improved dialog

src/Shared/HandyControl_Shared/Controls/Other/Dialog.cs

@@ -1,4 +1,6 @@
-using System.Windows;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Documents;
 using System.Windows.Input;
@@ -12,6 +14,8 @@ namespace HandyControl.Controls
     {
         private Adorner _container;
 
+        private static readonly Dictionary<string, System.Windows.Window> WindowDic = new Dictionary<string, System.Windows.Window>();
+
         public static readonly DependencyProperty IsClosedProperty = DependencyProperty.Register(
             "IsClosed", typeof(bool), typeof(Dialog), new PropertyMetadata(ValueBoxes.FalseBox));
 
@@ -21,21 +25,94 @@ namespace HandyControl.Controls
             internal set => SetValue(IsClosedProperty, value);
         }
 
+        public static readonly DependencyProperty TokenProperty = DependencyProperty.RegisterAttached(
+            "Token", typeof(string), typeof(Dialog), new PropertyMetadata(default(string), OnTokenChanged));
+
+        private static void OnTokenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            if (d is System.Windows.Window window)
+            {
+                if (e.NewValue == null)
+                {
+                    Unregister(window);
+                }
+                else
+                {
+                    Register(e.NewValue.ToString(), window);
+                }
+            }
+        }
+
+        public static void SetToken(DependencyObject element, string value)
+            => element.SetValue(TokenProperty, value);
+
+        public static string GetToken(DependencyObject element)
+            => (string) element.GetValue(TokenProperty);
+
         public Dialog()
         {
             CommandBindings.Add(new CommandBinding(ControlCommands.Close, (s, e) => Close()));
         }
 
-        public static Dialog Show<T>() where T : new() => Show(new T());
+        public static void Register(string token, System.Windows.Window window)
+        {
+            if (string.IsNullOrEmpty(token) || window == null) return;
+            WindowDic[token] = window;
+        }
 
-        public static Dialog Show(object content)
+        public static void Unregister(string token, System.Windows.Window window)
+        {
+            if (string.IsNullOrEmpty(token) || window == null) return;
+
+            if (WindowDic.ContainsKey(token))
+            {
+                if (ReferenceEquals(WindowDic[token], window))
+                {
+                    WindowDic.Remove(token);
+                }
+            }
+        }
+
+        public static void Unregister(System.Windows.Window window)
+        {
+            if (window == null) return;
+            var first = WindowDic.FirstOrDefault(item => ReferenceEquals(window, item.Value));
+            if (!string.IsNullOrEmpty(first.Key))
+            {
+                WindowDic.Remove(first.Key);
+            }
+        }
+
+        public static void Unregister(string token)
+        {
+            if (string.IsNullOrEmpty(token)) return;
+
+            if (WindowDic.ContainsKey(token))
+            {
+                WindowDic.Remove(token);
+            }
+        }
+
+        public static Dialog Show<T>(string token = "") where T : new() => Show(new T(), token);
+
+        public static Dialog Show(object content, string token = "")
         {
             var dialog = new Dialog
             {
                 Content = content
             };
 
-            var window = VisualHelper.GetActiveWindow();
+            System.Windows.Window window;
+
+            if (string.IsNullOrEmpty(token))
+            {
+                window = VisualHelper.GetActiveWindow();
+            }
+            else
+            {
+                WindowDic.TryGetValue(token, out window);
+            }
+
             if (window != null)
             {
                 var decorator = VisualHelper.GetChild<AdornerDecorator>(window);
@@ -62,9 +139,23 @@ namespace HandyControl.Controls
             return dialog;
         }
 
-        public void Close()
+        public void Close(string token = "")
+        {
+            if (!string.IsNullOrEmpty(token))
+            {
+                if (WindowDic.TryGetValue(token, out var window))
+                {
+                    Close(window);
+                }
+            }
+            else
+            {
+                Close(VisualHelper.GetActiveWindow());
+            }
+        }
+
+        private void Close(System.Windows.Window window)
         {
-            var window = VisualHelper.GetActiveWindow();
             if (window != null)
             {
                 var decorator = VisualHelper.GetChild<AdornerDecorator>(window);

src/Shared/HandyControl_Shared/Controls/Other/Growl.cs

@@ -98,6 +98,19 @@ namespace HandyControl.Controls
             }
         }
 
+        public static void Unregister(string token)
+        {
+            if (string.IsNullOrEmpty(token)) return;
+
+            if (PanelDic.ContainsKey(token))
+            {
+                var panel = PanelDic[token];
+                PanelDic.Remove(token);
+                panel.ContextMenu = null;
+                panel.SetCurrentValue(PanelElement.FluidMoveBehaviorProperty, DependencyProperty.UnsetValue);
+            }
+        }
+
         protected override void OnMouseEnter(MouseEventArgs e)
         {
             base.OnMouseEnter(e);