Runs assets through OptiPNG.
@link http://optipng.sourceforge.net/ @author Kris Wallsmith <kris.wallsmith@gmail.com>
Expanded class hierarchy of OptiPngFilter
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);
}
}
Name | Modifiers | Type | Description | Overrides |
---|---|---|---|---|
BaseProcessFilter:: |
private | property | ||
BaseProcessFilter:: |
protected | function | Creates a new process builder. | 1 |
BaseProcessFilter:: |
protected | function | ||
BaseProcessFilter:: |
public | function | Set the process timeout. | |
OptiPngFilter:: |
private | property | ||
OptiPngFilter:: |
private | property | ||
OptiPngFilter:: |
public | function |
Filters an asset just before it's dumped. Overrides FilterInterface:: |
|
OptiPngFilter:: |
public | function |
Filters an asset after it has been loaded. Overrides FilterInterface:: |
|
OptiPngFilter:: |
public | function | ||
OptiPngFilter:: |
public | function | Constructor. |