class OptiPngFilter

Runs assets through OptiPNG.

@link http://optipng.sourceforge.net/ @author Kris Wallsmith <kris.wallsmith@gmail.com>

Hierarchy

Expanded class hierarchy of OptiPngFilter

File

drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/OptiPngFilter.php, line 23

Namespace

Assetic\Filter
View source
class OptiPngFilter extends BaseProcessFilter {
  private $optipngBin;
  private $level;

  /**
   * Constructor.
   *
   * @param string $optipngBin Path to the optipng binary
   */
  public function __construct($optipngBin = '/usr/bin/optipng') {
    $this->optipngBin = $optipngBin;
  }
  public function setLevel($level) {
    $this->level = $level;
  }
  public function filterLoad(AssetInterface $asset) {
  }
  public function filterDump(AssetInterface $asset) {
    $pb = $this
      ->createProcessBuilder(array(
      $this->optipngBin,
    ));
    if (null !== $this->level) {
      $pb
        ->add('-o')
        ->add($this->level);
    }
    $pb
      ->add('-out')
      ->add($output = tempnam(sys_get_temp_dir(), 'assetic_optipng'));
    unlink($output);
    $pb
      ->add($input = tempnam(sys_get_temp_dir(), 'assetic_optipng'));
    file_put_contents($input, $asset
      ->getContent());
    $proc = $pb
      ->getProcess();
    $code = $proc
      ->run();
    if (0 !== $code) {
      unlink($input);
      throw FilterException::fromProcess($proc)
        ->setInput($asset
        ->getContent());
    }
    $asset
      ->setContent(file_get_contents($output));
    unlink($input);
    unlink($output);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
BaseProcessFilter::$timeout private property
BaseProcessFilter::createProcessBuilder protected function Creates a new process builder. 1
BaseProcessFilter::mergeEnv protected function
BaseProcessFilter::setTimeout public function Set the process timeout.
OptiPngFilter::$level private property
OptiPngFilter::$optipngBin private property
OptiPngFilter::filterDump public function Filters an asset just before it's dumped. Overrides FilterInterface::filterDump
OptiPngFilter::filterLoad public function Filters an asset after it has been loaded. Overrides FilterInterface::filterLoad
OptiPngFilter::setLevel public function
OptiPngFilter::__construct public function Constructor.