add Dialog

HandyControl/Controls/Other/Dialog.cs

@@ -1,9 +1,69 @@
 using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Input;
+using HandyControl.Interactivity;
+using HandyControl.Tools;
 
 namespace HandyControl.Controls
 {
     public class Dialog : ContentControl
     {
-        
+        private Adorner _container;
+
+        public Dialog()
+        {
+            CommandBindings.Add(new CommandBinding(ControlCommands.Close, (s, e) => Close()));
+        }
+
+        public static Dialog Show(object content)
+        {
+            var dialog = new Dialog
+            {
+                Content = content
+            };
+
+            var window = VisualHelper.GetActiveWindow();
+            if (window != null)
+            {
+                var decorator = VisualHelper.GetChild<AdornerDecorator>(window);
+                if (decorator != null)
+                {
+                    if (decorator.Child != null)
+                    {
+                        decorator.Child.IsEnabled = false;
+                    }
+                    var layer = decorator.AdornerLayer;
+                    if (layer != null)
+                    {
+                        var container = new AdornerContainer(layer)
+                        {
+                            Child = dialog
+                        };
+                        dialog._container = container;
+                        layer.Add(container);
+                    }
+                }
+            }
+
+            return dialog;
+        }
+
+        public void Close()
+        {
+            var window = VisualHelper.GetActiveWindow();
+            if (window != null)
+            {
+                var decorator = VisualHelper.GetChild<AdornerDecorator>(window);
+                if (decorator != null)
+                {
+                    if (decorator.Child != null)
+                    {
+                        decorator.Child.IsEnabled = true;
+                    }
+                    var layer = decorator.AdornerLayer;
+                    layer?.Remove(_container);
+                }
+            }
+        } 
     }
 }

HandyControl/Controls/Other/GotoTop.cs

@@ -30,7 +30,7 @@ namespace HandyControl.Controls
             {
                 _scrollViewer.ScrollChanged -= ScrollViewer_ScrollChanged;
             }
-            _scrollViewer = VisualHelper.GetGetChild<System.Windows.Controls.ScrollViewer>(obj);
+            _scrollViewer = VisualHelper.GetChild<System.Windows.Controls.ScrollViewer>(obj);
             if (_scrollViewer != null)
             {
                 _scrollViewer.ScrollChanged += ScrollViewer_ScrollChanged;

HandyControl/Interactivity/AdornerContainer.cs

@@ -14,8 +14,7 @@ namespace HandyControl.Interactivity
 
         public UIElement Child
         {
-            get =>
-                _child;
+            get => _child;
             set
             {
                 AddVisualChild(value);

HandyControl/Themes/Styles/Base/DialogBaseStyle.xaml

@@ -3,7 +3,17 @@
                     xmlns:controls="clr-namespace:HandyControl.Controls">
 
     <Style x:Key="DialogBaseStyle" TargetType="controls:Dialog">
-        
+        <Setter Property="HorizontalContentAlignment" Value="Center"/>
+        <Setter Property="VerticalContentAlignment" Value="Center"/>
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="controls:Dialog">
+                    <Border Background="{DynamicResource DarkOpacityBrush}">
+                        <ContentPresenter Margin="{TemplateBinding Padding}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
+                    </Border>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
     </Style>
 
 </ResourceDictionary>

HandyControl/Tools/Helper/VisualHelper.cs

@@ -27,18 +27,18 @@ namespace HandyControl.Tools
                 : null;
         }
 
-        internal static T GetGetChild<T>(DependencyObject d) where T : DependencyObject
+        internal static T GetChild<T>(DependencyObject d) where T : DependencyObject
         {
-            if (d is T scrollViewer)
+            if (d is T t)
             {
-                return scrollViewer;
+                return t;
             }
 
             for (int i = 0; i < VisualTreeHelper.GetChildrenCount(d); i++)
             {
                 var child = VisualTreeHelper.GetChild(d, i);
 
-                var result = GetGetChild<T>(child);
+                var result = GetChild<T>(child);
                 if (result != null) return result;
             }