Access to array argument in callback set with set_callback

[oheil]

I have a 2d array property where I define a callback on change on it:

export component MainWindow inherits Window {
    in property <[[string]]> names-list-bridge;
    callback bridge( [[string]] );
    changed names-list-bridge => {
        bridge( names-list-bridge );
    }
    ...
}

I struggle to access the elements in the callback definition:

            ...
            let _ = instance.set_callback("bridge", move |args: &[Value]| -> Value {
                // how can I access the array [[string]] from args[0] ?
                let model = args[0]... ???

                return Value::from(Value::Void);
            } );

The callback has more than this single array parameter, but I skipped the others for simplicity.
Any help appreciated!

[ogoffart]

I think you can do something like so:

if let slint_interpreter::Value::Model(model) = &args[0] {
   ... here you can access model.row_count()  and model.row_data()...
}

Note that the model.row_data would as well be a Value::Model

[ogoffart]

There is also a impl TryFrom<ModelRc<Value>> for Value

[oheil]

Thanks for your help. Both methods work:

                if let slint_interpreter::Value::Model(model) = &args[0] {
                    debug!("model.row_count(): {}",model.row_count());
                    ...
                }

or

                let model2: ModelRc<Value> = ModelRc::try_from(args[0].clone()).unwrap();
                debug!("model2.row_count(): {}",model2.row_count());
                ...