PHP calendar_top_controls函数代码示例

 function get_content()
 {
     global $USER, $CFG, $SESSION, $COURSE;
     $cal_m = optional_param('cal_m', 0, PARAM_INT);
     $cal_y = optional_param('cal_y', 0, PARAM_INT);
     require_once $CFG->dirroot . '/calendar/lib.php';
     if ($this->content !== NULL) {
         return $this->content;
     }
     // Reset the session variables
     calendar_session_vars($COURSE);
     $this->content = new stdClass();
     $this->content->text = '';
     $this->content->footer = '';
     // [pj] To me it looks like this if would never be needed, but Penny added it
     // when committing the /my/ stuff. Reminder to discuss and learn what it's about.
     // It definitely needs SOME comment here!
     $courseshown = $COURSE->id;
     if ($courseshown == SITEID) {
         // Being displayed at site level. This will cause the filter to fall back to auto-detecting
         // the list of courses it will be grabbing events from.
         $filtercourse = NULL;
         $groupeventsfrom = NULL;
         $SESSION->cal_courses_shown = calendar_get_default_courses(true);
         calendar_set_referring_course(0);
     } else {
         // Forcibly filter events to include only those from the particular course we are in.
         $filtercourse = array($courseshown => $COURSE);
         $groupeventsfrom = array($courseshown => 1);
     }
     // We 'll need this later
     calendar_set_referring_course($courseshown);
     // MDL-9059, set to show this course when admins go into a course, then unset it.
     if ($COURSE->id != SITEID && !isset($SESSION->cal_courses_shown[$COURSE->id]) && has_capability('moodle/calendar:manageentries', get_context_instance(CONTEXT_SYSTEM))) {
         $courseset = true;
         $SESSION->cal_courses_shown[$COURSE->id] = $COURSE;
     }
     // Be VERY careful with the format for default courses arguments!
     // Correct formatting is [courseid] => 1 to be concise with moodlelib.php functions.
     calendar_set_filters($courses, $group, $user, $filtercourse, $groupeventsfrom, false);
     if ($courseshown == SITEID) {
         // For the front page
         $this->content->text .= calendar_overlib_html();
         $this->content->text .= calendar_top_controls('frontpage', array('id' => $courseshown, 'm' => $cal_m, 'y' => $cal_y));
         $this->content->text .= calendar_get_mini($courses, $group, $user, $cal_m, $cal_y);
         // No filters for now
     } else {
         // For any other course
         $this->content->text .= calendar_overlib_html();
         $this->content->text .= calendar_top_controls('course', array('id' => $courseshown, 'm' => $cal_m, 'y' => $cal_y));
         $this->content->text .= calendar_get_mini($courses, $group, $user, $cal_m, $cal_y);
         $this->content->text .= '<h3 class="eventskey">' . get_string('eventskey', 'calendar') . '</h3>';
         $this->content->text .= '<div class="filters">' . calendar_filter_controls('course', '', $COURSE) . '</div>';
     }
     // MDL-9059, unset this so that it doesn't stay in session
     if (!empty($courseset)) {
         unset($SESSION->cal_courses_shown[$COURSE->id]);
     }
     return $this->content;
 }

 function get_content()
 {
     global $USER, $CFG, $SESSION;
     $cal_m = optional_param('cal_m', 0, PARAM_INT);
     $cal_y = optional_param('cal_y', 0, PARAM_INT);
     require_once $CFG->dirroot . '/calendar/lib.php';
     if ($this->content !== NULL) {
         return $this->content;
     }
     $this->content = new stdClass();
     $this->content->text = '';
     $this->content->footer = '';
     // [pj] To me it looks like this if would never be needed, but Penny added it
     // when committing the /my/ stuff. Reminder to discuss and learn what it's about.
     // It definitely needs SOME comment here!
     $courseid = $this->page->course->id;
     $issite = $courseid == SITEID;
     if ($issite) {
         // Being displayed at site level. This will cause the filter to fall back to auto-detecting
         // the list of courses it will be grabbing events from.
