90 lines
2.6 KiB
PHP
90 lines
2.6 KiB
PHP
<?php
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require_once realpath(__DIR__ . '/../../libcalendaring/lib/libcalendaring_recurrence.php');
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/**
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* Recurrence computation class for the Calendar plugin
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*
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* Uitility class to compute instances of recurring events.
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*
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* @author Thomas Bruederli <bruederli@kolabsys.com>
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*
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* Copyright (C) 2012-2014, Kolab Systems AG <contact@kolabsys.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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class calendar_recurrence extends libcalendaring_recurrence
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{
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private $event;
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private $duration;
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/**
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* Default constructor
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*
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* @param calendar $cal The calendar plugin instance
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* @param array $event The event object to operate on
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*/
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function __construct($cal, $event)
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{
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parent::__construct($cal->lib);
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$this->event = $event;
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if (is_object($event['start']) && is_object($event['end'])) {
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$this->duration = $event['start']->diff($event['end']);
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}
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$event['start']->_dateonly = !empty($event['allday']);
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$this->init($event['recurrence'], $event['start']);
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}
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/**
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* Alias of libcalendaring_recurrence::next()
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*
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* @return mixed DateTime object or False if recurrence ended
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*/
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public function next_start()
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{
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return $this->next();
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}
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/**
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* Get the next recurring instance of this event
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*
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* @return mixed Array with event properties or False if recurrence ended
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*/
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public function next_instance()
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{
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if ($next_start = $this->next()) {
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$next = $this->event;
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$next['start'] = $next_start;
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if ($this->duration) {
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$next['end'] = clone $next_start;
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$next['end']->add($this->duration);
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}
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$next['recurrence_date'] = clone $next_start;
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$next['_instance'] = libcalendaring::recurrence_instance_identifier($next, $this->event['allday']);
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unset($next['_formatobj']);
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return $next;
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}
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return false;
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}
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}
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