| # 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. |
| |
| """Launches Chrome. |
| |
| This script launches Chrome and waits until its window shows up. |
| """ |
| |
| import optparse |
| import sys |
| import time |
| import win32process |
| |
| import chrome_helper |
| |
| |
| def WaitForWindow(process_id, class_pattern): |
| """Waits until a window specified by |process_id| and class name shows up. |
| |
| Args: |
| process_id: The ID of the process that owns the window. |
| class_pattern: The regular expression pattern of the window class name. |
| |
| Returns: |
| A boolean value indicating whether the specified window shows up within |
| 30 seconds. |
| """ |
| start_time = time.time() |
| while time.time() - start_time < 30: |
| if chrome_helper.WindowExists([process_id], class_pattern): |
| return True |
| time.sleep(0.1) |
| return False |
| |
| |
| def main(): |
| usage = 'usage: %prog chrome_path' |
| parser = optparse.OptionParser(usage, description='Launch Chrome.') |
| _, args = parser.parse_args() |
| if len(args) != 1: |
| parser.error('Incorrect number of arguments.') |
| chrome_path = args[0] |
| |
| # Use CreateProcess rather than subprocess.Popen to avoid side effects such as |
| # handle interitance. |
| _, _, process_id, _ = win32process.CreateProcess(None, chrome_path, None, |
| None, 0, 0, None, None, |
| win32process.STARTUPINFO()) |
| if not WaitForWindow(process_id, 'Chrome_WidgetWin_'): |
| raise Exception('Could not launch Chrome.') |
| return 0 |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |
