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|
use crossterm::event::{KeyCode, MouseEvent};
use crate::{KeyEvent, StandardEvent};
/// An event, either from an input device, system change or action event.
#[derive(Debug, PartialOrd, PartialEq, Eq, Clone, Copy)]
#[allow(clippy::exhaustive_enums)]
pub enum Event<CustomEvent: crate::CustomEvent> {
/// A keyboard event.
Key(KeyEvent),
/// An action event.
Standard(StandardEvent),
/// A mouse event.
Mouse(MouseEvent),
/// An empty event.
None,
/// A terminal resize event.
Resize(u16, u16),
/// Custom application defined events
MetaEvent(CustomEvent),
}
impl<CustomEvent: crate::CustomEvent> From<crossterm::event::Event> for Event<CustomEvent> {
#[inline]
fn from(event: crossterm::event::Event) -> Self {
match event {
crossterm::event::Event::Key(evt) => Self::Key(KeyEvent::from(evt)),
crossterm::event::Event::Mouse(evt) => Self::Mouse(evt),
crossterm::event::Event::Resize(width, height) => Self::Resize(width, height),
// ignore these events for now, as we don't need them
crossterm::event::Event::FocusGained
| crossterm::event::Event::FocusLost
| crossterm::event::Event::Paste(_) => Self::None,
}
}
}
impl<CustomEvent: crate::CustomEvent> From<KeyEvent> for Event<CustomEvent> {
#[inline]
fn from(key_event: KeyEvent) -> Self {
Self::Key(key_event)
}
}
impl<CustomEvent: crate::CustomEvent> From<MouseEvent> for Event<CustomEvent> {
#[inline]
fn from(mouse_event: MouseEvent) -> Self {
Self::Mouse(mouse_event)
}
}
impl<CustomEvent: crate::CustomEvent> From<StandardEvent> for Event<CustomEvent> {
#[inline]
fn from(event: StandardEvent) -> Self {
Self::Standard(event)
}
}
impl<CustomEvent: crate::CustomEvent> From<KeyCode> for Event<CustomEvent> {
#[inline]
fn from(code: KeyCode) -> Self {
Self::Key(KeyEvent::from(code))
}
}
impl<CustomEvent: crate::CustomEvent> From<char> for Event<CustomEvent> {
#[inline]
fn from(c: char) -> Self {
Self::Key(KeyEvent::from(KeyCode::Char(c)))
}
}
#[cfg(test)]
mod tests {
use crossterm::{
event as ct_event,
event::{KeyModifiers, MouseEventKind},
};
use super::*;
use crate::testutil::local::Event;
#[test]
fn from_crossterm_key_event() {
let event = Event::from(ct_event::Event::Key(ct_event::KeyEvent::new(
KeyCode::Null,
KeyModifiers::empty(),
)));
assert_eq!(event, Event::Key(KeyEvent::new(KeyCode::Null, KeyModifiers::empty())));
}
#[test]
fn from_crossterm_key_event_char_with_modifier() {
let event = Event::from(ct_event::Event::Key(ct_event::KeyEvent::new(
KeyCode::Char('?'),
KeyModifiers::SHIFT,
)));
assert_eq!(
event,
Event::Key(KeyEvent::new(KeyCode::Char('?'), KeyModifiers::SHIFT))
);
}
#[test]
fn from_crossterm_mouse_event() {
let mouse_event = MouseEvent {
kind: MouseEventKind::Moved,
column: 0,
row: 0,
modifiers: KeyModifiers::empty(),
};
let event = Event::from(crossterm::event::Event::Mouse(mouse_event));
assert_eq!(event, Event::Mouse(mouse_event));
}
#[test]
fn from_crossterm_resize_event() {
let event = Event::from(crossterm::event::Event::Resize(100, 100));
assert_eq!(event, Event::Resize(100, 100));
}
#[test]
fn from_crossterm_focused_gained_event() {
let event = Event::from(crossterm::event::Event::FocusGained);
assert_eq!(event, Event::None);
}
#[test]
fn from_crossterm_focused_lost_event() {
let event = Event::from(crossterm::event::Event::FocusLost);
assert_eq!(event, Event::None);
}
#[test]
fn from_crossterm_paste_event() {
let event = Event::from(crossterm::event::Event::Paste(String::from("test")));
assert_eq!(event, Event::None);
}
#[test]
fn from_meta_event() {
let event = Event::from(StandardEvent::Kill);
assert_eq!(event, Event::Standard(StandardEvent::Kill));
}
#[test]
fn from_key_code() {
let event = Event::from(KeyCode::Null);
assert_eq!(event, Event::Key(KeyEvent::new(KeyCode::Null, KeyModifiers::empty())));
}
#[test]
fn from_mouse_event() {
let event = Event::from(MouseEvent {
kind: MouseEventKind::Moved,
column: 0,
row: 0,
modifiers: KeyModifiers::empty(),
});
assert_eq!(
event,
Event::Mouse(MouseEvent {
kind: MouseEventKind::Moved,
column: 0,
row: 0,
modifiers: KeyModifiers::empty(),
})
);
}
#[test]
fn from_char() {
let event = Event::from('a');
assert_eq!(
event,
Event::Key(KeyEvent::new(KeyCode::Char('a'), KeyModifiers::empty()))
);
}
}
|
