public void IsDraggingReturnsFalseAfterDisconnect()
{
var connected = new object();
var connector = Substitute.For <IUriPlacementConnector>();
var dragDrop = new ConnectedDragDrop(this._uriDisconnectTable);
dragDrop.Drag(connected);
IUriPlacementConnector dragDropConnector = dragDrop;
dragDropConnector.Disconnect(connected);
Assert.IsFalse(dragDrop.IsDragging(connected));
Assert.IsFalse(dragDrop.IsActive);
}
public void RaisesDraggedClosedOnDisconnect()
{
var connected = new object();
var connector = Substitute.For <IUriPlacementConnector>();
var dragDrop = new ConnectedDragDrop(this._uriDisconnectTable);
dragDrop.Drag(connected);
var wasRaised = false;
dragDrop.DraggedClosed += (sender, e) => wasRaised = true;
IUriPlacementConnector dragDropConnector = dragDrop;
dragDropConnector.Disconnect(connected);
Assert.IsTrue(wasRaised);
}
public void DisposesDataOnDisconnect()
{
var connected = new object();
var dragDrop = new ConnectedDragDrop(this._uriDisconnectTable);
dragDrop.Drag(connected);
var key1 = new ConnectedDragDropKey <IDisposable>();
var key2 = new ConnectedDragDropKey <IContainer>();
var disposable1 = Substitute.For <IDisposable>();
var disposable2 = Substitute.For <IContainer>();
dragDrop.SetData(key1, disposable1);
dragDrop.SetData(key2, disposable2);
IUriPlacementConnector dragDropConnector = dragDrop;
dragDropConnector.Disconnect(connected);
disposable1.Received(1).Dispose();
disposable2.Received(1).Dispose();
}
/// <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;
}
}
