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     $text .= get_string('dayview', 'calendar').': '.calendar_course_filter_selector($getvars);
 255
 256     echo '<div class="header">'.$text.'</div>';
 257
 258     echo '<div class="controls">'.calendar_top_controls('day', array('id' => $courseid, 'd' => $d, 'm' => $m, 'y' => $y)).'</div>';
 259
 260     if (empty($events)) {
 261         // There is nothing to display today.
 262         echo '<h3>'.get_string('daywithnoevents', 'calendar').'</h3>';
 263
 264     } else {
 265
 266         echo '<div class="eventlist">';
 267
 268         $underway = array();
 269
 270         // First, print details about events that start today
 271         foreach ($events as $event) {
 272
 273             $event->calendarcourseid = $courseid;
 274
 275             if ($event->timestart >= $starttime && $event->timestart <= $endtime) {  // Print it now
 276
 277
 278 /*
 279                 $dayend = calendar_day_representation($event->timestart + $event->timeduration);
 280                 $timeend = calendar_time_representation($event->timestart + $event->timeduration);
 281                 $enddate = usergetdate($event->timestart + $event->timeduration);
 282                 // Set printable representation
 283                 echo calendar_get_link_tag($dayend, CALENDAR_URL.'view.php?view=day'.$morehref.'&amp;', $enddate['mday'], $enddate['mon'], $enddate['year']).' ('.$timeend.')';
 284 */
 285                 //unset($event->time);
 286
 287                 $event->time = calendar_format_event_time($event, time(), '', false, $starttime);
 288                 calendar_print_event($event);
 289
 290             } else {                                                                 // Save this for later
 291                 $underway[] = $event;
 292             }
 293         }
 294
 295         // Then, show a list of all events that just span this day
 296         if (!empty($underway)) {
 297             echo '<h3>'.get_string('spanningevents', 'calendar').':</h3>';
 298             foreach ($underway as $event) {
 299                 $event->time = calendar_format_event_time($event, time(), '', false, $starttime);
 300                 calendar_print_event($event);
 301             }
 302         }
 303
 304         echo '</div>';
 305
 306     }
 307 }
 308
 309 function calendar_show_month_detailed($m, $y, $courses, $groups, $users, $courseid) {
 310     global $CFG, $SESSION, $USER, $CALENDARDAYS;
 311     global $day, $mon, $yr;
 312
 313     $getvars = 'from=month&amp;cal_d='.$day.'&amp;cal_m='.$mon.'&amp;cal_y='.$yr; // For filtering
 314
 315     $display = &New stdClass;
 316     $display->minwday = get_user_preferences('calendar_startwday', CALENDAR_STARTING_WEEKDAY);
 317     $display->maxwday = $display->minwday + 6;
 318
 319     if(!empty($m) && !empty($y)) {
 320         $thisdate = usergetdate(time()); // Time and day at the user's location
 321         if($m == $thisdate['mon'] && $y == $thisdate['year']) {
 322             // Navigated to this month
 323             $date = $thisdate;
 324             $display->thismonth = true;
 325         }
 326         else {
 327             // Navigated to other month, let's do a nice trick and save us a lot of work...
