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Picker: Don't panick at move_up/move_down when matches is empty (#818)

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Leoi Hung Kin 2021-10-09 19:34:10 +08:00 • committed by GitHub
parent eedcea7e6b
commit a6852fb88f
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6
helix-term/src/ui/picker.rs
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@ -270,12 +270,18 @@ impl<T> Picker<T> {
}
pub fn move_up(&mut self) {
if self.matches.is_empty() {
return;
}
let len = self.matches.len();
let pos = ((self.cursor + len.saturating_sub(1)) % len) % len;
self.cursor = pos;
}
pub fn move_down(&mut self) {
if self.matches.is_empty() {
return;
}
let len = self.matches.len();
let pos = (self.cursor + 1) % len;
self.cursor = pos;