Proyectos de Subversion Moodle

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1 efrain 1 
<?php
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/**
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 * Pre-transform that changes deprecated hspace and vspace attributes to CSS
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 */
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class HTMLPurifier_AttrTransform_ImgSpace extends HTMLPurifier_AttrTransform
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{
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    /**
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     * @type string
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     */
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    protected $attr;
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    /**
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     * @type array
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     */
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    protected $css = array(
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        'hspace' => array('left', 'right'),
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        'vspace' => array('top', 'bottom')
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    );
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    /**
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     * @param string $attr
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     */
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    public function __construct($attr)
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    {
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        $this->attr = $attr;
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        if (!isset($this->css[$attr])) {
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            trigger_error(htmlspecialchars($attr) . ' is not valid space attribute');
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        }
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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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        $width = $this->confiscateAttr($attr, $this->attr);
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        // some validation could happen here
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        if (!isset($this->css[$this->attr])) {
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            return $attr;
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        }
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        $style = '';
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        foreach ($this->css[$this->attr] as $suffix) {
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            $property = "margin-$suffix";
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            $style .= "$property:{$width}px;";
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        }
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        $this->prependCSS($attr, $style);
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        return $attr;
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    }
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}
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// vim: et sw=4 sts=4