Shrlalgo.RvKits/ShrlAlgoToolkit.Mvvm/Behaviors/WindowCloseByButtonBehavior.cs

using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using Microsoft.Xaml.Behaviors;

namespace ShrlAlgoToolkit.Mvvm.Behaviors;

//<Window x:Class="WpfApplication6.Window1"
//        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
//        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
//        xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
//        xmlns:local="clr-namespace:WpfApplication6"
//        Title="Window1" Height="300" Width="300">
//    <i:Interaction.Behaviors>
//        <local:WindowCloseByButtonBehavior CloseButton="{Binding ElementName=closeButton}"/>
//    </i:Interaction.Behaviors>
//    <Grid>
//        <Button Name="closeButton">CloseTrigger</Button>
//    </Grid>
//</Window>
/// <summary>
/// 通过按钮点击，关闭窗口
/// </summary>
public class WindowCloseByButtonBehavior
    : Behavior<Window>
{
	public static readonly DependencyProperty CommandProperty = DependencyProperty.Register(
		nameof(Command),
		typeof(ICommand),
		typeof(WindowCloseByButtonBehavior)
	);

	public static readonly DependencyProperty CommandParameterProperty = DependencyProperty.Register(
		nameof(CommandParameter),
		typeof(object),
		typeof(WindowCloseByButtonBehavior)
	);

	public static readonly DependencyProperty CloseButtonProperty = DependencyProperty.Register(
		nameof(CloseButton),
		typeof(Button),
		typeof(WindowCloseByButtonBehavior),
		new FrameworkPropertyMetadata(null, OnCloseButtonChanged)
	);

	public ICommand Command
	{
		get => (ICommand)GetValue(CommandProperty);
		set => SetValue(CommandProperty, value);
	}

	public object CommandParameter
	{
		get => GetValue(CommandParameterProperty);
		set => SetValue(CommandParameterProperty, value);
	}

	public Button CloseButton
	{
		get => (Button)GetValue(CloseButtonProperty);
		set => SetValue(CloseButtonProperty, value);
	}

	private static void OnCloseButtonChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
	{
		var window = ((WindowCloseByButtonBehavior)d).AssociatedObject;
		((Button)e.NewValue).Click += (s, e1) =>
		{
			var command = ((WindowCloseByButtonBehavior)d).Command;
			var commandParameter = ((WindowCloseByButtonBehavior)d).CommandParameter;
			command?.Execute(commandParameter);
			window.Close();
		};
	}
}