Drop indicator like Visual Studio/rc-dock

[adityatoshniwal]

trafficstars

Is your feature request related to a problem? Please describe. Can we have drop indicator like Visual Studio/rc-dock?

https://ticlo.github.io/rc-dock/interfaces/docklayout.layoutprops.html#dropmode

Describe alternatives you've considered We're using rc-dock in pgAdmin, but I'm planning to move to dockview as rc-dock is not much maintained. Plus it has issues with React 19. dockview looks promising but missing the drop mode.

[hllshiro]

I also came to consult because it may not get the expected results when dragging. As in the example below, the two groups in the middle are locked, and after dragging the bottom panel to another position, it cannot return to the previous position.

https://github.com/user-attachments/assets/bd94b2fb-e993-4b1c-a07d-37988b769708

[brianblakely]

Dockview already has a drop indicator.