Reason Styled System

styled-system in reason!

<Text px=3 size=80> {"hummussss" |> React.string} </Text>

Status: WIP

Use at your own risk.

About this Library

This is a proof-of-concept for a styled-system type of API in reason-react.

styled-system allows for, as the author states, "rapid UI development", and this is true in reasonml also - perhapes even more so. If typing is your bottleneck in reasonml-based iterative product design, you may benefit from this library, which allows you to pre-define your font and spacing scale units, so you can reference them by scale index, as opposed to explicitly. This kind of abstraction comes with a number of benefits.

Beyond reason-react, reason-styled-system is dependency-free, and will likely stay that way.

Installation

1. install from github:

npm i github.com:hew/reason-styled-system

2. Add the library to your bsconfig.json:

"bs-dependencies": ["reason-styled-system"],

API

/* System.re */
module Scale = {
  let space = [|2, 4, 8, 16, 32|];
  let font = [|2, 4, 8, 16, 32|]; // I'm lazy rn, but this would be different.
};

module Units = {
  let px = "px";
};

/* Primatives.re */
module Box =
  Box.BoxMaker({
    let scale = System.Scale.space;
    let domUnit = System.Units.px;
  });

module Text =
  Text.TextMaker({
    let scale = System.Scale.font;
    let domUnit = System.Units.px;
  });

/* In some component */
[@react.component]
let make = () => {
  Primatives.(
    <>
      /* All the elements follow the scale, up to five. Past five, the value is just passed
         explicitly. So here, 3 = 8px, and 80 = 80px */
      <Text px=3 size=80> {"Sup mang" |> React.string} </Text>
      
      /* Here, 2 = 4px, and 30 = 30px */
      <Box mt=2 px=30> <div /> </Box>
    </>
  );
};

Progress

Core

• space
• fontSize
• color
• width

Utility

• style
• is (text)
• responsive

Planned Others

• flex

Credits / Inspiration

• As this library is based on styled-system, most of the credits go to Brent Jackson and the maintainers of styled-system.
• https://github.com/hew/styled-functors