Improve keyboard handling
Created by: ederag
Shortcuts (#230 (closed)) Arrows to navigate between dates and facts.
checks
The following are tests, and show potential uses.
Left/Right arrow: change dates
With nothing selected Ctrl-R: do nothing Ctrl-N: new empty fact Ctrl-+: new empty fact Ctrl-Enter or Enter: do nothing
Select one fact Ctrl-R clone, starting now Ctrl-N new empty fact Ctrl-+ clone, starting now Ctrl-Enter or Enter: edit selected fact
Create a new fact if not selected Delete: do nothing select the fact Delete: fact deleted
With enough dates to have more facts than can fit in the overview, to check scrolling, check that the following keys work also right at the start of overview, (without having to focus on the FactTree itself) Up, Down, Home, End (change selected fact) Page up, Page down, (just scroll)
With an ongoing fact Ctrl+Space: stop