build.rs

@@ -26,9 +26,9 @@ fn main() {
         let output = command.output().unwrap();
         assert!(
             output.status.success(),
-            "blueprint-compiler failed with exit status {} and stdout:\n{}",
+            "blueprint-compiler failed with exit status {} and stderr:\n{}",
             output.status,
-            String::from_utf8_lossy(&output.stdout)
+            String::from_utf8_lossy(&output.stderr)
         );
 
         println!("cargo::rerun-if-changed=resources");

src/ui/window.rs

@@ -64,7 +64,6 @@ mod imp {
             mpv.observe_property(2, "pause").unwrap();
             mpv.observe_property(3, "playlist-pos").unwrap();
             mpv.observe_property(4, "idle-active").unwrap();
-            mpv.observe_property(5, "time-pos").unwrap();
 
             // "Useful to drain property changes before a new file is loaded."
             mpv.add_hook(0, "on_before_start_file", 0).unwrap();
@@ -148,11 +147,6 @@ mod imp {
                                     window.notify("idle-active");
                                 }
 
-                                5 => {
-                                    assert_eq!(event.name, "time-pos");
-                                    window.notify("time-pos");
-                                }
-
                                 _ => unreachable!(),
                             },
 
@@ -251,6 +245,19 @@ mod imp {
                     .await
                     .expect("could not register name in session bus");
             });
+
+            // notify of new time-pos every 100 ms
+            glib::source::timeout_add_local(std::time::Duration::from_millis(100), {
+                let window = self.obj().downgrade();
+                move || {
+                    let window = match window.upgrade() {
+                        None => return glib::ControlFlow::Break,
+                        Some(window) => window,
+                    };
+                    window.notify("time-pos");
+                    glib::ControlFlow::Continue
+                }
+            });
         }
     }