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https://github.com/DioxusLabs/dioxus
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112 lines
2.7 KiB
Markdown
112 lines
2.7 KiB
Markdown
<div align="center">
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<h1>Fermi ⚛</h1>
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<p>
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<strong>Atom-based global state management solution for Dioxus</strong>
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</p>
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</div>
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<div align="center">
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<!-- Crates version -->
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<a href="https://crates.io/crates/fermi">
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<img src="https://img.shields.io/crates/v/fermi.svg?style=flat-square"
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alt="Crates.io version" />
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</a>
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<!-- Downloads -->
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<a href="https://crates.io/crates/fermi">
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<img src="https://img.shields.io/crates/d/fermi.svg?style=flat-square"
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alt="Download" />
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</a>
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<!-- docs -->
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<a href="https://docs.rs/fermi">
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<img src="https://img.shields.io/badge/docs-latest-blue.svg?style=flat-square"
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alt="docs.rs docs" />
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</a>
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<!-- CI -->
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<a href="https://github.com/DioxusLabs/dioxus/actions">
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<img src="https://github.com/dioxuslabs/dioxus/actions/workflows/main.yml/badge.svg"
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alt="CI status" />
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</a>
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</div>
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---
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Fermi is a global state management solution for Dioxus that's as easy as `use_state`.
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Inspired by atom-based state management solutions, all state in Fermi starts as an `atom`:
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```rust, ignore
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static NAME: Atom<&str> = Atom(|_| "Dioxus");
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```
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From anywhere in our app, we can read the value of our atom:
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```rust, ignore
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fn NameCard(cx: Scope) -> Element {
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let name = use_read(cx, &NAME);
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cx.render(rsx!{ h1 { "Hello, {name}"} })
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}
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```
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We can also set the value of our atom, also from anywhere in our app:
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```rust, ignore
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fn NameCard(cx: Scope) -> Element {
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let set_name = use_set(cx, &NAME);
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cx.render(rsx!{
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button {
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onclick: move |_| set_name("Fermi"),
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"Set name to fermi"
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}
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})
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}
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```
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If needed, we can update the atom's value, based on itself:
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```rust, ignore
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static COUNT: Atom<i32> = Atom(|_| 0);
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fn Counter(cx: Scope) -> Element {
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let mut count = use_atom_state(cx, &COUNT);
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cx.render(rsx!{
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p {
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"{count}"
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}
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button {
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onclick: move |_| count += 1,
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"Increment counter"
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}
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})
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}
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```
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It's that simple!
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## Installation
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Fermi is currently under construction, so you have to use the `master` branch to get started.
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```toml
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[dependencies]
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fermi = { git = "https://github.com/dioxuslabs/dioxus" }
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```
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## Running examples
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The examples here use Dioxus Desktop to showcase their functionality. To run an example, use
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```sh
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$ cargo run --example fermi
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```
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## Features
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Broadly our feature set required to be released includes:
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- [x] Support for Atoms
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- [x] Support for AtomRef (for values that aren't `Clone`)
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- [ ] Support for Atom Families
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- [ ] Support for memoized Selectors
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- [ ] Support for memoized SelectorFamilies
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- [ ] Support for UseFermiCallback for access to fermi from async
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