SPELL
Framework

// ui/app-window.slint
import { VerticalBox, Button } from "std-widgets.slint";

export component AppWindow inherits Window {
    // A two-way bindable integer property
    in-out property <int> counter: 42;

    // Callback fired when button is clicked
    callback request-increase-value();

    VerticalBox {
        Text {
            text: "Counter: \{root.counter}";
        }

        Button {
            text: "Increase value";
            clicked => {
                root.request-increase-value();
            }
        }
    }
}

use slint::ComponentHandle;
use spell_framework::{
    cast_spell,
    layer_properties::{
        LayerAnchor, LayerType, WindowConf
    },
};
use std::{env, error::Error};

slint::include_modules!();

// Generate Spell widgets/windows from slint windows
spell_framework::generate_widgets![AppWindow];

fn main() -> Result<(), Box<dyn Error>> {
    // Set window configuration
    let window_conf = WindowConf::builder()
        .width(376_u32)
        .height(576_u32)
        .anchor_1(LayerAnchor::TOP)
        .margins(5, 0, 0, 10)
        .layer_type(LayerType::Top)
        .build()
        .unwrap();

    // Initialise Slint window + wayland layer shell
    let ui = AppWindowSpell::invoke_spell(
        "counter-widget", window_conf
    );

    // Wire up the button callback
    ui.on_request_increase_value({
        let ui_handle = ui.as_weak();
        move || {
            let ui = ui_handle.unwrap();
            ui.set_counter(
                ui.get_counter() + 1
            );
        }
    });

    // Run the event loop
    cast_spell!(ui)
}