calendar/renderer.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * This file contains the renderers for the calendar within Moodle
  20  *
  21  * @copyright 2010 Sam Hemelryk
  22  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @package calendar
  24  */
  25
  26 /**
  27  * The primary renderer for the calendar.
  28  */
  29 class core_calendar_renderer extends plugin_renderer_base {
  30
  31     /**
  32      * Creates a basic export form
  33      *
  34      * @param bool $allowthisweek
  35      * @param bool $allownextweek
  36      * @param bool $allownextmonth
  37      * @param string $username
  38      * @param string $authtoken
  39      * @return string
  40      */
  41     public function basic_export_form($allowthisweek, $allownextweek, $allownextmonth, $username, $authtoken) {
  42
  43         $output  = html_writer::tag('div', get_string('export', 'calendar'), array('class'=>'header'));
  44         $output .= html_writer::start_tag('fieldset');
  45         $output .= html_writer::tag('legend', get_string('commontasks', 'calendar'));
  46         $output .= html_writer::start_tag('form', array('action'=>new moodle_url('/calendar/export_execute.php'), 'method'=>'get'));
  47
  48         $output .= html_writer::tag('div', get_string('iwanttoexport', 'calendar'));
  49
  50         $output .= html_writer::start_tag('div', array('class'=>'indent'));
  51         $output .= html_writer::empty_tag('input', array('type'=>'radio', 'name'=>'preset_what', 'id'=>'pw_all', 'value'=>'all', 'checked'=>'checked'));
  52         $output .= html_writer::tag('label', get_string('eventsall', 'calendar'), array('for'=>'pw_all'));
  53         $output .= html_writer::empty_tag('br');
  54         $output .= html_writer::empty_tag('input', array('type'=>'radio', 'name'=>'preset_what', 'id'=>'pw_course', 'value'=>'courses'));
  55         $output .= html_writer::tag('label', get_string('eventsrelatedtocourses', 'calendar'), array('for'=>'pw_course'));
  56         $output .= html_writer::empty_tag('br');
  57         $output .= html_writer::end_tag('div');
  58
  59         $output .= html_writer::tag('div', get_string('for', 'calendar').':');
  60
  61         $output .= html_writer::start_tag('div', array('class'=>'indent'));
  62         if ($allowthisweek) {
  63             $output .= html_writer::empty_tag('input', array('type'=>'radio', 'name'=>'preset_time', 'id'=>'pt_wknow', 'value'=>'weeknow', 'checked'=>'checked'));
  64             $output .= html_writer::tag('label', get_string('weekthis', 'calendar'), array('for'=>'pt_wknow'));
  65             $output .= html_writer::empty_tag('br');
  66         }
  67         if ($allownextweek) {
  68             $output .= html_writer::empty_tag('input', array('type'=>'radio', 'name'=>'preset_time', 'id'=>'pt_wknext', 'value'=>'weeknext'));
  69             $output .= html_writer::tag('label', get_string('weeknext', 'calendar'), array('for'=>'pt_wknext'));
  70             $output .= html_writer::empty_tag('br');
  71         }
  72         $output .= html_writer::empty_tag('input', array('type'=>'radio', 'name'=>'preset_time', 'id'=>'pt_monnow', 'value'=>'monthnow'));
  73         $output .= html_writer::tag('label', get_string('monththis', 'calendar'), array('for'=>'pt_monnow'));
  74         $output .= html_writer::empty_tag('br');
  75         if ($allownextmonth) {
  76             $output .= html_writer::empty_tag('input', array('type'=>'radio', 'name'=>'preset_time', 'id'=>'pt_monnext', 'value'=>'monthnext'));
  77             $output .= html_writer::tag('label', get_string('monthnext', 'calendar'), array('for'=>'pt_monnext'));
  78             $output .= html_writer::empty_tag('br');
  79         }
  80         $output .= html_writer::empty_tag('input', array('type'=>'radio', 'name'=>'preset_time', 'id'=>'pt_recupc', 'value'=>'recentupcoming'));
  81         $output .= html_writer::tag('label', get_string('recentupcoming', 'calendar'), array('for'=>'pt_recupc'));
