Opening the preset dropdown now updates the menu

I don't think it's that reliable but whatever

src/main.py

@@ -126,10 +126,20 @@ class AdwcustomizerApplication(Adw.Application):
         self.create_action("save_preset", self.show_save_preset_dialog)
         self.create_action("about", self.show_about_window)
 
+        self.reload_user_defined_presets()
+
+        win.present()
+        self.is_ready = True
+
+    def reload_user_defined_presets(self):
+        if self.props.active_window.presets_menu.get_n_items() > 1:
+            self.props.active_window.presets_menu.remove(1)
+
         preset_directory = os.path.join(os.environ['XDG_CONFIG_HOME'], "presets")
         if not os.path.exists(preset_directory):
             os.makedirs(preset_directory)
 
+        self.custom_presets.clear()
         for file_name in os.listdir(preset_directory):
             if file_name.endswith(".json"):
                 try:
@@ -161,12 +171,8 @@ class AdwcustomizerApplication(Adw.Application):
         open_in_file_manager_item = Gio.MenuItem()
         open_in_file_manager_item.set_label(_("Open in File Manager"))
         open_in_file_manager_item.set_action_and_target_value("app.open_preset_directory")
-        # does not work yet for some reason, i asked people in flatpak matrix room
         custom_menu_section.append_item(open_in_file_manager_item)
-        win.presets_menu.append_section(_("User Defined Presets"), custom_menu_section)
-        win.present()
-
-        self.is_ready = True
+        self.props.active_window.presets_menu.append_section(_("User Defined Presets"), custom_menu_section)
 
     def open_preset_directory(self, *_args):
         parent = XdpGtk4.parent_new_gtk(self.props.active_window)

src/ui/window.blp

@@ -1,12 +1,12 @@
 using Gtk 4.0;
 using Adw 1;
 
-template AdwcustomizerMainWindow : Gtk.ApplicationWindow {
+template AdwcustomizerMainWindow : ApplicationWindow {
   title: _("Adwaita Manager");
   default-width: 1280;
   default-height: 720;
 
-  titlebar: Gtk.HeaderBar {
+  titlebar: HeaderBar {
     [start]
     Button apply-button {
       styles ["suggested-action"]

src/window.py

@@ -39,6 +39,10 @@ class AdwcustomizerMainWindow(Gtk.ApplicationWindow):
     errors_button = Gtk.Template.Child("errors-button")
     errors_list = Gtk.Template.Child("errors-list")
 
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self.presets_dropdown.get_popover().connect("show", self.on_presets_dropdown_activate)
+
     def set_current_preset_name(self, new_name):
         self.presets_dropdown.set_label(new_name)
 
@@ -50,3 +54,6 @@ class AdwcustomizerMainWindow(Gtk.ApplicationWindow):
         self.errors_button.set_visible(len(errors) > 0)
         for error in errors:
             self.errors_list.append(AdwcustomizerError(error["error"], error["element"], error["line"]))
+
+    def on_presets_dropdown_activate(self, *args):
+        self.get_application().reload_user_defined_presets()