(aStride), mWidth(aWidth), mHeight(aHeight) { } NS_IMETHODIMP AsyncEncodeAndWriteIcon::Run() { NS_PRECONDITION(!NS_IsMainThread(), "Should not be called on the main thread."); // Note that since we're off the main thread we can't use // gfxPlatform::GetPlatform()->ScreenReferenceDrawTarget() RefPtr<DataSourceSurface> surface = Factory::CreateWrappingDataSourceSurface(mBuffer.get(), mStride, IntSize(mWidth, mHeight), SurfaceFormat::B8G8R8A8); FILE* file = fopen(NS_ConvertUTF16toUTF8(mIconPath).get(), "wb"); if (!file) { // Maybe the directory doesn't exist; try creating it, then fopen again. nsresult rv = NS_ERROR_FAILURE; nsCOMPtr<nsIFile> comFile = do_CreateInstance("@mozilla.org/file/local;1"); if (comFile) { //NS_ConvertUTF8toUTF16 utf16path(mIconPath); rv = comFile->InitWithPath(mIconPath); if (NS_SUCCEEDED(rv)) { nsCOMPtr<nsIFile> dirPath; comFile->GetParent(getter_AddRefs(dirPath)); if (dirPath) { rv = dirPath->Create(nsIFile::DIRECTORY_TYPE, 0777); if (NS_SUCCEEDED(rv) || rv == NS_ERROR_FILE_ALREADY_EXISTS) { file = fopen(NS_ConvertUTF16toUTF8(mIconPath).get(), "wb"); if (!file) { rv = NS_ERROR_FAILURE; } } } } } if (!file) { return rv; } } nsresult rv = gfxUtils::EncodeSourceSurface(surface, NS_LITERAL_CSTRING("image/vnd.microsoft.icon"), EmptyString(), gfxUtils::eBinaryEncode, file); fclose(file); NS_ENSURE_SUCCESS(rv, rv); if (mURLShortcut) { SendNotifyMessage(HWND_BROADCAST, WM_SETTINGCHANGE, SPI_SETNONCLIENTMETRICS, 0); } return rv; } AsyncEncodeAndWriteIcon::~AsyncEncodeAndWriteIcon() { } AsyncDeleteIconFromDisk::AsyncDeleteIconFromDisk(const nsAString &aIconPath) : mIconPath(aIconPath) { } NS_IMETHODIMP AsyncDeleteIconFromDisk::Run() { // Construct the parent path of the passed in path nsCOMPtr<nsIFile> icoFile = do_CreateInstance("@mozilla.org/file/local;1"); NS_ENSURE_TRUE(icoFile, NS_ERROR_FAILURE); nsresult rv = icoFile->InitWithPath(mIconPath); NS_ENSURE_SUCCESS(rv, rv); // Check if the cached ICO file exists bool exists; rv = icoFile->Exists(&exists); NS_ENSURE_SUCCESS(rv, rv); // Check that we aren't deleting some arbitrary file that is not an icon if (StringTail(mIconPath, 4).LowerCaseEqualsASCII(".ico")) { // Check if the cached ICO file exists bool exists; if (NS_FAILED(icoFile->Exists(&exists)) || !exists) return NS_ERROR_FAILURE; // We found an ICO file that exists, so we should remove it icoFile->Remove(false); } return NS_OK; } AsyncDeleteIconFromDisk::~AsyncDeleteIconFromDisk() { } AsyncDeleteAllFaviconsFromDisk:: AsyncDeleteAllFaviconsFromDisk(bool aIgnoreRecent) : mIgnoreRecent(aIgnoreRecent) { // We can't call FaviconHelper::GetICOCacheSecondsTimeout() on non-main // threads, as it reads a pref, so cache its value here. mIcoNoDeleteSeconds = FaviconHelper::GetICOCacheSecondsTimeout() + 600; } NS_IMETHODIMP AsyncDeleteAllFaviconsFromDisk::Run() { // Construct the path of our jump list cache nsCOMPtr<nsIFile> jumpListCacheDir; nsresult rv = NS_GetSpecialDirectory("ProfLDS", getter_AddRefs(jumpListCacheDir)); NS_ENSURE_SUCCESS(rv, rv); rv = jumpListCacheDir->AppendNative( nsDependentCString(FaviconHelper::kJumpListCacheDir)); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsISimpleEnumerator> entries; rv = jumpListCacheDir->GetDirectoryEntries(getter_AddRefs(entries)); NS_ENSURE_SUCCESS(rv, rv); // Loop through each directory entry and remove all ICO files found do { bool hasMore = false; if (NS_FAILED(entries->HasMoreElements(&hasMore)) || !hasMore) break; nsCOMPtr<nsISupports> supp; if (NS_FAILED(entries->GetNext(getter_AddRefs(supp)))) break; nsCOMPtr<nsIFile> currFile(do_QueryInterface(supp)); nsAutoString path; if (NS_FAILED(currFile->GetPath(path))) continue; if (StringTail(path, 