Implement most of the view mode (z).

pull/11/head
Blaž Hrastnik 4 years ago
parent 5edb374237
commit c64240b6ef

@ -1953,3 +1953,50 @@ pub fn space_mode(cx: &mut Context) {
} }
}) })
} }
pub fn view_mode(cx: &mut Context) {
cx.on_next_key(move |cx, event| {
if let KeyEvent {
code: KeyCode::Char(ch),
..
} = event
{
// if lock, call cx again
// TODO: temporarily show VIE in the mode list
match ch {
// center
'z' | 'c'
// top
| 't'
// bottom
| 'b' => {
let (view, doc) = cx.current();
let pos = doc.selection(view.id).cursor();
// TODO: extract this centering into a function to share with _goto?
let line = doc.text().char_to_line(pos);
let relative = match ch {
'z' | 'c' => view.area.height as usize / 2,
't' => 0,
'b' => view.area.height as usize,
_ => unreachable!()
};
view.first_line = line.saturating_sub(relative);
}
'm' => {
let (view, doc) = cx.current();
let pos = doc.selection(view.id).cursor();
let pos = coords_at_pos(doc.text().slice(..), pos);
const OFFSET: usize = 7; // gutters
view.first_col = pos.col.saturating_sub((view.area.width as usize - OFFSET) / 2);
},
'h' => (),
'j' => scroll(cx, 1, Direction::Forward),
'k' => scroll(cx, 1, Direction::Backward),
'l' => (),
_ => (),
}
}
})
}

@ -263,6 +263,7 @@ pub fn default() -> Keymaps {
// ctrl!('s') => commands::save_selection, // ctrl!('s') => commands::save_selection,
key!(' ') => commands::space_mode, key!(' ') => commands::space_mode,
key!('z') => commands::view_mode,
); );
// TODO: decide whether we want normal mode to also be select mode (kakoune-like), or whether // TODO: decide whether we want normal mode to also be select mode (kakoune-like), or whether
// we keep this separate select mode. More keys can fit into normal mode then, but it's weird // we keep this separate select mode. More keys can fit into normal mode then, but it's weird

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