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File list can now be rewinded

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veeso
2021-09-28 12:59:43 +02:00
parent b9a0e516c6
commit f3e694d3d6
2 changed files with 26 additions and 12 deletions
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35
src/ui/components/file_list.rs
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@@ -188,21 +188,27 @@ impl OwnStates {
/// ### incr_list_index
///
/// Incremenet list index
pub fn incr_list_index(&mut self) {
/// Incremenet list index.
/// If `can_rewind` is `true` the index rewinds when boundary is reached
pub fn incr_list_index(&mut self, can_rewind: bool) {
// Check if index is at last element
if self.list_index + 1 < self.list_len() {
self.list_index += 1;
} else if can_rewind {
self.list_index = 0;
}
}
/// ### decr_list_index
///
/// Decrement list index
pub fn decr_list_index(&mut self) {
/// If `can_rewind` is `true` the index rewinds when boundary is reached
pub fn decr_list_index(&mut self, can_rewind: bool) {
// Check if index is bigger than 0
if self.list_index > 0 {
self.list_index -= 1;
} else if self.list_len() > 0 && can_rewind {
self.list_index = self.list_len() - 1;
}
}
@@ -388,25 +394,25 @@ impl Component for FileList {
match key.code {
KeyCode::Down => {
// Update states
self.states.incr_list_index();
self.states.incr_list_index(true);
Msg::None
}
KeyCode::Up => {
// Update states
self.states.decr_list_index();
self.states.decr_list_index(true);
Msg::None
}
KeyCode::PageDown => {
// Update states
for _ in 0..8 {
self.states.incr_list_index();
self.states.incr_list_index(false);
}
Msg::None
}
KeyCode::PageUp => {
// Update states
for _ in 0..8 {
self.states.decr_list_index();
self.states.decr_list_index(false);
}
Msg::None
}
@@ -525,14 +531,21 @@ mod tests {
assert_eq!(states.selected[0], 4);
// Index
states.init_list_states(2);
states.incr_list_index();
// Incr
states.incr_list_index(false);
assert_eq!(states.list_index(), 1);
states.incr_list_index();
states.incr_list_index(false);
assert_eq!(states.list_index(), 1);
states.decr_list_index();
states.incr_list_index(true);
assert_eq!(states.list_index(), 0);
states.decr_list_index();
// Decr
states.list_index = 1;
states.decr_list_index(false);
assert_eq!(states.list_index(), 0);
states.decr_list_index(false);
assert_eq!(states.list_index(), 0);
states.decr_list_index(true);
assert_eq!(states.list_index(), 1);
// Try fixing index
states.init_list_states(5);
states.list_index = 4;