 328             if(!checkdate($m, 1, $y)) {
 329                 $date = array('mday' => 1, 'mon' => $thisdate['mon'], 'year' => $thisdate['year']);
 330                 $display->thismonth = true;
 331             }
 332             else {
 333                 $date = array('mday' => 1, 'mon' => $m, 'year' => $y);
 334                 $display->thismonth = false;
 335             }
 336         }
 337     }
 338     else {
 339         $date = usergetdate(time());
 340         $display->thismonth = true;
 341     }
 342
 343     // Fill in the variables we 're going to use, nice and tidy
 344     list($d, $m, $y) = array($date['mday'], $date['mon'], $date['year']); // This is what we want to display
 345     $display->maxdays = calendar_days_in_month($m, $y);
 346
 347     $startwday = 0;
 348     if (get_user_timezone_offset() < 99) {
 349         // We 'll keep these values as GMT here, and offset them when the time comes to query the db
 350         $display->tstart = gmmktime(0, 0, 0, $m, 1, $y); // This is GMT
 351         $display->tend = gmmktime(23, 59, 59, $m, $display->maxdays, $y); // GMT
 352         $startwday = gmdate('w', $display->tstart); // $display->tstart is already GMT, so don't use date(): messes with server's TZ
 353     } else {
 354         // no timezone info specified
 355         $display->tstart = mktime(0, 0, 0, $m, 1, $y);
 356         $display->tend = mktime(23, 59, 59, $m, $display->maxdays, $y);
 357         $startwday = date('w', $display->tstart); // $display->tstart not necessarily GMT, so use date()
 358     }
 359
 360     // Align the starting weekday to fall in our display range
 361     if($startwday < $display->minwday) {
 362         $startwday += 7;
 363     }
 364
 365     // Get events from database
 366     $events = calendar_get_events(usertime($display->tstart), usertime($display->tend), $users, $groups, $courses);
 367     if (!empty($events)) {
 368         foreach($events as $eventid => $event) {
 369             if (!empty($event->modulename)) {
 370                 $cm = get_coursemodule_from_instance($event->modulename, $event->instance);
 371                 if (!groups_course_module_visible($cm)) {
 372                     unset($events[$eventid]);
 373                 }
 374             }
 375         }
 376     }
 377
 378     // Extract information: events vs. time
 379     calendar_events_by_day($events, $m, $y, $eventsbyday, $durationbyday, $typesbyday, $courses);
 380
 381     $text = '';
 382     if(!isguest() && !empty($USER->id) && calendar_user_can_add_event()) {
 383         $text.= '<div class="buttons"><form action="'.CALENDAR_URL.'event.php" method="get">';
 384         $text.= '<div>';
 385         $text.= '<input type="hidden" name="action" value="new" />';
 386         $text.= '<input type="hidden" name="course" value="'.$courseid.'" />';
 387         $text.= '<input type="hidden" name="cal_m" value="'.$m.'" />';
 388         $text.= '<input type="hidden" name="cal_y" value="'.$y.'" />';
 389         $text.= '<input type="submit" value="'.get_string('newevent', 'calendar').'" />';
 390         $text.= '</div></form></div>';
 391     }
 392
 393     $text .= '<label for="cal_course_flt_jump">'.
 394                get_string('detailedmonthview', 'calendar').
 395              ':</label>'.
 396              calendar_course_filter_selector($getvars);
 397
 398     echo '<div class="header">'.$text.'</div>';
 399
 400     echo '<div class="controls">';
 401     echo calendar_top_controls('month', array('id' => $courseid, 'm' => $m, 'y' => $y));
 402     echo '</div>';
 403
 404     // Start calendar display
 405     echo '<table class="calendarmonth"><tr class="weekdays">'; // Begin table. First row: day names
 406
 407     // Print out the names of the weekdays
 408     for($i = $display->minwday; $i <= $display->maxwday; ++$i) {
 409         // This uses the % operator to get the correct weekday no matter what shift we have
 410         // applied to the $display->minwday : $display->maxwday range from the default 0 : 6
 411         echo '<th scope="col">'.get_string($CALENDARDAYS[$i % 7], 'calendar').'</th>';
 412     }
 413
 414     echo '</tr><tr>'; // End of day names; prepare for day numbers
 415
 416     // For the table display. $week is the row; $dayweek is the column.
 417     $week = 1;
 418     $dayweek = $startwday;
 419
 420     // Paddding (the first week may have blank days in the beginning)
 421     for($i = $display->minwday; $i < $startwday; ++$i) {
 422         echo '<td class="nottoday">&nbsp;</td>'."\n";
 423     }
 424
 425     // Now display all the calendar
 426     for($day = 1; $day <= $display->maxdays; ++$day, ++$dayweek) {
 427         if($dayweek > $display->maxwday) {
 428             // We need to change week (table row)
 429             echo "</tr>\n<tr>";
 430             $dayweek = $display->minwday;
 431             ++$week;
 432         }
 433
 434         // Reset vars
 435         $cell = '';
 436         $dayhref = calendar_get_link_href(CALENDAR_URL.'view.php?view=day&amp;course='.$courseid.'&amp;', $day, $m, $y);
 437
 438         if(CALENDAR_WEEKEND & (1 << ($dayweek % 7))) {
 439             // Weekend. This is true no matter what the exact range is.
