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Support @supports (fixes #14786)

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This commit is contained in:
Manish Goregaokar 2016-12-29 19:09:53 -08:00
parent cdf14730ff
commit 1b0842e228
5 changed files with 296 additions and 7 deletions
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5
components/style/stylist.rs
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@ -408,14 +408,15 @@ impl Stylist {
fn mq_eval_changed(rules: &[CssRule], before: &Device, after: &Device) -> bool {
for rule in rules {
if rule.with_nested_rules_and_mq(|rules, mq| {
let changed = rule.with_nested_rules_and_mq(|rules, mq| {
if let Some(mq) = mq {
if mq.evaluate(before) != mq.evaluate(after) {
return true
}
}
mq_eval_changed(rules, before, after)
}) {
});
if changed {
return true
}
}