287 строки
11 KiB
Python
Executable File
287 строки
11 KiB
Python
Executable File
#!/usr/bin/env python
|
|
#
|
|
# 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.
|
|
|
|
"""Convert Android xml resources to API 14 compatible.
|
|
|
|
There are two reasons that we cannot just use API 17 attributes,
|
|
so we are generating another set of resources by this script.
|
|
|
|
1. paddingStart attribute can cause a crash on Galaxy Tab 2.
|
|
2. There is a bug that paddingStart does not override paddingLeft on
|
|
JB-MR1. This is fixed on JB-MR2.
|
|
|
|
Therefore, this resource generation script can be removed when
|
|
we drop the support for JB-MR1.
|
|
|
|
Please refer to http://crbug.com/235118 for the details.
|
|
"""
|
|
|
|
import optparse
|
|
import os
|
|
import re
|
|
import shutil
|
|
import sys
|
|
import xml.dom.minidom as minidom
|
|
|
|
from util import build_utils
|
|
|
|
# Note that we are assuming 'android:' is an alias of
|
|
# the namespace 'http://schemas.android.com/apk/res/android'.
|
|
|
|
GRAVITY_ATTRIBUTES = ('android:gravity', 'android:layout_gravity')
|
|
|
|
# Almost all the attributes that has "Start" or "End" in
|
|
# its name should be mapped.
|
|
ATTRIBUTES_TO_MAP = {'paddingStart' : 'paddingLeft',
|
|
'drawableStart' : 'drawableLeft',
|
|
'layout_alignStart' : 'layout_alignLeft',
|
|
'layout_marginStart' : 'layout_marginLeft',
|
|
'layout_alignParentStart' : 'layout_alignParentLeft',
|
|
'layout_toStartOf' : 'layout_toLeftOf',
|
|
'paddingEnd' : 'paddingRight',
|
|
'drawableEnd' : 'drawableRight',
|
|
'layout_alignEnd' : 'layout_alignRight',
|
|
'layout_marginEnd' : 'layout_marginRight',
|
|
'layout_alignParentEnd' : 'layout_alignParentRight',
|
|
'layout_toEndOf' : 'layout_toRightOf'}
|
|
|
|
ATTRIBUTES_TO_MAP = dict(['android:' + k, 'android:' + v] for k, v
|
|
in ATTRIBUTES_TO_MAP.iteritems())
|
|
|
|
ATTRIBUTES_TO_MAP_REVERSED = dict([v,k] for k, v
|
|
in ATTRIBUTES_TO_MAP.iteritems())
|
|
|
|
|
|
def IterateXmlElements(node):
|
|
"""minidom helper function that iterates all the element nodes.
|
|
Iteration order is pre-order depth-first."""
|
|
if node.nodeType == node.ELEMENT_NODE:
|
|
yield node
|
|
for child_node in node.childNodes:
|
|
for child_node_element in IterateXmlElements(child_node):
|
|
yield child_node_element
|
|
|
|
|
|
def WarnIfDeprecatedAttribute(name, value, filename):
|
|
"""print a warning message if the given attribute is deprecated."""
|
|
if name in ATTRIBUTES_TO_MAP_REVERSED:
|
|
print >> sys.stderr, ('warning: ' + filename + ' should use ' +
|
|
ATTRIBUTES_TO_MAP_REVERSED[name] +
|
|
' instead of ' + name)
|
|
elif name in GRAVITY_ATTRIBUTES and ('left' in value or 'right' in value):
|
|
print >> sys.stderr, ('warning: ' + filename +
|
|
' should use start/end instead of left/right for ' +
|
|
name)
|
|
|
|
|
|
def WriteDomToFile(dom, filename):
|
|
"""Write the given dom to filename."""
|
|
build_utils.MakeDirectory(os.path.dirname(filename))
|
|
with open(filename, 'w') as f:
|
|
dom.writexml(f, '', ' ', '\n', encoding='utf-8')
|
|
|
|
|
|
def HasStyleResource(dom):
|
|
"""Return True if the dom is a style resource, False otherwise."""
|
|
root_node = IterateXmlElements(dom).next()
|
|
return bool(root_node.nodeName == 'resources' and
|
|
list(root_node.getElementsByTagName('style')))
|
|
|
|
|
|
def ErrorIfStyleResourceExistsInDir(input_dir):
|
|
"""If a style resource is in input_dir, exist with an error message."""
