// Licensed to the .NET Foundation under one or more agreements.

// The .NET Foundation licenses this file to you under the MS-PL license.

// See the LICENSE file in the project root for more information.

using ReactiveUI;

using Xamarin.Forms;

namespace ReactiveUI.XamForms

{

public class ReactiveTextCell<TViewModel> : TextCell, IViewFor<TViewModel>

where TViewModel : class

{

public static readonly BindableProperty ViewModelProperty = BindableProperty.Create(

nameof(ViewModel),

typeof(TViewModel),

typeof(ReactiveTextCell<TViewModel>),

default(TViewModel),

BindingMode.OneWay,

propertyChanged: OnViewModelChanged);

public TViewModel ViewModel

{

get { return (TViewModel)GetValue(ViewModelProperty); }

set { SetValue(ViewModelProperty, value); }

}

object IViewFor.ViewModel

{

get { return this.ViewModel; }

set { this.ViewModel = (TViewModel)value; }

}

protected override void OnBindingContextChanged()

{

base.OnBindingContextChanged();

this.ViewModel = this.BindingContext as TViewModel;

}

private static void OnViewModelChanged(BindableObject bindableObject, object oldValue, object newValue)

{

bindableObject.BindingContext = newValue;

}

}

}