/// <summary>
/// Ends dragging of an object by attaching it to the given connector.
/// </summary>
/// <param name="target">The connector for attaching of a dragging object.</param>
public void Drop(IUriPlacementConnector target)
{
var dragged = this._connected;
target.Connect(dragged);
this._uriDisconnectTable[dragged] = target;
this._connected = null;
this._data.Clear();
}
/// <summary>
/// Tries to make the object resolved via the URI available in the shell.
/// </summary>
/// <param name="uri">The URI of the resolved object.</param>
/// <param name="resolved">The object resolved via the URI.</param>
/// <param name="placementConnector"><see cref="IUriPlacementConnector"/>
/// for connecting the object to the user interface.</param>
/// <param name="appendToDisposable">When this method returns, contains the action that allows to add a <see cref="IDisposable"/>
/// to the group of <see cref="IDisposable"/> in the metadata.</param>
/// <returns><see cref="IDisposable"/> registered in the metadata.</returns>
private IDisposable Connect(Uri uri, object resolved, IUriPlacementConnector placementConnector, out Action <IDisposable> appendToDisposable)
{
placementConnector.Connect(resolved);
try
{
var composite = new CompositeDisposable();
appendToDisposable = composite.Add;
this._uriResolvedObjectHolder.Add(resolved, new UriResolvedMetadata(uri, composite));
this._uriDisconnectTable[resolved] = placementConnector;
return(composite);
}
catch (Exception ex)
{
if (!ex.IsCritical())
{
// When failed to add the object in the holder - disconnect it from the UI.
placementConnector.Disconnect(resolved);
}
throw;
}
}
