flutter/dev/tools/gen_defaults
Christopher Fujino 459391708e
[flutter_tools] Pin package:archive and manual roll (#115662)
* add package:archive to pins

* roll
2022-11-18 19:28:10 +00:00
..
bin M3 Segmented Button widget (#113723) 2022-11-11 22:13:57 -08:00
data Updated tokens to v0.141 (#115298) 2022-11-15 10:33:19 -08:00
lib Add Material 3 support for Slider - Part 2 (#114624) 2022-11-17 18:33:16 +00:00
test Refactor gen_defaults to support multiple generated code blocks in the same file independently. (#107278) 2022-07-10 17:17:09 -07:00
pubspec.yaml [flutter_tools] Pin package:archive and manual roll (#115662) 2022-11-18 19:28:10 +00:00
README.md Refactor gen_defaults to support multiple generated code blocks in the same file independently. (#107278) 2022-07-10 17:17:09 -07:00

Token Defaults Generator

Script that generates widget component theme data defaults based on the Material Token database. These tokens were extracted into a JSON file from an internal Google database.

Usage

Run this program from the root of the git repository:

dart dev/tools/gen_defaults/bin/gen_defaults.dart

Templates

There is a template file for every component that needs defaults from the token database. These templates are implemented as subclasses of TokenTemplate. This base class provides some utilities and a structure for adding a new block of generated code to the bottom of a given file.

Templates need to override the generate method to provide the generated code block as a string. The tokens are represented as a Map<String, dynamic> that is loaded from data/material-tokens.json. Templates can look up whatever properties are needed in this structure to provide the properties needed for the component.

See lib/fab_template.dart for an example that generates defaults for the Floating Action Button.