         $filtercourse = calendar_get_default_courses();
     } else {
         // Forcibly filter events to include only those from the particular course we are in.
         $filtercourse = array($courseid => $this->page->course);
     }
     list($courses, $group, $user) = calendar_set_filters($filtercourse);
     if ($issite) {
         // For the front page
         $this->content->text .= calendar_top_controls('frontpage', array('id' => $courseid, 'm' => $cal_m, 'y' => $cal_y));
         $this->content->text .= calendar_get_mini($courses, $group, $user, $cal_m, $cal_y);
         // No filters for now
     } else {
         // For any other course
         $this->content->text .= calendar_top_controls('course', array('id' => $courseid, 'm' => $cal_m, 'y' => $cal_y));
         $this->content->text .= calendar_get_mini($courses, $group, $user, $cal_m, $cal_y);
         $this->content->text .= '<h3 class="eventskey">' . get_string('eventskey', 'calendar') . '</h3>';
         $this->content->text .= '<div class="filters">' . calendar_filter_controls($this->page->url) . '</div>';
     }
     return $this->content;
 }

 /**
  * Displays a month in detail
  *
  * @param calendar_information $calendar
  * @param moodle_url $returnurl the url to return to
  * @return string
  */
 public function show_month_detailed(calendar_information $calendar, moodle_url $returnurl = null)
 {
     global $CFG;
     if (empty($returnurl)) {
         $returnurl = $this->page->url;
     }
     // Get the calendar type we are using.
     $calendartype = \core_calendar\type_factory::get_calendar_instance();
     // Store the display settings.
     $display = new stdClass();
     $display->thismonth = false;
     // Get the specified date in the calendar type being used.
     $date = $calendartype->timestamp_to_date_array($calendar->time);
     $thisdate = $calendartype->timestamp_to_date_array(time());
     if ($date['mon'] == $thisdate['mon'] && $date['year'] == $thisdate['year']) {
         $display->thismonth = true;
         $date = $thisdate;
         $calendar->time = time();
     }
     // Get Gregorian date for the start of the month.
     $gregoriandate = $calendartype->convert_to_gregorian($date['year'], $date['mon'], 1);
     // Store the gregorian date values to be used later.
     list($gy, $gm, $gd, $gh, $gmin) = array($gregoriandate['year'], $gregoriandate['month'], $gregoriandate['day'], $gregoriandate['hour'], $gregoriandate['minute']);
     // Get the starting week day for this month.
     $startwday = dayofweek(1, $date['mon'], $date['year']);
     // Get the days in a week.
     $daynames = calendar_get_days();
     // Store the number of days in a week.
     $numberofdaysinweek = $calendartype->get_num_weekdays();
     $display->minwday = calendar_get_starting_weekday();
     $display->maxwday = $display->minwday + ($numberofdaysinweek - 1);
     $display->maxdays = calendar_days_in_month($date['mon'], $date['year']);
     // These are used for DB queries, so we want unixtime, so we need to use Gregorian dates.
     $display->tstart = make_timestamp($gy, $gm, $gd, $gh, $gmin, 0);
     $display->tend = $display->tstart + $display->maxdays * DAYSECS - 1;
     // Align the starting weekday to fall in our display range
     // This is simple, not foolproof.
     if ($startwday < $display->minwday) {
         $startwday += $numberofdaysinweek;
     }
     // Get events from database
     $events = calendar_get_events($display->tstart, $display->tend, $calendar->users, $calendar->groups, $calendar->courses);
     if (!empty($events)) {
         foreach ($events as $eventid => $event) {
             $event = new calendar_event($event);
             if (!empty($event->modulename)) {
                 $cm = get_coursemodule_from_instance($event->modulename, $event->instance);
                 if (!\core_availability\info_module::is_user_visible($cm, 0, false)) {
                     unset($events[$eventid]);
                 }
             }
         }
     }
     // Extract information: events vs. time
     calendar_events_by_day($events, $date['mon'], $date['year'], $eventsbyday, $durationbyday, $typesbyday, $calendar->courses);
     $output = html_writer::start_tag('div', array('class' => 'header'));
     $output .= $this->course_filter_selector($returnurl, get_string('detailedmonthviewfor', 'calendar'));
     if (calendar_user_can_add_event($calendar->course)) {
         $output .= $this->add_event_button($calendar->course->id, 0, 0, 0, $calendar->time);
     }
     $output .= html_writer::end_tag('div', array('class' => 'header'));
     // Controls
     $output .= html_writer::tag('div', calendar_top_controls('month', array('id' => $calendar->courseid, 'time' => $calendar->time)), array('class' => 'controls'));
     $table = new html_table();
     $table->attributes = array('class' => 'calendarmonth calendartable');
     $table->summary = get_string('calendarheading', 'calendar', userdate($calendar->time, get_string('strftimemonthyear')));
     $table->data = array();
     // Get the day names as the header.
