friendica-addons/dav/SabreDAV/lib/Sabre/VObject/Component/VEvent.php

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2012-06-03 20:19:28 +02:00
<?php
/**
* VEvent component
*
* This component contains some additional functionality specific for VEVENT's.
*
* @package Sabre
* @subpackage VObject
* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
class Sabre_VObject_Component_VEvent extends Sabre_VObject_Component {
/**
* Returns true or false depending on if the event falls in the specified
* time-range. This is used for filtering purposes.
*
* The rules used to determine if an event falls within the specified
* time-range is based on the CalDAV specification.
*
* @param DateTime $start
* @param DateTime $end
* @return bool
*/
public function isInTimeRange(DateTime $start, DateTime $end) {
if ($this->RRULE) {
$it = new Sabre_VObject_RecurrenceIterator($this);
$it->fastForward($start);
// We fast-forwarded to a spot where the end-time of the
// recurrence instance exceeded the start of the requested
// time-range.
//
// If the starttime of the recurrence did not exceed the
// end of the time range as well, we have a match.
return ($it->getDTStart() < $end && $it->getDTEnd() > $start);
}
$effectiveStart = $this->DTSTART->getDateTime();
if (isset($this->DTEND)) {
$effectiveEnd = $this->DTEND->getDateTime();
// If this was an all-day event, we should just increase the
// end-date by 1. Otherwise the event will last until the second
// the date changed, by increasing this by 1 day the event lasts
// all of the last day as well.
if ($this->DTSTART->getDateType() == Sabre_VObject_Property_DateTime::DATE) {
$effectiveEnd->modify('+1 day');
}
} elseif (isset($this->DURATION)) {
$effectiveEnd = clone $effectiveStart;
$effectiveEnd->add( Sabre_VObject_DateTimeParser::parseDuration($this->DURATION) );
} elseif ($this->DTSTART->getDateType() == Sabre_VObject_Property_DateTime::DATE) {
$effectiveEnd = clone $effectiveStart;
$effectiveEnd->modify('+1 day');
} else {
$effectiveEnd = clone $effectiveStart;
}
return (
($start <= $effectiveEnd) && ($end > $effectiveStart)
);
}
}