  82         $output .= html_writer::empty_tag('br');
  83         $output .= html_writer::end_tag('div');
  84
  85         $output .= html_writer::start_tag('div', array('class'=>'rightalign'));
  86         $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'cal_d', 'value'=>''));
  87         $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'cal_m', 'value'=>''));
  88         $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'cal_y', 'value'=>''));
  89         $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'username', 'value'=>$username));
  90         $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'authtoken', 'value'=>$authtoken));
  91
  92         $output .= html_writer::empty_tag('input', array('type'=>'button', 'id'=>'generateurl', 'value'=>get_string('generateurlbutton', 'calendar')));
  93         $output .= html_writer::empty_tag('input', array('type'=>'submit', 'value'=>get_string('exportbutton', 'calendar')));
  94
  95         $output .= html_writer::end_tag('div');
  96
  97         $output .= html_writer::end_tag('form');
  98         $output .= html_writer::end_tag('fieldset');
  99
 100         $output .= html_writer::start_tag('div', array('id'=>'urlbox', 'style'=>'display:none;'));
 101         $output .= html_writer::tag('p', get_string('urlforical', 'calendar'));
 102         $output .= html_writer::tag('div', '', array('id'=>'url', 'style'=>'overflow:scroll;width:650px;'));
 103         $output .= html_writer::end_tag('div');
 104
 105         $this->page->requires->yui_module('moodle-calendar-eventmanager', 'M.core_calendar.init_basic_export', array($allowthisweek, $allownextweek, $allownextmonth, $username, $authtoken));
 106
 107         return $output;
 108     }
 109
 110     /**
 111      * Starts the standard layout for the page
 112      *
 113      * @return string
 114      */
 115     public function start_layout() {
 116         return html_writer::start_tag('div', array('class'=>'maincalendar'));
 117     }
 118
 119     /**
 120      * Creates the remainder of the layout
 121      *
 122      * @return string
 123      */
 124     public function complete_layout() {
 125         return html_writer::end_tag('div');
 126     }
 127
 128     /**
 129      * Produces the content for the filters block (pretend block)
 130      *
 131      * @param int $courseid
 132      * @param int $day
 133      * @param int $month
 134      * @param int $year
 135      * @param int $view
 136      * @param int $courses
 137      * @return string
 138      */
 139     public function fake_block_filters($courseid, $day, $month, $year, $view, $courses) {
 140         $getvars = 'id='.$courseid.'&amp;cal_d='.$day.'&amp;cal_m='.$month.'&amp;cal_y='.$year;
 141         return html_writer::tag('div', calendar_filter_controls($view, $getvars, NULL, $courses), array('class'=>'calendar_filters filters'));
 142     }
 143
 144     /**
 145      * Produces the content for the three months block (pretend block)
 146      *
 147      * This includes the previous month, the current month, and the next month
 148      *
 149      * @param calendar_information $calendar
 150      * @return string
 151      */
 152     public function fake_block_threemonths(calendar_information $calendar) {
 153
 154         list($prevmon, $prevyr) = calendar_sub_month($calendar->month, $calendar->year);
 155         list($nextmon, $nextyr) = calendar_add_month($calendar->month, $calendar->year);
 156
 157         $content  = html_writer::start_tag('div', array('class'=>'minicalendarblock'));
 158         $content .= calendar_top_controls('display', array('id' => $calendar->courseid, 'm' => $prevmon, 'y' => $prevyr));
 159         $content .= calendar_get_mini($calendar->courses, $calendar->groups, $calendar->users, $prevmon, $prevyr);
 160         $content .= html_writer::end_tag('div');
 161         $content .= html_writer::start_tag('div', array('class'=>'minicalendarblock'));
 162         $content .= calendar_top_controls('display', array('id' => $calendar->courseid, 'm' => $calendar->month, 'y' => $calendar->year));
