diff options
Diffstat (limited to 'src/event/event.rs')
| -rwxr-xr-x | src/event/event.rs | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/src/event/event.rs b/src/event/event.rs deleted file mode 100755 index 439c31b..0000000 --- a/src/event/event.rs +++ /dev/null @@ -1,79 +0,0 @@ -use crate::app::AppResult; -use crossterm::event::{self, Event as CrosstermEvent, KeyEvent, MouseEvent}; -use std::sync::mpsc; -use std::thread; -use std::time::{Duration, Instant}; - -/// Terminal events. -#[derive(Clone, Copy, Debug)] -pub enum Event { - /// Terminal tick. - Tick, - /// Key press. - Key(KeyEvent), - /// Mouse click/scroll. - Mouse(MouseEvent), - /// Terminal resize. - Resize(u16, u16), -} - -/// Terminal event handler. -#[allow(dead_code)] -#[derive(Debug)] -pub struct EventHandler { - /// Event sender channel. - sender: mpsc::Sender<Event>, - /// Event receiver channel. - receiver: mpsc::Receiver<Event>, - /// Event handler thread. - handler: thread::JoinHandle<()>, -} - -impl EventHandler { - /// Constructs a new instance of [`EventHandler`]. - pub fn new(tick_rate: u64) -> Self { - let tick_rate = Duration::from_millis(tick_rate); - let (sender, receiver) = mpsc::channel(); - let handler = { - let sender = sender.clone(); - thread::spawn(move || { - let mut last_tick = Instant::now(); - loop { - let timeout = tick_rate - .checked_sub(last_tick.elapsed()) - .unwrap_or(tick_rate); - - if event::poll(timeout).expect("failed to poll new events") { - match event::read().expect("unable to read event") { - CrosstermEvent::Key(e) => sender.send(Event::Key(e)), - CrosstermEvent::Mouse(e) => sender.send(Event::Mouse(e)), - CrosstermEvent::Resize(w, h) => sender.send(Event::Resize(w, h)), - CrosstermEvent::FocusGained => Ok(()), - CrosstermEvent::FocusLost => Ok(()), - CrosstermEvent::Paste(_) => unimplemented!(), - } - .expect("failed to send terminal event") - } - - if last_tick.elapsed() >= tick_rate { - sender.send(Event::Tick).expect("failed to send tick event"); - last_tick = Instant::now(); - } - } - }) - }; - Self { - sender, - receiver, - handler, - } - } - - /// Receive the next event from the handler thread. - /// - /// This function will always block the current thread if - /// there is no data available and it's possible for more data to be sent. - pub fn next(&self) -> AppResult<Event> { - Ok(self.receiver.recv()?) - } -} |
