init

Common/DTS.CommonCore/RibbonControl/RibbonControlSelectionChangeBehavior.cs

@@ -0,0 +1,46 @@
+using System.Windows;
+using System.Windows.Controls;
+using Microsoft.Practices.Prism.Events;
+using Microsoft.Practices.ServiceLocation;
+using Microsoft.Windows.Controls.Ribbon;
+
+namespace DTS.Common.RibbonControl
+{
+    public class RibbonControlSelectionChangeBehavior : System.Windows.Interactivity.Behavior<Ribbon>
+    {
+        public static readonly DependencyProperty TargetRibbonProperty = DependencyProperty.Register("TargetRibbonControl", typeof(Ribbon), typeof(RibbonControlSelectionChangeBehavior), new PropertyMetadata(null));
+
+        private IEventAggregator _eventAggregator;
+
+        public Ribbon TargetRibbonControl
+        {
+            get => (Ribbon)GetValue(TargetRibbonProperty);
+            set => SetValue(TargetRibbonProperty, value);
+        }
+
+        protected override void OnAttached()
+        {
+            base.OnAttached();
+            AssociatedObject.SelectionChanged += Ribbon_SelectionChanged;
+
+            if (_eventAggregator == null)
+                _eventAggregator = ServiceLocator.Current.GetInstance<IEventAggregator>();
+        }
+
+        protected override void OnDetaching()
+        {
+            base.OnDetaching();
+            AssociatedObject.SelectionChanged -= Ribbon_SelectionChanged;
+        }
+
+        void Ribbon_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if (e.AddedItems.Count > 0)
+                _eventAggregator.GetEvent<RibbonControlSelectionChanged>().Publish(new RibbonControlSelectionEventArgs(RibbonControlOperation.AddedItem, e.AddedItems[0]));
+
+            if (e.RemovedItems.Count > 0)
+                _eventAggregator.GetEvent<RibbonControlSelectionChanged>().Publish(new RibbonControlSelectionEventArgs(RibbonControlOperation.RemovedItem, e.RemovedItems[0]));
+        }
+    }
+
+}