/// <summary>
/// The attach.
/// </summary>
/// <param name="adorner">
/// The adorner.
/// </param>
/// <returns>
/// The <see cref="ControlAdornerDragDrop"/>.
/// </returns>
public static ControlAdornerDragDrop Attach(ControlAdorner adorner)
{
if (adorner == null || adorner.Child == null)
{
return null;
}
var dd = new ControlAdornerDragDrop { adorner = adorner };
dd.adorner.Child.MouseLeftButtonDown += dd.MouseLeftButtonDown;
dd.adorner.Child.MouseLeftButtonUp += dd.MouseLeftButtonUp;
dd.adorner.Child.MouseMove += dd.MouseMove;
return dd;
}
/// <summary>
/// The attach.
/// </summary>
/// <param name="adorner">
/// The adorner.
/// </param>
/// <returns>
/// The <see cref="ControlAdornerDragDrop"/>.
/// </returns>
public static ControlAdornerDragDrop Attach(ControlAdorner adorner)
{
if (adorner == null || adorner.Child == null)
{
return(null);
}
var dd = new ControlAdornerDragDrop {
adorner = adorner
};
dd.adorner.Child.MouseLeftButtonDown += dd.MouseLeftButtonDown;
dd.adorner.Child.MouseLeftButtonUp += dd.MouseLeftButtonUp;
dd.adorner.Child.MouseMove += dd.MouseMove;
return(dd);
}
/// <summary>
/// The remove adorner.
/// </summary>
private void RemoveAdorner()
{
if (this.adorner == null || this.adornerLayer == null)
{
return;
}
if (this.adornerDragDrop != null)
{
ControlAdornerDragDrop.Detach(this.adornerDragDrop);
this.adornerDragDrop = null;
}
this.adornerLayer.Remove(this.adorner);
this.adorner.Child = null;
this.adorner = null;
this.adornerLayer = null;
this.RegisterBeingMovedOut();
}
/// <summary>
/// The create adorner.
/// </summary>
private void CreateAdorner()
{
if (this.adorner != null || (Application.Current.MainWindow == null && this.userDefinedAdorner == null))
{
return;
}
var adornedElement = this.GetAdornerElement();
if (adornedElement == null)
{
return;
}
AdornerLayer layer = AdornerLayer.GetAdornerLayer(adornedElement);
if (layer == null)
{
return;
}
this.isPositionCalculated = false;
var ad = new ControlAdorner(adornedElement) { Child = this, Focusable = false };
KeyboardNavigation.SetTabNavigation(ad, KeyboardNavigationMode.None);
layer.Add(ad);
this.adorner = ad;
this.adornerLayer = layer;
if (this.IsPinned && this.adornerDragDrop == null)
{
this.adornerDragDrop = ControlAdornerDragDrop.Attach(this.adorner);
}
this.RegisterBeingInFront();
}