 440             $class = 'weekend';
 441         }
 442         else {
 443             // Normal working day.
 444             $class = '';
 445         }
 446
 447         // Special visual fx if an event is defined
 448         if(isset($eventsbyday[$day])) {
 449             if(count($eventsbyday[$day]) == 1) {
 450                 $title = get_string('oneevent', 'calendar');
 451             }
 452             else {
 453                 $title = get_string('manyevents', 'calendar', count($eventsbyday[$day]));
 454             }
 455             $cell = '<div class="day"><a href="'.$dayhref.'" title="'.$title.'">'.$day.'</a></div>';
 456         }
 457         else {
 458             $cell = '<div class="day">'.$day.'</div>';
 459         }
 460
 461         // Special visual fx if an event spans many days
 462         if(isset($typesbyday[$day]['durationglobal'])) {
 463             $class .= ' duration_global';
 464         }
 465         else if(isset($typesbyday[$day]['durationcourse'])) {
 466             $class .= ' duration_course';
 467         }
 468         else if(isset($typesbyday[$day]['durationgroup'])) {
 469             $class .= ' duration_group';
 470         }
 471         else if(isset($typesbyday[$day]['durationuser'])) {
 472             $class .= ' duration_user';
 473         }
 474
 475         // Special visual fx for today
 476         if($display->thismonth && $day == $d) {
 477             $class .= ' today';
 478         } else {
 479             $class .= ' nottoday';
 480         }
 481
 482         // Just display it
 483         if(!empty($class)) {
 484             $class = ' class="'.trim($class).'"';
 485         }
 486         echo '<td'.$class.'>'.$cell;
 487
 488         if(isset($eventsbyday[$day])) {
 489             echo '<ul class="events-new">';
 490             foreach($eventsbyday[$day] as $eventindex) {
 491
 492                 // If event has a class set then add it to the event <li> tag
 493                 $eventclass = '';
 494                 if (!empty($events[$eventindex]->class)) {
 495                     $eventclass = ' class="'.$events[$eventindex]->class.'"';
 496                 }
 497
 498                 echo '<li'.$eventclass.'><a href="'.$dayhref.'#event_'.$events[$eventindex]->id.'">'.format_string($events[$eventindex]->name, true).'</a></li>';
 499             }
 500             echo '</ul>';
 501         }
 502         if(isset($durationbyday[$day])) {
 503             echo '<ul class="events-underway">';
 504             foreach($durationbyday[$day] as $eventindex) {
 505                 echo '<li>['.format_string($events[$eventindex]->name,true).']</li>';
 506             }
 507             echo '</ul>';
 508         }
 509         echo "</td>\n";
 510     }
 511
 512     // Paddding (the last week may have blank days at the end)
 513     for($i = $dayweek; $i <= $display->maxwday; ++$i) {
 514         echo '<td class="nottoday">&nbsp;</td>';
 515     }
 516     echo "</tr>\n"; // Last row ends
 517
 518     echo "</table>\n"; // Tabular display of days ends
 519
 520         // OK, now for the filtering display
 521              echo '<div class="filters"><table><tr>';
 522
 523              // Global events
 524              if($SESSION->cal_show_global) {
 525                  echo '<td class="event_global" style="width: 8px;"></td><td><strong>'.get_string('globalevents', 'calendar').':</strong> ';
 526                  echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showglobal&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
 527              }
 528              else {
 529                  echo '<td style="width: 8px;"></td><td><strong>'.get_string('globalevents', 'calendar').':</strong> ';
 530                  echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showglobal&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
 531              }
 532
 533              // Course events
 534              if(!empty($SESSION->cal_show_course)) {
 535                  echo '<td class="event_course" style="width: 8px;"></td><td><strong>'.get_string('courseevents', 'calendar').':</strong> ';
 536                  echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showcourses&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
 537              }
 538              else {
