SetFocusOnCompletedBehavior.cs

using System.ComponentModel;
using NeuroAccessMaui.UI.Controls;
 
namespace NeuroAccessMaui.UI.Behaviors
{
    public class SetFocusOnCompletedBehavior : Behavior<CompositeEntry>
    {
        [TypeConverter(typeof(ReferenceTypeConverter))]
        public View? SetFocusTo { get; set; }
 
        [TypeConverter(typeof(ReferenceTypeConverter))]
        public View? SetFocusToAlternative { get; set; }
 
        public static readonly BindableProperty UseAlternativeProperty =
            BindableProperty.Create(nameof(UseAlternative), typeof(bool), typeof(SetFocusOnCompletedBehavior), default);
 
        public bool UseAlternative
        {
            get => (bool)this.GetValue(UseAlternativeProperty);
            set => this.SetValue(UseAlternativeProperty, value);
        }
 
        protected override void OnAttachedTo(CompositeEntry entry)
        {
            entry.Completed += this.Entry_Completed;
            base.OnAttachedTo(entry);
        }
 
        protected override void OnDetachingFrom(CompositeEntry entry)
        {
            entry.Completed -= this.Entry_Completed;
            base.OnDetachingFrom(entry);
        }
 
        private void Entry_Completed(object? Sender, EventArgs e)
        {
            if (this.UseAlternative && this.SetFocusToAlternative is not null)
                SetFocusOnClickedBehavior.FocusOn(this.SetFocusToAlternative);
            else
                SetFocusOnClickedBehavior.FocusOn(this.SetFocusTo!);
        }
    }
}