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<?php
/**
* Pre-transform that changes proprietary background attribute to CSS.
*/
class HTMLPurifier_AttrTransform_Background extends HTMLPurifier_AttrTransform {
public function transform($attr, $config, $context) {
if (!isset($attr['background'])) return $attr;
$background = $this->confiscateAttr($attr, 'background');
// some validation should happen here
$this->prependCSS($attr, "background-image:url($background);");
return $attr;
}
}
// vim: et sw=4 sts=4
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