     $header = array();
     for ($i = $display->minwday; $i <= $display->maxwday; ++$i) {
         $header[] = $daynames[$i % $numberofdaysinweek]['shortname'];
     }
     $table->head = $header;
     // For the table display. $week is the row; $dayweek is the column.
     $week = 1;
     $dayweek = $startwday;
     $row = new html_table_row(array());
     // Paddding (the first week may have blank days in the beginning)
     for ($i = $display->minwday; $i < $startwday; ++$i) {
         $cell = new html_table_cell('&nbsp;');
         $cell->attributes = array('class' => 'nottoday dayblank');
         $row->cells[] = $cell;
     }
     // Now display all the calendar
     $weekend = CALENDAR_DEFAULT_WEEKEND;
     if (isset($CFG->calendar_weekend)) {
         $weekend = intval($CFG->calendar_weekend);
     }
     $daytime = $display->tstart - DAYSECS;
     for ($day = 1; $day <= $display->maxdays; ++$day, ++$dayweek) {
         $daytime = $daytime + DAYSECS;
         if ($dayweek > $display->maxwday) {
             // We need to change week (table row)
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        $startwday += $numberofdaysinweek;
    }
    // Get the events matching our criteria. Don't forget to offset the timestamps for the user's TZ!
    $events = calendar_get_events($display->tstart, $display->tend, $users, $groups, $courses);
    // Set event course class for course events
    if (!empty($events)) {
        foreach ($events as $eventid => $event) {
            if (!empty($event->modulename)) {
                $cm = get_coursemodule_from_instance($event->modulename, $event->instance);
                if (!groups_course_module_visible($cm)) {
                    unset($events[$eventid]);
                }
            }
        }
    }
    // This is either a genius idea or an idiot idea: in order to not complicate things, we use this rule: if, after
    // possibly removing SITEID from $courses, there is only one course left, then clicking on a day in the month
    // will also set the $SESSION->cal_courses_shown variable to that one course. Otherwise, we 'd need to add extra
    // arguments to this function.
    $hrefparams = array();
    if (!empty($courses)) {
        $courses = array_diff($courses, array(SITEID));
        if (count($courses) == 1) {
            $hrefparams['course'] = reset($courses);
        }
    }
    // We want to have easy access by day, since the display is on a per-day basis.
    calendar_events_by_day($events, $m, $y, $eventsbyday, $durationbyday, $typesbyday, $courses);
    // Accessibility: added summary and <abbr> elements.
    $summary = get_string('calendarheading', 'calendar', userdate($display->tstart, get_string('strftimemonthyear')));
    $content .= '<table class="minicalendar calendartable" summary="' . $summary . '">';
    // Begin table.
    if ($placement !== false && $courseid !== false) {
        $content .= '<caption>' . calendar_top_controls($placement, array('id' => $courseid, 'time' => $time)) . '</caption>';
    }
    $content .= '<tr class="weekdays">';
    // Header row: day names
    // Print out the names of the weekdays.
    for ($i = $display->minwday; $i <= $display->maxwday; ++$i) {
        $pos = $i % $numberofdaysinweek;
        $content .= '<th scope="col"><abbr title="' . $daynames[$pos]['fullname'] . '">' . $daynames[$pos]['shortname'] . "</abbr></th>\n";
    }
    $content .= '</tr><tr>';
    // End of day names; prepare for day numbers
    // For the table display. $week is the row; $dayweek is the column.
