ScrollGestureEventBehavior.cs 887 B

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  1. using Avalonia.Input;
  2. namespace Avalonia.Xaml.Interactions.Events;
  3. /// <summary>
  4. ///
  5. /// </summary>
  6. public abstract class ScrollGestureEventBehavior : InteractiveBehaviorBase
  7. {
  8. /// <inheritdoc />
  9. protected override void OnAttachedToVisualTree()
  10. {
  11. AssociatedObject?.AddHandler(Gestures.ScrollGestureEvent, ScrollGesture, RoutingStrategies);
  12. }
  13. /// <inheritdoc />
  14. protected override void OnDetachedFromVisualTree()
  15. {
  16. AssociatedObject?.RemoveHandler(Gestures.ScrollGestureEvent, ScrollGesture);
  17. }
  18. private void ScrollGesture(object? sender, ScrollGestureEventArgs e)
  19. {
  20. OnScrollGesture(sender, e);
  21. }
  22. /// <summary>
  23. ///
  24. /// </summary>
  25. /// <param name="sender"></param>
  26. /// <param name="e"></param>
  27. protected virtual void OnScrollGesture(object? sender, ScrollGestureEventArgs e)
  28. {
  29. }
  30. }