tools/cc-frame-viewer/ccfv.py

   1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4 import optparse
   5 import os
   6 import sys
   7
   8 def Init():
   9   chromeapp_path = os.path.abspath(
  10     os.path.join(os.path.dirname(__file__),
  11                  'third_party', 'py-chrome-app'))
  12   assert os.path.isdir(chromeapp_path)
  13   sys.path.append(chromeapp_path)
  14 Init()
  15
  16 import chromeapp
  17 from build import parse_deps
  18
  19 srcdir = os.path.abspath(os.path.join(os.path.dirname(__file__), "src"))
  20
  21 js_warning_message = """/**
  22 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
  23 // Use of this source code is governed by a BSD-style license that can be
  24 // found in the LICENSE file.
  25
  26 /* WARNING: This file is generated by ccfv.py
  27  *
  28  *        Do not edit directly.
  29  */
  30 """
  31
  32 css_warning_message = """/**
  33 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
  34  * Use of this source code is governed by a BSD-style license that can be
  35  * found in the LICENSE file. */
  36
  37 /* WARNING: This file is generated by ccfv.py
  38  *
  39  *        Do not edit directly.
  40  */
  41 """
  42
  43 py_warning_message = """#!/usr/bin/env python
  44 #
  45 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
  46 # Use of this source code is governed by a BSD-style license that can be
  47 # found in the LICENSE file. */
  48 #
  49 # WARNING: This file is generated by ccfv.py
  50 #
  51 #        Do not edit directly.
  52 #
  53 """
  54
  55 def _sopen(filename, mode):
  56   if filename != '-':
  57     return open(filename, mode)
  58   return os.fdopen(os.dup(sys.stdout.fileno()), 'w')
  59
  60 def generate_css(input_filenames):
  61   load_sequence = parse_deps.calc_load_sequence(input_filenames, srcdir)
  62
  63   style_sheet_chunks = [css_warning_message, '\n']
  64   for module in load_sequence:
  65     for style_sheet in module.style_sheets:
  66       style_sheet_chunks.append("""%s\n""" % style_sheet.contents)
  67
  68   return ''.join(style_sheet_chunks)
  69
  70 def generate_js(input_filenames):
  71   load_sequence = parse_deps.calc_load_sequence(input_filenames, srcdir)
  72
  73   js_chunks = [js_warning_message, '\n']
  74   js_chunks.append("window.FLATTENED = {};\n")
  75   js_chunks.append("window.FLATTENED_RAW_SCRIPTS = {};\n")
  76
  77   for module in load_sequence:
  78     js_chunks.append("window.FLATTENED['%s'] = true;\n" % module.name)
  79     for raw_script in module.dependent_raw_scripts:
  80       js_chunks.append("window.FLATTENED_RAW_SCRIPTS['%s'] = true;\n" %
  81                        raw_script.name)
  82
  83   raw_scripts_that_have_been_written = set()
  84   for module in load_sequence:
  85     for raw_script in module.dependent_raw_scripts:
  86       if raw_script.name in raw_scripts_that_have_been_written:
  87         continue
  88       js_chunks.append(raw_script.contents)
  89       js_chunks.append("\n")
  90       raw_scripts_that_have_been_written.add(raw_script.name)
  91     js_chunks.append(module.contents)
  92     js_chunks.append("\n")
  93
  94   return ''.join(js_chunks)
  95
  96 def Main(args):
  97   parser = optparse.OptionParser('%prog <filename>')
  98   parser.add_option('--debug', dest='debug_mode', action='store_true',
  99                     default=False, help='Enables debugging features')
 100   options, args = parser.parse_args(args)
 101   if len(args) != 1:
 102     parser.error("argument required")
 103   if not os.path.exists(args[0]):
 104     parser.error("%s does not exist" % args[0])
 105
 106   manifest_file = os.path.join(os.path.dirname(__file__),
 107                                'app', 'manifest.json')
 108   app = chromeapp.App('cc-frame-viewer',
 109                       manifest_file,
 110                       debug_mode=options.debug_mode)
 111
 112   def OnLoad(req):
 113     with open(args[0], 'r') as f:
 114       return f.read()
 115
 116   input_filenames = [os.path.join(srcdir, f)
 117                      for f in ['base.js', 'model_view.js']]
 118   view_js_file = os.path.join(os.path.dirname(__file__),
 119                               'app', 'model_view.js')
 120   view_css_file = os.path.join(os.path.dirname(__file__),
 121                               'app', 'model_view.css')
 122   with open(view_js_file, 'w') as f:
 123     f.write(generate_js(input_filenames))
 124   with open(view_css_file, 'w') as f:
 125     f.write(generate_css(input_filenames))
 126
 127   with chromeapp.AppInstance(app, []) as app_instance:
 128     app_instance.AddListener('load', OnLoad)
 129     try:
 130       return app_instance.Run()
 131     finally:
 132       if os.path.exists(view_js_file):
 133         os.unlink(view_js_file)
 134       if os.path.exists(view_css_file):
 135         os.unlink(view_css_file)
 136
 137
 138 if __name__ == "__main__":
 139   sys.exit(Main(sys.argv[1:]))