CSSEmbed filter
@link https://github.com/nzakas/cssembed @author Maxime Thirouin <maxime.thirouin@gmail.com>
Expanded class hierarchy of CssEmbedFilter
class CssEmbedFilter implements FilterInterface {
private $jarPath;
private $javaPath;
private $charset;
private $mhtml;
// Enable MHTML mode.
private $mhtmlRoot;
// Use <root> as the MHTML root for the file.
private $root;
// Prepends <root> to all relative URLs.
private $skipMissing;
// Don't throw an error for missing image files.
private $maxUriLength;
// Maximum length for a data URI. Defaults to 32768.
private $maxImageSize;
// Maximum image size (in bytes) to convert.
public function __construct($jarPath, $javaPath = '/usr/bin/java') {
$this->jarPath = $jarPath;
$this->javaPath = $javaPath;
}
public function setCharset($charset) {
$this->charset = $charset;
}
public function setMhtml($mhtml) {
$this->mhtml = $mhtml;
}
public function setMhtmlRoot($mhtmlRoot) {
$this->mhtmlRoot = $mhtmlRoot;
}
public function setRoot($root) {
$this->root = $root;
}
public function setSkipMissing($skipMissing) {
$this->skipMissing = $skipMissing;
}
public function setMaxUriLength($maxUriLength) {
$this->maxUriLength = $maxUriLength;
}
public function setMaxImageSize($maxImageSize) {
$this->maxImageSize = $maxImageSize;
}
public function filterLoad(AssetInterface $asset) {
}
public function filterDump(AssetInterface $asset) {
$pb = new ProcessBuilder(array(
$this->javaPath,
'-jar',
$this->jarPath,
));
if (null !== $this->charset) {
$pb
->add('--charset')
->add($this->charset);
}
if ($this->mhtml) {
$pb
->add('--mhtml');
}
if (null !== $this->mhtmlRoot) {
$pb
->add('--mhtmlroot')
->add($this->mhtmlRoot);
}
// automatically define root if not already defined
if (null === $this->root) {
$root = $asset
->getSourceRoot();
$path = $asset
->getSourcePath();
if ($root && $path) {
$pb
->add('--root')
->add(dirname($root . '/' . $path));
}
}
else {
$pb
->add('--root')
->add($this->root);
}
if ($this->skipMissing) {
$pb
->add('--skip-missing');
}
if (null !== $this->maxUriLength) {
$pb
->add('--max-uri-length')
->add($this->maxUriLength);
}
if (null !== $this->maxImageSize) {
$pb
->add('--max-image-size')
->add($this->maxImageSize);
}
// input
$pb
->add($input = tempnam(sys_get_temp_dir(), 'assetic_cssembed'));
file_put_contents($input, $asset
->getContent());
$proc = $pb
->getProcess();
$code = $proc
->run();
unlink($input);
if (0 < $code) {
throw FilterException::fromProcess($proc)
->setInput($asset
->getContent());
}
$asset
->setContent($proc
->getOutput());
}
}