Kordophone/src/message-list/message-list-view.vala

using Adw;
using Gtk;
using Gee;

public class MessageListView : Adw.Bin
{
    public MessageListModel? model {
        get {
            return _model;
        }
        set {
            _model = value;

            if (model != null) {
                model.messages_changed.connect(reload_messages);
                model.load_messages();
            } else {
                message_drawing_area.set_messages(new TreeSet<Message>());
            }
        }
    }

    private MessageListModel? _model = null;
    private Adw.ToolbarView container;

    private MessageDrawingArea message_drawing_area = new MessageDrawingArea();
    private ScrolledWindow scrolled_window = new ScrolledWindow();

    public MessageListView(MessageListModel? model = null) {
        this.model = model;

        container = new Adw.ToolbarView();
        set_child(container);

        scrolled_window.set_child(message_drawing_area);
        scrolled_window.add_css_class("message-list-scroller");
        container.set_content(scrolled_window);

        var header_bar = new Adw.HeaderBar();
        header_bar.set_title_widget(new Label("Messages"));
        container.add_top_bar(header_bar);
    }

    private void reload_messages() {
        message_drawing_area.set_messages(_model.messages);
    }
}