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1 <?php
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2
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3 namespace Sabre\VObject\Component;
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4
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5 use Sabre\VObject;
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6
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7 /**
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8 * VTodo component
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9 *
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10 * This component contains some additional functionality specific for VTODOs.
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11 *
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12 * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
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13 * @author Evert Pot (http://evertpot.com/)
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14 * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
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15 */
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16 class VTodo extends VObject\Component {
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17
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18 /**
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19 * Returns true or false depending on if the event falls in the specified
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20 * time-range. This is used for filtering purposes.
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21 *
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22 * The rules used to determine if an event falls within the specified
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23 * time-range is based on the CalDAV specification.
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24 *
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25 * @param DateTime $start
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26 * @param DateTime $end
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27 * @return bool
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28 */
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29 public function isInTimeRange(\DateTime $start, \DateTime $end) {
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30
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31 $dtstart = isset($this->DTSTART)?$this->DTSTART->getDateTime():null;
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32 $duration = isset($this->DURATION)?VObject\DateTimeParser::parseDuration($this->DURATION):null;
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33 $due = isset($this->DUE)?$this->DUE->getDateTime():null;
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34 $completed = isset($this->COMPLETED)?$this->COMPLETED->getDateTime():null;
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35 $created = isset($this->CREATED)?$this->CREATED->getDateTime():null;
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36
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37 if ($dtstart) {
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38 if ($duration) {
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39 $effectiveEnd = clone $dtstart;
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40 $effectiveEnd->add($duration);
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41 return $start <= $effectiveEnd && $end > $dtstart;
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42 } elseif ($due) {
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43 return
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44 ($start < $due || $start <= $dtstart) &&
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45 ($end > $dtstart || $end >= $due);
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46 } else {
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47 return $start <= $dtstart && $end > $dtstart;
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48 }
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49 }
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50 if ($due) {
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51 return ($start < $due && $end >= $due);
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52 }
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53 if ($completed && $created) {
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54 return
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55 ($start <= $created || $start <= $completed) &&
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56 ($end >= $created || $end >= $completed);
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57 }
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58 if ($completed) {
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59 return ($start <= $completed && $end >= $completed);
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60 }
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61 if ($created) {
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62 return ($end > $created);
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63 }
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64 return true;
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65
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66 }
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67
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68 }
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