LibGUI: Convert GRadioButton to ObjectPtr

Applications/Terminal/main.cpp

@@ -107,8 +107,8 @@ ObjectPtr<GWindow> create_settings_window(TerminalWidget& terminal, RefPtr<CConf
     radio_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     radio_container->set_preferred_size(100, 70);
 
-    auto* sysbell_radio = new GRadioButton("Use (Audible) System Bell", radio_container);
-    auto* visbell_radio = new GRadioButton("Use (Visual) Terminal Bell", radio_container);
+    auto sysbell_radio = GRadioButton::construct("Use (Audible) System Bell", radio_container);
+    auto visbell_radio = GRadioButton::construct("Use (Visual) Terminal Bell", radio_container);
     sysbell_radio->set_checked(terminal.should_beep());
     visbell_radio->set_checked(!terminal.should_beep());
     sysbell_radio->on_checked = [&terminal](const bool checked) {
@@ -181,8 +181,13 @@ int main(int argc, char** argv)
     auto app_menu = make<GMenu>("Terminal");
     app_menu->add_action(GAction::create("Settings...", load_png("/res/icons/gear16.png"),
         [&](const GAction&) {
-            if (!settings_window)
+            if (!settings_window) {
                 settings_window = create_settings_window(*terminal, config);
+                settings_window->on_close_request = [&] {
+                    settings_window = nullptr;
+                    return GWindow::CloseRequestDecision::Close;
+                };
+            }
             settings_window->show();
             settings_window->move_to_front();
         }));

Demos/WidgetGallery/main.cpp

@@ -33,9 +33,9 @@ int main(int argc, char** argv)
     auto* checkbox2 = new GCheckBox("GCheckBox 2", main_widget);
     checkbox2->set_enabled(false);
 
-    auto* radio1 = new GRadioButton("GRadioButton 1", main_widget);
+    auto radio1 = GRadioButton::construct("GRadioButton 1", main_widget);
     (void)radio1;
-    auto* radio2 = new GRadioButton("GRadioButton 2", main_widget);
+    auto radio2 = GRadioButton::construct("GRadioButton 2", main_widget);
     radio2->set_enabled(false);
 
     auto* button1 = new GButton("GButton 1", main_widget);

Libraries/LibGUI/GRadioButton.h

@@ -5,12 +5,12 @@
 class GRadioButton : public GAbstractButton {
     C_OBJECT(GRadioButton)
 public:
-    GRadioButton(const StringView& text, GWidget* parent);
     virtual ~GRadioButton() override;
 
     virtual void click() override;
 
 protected:
+    GRadioButton(const StringView& text, GWidget* parent);
     virtual void paint_event(GPaintEvent&) override;
 
 private: