use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
pub struct KeyChord {
pub code: KeyCode,
pub modifiers: KeyModifiers,
}
impl KeyChord {
pub fn new(code: KeyCode, modifiers: KeyModifiers) -> Self {
Self { code, modifiers }
}
pub fn from_event(event: &KeyEvent) -> Self {
let mut modifiers = event.modifiers;
let mut code = event.code;
if let KeyCode::Char(ch) = code {
if modifiers == KeyModifiers::SHIFT && ch.is_ascii_alphabetic() {
code = KeyCode::Char(ch.to_ascii_lowercase());
}
}
if event.code == KeyCode::BackTab {
modifiers -= KeyModifiers::SHIFT;
}
Self { code, modifiers }
}
pub fn display_string(&self) -> String {
let mut out = String::new();
if self.modifiers.contains(KeyModifiers::CONTROL) {
out.push_str("Ctrl+");
}
if self.modifiers.contains(KeyModifiers::ALT) {
out.push_str("Alt+");
}
if self.modifiers.contains(KeyModifiers::SHIFT) {
out.push_str("Shift+");
}
match self.code {
KeyCode::Char(c) => out.push(c),
KeyCode::Enter => out.push_str("Enter"),
KeyCode::Tab => out.push_str("Tab"),
KeyCode::BackTab => out.push_str("BackTab"),
KeyCode::Backspace => out.push_str("Backspace"),
KeyCode::Esc => out.push_str("Esc"),
KeyCode::Up => out.push_str("Up"),
KeyCode::Down => out.push_str("Down"),
KeyCode::Left => out.push_str("Left"),
KeyCode::Right => out.push_str("Right"),
other => out.push_str(&format!("{other:?}")),
}
out
}
}