calendar/view.php

   1 <?php // $Id$
   2
   3 /////////////////////////////////////////////////////////////////////////////
   4 //                                                                         //
   5 // NOTICE OF COPYRIGHT                                                     //
   6 //                                                                         //
   7 // Moodle - Calendar extension                                             //
   8 //                                                                         //
   9 // Copyright (C) 2003-2004  Greek School Network            www.sch.gr     //
  10 //                                                                         //
  11 // Designed by:                                                            //
  12 //     Avgoustos Tsinakos (tsinakos@teikav.edu.gr)                         //
  13 //     Jon Papaioannou (pj@moodle.org)                                     //
  14 //                                                                         //
  15 // Programming and development:                                            //
  16 //     Jon Papaioannou (pj@moodle.org)                                     //
  17 //                                                                         //
  18 // For bugs, suggestions, etc contact:                                     //
  19 //     Jon Papaioannou (pj@moodle.org)                                     //
  20 //                                                                         //
  21 // The current module was developed at the University of Macedonia         //
  22 // (www.uom.gr) under the funding of the Greek School Network (www.sch.gr) //
  23 // The aim of this project is to provide additional and improved           //
  24 // functionality to the Asynchronous Distance Education service that the   //
  25 // Greek School Network deploys.                                           //
  26 //                                                                         //
  27 // This program is free software; you can redistribute it and/or modify    //
  28 // it under the terms of the GNU General Public License as published by    //
  29 // the Free Software Foundation; either version 2 of the License, or       //
  30 // (at your option) any later version.                                     //
  31 //                                                                         //
  32 // This program is distributed in the hope that it will be useful,         //
  33 // but WITHOUT ANY WARRANTY; without even the implied warranty of          //
  34 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           //
  35 // GNU General Public License for more details:                            //
  36 //                                                                         //
  37 //          http://www.gnu.org/copyleft/gpl.html                           //
  38 //                                                                         //
  39 /////////////////////////////////////////////////////////////////////////////
  40
  41 //  Display the calendar page.
  42
  43     require_once('../config.php');
  44     require_once($CFG->dirroot.'/course/lib.php');
  45     require_once($CFG->dirroot.'/calendar/lib.php');
  46
  47     $courseid = optional_param('course', 0, PARAM_INT);
  48     $view = optional_param('view', 'upcoming', PARAM_ALPHA);
  49     $day  = optional_param('cal_d', 0, PARAM_INT);
  50     $mon  = optional_param('cal_m', 0, PARAM_INT);
  51     $yr   = optional_param('cal_y', 0, PARAM_INT);
  52
  53     if(!$site = get_site()) {
  54         redirect($CFG->wwwroot.'/'.$CFG->admin.'/index.php');
  55     }
  56
  57     if ($courseid && $courseid != SITEID) {
  58         require_login($courseid);
  59     } else if ($CFG->forcelogin) {
  60         require_login();
  61     }
  62
  63     // Initialize the session variables
  64     calendar_session_vars();
  65
  66     //add_to_log($course->id, "course", "view", "view.php?id=$course->id", "$course->id");
  67     $now = usergetdate(time());
  68     $pagetitle = '';
  69
  70     $strcalendar = get_string('calendar', 'calendar');
  71     $navlinks = array();
  72     $navlinks[] = array('name' => $strcalendar,
  73                         'link' =>calendar_get_link_href(CALENDAR_URL.'view.php?view=upcoming&amp;course='.$courseid.'&amp;',
  74                                                         $now['mday'], $now['mon'], $now['year']),
  75                         'type' => 'misc');
  76
  77
  78     if(!checkdate($mon, $day, $yr)) {
  79         $day = intval($now['mday']);
  80         $mon = intval($now['mon']);
  81         $yr = intval($now['year']);
  82     }
  83     $time = make_timestamp($yr, $mon, $day);
  84
  85     switch($view) {
  86         case 'day':
  87             $navlinks[] = array('name' => userdate($time, get_string('strftimedate')), 'link' => null, 'type' => 'misc');
  88             $pagetitle = get_string('dayview', 'calendar');
  89         break;
  90         case 'month':
  91             $navlinks[] = array('name' => userdate($time, get_string('strftimemonthyear')), 'link' => null, 'type' => 'misc');
  92             $pagetitle = get_string('detailedmonthview', 'calendar');
  93         break;
  94         case 'upcoming':
  95             $pagetitle = get_string('upcomingevents', 'calendar');
  96         break;
  97     }
  98
  99     // If a course has been supplied in the URL, change the filters to show that one
 100     if (!empty($courseid)) {
 101         if ($course = get_record('course', 'id', $courseid)) {
 102             if ($course->id == SITEID) {
 103                 // If coming from the home page, show all courses
 104                 $SESSION->cal_courses_shown = calendar_get_default_courses(true);
 105                 calendar_set_referring_course(0);
 106
 107             } else {
 108                 // Otherwise show just this one
 109                 $SESSION->cal_courses_shown = $course->id;
 110                 calendar_set_referring_course($SESSION->cal_courses_shown);
 111             }
 112         }
 113     } else {
 114         $course = null;
 115     }
 116
 117     if (empty($USER->id) or isguest()) {
 118         $defaultcourses = calendar_get_default_courses();
 119         calendar_set_filters($courses, $groups, $users, $defaultcourses, $defaultcourses);
 120
 121     } else {
 122         calendar_set_filters($courses, $groups, $users);
 123     }
 124
 125     // Let's see if we are supposed to provide a referring course link
 126     // but NOT for the "main page" course
 127     if ($SESSION->cal_course_referer != SITEID &&
 128        ($shortname = get_field('course', 'shortname', 'id', $SESSION->cal_course_referer)) !== false) {
 129         require_login();
 130         if (empty($course)) {
 131             $course = get_record('course', 'id', $SESSION->cal_course_referer); // Useful to have around
 132         }
 133     }
 134
 135     $strcalendar = get_string('calendar', 'calendar');
 136     $prefsbutton = calendar_preferences_button();
 137
 138     // Print title and header
 139     $navigation = build_navigation($navlinks);
 140     print_header("$site->shortname: $strcalendar: $pagetitle", $strcalendar, $navigation,
 141                  '', '', true, $prefsbutton, user_login_string($site));
 142
 143     echo calendar_overlib_html();
 144
 145     // Layout the whole page as three big columns.
 146     echo '<table id="calendar" style="height:100%;">';
 147     echo '<tr>';
 148
 149     // START: Main column
 150
 151     echo '<td class="maincalendar">';
 152     echo '<div class="heightcontainer">';
 153
 154     switch($view) {
 155         case 'day':
 156             calendar_show_day($day, $mon, $yr, $courses, $groups, $users, $courseid);
 157         break;
 158         case 'month':
 159             calendar_show_month_detailed($mon, $yr, $courses, $groups, $users, $courseid);
 160         break;
 161         case 'upcoming':
 162             calendar_show_upcoming_events($courses, $groups, $users, get_user_preferences('calendar_lookahead', CALENDAR_UPCOMING_DAYS), get_user_preferences('calendar_maxevents', CALENDAR_UPCOMING_MAXEVENTS), $courseid);
 163         break;
 164     }
 165
 166     //Link to calendar export page
