mirror of
https://github.com/ezyang/htmlpurifier.git
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23d3490d49
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@640 48356398-32a2-884e-a903-53898d9a118a
88 lines
2.7 KiB
PHP
88 lines
2.7 KiB
PHP
<?php
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require_once 'HTMLPurifier/AttrDef.php';
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/**
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* Validates shorthand CSS property list-style.
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* @note This currently does not support list-style-image, as that functionality
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* is not implemented yet elsewhere.
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*/
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class HTMLPurifier_AttrDef_ListStyle extends HTMLPurifier_AttrDef
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{
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/**
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* Local copy of component validators.
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* @note See HTMLPurifier_AttrDef_Font::$info for a similar impl.
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*/
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var $info;
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function HTMLPurifier_AttrDef_ListStyle($config) {
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$def = $config->getCSSDefinition();
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$this->info['list-style-type'] = $def->info['list-style-type'];
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$this->info['list-style-position'] = $def->info['list-style-position'];
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$this->info['list-style-image'] = $def->info['list-style-image'];
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}
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function validate($string, $config, &$context) {
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// regular pre-processing
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$string = $this->parseCDATA($string);
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if ($string === '') return false;
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$bits = explode(' ', strtolower($string)); // bits to process
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$caught_type = false;
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$caught_position = false;
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$caught_image = false;
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$caught_none = false; // as in keyword none, which is in all of them
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$ret = '';
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foreach ($bits as $bit) {
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if ($caught_none && ($caught_type || $caught_position || $caught_image)) break;
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if ($caught_type && $caught_position && $caught_image) break;
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if ($bit === '') continue;
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if ($bit === 'none') {
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if ($caught_none) continue;
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$caught_none = true;
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$ret .= 'none ';
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continue;
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}
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// if we add anymore, roll it into a loop
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$r = $this->info['list-style-type']->validate($bit, $config, $context);
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if ($r !== false) {
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if ($caught_type) continue;
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$caught_type = true;
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$ret .= $r . ' ';
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continue;
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}
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$r = $this->info['list-style-position']->validate($bit, $config, $context);
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if ($r !== false) {
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if ($caught_position) continue;
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$caught_position = true;
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$ret .= $r . ' ';
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continue;
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}
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$r = $this->info['list-style-image']->validate($bit, $config, $context);
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if ($r !== false) {
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if ($caught_image) continue;
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$caught_image = true;
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$ret .= $r . ' ';
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continue;
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}
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}
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$ret = rtrim($ret);
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return $ret ? $ret : false;
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}
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}
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?>
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