better error popup

Cargo.toml

@@ -9,6 +9,7 @@ crate_type = "bin"
 
 [dependencies]
 dirs = "^3.0.1"
+gdk = "^0.13.2"
 gio = "^0"
 gtk = "^0"
 rodio = "^0.11.0"

src/main.rs

@@ -12,27 +12,29 @@ use std::process::Command;
 
 const SPACING: i32 = 16;
 
+#[cfg(target_os = "windows")]
+fn file_manager() -> &'static str {
+    "explorer"
+}
+
+#[cfg(not(target_os = "windows"))]
+fn file_manager() -> &'static str {
+    "xdg-open"
+}
+
 fn error_popup(message: &str) {
     let popup = gtk::Window::new(gtk::WindowType::Toplevel);
     popup.set_title("error");
     popup.set_border_width(SPACING as u32);
     popup.set_position(gtk::WindowPosition::Center);
     popup.set_default_size(256, 64);
-
-    let vertical = gtk::Box::new(Orientation::Vertical, SPACING);
-    popup.add(&vertical);
+    popup.set_type_hint(gdk::WindowTypeHint::Dialog);
+    popup.set_resizable(false);
 
     let message = gtk::Label::new(Some(message));
-    vertical.add(&message);
-
-    let button_ok = gtk::Button::with_label("OK");
-    vertical.add(&button_ok);
+    popup.add(&message);
 
     popup.show_all();
-
-    button_ok.connect_clicked(move |_| unsafe {
-        popup.destroy();
-    });
 }
 
 fn get_data_dir() -> PathBuf {
@@ -135,7 +137,7 @@ fn build_ui(application: &gtk::Application) {
     let button_manage_sounds = gtk::Button::with_label("manage sounds");
 
     button_manage_sounds.connect_clicked(|_| {
-        let mut file_manager = Command::new("xdg-open");
+        let mut file_manager = Command::new(file_manager());
         file_manager.arg(get_data_dir());
         file_manager.output().unwrap();
     });