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use std::{collections::VecDeque, path::Path, path::PathBuf};
#[derive(Debug, Default)]
pub struct JumpList {
pub pos: usize,
pub list: VecDeque<PathBuf>,
}
impl JumpList {
pub fn add(&mut self, p: &Path) {
if self.pos != 0 {
for _i in 0..self.pos {
self.list.pop_front();
}
self.pos = 0;
}
self.list.push_front(p.to_path_buf());
}
pub fn get_backward(&self) -> Option<PathBuf> {
if self.pos >= self.list.len() - 1 {
None
} else {
self.list.get(self.pos + 1).cloned()
}
}
pub fn pos_backward(&mut self) {
if self.pos < self.list.len() {
self.pos += 1;
}
}
pub fn get_forward(&self) -> Option<PathBuf> {
if self.pos == 0 {
None
} else {
self.list.get(self.pos - 1).cloned()
}
}
pub fn pos_forward(&mut self) {
if self.pos > 0 {
self.pos -= 1;
}
}
pub fn remove_backward(&mut self) {
self.list.remove(self.pos + 1);
}
pub fn remove_forward(&mut self) {
self.list.remove(self.pos - 1);
}
}
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