    $dayweek = $startwday;
    // Paddding (the first week may have blank days in the beginning)
    for ($i = $display->minwday; $i < $startwday; ++$i) {
        $content .= '<td class="dayblank">&nbsp;</td>' . "\n";
    }
    $weekend = CALENDAR_DEFAULT_WEEKEND;
    if (isset($CFG->calendar_weekend)) {
        $weekend = intval($CFG->calendar_weekend);
    }
    // Now display all the calendar
    $daytime = $display->tstart - DAYSECS;
    for ($day = 1; $day <= $display->maxdays; ++$day, ++$dayweek) {
        $daytime += DAYSECS;
        if ($dayweek > $display->maxwday) {
            // We need to change week (table row)
            $content .= '</tr><tr>';
            $dayweek = $display->minwday;
        }
        // Reset vars.
        if ($weekend & 1 << $dayweek % $numberofdaysinweek) {
            // Weekend. This is true no matter what the exact range is.

echo '<div class="sideblock">';
echo '<div class="header"><h2>' . get_string('eventskey', 'calendar') . '</h2></div>';
echo '<div class="filters">';
echo calendar_filter_controls('event', 'action=' . $action . '&amp;type=' . $eventtype . '&amp;id=' . $eventid);
echo '</div>';
echo '</div>';
echo '<div class="sideblock">';
echo '<div class="header"><h2>' . get_string('monthlyview', 'calendar') . '</h2></div>';
echo '<div class="minicalendarblock minicalendartop">';
echo calendar_top_controls('display', array('id' => $urlcourse, 'm' => $prevmon, 'y' => $prevyr));
echo calendar_get_mini($courses, $groups, $users, $prevmon, $prevyr);
echo '</div><div class="minicalendarblock">';
echo calendar_top_controls('display', array('id' => $urlcourse, 'm' => $mon, 'y' => $yr));
echo calendar_get_mini($courses, $groups, $users, $mon, $yr);
echo '</div><div class="minicalendarblock">';
echo calendar_top_controls('display', array('id' => $urlcourse, 'm' => $nextmon, 'y' => $nextyr));
echo calendar_get_mini($courses, $groups, $users, $nextmon, $nextyr);
echo '</div>';
echo '</div>';
echo '</td>';
echo '</tr></table>';
print_footer();
function validate_form(&$form, &$err)
{
    $form->name = trim($form->name);
    $form->description = trim($form->description);
    if (empty($form->name)) {
        $err['name'] = get_string('errornoeventname', 'calendar');
    }
    /* Allow events without a description
        if(empty($form->description)) {

function calendar_show_month_detailed($m, $y, $courses, $groups, $users, $courseid)
{
    global $CFG, $SESSION, $USER, $CALENDARDAYS;
    global $day, $mon, $yr;
    $getvars = 'from=month&cal_d=' . $day . '&cal_m=' . $mon . '&cal_y=' . $yr;
    // For filtering
    $display =& new stdClass();
    $display->minwday = get_user_preferences('calendar_startwday', CALENDAR_STARTING_WEEKDAY);
    $display->maxwday = $display->minwday + 6;
    if (!empty($m) && !empty($y)) {
        $thisdate = usergetdate(time());
        // Time and day at the user's location
        if ($m == $thisdate['mon'] && $y == $thisdate['year']) {
            // Navigated to this month
            $date = $thisdate;
            $display->thismonth = true;
        } else {
            // Navigated to other month, let's do a nice trick and save us a lot of work...
