graffiti (prealpha MVP)

HTML/CSS engine for node.js and deno.

Currently, it is just my hobby/research project and it's not yet intended for any use.

Discord | Quickstart repo

---

const Counter = () => {
  const [count, setCount] = React.useState(0)
  const dec = () => setCount(count - 1)
  const inc = () => setCount(count + 1)

  return (
    <div style={styles.counter}>
      <span>{count}</span>

      <div style={{ ...styles.bar, width: count * 5 }} />

      <div style={styles.buttons}>
        <button onClick={dec}>--</button>
        <button onClick={inc}>++</button>
      </div>
    </div>
  )
}

const styles = {
  counter: {
    flex: 1,
    padding: 20,
    justifyContent: 'space-between'
  },

  bar: {
    backgroundColor: '#ff0000',
    height: 20
  },

  buttons: {
    flexDirection: 'row',
    justifyContent: 'space-between'
  }
}

---

Current scope

• single-window, single-thread, single-script (global document), nodejs-only (N-API)
• subset of DOM needed by major JS frameworks (preact-only for now)
• subset of CSS and CSSOM for CSS-in-JS (goober-only for now)
• block/flexbox layout (no floats)
• no index.html, no runtime behavior (no <script>, no <link>, ...)
• no HMR, no live-reload (but nodemon works)
• publish to npm (until then, you can npm i github:cztomsik/graffiti)
• and even then, it will be just a toy

Goals & philosophy

• simplicity > number of features
• support "reasonable subset" of DOM/CSS so we don't need to learn anything new
• fit nicely into the existing node.js ecosystem (lib is better than framework)
• it has to be fun (for me, sorry)

Hacking

To work on the project, you will need recent Zig (0.11.0-dev.3731+c6e2e1ae4) and system-installed GLFW3.3 with headers (brew install pkg-config glfw).

git clone ...
cd ...
git submodule init
git submodule update
npm i
zig build
node examples/hello.js

License

The code in this repository is licensed under the MIT license, except for the HTML parser in lib/core/htmlparser.js which is based on the work of John Resig (MIT), Juriy "kangax" Zaytsev (MIT) and Erik Arvidsson (MPL).

You are also bound by the licenses of all the transitive dependencies:

• Zig (MIT)
• GLFW (ZLIB)
• nanovg-zig (ZLIB)
  • nanovg (ZLIB)
  • fontstash (ZLIB)
  • stb_truetype (MIT)
• Roboto font (Apache 2.0)

Contributing

If you are interested in contributing, please join the Discord channel to discuss your ideas before submitting a pull request. Unexpected merge requests are likely to be rejected.

Thank you for your interest :)