Instead of loop callbacks from LegacyCore, the equivalent functionality is now handled as part of the CanvasWindow's widget tree. In the case of the server, which has no UI, loop iteration is run in ServerSystem.
At present time, the best way to model the client UI is to have two root widgets, one for the normal UI and one for the busy UI.
Todo for later: Merge the busy mode visualization into BusyWidget.
Refactor|Client|Server: Removed loop callbacks, added BusyWidget
Instead of loop callbacks from LegacyCore, the equivalent functionality
is now handled as part of the CanvasWindow's widget tree. In the case
of the server, which has no UI, loop iteration is run in ServerSystem.
At present time, the best way to model the client UI is to have two
root widgets, one for the normal UI and one for the busy UI.
Todo for later: Merge the busy mode visualization into BusyWidget.