|
|
for input_filename in build_utils.FindInDirectory(input_dir, '*.xml'):
|
|
dom = minidom.parse(input_filename)
|
|
if HasStyleResource(dom):
|
|
raise Exception('error: style file ' + input_filename +
|
|
' should be under ' + input_dir +
|
|
'-v17 directory. Please refer to crbug.com/243952 '
|
|
'for the details.')
|
|
|
|
|
|
def GenerateV14LayoutResourceDom(dom, filename):
|
|
"""Convert layout resource to API 14 compatible layout resource.
|
|
|
|
Args:
|
|
dom: parsed minidom object to be modified.
|
|
filename: file name to display in case we print warnings.
|
|
Returns:
|
|
True if dom is modified, False otherwise.
|
|
"""
|
|
is_modified = False
|
|
|
|
# Iterate all the elements' attributes to find attributes to convert.
|
|
for element in IterateXmlElements(dom):
|
|
for name, value in list(element.attributes.items()):
|
|
# Convert any API 17 Start/End attributes to Left/Right attributes.
|
|
# For example, from paddingStart="10dp" to paddingLeft="10dp"
|
|
# Note: gravity attributes are not necessary to convert because
|
|
# start/end values are backward-compatible. Explained at
|
|
# https://plus.sandbox.google.com/+RomanNurik/posts/huuJd8iVVXY?e=Showroom
|
|
if name in ATTRIBUTES_TO_MAP:
|
|
element.setAttribute(ATTRIBUTES_TO_MAP[name], value)
|
|
del element.attributes[name]
|
|
is_modified = True
|
|
else:
|
|
WarnIfDeprecatedAttribute(name, value, filename)
|
|
|
|
return is_modified
|
|
|
|
|
|
def GenerateV14StyleResourceDom(dom, filename):
|
|
"""Convert style resource to API 14 compatible style resource.
|
|
|
|
Args:
|
|
dom: parsed minidom object to be modified.
|
|
filename: file name to display in case we print warnings.
|
|
"""
|
|
for style_element in dom.getElementsByTagName('style'):
|
|
for item_element in style_element.getElementsByTagName('item'):
|
|
name = item_element.attributes['name'].value
|
|
value = item_element.childNodes[0].nodeValue
|
|
if name in ATTRIBUTES_TO_MAP:
|
|
item_element.attributes['name'].value = ATTRIBUTES_TO_MAP[name]
|
|
else:
|
|
WarnIfDeprecatedAttribute(name, value, filename)
|
|
|
|
|
|
def GenerateV14LayoutResource(input_filename, output_v14_filename,
|
|
output_v17_filename):
|
|
"""Convert API 17 layout resource to API 14 compatible layout resource.
|
|
|
|
It's mostly a simple replacement, s/Start/Left s/End/Right,
|
|
on the attribute names.
|
|
If the generated resource is identical to the original resource,
|
|
don't do anything. If not, write the generated resource to
|
|
output_v14_filename, and copy the original resource to output_v17_filename.
|
|
"""
|
|
dom = minidom.parse(input_filename)
|
|
is_modified = GenerateV14LayoutResourceDom(dom, input_filename)
|
|
|
|
if is_modified:
|
|
# Write the generated resource.
|
|
WriteDomToFile(dom, output_v14_filename)
|
|
|
|
# Copy the original resource.
|
|
build_utils.MakeDirectory(os.path.dirname(output_v17_filename))
|
|
shutil.copy2(input_filename, output_v17_filename)
|
|
|
|
|
|
def GenerateV14StyleResource(input_filename, output_v14_filename):
|
|
"""Convert API 17 style resources to API 14 compatible style resource.
|
|
|
|
Write the generated style resource to output_v14_filename.
|
|
It's mostly a simple replacement, s/Start/Left s/End/Right,
|
|
on the attribute names.
|
|
"""
|
|
dom = minidom.parse(input_filename)
|
|
GenerateV14StyleResourceDom(dom, input_filename)
|
|
|
|
# Write the generated resource.
|
|
WriteDomToFile(dom, output_v14_filename)
|
|
|
|
|
|
def GenerateV14LayoutResourcesInDir(input_dir, output_v14_dir, output_v17_dir):
|
|
"""Convert layout resources to API 14 compatible resources in input_dir."""
