Method handle_view_removed

plugins/single_plugins/switcher.cpp:262–290

    };

    void handle_view_removed(wayfire_toplevel_view view)
    {
        // not running at all, don't care
        if (!output->is_plugin_active(grab_interface.name))
        {
            return;
        }

        bool need_action = false;
        for (auto& sv : views)
        {
            need_action |= (sv.view == view);
        }

        // don't do anything if we're not using this view
        if (!need_action)
        {
            return;
        }

        if (active)
        {
            arrange();
        } else
        {
            cleanup_views([=] (SwitcherView& sv)
            { return sv.view == view; });
        }
    }

    bool handle_switch_request(int dir)
    {