[cc] Initial checkin of cc-frame-viewer

tools/cc-frame-viewer/ccfv.py

+# Copyright (c) 2012 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.
+import optparse
+import os
+import sys
+
+def Init():
+  chromeapp_path = os.path.abspath(
+    os.path.join(os.path.dirname(__file__),
+                 'third_party', 'py-chrome-app'))
+  assert os.path.isdir(chromeapp_path)
+  sys.path.append(chromeapp_path)
+Init()
+
+import chromeapp
+from build import parse_deps
+
+srcdir = os.path.abspath(os.path.join(os.path.dirname(__file__), "src"))
+
+js_warning_message = """/**
+// Copyright (c) 2012 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.
+
+/* WARNING: This file is generated by ccfv.py
+ *
+ *        Do not edit directly.
+ */
+"""
+
+css_warning_message = """/**
+/* Copyright (c) 2012 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. */
+
+/* WARNING: This file is generated by ccfv.py
+ *
+ *        Do not edit directly.
+ */
+"""
+
+py_warning_message = """#!/usr/bin/env python
+#
+# Copyright (c) 2012 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. */
+#
+# WARNING: This file is generated by ccfv.py
+#
+#        Do not edit directly.
+#
+"""
+
+def _sopen(filename, mode):
+  if filename != '-':
+    return open(filename, mode)
+  return os.fdopen(os.dup(sys.stdout.fileno()), 'w')
+
+def generate_css(input_filenames):
+  load_sequence = parse_deps.calc_load_sequence(input_filenames, srcdir)
+
+  style_sheet_chunks = [css_warning_message, '\n']
+  for module in load_sequence:
+    for style_sheet in module.style_sheets:
+      style_sheet_chunks.append("""%s\n""" % style_sheet.contents)
+
+  return ''.join(style_sheet_chunks)
+
+def generate_js(input_filenames):
+  load_sequence = parse_deps.calc_load_sequence(input_filenames, srcdir)
+
+  js_chunks = [js_warning_message, '\n']
+  js_chunks.append("window.FLATTENED = {};\n")
+  js_chunks.append("window.FLATTENED_RAW_SCRIPTS = {};\n")
+
+  for module in load_sequence:
+    js_chunks.append("window.FLATTENED['%s'] = true;\n" % module.name)
+    for raw_script in module.dependent_raw_scripts:
+      js_chunks.append("window.FLATTENED_RAW_SCRIPTS['%s'] = true;\n" %
+                       raw_script.name)
+
+  raw_scripts_that_have_been_written = set()
+  for module in load_sequence:
+    for raw_script in module.dependent_raw_scripts:
+      if raw_script.name in raw_scripts_that_have_been_written:
+        continue
+      js_chunks.append(raw_script.contents)
+      js_chunks.append("\n")
+      raw_scripts_that_have_been_written.add(raw_script.name)
+    js_chunks.append(module.contents)
+    js_chunks.append("\n")
+
+  return ''.join(js_chunks)
+
+def Main(args):
+  parser = optparse.OptionParser('%prog <filename>')
+  parser.add_option('--debug', dest='debug_mode', action='store_true',
+                    default=False, help='Enables debugging features')
+  options, args = parser.parse_args(args)
+  if len(args) != 1:
+    parser.error("argument required")
+  if not os.path.exists(args[0]):
+    parser.error("%s does not exist" % args[0])
+
+  manifest_file = os.path.join(os.path.dirname(__file__),
+                               'app', 'manifest.json')
+  app = chromeapp.App('cc-frame-viewer',
+                      manifest_file,
+                      debug_mode=options.debug_mode)
+
+  def OnLoad(req):
+    with open(args[0], 'r') as f:
+      return f.read()
+
+  input_filenames = [os.path.join(srcdir, f)
+                     for f in ['base.js', 'model_view.js']]
+  view_js_file = os.path.join(os.path.dirname(__file__),
+                              'app', 'model_view.js')
+  view_css_file = os.path.join(os.path.dirname(__file__),
+                              'app', 'model_view.css')
+  with open(view_js_file, 'w') as f:
+    f.write(generate_js(input_filenames))
+  with open(view_css_file, 'w') as f:
+    f.write(generate_css(input_filenames))
+
+  with chromeapp.AppInstance(app, []) as app_instance:
+    app_instance.AddListener('load', OnLoad)
+    try:
+      return app_instance.Run()
+    finally:
+      if os.path.exists(view_js_file):
+        os.unlink(view_js_file)
+      if os.path.exists(view_css_file):
+        os.unlink(view_css_file)
+
+
+if __name__ == "__main__":
+  sys.exit(Main(sys.argv[1:]))