chrome/test/chromedriver/embed_js_in_cpp.py

   1 #!/usr/bin/env python
   2 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 """Embeds standalone JavaScript snippets in C++ code.
   7
   8 Each argument to the script must be a file containing an associated JavaScript
   9 function (e.g., evaluate_script.js should contain an evaluateScript function).
  10 This is called the exported function of the script. The entire script will be
  11 put into a C-style string in the form of an anonymous function which invokes
  12 the exported function when called.
  13 """
  14
  15 import optparse
  16 import os
  17 import sys
  18
  19 import cpp_source
  20
  21
  22 def main():
  23   parser = optparse.OptionParser()
  24   parser.add_option(
  25       '', '--directory', type='string', default='.',
  26       help='Path to directory where the cc/h js file should be created')
  27   options, args = parser.parse_args()
  28
  29   global_string_map = {}
  30   for js_file in args:
  31     base_name = os.path.basename(js_file)[:-3].title().replace('_', '')
  32     func_name = base_name[0].lower() + base_name[1:]
  33     script_name = 'k%sScript' % base_name
  34     with open(js_file, 'r') as f:
  35       contents = f.read()
  36     script = 'function() { %s; return %s.apply(null, arguments) }' % (
  37         contents, func_name)
  38     global_string_map[script_name] = script
  39
  40   cpp_source.WriteSource('js', 'chrome/test/chromedriver/chrome',
  41                          options.directory, global_string_map)
  42
  43
  44 if __name__ == '__main__':
  45   sys.exit(main())