 167     echo '<div class="bottom">';
 168     if (!empty($CFG->enablecalendarexport)) {
 169         print_single_button('export.php', array('course'=>$courseid), get_string('exportcalendar', 'calendar'));
 170
 171         if (!empty($USER->id)) {
 172             $authtoken = sha1($USER->username . $USER->password . $CFG->calendar_exportsalt);
 173             $usernameencoded = urlencode($USER->username);
 174
 175             echo "<a href=\"export_execute.php?preset_what=all&amp;preset_time=recentupcoming&amp;username=$usernameencoded&amp;authtoken=$authtoken\">"
 176                  .'<img src="'.$CFG->pixpath.'/i/ical.gif" height="14" width="36" '
 177                  .'alt="'.get_string('ical', 'calendar').'" '
 178                  .'title="'.get_string('quickdownloadcalendar', 'calendar').'" />'
 179                  .'</a>';
 180         }
 181     }
 182
 183     echo '</div>';
 184     echo '</div>';
 185     echo '</td>';
 186
 187     // END: Main column
 188
 189     // START: Last column (3-month display)
 190     echo '<td class="sidecalendar">';
 191     list($prevmon, $prevyr) = calendar_sub_month($mon, $yr);
 192     list($nextmon, $nextyr) = calendar_add_month($mon, $yr);
 193     $getvars = 'id='.$courseid.'&amp;cal_d='.$day.'&amp;cal_m='.$mon.'&amp;cal_y='.$yr; // For filtering
 194
 195     echo '<div class="sideblock">';
 196     echo '<div class="header"><h2>'.get_string('eventskey', 'calendar').'</h2></div>';
 197     echo '<div class="filters">';
 198     echo calendar_filter_controls($view, $getvars, NULL, $courses);
 199     echo '</div>';
 200     echo '</div>';
 201
 202     echo '<div class="sideblock">';
 203     echo '<div class="header"><h2>'.get_string('monthlyview', 'calendar').'</h2></div>';
 204
 205     echo '<div class="minicalendarblock minicalendartop">';
 206     echo calendar_top_controls('display', array('id' => $courseid, 'm' => $prevmon, 'y' => $prevyr));
 207     echo calendar_get_mini($courses, $groups, $users, $prevmon, $prevyr);
 208     echo '</div><div class="minicalendarblock">';
 209     echo calendar_top_controls('display', array('id' => $courseid, 'm' => $mon, 'y' => $yr));
 210     echo calendar_get_mini($courses, $groups, $users, $mon, $yr);
 211     echo '</div><div class="minicalendarblock">';
 212     echo calendar_top_controls('display', array('id' => $courseid, 'm' => $nextmon, 'y' => $nextyr));
 213     echo calendar_get_mini($courses, $groups, $users, $nextmon, $nextyr);
 214     echo '</div>';
 215     echo '</div>';
 216
 217     echo '</td>';
 218
 219     echo '</tr></table>';
 220
 221     print_footer();
 222
 223
 224
 225 function calendar_show_day($d, $m, $y, $courses, $groups, $users, $courseid) {
 226     global $CFG, $USER;
 227
 228     if (!checkdate($m, $d, $y)) {
 229         $now = usergetdate(time());
 230         list($d, $m, $y) = array(intval($now['mday']), intval($now['mon']), intval($now['year']));
 231     }
 232
 233     $getvars = 'from=day&amp;cal_d='.$d.'&amp;cal_m='.$m.'&amp;cal_y='.$y; // For filtering
 234
 235     $starttime = make_timestamp($y, $m, $d);
 236     $endtime   = make_timestamp($y, $m, $d + 1) - 1;
 237
 238     $events = calendar_get_upcoming($courses, $groups, $users, 1, 100, $starttime);
 239
 240     $text = '';
 241     if (!isguest() && !empty($USER->id) && calendar_user_can_add_event()) {
 242         $text.= '<div class="buttons">';
 243         $text.= '<form action="'.CALENDAR_URL.'event.php" method="get">';
 244         $text.= '<div>';
 245         $text.= '<input type="hidden" name="action" value="new" />';
 246         $text.= '<input type="hidden" name="course" value="'.$courseid.'" />';
 247         $text.= '<input type="hidden" name="cal_d" value="'.$d.'" />';
 248         $text.= '<input type="hidden" name="cal_m" value="'.$m.'" />';
 249         $text.= '<input type="hidden" name="cal_y" value="'.$y.'" />';
 250         $text.= '<input type="submit" value="'.get_string('newevent', 'calendar').'" />';
 251         $text.= '</div></form></div>';
 252     }
 253
 254     $text .= '<label for="cal_course_flt_jump">'.
 255                get_string('dayview', 'calendar').
 256              ':</label>'.