 163         $content .= calendar_get_mini($calendar->courses, $calendar->groups, $calendar->users, $calendar->month, $calendar->year);
 164         $content .= html_writer::end_tag('div');
 165         $content .= html_writer::start_tag('div', array('class'=>'minicalendarblock'));
 166         $content .= calendar_top_controls('display', array('id' => $calendar->courseid, 'm' => $nextmon, 'y' => $nextyr));
 167         $content .= calendar_get_mini($calendar->courses, $calendar->groups, $calendar->users, $nextmon, $nextyr);
 168         $content .= html_writer::end_tag('div');
 169         return $content;
 170     }
 171
 172     /**
 173      * Adds a pretent calendar block
 174      *
 175      * @param block_contents $bc
 176      * @param mixed $pos BLOCK_POS_RIGHT | BLOCK_POS_LEFT
 177      */
 178     public function add_pretend_calendar_block(block_contents $bc, $pos=BLOCK_POS_RIGHT) {
 179         $this->page->blocks->add_fake_block($bc, $pos);
 180     }
 181
 182     /**
 183      * Creates a button to add a new event
 184      *
 185      * @param int $courseid
 186      * @param int $day
 187      * @param int $month
 188      * @param int $year
 189      * @return string
 190      */
 191     protected function add_event_button($courseid, $day=null, $month=null, $year=null) {
 192         $output = html_writer::start_tag('div', array('class'=>'buttons'));
 193         $output .= html_writer::start_tag('form', array('action'=>CALENDAR_URL.'event.php', 'method'=>'get'));
 194         $output .= html_writer::start_tag('div');
 195         $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'action', 'value'=>'new'));
 196         $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'course', 'value'=>$courseid));
 197         if ($day !== null) {
 198             $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'cal_d', 'value'=>$day));
 199         }
 200         if ($month !== null) {
 201             $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'cal_m', 'value'=>$month));
 202         }
 203         if ($year !== null) {
 204             $output .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'cal_y', 'value'=>$year));
 205         }
 206         $output .= html_writer::empty_tag('input', array('type'=>'submit', 'value'=>get_string('newevent', 'calendar')));
 207         $output .= html_writer::end_tag('div');
 208         $output .= html_writer::end_tag('form');
 209         $output .= html_writer::end_tag('div');
 210         return $output;
 211     }
 212
 213     /**
 214      * Displays the calendar for a single day
 215      *
 216      * @param calendar_information $calendar
 217      * @return string
 218      */
 219     public function show_day(calendar_information $calendar) {
 220         $calendar->checkdate();
 221         $events = calendar_get_upcoming($calendar->courses, $calendar->groups, $calendar->users, 1, 100, $calendar->timestamp_today());
 222
 223         $output  = html_writer::start_tag('div', array('class'=>'header'));
 224         if (!isguestuser() && isloggedin() && calendar_user_can_add_event()) {
 225             $output .= $this->add_event_button($calendar->courseid, $calendar->day, $calendar->month, $calendar->year);
 226         }
 227         //$output .= html_writer::tag('label', get_string('dayview', 'calendar'), array('for'=>'cal_course_flt_jump'));
 228         $output .= $this->course_filter_selector(array('from'=>'day', 'cal_d'=>$calendar->day, 'cal_m'=>$calendar->month, 'cal_y'=>$calendar->year), get_string('dayview', 'calendar'));
 229         $output .= html_writer::end_tag('div');
 230         // Controls
 231         $output .= html_writer::tag('div', calendar_top_controls('day', array('id' => $calendar->courseid, 'd' => $calendar->day, 'm' => $calendar->month, 'y' => $calendar->year)), array('class'=>'controls'));
 232
 233         if (empty($events)) {
 234             // There is nothing to display today.
