main/src/ui/conversation_titlebar/view.vala


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using Gtk;
using Gee;

using Dino.Entities;

namespace Dino.Ui {

public class ConversationTitlebar : Gtk.HeaderBar {

    private StreamInteractor stream_interactor;
    private Window window;
    private Conversation? conversation;
    private Gee.List<Plugins.ConversationTitlebarWidget> widgets = new ArrayList<Plugins.ConversationTitlebarWidget>();
    public GlobalSearchButton search_button = new GlobalSearchButton() { visible = true };

    public ConversationTitlebar(StreamInteractor stream_interactor, Window window) {
        this.stream_interactor = stream_interactor;
        this.window = window;

        this.get_style_context().add_class("dino-right");
        show_close_button = true;
        hexpand = true;
        search_button.set_image(new Gtk.Image.from_icon_name("system-search-symbolic", Gtk.IconSize.MENU) { visible = true });

        Application app = GLib.Application.get_default() as Application;
        app.plugin_registry.register_contact_titlebar_entry(new MenuEntry(stream_interactor));
        app.plugin_registry.register_contact_titlebar_entry(new SearchMenuEntry(search_button));
        app.plugin_registry.register_contact_titlebar_entry(new OccupantsEntry(stream_interactor, window));

        foreach(var e in app.plugin_registry.conversation_titlebar_entries) {
            Plugins.ConversationTitlebarWidget widget = e.get_widget(Plugins.WidgetType.GTK);
            if (widget != null) {
                widgets.add(widget);
                pack_end((Gtk.Widget)widget);
            }
        }


        stream_interactor.get_module(MucManager.IDENTITY).subject_set.connect((account, jid, subject) => {
            if (conversation != null && conversation.counterpart.equals_bare(jid) && conversation.account.equals(account)) {
                update_subtitle(subject);
            }
        });
    }

    public void initialize_for_conversation(Conversation conversation) {
        this.conversation = conversation;
        update_title();
        update_subtitle();

        foreach (Plugins.ConversationTitlebarWidget widget in widgets) {
            widget.set_conversation(conversation);
        }
    }

    private void update_title() {
        set_title(Util.get_conversation_display_name(stream_interactor, conversation));
    }

    private void update_subtitle(string? subtitle = null) {
        if (subtitle != null) {
            set_subtitle(subtitle);
        } else if (conversation.type_ == Conversation.Type.GROUPCHAT) {
            string subject = stream_interactor.get_module(MucManager.IDENTITY).get_groupchat_subject(conversation.counterpart, conversation.account);
            set_subtitle(subject != "" ? subject : null);
        } else {
            set_subtitle(null);
        }
    }
}

}