 539                  echo '<td style="width: 8px;"></td><td><strong>'.get_string('courseevents', 'calendar').':</strong> ';
 540                  echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showcourses&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
 541              }
 542
 543              echo "</tr>\n";
 544
 545              if(!empty($USER->id) && !isguest()) {
 546                  echo '<tr>';
 547                  // Group events
 548                  if($SESSION->cal_show_groups) {
 549                      echo '<td class="event_group" style="width: 8px;"></td><td><strong>'.get_string('groupevents', 'calendar').':</strong> ';
 550                      echo get_string('shown', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showgroups&amp;'.$getvars.'">'.get_string('clickhide', 'calendar').'</a>)</td>'."\n";
 551                  }
 552                  else {
 553                      echo '<td style="width: 8px;"></td><td><strong>'.get_string('groupevents', 'calendar').':</strong> ';
 554                      echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showgroups&amp;'.$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                  }
 561                  else {
 562                      echo '<td style="width: 8px;"></td><td><strong>'.get_string('userevents', 'calendar').':</strong> ';
 563                      echo get_string('hidden', 'calendar').' (<a href="'.CALENDAR_URL.'set.php?var=showuser&amp;'.$getvars.'">'.get_string('clickshow', 'calendar').'</a>)</td>'."\n";
 564                  }
 565                  echo "</tr>\n";
 566              }
 567
 568              echo '</table></div>';
 569 }
 570
 571 function calendar_show_upcoming_events($courses, $groups, $users, $futuredays, $maxevents, $courseid) {
 572     global $USER;
 573
 574     $events = calendar_get_upcoming($courses, $groups, $users, $futuredays, $maxevents);
 575
 576     $text = '';
 577
 578     if(!isguest() && !empty($USER->id) && calendar_user_can_add_event()) {
 579         $text.= '<div class="buttons">';
 580         $text.= '<form action="'.CALENDAR_URL.'event.php" method="get">';
 581         $text.= '<div>';
 582         $text.= '<input type="hidden" name="action" value="new" />';
 583         $text.= '<input type="hidden" name="course" value="'.$courseid.'" />';
 584         /*
 585         $text.= '<input type="hidden" name="cal_m" value="'.$m.'" />';
 586         $text.= '<input type="hidden" name="cal_y" value="'.$y.'" />';
 587         */
 588         $text.= '<input type="submit" value="'.get_string('newevent', 'calendar').'" />';
 589         $text.= '</div></form></div>';
 590     }
 591
 592     $text .= get_string('upcomingevents', 'calendar').': '.calendar_course_filter_selector('from=upcoming');
 593
 594     echo '<div class="header">'.$text.'</div>';
 595
 596     if ($events) {
 597
 598         echo '<div class="eventlist">';
 599         foreach ($events as $event) {
 600             $event->calendarcourseid = $courseid;
 601             calendar_print_event($event);
 602         }
 603         echo '</div>';
 604     } else {
 605         print_heading(get_string('noupcomingevents', 'calendar'));
 606     }
 607 }
 608
 609 function calendar_course_filter_selector($getvars = '') {
 610     global $USER, $SESSION;
 611
 612     if (empty($USER->id) or isguest()) {
 613         return '';
 614     }
 615
 616     if (has_capability('moodle/calendar:manageentries', get_context_instance(CONTEXT_SYSTEM)) && !empty($CFG->calendar_adminseesall)) {
 617         $courses = get_courses('all', 'c.shortname','c.id,c.shortname');
 618     } else {
 619         $courses = get_my_courses($USER->id, 'shortname');
 620     }
 621
 622     unset($courses[SITEID]);
 623
 624     $courseoptions[SITEID] = get_string('fulllistofcourses');
 625     foreach ($courses as $course) {
 626         $courseoptions[$course->id] = format_string($course->shortname);
 627     }
 628
 629     if (is_numeric($SESSION->cal_courses_shown)) {
 630         $selected = $SESSION->cal_courses_shown;
 631     } else {
 632         $selected = '';
 633     }
 634
 635     return popup_form(CALENDAR_URL.'set.php?var=setcourse&amp;'.$getvars.'&amp;id=',
 636                        $courseoptions, 'cal_course_flt', $selected, '', '', '', true);
 637 }
 638
 639 ?>