 257              calendar_course_filter_selector($getvars);
 258
 259     echo '<div class="header">'.$text.'</div>';
 260
 261     echo '<div class="controls">'.calendar_top_controls('day', array('id' => $courseid, 'd' => $d, 'm' => $m, 'y' => $y)).'</div>';
 262
 263     if (empty($events)) {
 264         // There is nothing to display today.
 265         echo '<h3>'.get_string('daywithnoevents', 'calendar').'</h3>';
 266
 267     } else {
 268
 269         echo '<div class="eventlist">';
 270
 271         $underway = array();
 272
 273         // First, print details about events that start today
 274         foreach ($events as $event) {
 275
 276             $event->calendarcourseid = $courseid;
 277
 278             if ($event->timestart >= $starttime && $event->timestart <= $endtime) {  // Print it now
 279
 280
 281 /*
 282                 $dayend = calendar_day_representation($event->timestart + $event->timeduration);
 283                 $timeend = calendar_time_representation($event->timestart + $event->timeduration);
 284                 $enddate = usergetdate($event->timestart + $event->timeduration);
 285                 // Set printable representation
 286                 echo calendar_get_link_tag($dayend, CALENDAR_URL.'view.php?view=day'.$morehref.'&amp;', $enddate['mday'], $enddate['mon'], $enddate['year']).' ('.$timeend.')';
 287 */
 288                 //unset($event->time);
 289
 290                 $event->time = calendar_format_event_time($event, time(), '', false, $starttime);
 291                 calendar_print_event($event);
 292
 293             } else {                                                                 // Save this for later
 294                 $underway[] = $event;
 295             }
 296         }
 297
 298         // Then, show a list of all events that just span this day
 299         if (!empty($underway)) {
 300             echo '<h3>'.get_string('spanningevents', 'calendar').':</h3>';
 301             foreach ($underway as $event) {
 302                 $event->time = calendar_format_event_time($event, time(), '', false, $starttime);
 303                 calendar_print_event($event);
 304             }
 305         }
 306
 307         echo '</div>';
 308
 309     }
 310 }
 311
 312 function calendar_show_month_detailed($m, $y, $courses, $groups, $users, $courseid) {
 313     global $CFG, $SESSION, $USER, $CALENDARDAYS;
 314     global $day, $mon, $yr;
 315
 316     $getvars = 'from=month&amp;cal_d='.$day.'&amp;cal_m='.$mon.'&amp;cal_y='.$yr; // For filtering
 317
 318     $display = &New stdClass;
 319     $display->minwday = get_user_preferences('calendar_startwday', CALENDAR_STARTING_WEEKDAY);
 320     $display->maxwday = $display->minwday + 6;
 321
 322     if(!empty($m) && !empty($y)) {
 323         $thisdate = usergetdate(time()); // Time and day at the user's location
 324         if($m == $thisdate['mon'] && $y == $thisdate['year']) {
 325             // Navigated to this month
 326             $date = $thisdate;
 327             $display->thismonth = true;
 328         }
 329         else {
 330             // Navigated to other month, let's do a nice trick and save us a lot of work...