 235             $output .= $this->output->heading(get_string('daywithnoevents', 'calendar'), 3);
 236         } else {
 237             $output .= html_writer::start_tag('div', array('class'=>'eventlist'));
 238             $underway = array();
 239             // First, print details about events that start today
 240             foreach ($events as $event) {
 241                 $event = new calendar_event($event);
 242                 $event->calendarcourseid = $calendar->courseid;
 243                 if ($event->timestart >= $calendar->timestamp_today() && $event->timestart <= $calendar->timestamp_tomorrow()-1) {  // Print it now
 244                     $event->time = calendar_format_event_time($event, time(), null, false, $calendar->timestamp_today());
 245                     $output .= $this->event($event);
 246                 } else {                                                                 // Save this for later
 247                     $underway[] = $event;
 248                 }
 249             }
 250
 251             // Then, show a list of all events that just span this day
 252             if (!empty($underway)) {
 253                 $output .= $this->output->heading(get_string('spanningevents', 'calendar'), 3);
 254                 foreach ($underway as $event) {
 255                     $event->time = calendar_format_event_time($event, time(), null, false, $calendar->timestamp_today());
 256                     $output .= $this->event($event);
 257                 }
 258             }
 259
 260             $output .= html_writer::end_tag('div');
 261         }
 262
 263         return $output;
 264     }
 265
 266     /**
 267      * Displays an event
 268      *
 269      * @param calendar_event $event
 270      * @param bool $showactions
 271      * @return string
 272      */
 273     public function event(calendar_event $event, $showactions=true) {
 274         $event = calendar_add_event_metadata($event);
 275
 276         $anchor  = html_writer::tag('a', '', array('name'=>'event_'.$event->id));
 277
 278         $table = new html_table();
 279         $table->attributes = array('class'=>'event', 'cellspacing'=>'0');
 280         $table->data = array(
 281             0 => new html_table_row(),
 282             1 => new html_table_row(),
 283         );
 284
 285         if (!empty($event->icon)) {
 286             $table->data[0]->cells[0] = new html_table_cell($anchor.$event->icon);
 287         } else {
 288             $table->data[0]->cells[0] = new html_table_cell($anchor.$this->output->spacer(array('height'=>16, 'width'=>16, 'br'=>true)));
 289         }
 290         $table->data[0]->cells[0]->attributes['class'] .= ' picture';
 291
 292         $table->data[0]->cells[1] = new html_table_cell();
 293         $table->data[0]->cells[1]->attributes['class'] .= ' topic';
 294         if (!empty($event->referer)) {
 295             $table->data[0]->cells[1]->text .= html_writer::tag('div', $event->referer, array('class'=>'referer'));
 296         } else {
 297             $table->data[0]->cells[1]->text .= html_writer::tag('div', $event->name, array('class'=>'name'));
 298         }
 299         if (!empty($event->courselink)) {
 300             $table->data[0]->cells[1]->text .= html_writer::tag('div', $event->courselink, array('class'=>'course'));
 301         }
 302         if (!empty($event->time)) {
 303             $table->data[0]->cells[1]->text .= html_writer::tag('span', $event->time, array('class'=>'date'));
 304         } else {
 305             $table->data[0]->cells[1]->text .= html_writer::tag('span', calendar_time_representation($event->timestart), array('class'=>'date'));
 306         }
 307
 308         $table->data[1]->cells[0] = new html_table_cell('&nbsp;');
 309         $table->data[1]->cells[0]->attributes['class'] .= 'side';
 310
 311         $table->data[1]->cells[1] = new html_table_cell($event->description);
 312         $table->data[1]->cells[1]->attributes['class'] .= ' description';
 313         if (isset($event->cssclass)) {
 314             $table->data[1]->cells[1]->attributes['class'] .= ' '.$event->cssclass;
 315         }
 316
 317         if (calendar_edit_event_allowed($event) && $showactions) {
 318             if (empty($event->cmid)) {
 319                 $editlink = new moodle_url(CALENDAR_URL.'event.php', array('action'=>'edit', 'id'=>$event->id));
 320                 $deletelink = new moodle_url(CALENDAR_URL.'delete.php', array('id'=>$event->id));
 321                 if (!empty($event->calendarcourseid)) {
 322                     $editlink->param('course', $event->calendarcourseid);
 323                     $deletelink->param('course', $event->calendarcourseid);
 324                 }
 325             } else {
 326                 $editlink = new moodle_url('/course/mod.php', array('update'=>$event->cmid, 'return'=>true, 'sesskey'=>sesskey()));
 327                 $deletelink = null;
 328             }
 329
 330             $commands  = html_writer::start_tag('div', array('class'=>'commands'));
 331             $commands .= html_writer::start_tag('a', array('href'=>$editlink));
