ImageStyle::buildUri

public ImageStyle::buildUri($uri)

public function buildUri($uri) {
  $source_scheme = $scheme = $this->fileUriScheme($uri);
  $default_scheme = $this->fileDefaultScheme();

  if ($source_scheme) {
    $path = $this->fileUriTarget($uri);
    // The scheme of derivative image files only needs to be computed for
    // source files not stored in the default scheme.
    if ($source_scheme != $default_scheme) {
      $class = $this->getStreamWrapperManager()->getClass($source_scheme);
      $is_writable = $class::getType() & StreamWrapperInterface::WRITE;

      // Compute the derivative URI scheme. Derivatives created from writable
      // source stream wrappers will inherit the scheme. Derivatives created
      // from read-only stream wrappers will fall-back to the default scheme.
      $scheme = $is_writable ? $source_scheme : $default_scheme;
    }
  }
  else {
    $path = $uri;
    $source_scheme = $scheme = $default_scheme;
  }
  return "$scheme://styles/{$this->id()}/$source_scheme/{$this->addExtension($path)}";
}