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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  // This page prints a particular instance of chat.
  18  
  19  require_once(dirname(dirname(dirname(__FILE__))) . '/config.php');
  20  require_once($CFG->dirroot . '/mod/chat/lib.php');
  21  require_once($CFG->libdir . '/completionlib.php');
  22  
  23  $id   = optional_param('id', 0, PARAM_INT);
  24  $c    = optional_param('c', 0, PARAM_INT);
  25  $edit = optional_param('edit', -1, PARAM_BOOL);
  26  
  27  if ($id) {
  28      if (! $cm = get_coursemodule_from_id('chat', $id)) {
  29          print_error('invalidcoursemodule');
  30      }
  31  
  32      if (! $course = $DB->get_record('course', array('id' => $cm->course))) {
  33          print_error('coursemisconf');
  34      }
  35  
  36      chat_update_chat_times($cm->instance);
  37  
  38      if (! $chat = $DB->get_record('chat', array('id' => $cm->instance))) {
  39          print_error('invalidid', 'chat');
  40      }
  41  
  42  } else {
  43      chat_update_chat_times($c);
  44  
  45      if (! $chat = $DB->get_record('chat', array('id' => $c))) {
  46          print_error('coursemisconf');
  47      }
  48      if (! $course = $DB->get_record('course', array('id' => $chat->course))) {
  49          print_error('coursemisconf');
  50      }
  51      if (! $cm = get_coursemodule_from_instance('chat', $chat->id, $course->id)) {
  52          print_error('invalidcoursemodule');
  53      }
  54  }
  55  
  56  require_course_login($course, true, $cm);
  57  
  58  $context = context_module::instance($cm->id);
  59  $PAGE->set_context($context);
  60  
  61  // Show some info for guests.
  62  if (isguestuser()) {
  63      $PAGE->set_title($chat->name);
  64      echo $OUTPUT->header();
  65      echo $OUTPUT->confirm('<p>'.get_string('noguests', 'chat').'</p>'.get_string('liketologin'),
  66              get_login_url(), $CFG->wwwroot.'/course/view.php?id='.$course->id);
  67  
  68      echo $OUTPUT->footer();
  69      exit;
  70  }
  71  
  72  // Log this request - the problem here is that the view page
  73  // does not display the chat content which is actually in a new window.
  74  $params = array(
  75      'objectid' => $chat->id,
  76      'context' => $context
  77  );
  78  $event = \mod_chat\event\course_module_viewed::create($params);
  79  $event->add_record_snapshot('chat', $chat);
  80  $event->trigger();
  81  
  82  $strenterchat    = get_string('enterchat', 'chat');
  83  $stridle         = get_string('idle', 'chat');
  84  $strcurrentusers = get_string('currentusers', 'chat');
  85  $strnextsession  = get_string('nextsession', 'chat');
  86  
  87  $courseshortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
  88  $title = $courseshortname . ': ' . format_string($chat->name);
  89  
  90  // Mark viewed by user (if required).
  91  $completion = new completion_info($course);
  92  $completion->set_module_viewed($cm);
  93  
  94  // Initialize $PAGE.
  95  $PAGE->set_url('/mod/chat/view.php', array('id' => $cm->id));
  96  $PAGE->set_title($title);
  97  $PAGE->set_heading($course->fullname);
  98  
  99  // Print the page header.
 100  echo $OUTPUT->header();
 101  
 102  // Check to see if groups are being used here.
 103  $groupmode = groups_get_activity_groupmode($cm);
 104  $currentgroup = groups_get_activity_group($cm, true);
 105  
 106  // URL parameters.
 107  $params = array();
 108  if ($currentgroup) {
 109      $groupselect = " AND groupid = '$currentgroup'";
 110      $groupparam = "_group{$currentgroup}";
 111      $params['groupid'] = $currentgroup;
 112  } else {
 113      $groupselect = "";
 114      $groupparam = "";
 115  }
 116  
 117  echo $OUTPUT->heading(format_string($chat->name), 2);
 118  
 119  if ($chat->intro) {
 120      echo $OUTPUT->box(format_module_intro('chat', $chat, $cm->id), 'generalbox', 'intro');
 121  }
 122  
 123  groups_print_activity_menu($cm, $CFG->wwwroot . "/mod/chat/view.php?id=$cm->id");
 124  
 125  if (has_capability('mod/chat:chat', $context)) {
 126      // Print the main part of the page.
 127      echo $OUTPUT->box_start('generalbox', 'enterlink');
 128  
 129      $now = time();
 130      $span = $chat->chattime - $now;
 131      if ($chat->chattime and $chat->schedule and ($span > 0)) {  // A chat is scheduled.
 132          echo '<p>';
 133          echo get_string('sessionstart', 'chat', format_time($span));
 134          echo '</p>';
 135      }
 136  
 137      $params['id'] = $chat->id;
 138      $chattarget = new moodle_url("/mod/chat/gui_$CFG->chat_method/index.php", $params);
 139      echo '<p>';
 140      echo $OUTPUT->action_link($chattarget,
 141                                $strenterchat,
 142                                new popup_action('click', $chattarget, "chat{$course->id}_{$chat->id}{$groupparam}",
 143                                                 array('height' => 500, 'width' => 700)));
 144      echo '</p>';
 145  
 146      $params['id'] = $chat->id;
 147      $link = new moodle_url('/mod/chat/gui_basic/index.php', $params);
 148      $action = new popup_action('click', $link, "chat{$course->id}_{$chat->id}{$groupparam}",
 149                                 array('height' => 500, 'width' => 700));
 150      echo '<p>';
 151      echo $OUTPUT->action_link($link, get_string('noframesjs', 'message'), $action,
 152                                array('title' => get_string('modulename', 'chat')));
 153      echo '</p>';
 154  
 155      if ($chat->studentlogs or has_capability('mod/chat:readlog', $context)) {
 156          if ($msg = $DB->get_records_select('chat_messages', "chatid = ? $groupselect", array($chat->id))) {
 157              echo '<p>';
 158              echo html_writer::link(new moodle_url('/mod/chat/report.php', array('id' => $cm->id)),
 159                                     get_string('viewreport', 'chat'));
 160              echo '</p>';
 161          }
 162      }
 163  
 164      echo $OUTPUT->box_end();
 165  
 166  } else {
 167      echo $OUTPUT->box_start('generalbox', 'notallowenter');
 168      echo '<p>'.get_string('notallowenter', 'chat').'</p>';
 169      echo $OUTPUT->box_end();
 170  }
 171  
 172  chat_delete_old_users();
 173  
 174  if ($chatusers = chat_get_users($chat->id, $currentgroup, $cm->groupingid)) {
 175      $timenow = time();
 176      echo $OUTPUT->box_start('generalbox', 'chatcurrentusers');
 177      echo $OUTPUT->heading($strcurrentusers, 3);
 178      echo '<table>';
 179      foreach ($chatusers as $chatuser) {
 180          $lastping = $timenow - $chatuser->lastmessageping;
 181          echo '<tr><td class="chatuserimage">';
 182          $url = new moodle_url('/user/view.php', array('id' => $chatuser->id, 'course' => $chat->course));
 183          echo html_writer::link($url, $OUTPUT->user_picture($chatuser));
 184          echo '</td><td class="chatuserdetails">';
 185          echo '<p>'.fullname($chatuser).'</p>';
 186          echo '<span class="idletime">'.$stridle.': '.format_time($lastping).'</span>';
 187          echo '</td></tr>';
 188      }
 189      echo '</table>';
 190      echo $OUTPUT->box_end();
 191  }
 192  
 193  echo $OUTPUT->footer();