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1 <?php 2 3 /** 4 * Pre-transform that changes proprietary background attribute to CSS. 5 */ 6 class HTMLPurifier_AttrTransform_Background extends HTMLPurifier_AttrTransform 7 { 8 /** 9 * @param array $attr 10 * @param HTMLPurifier_Config $config 11 * @param HTMLPurifier_Context $context 12 * @return array 13 */ 14 public function transform($attr, $config, $context) 15 { 16 if (!isset($attr['background'])) { 17 return $attr; 18 } 19 20 $background = $this->confiscateAttr($attr, 'background'); 21 // some validation should happen here 22 23 $this->prependCSS($attr, "background-image:url($background);"); 24 return $attr; 25 } 26 } 27 28 // vim: et sw=4 sts=4
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