Buddy List in User CP Plugin

[Otikeu]

Hello,

I've been trying to get the User CP to support buddylist-related needs. That is, I added the template code of the buddylist template and added this plugin code for usercp_start hook:

PHP Code:

if (!$vbulletin->userinfo['userid'])
    {
        print_no_permission();
    }

    ($hook = vBulletinHook::fetch_hook('misc_buddylist_start')) ? eval($hook) : false;

    $buddies =& $vbulletin->input->clean_gpc('r', 'buddies', TYPE_STR);

    if (trim($vbulletin->userinfo['buddylist']))
    {
        $buddylist = preg_split('/( )+/', trim($vbulletin->userinfo['buddylist']), -1, PREG_SPLIT_NO_EMPTY);
        $datecut = TIMENOW - $vbulletin->options['cookietimeout'];

        $buddys = $db->query_read_slave("
            SELECT
            user.username, (user.options & " . $vbulletin->bf_misc_useroptions['invisible'] . ") AS invisible, user.userid, session.lastactivity
            FROM " . TABLE_PREFIX . "user AS user
            LEFT JOIN " . TABLE_PREFIX . "session AS session ON(session.userid = user.userid)
            WHERE user.userid IN (" . implode(',', $buddylist) . ")
            ORDER BY username ASC,session.lastactivity DESC
        ");

        $onlineusers = '';
        $offlineusers = '';
        $newusersound = '';
        $lastonline = array();

        if (isset($buddies))
        {
            $buddies = urldecode($buddies);
            $lastonline = explode(' ', $buddies);
        }
        $buddies = '0 ';
        $show['playsound'] = false;

        require_once(DIR . '/includes/functions_bigthree.php');
        while ($buddy = $db->fetch_array($buddys))
        {
            if ($doneuser["$buddy[userid]"])
            {
                continue;
            }

            $doneuser["$buddy[userid]"] = true;

            if ($onlineresult = fetch_online_status($buddy))
            {
                if ($onlineresult == 1)
                {
                    $buddy['statusicon'] = 'online';
                }
                else
                {
                    $buddy['statusicon'] = 'invisible';
                }
                $buddies .= $buddy['userid'] . ' ';
            }
            else
            {
                $buddy['statusicon'] = 'offline';
            }

            $show['highlightuser'] = false;

            ($hook = vBulletinHook::fetch_hook('misc_buddylist_bit')) ? eval($hook) : false;

            if ($buddy['statusicon'] != 'offline')
            {
                if (!in_array($buddy['userid'], $lastonline) AND !empty($lastonline))
                {
                    $show['playsound'] = true;
                    $show['highlightuser'] = true;
                    // add name to top of list
                    eval('$onlineusers = "' . fetch_template('buddylistbit') . '" . $onlineusers;');
                }
                else
                {
                    eval('$onlineusers .= "' . fetch_template('buddylistbit') . '";');
                }
            }
            else
            {
                eval('$offlineusers .= "' . fetch_template('buddylistbit') . '";');
            }
        }
    }

    $buddies = urlencode(trim($buddies)); 


It works great on usercp.php, but I wish for it to work globally on the usercp_shell template. So, I tried the usercp_nav_start hook and got this error:

Fatal error: Call to a member function on a non-object in /home/gaminghy/public_html/forums/includes/functions_user.php(51) : eval()'d code on line 16

What would the correct way to optimize the code so it still works, but doesn't cause the errors? I plan to release this as a hack/template mod here, but just need help with that one part.

Thank you.