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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use std::sync::Arc;
use std::sync::atomic::{AtomicBool, Ordering};
use compositing_traits::ConstellationMsg;
use crossbeam_channel::{SendError, Sender};
use log::warn;
#[derive(Clone)]
pub(crate) struct ConstellationProxy {
sender: Sender<ConstellationMsg>,
disconnected: Arc<AtomicBool>,
}
impl ConstellationProxy {
pub fn new(sender: Sender<ConstellationMsg>) -> Self {
Self {
sender,
disconnected: Arc::default(),
}
}
pub fn disconnected(&self) -> bool {
self.disconnected.load(Ordering::SeqCst)
}
pub fn send(&self, msg: ConstellationMsg) {
if self.try_send(msg).is_err() {
warn!("Lost connection to Constellation. Will report to embedder.")
}
}
fn try_send(&self, msg: ConstellationMsg) -> Result<(), SendError<ConstellationMsg>> {
if self.disconnected() {
return Err(SendError(msg));
}
if let Err(error) = self.sender.send(msg) {
self.disconnected.store(true, Ordering::SeqCst);
return Err(error);
}
Ok(())
}
pub fn sender(&self) -> Sender<ConstellationMsg> {
self.sender.clone()
}
}
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