编写测试代码

DeedyDesigner/Deedy.Testing/MainWindow.xaml

@@ -14,8 +14,8 @@
                 </local:WindowDecorator>
             </local:ExMarkup.WindowChrome>
         </Border>
-        <Grid>
-
-        </Grid>
+        <AdornerDecorator x:Name="decorator">
+            <Button Content="打开抽屉" Click="Button_Click"/>
+        </AdornerDecorator>
     </DockPanel>
 </Window>

DeedyDesigner/Deedy.Testing/MainWindow.xaml.cs

@@ -25,5 +25,10 @@ namespace Deedy
         {
 
         }
+
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+            DrawerManager.ShowDrawer(this.decorator, new Border() { Background = Brushes.Red, MinWidth = 400, MinHeight = 400, HorizontalAlignment = HorizontalAlignment.Stretch, VerticalAlignment = VerticalAlignment.Stretch });
+        }
     }
 }

DeedyDesigner/Deedy.Testing/SlideDrawerAdorner.cs

@@ -0,0 +1,128 @@
+using System;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+
+namespace Deedy
+{
+    /// <summary>
+    /// 简化的蒙层装饰器
+    /// </summary>
+    public class SlideDrawerAdorner : Adorner
+    {
+        private readonly VisualCollection _visuals;
+        private readonly FrameworkElement _content;
+        private readonly Border _mask;
+
+        public SlideDrawerAdorner(UIElement adornedElement, FrameworkElement content, double maskOpacity = 0.5)
+            : base(adornedElement)
+        {
+            _visuals = new VisualCollection(this);
+
+            // 创建蒙层
+            _mask = new Border
+            {
+                Background = Brushes.Black,
+                Opacity = maskOpacity
+            };
+            _mask.MouseLeftButtonDown += (s, e) => CloseRequested?.Invoke(this, EventArgs.Empty);
+
+            // 添加内容
+            _content = content;
+
+            _visuals.Add(_mask);
+            //_visuals.Add(_content);
+            _mask.Child = _content;
+        }
+
+        public event EventHandler? CloseRequested;
+
+        protected override int VisualChildrenCount => _visuals.Count;
+        protected override Visual GetVisualChild(int index) => _visuals[index];
+
+        protected override Size ArrangeOverride(Size finalSize)
+        {
+            // 蒙层覆盖整个区域
+            _mask.Arrange(new Rect(finalSize));
+
+            // 内容初始位置在左侧外部
+            _content.Arrange(new Rect(-_content.DesiredSize.Width, 0,
+                                    _content.DesiredSize.Width, finalSize.Height));
+            return finalSize;
+        }
+
+        public void SlideIn(TimeSpan duration)
+        {
+            var transform = new TranslateTransform();
+            _content.RenderTransform = transform;
+
+            var animation = new DoubleAnimation
+            {
+                To = 0,
+                Duration = duration,
+                EasingFunction = new CubicEase { EasingMode = EasingMode.EaseOut }
+            };
+
+            transform.BeginAnimation(TranslateTransform.XProperty, animation);
+        }
+
+        public void SlideOut(TimeSpan duration, Action? onCompleted = null)
+        {
+            var transform = _content.RenderTransform as TranslateTransform;
+            if (transform == null) return;
+
+            var animation = new DoubleAnimation
+            {
+                To = -_content.DesiredSize.Width,
+                Duration = duration,
+                EasingFunction = new CubicEase { EasingMode = EasingMode.EaseIn }
+            };
+
+            if (onCompleted != null)
+                animation.Completed += (s, e) => onCompleted();
+
+            transform.BeginAnimation(TranslateTransform.XProperty, animation);
+        }
+    }
+
+    /// <summary>
+    /// 简化的抽屉管理器
+    /// </summary>
+    public static class DrawerManager
+    {
+        public static void ShowDrawer(UIElement parentElement, FrameworkElement drawerContent, double maskOpacity = 0.5)
+        {
+            var layer = AdornerLayer.GetAdornerLayer(parentElement);
+            if (layer == null) return;
+
+            var adorner = new SlideDrawerAdorner(parentElement, drawerContent, maskOpacity);
+            adorner.CloseRequested += (s, e) => HideDrawer(parentElement);
+
+            layer.Add(adorner);
+            adorner.SlideIn(TimeSpan.FromMilliseconds(300));
+        }
+
+        public static void HideDrawer(UIElement parentElement)
+        {
+            var layer = AdornerLayer.GetAdornerLayer(parentElement);
+            if (layer == null) return;
+
+            var adorners = layer.GetAdorners(parentElement);
+            if (adorners == null) return;
+
+            foreach (var adorner in adorners)
+            {
+                if (adorner is SlideDrawerAdorner slideAdorner)
+                {
+                    slideAdorner.SlideOut(TimeSpan.FromMilliseconds(250), () =>
+                    {
+                        layer.Remove(slideAdorner);
+                    });
+                    break;
+                }
+            }
+        }
+    }
+}

DeedyDesigner/Deedy.Testing/SlideViewer.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Documents;
+
+namespace Deedy.Testing
+{
+    public class SlideViewer : Adorner
+    {
+        public SlideViewer(UIElement adornedElement) : base(adornedElement)
+        {
+            //「AdornedElement」=「adornedElement」
+        }
+    }
+}