 331             if(!checkdate($m, 1, $y)) {
 332                 $date = array('mday' => 1, 'mon' => $thisdate['mon'], 'year' => $thisdate['year']);
 333                 $display->thismonth = true;
 334             }
 335             else {
 336                 $date = array('mday' => 1, 'mon' => $m, 'year' => $y);
 337                 $display->thismonth = false;
 338             }
 339         }
 340     }
 341     else {
 342         $date = usergetdate(time());
 343         $display->thismonth = true;
 344     }
 345
 346     // Fill in the variables we 're going to use, nice and tidy
 347     list($d, $m, $y) = array($date['mday'], $date['mon'], $date['year']); // This is what we want to display
 348     $display->maxdays = calendar_days_in_month($m, $y);
 349
 350     $startwday = 0;
 351     if (get_user_timezone_offset() < 99) {
 352         // We 'll keep these values as GMT here, and offset them when the time comes to query the db
 353         $display->tstart = gmmktime(0, 0, 0, $m, 1, $y); // This is GMT
 354         $display->tend = gmmktime(23, 59, 59, $m, $display->maxdays, $y); // GMT
 355         $startwday = gmdate('w', $display->tstart); // $display->tstart is already GMT, so don't use date(): messes with server's TZ
 356     } else {
 357         // no timezone info specified
 358         $display->tstart = mktime(0, 0, 0, $m, 1, $y);
 359         $display->tend = mktime(23, 59, 59, $m, $display->maxdays, $y);
 360         $startwday = date('w', $display->tstart); // $display->tstart not necessarily GMT, so use date()
 361     }
 362
 363     // Align the starting weekday to fall in our display range
 364     if($startwday < $display->minwday) {
 365         $startwday += 7;
 366     }
 367
 368     // Get events from database
 369     $events = calendar_get_events(usertime($display->tstart), usertime($display->tend), $users, $groups, $courses);
 370     if (!empty($events)) {
 371         foreach($events as $eventid => $event) {
 372             if (!empty($event->modulename)) {
 373                 $cm = get_coursemodule_from_instance($event->modulename, $event->instance);
 374                 if (!groups_course_module_visible($cm)) {
 375                     unset($events[$eventid]);
 376                 }
 377             }
 378         }
 379     }
 380
 381     // Extract information: events vs. time
 382     calendar_events_by_day($events, $m, $y, $eventsbyday, $durationbyday, $typesbyday, $courses);
 383
 384     $text = '';
 385     if(!isguest() && !empty($USER->id) && calendar_user_can_add_event()) {
 386         $text.= '<div class="buttons"><form action="'.CALENDAR_URL.'event.php" method="get">';
 387         $text.= '<div>';
 388         $text.= '<input type="hidden" name="action" value="new" />';
 389         $text.= '<input type="hidden" name="course" value="'.$courseid.'" />';
 390         $text.= '<input type="hidden" name="cal_m" value="'.$m.'" />';
 391         $text.= '<input type="hidden" name="cal_y" value="'.$y.'" />';
 392         $text.= '<input type="submit" value="'.get_string('newevent', 'calendar').'" />';
 393         $text.= '</div></form></div>';
 394     }
 395
 396     $text .= '<label for="cal_course_flt_jump">'.
 397                get_string('detailedmonthview', 'calendar').
 398              ':</label>'.
 399              calendar_course_filter_selector($getvars);
 400
 401     echo '<div class="header">'.$text.'</div>';
 402
 403     echo '<div class="controls">';
 404     echo calendar_top_controls('month', array('id' => $courseid, 'm' => $m, 'y' => $y));
 405     echo '</div>';
 406
 407     // Start calendar display
 408     echo '<table class="calendarmonth"><tr class="weekdays">'; // Begin table. First row: day names
 409
 410     // Print out the names of the weekdays
 411     for($i = $display->minwday; $i <= $display->maxwday; ++$i) {
 412         // This uses the % operator to get the correct weekday no matter what shift we have
 413         // applied to the $display->minwday : $display->maxwday range from the default 0 : 6
 414         echo '<th scope="col">'.get_string($CALENDARDAYS[$i % 7], 'calendar').'</th>';
 415     }
 416
 417     echo '</tr><tr>'; // End of day names; prepare for day numbers
 418
 419     // For the table display. $week is the row; $dayweek is the column.
 420     $week = 1;
 421     $dayweek = $startwday;
 422
 423     // Paddding (the first week may have blank days in the beginning)
 424     for($i = $display->minwday; $i < $startwday; ++$i) {
 425         echo '<td class="nottoday">&nbsp;</td>'."\n";
 426     }
 427
 428     // Now display all the calendar
 429     for($day = 1; $day <= $display->maxdays; ++$day, ++$dayweek) {
 430         if($dayweek > $display->maxwday) {
 431             // We need to change week (table row)
 432             echo "</tr>\n<tr>";
 433             $dayweek = $display->minwday;
 434             ++$week;
 435         }
 436
 437         // Reset vars
 438         $cell = '';
 439         $dayhref = calendar_get_link_href(CALENDAR_URL.'view.php?view=day&amp;course='.$courseid.'&amp;', $day, $m, $y);
 440
 441         if(CALENDAR_WEEKEND & (1 << ($dayweek % 7))) {
 442             // Weekend. This is true no matter what the exact range is.
