Extract CEF rendered UI into a separate process and crate

desktop/ui/src/events.rs

@@ -0,0 +1,41 @@
+use std::sync::Arc;
+use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::mpsc::Receiver;
+
+use crate::UiEvent;
+
+#[derive(Clone)]
+pub(crate) struct EventQueue {
+	sender: std::sync::mpsc::Sender<UiEvent>,
+	terminated: Arc<AtomicBool>,
+}
+
+impl EventQueue {
+	pub(crate) fn new() -> (Self, Receiver<UiEvent>) {
+		let (sender, receiver) = std::sync::mpsc::channel();
+		(
+			Self {
+				sender,
+				terminated: Arc::new(AtomicBool::new(false)),
+			},
+			receiver,
+		)
+	}
+
+	pub(crate) fn send(&self, event: UiEvent) {
+		let _ = self.sender.send(event);
+	}
+
+	pub(crate) fn terminate(&self, event: UiEvent) {
+		let _ = self.sender.send(event);
+		self.terminated.store(true, Ordering::SeqCst);
+	}
+
+	pub(crate) fn mark_terminated(&self) {
+		self.terminated.store(true, Ordering::SeqCst);
+	}
+
+	pub(crate) fn is_terminated(&self) -> bool {
+		self.terminated.load(Ordering::SeqCst)
+	}
+}