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#[derive(Debug, Clone)]
pub struct Frame {
screen: vt100::Screen,
delay: std::time::Duration,
}
impl Frame {
pub fn new(screen: vt100::Screen, delay: std::time::Duration) -> Self {
Self { screen, delay }
}
pub fn into_screen(self) -> vt100::Screen {
self.screen
}
pub fn delay(&self) -> std::time::Duration {
self.delay
}
}
pub struct FrameData {
frames: Vec<Frame>,
done_reading: bool,
new_frame_w: async_std::channel::Sender<Option<usize>>,
new_frame_r: async_std::channel::Receiver<Option<usize>>,
}
impl FrameData {
pub fn new() -> Self {
let (new_frame_w, new_frame_r) = async_std::channel::unbounded();
Self {
frames: vec![],
done_reading: false,
new_frame_w,
new_frame_r,
}
}
pub fn get(&self, i: usize) -> Option<&Frame> {
self.frames.get(i)
}
pub fn count(&self) -> usize {
self.frames.len()
}
pub async fn add_frame(&mut self, frame: Frame) {
self.frames.push(frame);
self.new_frame_w
.send(Some(self.frames.len()))
.await
.unwrap();
}
pub async fn done_reading(&mut self) {
self.done_reading = true;
self.new_frame_w.send(None).await.unwrap();
}
pub fn wait_for_frame(
&self,
i: usize,
) -> std::pin::Pin<
Box<dyn std::future::Future<Output = bool> + 'static + Send>,
> {
if i < self.frames.len() {
return Box::pin(std::future::ready(true));
}
if self.done_reading {
return Box::pin(std::future::ready(false));
}
let new_frame_r = self.new_frame_r.clone();
Box::pin(async move {
while let Some(new_len) = new_frame_r.recv().await.unwrap() {
if i < new_len {
return true;
}
}
false
})
}
}
pub fn load_from_file(
frames: async_std::sync::Arc<async_std::sync::Mutex<FrameData>>,
fh: async_std::fs::File,
event_w: async_std::channel::Sender<crate::event::Event>,
) {
async_std::task::spawn(async move {
let mut reader = ttyrec::Reader::new(fh);
let size = terminal_size::terminal_size().map_or(
(24, 80),
|(terminal_size::Width(w), terminal_size::Height(h))| (h, w),
);
let mut parser = vt100::Parser::new(size.0, size.1, 0);
while let Ok(frame) = reader.read_frame().await {
let delay = reader.offset().map_or_else(
|| std::time::Duration::from_secs(0),
|time| frame.time - time,
);
parser.process(&frame.data);
let mut frames = frames.lock_arc().await;
frames
.add_frame(Frame::new(parser.screen().clone(), delay))
.await;
event_w
.send(crate::event::Event::FrameLoaded(Some(frames.count())))
.await
.unwrap();
}
frames.lock_arc().await.done_reading().await;
event_w
.send(crate::event::Event::FrameLoaded(None))
.await
.unwrap();
});
}
|
