fix: crash on resize (#1683)

Without this, resizing the terminal prints "Error: The cursor position
could not be read within a normal duration" and quits the app.
This commit is contained in:
Jeremy Rose
2025-07-25 14:23:38 -07:00
committed by GitHub
parent 75b4008094
commit c66c99c5b5

View File

@@ -88,39 +88,51 @@ impl App<'_> {
{
let app_event_tx = app_event_tx.clone();
std::thread::spawn(move || {
while let Ok(event) = crossterm::event::read() {
match event {
crossterm::event::Event::Key(key_event) => {
app_event_tx.send(AppEvent::KeyEvent(key_event));
}
crossterm::event::Event::Resize(_, _) => {
app_event_tx.send(AppEvent::RequestRedraw);
}
crossterm::event::Event::Mouse(MouseEvent {
kind: MouseEventKind::ScrollUp,
..
}) => {
scroll_event_helper.scroll_up();
}
crossterm::event::Event::Mouse(MouseEvent {
kind: MouseEventKind::ScrollDown,
..
}) => {
scroll_event_helper.scroll_down();
}
crossterm::event::Event::Paste(pasted) => {
// Many terminals convert newlines to \r when
// pasting, e.g. [iTerm2][]. But [tui-textarea
// expects \n][tui-textarea]. This seems like a bug
// in tui-textarea IMO, but work around it for now.
// [tui-textarea]: https://github.com/rhysd/tui-textarea/blob/4d18622eeac13b309e0ff6a55a46ac6706da68cf/src/textarea.rs#L782-L783
// [iTerm2]: https://github.com/gnachman/iTerm2/blob/5d0c0d9f68523cbd0494dad5422998964a2ecd8d/sources/iTermPasteHelper.m#L206-L216
let pasted = pasted.replace("\r", "\n");
app_event_tx.send(AppEvent::Paste(pasted));
}
_ => {
// Ignore any other events.
loop {
// This timeout is necessary to avoid holding the event lock
// that crossterm::event::read() acquires. In particular,
// reading the cursor position (crossterm::cursor::position())
// needs to acquire the event lock, and so will fail if it
// can't acquire it within 2 sec. Resizing the terminal
// crashes the app if the cursor position can't be read.
if let Ok(true) = crossterm::event::poll(Duration::from_millis(100)) {
if let Ok(event) = crossterm::event::read() {
match event {
crossterm::event::Event::Key(key_event) => {
app_event_tx.send(AppEvent::KeyEvent(key_event));
}
crossterm::event::Event::Resize(_, _) => {
app_event_tx.send(AppEvent::RequestRedraw);
}
crossterm::event::Event::Mouse(MouseEvent {
kind: MouseEventKind::ScrollUp,
..
}) => {
scroll_event_helper.scroll_up();
}
crossterm::event::Event::Mouse(MouseEvent {
kind: MouseEventKind::ScrollDown,
..
}) => {
scroll_event_helper.scroll_down();
}
crossterm::event::Event::Paste(pasted) => {
// Many terminals convert newlines to \r when
// pasting, e.g. [iTerm2][]. But [tui-textarea
// expects \n][tui-textarea]. This seems like a bug
// in tui-textarea IMO, but work around it for now.
// [tui-textarea]: https://github.com/rhysd/tui-textarea/blob/4d18622eeac13b309e0ff6a55a46ac6706da68cf/src/textarea.rs#L782-L783
// [iTerm2]: https://github.com/gnachman/iTerm2/blob/5d0c0d9f68523cbd0494dad5422998964a2ecd8d/sources/iTermPasteHelper.m#L206-L216
let pasted = pasted.replace("\r", "\n");
app_event_tx.send(AppEvent::Paste(pasted));
}
_ => {
// Ignore any other events.
}
}
}
} else {
// Timeout expired, no `Event` is available
}
}
});