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- <?php
- // This file is part of Moodle - http://moodle.org/
- //
- // Moodle is free software: you can redistribute it and/or modify
- // it under the terms of the GNU General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // Moodle is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- //
- // You should have received a copy of the GNU General Public License
- // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
- /**
- * Online users block.
- *
- * @package block_online_users
- * @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
- * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
- use block_online_users\fetcher;
- /**
- * This block needs to be reworked.
- * The new roles system does away with the concepts of rigid student and
- * teacher roles.
- */
- class block_online_users extends block_base {
- function init() {
- $this->title = get_string('pluginname','block_online_users');
- }
- function has_config() {
- return true;
- }
- function get_content() {
- global $USER, $CFG, $DB, $OUTPUT, $PAGE;
- if ($this->content !== NULL) {
- return $this->content;
- }
- $this->content = new stdClass;
- $this->content->text = '';
- $this->content->footer = '';
- if (empty($this->instance)) {
- return $this->content;
- }
- $timetoshowusers = 300; //Seconds default
- if (isset($CFG->block_online_users_timetosee)) {
- $timetoshowusers = $CFG->block_online_users_timetosee * 60;
- }
- $now = time();
- //Calculate if we are in separate groups
- $isseparategroups = ($this->page->course->groupmode == SEPARATEGROUPS
- && $this->page->course->groupmodeforce
- && !has_capability('moodle/site:accessallgroups', $this->page->context));
- //Get the user current group
- $currentgroup = $isseparategroups ? groups_get_course_group($this->page->course) : NULL;
- $sitelevel = $this->page->course->id == SITEID || $this->page->context->contextlevel < CONTEXT_COURSE;
- $onlineusers = new fetcher($currentgroup, $now, $timetoshowusers, $this->page->context,
- $sitelevel, $this->page->course->id);
- //Calculate minutes
- $minutes = floor($timetoshowusers/60);
- // Verify if we can see the list of users, if not just print number of users
- if (!has_capability('block/online_users:viewlist', $this->page->context)) {
- if (!$usercount = $onlineusers->count_users()) {
- $usercount = get_string("none");
- }
- $this->content->text = "<div class=\"info\">".get_string("periodnminutes","block_online_users",$minutes).": $usercount</div>";
- return $this->content;
- }
- $userlimit = 50; // We'll just take the most recent 50 maximum.
- if ($users = $onlineusers->get_users($userlimit)) {
- foreach ($users as $user) {
- $users[$user->id]->fullname = fullname($user);
- }
- } else {
- $users = array();
- }
- $usercount = $onlineusers->count_users();
- $usercount = ": $usercount";
- $this->content->text = "<div class=\"info\">(".get_string("periodnminutes","block_online_users",$minutes)."$usercount)</div>";
- //Now, we have in users, the list of users to show
- //Because they are online
- if (!empty($users)) {
- //Accessibility: Don't want 'Alt' text for the user picture; DO want it for the envelope/message link (existing lang string).
- //Accessibility: Converted <div> to <ul>, inherit existing classes & styles.
- $this->content->text .= "<ul class='list'>\n";
- if (isloggedin() && has_capability('moodle/site:sendmessage', $this->page->context)
- && !empty($CFG->messaging) && !isguestuser()) {
- $canshowicon = true;
- message_messenger_requirejs();
- } else {
- $canshowicon = false;
- }
- foreach ($users as $user) {
- $this->content->text .= '<li class="listentry">';
- $timeago = format_time($now - $user->lastaccess); //bruno to calculate correctly on frontpage
- if (isguestuser($user)) {
- $this->content->text .= '<div class="user">'.$OUTPUT->user_picture($user, array('size'=>16, 'alttext'=>false));
- $this->content->text .= get_string('guestuser').'</div>';
- } else {
- $this->content->text .= '<div class="user">';
- $this->content->text .= '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$user->id.'&course='.$this->page->course->id.'" title="'.$timeago.'">';
- $this->content->text .= $OUTPUT->user_picture($user, array('size'=>16, 'alttext'=>false, 'link'=>false)) .$user->fullname.'</a></div>';
- }
- if ($canshowicon and ($USER->id != $user->id) and !isguestuser($user)) { // Only when logged in and messaging active etc
- $anchortagcontents = '<img class="iconsmall" src="'.$OUTPUT->pix_url('t/message') . '" alt="'. get_string('messageselectadd') .'" />';
- $anchorurl = new moodle_url('/message/index.php', array('id' => $user->id));
- $anchortag = html_writer::link($anchorurl, $anchortagcontents, array_merge(
- message_messenger_sendmessage_link_params($user),
- array('title' => get_string('messageselectadd'))
- ));
- $this->content->text .= '<div class="message">'.$anchortag.'</div>';
- }
- $this->content->text .= "</li>\n";
- }
- $this->content->text .= '</ul><div class="clearer"><!-- --></div>';
- } else {
- $this->content->text .= "<div class=\"info\">".get_string("none")."</div>";
- }
- return $this->content;
- }
- }
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