some fixes

im sorry i ever doubted u gtkrs

src/mpris.rs

@@ -2,57 +2,31 @@ mod player;
 pub use player::Player;
 
 use adw::prelude::*;
-use async_channel::Sender;
 use gtk::glib;
 
 pub struct Mpris {
-    // needs to be Send, so can't store handle to the window...
-    raise_send: Sender<()>,
-    quit_send: Sender<()>,
+    window: glib::SendWeakRef<crate::ui::Window>,
 }
 
 impl Mpris {
     pub fn new(window: &crate::ui::Window) -> Self {
-        let (raise_send, raise_recv) = async_channel::bounded(1);
-        let (quit_send, quit_recv) = async_channel::bounded(1);
-
-        glib::spawn_future_local(glib::clone!(
-            #[weak]
-            window,
-            async move {
-                while let Ok(()) = raise_recv.recv().await {
-                    window.present();
-                }
-            }
-        ));
-
-        glib::spawn_future_local(glib::clone!(
-            #[weak]
-            window,
-            async move {
-                while let Ok(()) = quit_recv.recv().await {
-                    window.close();
-                }
-            }
-        ));
-
         Self {
-            raise_send: raise_send,
-            quit_send: quit_send,
+            window: window.downgrade().into(),
         }
     }
 }
 
 #[zbus::interface(name = "org.mpris.MediaPlayer2")]
 impl Mpris {
-    async fn raise(&self) {
-        // FIXME: don't unwrap
-        self.raise_send.send(()).await.unwrap()
+    fn raise(&self) {
+        self.window.upgrade().expect("main window was finalized").present();
     }
 
-    async fn quit(&self) {
-        // FIXME: don't unwrap
-        self.quit_send.send(()).await.unwrap()
+    fn quit(&self) {
+        match self.window.upgrade() {
+            None => {}, // guess there's nothing to do
+            Some(window) => window.close(),
+        }
     }
 
     #[zbus(property)]
@@ -67,7 +41,8 @@ impl Mpris {
 
     #[zbus(property)]
     // TODO: report that if the argument is just _ the attribute panics
-    async fn set_fullscreen(&self, _fullscreen: bool) -> zbus::Result<()> {
+    // TODO: why can't this return zbus::fdo::Result??
+    fn set_fullscreen(&self, _fullscreen: bool) -> zbus::Result<()> {
         Err(zbus::Error::Unsupported)
     }