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