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sources/3rdparty/sabre/vobject/lib/Sabre/VObject/Component/VTodo.php 2.17 KB
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  <?php
  
  namespace Sabre\VObject\Component;
  
  use Sabre\VObject;
  
  /**
   * VTodo component
   *
   * This component contains some additional functionality specific for VTODOs.
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   *
   * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
   * @author Evert Pot (http://evertpot.com/)
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   * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
   */
  class VTodo extends VObject\Component {
  
      /**
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       * Returns true or false depending on if the event falls in the specified
       * 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.
       *
       * @param DateTime $start
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       * @param DateTime $end
       * @return bool
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       */
      public function isInTimeRange(\DateTime $start, \DateTime $end) {
  
          $dtstart = isset($this->DTSTART)?$this->DTSTART->getDateTime():null;
          $duration = isset($this->DURATION)?VObject\DateTimeParser::parseDuration($this->DURATION):null;
          $due = isset($this->DUE)?$this->DUE->getDateTime():null;
          $completed = isset($this->COMPLETED)?$this->COMPLETED->getDateTime():null;
          $created = isset($this->CREATED)?$this->CREATED->getDateTime():null;
  
          if ($dtstart) {
              if ($duration) {
                  $effectiveEnd = clone $dtstart;
                  $effectiveEnd->add($duration);
                  return $start <= $effectiveEnd && $end > $dtstart;
              } elseif ($due) {
                  return
                      ($start < $due || $start <= $dtstart) &&
                      ($end > $dtstart || $end >= $due);
              } else {
                  return $start <= $dtstart && $end > $dtstart;
              }
          }
          if ($due) {
              return ($start < $due && $end >= $due);
          }
          if ($completed && $created) {
              return
                  ($start <= $created || $start <= $completed) &&
                  ($end >= $created || $end >= $completed);
          }
          if ($completed) {
              return ($start <= $completed && $end >= $completed);
          }
          if ($created) {
              return ($end > $created);
          }
          return true;
  
      }
  
  }