mod/chat/view.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /// This page prints a particular instance of chat
  19
  20 require_once(dirname(dirname(dirname(__FILE__))) . '/config.php');
  21 require_once($CFG->dirroot . '/mod/chat/lib.php');
  22 require_once($CFG->libdir . '/completionlib.php');
  23
  24 $id   = optional_param('id', 0, PARAM_INT);
  25 $c    = optional_param('c', 0, PARAM_INT);
  26 $edit = optional_param('edit', -1, PARAM_BOOL);
  27
  28 if ($id) {
  29     if (! $cm = get_coursemodule_from_id('chat', $id)) {
  30         print_error('invalidcoursemodule');
  31     }
  32
  33     if (! $course = $DB->get_record('course', array('id'=>$cm->course))) {
  34         print_error('coursemisconf');
  35     }
  36
  37     chat_update_chat_times($cm->instance);
  38
  39     if (! $chat = $DB->get_record('chat', array('id'=>$cm->instance))) {
  40         print_error('invalidid', 'chat');
  41     }
  42
  43 } else {
  44     chat_update_chat_times($c);
  45
  46     if (! $chat = $DB->get_record('chat', array('id'=>$c))) {
  47         print_error('coursemisconf');
  48     }
  49     if (! $course = $DB->get_record('course', array('id'=>$chat->course))) {
  50         print_error('coursemisconf');
  51     }
  52     if (! $cm = get_coursemodule_from_instance('chat', $chat->id, $course->id)) {
  53         print_error('invalidcoursemodule');
  54     }
  55 }
  56
  57 require_course_login($course, true, $cm);
  58
  59 $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  60 $PAGE->set_context($context);
  61
  62 // show some info for guests
  63 if (isguestuser()) {
  64     $PAGE->set_title(format_string($chat->name));
  65     echo $OUTPUT->header();
  66     echo $OUTPUT->confirm('<p>'.get_string('noguests', 'chat').'</p>'.get_string('liketologin'),
  67             get_login_url(), $CFG->wwwroot.'/course/view.php?id='.$course->id);
  68
  69     echo $OUTPUT->footer();
  70     exit;
  71 }
  72
  73 add_to_log($course->id, 'chat', 'view', "view.php?id=$cm->id", $chat->id, $cm->id);
  74
  75 $strenterchat    = get_string('enterchat', 'chat');
  76 $stridle         = get_string('idle', 'chat');
  77 $strcurrentusers = get_string('currentusers', 'chat');
  78 $strnextsession  = get_string('nextsession', 'chat');
  79
  80 $courseshortname = format_string($course->shortname, true, array('context' => get_context_instance(CONTEXT_COURSE, $course->id)));
  81 $title = $courseshortname . ': ' . format_string($chat->name);
  82
  83 // Mark viewed by user (if required)
  84 $completion = new completion_info($course);
  85 $completion->set_module_viewed($cm);
  86
  87 // Initialize $PAGE
  88 $PAGE->set_url('/mod/chat/view.php', array('id' => $cm->id));
  89 $PAGE->set_title($title);
  90 $PAGE->set_heading($course->fullname);
  91
  92 /// Print the page header
  93 echo $OUTPUT->header();
  94
  95 /// Check to see if groups are being used here
  96 $groupmode = groups_get_activity_groupmode($cm);
  97 $currentgroup = groups_get_activity_group($cm, true);
  98 groups_print_activity_menu($cm, $CFG->wwwroot . "/mod/chat/view.php?id=$cm->id");
  99
 100 // url parameters
 101 $params = array();
 102 if ($currentgroup) {
 103     $groupselect = " AND groupid = '$currentgroup'";
 104     $groupparam = "&amp;groupid=$currentgroup";
 105     $params['groupid'] = $currentgroup;
 106 } else {
 107     $groupselect = "";
 108     $groupparam = "";
 109 }
 110
 111 echo $OUTPUT->heading(format_string($chat->name));
 112
 113 if ($chat->intro) {
 114     echo $OUTPUT->box(format_module_intro('chat', $chat, $cm->id), 'generalbox', 'intro');
 115 }
 116
 117 if (has_capability('mod/chat:chat', $context)) {
 118     /// Print the main part of the page
 119     echo $OUTPUT->box_start('generalbox', 'enterlink');
 120
 121     $now = time();
 122     $span = $chat->chattime - $now;
 123     if ($chat->chattime and $chat->schedule and ($span>0)) {  // A chat is scheduled
 124         echo '<p>';
 125         echo get_string('sessionstart', 'chat', format_time($span));
 126         echo '</p>';
 127     }
 128
 129     if (empty($USER->screenreader)) {
 130         $params['id'] = $chat->id;
 131         $chattarget = new moodle_url("/mod/chat/gui_$CFG->chat_method/index.php", $params);
 132         echo '<p>';
 133         echo $OUTPUT->action_link($chattarget, $strenterchat, new popup_action('click', $chattarget, "chat$course->id$chat->id$groupparam", array('height' => 500, 'width' => 700)));
 134         echo '</p>';
 135     }
 136
 137     // if user is using screen reader, then there is no need to display this link again
 138     // users with screenreader set, will only see 1 link, to the manual refresh page
 139     // for better accessibility
 140     // show frame/js-less alternative
 141     $params['id'] = $chat->id;
 142     $link = new moodle_url('/mod/chat/gui_basic/index.php', $params);
 143     $action = new popup_action('click', $link, "chat{$course->id}{$chat->id}{$groupparam}", array('height' => 500, 'width' => 700));
 144     echo '<p>';
 145     echo $OUTPUT->action_link($link, get_string('noframesjs', 'message'), $action, array('title'=>get_string('modulename', 'chat')));
 146     echo '</p>';
 147
 148     if ($chat->studentlogs or has_capability('mod/chat:readlog', $context)) {
 149         if ($msg = $DB->get_records_select('chat_messages', "chatid = ? $groupselect", array($chat->id))) {
 150             echo '<p>';
 151             echo html_writer::link(new moodle_url('/mod/chat/report.php', array('id'=>$cm->id)), get_string('viewreport', 'chat'));
 152             echo '</p>';
 153         }
 154     }
 155
 156
 157     echo $OUTPUT->box_end();
 158
 159 } else {
 160     echo $OUTPUT->box_start('generalbox', 'notallowenter');
 161     echo '<p>'.get_string('notallowenter', 'chat').'</p>';
 162     echo $OUTPUT->box_end();
 163 }
 164
 165 chat_delete_old_users();
 166
 167 if ($chatusers = chat_get_users($chat->id, $currentgroup, $cm->groupingid)) {
 168     $timenow = time();
 169     echo $OUTPUT->box_start('generalbox', 'chatcurrentusers');
 170     echo $OUTPUT->heading($strcurrentusers, 4);
 171     echo '<table>';
 172     foreach ($chatusers as $chatuser) {
 173         $lastping = $timenow - $chatuser->lastmessageping;
 174         echo '<tr><td class="chatuserimage">';
 175         $url = new moodle_url('/user/view.php', array('id'=>$chatuser->id, 'course'=>$chat->course));
 176         echo html_writer::link($url, $OUTPUT->user_picture($chatuser));
 177         echo '</td><td class="chatuserdetails">';
 178         echo '<p>'.fullname($chatuser).'</p>';
 179         echo '<span class="idletime">'.$stridle.': '.format_time($lastping).'</span>';
 180         echo '</td></tr>';
 181     }
 182     echo '</table>';
 183     echo $OUTPUT->box_end();
 184 }
 185
 186 echo $OUTPUT->footer();