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gecko-dev/widget/windows/WinUtils.cpp

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/* -*- 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 "gfxPlatform.h"
#include "nsWindow.h"
#include "nsWindowDefs.h"
#include "KeyboardLayout.h"
#include "nsIDOMMouseEvent.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/DataSurfaceHelpers.h"
#include "mozilla/Preferences.h"
#include "mozilla/RefPtr.h"
#include "mozilla/WindowsVersion.h"
#ifdef MOZ_LOGGING
#define FORCE_PR_LOG /* Allow logging in the release build */
#endif // MOZ_LOGGING
#include "prlog.h"
#include "nsString.h"
#include "nsDirectoryServiceUtils.h"
#include "imgIContainer.h"
#include "imgITools.h"
#include "nsStringStream.h"
#include "nsNetUtil.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 "gfxColor.h"
#ifdef MOZ_METRO
#include "winrt/MetroInput.h"
#include "winrt/MetroUtils.h"
#endif // MOZ_METRO
#ifdef NS_ENABLE_TSF
#include <textstor.h>
#include "nsTextStore.h"
#endif // #ifdef NS_ENABLE_TSF
#ifdef PR_LOGGING
PRLogModuleInfo* gWindowsLog = nullptr;
#endif
using namespace mozilla::gfx;
namespace mozilla {
namespace widget {
NS_IMPL_ISUPPORTS(myDownloadObserver, nsIDownloadObserver)
#ifdef MOZ_PLACES
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;
/* static */
void
WinUtils::Initialize()
{
#ifdef PR_LOGGING
if (!gWindowsLog) {
gWindowsLog = PR_NewLogModule("Widget");
}
#endif
if (!sDwmDll && IsVistaOrLater()) {
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");
}
}
}
// 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 = wcslen(buffer);
if (len) {
char* utf8 = new char[len+1];
memset(utf8, 0, sizeof(utf8));
if (WideCharToMultiByte(CP_ACP, 0, buffer,
-1, utf8, len+1, nullptr,
nullptr) > 0) {
// desktop console
printf("%s\n", utf8);
#ifdef PR_LOGGING
NS_ASSERTION(gWindowsLog, "Called WinUtils Log() but Widget "
"log module doesn't exist!");
PR_LOG(gWindowsLog, PR_LOG_ALWAYS, (utf8));
#endif
}
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);
#ifdef PR_LOGGING
NS_ASSERTION(gWindowsLog, "Called WinUtils Log() but Widget "
"log module doesn't exist!");
PR_LOG(gWindowsLog, PR_LOG_ALWAYS, (buffer));
#endif
delete[] buffer;
}
/* static */
double
WinUtils::LogToPhysFactor()
{
// dpi / 96.0
if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Metro) {
#ifdef MOZ_METRO
return MetroUtils::LogToPhysFactor();
#else
return 1.0;
#endif
} else {
HDC hdc = ::GetDC(nullptr);
double result = ::GetDeviceCaps(hdc, LOGPIXELSY) / 96.0;
::ReleaseDC(nullptr, hdc);
if (result == 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!
result = 1.0;
}
return result;
}
}
/* static */
double
WinUtils::PhysToLogFactor()
{
// 1.0 / (dpi / 96.0)
return 1.0 / LogToPhysFactor();
}
/* static */
double
WinUtils::PhysToLog(int32_t aValue)
{
return double(aValue) * PhysToLogFactor();
}
/* static */
int32_t
WinUtils::LogToPhys(double aValue)
{
return int32_t(NS_round(aValue * LogToPhysFactor()));
}
/* static */
bool
WinUtils::PeekMessage(LPMSG aMsg, HWND aWnd, UINT aFirstMessage,
UINT aLastMessage, UINT aOption)
{
#ifdef NS_ENABLE_TSF
ITfMessagePump* msgPump = nsTextStore::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
ITfMessagePump* msgPump = nsTextStore::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);
}
/* static */
void
WinUtils::WaitForMessage()
{
DWORD result = ::MsgWaitForMultipleObjectsEx(0, NULL, INFINITE, QS_ALLINPUT,
MWMO_INPUTAVAILABLE);
NS_WARN_IF_FALSE(result != WAIT_FAILED, "Wait failed");
// This idiom is taken from the Chromium ipc code, see
// ipc/chromium/src/base/message+puimp_win.cpp:270.
