Hook up library manager

src/library_manager.rs

@@ -0,0 +1,53 @@
+use crate::library::MusicusLibrary;
+use adw::{
+    prelude::*,
+    subclass::{navigation_page::NavigationPageImpl, prelude::*},
+};
+use gtk::glib::{self, Properties};
+use std::cell::OnceCell;
+
+mod imp {
+    use super::*;
+
+    #[derive(Properties, Debug, Default, gtk::CompositeTemplate)]
+    #[properties(wrapper_type = super::LibraryManager)]
+    #[template(file = "data/ui/library_manager.blp")]
+    pub struct LibraryManager {
+        #[property(get, construct_only)]
+        pub library: OnceCell<MusicusLibrary>,
+    }
+
+    #[glib::object_subclass]
+    impl ObjectSubclass for LibraryManager {
+        const NAME: &'static str = "MusicusLibraryManager";
+        type Type = super::LibraryManager;
+        type ParentType = adw::NavigationPage;
+
+        fn class_init(klass: &mut Self::Class) {
+            klass.bind_template();
+            klass.bind_template_instance_callbacks();
+        }
+
+        fn instance_init(obj: &glib::subclass::InitializingObject<Self>) {
+            obj.init_template();
+        }
+    }
+
+    #[glib::derived_properties]
+    impl ObjectImpl for LibraryManager {}
+
+    impl WidgetImpl for LibraryManager {}
+    impl NavigationPageImpl for LibraryManager {}
+}
+
+glib::wrapper! {
+    pub struct LibraryManager(ObjectSubclass<imp::LibraryManager>)
+        @extends gtk::Widget, adw::NavigationPage;
+}
+
+#[gtk::template_callbacks]
+impl LibraryManager {
+    pub fn new(library: &MusicusLibrary) -> Self {
+        glib::Object::builder().property("library", library).build()
+    }
+}