GlobAsset.php

<?php

/*
 * This file is part of the Assetic package, an OpenSky project.
 *
 * (c) 2010-2012 OpenSky Project Inc
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Assetic\Asset;

use Assetic\Util\PathUtils;
use Assetic\Filter\FilterInterface;

/**
 * A collection of assets loaded by glob.
 *
 * @author Kris Wallsmith <kris.wallsmith@gmail.com>
 */
class GlobAsset extends AssetCollection {
  private $globs;
  private $initialized;

  /**
   * Constructor.
   *
   * @param string|array $globs   A single glob path or array of paths
   * @param array        $filters An array of filters
   * @param string       $root    The root directory
   */
  public function __construct($globs, $filters = array(), $root = null, array $vars = array()) {
    $this->globs = (array) $globs;
    $this->initialized = false;
    parent::__construct(array(), $filters, $root, $vars);
  }
  public function all() {
    if (!$this->initialized) {
      $this
        ->initialize();
    }
    return parent::all();
  }
  public function load(FilterInterface $additionalFilter = null) {
    if (!$this->initialized) {
      $this
        ->initialize();
    }
    parent::load($additionalFilter);
  }
  public function dump(FilterInterface $additionalFilter = null) {
    if (!$this->initialized) {
      $this
        ->initialize();
    }
    return parent::dump($additionalFilter);
  }
  public function getLastModified() {
    if (!$this->initialized) {
      $this
        ->initialize();
    }
    return parent::getLastModified();
  }
  public function getIterator() {
    if (!$this->initialized) {
      $this
        ->initialize();
    }
    return parent::getIterator();
  }
  public function setValues(array $values) {
    parent::setValues($values);
    $this->initialized = false;
  }

  /**
   * Initializes the collection based on the glob(s) passed in.
   */
  private function initialize() {
    foreach ($this->globs as $glob) {
      $glob = PathUtils::resolvePath($glob, $this
        ->getVars(), $this
        ->getValues());
      if (false !== ($paths = glob($glob))) {
        foreach ($paths as $path) {
          $this
            ->add(new FileAsset($path, array(), $this
            ->getSourceRoot()));
        }
      }
    }
    $this->initialized = true;
  }

}