[GREENFOOT-66] Progress indicator needed for export
Export can take a rather long time. There should be a progress (or busy) indicator somewhere.
Maybe a non-modal dialogue with a twiddling (indefinite) progress bar, that has buttons "Open Web Page" and "Close" ("Open Web Page" is initially disabled, and enables when finished).
Issue metadata
- Issue type: Task
- Priority: Medium
- Fix versions: 1.4.6