public override void HandleMouseUp(MouseUpEvent evt)
{
bool didConnect = false;
Vector2 mousePosition = evt.mousePosition;
// Reset the highlights.
graphView.ports.ForEach((p) => {
p.OnStopEdgeDragging();
});
// Clean up ghost edges.
if (ghostEdge != null)
{
if (ghostEdge.input != null)
{
ghostEdge.input.portCapLit = false;
}
if (ghostEdge.output != null)
{
ghostEdge.output.portCapLit = false;
}
graphView.RemoveElement(ghostEdge);
ghostEdge.input = null;
ghostEdge.output = null;
ghostEdge = null;
}
Port endPort = GetEndPort(mousePosition);
if (endPort == null && listener != null)
{
listener.OnDropOutsidePort(edgeCandidate, mousePosition);
}
edgeCandidate.SetEnabled(true);
if (edgeCandidate.input != null)
{
edgeCandidate.input.portCapLit = false;
}
if (edgeCandidate.output != null)
{
edgeCandidate.output.portCapLit = false;
}
// If it is an existing valid edge then delete and notify the model (using DeleteElements()).
if (edgeCandidate.input != null && edgeCandidate.output != null)
{
// Save the current input and output before deleting the edge as they will be reset
Port oldInput = edgeCandidate.input;
Port oldOutput = edgeCandidate.output;
graphView.DeleteElements(new[] { edgeCandidate });
// Restore the previous input and output
edgeCandidate.input = oldInput;
edgeCandidate.output = oldOutput;
}
// otherwise, if it is an temporary edge then just remove it as it is not already known my the model
else
{
graphView.RemoveElement(edgeCandidate);
}
if (endPort != null)
{
if (endPort.direction == Direction.Output)
{
edgeCandidate.output = endPort;
}
else
{
edgeCandidate.input = endPort;
}
listener.OnDrop(graphView, edgeCandidate);
didConnect = true;
}
else
{
edgeCandidate.output = null;
edgeCandidate.input = null;
}
edgeCandidate.ResetLayer();
edgeCandidate = null;
compatiblePorts.Clear();
Reset(didConnect);
}
