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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chrome_process_finder_win.h"
#include <shellapi.h>
#include <string>
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/process/process.h"
#include "base/process/process_info.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/win/message_window.h"
#include "base/win/scoped_handle.h"
#include "base/win/win_util.h"
#include "base/win/windows_version.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_switches.h"
namespace {
int timeout_in_milliseconds = 20 * 1000;
} // namespace
namespace chrome {
HWND FindRunningChromeWindow(const base::FilePath& user_data_dir) {
return base::win::MessageWindow::FindWindow(user_data_dir.value());
}
NotifyChromeResult AttemptToNotifyRunningChrome(HWND remote_window,
bool fast_start) {
DCHECK(remote_window);
DWORD process_id = 0;
DWORD thread_id = GetWindowThreadProcessId(remote_window, &process_id);
if (!thread_id || !process_id)
return NOTIFY_FAILED;
base::CommandLine command_line(*base::CommandLine::ForCurrentProcess());
command_line.AppendSwitchASCII(
switches::kOriginalProcessStartTime,
base::Int64ToString(
base::CurrentProcessInfo::CreationTime().ToInternalValue()));
if (fast_start)
command_line.AppendSwitch(switches::kFastStart);
// Send the command line to the remote chrome window.
// Format is "START\0<<<current directory>>>\0<<<commandline>>>".
std::wstring to_send(L"START\0", 6); // want the NULL in the string.
base::FilePath cur_dir;
if (!base::GetCurrentDirectory(&cur_dir))
return NOTIFY_FAILED;
to_send.append(cur_dir.value());
to_send.append(L"\0", 1); // Null separator.
to_send.append(command_line.GetCommandLineString());
to_send.append(L"\0", 1); // Null separator.
// Allow the current running browser window to make itself the foreground
// window (otherwise it will just flash in the taskbar).
::AllowSetForegroundWindow(process_id);
COPYDATASTRUCT cds;
cds.dwData = 0;
cds.cbData = static_cast<DWORD>((to_send.length() + 1) * sizeof(wchar_t));
cds.lpData = const_cast<wchar_t*>(to_send.c_str());
DWORD_PTR result = 0;
if (::SendMessageTimeout(remote_window, WM_COPYDATA, NULL,
reinterpret_cast<LPARAM>(&cds), SMTO_ABORTIFHUNG,
timeout_in_milliseconds, &result)) {
return result ? NOTIFY_SUCCESS : NOTIFY_FAILED;
}
// It is possible that the process owning this window may have died by now.
if (!::IsWindow(remote_window))
return NOTIFY_FAILED;
// If the window couldn't be notified but still exists, assume it is hung.
return NOTIFY_WINDOW_HUNG;
}
base::TimeDelta SetNotificationTimeoutForTesting(base::TimeDelta new_timeout) {
base::TimeDelta old_timeout =
base::TimeDelta::FromMilliseconds(timeout_in_milliseconds);
timeout_in_milliseconds = new_timeout.InMilliseconds();
return old_timeout;
}
} // namespace chrome
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