elm_entry: Cursor disappears on calling select function in an empty entry.
Issue: Selection cannot happen on an empty entry, if selection functions
are called on empty entry, cursor is hidden, even if entry is focused.
Soln: Check for whether entry is empty or not before proceeding with selection.
- Call select_all, select_region_set on a focused entry
- You can observe cursor cannot be seen.
Reviewed By: jpeg
Subscribers: cedric, jpeg
Differential Revision: https://phab.enlightenment.org/D4862