UploadWizard/Geolocation/Use cases

Use case: screenshot
Location desired: none
EXIF location: none
Result: widget in closed state shows "empty map".  No action needed

Use case: picture of the moon. 
Location desired: none
EXIF location: yes
Result: widget in closed state shows EXIF location. Click to open map. Press on button to "remove from map". Confirm removed when widget is closed, now I am invited to add a location.

Use case: my camera doesn't have GPS
Location desired: yes
EXIF location: no
Result: widget in closed state shows "empty map". Open map.
Move map, click on map, until correct. Close widget by pressing "done".
Confirm correct placement with closed widget which now shows marker in right place. 

Use case: faulty GPS in camera
Location desired: yes
EXIF location: yes, but not right
Result: widget in closed state shows location in small map. I notice this is wrong, or open map to check. 
Move map, click on map, until correct. Close widget by pressing done.
Confirm correct placement with closed widget which now shows marker in right place. 

Use case: everything worked out better than expected
Location desired: yes
EXIF location: correct
Result: widget shows the right thing. No action is needed. But I want to double-check. Open widget to check, then press "Done" to close.