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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\Finder\Iterator;
  13  
  14  /**
  15   * DepthRangeFilterIterator limits the directory depth.
  16   *
  17   * @author Fabien Potencier <fabien@symfony.com>
  18   */
  19  class DepthRangeFilterIterator extends FilterIterator
  20  {
  21      private $minDepth = 0;
  22  
  23      /**
  24       * @param \RecursiveIteratorIterator $iterator The Iterator to filter
  25       * @param int                        $minDepth The min depth
  26       * @param int                        $maxDepth The max depth
  27       */
  28      public function __construct(\RecursiveIteratorIterator $iterator, $minDepth = 0, $maxDepth = \PHP_INT_MAX)
  29      {
  30          $this->minDepth = $minDepth;
  31          $iterator->setMaxDepth(\PHP_INT_MAX === $maxDepth ? -1 : $maxDepth);
  32  
  33          parent::__construct($iterator);
  34      }
  35  
  36      /**
  37       * Filters the iterator values.
  38       *
  39       * @return bool true if the value should be kept, false otherwise
  40       */
  41      public function accept()
  42      {
  43          return $this->getInnerIterator()->getDepth() >= $this->minDepth;
  44      }
  45  }