forked from friendica/friendica-addons
67 lines
2.2 KiB
PHP
67 lines
2.2 KiB
PHP
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<?php
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/**
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* VTodo component
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*
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* This component contains some additional functionality specific for VTODOs.
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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_VTodo 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 $end) {
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$dtstart = isset($this->DTSTART)?$this->DTSTART->getDateTime():null;
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$duration = isset($this->DURATION)?Sabre_VObject_DateTimeParser::parseDuration($this->DURATION):null;
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$due = isset($this->DUE)?$this->DUE->getDateTime():null;
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$completed = isset($this->COMPLETED)?$this->COMPLETED->getDateTime():null;
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$created = isset($this->CREATED)?$this->CREATED->getDateTime():null;
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if ($dtstart) {
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if ($duration) {
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$effectiveEnd = clone $dtstart;
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$effectiveEnd->add($duration);
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return $start <= $effectiveEnd && $end > $dtstart;
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} elseif ($due) {
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return
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($start < $due || $start <= $dtstart) &&
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($end > $dtstart || $end >= $due);
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} else {
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return $start <= $dtstart && $end > $dtstart;
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}
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}
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if ($due) {
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return ($start < $due && $end >= $due);
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}
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if ($completed && $created) {
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return
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($start <= $created || $start <= $completed) &&
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($end >= $created || $end >= $completed);
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}
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if ($completed) {
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return ($start <= $completed && $end >= $completed);
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}
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if ($created) {
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return ($end > $created);
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}
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return true;
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}
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}
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