From e774f9a90fd812a9de8c3efe966a759bee8be703 Mon Sep 17 00:00:00 2001
From: Roy Ben Shabat <Roy.mail.net@gmail.com>
Date: Wed, 11 Mar 2020 03:41:20 +0200
Subject: Working on FSE/PPC performance provider. Implemented resolution
 service. a lot of work!

---
 .../Tango.SharedUI/Controls/NavigationControl.cs   | 26 ++++++++++++++++------
 1 file changed, 19 insertions(+), 7 deletions(-)

(limited to 'Software/Visual_Studio/Tango.SharedUI/Controls/NavigationControl.cs')

diff --git a/Software/Visual_Studio/Tango.SharedUI/Controls/NavigationControl.cs b/Software/Visual_Studio/Tango.SharedUI/Controls/NavigationControl.cs
index 15d15decb..ce1fca7ac 100644
--- a/Software/Visual_Studio/Tango.SharedUI/Controls/NavigationControl.cs
+++ b/Software/Visual_Studio/Tango.SharedUI/Controls/NavigationControl.cs
@@ -22,7 +22,9 @@ namespace Tango.SharedUI.Controls
     public class NavigationControl : UserControl
     {
         private event Action NavigationCompleted;
+        public event EventHandler<FrameworkElement> SelectedElementChanged;
         private Thread _navigationThread;
+        private bool _preventSelectedObjectNavigation;
         private ProducerConsumerQueue<NavigationQueueItem> _navigationQueue;
 
         private class NavigationQueueItem
@@ -191,14 +193,12 @@ namespace Tango.SharedUI.Controls
             get { return (object)GetValue(SelectedObjectProperty); }
             set { SetValue(SelectedObjectProperty, value); }
         }
-
-        // Using a DependencyProperty as the backing store for SelectedObject.  This enables animation, styling, binding, etc...
         public static readonly DependencyProperty SelectedObjectProperty =
-            DependencyProperty.Register("SelectedObject", typeof(object), typeof(NavigationControl), new PropertyMetadata(null, (d, e) => (d as NavigationControl).OnSelectedObjectChanged()));
+            DependencyProperty.Register("SelectedObject", typeof(object), typeof(NavigationControl), new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault, (d, e) => (d as NavigationControl).OnSelectedObjectChanged()));
 
         private void OnSelectedObjectChanged()
         {
-            if (SelectedObject != null)
+            if (SelectedObject != null && !_preventSelectedObjectNavigation)
             {
                 NavigateTo(SelectedObject);
             }
@@ -218,7 +218,7 @@ namespace Tango.SharedUI.Controls
             set { SetValue(SelectedElementProperty, value); }
         }
         public static readonly DependencyProperty SelectedElementProperty =
-            DependencyProperty.Register("SelectedElement", typeof(FrameworkElement), typeof(NavigationControl), new PropertyMetadata(null, (d, e) => (d as NavigationControl).OnSelectedElementChanged(e.OldValue as FrameworkElement, e.NewValue as FrameworkElement)));
+            DependencyProperty.Register("SelectedElement", typeof(FrameworkElement), typeof(NavigationControl), new FrameworkPropertyMetadata(null, (d, e) => (d as NavigationControl).OnSelectedElementChanged(e.OldValue as FrameworkElement, e.NewValue as FrameworkElement)));
 
         public TransitionTypes TransitionType
         {
@@ -310,7 +310,9 @@ namespace Tango.SharedUI.Controls
         /// <returns></returns>
         public static String GetNavigationName(FrameworkElement element)
         {
-            return element.GetValue(NavigationName).ToStringSafe();
+            var name = element.GetValue(NavigationName).ToStringSafe();
+            if (String.IsNullOrEmpty(name)) name = element.GetType().Name;
+            return name;
         }
 
         #endregion
@@ -383,6 +385,8 @@ namespace Tango.SharedUI.Controls
             }
             else
             {
+                Elements.ToList().ForEach(x => x.FocusVisualStyle = null);
+
                 var toRemove = _grid.Children.OfType<NavigationElement>().ToList().Where(x => !Elements.Contains(x.Element)).ToList();
                 var toAdd = Elements.Where(x => !_grid.Children.OfType<NavigationElement>().Select(y => y.Element).ToList().Contains(x)).ToList();
 
@@ -622,6 +626,14 @@ namespace Tango.SharedUI.Controls
         protected virtual void OnSelectedElementChanged(FrameworkElement fromElement, FrameworkElement toElement)
         {
             Navigate(GetElementContainer(fromElement), GetElementContainer(toElement));
+            SelectedElementChanged?.Invoke(this, toElement);
+
+            if (toElement != null)
+            {
+                _preventSelectedObjectNavigation = true;
+                SelectedObject = GetNavigationName(toElement);
+                _preventSelectedObjectNavigation = false;
+            }
         }
 
         #endregion
@@ -696,7 +708,7 @@ namespace Tango.SharedUI.Controls
 
             FrameworkElement view = null;
 
-            view = NavigateTo(navigationName, () => 
+            view = NavigateTo(navigationName, () =>
             {
                 source.SetResult(view);
             });
-- 
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