4).LowerCaseEqualsASCII(".ico")) { // Check if the cached ICO file exists bool exists; if (NS_FAILED(currFile->Exists(&exists)) || !exists) continue; if (mIgnoreRecent) { // Check to make sure the icon wasn't just recently created. // If it was created recently, don't delete it yet. int64_t fileModTime = 0; rv = currFile->GetLastModifiedTime(&fileModTime); fileModTime /= PR_MSEC_PER_SEC; // If the icon is older than the regeneration time (+ 10 min to be // safe), then it's old and we can get rid of it. // This code is only hit directly after a regeneration. int64_t nowTime = PR_Now() / int64_t(PR_USEC_PER_SEC); if (NS_FAILED(rv) || (nowTime - fileModTime) < mIcoNoDeleteSeconds) { continue; } } // We found an ICO file that exists, so we should remove it currFile->Remove(false); } } while(true); return NS_OK; } AsyncDeleteAllFaviconsFromDisk::~AsyncDeleteAllFaviconsFromDisk() { } /* * (static) If the data is available, will return the path on disk where * the favicon for page aFaviconPageURI is stored. If the favicon does not * exist, or its cache is expired, this method will kick off an async request * for the icon so that next time the method is called it will be available. * @param aFaviconPageURI The URI of the page to obtain * @param aICOFilePath The path of the icon file * @param aIOThread The thread to perform the Fetch on * @param aURLShortcut to distinguish between jumplistcache(false) and shortcutcache(true) */ nsresult FaviconHelper::ObtainCachedIconFile(nsCOMPtr<nsIURI> aFaviconPageURI, nsString &aICOFilePath, nsCOMPtr<nsIThread> &aIOThread, bool aURLShortcut) { // Obtain the ICO file path nsCOMPtr<nsIFile> icoFile; nsresult rv = GetOutputIconPath(aFaviconPageURI, icoFile, aURLShortcut); NS_ENSURE_SUCCESS(rv, rv); // Check if the cached ICO file already exists bool exists; rv = icoFile->Exists(&exists); NS_ENSURE_SUCCESS(rv, rv); if (exists) { // Obtain the file's last modification date in seconds int64_t fileModTime = 0; rv = icoFile->GetLastModifiedTime(&fileModTime); fileModTime /= PR_MSEC_PER_SEC; int32_t icoReCacheSecondsTimeout = GetICOCacheSecondsTimeout(); int64_t nowTime = PR_Now() / int64_t(PR_USEC_PER_SEC); // If the last mod call failed or the icon is old then re-cache it // This check is in case the favicon of a page changes // the next time we try to build the jump list, the data will be available. if (NS_FAILED(rv) || (nowTime - fileModTime) > icoReCacheSecondsTimeout) { CacheIconFileFromFaviconURIAsync(aFaviconPageURI, icoFile, aIOThread, aURLShortcut); return NS_ERROR_NOT_AVAILABLE; } } else { // The file does not exist yet, obtain it async from the favicon service so that // the next time we try to build the jump list it'll be available. CacheIconFileFromFaviconURIAsync(aFaviconPageURI, icoFile, aIOThread, aURLShortcut); return NS_ERROR_NOT_AVAILABLE; } // The icoFile is filled with a path that exists, get its path rv = icoFile->GetPath(aICOFilePath); return rv; } nsresult FaviconHelper::HashURI(nsCOMPtr<nsICryptoHash> &aCryptoHash, nsIURI *aUri, nsACString& aUriHash) { if (!aUri) return NS_ERROR_INVALID_ARG; nsAutoCString spec; nsresult rv = aUri->GetSpec(spec); NS_ENSURE_SUCCESS(rv, rv); if (!aCryptoHash) { aCryptoHash = do_CreateInstance(NS_CRYPTO_HASH_CONTRACTID, &rv); NS_ENSURE_SUCCESS(rv, rv); } rv = aCryptoHash->Init(nsICryptoHash::MD5); NS_ENSURE_SUCCESS(rv, rv); rv = aCryptoHash->Update(reinterpret_cast<const uint8_t*>(spec.BeginReading()), spec.Length()); NS_ENSURE_SUCCESS(rv, rv); rv = aCryptoHash->Finish(true, aUriHash); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } // (static) Obtains the ICO file for the favicon at page aFaviconPageURI // If successful, the file path on disk is in the format: // <ProfLDS>\jumpListCache\<hash(aFaviconPageURI)>.ico nsresult FaviconHelper::GetOutputIconPath(nsCOMPtr<nsIURI> aFaviconPageURI, nsCOMPtr<nsIFile> &aICOFile, bool aURLShortcut) { // Hash the input URI and replace any / with _ nsAutoCString inputURIHash; nsCOMPtr<nsICryptoHash> cryptoHash; nsresult rv = HashURI(cryptoHash, aFaviconPageURI, inputURIHash); NS_ENSURE_SUCCESS(rv, rv); char* cur = inputURIHash.BeginWriting(); char* end = inputURIHash.EndWriting(); for (; cur < end; ++cur) { if ('/' == *cur) { *cur = '_'; } } // Obtain the local profile directory and construct the output icon file path rv = NS_GetSpecialDirectory("ProfLDS", getter_AddRefs(aICOFile)); NS_ENSURE_SUCCESS(rv, rv); if (!aURLShortcut) rv = aICOFile->AppendNative(nsDependentCString(kJumpListCacheDir)); else rv = aICOFile->AppendNative(nsDependentCString(kShortcutCacheDir)); NS_ENSURE_SUCCESS(rv, rv); // Append the icon extension inputURIHash.AppendLiteral(".ico"); rv = aICOFile->AppendNative(inputURIHash); return rv; } // (static) Asynchronously creates a cached ICO file on disk for the favicon of // page aFaviconPageURI and stores it to disk at the path of aICOFile. nsresult FaviconHelper::CacheIconFileFromFaviconURIAsync(nsCOMPtr<nsIURI> aFaviconPageURI, nsCOMPtr<nsIFile> aICOFile, nsCOMPtr<nsIThread> &aIOThread, bool aURLShortcut) { #ifdef MOZ_PLACES // Obtain the favicon service and get the favicon for the specified page nsCOMPtr<mozIAsyncFavicons> favIconSvc( do_GetService("@mozilla.org/browser/favicon-service;1")); NS_ENSURE_TRUE(favIconSvc, NS_ERROR_FAILURE); nsCOMPtr<nsIFaviconDataCallback> callback = new mozilla::widget::AsyncFaviconDataReady(aFaviconPageURI, aIOThread, aURLShortcut); favIconSvc->GetFaviconDataForPage(aFaviconPageURI, callback); #endif return NS_OK; } // Obtains the jump list 'ICO cache timeout in seconds' pref int32_t FaviconHelper::GetICOCacheSecondsTimeout() { // Only obtain the setting at most once from the pref service. // In the rare case that 2 threads call this at the same // time it is no harm and we will simply obtain the pref twice. // None of the taskbar list prefs are currently updated via a // pref observer so I think this should suffice. const int32_t kSecondsPerDay = 86400; static bool alreadyObtained = false; static int32_t icoReCacheSecondsTimeout = kSecondsPerDay; if (alreadyObtained) { return icoReCacheSecondsTimeout; } // Obtain the pref const char PREF_ICOTIMEOUT[] = "browser.taskbar.lists.icoTimeoutInSeconds"; icoReCacheSecondsTimeout = Preferences::GetInt(PREF_ICOTIMEOUT, kSecondsPerDay); alreadyObtained = true; return icoReCacheSecondsTimeout; } /* static */ bool WinUtils::GetShellItemPath(IShellItem* aItem, nsString& aResultString) { NS_ENSURE_TRUE(aItem, false); LPWSTR str = nullptr; if (FAILED(aItem->GetDisplayName(SIGDN_FILESYSPATH, &str))) return false; aResultString.Assign(str); CoTaskMemFree(str); return !aResultString.IsEmpty(); } /* static */ nsIntRegion WinUtils::ConvertHRGNToRegion(HRGN aRgn) { NS_ASSERTION(aRgn, "Don't pass NULL region here"); nsIntRegion rgn; DWORD size = ::GetRegionData(aRgn, 0, nullptr); AutoTArray<uint8_t,100> buffer; buffer.SetLength(size); RGNDATA* data = reinterpret_cast<RGNDATA*>(buffer.Elements()); if (!::GetRegionData(aRgn, size, data)) return rgn; if (data->rdh.nCount > MAX_RECTS_IN_REGION) { rgn = ToIntRect(data->rdh.rcBound); return rgn; } RECT* rects = reinterpret_cast<RECT*>(data->Buffer); for (uint32_t i = 0; i < data->rdh.nCount; ++i) { RECT* r = rects + i; rgn.Or(rgn, ToIntRect(*r)); } return rgn; } nsIntRect WinUtils::ToIntRect(const RECT& aRect) { return nsIntRect(aRect.left, aRect.top, aRect.right - aRect.left, aRect.bottom - aRect.top); } /* static */ bool WinUtils::IsIMEEnabled(const