using Gtk; public class Dino.Ui.ViewModel.GeneralPreferencesPage : Object { public bool send_typing { get; set; } public bool send_marker { get; set; } public bool notifications { get; set; } public bool convert_emojis { get; set; } } [GtkTemplate (ui = "/im/dino/Dino/preferences_window_general.ui")] public class Dino.Ui.GeneralPreferencesPage : Adw.PreferencesPage { [GtkChild] private unowned Switch typing_switch; [GtkChild] private unowned Switch marker_switch; [GtkChild] private unowned Switch notification_switch; [GtkChild] private unowned Switch emoji_switch; public ViewModel.GeneralPreferencesPage model { get; set; default = new ViewModel.GeneralPreferencesPage(); } private Binding[] model_bindings = new Binding[0]; construct { this.notify["model"].connect(on_model_changed); } private void on_model_changed() { foreach (Binding binding in model_bindings) { binding.unbind(); } if (model != null) { model_bindings = new Binding[] { model.bind_property("send-typing", typing_switch, "active", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL), model.bind_property("send-marker", marker_switch, "active", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL), model.bind_property("notifications", notification_switch, "active", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL), model.bind_property("convert-emojis", emoji_switch, "active", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL) }; } else { model_bindings = new Binding[0]; } } }