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1 efrain 1 
<?php
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/**
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 * Pre-transform that changes converts a boolean attribute to fixed CSS
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 */
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class HTMLPurifier_AttrTransform_BoolToCSS extends HTMLPurifier_AttrTransform
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{
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    /**
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     * Name of boolean attribute that is trigger.
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     * @type string
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     */
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    protected $attr;
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    /**
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     * CSS declarations to add to style, needs trailing semicolon.
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     * @type string
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     */
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    protected $css;
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    /**
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     * @param string $attr attribute name to convert from
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     * @param string $css CSS declarations to add to style (needs semicolon)
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     */
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    public function __construct($attr, $css)
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    {
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        $this->attr = $attr;
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        $this->css = $css;
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    }
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    /**
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     * @param array $attr
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     * @param HTMLPurifier_Config $config
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     * @param HTMLPurifier_Context $context
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     * @return array
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     */
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    public function transform($attr, $config, $context)
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    {
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        if (!isset($attr[$this->attr])) {
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            return $attr;
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        }
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        unset($attr[$this->attr]);
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        $this->prependCSS($attr, $this->css);
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        return $attr;
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    }
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}
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// vim: et sw=4 sts=4