#!/usr/bin/env python3
# Copyright 2014 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Embeds standalone JavaScript snippets in C++ code.
The script requires the Source/devtools/front_end/emulated_devices/module.json
file from Blink that lists the known mobile devices to be passed in as the only
argument. The list of known devices will be written to a C-style string to be
parsed with JSONReader.
"""
import ast
import json
import optparse
import os
import sys
import chrome_paths
import cpp_source
_EMULATED_DEVICES_BEGIN = '// DEVICE-LIST-BEGIN'
_EMULATED_DEVICES_END = '// DEVICE-LIST-END'
_EMULATED_DEVICES_IF = '/* DEVICE-LIST-IF-JS */'
_EMULATED_DEVICES_ELSE = '/* DEVICE-LIST-ELSE'
_EMULATED_DEVICES_ENDIF = 'DEVICE-LIST-END-IF */'
def main():
parser = optparse.OptionParser()
parser.add_option(
'', '--version-file', type='string',
default=os.path.join(chrome_paths.GetSrc(), 'chrome', 'VERSION'),
help='Path to Chrome version file')
parser.add_option(
'', '--directory', type='string', default='.',
help='Path to directory where the cc/h files should be created')
options, args = parser.parse_args()
# The device userAgent string may contain '%s', which should be replaced with
# current Chrome version. First we read the version file.
version_parts = ['MAJOR', 'MINOR', 'BUILD', 'PATCH']
version = []
version_file = open(options.version_file, 'r', encoding='utf-8')
for part in version_parts:
# The version file should have 4 lines, with format like MAJOR=63
components = version_file.readline().split('=')
if len(components) != 2 or components[0].strip() != part:
print('Bad version file')
return 1
version.append(components[1].strip())
# Join parts of version together using '.' as separator
version = '.'.join(version)
devices = {}
file_name = args[0]
with open(file_name, 'r', encoding='utf-8') as f:
data = f.read()
# Extract the list from the source file.
begin_position = data.find(_EMULATED_DEVICES_BEGIN)
end_position = data.find(_EMULATED_DEVICES_END)
if begin_position == -1 or end_position == -1:
print('Could not find list of emulatedDevices in %s' % file_name)
return 1
begin_position += len(_EMULATED_DEVICES_BEGIN)
list_string = '[' + data[begin_position:end_position] + ']'
# Only used the non-localized strings in the list.
if_position = list_string.find(_EMULATED_DEVICES_IF)
while if_position != -1:
else_position = list_string.find(_EMULATED_DEVICES_ELSE)
if else_position == -1:
print('Could not find list of emulatedDevices in %s' % file_name)
return 1
else_position += len(_EMULATED_DEVICES_ELSE)
list_string = list_string[0:if_position] + list_string[else_position::]
endif_position = list_string.find(_EMULATED_DEVICES_ENDIF)
if endif_position == -1:
print('Could not find list of emulatedDevices in %s' % file_name)
return 1
list_string = list_string[0:endif_position] + \
list_string[endif_position + len(_EMULATED_DEVICES_ENDIF)::]
if_position = list_string.find(_EMULATED_DEVICES_IF)
# Do a bunch of substitutions to get something parseable by Python.
list_string = list_string.replace('true', 'True')
list_string = list_string.replace('false', 'False')
emulated_devices = ast.literal_eval(list_string)
for device in emulated_devices:
title = device['title']
titles = [title]
# For 'iPhone 6/7/8', also add ['iPhone 6', 'iPhone 7', 'iPhone 8'] for
# backward compatibility.
if '/' in title:
words = title.split()
for i in range(len(words)):
if '/' in words[i]:
# Only support one word containing '/'
break
tokens = words[i].split('/')
for token in tokens:
words[i] = token
titles.append(' '.join(words))
for title in titles:
mobile_emulation = {
'userAgent': device['user-agent'],
'deviceMetrics': {
'width': device['screen']['vertical']['width'],
'height': device['screen']['vertical']['height'],
'deviceScaleFactor': device['screen']['device-pixel-ratio'],
'touch': 'touch' in device['capabilities'],
'mobile': 'mobile' in device['capabilities'],
},
'type': device['type']
}
if 'user-agent-metadata' in device:
client_hints = device['user-agent-metadata']
mobile_emulation['clientHints'] = {
'architecture': client_hints['architecture'],
'bitness': '',
'platform': client_hints['platform'],
'platformVersion': client_hints['platformVersion'],
'model': client_hints['model'],
'mobile': client_hints['mobile'],
'wow64': False,
}
devices[title] = mobile_emulation
output_dir = 'chrome/test/chromedriver/chrome'
cpp_source.WriteSource('mobile_device_list',
output_dir,
options.directory,
{'kMobileDevices': json.dumps(devices)})
if __name__ == '__main__':
sys.exit(main())
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