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| <?php | |
| namespace AssetsBundle\AssetFile\AssetFileFilter\ImageAssetFileFilter; | |
| class GifImageAssetFileFilter extends \AssetsBundle\AssetFile\AssetFileFilter\ImageAssetFileFilter\AbstractImageAssetFileFilter { | |
| /** | |
| * @var string | |
| */ | |
| protected $assetFileFilterName = 'Gif'; | |
| /** | |
| * @param \AssetsBundle\AssetFile\AssetFile $oAssetFile | |
| * @return boolean | |
| */ | |
| protected function assetFileShouldBeOptimize(\AssetsBundle\AssetFile\AssetFile $oAssetFile) { | |
| //Check if image is not an animated Gif | |
| return parent::assetFileShouldBeOptimize($oAssetFile) && !preg_match('#(\x00\x21\xF9\x04.{4}\x00\x2C.*){2,}#s', $oAssetFile->getAssetFileContents()); | |
| } | |
| /** | |
| * @param ressource $oImage | |
| * @return string | |
| * @throws \InvalidArgumentException | |
| */ | |
| public function optimizeImage($oImage) { | |
| if (is_resource($oImage)) { | |
| ob_start(); | |
| imagegif($oImage); | |
| return ob_get_clean(); | |
| } | |
| throw new \InvalidArgumentException('Image expects a ressource, "' . gettype($oImage) . '" given'); | |
| } | |
| } |