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