move sanity check here

src/ui/window.rs

@@ -90,7 +90,6 @@ mod imp {
             mpv.observe_property(4, "idle-active").unwrap();
             mpv.observe_property(6, "playlist-count").unwrap();
             mpv.observe_property(7, "duration").unwrap();
-            mpv.observe_property(8, "path").unwrap();
 
             // "Useful to drain property changes before a new file is loaded."
             mpv.add_hook(0, "on_before_start_file", 0).unwrap();
@@ -185,11 +184,13 @@ mod imp {
 
                         match event {
                             Event::PropertyChange(event) => window.imp().on_property_change(event),
-                            Event::StartFile(_) => window.imp().on_start_file(),
                             Event::Hook(event) => window.imp().on_hook(event),
                             Event::LogMessage(event) => window.imp().on_log_message(event),
-                            Event::Seek => window.imp().on_seek(),
+
+                            Event::StartFile(_) => window.imp().on_start_file(),
+                            Event::FileLoaded => window.imp().on_file_loaded(),
                             Event::PlaybackRestart => window.imp().on_playback_restart(),
+                            Event::Seek => window.imp().on_seek(),
                             Event::EndFile(event) => window.imp().on_end_file(event),
 
                             Event::Unknown(_) => {
@@ -454,60 +455,10 @@ mod imp {
                     self.obj().notify("duration");
                 }
 
-                8 => {
-                    assert_eq!(event.name, "path");
-                    // sanity check
-                    match self.mpv.get_property::<String>("path") {
-                        Ok(path) => {
-                            assert_eq!(path, self.obj().song().unwrap().stream_url())
-                        }
-                        Err(err) if err.is_property_unavailable() => {}
-                        Err(err) => panic!("{err:?}"),
-                    }
-                }
-
                 _ => unreachable!(),
             }
         }
 
-        fn on_start_file(&self) {
-            event!(Level::INFO, "start file event");
-            self.obj().notify("song");
-            self.buffering_start();
-
-            let window = self.obj().clone();
-            let song_id = window.song().unwrap().id();
-            if let Some(handle) = self
-                .loading_cover_handle
-                .replace(Some(glib::spawn_future_local(async move {
-                    let api = window.imp().api.borrow().as_ref().unwrap().clone();
-                    let bytes = api
-                        .cover_art(&song_id, None) // full size
-                        .await
-                        .expect("could not load cover art for song {song_id}");
-
-                    match window.song() {
-                        Some(song) if song.id() == song_id => {
-                            let texture = gdk::Texture::from_bytes(&glib::Bytes::from_owned(bytes))
-                                .expect("could not create texture from cover art for {song_id}");
-                            window.set_playing_cover_art(Some(texture));
-                        }
-                        _ => {
-                            event!(
-                                Level::WARN,
-                                "was too late to fetch cover for song {song_id}"
-                            )
-                        }
-                    }
-                })))
-            {
-                handle.abort();
-            }
-
-            // make sure this is reported as 0
-            self.obj().notify("time-pos");
-        }
-
         fn on_hook(&self, event: crate::mpv::event::HookEvent) {
             match event.reply_userdata {
                 0 => {
@@ -552,13 +503,61 @@ mod imp {
             };
         }
 
+        fn on_start_file(&self) {
+            event!(Level::INFO, "StartFile");
+            self.obj().notify("song");
+            self.buffering_start();
+
+            let window = self.obj().clone();
+            let song_id = window.song().unwrap().id();
+            if let Some(handle) = self
+                .loading_cover_handle
+                .replace(Some(glib::spawn_future_local(async move {
+                    let api = window.imp().api.borrow().as_ref().unwrap().clone();
+                    let bytes = api
+                        .cover_art(&song_id, None) // full size
+                        .await
+                        .expect("could not load cover art for song {song_id}");
+
+                    match window.song() {
+                        Some(song) if song.id() == song_id => {
+                            let texture = gdk::Texture::from_bytes(&glib::Bytes::from_owned(bytes))
+                                .expect("could not create texture from cover art for {song_id}");
+                            window.set_playing_cover_art(Some(texture));
+                        }
+                        _ => {
+                            event!(
+                                Level::WARN,
+                                "was too late to fetch cover for song {song_id}"
+                            )
+                        }
+                    }
+                })))
+            {
+                handle.abort();
+            }
+
+            // make sure this is reported as 0
+            self.obj().notify("time-pos");
+        }
+
+        fn on_file_loaded(&self) {
+            event!(Level::INFO, "FileLoaded");
+            // sanity check
+            // i think "path" is only available after this event is dispatched
+            assert_eq!(
+                self.mpv.get_property::<String>("path").unwrap(),
+                self.obj().song().unwrap().stream_url()
+            );
+        }
+
         fn on_seek(&self) {
-            event!(Level::INFO, "seek event");
+            event!(Level::INFO, "Seek");
             self.buffering_start();
         }
 
         fn on_playback_restart(&self) {
-            event!(Level::INFO, "playback restart event");
+            event!(Level::INFO, "PlaybackRestart");
             self.buffering_end();
             self.obj().notify("time-pos");
 
@@ -570,7 +569,7 @@ mod imp {
         }
 
         fn on_end_file(&self, event: crate::mpv::event::EndFileEvent) {
-            event!(Level::INFO, "end file event: {event:?}");
+            event!(Level::INFO, "EndFile: {event:?}");
             self.obj().notify("song");
             self.buffering_end();