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