InputContext& aInputContext) { return IsIMEEnabled(aInputContext.mIMEState.mEnabled); } /* static */ bool WinUtils::IsIMEEnabled(IMEState::Enabled aIMEState) { return (aIMEState == IMEState::ENABLED || aIMEState == IMEState::PLUGIN); } /* static */ void WinUtils::SetupKeyModifiersSequence(nsTArray<KeyPair>* aArray, uint32_t aModifiers) { for (uint32_t i = 0; i < ArrayLength(sModifierKeyMap); ++i) { const uint32_t* map = sModifierKeyMap[i]; if (aModifiers & map[0]) { aArray->AppendElement(KeyPair(map[1], map[2])); } } } /* static */ bool WinUtils::ShouldHideScrollbars() { return false; } // This is in use here and in dom/events/TouchEvent.cpp /* static */ uint32_t WinUtils::IsTouchDeviceSupportPresent() { int32_t touchCapabilities = ::GetSystemMetrics(SM_DIGITIZER); return (touchCapabilities & NID_READY) && (touchCapabilities & (NID_EXTERNAL_TOUCH | NID_INTEGRATED_TOUCH)); } /* static */ uint32_t WinUtils::GetMaxTouchPoints() { if (IsTouchDeviceSupportPresent()) { return GetSystemMetrics(SM_MAXIMUMTOUCHES); } return 0; } typedef DWORD (WINAPI * GetFinalPathNameByHandlePtr)(HANDLE hFile, LPTSTR lpszFilePath, DWORD cchFilePath, DWORD dwFlags); /* static */ bool WinUtils::ResolveJunctionPointsAndSymLinks(std::wstring& aPath) { wchar_t path[MAX_PATH] = { 0 }; nsAutoHandle handle( ::CreateFileW(aPath.c_str(), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, nullptr)); if (handle == INVALID_HANDLE_VALUE) { return false; } // GetFinalPathNameByHandleW is a Vista and later API. Since ESR builds with // XP support still, we need to load the function manually. GetFinalPathNameByHandlePtr getFinalPathNameFnPtr = nullptr; HMODULE kernel32Dll = ::GetModuleHandleW(L"Kernel32"); if (kernel32Dll) { getFinalPathNameFnPtr = (GetFinalPathNameByHandlePtr) ::GetProcAddress(kernel32Dll, "GetFinalPathNameByHandleW"); } if (!getFinalPathNameFnPtr) { return false; } DWORD pathLen = getFinalPathNameFnPtr( handle, path, MAX_PATH, FILE_NAME_NORMALIZED | VOLUME_NAME_DOS); if (pathLen == 0 || pathLen >= MAX_PATH) { return false; } aPath = path; // GetFinalPathNameByHandle sticks a '\\?\' in front of the path, // but that confuses some APIs so strip it off. It will also put // '\\?\UNC\' in front of network paths, we convert that to '\\'. if (aPath.compare(0, 7, L"\\\\?\\UNC") == 0) { aPath.erase(2, 6); } else if (aPath.compare(0, 4, L"\\\\?\\") == 0) { aPath.erase(0, 4); } return true; } /* static */ bool WinUtils::SanitizePath(const wchar_t* aInputPath, nsAString& aOutput) { aOutput.Truncate(); wchar_t buffer[MAX_PATH + 1] = {0}; if (!PathCanonicalizeW(buffer, aInputPath)) { return false; } wchar_t longBuffer[MAX_PATH + 1] = {0}; DWORD longResult = GetLongPathNameW(buffer, longBuffer, MAX_PATH); if (longResult == 0 || longResult > MAX_PATH - 1) { return false; } aOutput.SetLength(MAX_PATH + 1); wchar_t* output = reinterpret_cast<wchar_t*>(aOutput.BeginWriting()); if (!PathUnExpandEnvStringsW(longBuffer, output, MAX_PATH)) { return false; } // Truncate to correct length aOutput.Truncate(wcslen(char16ptr_t(aOutput.BeginReading()))); MOZ_ASSERT(aOutput.Length() <= MAX_PATH); return true; } /** * This function provides an array of (system path, substitution) pairs that are * considered to be acceptable with respect to privacy, for the purposes of * submitting within telemetry or crash reports. * * The substitution string's void flag may be set. If it is, no subsitution is * necessary. Otherwise, the consumer should replace the system path with the * substitution. * * @see GetAppInitDLLs for an example of its usage. */ /* static */ void WinUtils::GetWhitelistedPaths( nsTArray<mozilla::Pair<nsString,nsDependentString>>& aOutput) { aOutput.Clear(); aOutput.AppendElement(mozilla::MakePair( nsString(NS_LITERAL_STRING("%ProgramFiles%")), nsDependentString())); // When