|
|
for input_filename in build_utils.FindInDirectory(input_dir, '*.xml'):
|
|
rel_filename = os.path.relpath(input_filename, input_dir)
|
|
output_v14_filename = os.path.join(output_v14_dir, rel_filename)
|
|
output_v17_filename = os.path.join(output_v17_dir, rel_filename)
|
|
GenerateV14LayoutResource(input_filename, output_v14_filename,
|
|
output_v17_filename)
|
|
|
|
|
|
def GenerateV14StyleResourcesInDir(input_dir, output_v14_dir):
|
|
"""Convert style resources to API 14 compatible resources in input_dir."""
|
|
for input_filename in build_utils.FindInDirectory(input_dir, '*.xml'):
|
|
rel_filename = os.path.relpath(input_filename, input_dir)
|
|
output_v14_filename = os.path.join(output_v14_dir, rel_filename)
|
|
GenerateV14StyleResource(input_filename, output_v14_filename)
|
|
|
|
|
|
def ParseArgs():
|
|
"""Parses command line options.
|
|
|
|
Returns:
|
|
An options object as from optparse.OptionsParser.parse_args()
|
|
"""
|
|
parser = optparse.OptionParser()
|
|
parser.add_option('--res-dir',
|
|
help='directory containing resources '
|
|
'used to generate v14 compatible resources')
|
|
parser.add_option('--res-v14-compatibility-dir',
|
|
help='output directory into which '
|
|
'v14 compatible resources will be generated')
|
|
parser.add_option('--stamp', help='File to touch on success')
|
|
|
|
options, args = parser.parse_args()
|
|
|
|
if args:
|
|
parser.error('No positional arguments should be given.')
|
|
|
|
# Check that required options have been provided.
|
|
required_options = ('res_dir', 'res_v14_compatibility_dir')
|
|
build_utils.CheckOptions(options, parser, required=required_options)
|
|
return options
|
|
|
|
|
|
def main(argv):
|
|
options = ParseArgs()
|
|
|
|
build_utils.DeleteDirectory(options.res_v14_compatibility_dir)
|
|
build_utils.MakeDirectory(options.res_v14_compatibility_dir)
|
|
|
|
for name in os.listdir(options.res_dir):
|
|
if not os.path.isdir(os.path.join(options.res_dir, name)):
|
|
continue
|
|
|
|
dir_pieces = name.split('-')
|
|
resource_type = dir_pieces[0]
|
|
qualifiers = dir_pieces[1:]
|
|
|
|
api_level_qualifier_index = -1
|
|
api_level_qualifier = ''
|
|
for index, qualifier in enumerate(qualifiers):
|
|
if re.match('v[0-9]+$', qualifier):
|
|
api_level_qualifier_index = index
|
|
api_level_qualifier = qualifier
|
|
break
|
|
|
|
# Android pre-v17 API doesn't support RTL. Skip.
|
|
if 'ldrtl' in qualifiers:
|
|
continue
|
|
|
|
# We also need to copy the original v17 resource to *-v17 directory
|
|
# because the generated v14 resource will hide the original resource.
|
|
input_dir = os.path.join(options.res_dir, name)
|
|
output_v14_dir = os.path.join(options.res_v14_compatibility_dir, name)
|
|
output_v17_dir = os.path.join(options.res_v14_compatibility_dir, name +
|
|
'-v17')
|
|
|
|
# We only convert layout resources under layout*/, xml*/,
|
|
# and style resources under values*/.
|
|
if resource_type in ('layout', 'xml'):
|
|
if not api_level_qualifier:
|
|
GenerateV14LayoutResourcesInDir(input_dir, output_v14_dir,
|
|
output_v17_dir)
|
|
elif resource_type == 'values':
|
|
if api_level_qualifier == 'v17':
|
|
output_qualifiers = qualifiers[:]
|
|
del output_qualifiers[api_level_qualifier_index]
|
|
output_v14_dir = os.path.join(options.res_v14_compatibility_dir,
|
|
'-'.join([resource_type] +
|
|
output_qualifiers))
|
|
GenerateV14StyleResourcesInDir(input_dir, output_v14_dir)
|
|
elif not api_level_qualifier:
|
|
ErrorIfStyleResourceExistsInDir(input_dir)
|
|
|
|
if options.stamp:
|
|
build_utils.Touch(options.stamp)
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main(sys.argv))
|
|
|