            if (!checkdate($m, 1, $y)) {
                $date = array('mday' => 1, 'mon' => $thisdate['mon'], 'year' => $thisdate['year']);
                $display->thismonth = true;
            } else {
                $date = array('mday' => 1, 'mon' => $m, 'year' => $y);
                $display->thismonth = false;
            }
        }
    } else {
        $date = usergetdate(time());
        $display->thismonth = true;
    }
    // Fill in the variables we 're going to use, nice and tidy
    list($d, $m, $y) = array($date['mday'], $date['mon'], $date['year']);
    // This is what we want to display
    $display->maxdays = calendar_days_in_month($m, $y);
    $startwday = 0;
    if (get_user_timezone_offset() < 99) {
        // We 'll keep these values as GMT here, and offset them when the time comes to query the db
        $display->tstart = gmmktime(0, 0, 0, $m, 1, $y);
        // This is GMT
        $display->tend = gmmktime(23, 59, 59, $m, $display->maxdays, $y);
        // GMT
        $startwday = gmdate('w', $display->tstart);
        // $display->tstart is already GMT, so don't use date(): messes with server's TZ
    } else {
        // no timezone info specified
        $display->tstart = mktime(0, 0, 0, $m, 1, $y);
        $display->tend = mktime(23, 59, 59, $m, $display->maxdays, $y);
        $startwday = date('w', $display->tstart);
        // $display->tstart not necessarily GMT, so use date()
    }
    // Align the starting weekday to fall in our display range
    if ($startwday < $display->minwday) {
        $startwday += 7;
    }
    // Get events from database
    $events = calendar_get_events(usertime($display->tstart), usertime($display->tend), $users, $groups, $courses);
    if (!empty($events)) {
        foreach ($events as $eventid => $event) {
            if (!empty($event->modulename)) {
                $cm = get_coursemodule_from_instance($event->modulename, $event->instance);
                if (!groups_course_module_visible($cm)) {
                    unset($events[$eventid]);
                }
            }
        }
    }
    // Extract information: events vs. time
    calendar_events_by_day($events, $m, $y, $eventsbyday, $durationbyday, $typesbyday, $courses);
    $text = '';
    if (!isguest() && !empty($USER->id) && calendar_user_can_add_event()) {
        $text .= '<div class="buttons"><form action="' . CALENDAR_URL . 'event.php" method="get">';
        $text .= '<div>';
        $text .= '<input type="hidden" name="action" value="new" />';
        $text .= '<input type="hidden" name="course" value="' . $courseid . '" />';
        $text .= '<input type="hidden" name="cal_m" value="' . $m . '" />';
        $text .= '<input type="hidden" name="cal_y" value="' . $y . '" />';
        $text .= '<input type="submit" value="' . get_string('newevent', 'calendar') . '" />';
        $text .= '</div></form></div>';
    }
    $text .= '<label for="cal_course_flt_jump">' . get_string('detailedmonthview', 'calendar') . ':</label>' . calendar_course_filter_selector($getvars);
    echo '<div class="header">' . $text . '</div>';
    echo '<div class="controls">';
    echo calendar_top_controls('month', array('id' => $courseid, 'm' => $m, 'y' => $y));
    echo '</div>';
    // Start calendar display
    echo '<table class="calendarmonth"><tr class="weekdays">';
    // Begin table. First row: day names
    // Print out the names of the weekdays
    for ($i = $display->minwday; $i <= $display->maxwday; ++$i) {
        // This uses the % operator to get the correct weekday no matter what shift we have
        // applied to the $display->minwday : $display->maxwday range from the default 0 : 6
        echo '<th scope="col">' . get_string($CALENDARDAYS[$i % 7], 'calendar') . '</th>';
    }
    echo '</tr><tr>';
    // End of day names; prepare for day numbers
    // For the table display. $week is the row; $dayweek is the column.
    $week = 1;
    $dayweek = $startwday;
    // Paddding (the first week may have blank days in the beginning)
    for ($i = $display->minwday; $i < $startwday; ++$i) {
//.........这里部分代码省略.........