 443             $class = 'weekend';
 444         }
 445         else {
 446             // Normal working day.
 447             $class = '';
 448         }
 449
 450         // Special visual fx if an event is defined
 451         if(isset($eventsbyday[$day])) {
 452             if(count($eventsbyday[$day]) == 1) {
 453                 $title = get_string('oneevent', 'calendar');
 454             }
 455             else {
 456                 $title = get_string('manyevents', 'calendar', count($eventsbyday[$day]));
 457             }
 458             $cell = '<div class="day"><a href="'.$dayhref.'" title="'.$title.'">'.$day.'</a></div>';
 459         }
 460         else {
 461             $cell = '<div class="day">'.$day.'</div>';
 462         }
 463
 464         // Special visual fx if an event spans many days
 465         if(isset($typesbyday[$day]['durationglobal'])) {
 466             $class .= ' duration_global';
 467         }
 468         else if(isset($typesbyday[$day]['durationcourse'])) {
 469             $class .= ' duration_course';
 470         }
 471         else if(isset($typesbyday[$day]['durationgroup'])) {
 472             $class .= ' duration_group';
 473         }
 474         else if(isset($typesbyday[$day]['durationuser'])) {
 475             $class .= ' duration_user';
 476         }
 477
 478         // Special visual fx for today
 479         if($display->thismonth && $day == $d) {
 480             $class .= ' today';
 481         } else {
 482             $class .= ' nottoday';
 483         }
 484
 485         // Just display it
 486         if(!empty($class)) {
 487             $class = ' class="'.trim($class).'"';
 488         }
 489         echo '<td'.$class.'>'.$cell;
 490
 491         if(isset($eventsbyday[$day])) {
 492             echo '<ul class="events-new">';
 493             foreach($eventsbyday[$day] as $eventindex) {
 494
 495                 // If event has a class set then add it to the event <li> tag
 496                 $eventclass = '';
 497                 if (!empty($events[$eventindex]->class)) {
 498                     $eventclass = ' class="'.$events[$eventindex]->class.'"';
 499                 }
 500
 501                 echo '<li'.$eventclass.'><a href="'.$dayhref.'#event_'.$events[$eventindex]->id.'">'.format_string($events[$eventindex]->name, true).'</a></li>';
 502             }
 503             echo '</ul>';
 504         }
 505         if(isset($durationbyday[$day])) {
 506             echo '<ul class="events-underway">';
 507             foreach($durationbyday[$day] as $eventindex) {
 508                 echo '<li>['.format_string($events[$eventindex]->name,true).']</li>';
 509             }
 510             echo '</ul>';
 511         }
 512         echo "</td>\n";
 513     }
 514
 515     // Paddding (the last week may have blank days at the end)
 516     for($i = $dayweek; $i <= $display->maxwday; ++$i) {
 517         echo '<td class="nottoday">&nbsp;</td>';
 518     }
 519     echo "</tr>\n"; // Last row ends
 520
 521     echo "</table>\n"; // Tabular display of days ends
 522
 523     // OK, now for the filtering display
 524     echo '<div class="filters"><table><tr>';
 525
 526     // Global events
 527     if($SESSION->cal_show_global) {
 528         echo '<td class="event_global" style="width: 8px;"></td><td><strong>'.get_string('globalevents', 'calendar').':</strong> ';
 529         echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showglobal&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
 530     } else {
 531         echo '<td style="width: 8px;"></td><td><strong>'.get_string('globalevents', 'calendar').':</strong> ';
 532         echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showglobal&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
 533     }
 534
 535     // Course events
 536     if(!empty($SESSION->cal_show_course)) {
 537         echo '<td class="event_course" style="width: 8px;"></td><td><strong>'.get_string('courseevents', 'calendar').':</strong> ';
 538         echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showcourses&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
 539     } else {
 540         echo '<td style="width: 8px;"></td><td><strong>'.get_string('courseevents', 'calendar').':</strong> ';
