Mark the table cell holding the selection, so the user can see which column
the caret is in. A table of empty cells is otherwise ambiguous.
This is a DOM affordance, not document state: the class is applied directly
rather than through a transaction, so it never enters the document or the
history. Returns a disposer.
Mark the table cell holding the selection, so the user can see which column the caret is in. A table of empty cells is otherwise ambiguous.
This is a DOM affordance, not document state: the class is applied directly rather than through a transaction, so it never enters the document or the history. Returns a disposer.