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

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<?php
namespace Sabre\VObject\Component;
use Sabre\VObject;
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/**
* VEvent component
*
* This component contains some additional functionality specific for VEVENT's.
*
* @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 VEvent extends VObject\Component {
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/**
* 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
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* @return bool
*/
public function isInTimeRange(\DateTime $start, \DateTime $end) {
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if ($this->RRULE) {
$it = new VObject\RecurrenceIterator($this);
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$it->fastForward($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)) {
// The DTEND property is considered non inclusive. So for a 3 day
// event in july, dtstart and dtend would have to be July 1st and
// July 4th respectively.
//
// See:
// http://tools.ietf.org/html/rfc5545#page-54
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$effectiveEnd = $this->DTEND->getDateTime();
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} elseif (isset($this->DURATION)) {
$effectiveEnd = clone $effectiveStart;
$effectiveEnd->add( VObject\DateTimeParser::parseDuration($this->DURATION) );
} elseif ($this->DTSTART->getDateType() == VObject\Property\DateTime::DATE) {
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$effectiveEnd = clone $effectiveStart;
$effectiveEnd->modify('+1 day');
} else {
$effectiveEnd = clone $effectiveStart;
}
return (
($start <= $effectiveEnd) && ($end > $effectiveStart)
);
}
}