public override void OnStartDragging(GraphElement ge)
{
if (ge is TokenDeclaration tokenDeclaration)
{
VseGraphView gView = GetFirstOfType <VseGraphView>();
VisualElement tokenParent = tokenDeclaration.parent;
int childIndex = tokenDeclaration.FindIndexInParent();
gView.RemoveElement(tokenDeclaration);
tokenDeclaration.SetClasses();
gView.AddElement(tokenDeclaration);
// By removing the tokenDeclaration from the graph view, we also removed it from the selection.
// We need to add the tokenDeclaration back in order to properly drag.
tokenDeclaration.Select(gView, true);
tokenDeclaration.BringToFront();
TokenDeclaration placeHolderTokenDeclaration = tokenDeclaration.Clone();
placeHolderTokenDeclaration.AddToClassList("placeHolder");
tokenParent.Insert(childIndex, placeHolderTokenDeclaration);
placeHolderTokenDeclaration.MarkDirtyRepaint();
gView.AddPlaceholderToken(tokenDeclaration);
}
else
{
var originalWidth = ge.resolvedStyle.width;
var originalHeight = ge.resolvedStyle.height;
base.OnStartDragging(ge);
// Revert to same width and height after element became unstacked
ge.style.width = originalWidth;
ge.style.height = originalHeight;
}
}
public TokenDeclaration Clone()
{
var clone = new TokenDeclaration(m_Store, Declaration, m_GraphView)
{
viewDataKey = Guid.NewGuid().ToString()
};
if (Declaration is LoopVariableDeclarationModel loopVariableDeclarationModel)
{
VseUtility.AddTokenIcon(clone, loopVariableDeclarationModel.TitleComponentIcon);
}
return(clone);
}
