volume slider works again

src/playbin.rs

@@ -22,6 +22,8 @@ mod ffi {
         pub fn audrey_playbin_get_state(self_: *mut AudreyPlaybin) -> super::state::ffi::State;
         pub fn audrey_playbin_pause(self_: *mut AudreyPlaybin);
         pub fn audrey_playbin_play(self_: *mut AudreyPlaybin);
+        pub fn audrey_playbin_get_volume(self_: *mut AudreyPlaybin) -> std::ffi::c_int;
+        pub fn audrey_playbin_set_volume(self_: *mut AudreyPlaybin, volume: std::ffi::c_int);
     }
 }
 
@@ -53,4 +55,16 @@ impl Playbin {
 
         unsafe { ffi::audrey_playbin_play(self.to_glib_none().0) }
     }
+
+    pub fn get_volume(&self) -> i32 {
+        use glib::translate::ToGlibPtr;
+
+        unsafe { ffi::audrey_playbin_get_volume(self.to_glib_none().0) }
+    }
+
+    pub fn set_volume(&self, value: i32) {
+        use glib::translate::ToGlibPtr;
+
+        unsafe { ffi::audrey_playbin_set_volume(self.to_glib_none().0, value) }
+    }
 }

src/ui/playbar.rs

@@ -18,8 +18,8 @@ mod imp {
         #[property(get, set, default = true)]
         show_cover_art: Cell<bool>,
 
-        #[property(get, set)]
+        #[property(get = Self::get_volume, set = Self::set_volume)]
-        volume: Cell<i32>,
+        volume: i32,
     }
 
     #[glib::object_subclass]
@@ -166,6 +166,21 @@ mod imp {
             //this.playbin.mute = !this.playbin.mute;
             todo!()
         }
+
+        fn get_volume(&self) -> i32 {
+            let playbin = self.playbin.borrow();
+
+            match playbin.as_ref() {
+                None => 100,
+                Some(playbin) => playbin.get_volume(),
+            }
+        }
+
+        fn set_volume(&self, value: i32) {
+            let playbin = self.playbin.borrow();
+            let playbin = playbin.as_ref().unwrap();
+            playbin.set_volume(value);
+        }
     }
 }