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101 lines
3.6 KiB
PHP
101 lines
3.6 KiB
PHP
<?php
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namespace Sabre\VObject\Component;
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use Sabre\VObject;
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/**
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* VAlarm component
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*
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* This component contains some additional functionality specific for VALARMs.
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*
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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 VAlarm extends VObject\Component {
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/**
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* Returns a DateTime object when this alarm is going to trigger.
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*
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* This ignores repeated alarm, only the first trigger is returned.
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*
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* @return DateTime
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*/
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public function getEffectiveTriggerTime() {
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$trigger = $this->TRIGGER;
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if(!isset($trigger['VALUE']) || strtoupper($trigger['VALUE']) === 'DURATION') {
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$triggerDuration = VObject\DateTimeParser::parseDuration($this->TRIGGER);
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$related = (isset($trigger['RELATED']) && strtoupper($trigger['RELATED']) == 'END') ? 'END' : 'START';
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$parentComponent = $this->parent;
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if ($related === 'START') {
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$effectiveTrigger = clone $parentComponent->DTSTART->getDateTime();
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$effectiveTrigger->add($triggerDuration);
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} else {
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if ($parentComponent->name === 'VTODO') {
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$endProp = 'DUE';
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} elseif ($parentComponent->name === 'VEVENT') {
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$endProp = 'DTEND';
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} else {
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throw new \LogicException('time-range filters on VALARM components are only supported when they are a child of VTODO or VEVENT');
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}
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if (isset($parentComponent->$endProp)) {
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$effectiveTrigger = clone $parentComponent->$endProp->getDateTime();
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$effectiveTrigger->add($triggerDuration);
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} elseif (isset($parentComponent->DURATION)) {
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$effectiveTrigger = clone $parentComponent->DTSTART->getDateTime();
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$duration = VObject\DateTimeParser::parseDuration($parentComponent->DURATION);
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$effectiveTrigger->add($duration);
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$effectiveTrigger->add($triggerDuration);
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} else {
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$effectiveTrigger = clone $parentComponent->DTSTART->getDateTime();
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$effectiveTrigger->add($triggerDuration);
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}
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}
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} else {
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$effectiveTrigger = $trigger->getDateTime();
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}
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return $effectiveTrigger;
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}
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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 $end) {
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$effectiveTrigger = $this->getEffectiveTriggerTime();
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if (isset($this->DURATION)) {
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$duration = VObject\DateTimeParser::parseDuration($this->DURATION);
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$repeat = (string)$this->repeat;
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if (!$repeat) {
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$repeat = 1;
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}
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$period = new \DatePeriod($effectiveTrigger, $duration, (int)$repeat);
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foreach($period as $occurrence) {
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if ($start <= $occurrence && $end > $occurrence) {
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return true;
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}
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}
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return false;
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} else {
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return ($start <= $effectiveTrigger && $end > $effectiveTrigger);
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}
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}
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}
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