Proyectos de Subversion Moodle

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<?php
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/**
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 * Injector that removes spans with no attributes
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 */
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class HTMLPurifier_Injector_RemoveSpansWithoutAttributes extends HTMLPurifier_Injector
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{
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    /**
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     * @type string
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     */
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    public $name = 'RemoveSpansWithoutAttributes';
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    /**
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     * @type array
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     */
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    public $needed = array('span');
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    /**
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     * @type HTMLPurifier_AttrValidator
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     */
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    private $attrValidator;
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    /**
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     * Used by AttrValidator.
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     * @type HTMLPurifier_Config
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     */
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    private $config;
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    /**
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     * @type HTMLPurifier_Context
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     */
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    private $context;
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    /**
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     * @type SplObjectStorage
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     */
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    private $markForDeletion;
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    public function __construct()
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    {
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        $this->markForDeletion = new SplObjectStorage();
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    }
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    public function prepare($config, $context)
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    {
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        $this->attrValidator = new HTMLPurifier_AttrValidator();
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        $this->config = $config;
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        $this->context = $context;
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        return parent::prepare($config, $context);
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    }
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    /**
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     * @param HTMLPurifier_Token $token
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     */
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    public function handleElement(&$token)
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    {
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        if ($token->name !== 'span' || !$token instanceof HTMLPurifier_Token_Start) {
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            return;
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        }
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        // We need to validate the attributes now since this doesn't normally
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        // happen until after MakeWellFormed. If all the attributes are removed
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        // the span needs to be removed too.
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        $this->attrValidator->validateToken($token, $this->config, $this->context);
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        $token->armor['ValidateAttributes'] = true;
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        if (!empty($token->attr)) {
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            return;
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        }
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        $nesting = 0;
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        while ($this->forwardUntilEndToken($i, $current, $nesting)) {
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        }
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        if ($current instanceof HTMLPurifier_Token_End && $current->name === 'span') {
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            // Mark closing span tag for deletion
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            $this->markForDeletion->attach($current);
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            // Delete open span tag
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            $token = false;
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        }
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    }
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    /**
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     * @param HTMLPurifier_Token $token
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     */
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    public function handleEnd(&$token)
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    {
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        if ($this->markForDeletion->contains($token)) {
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            $this->markForDeletion->detach($token);
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            $token = false;
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        }
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    }
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}
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// vim: et sw=4 sts=4