ID for edge in progress after connect

[dhuebner]

When connecting a new created edge inside the applyReconnect function a new valid and unique id will be set instead of generic edge-in-progress. Doing so the new edge will remain visible after an update.

I tested the behavior with the random-graph example project. See dh/test-392-random-graph branch. Note: In the example only ports without a connection can be connected.

See #392

[spoenemann]

I tested on the branch you mentioned and got this when I tried to create two connections:

Error: Duplicate ID in model: edge-in-progress-target-anchor

Sometimes I also saw an other issue where the edge-in-progress does not follow the mouse cursor, but is shifted by some amount 🤔

[dhuebner]

@spoenemann
Yes, I notice it as well. Especially if one lose the focus (e.g. because of breakpoint) and goes back to the diagram. I don't think it is related to this change, but to the move handler. We need definitely look into it. I will spend some time to investigate it.

[spoenemann]

Could you look into the edge-in-progress-target-anchor? Maybe we have to rename or remove that, too.

[dhuebner]

They are normally removed automatically after you click somewhere. I don't think we should remove them right after reconnect. But maybe re-naming them is a good idea. We just need to make sure they are removed again when the edge is deselected.

[spoenemann]

👍