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//! Process window events
use std::io;
use std::sync::{Arc, mpsc};
use std;
use glutin;
use input;
use sync::FairMutex;
use term::Term;
/// The event processor
pub struct Processor<N> {
notifier: N,
input_processor: input::Processor,
terminal: Arc<FairMutex<Term>>,
resize_tx: mpsc::Sender<(u32, u32)>,
}
impl<N: input::Notify> Processor<N> {
/// Create a new event processor
///
/// Takes a writer which is expected to be hooked up to the write end of a
/// pty.
pub fn new(
notifier: N,
terminal: Arc<FairMutex<Term>>,
resize_tx: mpsc::Sender<(u32, u32)>
) -> Processor<N> {
Processor {
notifier: notifier,
terminal: terminal,
input_processor: input::Processor::new(),
resize_tx: resize_tx,
}
}
fn handle_event(&mut self, event: glutin::Event) {
match event {
glutin::Event::Closed => panic!("window closed"), // TODO ...
glutin::Event::ReceivedCharacter(c) => {
match c {
// Ignore BACKSPACE and DEL. These are handled specially.
'\u{8}' | '\u{7f}' => (),
// OSX arrow keys send invalid characters; ignore.
'\u{f700}' | '\u{f701}' | '\u{f702}' | '\u{f703}' => (),
_ => {
let encoded = c.encode_utf8();
self.notifier.notify(encoded.as_slice().to_vec());
}
}
},
glutin::Event::Resized(w, h) => {
self.resize_tx.send((w, h)).expect("send new size");
// Acquire term lock
let mut terminal = self.terminal.lock();
terminal.dirty = true;
},
glutin::Event::KeyboardInput(state, _code, key, mods) => {
// Acquire term lock
let terminal = self.terminal.lock();
let processor = &mut self.input_processor;
let notifier = &mut self.notifier;
processor.process(state, key, mods, notifier, *terminal.mode());
},
_ => (),
}
}
/// Process at least one event and handle any additional queued events.
pub fn process_events(&mut self, window: &glutin::Window) {
for event in window.wait_events() {
self.handle_event(event);
break;
}
for event in window.poll_events() {
self.handle_event(event);
}
}
}
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