dgrove@google.com
4bc64b8c2b
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@7 260f80e4-7a28-3924-810f-c04153c831b5
140 lines
3.9 KiB
Python
140 lines
3.9 KiB
Python
#!/usr/bin/python2.6
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#
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# Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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# for details. All rights reserved. Use of this source code is governed by a
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# BSD-style license that can be found in the LICENSE file.
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"""Generates Css.dart from css property definitions defined in WebKit."""
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import tempfile, os
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COMMENT_LINE_PREFIX = ' * '
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SOURCE_PATH = 'Source/WebCore/css/CSSPropertyNames.in'
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INPUT_URL = 'http://trac.webkit.org/export/latest/trunk/%s' % SOURCE_PATH
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OUTPUT_FILE = '../Css.dart'
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def main():
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_, css_names_file = tempfile.mkstemp('.CSSPropertyNames.in')
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try:
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if os.system('wget %s -O %s' % (INPUT_URL, css_names_file)):
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return 1
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generate_code(css_names_file)
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print 'Successfully generated ' + OUTPUT_FILE
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finally:
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os.remove(css_names_file)
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def camelCaseName(name):
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"""Convert a CSS property name to a lowerCamelCase name."""
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name = name.replace('-webkit-', '')
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words = []
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for word in name.split('-'):
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if words:
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words.append(word.title())
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else:
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words.append(word)
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return ''.join(words)
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def generate_code(input_path):
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data = open(input_path).readlines()
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# filter CSSPropertyNames.in to only the properties
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data = [d[:-1] for d in data
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if len(d) > 1
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and not d.startswith('#')
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and not d.startswith('//')
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and not '=' in d]
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output_file = open(OUTPUT_FILE, 'w')
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output_file.write("""
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// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// WARNING: Do not edit.
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// This file was generated by base/scripts/css_code_generator.py
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// Source of CSS properties:
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// %s
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// TODO(jacobr): add versions that take numeric values in px, miliseconds, etc.
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/**
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* Browser neutral and typesafe class for setting CSS styles from Dart.
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* This class smoothes over browser differences.
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*/
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class Css {
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static String _cachedBrowserPrefix;
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final CSSStyleDeclaration raw;
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Css(CSSStyleDeclaration this.raw) { }
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static String get _browserPrefix() {
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if (_cachedBrowserPrefix === null) {
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if (Device.isFirefox) {
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_cachedBrowserPrefix = '-moz-';
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} else {
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_cachedBrowserPrefix = '-webkit-';
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}
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// TODO(jacobr): support IE 9.0 and Opera as well.
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}
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return _cachedBrowserPrefix;
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}
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""".lstrip() % SOURCE_PATH);
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static_method_lines = [];
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property_lines = [];
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seen = set()
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for prop in sorted(data, key=lambda p: camelCaseName(p)):
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camel_case_name = camelCaseName(prop)
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upper_camel_case_name = camel_case_name[0].upper() + camel_case_name[1:];
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css_name = prop.replace('-webkit-', '${_browserPrefix}')
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base_css_name = prop.replace('-webkit-', '')
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if base_css_name in seen:
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continue
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seen.add(base_css_name)
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comment = ' /** %s the value of "' + base_css_name + '" */'
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static_method_lines.append('\n');
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static_method_lines.append(comment % 'Gets')
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static_method_lines.append("""
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static String get%s(CSSStyleDeclaration style) {
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return style.getPropertyValue('%s');
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}
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""" % (upper_camel_case_name, css_name))
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static_method_lines.append(comment % 'Sets')
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static_method_lines.append("""
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static void set%s(CSSStyleDeclaration style, String value) {
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style.setProperty('%s', value, '');
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}
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""" % (upper_camel_case_name, css_name))
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property_lines.append('\n')
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property_lines.append(comment % 'Gets')
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property_lines.append("""
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String get %s() {
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return get%s(raw);
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}
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""" % (camel_case_name, upper_camel_case_name))
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property_lines.append(comment % 'Sets')
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property_lines.append("""
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void set %s(String value) {
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set%s(raw, value);
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}
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""" % (camel_case_name, upper_camel_case_name))
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output_file.write(''.join(static_method_lines));
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output_file.write(''.join(property_lines));
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output_file.write('}\n')
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output_file.close()
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if __name__ == '__main__':
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main()
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