 /**
  * Displays a month in detail
  *
  * @param calendar_information $calendar
  * @return string
  */
 public function show_month_detailed(calendar_information $calendar, moodle_url $returnurl = null)
 {
     global $CFG;
     if (empty($returnurl)) {
         $returnurl = $this->page->url;
     }
     $date = usergetdate(time());
     $display = new stdClass();
     $display->minwday = get_user_preferences('calendar_startwday', calendar_get_starting_weekday());
     $display->maxwday = $display->minwday + 6;
     $display->thismonth = $date['mon'] == $calendar->month;
     $display->maxdays = calendar_days_in_month($calendar->month, $calendar->year);
     $startwday = 0;
     if (get_user_timezone_offset() < 99) {
         // We 'll keep these values as GMT here, and offset them when the time comes to query the db
         $display->tstart = gmmktime(0, 0, 0, $calendar->month, 1, $calendar->year);
         // This is GMT
         $display->tend = gmmktime(23, 59, 59, $calendar->month, $display->maxdays, $calendar->year);
         // GMT
         $startwday = gmdate('w', $display->tstart);
         // $display->tstart is already GMT, so don't use date(): messes with server's TZ
     } else {
         // no timezone info specified
         $display->tstart = mktime(0, 0, 0, $calendar->month, 1, $calendar->year);
         $display->tend = mktime(23, 59, 59, $calendar->month, $display->maxdays, $calendar->year);
         $startwday = date('w', $display->tstart);
         // $display->tstart not necessarily GMT, so use date()
     }
     // Align the starting weekday to fall in our display range
     if ($startwday < $display->minwday) {
         $startwday += 7;
     }
     // Get events from database
     $events = calendar_get_events(usertime($display->tstart), usertime($display->tend), $calendar->users, $calendar->groups, $calendar->courses);
     if (!empty($events)) {
         foreach ($events as $eventid => $event) {
             $event = new calendar_event($event);
             if (!empty($event->modulename)) {
                 $cm = get_coursemodule_from_instance($event->modulename, $event->instance);
                 if (!groups_course_module_visible($cm)) {
                     unset($events[$eventid]);
                 }
             }
         }
     }
     // Extract information: events vs. time
     calendar_events_by_day($events, $calendar->month, $calendar->year, $eventsbyday, $durationbyday, $typesbyday, $calendar->courses);
     $output = html_writer::start_tag('div', array('class' => 'header'));
     if (calendar_user_can_add_event($calendar->course)) {
         $output .= $this->add_event_button($calendar->course->id, null, $calendar->month, $calendar->year);
     }
     $output .= get_string('detailedmonthview', 'calendar') . ': ' . $this->course_filter_selector($returnurl);
     $output .= html_writer::end_tag('div', array('class' => 'header'));
     // Controls
     $output .= html_writer::tag('div', calendar_top_controls('month', array('id' => $calendar->courseid, 'm' => $calendar->month, 'y' => $calendar->year)), array('class' => 'controls'));
     $days = calendar_get_days();
     $table = new html_table();
     $table->attributes = array('class' => 'calendarmonth calendartable');
     $table->data = array();
     $header = new html_table_row();
     $header->attributes = array('class' => 'weekdays');
     $header->cells = array();
     for ($i = $display->minwday; $i <= $display->maxwday; ++$i) {
         // This uses the % operator to get the correct weekday no matter what shift we have
         // applied to the $display->minwday : $display->maxwday range from the default 0 : 6
         $cell = new html_table_cell(get_string($days[$i % 7], 'calendar'));
         $cell->header = true;
         $header->cells[] = $cell;
     }
     // For the table display. $week is the row; $dayweek is the column.
     $week = 1;
     $dayweek = $startwday;
     // Create an array of all the week days.
     $wdays = array(0 => '<strong>' . get_string('sunday', 'calendar') . '</strong>', 1 => '<strong>' . get_string('monday', 'calendar') . '</strong>', 2 => '<strong>' . get_string('tuesday', 'calendar') . '</strong>', 3 => '<strong>' . get_string('wednesday', 'calendar') . '</strong>', 4 => '<strong>' . get_string('thursday', 'calendar') . '</strong>', 5 => '<strong>' . get_string('friday', 'calendar') . '</strong>', 6 => '<strong>' . get_string('saturday', 'calendar') . '</strong>');
     // Loop only if the day offset is greater than 0.
     // This loop involves shifting the days around until the desired start day
     // is at the start of the array.
