misc

src/WPF/RelayCommand.cs

@@ -0,0 +1,27 @@
+
+using System;
+using System.Windows.Input;
+
+namespace mpvnet
+{
+    public class RelayCommand : ICommand
+    {
+        public event EventHandler CanExecuteChanged;
+
+        Action<object> ExecuteAction;
+
+        Predicate<object> CanExecutePredicate;
+
+        public RelayCommand(Action<object> executeAction, Predicate<object> canExecutePredicate = null)
+        {
+            ExecuteAction = executeAction;
+            CanExecutePredicate = canExecutePredicate;
+        }
+
+        public bool CanExecute(object parameter) => CanExecutePredicate == null || CanExecutePredicate(parameter);
+
+        public void Execute(object parameter) => ExecuteAction(parameter);
+
+        public void OnCanExecuteChanged() => CanExecuteChanged?.Invoke(this, EventArgs.Empty);
+    }
+}