 332             $commands .= html_writer::empty_tag('img', array('src'=>$this->output->pix_url('t/edit'), 'alt'=>get_string('tt_editevent', 'calendar'), 'title'=>get_string('tt_editevent', 'calendar')));
 333             $commands .= html_writer::end_tag('a');
 334             if ($deletelink != null) {
 335                 $commands .= html_writer::start_tag('a', array('href'=>$deletelink));
 336                 $commands .= html_writer::empty_tag('img', array('src'=>$this->output->pix_url('t/delete'), 'alt'=>get_string('tt_deleteevent', 'calendar'), 'title'=>get_string('tt_deleteevent', 'calendar')));
 337                 $commands .= html_writer::end_tag('a');
 338             }
 339             $commands .= html_writer::end_tag('div');
 340             $table->data[1]->cells[1]->text .= $commands;
 341         }
 342         return html_writer::table($table);
 343     }
 344
 345     /**
 346      * Displays a month in detail
 347      *
 348      * @global array $CALENDARDAYS
 349      * @param calendar_information $calendar
 350      * @return string
 351      */
 352     public function show_month_detailed(calendar_information $calendar) {
 353         global $CALENDARDAYS;
 354
 355         $date = usergetdate(time());
 356
 357         $display = new stdClass;
 358         $display->minwday = get_user_preferences('calendar_startwday', calendar_get_starting_weekday());
 359         $display->maxwday = $display->minwday + 6;
 360         $display->thismonth = ($date['mon'] == $calendar->month);
 361         $display->maxdays = calendar_days_in_month($calendar->month, $calendar->year);
 362
 363         $startwday = 0;
 364         if (get_user_timezone_offset() < 99) {
 365             // We 'll keep these values as GMT here, and offset them when the time comes to query the db
 366             $display->tstart = gmmktime(0, 0, 0, $calendar->month, 1, $calendar->year); // This is GMT
 367             $display->tend = gmmktime(23, 59, 59, $calendar->month, $display->maxdays, $calendar->year); // GMT
 368             $startwday = gmdate('w', $display->tstart); // $display->tstart is already GMT, so don't use date(): messes with server's TZ
 369         } else {
 370             // no timezone info specified
 371             $display->tstart = mktime(0, 0, 0, $calendar->month, 1, $calendar->year);
 372             $display->tend = mktime(23, 59, 59, $calendar->month, $display->maxdays, $calendar->year);
 373             $startwday = date('w', $display->tstart); // $display->tstart not necessarily GMT, so use date()
 374         }
 375
 376         // Align the starting weekday to fall in our display range
 377         if ($startwday < $display->minwday) {
 378             $startwday += 7;
 379         }
 380
 381         // Get events from database
 382         $events = calendar_get_events(usertime($display->tstart), usertime($display->tend), $calendar->users, $calendar->groups, $calendar->courses);
 383         if (!empty($events)) {
 384             foreach($events as $eventid => $event) {
 385                 $event = new calendar_event($event);
 386                 if (!empty($event->modulename)) {
 387                     $cm = get_coursemodule_from_instance($event->modulename, $event->instance);
 388                     if (!groups_course_module_visible($cm)) {
 389                         unset($events[$eventid]);
 390                     }
 391                 }
 392             }
 393         }
 394
 395         // Extract information: events vs. time
 396         calendar_events_by_day($events, $calendar->month, $calendar->year, $eventsbyday, $durationbyday, $typesbyday, $calendar->courses);
 397
 398         $output  = html_writer::start_tag('div', array('class'=>'header'));
 399         if(!isguestuser() && isloggedin() && calendar_user_can_add_event()) {
 400             $output .= $this->add_event_button($calendar->courseid, null, $calendar->month, $calendar->year);
 401         }
 402         $output .= get_string('detailedmonthview', 'calendar').': '.$this->course_filter_selector(array('from'=>'month', 'cal_d'=>$calendar->day, 'cal_m'=>$calendar->month, 'cal_y'=>$calendar->year));
 403         $output .= html_writer::end_tag('div', array('class'=>'header'));
 404         // Controls
 405         $output .= html_writer::tag('div', calendar_top_controls('month', array('id' => $calendar->courseid, 'm' => $calendar->month, 'y' => $calendar->year)), array('class'=>'controls'));
 406
 407         $table = new html_table();
 408         $table->attributes = array('class'=>'calendarmonth calendartable');
 409         $table->data = array();
 410
 411         $header = new html_table_row();
 412         $header->attributes = array('class'=>'weekdays');
 413         $header->cells = array();
 414         for($i = $display->minwday; $i <= $display->maxwday; ++$i) {
 415             // This uses the % operator to get the correct weekday no matter what shift we have
 416             // applied to the $display->minwday : $display->maxwday range from the default 0 : 6
 417             $cell = new html_table_cell(get_string($CALENDARDAYS[$i % 7], 'calendar'));
 418             $cell->header = true;
 419             $header->cells[] = $cell;
 420         }
 421
 422         // For the table display. $week is the row; $dayweek is the column.
