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https://github.com/renbaoshuo/S2OJ.git
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35 lines
793 B
PHP
35 lines
793 B
PHP
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<?php
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class HTMLPurifier_AttrDef_CSS_AlphaValue extends HTMLPurifier_AttrDef_CSS_Number
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{
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public function __construct()
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{
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parent::__construct(false); // opacity is non-negative, but we will clamp it
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}
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/**
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* @param string $number
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* @param HTMLPurifier_Config $config
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* @param HTMLPurifier_Context $context
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* @return string
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*/
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public function validate($number, $config, $context)
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{
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$result = parent::validate($number, $config, $context);
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if ($result === false) {
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return $result;
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}
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$float = (float)$result;
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if ($float < 0.0) {
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$result = '0';
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}
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if ($float > 1.0) {
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$result = '1';
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}
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return $result;
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}
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}
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// vim: et sw=4 sts=4
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