| #!/usr/bin/env python |
| # Copyright 2016 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 json5_generator |
| import template_expander |
| |
| from collections import namedtuple |
| from core.css import css_properties |
| |
| |
| class PropertyClassData( |
| namedtuple( |
| 'PropertyClassData', |
| 'enum_key,enum_value,property_id,classname,namespace_group,filename' |
| )): |
| pass |
| |
| |
| class CSSPropertyInstancesWriter(json5_generator.Writer): |
| def __init__(self, json5_file_paths, output_dir): |
| super(CSSPropertyInstancesWriter, self).__init__([], output_dir) |
| self._input_files = json5_file_paths |
| self._outputs = { |
| 'css_property_instances.h': |
| self.generate_property_instances_header, |
| 'css_property_instances.cc': |
| self.generate_property_instances_implementation |
| } |
| # These files are no longer generated. If the files are present from |
| # a previous build, we remove them. This avoids accidentally #including |
| # a stale generated header. |
| self._cleanup = set([ |
| 'css_property.cc', 'css_property.h', 'css_unresolved_property.cc', |
| 'css_unresolved_property.h' |
| ]) |
| |
| self._css_properties = css_properties.CSSProperties(json5_file_paths) |
| |
| properties = self._css_properties.longhands + self._css_properties.shorthands |
| aliases = self._css_properties.aliases |
| |
| # Lists of PropertyClassData. |
| self._property_classes_by_id = list(map(self.get_class, properties)) |
| self._alias_classes_by_id = list(map(self.get_class, aliases)) |
| |
| # Sort by enum value. |
| self._property_classes_by_id.sort(key=lambda t: t.enum_value) |
| self._alias_classes_by_id.sort(key=lambda t: t.enum_value) |
| |
| def get_class(self, property_): |
| """Gets the automatically |
| generated class name for a property. |
| Args: |
| property_: A single property from CSSProperties.properties() |
| Returns: |
| The name to use for the property class. |
| """ |
| namespace_group = 'Shorthand' if property_['longhands'] else 'Longhand' |
| return PropertyClassData( |
| enum_key=property_['enum_key'], |
| enum_value=property_['enum_value'], |
| property_id=property_['property_id'], |
| classname=property_['name'].to_upper_camel_case(), |
| namespace_group=namespace_group, |
| filename=property_['name'].to_snake_case()) |
| |
| @property |
| def css_properties(self): |
| return self._css_properties |
| |
| @template_expander.use_jinja( |
| 'core/css/properties/templates/css_property_instances.h.tmpl') |
| def generate_property_instances_header(self): |
| return { |
| 'input_files': self._input_files, |
| 'property_classes_by_property_id': self._property_classes_by_id, |
| 'alias_classes_by_property_id': self._alias_classes_by_id, |
| } |
| |
| @template_expander.use_jinja( |
| 'core/css/properties/templates/css_property_instances.cc.tmpl') |
| def generate_property_instances_implementation(self): |
| return { |
| 'input_files': self._input_files, |
| 'property_classes_by_property_id': self._property_classes_by_id, |
| 'alias_classes_by_property_id': self._alias_classes_by_id, |
| } |
| |
| |
| if __name__ == '__main__': |
| json5_generator.Maker(CSSPropertyInstancesWriter).main() |
