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