no substitution is required, set the void flag aOutput.LastElement().second().SetIsVoid(true); wchar_t tmpPath[MAX_PATH + 1] = {0}; if (GetTempPath(MAX_PATH, tmpPath)) { // GetTempPath's result always ends with a backslash, which we don't want uint32_t tmpPathLen = wcslen(tmpPath); if (tmpPathLen) { tmpPath[tmpPathLen - 1] = 0; } nsAutoString cleanTmpPath; if (SanitizePath(tmpPath, cleanTmpPath)) { aOutput.AppendElement(mozilla::MakePair(nsString(cleanTmpPath), nsDependentString(L"%TEMP%"))); } } } /** * This function is located here (as opposed to nsSystemInfo or elsewhere) * because we need to gather this information as early as possible during * startup. */ /* static */ bool WinUtils::GetAppInitDLLs(nsAString& aOutput) { aOutput.Truncate(); HKEY hkey = NULL; if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Windows", 0, KEY_QUERY_VALUE, &hkey)) { return false; } nsAutoRegKey key(hkey); LONG status; const wchar_t kLoadAppInitDLLs[] = L"LoadAppInit_DLLs"; DWORD loadAppInitDLLs = 0; DWORD loadAppInitDLLsLen = sizeof(loadAppInitDLLs); status = RegQueryValueExW(hkey, kLoadAppInitDLLs, nullptr, nullptr, (LPBYTE)&loadAppInitDLLs, &loadAppInitDLLsLen); if (status != ERROR_SUCCESS) { return false; } if (!loadAppInitDLLs) { // If loadAppInitDLLs is zero then AppInit_DLLs is disabled. // In this case we'll return true along with an empty output string. return true; } DWORD numBytes = 0; const wchar_t kAppInitDLLs[] = L"AppInit_DLLs"; // Query for required buffer size status = RegQueryValueExW(hkey, kAppInitDLLs, nullptr, nullptr, nullptr, &numBytes); if (status != ERROR_SUCCESS) { return false; } // Allocate the buffer and query for the actual data mozilla::UniquePtr<wchar_t[]> data = mozilla::MakeUnique<wchar_t[]>(numBytes / sizeof(wchar_t)); status = RegQueryValueExW(hkey, kAppInitDLLs, nullptr, nullptr, (LPBYTE)data.get(), &numBytes); if (status != ERROR_SUCCESS) { return false; } nsTArray<mozilla::Pair<nsString,nsDependentString>> whitelistedPaths; GetWhitelistedPaths(whitelistedPaths); // For each token, split up the filename components and then check the // name of the file. const wchar_t kDelimiters[] = L", "; wchar_t* tokenContext = nullptr; wchar_t* token = wcstok_s(data.get(), kDelimiters, &tokenContext); while (token) { nsAutoString cleanPath; // Since these paths are short paths originating from the registry, we need // to canonicalize them, lengthen them, and sanitize them before we can // check them against the whitelist if (SanitizePath(token, cleanPath)) { bool needsStrip = true; for (uint32_t i = 0; i < whitelistedPaths.Length(); ++i) { const nsString& testPath = whitelistedPaths[i].first(); const nsDependentString& substitution = whitelistedPaths[i].second(); if (StringBeginsWith(cleanPath, testPath, nsCaseInsensitiveStringComparator())) { if (!substitution.IsVoid()) { cleanPath.Replace(0, testPath.Length(), substitution); } // Whitelisted paths may be used as-is provided that they have been // previously sanitized. needsStrip = false; break; } } if (!aOutput.IsEmpty()) { aOutput += L";"; } // For non-whitelisted paths, we strip the path component and just leave // the filename. if (needsStrip) { // nsLocalFile doesn't like non-absolute paths. Since these paths might // contain environment variables instead of roots, we can't use it. wchar_t tmpPath[MAX_PATH + 1] = {0}; wcsncpy(tmpPath, cleanPath.get(), cleanPath.Length()); PathStripPath(tmpPath); aOutput += tmpPath; } else { aOutput += cleanPath; } } token = wcstok_s(nullptr, kDelimiters, &tokenContext); } return true; } } // namespace widget } // namespace mozilla