mod/chat/view.php

   1 <?php  // $Id$
   2
   3 /// This page prints a particular instance of chat
   4
   5     require_once('../../config.php');
   6     require_once('lib.php');
   7     require_once($CFG->libdir.'/blocklib.php');
   8     require_once('pagelib.php');
   9
  10     if (!empty($THEME->customcorners)) {
  11         require_once($CFG->dirroot.'/lib/custom_corners_lib.php');
  12     }
  13
  14     $id   = optional_param('id', 0, PARAM_INT);
  15     $c    = optional_param('c', 0, PARAM_INT);
  16     $edit = optional_param('edit', -1, PARAM_BOOL);
  17
  18     if ($id) {
  19         if (! $cm = get_coursemodule_from_id('chat', $id)) {
  20             error('Course Module ID was incorrect');
  21         }
  22
  23         if (! $course = get_record('course', 'id', $cm->course)) {
  24             error('Course is misconfigured');
  25         }
  26
  27         chat_update_chat_times($cm->instance);
  28
  29         if (! $chat = get_record('chat', 'id', $cm->instance)) {
  30             error('Course module is incorrect');
  31         }
  32
  33     } else {
  34         chat_update_chat_times($c);
  35
  36         if (! $chat = get_record('chat', 'id', $c)) {
  37             error('Course module is incorrect');
  38         }
  39         if (! $course = get_record('course', 'id', $chat->course)) {
  40             error('Course is misconfigured');
  41         }
  42         if (! $cm = get_coursemodule_from_instance('chat', $chat->id, $course->id)) {
  43             error('Course Module ID was incorrect');
  44         }
  45     }
  46
  47
  48     require_course_login($course, true, $cm);
  49
  50     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  51
  52     add_to_log($course->id, 'chat', 'view', "view.php?id=$cm->id", $chat->id, $cm->id);
  53
  54 // Initialize $PAGE, compute blocks
  55
  56     $PAGE       = page_create_instance($chat->id);
  57     $pageblocks = blocks_setup($PAGE);
  58     $blocks_preferred_width = bounded_number(180, blocks_preferred_width($pageblocks[BLOCK_POS_LEFT]), 210);
  59
  60 /// Print the page header
  61
  62     $strenterchat    = get_string('enterchat', 'chat');
  63     $stridle         = get_string('idle', 'chat');
  64     $strcurrentusers = get_string('currentusers', 'chat');
  65     $strnextsession  = get_string('nextsession', 'chat');
  66
  67     if (($edit != -1) and $PAGE->user_allowed_editing()) {
  68         $USER->editing = $edit;
  69     }
  70
  71     $PAGE->print_header($course->shortname.': %fullname%');
  72
  73     echo '<table id="layout-table"><tr>';
  74
  75     if(!empty($CFG->showblocksonmodpages) && (blocks_have_content($pageblocks, BLOCK_POS_LEFT) || $PAGE->user_is_editing())) {
  76         echo '<td style="width: '.$blocks_preferred_width.'px;" id="left-column">';
  77         if (!empty($THEME->customcorners)) print_custom_corners_start();
  78         blocks_print_group($PAGE, $pageblocks, BLOCK_POS_LEFT);
  79         if (!empty($THEME->customcorners)) print_custom_corners_end();
  80         echo '</td>';
  81     }
  82
  83     echo '<td id="middle-column">';
  84     if (!empty($THEME->customcorners)) print_custom_corners_start();
  85
  86 /// Check to see if groups are being used here
  87     $groupmode = groupmode($course, $cm);
  88     $currentgroup = setup_and_print_groups($course, $groupmode, "view.php?id=$cm->id");
  89
  90     if ($currentgroup) {
  91         $groupselect = " AND groupid = '$currentgroup'";
  92         $groupparam = "&amp;groupid=$currentgroup";
  93     } else {
  94         $groupselect = "";
  95         $groupparam = "";
  96     }
  97
  98     if ($chat->studentlogs or has_capability('mod/chat:readlog',$context)) {
  99         echo '<div class="reportlink">';
 100         echo "<a href=\"report.php?id=$cm->id\">".
