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         echo '<p>';
 121         link_to_popup_window ($chattarget,
 122                               "chat$course->id$chat->id$groupparam", "$strenterchat", 500, 700, get_string('modulename', 'chat'));
 123         echo '</p>';
 124
 125         // if user is using screen reader, then there is no need to display this link again
 126         if ($CFG->chat_method == 'header_js' && empty($USER->screenreader)) {
 127             // show frame/js-less alternative
 128             echo '<p>(';
 129             link_to_popup_window ("/mod/chat/gui_basic/index.php?id=$chat->id$groupparam",
 130                                   "chat$course->id$chat->id$groupparam", get_string('noframesjs', 'message'), 500, 700, get_string('modulename', 'chat'));
 131             echo ')</p>';
 132         }
 133
 134         print_box_end();
 135
 136     } else if (isguestuser()) {
 137         $wwwroot = $CFG->wwwroot.'/login/index.php';
 138         if (!empty($CFG->loginhttps)) {
 139             $wwwroot = str_replace('http:','https:', $wwwroot);
 140         }
 141
 142         notice_yesno(get_string('noguests', 'chat').'<br /><br />'.get_string('liketologin'),
 143                      $wwwroot, $CFG->wwwroot.'/course/view.php?id='.$course->id);
 144
 145         print_footer($course);
 146         exit;
 147
 148     } else {
 149         // show some error message
 150         require_capability('mod/chat:chat', $context);
 151     }
 152
 153
 154     if ($chat->chattime and $chat->schedule) {  // A chat is scheduled
 155         echo "<p class=\"nextchatsession\">$strnextsession: ".userdate($chat->chattime).' ('.usertimezone($USER->timezone).')</p>';
 156     } else {
 157         echo '<br />';
 158     }
 159
 160     if ($chat->intro) {
 161         print_box(format_text($chat->intro), 'generalbox', 'intro');
 162     }
 163
 164     chat_delete_old_users();
 165
 166     if ($chatusers = chat_get_users($chat->id, $currentgroup)) {
 167         $timenow = time();
 168         print_simple_box_start('center');
 169         print_heading($strcurrentusers);
 170         echo '<table id="chatcurrentusers">';
 171         foreach ($chatusers as $chatuser) {
 172             $lastping = $timenow - $chatuser->lastmessageping;
 173             echo '<tr><td class="chatuserimage">';
 174             echo "<a href=\"$CFG->wwwroot/user/view.php?id=$chatuser->id&amp;course=$chat->course\">";
 175             print_user_picture($chatuser->id, 0, $chatuser->picture, false, false, false);
 176             echo '</a></td><td class="chatuserdetails">';
 177             echo '<p>';
 178             echo fullname($chatuser).'<br />';
 179             echo "<span class=\"idletime\">$stridle: ".format_time($lastping)."</span>";
 180             echo '</p>';
 181             echo '</td></tr>';
 182         }
 183         echo '</table>';
 184         print_simple_box_end();
 185     }
 186
 187
 188 /// Finish the page
 189     if (!empty($THEME->customcorners)) print_custom_corners_end();
 190     echo '</td></tr></table>';
 191
 192     print_footer($course);
 193
 194 ?>