using Gtk; public class Dino.Ui.ViewModel.TweaksPreferencesPage : Object { public int avatar_roundness { get; set; } public string custom_css { get; set; default = ""; } } [GtkTemplate (ui = "/im/dino/Dino/preferences_window/tweaks_preferences_page.ui")] public class Dino.Ui.TweaksPreferencesPage : Adw.PreferencesPage { [GtkChild] private unowned Adw.SpinRow avatar_roundness_row; [GtkChild] private unowned Gtk.TextBuffer custom_css_buffer; public ViewModel.TweaksPreferencesPage model { get; set; default = new ViewModel.TweaksPreferencesPage(); } 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("avatar-roundness", avatar_roundness_row, "value", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL), model.bind_property("custom-css", custom_css_buffer, "text", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL) }; } else { model_bindings = new Binding[0]; } } }