JaggerJo.Avalonia.FuncUI 0.1.0

<img src="github/img/icon.png" width="100"/>

Avalonia.FuncUI

Develop cross-plattform MVU GUI Applications using F# and Avalonia!

About

This library allows you to write cross-plattform GUI Applications entirely in F# - No XAML, but a declarative elm like DSL. MVU (Model-View-Update) architecture support is built in, and bindings to use it with Elmish are also ready to use.

Current State

Should be usable, but expect bugs and some breaking changes. Basically wet paint.

Contributing

Please contribute to this library through issue reports, pull requests, code reviews and discussion.

Getting started

I'm currently working on making this availiable on nuget. Project templates will follow soon.

For now check out the Examples.

Example

Below is the code of a simple counter app (using the Avalonia.FuncUI.Elmish package).

module Counter =

    type CounterState = {
        count : int
    }

    let init = {
        count = 0
    }

    type Msg =
    | Increment
    | Decrement

    let update (msg: Msg) (state: CounterState) : CounterState =
        match msg with
        | Increment -> { state with count =  state.count + 1 }
        | Decrement -> { state with count =  state.count - 1 }
    
    let view (state: CounterState) (dispatch): View =
        Views.dockPanel [
            Attrs.children [
                Views.button [
                    Attrs.click (fun sender args -> dispatch Increment)
                    Attrs.content "click to increment"
                ]
                Views.button [
                    Attrs.click (fun sender args -> dispatch Decrement)
                    Attrs.content "click to decrement" 
                ]
                Views.textBlock [
                    Attrs.dockPanel_dock Dock.Top
                    Attrs.text (sprintf "the count is %i" state.count)
                ]
            ]
        ]