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/*
* This file is part of LibCSS
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
*
* Copyright 2018 Michael Drake <tlsa@netsurf-browser.org>
*/
#ifndef css_select_mq_h_
#define css_select_mq_h_
/**
* Test whether the rule applies for current media.
*
* \param rule Rule to test
* \meaid media Current media type(s)
* \return true iff chain's rule applies for media
*/
static inline bool mq_rule_good_for_media(const css_rule *rule, uint64_t media)
{
bool applies = true;
const css_rule *ancestor = rule;
while (ancestor != NULL) {
const css_rule_media *m = (const css_rule_media *) ancestor;
if (ancestor->type == CSS_RULE_MEDIA &&
(m->media & media) == 0) {
applies = false;
break;
}
if (ancestor->ptype != CSS_RULE_PARENT_STYLESHEET) {
ancestor = ancestor->parent;
} else {
ancestor = NULL;
}
}
return applies;
}
#endif
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