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use super::*;
use crate::sys::unix::{get_tty, read_char_raw};
use crossterm_utils::{csi, write_cout, Result};
use std::char;
use std::io::{Read, Write};
pub struct UnixInput;
impl UnixInput {
pub fn new() -> UnixInput {
UnixInput {}
}
}
impl ITerminalInput for UnixInput {
fn read_char(&self) -> io::Result<char> {
read_char_raw()
}
fn read_async(&self) -> AsyncReader {
AsyncReader::new(Box::new(move |event_tx, cancellation_token| {
for i in get_tty().unwrap().bytes() {
if event_tx.send(i.unwrap()).is_err() {
return;
}
if cancellation_token.load(Ordering::SeqCst) {
return;
}
}
}))
}
fn read_until_async(&self, delimiter: u8) -> AsyncReader {
AsyncReader::new(Box::new(move |event_tx, cancellation_token| {
for byte in get_tty().unwrap().bytes() {
let byte = byte.unwrap();
let end_of_stream = byte == delimiter;
let send_error = event_tx.send(byte).is_err();
if end_of_stream || send_error || cancellation_token.load(Ordering::SeqCst) {
return;
}
}
}))
}
fn read_sync(&self) -> SyncReader {
SyncReader {
source: Box::from(get_tty().unwrap()),
leftover: None,
}
}
fn enable_mouse_mode(&self) -> Result<()> {
write_cout!(&format!(
"{}h{}h{}h{}h",
csi!("?1000"),
csi!("?1002"),
csi!("?1015"),
csi!("?1006")
))?;
Ok(())
}
fn disable_mouse_mode(&self) -> Result<()> {
write_cout!(&format!(
"{}l{}l{}l{}l",
csi!("?1006"),
csi!("?1015"),
csi!("?1002"),
csi!("?1000")
))?;
Ok(())
}
}
pub struct SyncReader {
source: Box<std::fs::File>,
leftover: Option<u8>,
}
impl Iterator for SyncReader {
type Item = InputEvent;
fn next(&mut self) -> Option<Self::Item> {
let source = &mut self.source;
if let Some(c) = self.leftover {
self.leftover = None;
if let Ok(e) = parse_event(c, &mut source.bytes().flatten()) {
return Some(e);
} else {
return None;
}
}
let mut buf = [0u8; 2];
let res = match source.read(&mut buf) {
Ok(0) => return None,
Ok(1) => match buf[0] {
b'\x1B' => return Some(InputEvent::Keyboard(KeyEvent::Esc)),
c => {
if let Ok(e) = parse_event(c, &mut source.bytes().flatten()) {
return Some(e);
} else {
return None;
}
}
},
Ok(2) => {
let option_iter = &mut Some(buf[1]).into_iter();
let iter = option_iter.map(|c| Ok(c)).chain(source.bytes());
if let Ok(e) = parse_event(buf[0], &mut iter.flatten()) {
self.leftover = option_iter.next();
Some(e)
} else {
None
}
}
Ok(_) => unreachable!(),
Err(_) => return None,
};
res
}
}