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<?php // $Id: users.php,v 1.7 2006/04/17 21:05:51 martinlanghoff Exp $
$nomoodlecookie = true; // Session not needed!
include('../../../config.php');
include('../lib.php');
$chat_sid = required_param('chat_sid', PARAM_ALPHANUM);
$beep = optional_param('beep', 0, PARAM_INT); // beep target
if (!$chatuser = get_record('chat_users', 'sid', $chat_sid)) {
error('Not logged in!');
}
//Get the course theme
$course = get_record('course','id',$chatuser->course,'','','','','id,theme');
//Set the course theme if necessary
if (!empty($course->theme)) {
if (!empty($CFG->allowcoursethemes)) {
$CFG->coursetheme = $course->theme;
}
}
//Get the user theme
$USER = get_record('user','id',$chatuser->userid,'','','','','id, theme');
//Adjust the prefered theme (main, course, user)
theme_setup();
chat_force_language($chatuser->lang);
$courseid = $chatuser->course;
if ($beep) {
$message->chatid = $chatuser->chatid;
$message->userid = $chatuser->userid;
$message->groupid = $chatuser->groupid;
$message->message = "beep $beep";
$message->system = 0;
$message->timestamp = time();
if (!insert_record('chat_messages', $message)) {
error('Could not insert a chat message!');
}
$chatuser->lastmessageping = time(); // A beep is a ping ;-)
}
$chatuser->lastping = time();
set_field('chat_users', 'lastping', $chatuser->lastping, 'id', $chatuser->id );
$refreshurl = "users.php?chat_sid=$chat_sid";
/// Get list of users
if (!$chatusers = chat_get_users($chatuser->chatid, $chatuser->groupid)) {
error(get_string('errornousers', 'chat'));
}
ob_start();
?>
<script type="text/javascript">
<!--
var timer = null
var f = 1; //seconds
var uidles = new Array(<?php echo count($chatusers) ?>);
<?php
$i = 0;
foreach ($chatusers as $chatuser) {
echo "uidles[$i] = 'uidle{$chatuser->id}';\n";
$i++;
}
?>
function stop() {
clearTimeout(timer)
}
function start() {
timer = setTimeout("update()", f*1000);
}
function update() {
for(i=0; i<uidles.length; i++) {
el = document.getElementById(uidles[i]);
if (el != null) {
parts = el.innerHTML.split(":");
time = f + (parseInt(parts[0], 10)*60) + parseInt(parts[1], 10);
min = Math.floor(time/60);
sec = time % 60;
el.innerHTML = ((min < 10) ? "0" : "") + min + ":" + ((sec < 10) ? "0" : "") + sec;
}
}
timer = setTimeout("update()", f*1000);
}
// -->
</script>
<?php
/// Print headers
$meta = ob_get_clean();
// Use ob to support Keep-Alive
ob_start();
print_header('', '', '', '', $meta, false, '', '', false, 'onload="start()" onunload="stop()"');
/// Print user panel body
$timenow = time();
$stridle = get_string('idle', 'chat');
$strbeep = get_string('beep', 'chat');
echo '<div style="display: none"><a href="'.$refreshurl.'" name="refreshLink">Refresh link</a></div>';
echo '<table width="100%">';
foreach ($chatusers as $chatuser) {
$lastping = $timenow - $chatuser->lastmessageping;
$min = (int) ($lastping/60);
$sec = $lastping - ($min*60);
$min = $min < 10 ? '0'.$min : $min;
$sec = $sec < 10 ? '0'.$sec : $sec;
$idle = $min.':'.$sec;
echo '<tr><td width="35">';
echo "<a target=\"_blank\" onClick=\"return openpopup('/user/view.php?id=$chatuser->id&course=$courseid','user$chatuser->id','');\" href=\"$CFG->wwwroot/user/view.php?id=$chatuser->id&course=$courseid\">";
print_user_picture($chatuser->id, 0, $chatuser->picture, false, false, false);
echo '</a></td><td valign="center">';
echo '<p><font size="1">';
echo fullname($chatuser).'<br />';
echo "<span class=\"dimmed_text\">$stridle <span name=\"uidles\" id=\"uidle{$chatuser->id}\">$idle</span></span>";
echo " <a href=\"users.php?chat_sid=$chat_sid&beep=$chatuser->id\">$strbeep</a>";
echo '</font></p>';
echo '<td></tr>';
}
echo '</table></body></html>';
//
// Support HTTP Keep-Alive by printing Content-Length
//
// If the user pane is refreshing often, using keepalives
// is lighter on the server and faster for most clients.
//
// Apache is normally configured to have a 15s timeout on
// keepalives, so let's observe that. Unfortunately, we cannot
// autodetect the keepalive timeout.
//
// Using keepalives when the refresh is longer than the timeout
// wastes server resources keeping an apache child around on a
// connection that will timeout. So we don't.
if ($CFG->chat_refresh_userlist < 15) {
header("Content-Length: " . ob_get_length() );
ob_end_flush();
}
exit; // no further output
?>
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