/// <summary>
/// Initializes a new instance of the <see cref="DragManager"/> class.
/// </summary>
/// <param name="dockControl">The <see cref="DockControl"/>.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="dockControl"/> is <see langword="null"/>.
/// </exception>
internal DragManager(DockControl dockControl)
{
if (dockControl == null)
{
throw new ArgumentNullException(nameof(dockControl));
}
_dockControl = dockControl;
Reset();
// Register event handlers.
((INotifyCollectionChanged)_dockControl.DockTabPanes).CollectionChanged += OnDockTabPanesChanged;
}
/// <summary>
/// Gets the primary DockWidth/DockHeight value for the given element.
/// </summary>
private static GridLength GetPrimaryDockSize(DependencyObject element, Orientation orientation)
{
if (element == null)
{
return(GridLength.Auto);
}
return((orientation == Orientation.Vertical) ? DockControl.GetDockHeight(element) : DockControl.GetDockWidth(element));
}
internal static IDockControl GetViewModel(this DockControl view)
{
return(GetViewModel <IDockControl>(view));
}
