bool
PluginHangUIParent::Init(const nsString& aPluginName)
{
if (mHangUIProcessHandle) {
return false;
}
nsresult rv;
rv = mMiniShm.Init(this, ::IsDebuggerPresent() ? INFINITE : kTimeout);
NS_ENSURE_SUCCESS(rv, false);
nsCOMPtr<nsIProperties>
directoryService(do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID));
if (!directoryService) {
return false;
}
nsCOMPtr<nsIFile> greDir;
rv = directoryService->Get(NS_GRE_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(greDir));
if (NS_FAILED(rv)) {
return false;
}
nsAutoString path;
greDir->GetPath(path);
FilePath exePath(path.get());
exePath = exePath.AppendASCII(MOZ_HANGUI_PROCESS_NAME);
CommandLine commandLine(exePath.value());
nsXPIDLString localizedStr;
const PRUnichar* formatParams[] = { aPluginName.get() };
rv = nsContentUtils::FormatLocalizedString(nsContentUtils::eDOM_PROPERTIES,
"PluginHangUIMessage",
formatParams,
localizedStr);
if (NS_FAILED(rv)) {
return false;
}
commandLine.AppendLooseValue(localizedStr.get());
const char* keys[] = { "PluginHangUITitle",
"PluginHangUIWaitButton",
"PluginHangUIStopButton",
"DontAskAgain" };
for (unsigned int i = 0; i < ArrayLength(keys); ++i) {
rv = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
keys[i],
localizedStr);
if (NS_FAILED(rv)) {
return false;
}
commandLine.AppendLooseValue(localizedStr.get());
}
rv = GetHangUIOwnerWindowHandle(mMainWindowHandle);
if (NS_FAILED(rv)) {
return false;
}
nsAutoString hwndStr;
hwndStr.AppendPrintf("%p", mMainWindowHandle);
commandLine.AppendLooseValue(hwndStr.get());
ScopedHandle procHandle(::OpenProcess(SYNCHRONIZE,
TRUE,
GetCurrentProcessId()));
if (!procHandle.IsValid()) {
return false;
}
nsAutoString procHandleStr;
procHandleStr.AppendPrintf("%p", procHandle.Get());
commandLine.AppendLooseValue(procHandleStr.get());
std::wstring ipcCookie;
rv = mMiniShm.GetCookie(ipcCookie);
if (NS_FAILED(rv)) {
return false;
}
commandLine.AppendLooseValue(ipcCookie);
mShowEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL);
ScopedHandle showEvent(::CreateEvent(NULL, FALSE, FALSE, NULL));
if (!showEvent.IsValid()) {
return false;
}
mShowEvent = showEvent.Get();
STARTUPINFO startupInfo = { sizeof(STARTUPINFO) };
PROCESS_INFORMATION processInfo = { NULL };
BOOL isProcessCreated = ::CreateProcess(exePath.value().c_str(),
const_cast<wchar_t*>(commandLine.command_line_string().c_str()),
nullptr,
nullptr,
TRUE,
DETACHED_PROCESS,
nullptr,
nullptr,
&startupInfo,
&processInfo);
if (isProcessCreated) {
::CloseHandle(processInfo.hThread);
mHangUIProcessHandle = processInfo.hProcess;
::RegisterWaitForSingleObject(&mRegWait,
processInfo.hProcess,
&SOnHangUIProcessExit,
this,
INFINITE,
WT_EXECUTEDEFAULT | WT_EXECUTEONLYONCE);
::WaitForSingleObject(mShowEvent, kTimeout);
}
mShowEvent = NULL;
return !(!isProcessCreated);
}
bool
PluginHangUIParent::Init(const nsString& aPluginName)
{
if (mHangUIProcessHandle) {
return false;
}
nsresult rv;
rv = mMiniShm.Init(this, ::IsDebuggerPresent() ? INFINITE : mIPCTimeoutMs);
NS_ENSURE_SUCCESS(rv, false);
nsCOMPtr<nsIProperties>
directoryService(do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID));
if (!directoryService) {
return false;
}
nsCOMPtr<nsIFile> greDir;
rv = directoryService->Get(NS_GRE_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(greDir));
if (NS_FAILED(rv)) {
return false;
}
nsAutoString path;
greDir->GetPath(path);
FilePath exePath(path.get());
exePath = exePath.AppendASCII(MOZ_HANGUI_PROCESS_NAME);
CommandLine commandLine(exePath.value());
nsXPIDLString localizedStr;
const PRUnichar* formatParams[] = { aPluginName.get() };
rv = nsContentUtils::FormatLocalizedString(nsContentUtils::eDOM_PROPERTIES,
"PluginHangUIMessage",
formatParams,
localizedStr);
if (NS_FAILED(rv)) {
return false;
}
commandLine.AppendLooseValue(localizedStr.get());
const char* keys[] = { "PluginHangUITitle",
"PluginHangUIWaitButton",
"PluginHangUIStopButton",
"DontAskAgain" };
for (unsigned int i = 0; i < ArrayLength(keys); ++i) {
rv = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
keys[i],
localizedStr);
if (NS_FAILED(rv)) {
return false;
}
commandLine.AppendLooseValue(localizedStr.get());
}
rv = GetHangUIOwnerWindowHandle(mMainWindowHandle);
if (NS_FAILED(rv)) {
return false;
}
nsAutoString hwndStr;
hwndStr.AppendPrintf("%p", mMainWindowHandle);
commandLine.AppendLooseValue(hwndStr.get());
ScopedHandle procHandle(::OpenProcess(SYNCHRONIZE,
TRUE,
GetCurrentProcessId()));
if (!procHandle.IsValid()) {
return false;
}
nsAutoString procHandleStr;
procHandleStr.AppendPrintf("%p", procHandle.Get());
commandLine.AppendLooseValue(procHandleStr.get());
// On Win7+, pass the application user model to the child, so it can
// register with it. This insures windows created by the Hang UI
// properly group with the parent app on the Win7 taskbar.
nsCOMPtr<nsIWinTaskbar> taskbarInfo = do_GetService(NS_TASKBAR_CONTRACTID);
if (taskbarInfo) {
bool isSupported = false;
taskbarInfo->GetAvailable(&isSupported);
nsAutoString appId;
if (isSupported && NS_SUCCEEDED(taskbarInfo->GetDefaultGroupId(appId))) {
commandLine.AppendLooseValue(appId.get());
} else {
commandLine.AppendLooseValue(L"-");
}
} else {
commandLine.AppendLooseValue(L"-");
}
nsAutoString ipcTimeoutStr;
ipcTimeoutStr.AppendInt(mIPCTimeoutMs);
commandLine.AppendLooseValue(ipcTimeoutStr.get());
std::wstring ipcCookie;
rv = mMiniShm.GetCookie(ipcCookie);
if (NS_FAILED(rv)) {
return false;
}
commandLine.AppendLooseValue(ipcCookie);
ScopedHandle showEvent(::CreateEvent(nullptr, FALSE, FALSE, nullptr));
if (!showEvent.IsValid()) {
return false;
}
mShowEvent = showEvent.Get();
MutexAutoLock lock(mMutex);
STARTUPINFO startupInfo = { sizeof(STARTUPINFO) };
PROCESS_INFORMATION processInfo = { nullptr };
BOOL isProcessCreated = ::CreateProcess(exePath.value().c_str(),
const_cast<wchar_t*>(commandLine.command_line_string().c_str()),
nullptr,
nullptr,
TRUE,
DETACHED_PROCESS,
nullptr,
nullptr,
&startupInfo,
&processInfo);
if (isProcessCreated) {
::CloseHandle(processInfo.hThread);
mHangUIProcessHandle = processInfo.hProcess;
::RegisterWaitForSingleObject(&mRegWait,
processInfo.hProcess,
&SOnHangUIProcessExit,
this,
INFINITE,
WT_EXECUTEDEFAULT | WT_EXECUTEONLYONCE);
::WaitForSingleObject(mShowEvent, ::IsDebuggerPresent() ? INFINITE
: mIPCTimeoutMs);
// Setting this to true even if we time out on mShowEvent. This timeout
// typically occurs when the machine is thrashing so badly that
// plugin-hang-ui.exe is taking a while to start. If we didn't set
// this to true, Firefox would keep spawning additional plugin-hang-ui
// processes, which is not what we want.
mIsShowing = true;
}
mShowEvent = nullptr;
return !(!isProcessCreated);
}