 541         echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showcourses&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
 542     }
 543
 544     echo "</tr>\n";
 545
 546     if(!empty($USER->id) && !isguest()) {
 547         echo '<tr>';
 548         // Group events
 549         if($SESSION->cal_show_groups) {
 550             echo '<td class="event_group" style="width: 8px;"></td><td><strong>'.get_string('groupevents', 'calendar').':</strong> ';
 551             echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showgroups&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
 552         } else {
 553             echo '<td style="width: 8px;"></td><td><strong>'.get_string('groupevents', 'calendar').':</strong> ';
 554             echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showgroups&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
 555         }
 556         // User events
 557         if($SESSION->cal_show_user) {
 558             echo '<td class="event_user" style="width: 8px;"></td><td><strong>'.get_string('userevents', 'calendar').':</strong> ';
 559             echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showuser&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
 560         } else {
 561             echo '<td style="width: 8px;"></td><td><strong>'.get_string('userevents', 'calendar').':</strong> ';
 562             echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showuser&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
 563         }
 564         echo "</tr>\n";
 565     }
 566
 567     echo '</table></div>';
 568 }
 569
 570 function calendar_show_upcoming_events($courses, $groups, $users, $futuredays, $maxevents, $courseid) {
 571     global $USER;
 572
 573     $events = calendar_get_upcoming($courses, $groups, $users, $futuredays, $maxevents);
 574
 575     $text = '';
 576
 577     if(!isguest() && !empty($USER->id) && calendar_user_can_add_event()) {
 578         $text.= '<div class="buttons">';
 579         $text.= '<form action="'.CALENDAR_URL.'event.php" method="get">';
 580         $text.= '<div>';
 581         $text.= '<input type="hidden" name="action" value="new" />';
 582         $text.= '<input type="hidden" name="course" value="'.$courseid.'" />';
 583         $text.= '<input type="submit" value="'.get_string('newevent', 'calendar').'" />';
 584         $text.= '</div></form></div>';
 585     }
 586
 587     $text .= '<label for="cal_course_flt_jump">'.
 588                get_string('upcomingevents', 'calendar').
 589              ': </label>'.
 590              calendar_course_filter_selector('from=upcoming');
 591
 592     echo '<div class="header">'.$text.'</div>';
 593
 594     if ($events) {
 595
 596         echo '<div class="eventlist">';
 597         foreach ($events as $event) {
 598             $event->calendarcourseid = $courseid;
 599             calendar_print_event($event);
 600         }
 601         echo '</div>';
 602     } else {
 603         print_heading(get_string('noupcomingevents', 'calendar'));
 604     }
 605 }
 606
 607 function calendar_course_filter_selector($getvars = '') {
 608     global $USER, $SESSION;
 609
 610     if (empty($USER->id) or isguest()) {
 611         return '';
 612     }
 613
 614     if (has_capability('moodle/calendar:manageentries', get_context_instance(CONTEXT_SYSTEM)) && !empty($CFG->calendar_adminseesall)) {
 615         $courses = get_courses('all', 'c.shortname','c.id,c.shortname');
 616     } else {
 617         $courses = get_my_courses($USER->id, 'shortname');
 618     }
 619
 620     unset($courses[SITEID]);
 621
 622     $courseoptions[SITEID] = get_string('fulllistofcourses');
 623     foreach ($courses as $course) {
 624         $courseoptions[$course->id] = format_string($course->shortname);
 625     }
 626
 627     if (is_numeric($SESSION->cal_courses_shown)) {
 628         $selected = $SESSION->cal_courses_shown;
 629     } else {
 630         $selected = '';
 631     }
 632
 633     return popup_form(CALENDAR_URL.'set.php?var=setcourse&amp;'.$getvars.'&amp;id=',
 634                        $courseoptions, 'cal_course_flt', $selected, '', '', '', true);
 635 }
 636
 637 ?>