Support playing roms by dragging into window

src/app.rs

@@ -424,6 +424,9 @@ impl ApplicationHandler<UserEvent> for Application {
                 {
                     self.controllers.handle_key_event(&event);
                 }
+                WindowEvent::DroppedFile(path) => {
+                    self.app.handle_dropped_file(viewport_id, path);
+                }
                 WindowEvent::Focused(new_focused) => {
                     self.focused = new_focused.then_some(viewport_id);
                 }

src/window.rs

@@ -1,4 +1,4 @@
-use std::sync::Arc;
+use std::{path::PathBuf, sync::Arc};
 
 pub use about::AboutWindow;
 use egui::{Ui, ViewportBuilder};
@@ -47,6 +47,10 @@ pub trait AppWindow {
         let _ = event;
         false
     }
+    fn handle_dropped_file(&mut self, path: PathBuf) -> bool {
+        let _ = path;
+        false
+    }
 }
 
 pub struct InitArgs<'a> {

src/window/game.rs

@@ -1,5 +1,6 @@
 use std::{
     ops::{Deref, DerefMut},
+    path::PathBuf,
     sync::{Arc, Mutex, atomic::AtomicBool, mpsc},
     time::Duration,
 };
@@ -214,6 +215,10 @@ impl GameWindow {
         self.handle_event(viewport_id, |window| window.handle_gamepad_event(event))
     }
 
+    pub fn handle_dropped_file(&mut self, viewport_id: ViewportId, path: PathBuf) -> bool {
+        self.handle_event(viewport_id, |window| window.handle_dropped_file(path))
+    }
+
     fn handle_event<F, R>(&mut self, viewport_id: ViewportId, cb: F) -> R
     where
         F: FnOnce(&mut dyn AppWindow) -> R,
@@ -765,6 +770,12 @@ impl AppWindow for GameWindow {
         }
         self.file_picker.set_window(args.window);
     }
+
+    fn handle_dropped_file(&mut self, path: PathBuf) -> bool {
+        self.client
+            .send_command(EmulatorCommand::LoadGame(self.sim_id, path));
+        true
+    }
 }
 
 impl Drop for GameWindow {