fzingg / egui-wasm-demo

egui-wasm-demo

You can compile your app natively or for the web.

Learning about egui

src/app.rs contains a simple example app. This is just to give some inspiration - most of it can be removed if you like.

The official egui docs are at https://docs.rs/egui. If you prefer watching a video introduction, check out https://www.youtube.com/watch?v=NtUkr_z7l84. For inspiration, check out the the egui web demo and follow the links in it to its source code.

Testing locally

Make sure you are using the latest version of stable rust by running rustup update.

cargo run --release

On Linux you need to first run:

sudo apt-get install libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev libxkbcommon-dev libssl-dev

On Fedora Rawhide you need to run:

dnf install clang clang-devel clang-tools-extra libxkbcommon-devel pkg-config openssl-devel libxcb-devel fontconfig-devel

Web Locally

You can compile your app to WASM and publish it as a web page.

We use Trunk to build for web target.

1. Install Trunk with cargo install --locked trunk.
2. Run trunk serve to build and serve on http://127.0.0.1:8080. Trunk will rebuild automatically if you edit the project.
3. Open http://127.0.0.1:8080/index.html#dev in a browser. See the warning below.

assets/sw.js script will try to cache our app, and loads the cached version when it cannot connect to server allowing your app to work offline (like PWA). appending #dev to index.html will skip this caching, allowing us to load the latest builds during development.

Web Deploy

1. Just run trunk build --release.
2. It will generate a dist directory as a "static html" website