feat: first attemp to support playing multiple tracks in parallel

src/gui/mod.rs

@@ -59,8 +59,8 @@ impl SoundpadGui {
         let (new_state, request) = {
             let guard = self.audio_player_state_shared.lock().unwrap();
             match guard.state {
-                PlayerState::Playing => (Some(PlayerState::Paused), Some(Request::pause())),
-                PlayerState::Paused => (Some(PlayerState::Playing), Some(Request::resume())),
+                PlayerState::Playing => (Some(PlayerState::Paused), Some(Request::pause(None))),
+                PlayerState::Paused => (Some(PlayerState::Playing), Some(Request::resume(None))),
                 PlayerState::Stopped => (None, None),
             }
         };
@@ -79,7 +79,7 @@ impl SoundpadGui {
     pub fn open_file(&mut self) {
         let file_dialog = FileDialog::new().add_filter("Audio File", &SUPPORTED_EXTENSIONS);
         if let Some(path) = file_dialog.pick_file() {
-            self.play_file(&path);
+            self.play_file(&path, false);
         }
     }
 
@@ -116,8 +116,8 @@ impl SoundpadGui {
             .collect();
     }
 
-    pub fn play_file(&mut self, path: &PathBuf) {
-        make_request_sync(Request::play(path.to_str().unwrap())).ok();
+    pub fn play_file(&mut self, path: &PathBuf, concurrent: bool) {
+        make_request_sync(Request::play(path.to_str().unwrap(), concurrent)).ok();
     }
 
     pub fn set_input(&mut self, name: String) {
@@ -130,8 +130,20 @@ impl SoundpadGui {
         }
     }
 
-    pub fn toggle_loop(&mut self) {
-        make_request_sync(Request::toggle_loop()).ok();
+    pub fn toggle_loop(&mut self, id: Option<u32>) {
+        make_request_sync(Request::toggle_loop(id)).ok();
+    }
+
+    pub fn pause(&mut self, id: Option<u32>) {
+        make_request_sync(Request::pause(id)).ok();
+    }
+
+    pub fn resume(&mut self, id: Option<u32>) {
+        make_request_sync(Request::resume(id)).ok();
+    }
+
+    pub fn stop(&mut self, id: Option<u32>) {
+        make_request_sync(Request::stop(id)).ok();
     }
 }
 
@@ -163,7 +175,7 @@ pub async fn run() -> Result<(), Box<dyn Error>> {
         Ok(_) => {
             let config = get_gui_config();
             if config.pause_on_exit {
-                make_request_sync(Request::pause()).ok();
+                make_request_sync(Request::pause(None)).ok();
             }
             Ok(())
         }