     $daycount = 0;
     while ($display->minwday > $daycount++) {
         $wdays_end = array_shift($wdays);
         array_push($wdays, $wdays_end);
     }
     // Now we set the (modified) array to the table header to be displayed.
     $table->head = $wdays;
     $row = new html_table_row(array());
     // Paddding (the first week may have blank days in the beginning)
     for ($i = $display->minwday; $i < $startwday; ++$i) {
         $cell = new html_table_cell('&nbsp;');
         $cell->attributes = array('class' => 'nottoday');
         $row->cells[] = $cell;
     }
     // Now display all the calendar
     $weekend = CALENDAR_DEFAULT_WEEKEND;
     if (isset($CFG->calendar_weekend)) {
//.........这里部分代码省略.........

//.........这里部分代码省略.........
    $events = calendar_get_events(usertime($display->tstart) - dst_offset_on($display->tstart), usertime($display->tend) - dst_offset_on($display->tend), $users, $groups, $courses);
    // Set event course class for course events
    if (!empty($events)) {
        foreach ($events as $eventid => $event) {
            if (!empty($event->modulename)) {
                $cm = get_coursemodule_from_instance($event->modulename, $event->instance);
                if (!groups_course_module_visible($cm)) {
                    unset($events[$eventid]);
                }
            }
        }
    }
    // This is either a genius idea or an idiot idea: in order to not complicate things, we use this rule: if, after
    // possibly removing SITEID from $courses, there is only one course left, then clicking on a day in the month
    // will also set the $SESSION->cal_courses_shown variable to that one course. Otherwise, we 'd need to add extra
    // arguments to this function.
    $hrefparams = array();
    if (!empty($courses)) {
        $courses = array_diff($courses, array(SITEID));
        if (count($courses) == 1) {
            $hrefparams['course'] = reset($courses);
        }
    }
    // We want to have easy access by day, since the display is on a per-day basis.
    // Arguments passed by reference.
    //calendar_events_by_day($events, $display->tstart, $eventsbyday, $durationbyday, $typesbyday);
    calendar_events_by_day($events, $m, $y, $eventsbyday, $durationbyday, $typesbyday, $courses);
    //Accessibility: added summary and <abbr> elements.
    $days_title = calendar_get_days();
    $summary = get_string('calendarheading', 'calendar', userdate(make_timestamp($y, $m), get_string('strftimemonthyear')));
    $content .= '<table class="minicalendar calendartable" summary="' . $summary . '">';
    // Begin table
    if ($placement !== false && $courseid !== false) {
        $content .= '<caption>' . calendar_top_controls($placement, array('id' => $courseid, 'm' => $m, 'y' => $y)) . '</caption>';
    }
    $content .= '<tr class="weekdays">';
    // Header row: day names
    // Print out the names of the weekdays
    $days = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat');
    for ($i = $display->minwday; $i <= $display->maxwday; ++$i) {
        // This uses the % operator to get the correct weekday no matter what shift we have
        // applied to the $display->minwday : $display->maxwday range from the default 0 : 6
        $content .= '<th scope="col"><abbr title="' . get_string($days_title[$i % 7], 'calendar') . '">' . get_string($days[$i % 7], 'calendar') . "</abbr></th>\n";
    }
    $content .= '</tr><tr>';
    // End of day names; prepare for day numbers
    // For the table display. $week is the row; $dayweek is the column.
    $dayweek = $startwday;
    // Paddding (the first week may have blank days in the beginning)
    for ($i = $display->minwday; $i < $startwday; ++$i) {
        $content .= '<td class="dayblank">&nbsp;</td>' . "\n";
    }
    $weekend = CALENDAR_DEFAULT_WEEKEND;
    if (isset($CFG->calendar_weekend)) {
        $weekend = intval($CFG->calendar_weekend);
    }
    // Now display all the calendar
    for ($day = 1; $day <= $display->maxdays; ++$day, ++$dayweek) {
        if ($dayweek > $display->maxwday) {
            // We need to change week (table row)
            $content .= '</tr><tr>';
            $dayweek = $display->minwday;
        }
        // Reset vars
        $cell = '';
        if ($weekend & 1 << $dayweek % 7) {