This adds a method to programmatically collapse/uncollapse the two
subviews of our custom SplitView-class. It also implements a
keyDown-method so that the collapsing can be used with
Command-Shift-{Up,Down}.
Signed-off-by: Johannes Gilger <heipei@hackvalue.de>
That's why it's there, after all. This also makes the system
more robust and catches some more errors.
The next thing this enables is to also allow right-clicking
on refs in the commit list.
Johannes Gilger