public void AddItem(FunctionReference item)
{
if (item == null) return;
if (_references.Contains(item)) return;
_references.Add(item);
OnLinkAdded(item);
}
public void RemoveItem(FunctionReference item)
{
if (item == null || !_references.Contains(item))
{
return;
}
_references.Remove(item);
OnLinkRemoved(item);
}
public void AddItem(FunctionReference item)
{
if (item == null)
{
return;
}
if (_references.Contains(item))
{
return;
}
_references.Add(item);
OnLinkAdded(item);
}
private void OnLinkRemoved(FunctionReference element)
{
if (_isInitializing)
{
return;
}
var handler = ReferenceRemoved;
if (handler != null)
{
handler(this, new FunctionReferenceEventArgs(element));
}
}
public FunctionReferenceEventArgs(FunctionReference element)
{
Item = element;
}
private static FunctionReference ParseLink(XElement data)
{
var link = new FunctionReference();
link.LoadXml(data);
return link;
}
public void RemoveItem(FunctionReference item)
{
if (item == null) return;
Workflow.RemoveItem(item);
}
private void ProcessDeletedLink(FunctionReference link)
{
if (link == null) return;
var host = _surface.Children.OfType<LinkHost>().FirstOrDefault(l => l.Id == link.Id);
if (host == null) return;
// TODO: temp hack
host.Source.HasOutgoingConnections = false;
host.Target.HasIncomingConnections = false;
// TODO: Denis: find out more structured way
host.Source.DesignerControl.OutgoingLinks.Remove(host);
host.Target.DesignerControl.IncomingLinks.Remove(host);
_surface.Children.Remove(host);
}
private void ProcessNewLink(FunctionReference link)
{
if (link == null) return;
var sourceHost = _surface.Children.OfType<ActivityHost>().FirstOrDefault(c => c.Id == link.SourceId);
var targetHost = _surface.Children.OfType<ActivityHost>().FirstOrDefault(c => c.Id == link.TargetId);
var sourceConnector = sourceHost.View.FindConnectorByName(link.SourcePin);
var targetConnector = targetHost.View.FindConnectorByName(link.TargetPin);
var conn = new LinkHost(_surface, link, sourceConnector, targetConnector, Orientation.Vertical);
// TODO: outgoing links should be also kept by connector?
sourceHost.OutgoingLinks.Add(conn);
targetHost.OutgoingLinks.Add(conn);
// TODO: temp hack
sourceConnector.HasOutgoingConnections = true;
targetConnector.HasIncomingConnections = true;
_surface.Children.Add(conn);
}
private void OnSurfaceMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if (_sourceConnector != null)
{
var targetConnector = VisualTreeHelper.FindElementsInHostCoordinates(e.GetPosition(null), _surface).OfType<ObjectConnector>().FirstOrDefault();
if (targetConnector != null
&& targetConnector != _sourceConnector
&& targetConnector.DesignerControl != _sourceConnector.DesignerControl
&& CanFinishConnection(targetConnector))
{
var sourceId = _sourceConnector.DesignerControl.Id;
var targetId = targetConnector.DesignerControl.Id;
var workflowLink = new FunctionReference
{
SourceId = sourceId,
SourcePin = _sourceConnector.PinName,
TargetId = targetId,
TargetPin = targetConnector.PinName
};
Workflow.AddItem(workflowLink);
}
}
RemoveConnectionLine();
if (SelectedItemHost != null)
{
SelectedItemHost.ReleaseMouseCapture();
_dragStarted = false;
}
}
public FunctionReferenceEventArgs(FunctionReference element)
{
Item = element;
}
private void OnLinkRemoved(FunctionReference element)
{
if (_isInitializing) return;
var handler = ReferenceRemoved;
if (handler != null) handler(this, new FunctionReferenceEventArgs(element));
}
public void RemoveItem(FunctionReference item)
{
if (item == null || !_references.Contains(item)) return;
_references.Remove(item);
OnLinkRemoved(item);
}
