public function PngoutFilter::filterDump

Filters an asset just before it's dumped.

Parameters

AssetInterface $asset An asset:

Overrides FilterInterface::filterDump

File

drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/PngoutFilter.php, line 88

Class

PngoutFilter

Runs assets through pngout.

Namespace

Code

public function filterDump(AssetInterface $asset) {
  $pb = new ProcessBuilder(array(
    $this->pngoutBin,
  ));
  if (null !== $this->color) {
    $pb
      ->add('-c' . $this->color);
  }
  if (null !== $this->filter) {
    $pb
      ->add('-f' . $this->filter);
  }
  if (null !== $this->strategy) {
    $pb
      ->add('-s' . $this->strategy);
  }
  if (null !== $this->blockSplitThreshold) {
    $pb
      ->add('-b' . $this->blockSplitThreshold);
  }
  $pb
    ->add($input = tempnam(sys_get_temp_dir(), 'assetic_pngout'));
  file_put_contents($input, $asset
    ->getContent());
  $output = tempnam(sys_get_temp_dir(), 'assetic_pngout');
  unlink($output);
  $pb
    ->add($output .= '.png');
  $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);
}