Trigger the ChangeContainerOperation

[SchmidtMarc]

Hello,

I'm currently implementing a GLSP-based editor for hierarchical state machines. With the help of the discussion 692, I managed to nest nodes using compartments. Now I want to implement the ChangeContainerOperation but I couldn't find out how to trigger this action. I expected dragging and dropping a contained node to another container would work, but it doesn't.
It seems like there is no implementation of the ChangeContainerOperation in the workflow example.
The questions:

• What triggers this action?
• Do we have to implement something on the client side?

Thanks for your help
Marc Schmidt

[CamilleLetavernier]

Hi Marc,

At the moment, this isn't implemented in the example project, nor in the base framework. To support this, one needs to update the ChangeBoundsTool in change-bounds-tool.ts, to trigger a ChangeContainerOperation when the target node is different from the current parent (And when the dragged node supports reparenting; based on the current ShapeTypeHints configuration)

The corresponding handler must also be added on the server.

There may also be issues with Feedback/Z-index during the move/reparent operation: #501

[SchmidtMarc]

Hello Camille,

thanks for your reply and the rough overview of what needs to be done for this feature. When I find time and understand the client code better, I will implement it and create a pull request.