// The intent is to avoid a busy wait when MsgWaitForMultipleObjectsEx
// returns quickly but PeekMessage would not return a message.
if (result == WAIT_OBJECT_0) {
MSG msg = {0};
DWORD queue_status = ::GetQueueStatus(QS_MOUSE);
if (HIWORD(queue_status) & QS_MOUSE &&
!PeekMessage(&msg, NULL, WM_MOUSEFIRST, WM_MOUSELAST, PM_NOREMOVE)) {
::WaitMessage();
}
}
}
/* 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) {
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%p",
::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);
}
bool
WinUtils::GetIsMouseFromTouch(uint32_t aEventType)
{
#define MOUSEEVENTF_FROMTOUCH 0xFF515700
return (aEventType == NS_MOUSE_BUTTON_DOWN ||
aEventType == NS_MOUSE_BUTTON_UP ||
aEventType == NS_MOUSE_MOVE) &&
(GetMessageExtraInfo() & MOUSEEVENTF_FROMTOUCH);
}
/* 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);
}
#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);
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);
channel->AsyncOpen(listener, nullptr);
return NS_OK;
}
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)
nsAutoCString mimeTypeOfInputData;
mimeTypeOfInputData.AssignLiteral("image/vnd.microsoft.icon");
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, 0);
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());
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.
uint8_t *data = SurfaceToPackedBGRA(dataSurface);
if (!data) {
return NS_ERROR_OUT_OF_MEMORY;
}
int32_t stride = 4 * size.width;
int32_t dataLength = stride * size.height;
// AsyncEncodeAndWriteIcon takes ownership of the heap allocated buffer
nsCOMPtr<nsIRunnable> event = new AsyncEncodeAndWriteIcon(path, data,
dataLength,
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,
uint8_t *aBuffer,
uint32_t aBufferLength,
uint32_t aStride,
uint32_t aWidth,
uint32_t aHeight,
const bool aURLShortcut) :
mURLShortcut(aURLShortcut),
mIconPath(aIconPath),
mBuffer(aBuffer),
mBufferLength(aBufferLength),
mStride(aStride),
mWidth(aWidth),
mHeight(aHeight)
{
}
NS_IMETHODIMP AsyncEncodeAndWriteIcon::Run()
{
NS_PRECONDITION(!NS_IsMainThread(), "Should not be called on the main thread.");
nsCOMPtr<nsIInputStream> iconStream;
nsRefPtr<imgIEncoder> encoder =
do_CreateInstance("@mozilla.org/image/encoder;2?"
"type=image/vnd.microsoft.icon");
NS_ENSURE_TRUE(encoder, NS_ERROR_FAILURE);
nsresult rv = encoder->InitFromData(mBuffer, mBufferLength,
mWidth, mHeight,
mStride,
imgIEncoder::INPUT_FORMAT_HOSTARGB,
EmptyString());
NS_ENSURE_SUCCESS(rv, rv);
CallQueryInterface(encoder.get(), getter_AddRefs(iconStream));
if (!iconStream) {
return NS_ERROR_FAILURE;
}
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> icoFile
= do_CreateInstance("@mozilla.org/file/local;1");
NS_ENSURE_TRUE(icoFile, NS_ERROR_FAILURE);
rv = icoFile->InitWithPath(mIconPath);
// Try to create the directory if it's not there yet
nsCOMPtr<nsIFile> dirPath;
icoFile->GetParent(getter_AddRefs(dirPath));
rv = (dirPath->Create(nsIFile::DIRECTORY_TYPE, 0777));
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_ALREADY_EXISTS) {
return rv;
}
// Setup the output stream for the ICO file on disk
nsCOMPtr<nsIOutputStream> outputStream;
rv = NS_NewLocalFileOutputStream(getter_AddRefs(outputStream), icoFile);
NS_ENSURE_SUCCESS(rv, rv);
// Obtain the ICO buffer size from the re-encoded ICO stream
uint64_t bufSize64;
rv = iconStream->Available(&bufSize64);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(bufSize64 <= UINT32_MAX, NS_ERROR_FILE_TOO_BIG);
uint32_t bufSize = (uint32_t)bufSize64;
// Setup a buffered output stream from the stream object
// so that we can simply use WriteFrom with the stream object
nsCOMPtr<nsIOutputStream> bufferedOutputStream;
rv = NS_NewBufferedOutputStream(getter_AddRefs(bufferedOutputStream),
outputStream, bufSize);
NS_ENSURE_SUCCESS(rv, rv);
// Write out the icon stream to disk and make sure we wrote everything
uint32_t wrote;
rv = bufferedOutputStream->WriteFrom(iconStream, bufSize, &wrote);
NS_ASSERTION(bufSize == wrote,
"Icon wrote size should be equal to requested write size");
// Cleanup
bufferedOutputStream->Close();
outputStream->Close();
if (mURLShortcut) {
SendMessage(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()
{
}
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;
// 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);
nsAutoTArray<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()
{
#ifdef MOZ_METRO
if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Metro) {
return widget::winrt::MetroInput::IsInputModeImprecise();
}
#endif // MOZ_METRO
return false;
}
} // namespace widget
} // namespace mozilla
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