 423         $week = 1;
 424         $dayweek = $startwday;
 425
 426         $row = new html_table_row(array());
 427         // Paddding (the first week may have blank days in the beginning)
 428         for($i = $display->minwday; $i < $startwday; ++$i) {
 429             $cell = new html_table_cell('&nbsp;');
 430             $cell->attributes = array('class'=>'nottoday');
 431             $row->cells[] = $cell;
 432         }
 433
 434         // Now display all the calendar
 435         for ($calendar->day = 1; $calendar->day <= $display->maxdays; ++$calendar->day, ++$dayweek) {
 436             if($dayweek > $display->maxwday) {
 437                 // We need to change week (table row)
 438                 $table->data[] = $row;
 439                 $row = new html_table_row(array());
 440                 $dayweek = $display->minwday;
 441                 ++$week;
 442             }
 443
 444             // Reset vars
 445             $cell = new html_table_cell();
 446             $dayhref = calendar_get_link_href(new moodle_url(CALENDAR_URL.'view.php', array('view'=>'day', 'course'=>$calendar->courseid)), $calendar->day, $calendar->month, $calendar->year);
 447
 448             $cellclasses = array();
 449
 450             if(CALENDAR_WEEKEND & (1 << ($dayweek % 7))) {
 451                 // Weekend. This is true no matter what the exact range is.
 452                 $cellclasses[] = 'weekend';
 453             }
 454
 455             // Special visual fx if an event is defined
 456             if (isset($eventsbyday[$calendar->day])) {
 457                 if(count($eventsbyday[$calendar->day]) == 1) {
 458                     $title = get_string('oneevent', 'calendar');
 459                 } else {
 460                     $title = get_string('manyevents', 'calendar', count($eventsbyday[$calendar->day]));
 461                 }
 462                 $cell->text = html_writer::tag('div', html_writer::link($dayhref, $calendar->day, array('title'=>$title)), array('class'=>'day'));
 463             } else {
 464                 $cell->text = html_writer::tag('div', $calendar->day, array('class'=>'day'));
 465             }
 466
 467             // Special visual fx if an event spans many days
 468             $durationclass = false;
 469             if (isset($typesbyday[$calendar->day]['durationglobal'])) {
 470                 $durationclass = 'duration_global';
 471             } else if (isset($typesbyday[$calendar->day]['durationcourse'])) {
 472                 $durationclass = 'duration_course';
 473             } else if (isset($typesbyday[$calendar->day]['durationgroup'])) {
 474                 $durationclass = 'duration_group';
 475             } else if (isset($typesbyday[$calendar->day]['durationuser'])) {
 476                 $durationclass = 'duration_user';
 477             }
 478             if ($durationclass) {
 479                 $cellclasses[] = 'duration';
 480                 $cellclasses[] = $durationclass;
 481             }
 482
 483             // Special visual fx for today
 484             if($display->thismonth && $calendar->day == $calendar->day) {
 485                 $cellclasses[] = 'today';
 486             } else {
 487                 $cellclasses[] = 'nottoday';
 488             }
 489             $cell->attributes = array('class'=>join(' ',$cellclasses));
 490
 491             if (isset($eventsbyday[$calendar->day])) {
 492                 $cell->text .= html_writer::start_tag('ul', array('class'=>'events-new'));
 493                 foreach($eventsbyday[$calendar->day] as $eventindex) {
 494                     // If event has a class set then add it to the event <li> tag
 495                     $attributes = array();
 496                     if (!empty($events[$eventindex]->class)) {
 497                         $attributes['class'] = $events[$eventindex]->class;
 498                     }
 499                     $dayhref->set_anchor('event_'.$events[$eventindex]->id);
 500                     $link = html_writer::link($dayhref, format_string($events[$eventindex]->name, true));
 501                     $cell->text .= html_writer::tag('li', $link, $attributes);
 502                 }
 503                 $cell->text .= html_writer::end_tag('ul');
 504             }
 505             if (isset($durationbyday[$calendar->day])) {
 506                 $cell->text .= html_writer::start_tag('ul', array('class'=>'events-underway'));