 101               get_string('viewreport', 'chat').'</a>';
 102         echo '</div>';
 103     }
 104
 105
 106     print_heading(format_string($chat->name));
 107
 108 /// Print the main part of the page
 109
 110     if (has_capability('mod/chat:chat',$context)) {
 111         print_box_start('generalbox', 'enterlink');
 112         // users with screenreader set, will only see 1 link, to the manual refresh page
 113         // for better accessibility
 114         if (!empty($USER->screenreader)) {
 115             $chattarget = "/mod/chat/gui_basic/index.php?id=$chat->id$groupparam";
 116         } else {
 117             $chattarget = "/mod/chat/gui_$CFG->chat_method/index.php?id=$chat->id$groupparam";
 118         }
 119
 120         link_to_popup_window ($chattarget,
 121                               "chat$course->id$chat->id$groupparam", "<p>$strenterchat</p>", 500, 700, get_string('modulename', 'chat'));
 122
 123         // if user is using screen reader, then there is no need to display this link again
 124         if ($CFG->chat_method == 'header_js' && empty($USER->screenreader)) {
 125             // show frame/js-less alternative
 126             link_to_popup_window ("/mod/chat/gui_basic/index.php?id=$chat->id$groupparam",
 127                                   "chat$course->id$chat->id$groupparam", '<p>('.get_string('noframesjs', 'message').')</p>', 500, 700, get_string('modulename', 'chat'));
 128         }
 129
 130         print_box_end();
 131
 132     } else if (isguestuser()) {
 133         $wwwroot = $CFG->wwwroot.'/login/index.php';
 134         if (!empty($CFG->loginhttps)) {
 135             $wwwroot = str_replace('http:','https:', $wwwroot);
 136         }
 137
 138         notice_yesno(get_string('noguests', 'chat').'<br /><br />'.get_string('liketologin'),
 139                      $wwwroot, $CFG->wwwroot.'/course/view.php?id='.$course->id);
 140
 141         print_footer($course);
 142         exit;
 143
 144     } else {
 145         // show some error message
 146         require_capability('mod/chat:chat', $context);
 147     }
 148
 149
 150     if ($chat->chattime and $chat->schedule) {  // A chat is scheduled
 151         echo "<p class=\"nextchatsession\">$strnextsession: ".userdate($chat->chattime).' ('.usertimezone($USER->timezone).')</p>';
 152     } else {
 153         echo '<br />';
 154     }
 155
 156     if ($chat->intro) {
 157         print_box(format_text($chat->intro), 'generalbox', 'intro');
 158     }
 159
 160     chat_delete_old_users();
 161
 162     if ($chatusers = chat_get_users($chat->id, $currentgroup)) {
 163         $timenow = time();
 164         print_simple_box_start('center');
 165         print_heading($strcurrentusers);
 166         echo '<table id="chatcurrentusers">';
 167         foreach ($chatusers as $chatuser) {
 168             $lastping = $timenow - $chatuser->lastmessageping;
 169             echo '<tr><td class="chatuserimage">';
 170             echo "<a href=\"$CFG->wwwroot/user/view.php?id=$chatuser->id&amp;course=$chat->course\">";
 171             print_user_picture($chatuser->id, 0, $chatuser->picture, false, false, false);
 172             echo '</a></td><td class="chatuserdetails">';
 173             echo '<p>';
 174             echo fullname($chatuser).'<br />';
 175             echo "<span class=\"idletime\">$stridle: ".format_time($lastping)."</span>";
 176             echo '</p>';
 177             echo '</td></tr>';
 178         }
 179         echo '</table>';
 180         print_simple_box_end();
 181     }
 182
 183
 184 /// Finish the page
 185     if (!empty($THEME->customcorners)) print_custom_corners_end();
 186     echo '</td></tr></table>';
 187
 188     print_footer($course);
 189
 190 ?>