50 lines
1.0 KiB
Rust
50 lines
1.0 KiB
Rust
use tui::widgets::ListState;
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pub mod event;
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pub struct StatefulList<T> {
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pub state: ListState,
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pub items: Vec<T>,
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}
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impl<T> StatefulList<T> {
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pub fn with_items(items: Vec<T>) -> StatefulList<T> {
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StatefulList {
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state: ListState::default(),
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items,
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}
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}
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pub fn next(&mut self) {
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let i = match self.state.selected() {
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Some(i) => {
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if i >= self.items.len() - 1 {
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0
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} else {
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i + 1
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}
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}
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None => 0,
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};
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self.state.select(Some(i));
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}
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pub fn previous(&mut self) {
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let i = match self.state.selected() {
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Some(i) => {
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if i == 0 {
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self.items.len() - 1
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} else {
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i - 1
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}
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}
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None => 0,
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};
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self.state.select(Some(i));
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}
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pub fn unselect(&mut self) {
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self.state.select(None);
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}
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}
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