 507                 foreach($durationbyday[$calendar->day] as $eventindex) {
 508                     $cell->text .= html_writer::tag('li', '['.format_string($events[$eventindex]->name,true).']', array('class'=>'events-underway'));
 509                 }
 510                 $cell->text .= html_writer::end_tag('ul');
 511             }
 512             $row->cells[] = $cell;
 513         }
 514
 515         // Paddding (the last week may have blank days at the end)
 516         for($i = $dayweek; $i <= $display->maxwday; ++$i) {
 517             $cell = new html_table_cell('&nbsp;');
 518             $cell->attributes = array('class'=>'nottoday');
 519             $row->cells[] = $cell;
 520         }
 521         $table->data[] = $row;
 522         $output .= html_writer::table($table);
 523
 524         // OK, now for the filtering display
 525         $output .= $this->filter_selection_table($calendar);
 526         return $output;
 527     }
 528
 529     /**
 530      * Displays a filter selection table
 531      *
 532      * @param calendar_information $calendar
 533      * @return string
 534      */
 535     protected function filter_selection_table(calendar_information $calendar) {
 536         global $SESSION;
 537
 538         $output  = html_writer::start_tag('div', array('class'=>'filters'));
 539         $output .= html_writer::start_tag('table');
 540         $output .= html_writer::start_tag('tr');
 541
 542         // Global events
 543         $link = new moodle_url(CALENDAR_URL.'set.php', array('var'=>'showglobal', 'from'=>'month', 'cal_d'=>$calendar->day, 'cal_m'=>$calendar->month, 'cal_y'=>$calendar->year));
 544         if($SESSION->cal_show_global) {
 545             $output .= html_writer::tag('td', '', array('class'=>'calendar_event_global', 'style'=>'width:8px;'));
 546             $output .= html_writer::tag('td', html_writer::tag('strong', get_string('globalevents', 'calendar')).' '.get_string('shown', 'calendar').' ('.html_writer::link($link, get_string('clickhide', 'calendar')).')');
 547         } else {
 548             $output .= html_writer::tag('td', '', array('style'=>'width:8px;'));
 549             $output .= html_writer::tag('td', html_writer::tag('strong', get_string('globalevents', 'calendar')).' '.get_string('hidden', 'calendar').' ('.html_writer::link($link, get_string('clickshow', 'calendar')).')');
 550         }
 551
 552         // Course events
 553         $link = new moodle_url(CALENDAR_URL.'set.php', array('var'=>'showcourses', 'from'=>'month', 'cal_d'=>$calendar->day, 'cal_m'=>$calendar->month, 'cal_y'=>$calendar->year));
 554         if(!empty($SESSION->cal_show_course)) {
 555             $output .= html_writer::tag('td', '', array('class'=>'calendar_event_course', 'style'=>'width:8px;'));
 556             $output .= html_writer::tag('td', html_writer::tag('strong', get_string('courseevents', 'calendar')).' '.get_string('shown', 'calendar').' ('.html_writer::link($link, get_string('clickhide', 'calendar')).')');
 557         } else {
 558             $output .= html_writer::tag('td', '', array('style'=>'width:8px;'));
 559             $output .= html_writer::tag('td', html_writer::tag('strong', get_string('courseevents', 'calendar')).' '.get_string('hidden', 'calendar').' ('.html_writer::link($link, get_string('clickshow', 'calendar')).')');
 560         }
 561         $output .= html_writer::end_tag('tr');
 562
 563         if(isloggedin() && !isguestuser()) {
 564             $output .= html_writer::start_tag('tr');
 565             // Group events
 566             $link = new moodle_url(CALENDAR_URL.'set.php', array('var'=>'showgroups', 'from'=>'month', 'cal_d'=>$calendar->day, 'cal_m'=>$calendar->month, 'cal_y'=>$calendar->year));
 567             if($SESSION->cal_show_groups) {
 568                 $output .= html_writer::tag('td', '', array('class'=>'calendar_event_group', 'style'=>'width:8px;'));
 569                 $output .= html_writer::tag('td', html_writer::tag('strong', get_string('groupevents', 'calendar')).' '.get_string('shown', 'calendar').' ('.html_writer::link($link, get_string('clickhide', 'calendar')).')');
 570             } else {
 571                 $output .= html_writer::tag('td', '', array('style'=>'width:8px;'));
 572                 $output .= html_writer::tag('td', html_writer::tag('strong', get_string('groupevents', 'calendar')).' '.get_string('hidden', 'calendar').' ('.html_writer::link($link, get_string('clickshow', 'calendar')).')');
 573             }
