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extern crate terminal_cli;
extern crate termion;
#[cfg(unix)]
extern crate libc;
use terminal_cli::*;
use self::termion::*;
use self::termion::event::Key;
use self::termion::input::TermRead;
use self::termion::raw::IntoRawMode;
use std::io::prelude::*;
use std::io::{stdout, stdin, Bytes, Write, Stdout};
use std::fmt::Write as FmtWrite;
use std::fmt::Error as FmtError;
#[cfg(unix)]
fn init_cmode() {
use libc::c_int;
use std::mem;
use libc::termios as Termios;
extern "C" {
fn tcgetattr(fd: c_int, termptr: *mut Termios) -> c_int;
fn tcsetattr(fd: c_int, opt: c_int, termptr: *mut Termios) -> c_int;
fn cfmakeraw(termptr: *mut Termios);
}
fn get_terminal_attr() -> (Termios, c_int) {
unsafe {
let mut ios = mem::zeroed();
let attr = tcgetattr(0, &mut ios);
(ios, attr)
}
}
fn set_terminal_attr(ios: *mut Termios) -> c_int {
unsafe { tcsetattr(0, 0, ios) }
}
let (mut ios, exit) = get_terminal_attr();
if exit != 0 {
return;
}
ios.c_oflag |= libc::ONLCR | libc::OPOST;
if set_terminal_attr(&mut ios as *mut _) != 0 {
return;
}
}
#[cfg(not(unix))]
fn init_cmode() {
}
pub struct TerminalTermion {
decoder: TerminalKeyDecoder,
stdout: self::termion::raw::RawTerminal<Stdout>
}
impl TerminalTermion {
pub fn new() -> Self {
let stdin = stdin();
let mut stdout = stdout().into_raw_mode().unwrap();
init_cmode();
write!(stdout, "{}", termion::cursor::Show).unwrap();
stdout.flush().unwrap();
TerminalTermion {
decoder: TerminalKeyDecoder::new(),
stdout: stdout
}
}
}
impl Drop for TerminalTermion {
fn drop(&mut self) {
write!(self.stdout, "{}", self::termion::cursor::Show).unwrap();
}
}
impl CharacterTerminalWriter for TerminalTermion {
fn print(&mut self, bytes: &[u8]) {
self.stdout.write(bytes);
self.stdout.flush().unwrap();
}
}
impl FmtWrite for TerminalTermion {
fn write_str(&mut self, s: &str) -> Result<(), FmtError> {
self.print(s.as_bytes());
Ok(())
}
}
impl CharacterTerminalReader for TerminalTermion {
fn read(&mut self) -> Result<::terminal_cli::Key, TerminalError> {
let mut input = stdin().bytes();
loop {
match input.next() {
Some(Ok(b)) => {
let d = self.decoder.decode(b);
match d {
Ok(k) => {
return Ok(k);
},
Err(KeyDecoderError::MoreInputRequired) => {
continue;
},
Err(KeyDecoderError::UnknownSequence) => {
continue;
}
}
},
Some(Err(_)) => {
return Err(TerminalError::Error);
},
None => {
return Err(TerminalError::EndOfStream);
}
}
}
}
}