bluflame/intromat/Intromat/Views/GroupNodeView.xaml.cs

using System.Reactive.Disposables;
using System.Windows;
using Intromat.ViewModels.Nodes;
using ReactiveUI;

namespace Intromat.Views
{
    public partial class GroupNodeView : IViewFor<GroupNodeViewModel>
    {
        public static readonly DependencyProperty ViewModelProperty = DependencyProperty.Register(nameof(ViewModel),
            typeof(GroupNodeViewModel), typeof(GroupNodeView), new PropertyMetadata(null));

        public GroupNodeView()
        {
            InitializeComponent();

            this.WhenActivated(d =>
            {
                NodeView.ViewModel = ViewModel;
                Disposable.Create(() => NodeView.ViewModel = null).DisposeWith(d);

                this.OneWayBind(ViewModel, vm => vm.NodeType, v => v.NodeView.Background, CodeGenNodeView.ConvertNodeTypeToBrush).DisposeWith(d);
            });
        }

        public GroupNodeViewModel? ViewModel
        {
            get => (GroupNodeViewModel?)GetValue(ViewModelProperty);
            set => SetValue(ViewModelProperty, value);
        }

        object? IViewFor.ViewModel
        {
            get => ViewModel;
            set => ViewModel = (GroupNodeViewModel?)value;
        }
    }
}