 574             // User events
 575             $link = new moodle_url(CALENDAR_URL.'set.php', array('var'=>'showuser', 'from'=>'month', 'cal_d'=>$calendar->day, 'cal_m'=>$calendar->month, 'cal_y'=>$calendar->year));
 576             if($SESSION->cal_show_user) {
 577                 $output .= html_writer::tag('td', '', array('class'=>'calendar_event_user', 'style'=>'width:8px;'));
 578                 $output .= html_writer::tag('td', html_writer::tag('strong', get_string('userevents', 'calendar')).' '.get_string('shown', 'calendar').' ('.html_writer::link($link, get_string('clickhide', 'calendar')).')');
 579             } else {
 580                 $output .= html_writer::tag('td', '', array('style'=>'width:8px;'));
 581                 $output .= html_writer::tag('td', html_writer::tag('strong', get_string('userevents', 'calendar')).' '.get_string('hidden', 'calendar').' ('.html_writer::link($link, get_string('clickshow', 'calendar')).')');
 582             }
 583             $output .= html_writer::end_tag('tr');
 584         }
 585         $output .= html_writer::end_tag('table');
 586         $output .= html_writer::end_tag('div');
 587         return $output;
 588     }
 589
 590     /**
 591      * Displays upcoming events
 592      *
 593      * @param calendar_information $calendar
 594      * @param int $futuredays
 595      * @param int $maxevents
 596      * @return string
 597      */
 598     public function show_upcoming_events(calendar_information $calendar, $futuredays, $maxevents) {
 599         $events = calendar_get_upcoming($calendar->courses, $calendar->groups, $calendar->users, $futuredays, $maxevents);
 600
 601         $output  = html_writer::start_tag('div', array('class'=>'header'));
 602         if (!isguestuser() && isloggedin() && calendar_user_can_add_event()) {
 603             $output .= $this->add_event_button($calendar->courseid);
 604         }
 605         $output .= html_writer::tag('label', get_string('upcomingevents', 'calendar'), array('for'=>'cal_course_flt_jump'));
 606         $output .= $this->course_filter_selector(array('from'=>'upcoming'));
 607         $output .= html_writer::end_tag('div');
 608
 609         if ($events) {
 610             $output .= html_writer::start_tag('div', array('class'=>'eventlist'));
 611             foreach ($events as $event) {
 612                 // Convert to calendar_event object so that we transform description
 613                 // accordingly
 614                 $event = new calendar_event($event);
 615                 $event->calendarcourseid = $calendar->courseid;
 616                 $output .= $this->event($event);
 617             }
 618             $output .= html_writer::end_tag('div');
 619         } else {
 620             $output .= $this->output->heading(get_string('noupcomingevents', 'calendar'));
 621         }
 622
 623         return $output;
 624     }
 625
 626     /**
 627      * Displays a course filter selector
 628      *
 629      * @param array $getvars
 630      * @return string
 631      */
 632     protected function course_filter_selector(array $getvars = array(), $label=null) {
 633         global $USER, $SESSION, $CFG;
 634
 635         if (!isloggedin() or isguestuser()) {
 636             return '';
 637         }
 638
 639         if (has_capability('moodle/calendar:manageentries', get_context_instance(CONTEXT_SYSTEM)) && !empty($CFG->calendar_adminseesall)) {
 640             $courses = get_courses('all', 'c.shortname','c.id,c.shortname');
 641         } else {
 642             $courses = enrol_get_my_courses();
 643         }
 644
 645         unset($courses[SITEID]);
 646
 647         $courseoptions = array();
 648         $courseoptions[SITEID] = get_string('fulllistofcourses');
 649         foreach ($courses as $course) {
 650             $courseoptions[$course->id] = format_string($course->shortname);
 651         }
 652
 653         if (is_numeric($SESSION->cal_courses_shown)) {
 654             $selected = $SESSION->cal_courses_shown;
 655         } else {
 656             $selected = '';
 657         }
 658         $getvars['var'] = 'setcourse';
 659         $select = new single_select(new moodle_url(CALENDAR_URL.'set.php', $getvars), 'id', $courseoptions, $selected, null);
 660         $select->class = 'cal_courses_flt';
 661         if ($label !== null) {
 662             $select->label = $label;
 663         }
 664         return $this->output->render($select);
 665     }
 666 }