add the ability to jump to a particular line

amtoine · Apr 15, 2024 · 7ae540f · 7ae540f
1 parent 0170923
commit 7ae540f
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Showing 2 changed files with 14 additions and 0 deletions.
diff --git a/src/handler.rs b/src/handler.rs
@@ -157,6 +157,10 @@ pub fn handle_key_events(
                 app.mode = Mode::Normal;
                 navigation::go_up_or_down_in_data(app, Direction::Up(n));
                 return Ok(TransitionResult::Continue);
+            } else if key_event.code == KeyCode::Char('g') {
+                app.mode = Mode::Normal;
+                navigation::go_up_or_down_in_data(app, Direction::At(n));
+                return Ok(TransitionResult::Continue);
             }
         }
         Mode::Insert => {

diff --git a/src/navigation.rs b/src/navigation.rs
@@ -13,6 +13,8 @@ pub enum Direction {
     Top,
     /// go to the bottom of the data, i.e. the last element or the last key
     Bottom,
+    /// go at a particular line in the data
+    At(usize),
 }
 
 /// go up or down in the data
@@ -67,6 +69,7 @@ pub(super) fn go_up_or_down_in_data(app: &mut App, direction: Direction) {
                             Direction::Down(step) => val.saturating_add(step).min(vals.len() - 1),
                             Direction::Top => 0,
                             Direction::Bottom => vals.len() - 1,
+                            Direction::At(id) => id.min(vals.len() - 1),
                         }
                     },
                     span,
@@ -97,6 +100,7 @@ pub(super) fn go_up_or_down_in_data(app: &mut App, direction: Direction) {
                                 }
                                 Direction::Top => 0,
                                 Direction::Bottom => cols.len() - 1,
+                                Direction::At(id) => id.min(cols.len() - 1),
                             };
 
                             cols[new_index].clone()
@@ -207,6 +211,9 @@ mod tests {
             (Direction::Bottom, 2),
             (Direction::Bottom, 2),
             (Direction::Top, 0),
+            (Direction::At(0), 0),
+            (Direction::At(1), 1),
+            (Direction::At(2), 2),
         ];
         for (direction, id) in sequence {
             go_up_or_down_in_data(&mut app, direction);
@@ -235,6 +242,9 @@ mod tests {
             (Direction::Bottom, "c"),
             (Direction::Bottom, "c"),
             (Direction::Top, "a"),
+            (Direction::At(0), "a"),
+            (Direction::At(1), "b"),
+            (Direction::At(2), "c"),
         ];
         for (direction, id) in sequence {
             go_up_or_down_in_data(&mut app, direction);