wasm-yoga

This is wasm-yoga, a Yoga Layout prebuilt version using WebAssembly, built using Emscripten.

Install

Run npm install @lazarv/wasm-yoga.

Usage

TypeScript type definition included.

import wasmYoga from '@lazarv/wasm-yoga';

async function useYoga(){
	const Yoga = await wasmYoga();
	const node = Yoga.Node.createDefault();
	node.setAlignItems(Yoga.YGAlignCenter);
	node.calculateLayout(100, 100, Yoga.YGDirectionLTR);
	// etc...
}

See examples directory for more examples, usage in browser (index.html) and node.js (wasm.js).

Build

Before any build, fetch the yoga source included as a git submodule and run npm install. wasm-yoga uses nbind C source and minimal nbind Emscripten JavaScript library.

git submodule init
git submodule update

In order to build wasm-yoga yourself, you will need Emscripten and cmake. For more information about setting up Emscripten, see the getting started guide.

To build on your local machine, just use npm run build.

Run these commands to build the project manually, step by step. Result yoga.js and yoga.wasm will be available in the dist directory.

mkdir build
cd build
emcmake cmake ..
emmake make

Building using Docker

wasm-yoga can also be built with Docker. This offers many advantages (keeping its native environment clean, portability, etc.). To do this, you just have to install Docker and run:

docker-compose build  # to create the Docker image
docker-compose up     # to create the Docker container and build wasm-yoga

If you want to add arguments to cmake, you have to edit the docker-compose.yml file.