/// <summary>
/// Called to update where we listen for grip.
/// </summary>
internal void ListenForGrip()
{
if (this.gripEventTarget != null)
{
KinectRegion.RemoveHandPointerGripHandler(this.gripEventTarget, this.OnHandPointerGrip);
KinectRegion.SetIsGripTarget(this, false);
BindingOperations.ClearBinding(this, IsPrimaryHandPointerOverProperty);
this.gripEventTarget.IsEnabledChanged -= this.OnStateChangeEvent;
this.gripEventTarget.MouseEnter -= this.OnMouseChange;
this.gripEventTarget.MouseLeave -= this.OnMouseChange;
this.gripEventTarget = null;
}
this.sliderParent = FindAncestor <KinectSlider>(this);
if (this.sliderParent == null)
{
this.gripEventTarget = this;
}
else if (this.sliderParent.GripEventTarget != null)
{
this.gripEventTarget = this.sliderParent.GripEventTarget;
}
else
{
this.gripEventTarget = this.sliderParent;
}
var binding = new Binding {
Source = this.gripEventTarget, Path = new PropertyPath(KinectRegion.IsPrimaryHandPointerOverProperty)
};
BindingOperations.SetBinding(this, IsPrimaryHandPointerOverProperty, binding);
this.gripEventTarget.IsEnabledChanged += this.OnStateChangeEvent;
this.gripEventTarget.MouseEnter += this.OnMouseChange;
this.gripEventTarget.MouseLeave += this.OnMouseChange;
KinectRegion.AddHandPointerGripHandler(this.gripEventTarget, this.OnHandPointerGrip);
KinectRegion.SetIsGripTarget(this.gripEventTarget, true);
}