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// Copyright 2016 Joe Wilm, The Alacritty Project Contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use std::fs::OpenOptions;
use std::os::windows::fs::OpenOptionsExt;
use std::os::windows::io::{FromRawHandle, IntoRawHandle};
use std::u16;
use log::info;
use mio_named_pipes::NamedPipe;
use winapi::um::winbase::FILE_FLAG_OVERLAPPED;
use winpty::{Config as WinptyConfig, ConfigFlags, MouseMode, SpawnConfig, SpawnFlags, Winpty};
use crate::config::Config;
use crate::event::OnResize;
use crate::term::SizeInfo;
use crate::tty::windows::child::ChildExitWatcher;
use crate::tty::windows::{cmdline, Pty};
pub use winpty::Winpty as Agent;
pub fn new<C>(config: &Config<C>, size: &SizeInfo, _window_id: Option<usize>) -> Pty {
// Create config.
let mut wconfig = WinptyConfig::new(ConfigFlags::empty()).unwrap();
wconfig.set_initial_size(size.cols().0 as i32, size.lines().0 as i32);
wconfig.set_mouse_mode(&MouseMode::Auto);
// Start agent.
let mut agent = Winpty::open(&wconfig).unwrap();
let (conin, conout) = (agent.conin_name(), agent.conout_name());
let cmdline = cmdline(&config);
// Spawn process.
let spawnconfig = SpawnConfig::new(
SpawnFlags::AUTO_SHUTDOWN | SpawnFlags::EXIT_AFTER_SHUTDOWN,
None, // appname.
Some(&cmdline),
config.working_directory.as_ref().map(|p| p.as_path()),
None, // Env.
)
.unwrap();
let default_opts = &mut OpenOptions::new();
default_opts.share_mode(0).custom_flags(FILE_FLAG_OVERLAPPED);
let (conout_pipe, conin_pipe);
unsafe {
conout_pipe = NamedPipe::from_raw_handle(
default_opts.clone().read(true).open(conout).unwrap().into_raw_handle(),
);
conin_pipe = NamedPipe::from_raw_handle(
default_opts.clone().write(true).open(conin).unwrap().into_raw_handle(),
);
};
agent.spawn(&spawnconfig).unwrap();
let child_watcher = ChildExitWatcher::new(agent.raw_handle()).unwrap();
Pty {
backend: super::PtyBackend::Winpty(agent),
conout: super::EventedReadablePipe::Named(conout_pipe),
conin: super::EventedWritablePipe::Named(conin_pipe),
read_token: 0.into(),
write_token: 0.into(),
child_event_token: 0.into(),
child_watcher,
}
}
impl OnResize for Agent {
fn on_resize(&mut self, sizeinfo: &SizeInfo) {
let (cols, lines) = (sizeinfo.cols().0, sizeinfo.lines().0);
if cols > 0 && cols <= u16::MAX as usize && lines > 0 && lines <= u16::MAX as usize {
self.set_size(cols as u16, lines as u16)
.unwrap_or_else(|_| info!("Unable to set WinPTY size, did it die?"));
}
}
}
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