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a0617bff0d
This patch is generated by running `cargo +nightly fmt` under `servo/components/style/` and `servo/ports/geckolib` against mozilla-central https://hg.mozilla.org/mozilla-central/rev/b193f2e7a6a5d1f042c957ea4acd5c89bf210512 My nightly version is: 1.58.0-nightly (c9c4b5d72 2021-11-17) Manually remove the redundant braces in author_styles.rs to fix a warning. Differential Revision: https://phabricator.services.mozilla.com/D131556
58 lines
2.1 KiB
Rust
58 lines
2.1 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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//! Resolved values for counter properties
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use super::{Context, ToResolvedValue};
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use crate::values::computed;
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#[inline]
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fn allow_element_content_none() -> bool {
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#[cfg(feature = "gecko")]
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return static_prefs::pref!("layout.css.element-content-none.enabled");
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#[cfg(feature = "servo")]
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return false;
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}
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/// https://drafts.csswg.org/css-content/#content-property
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///
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/// We implement this at resolved value time because otherwise it causes us to
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/// allocate a bunch of useless initial structs for ::before / ::after, which is
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/// a bit unfortunate.
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///
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/// Though these should be temporary, mostly, so if this causes complexity in
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/// other places, it should be fine to move to `StyleAdjuster`.
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///
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/// See https://github.com/w3c/csswg-drafts/issues/4632 for where some related
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/// issues are being discussed.
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impl ToResolvedValue for computed::Content {
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type ResolvedValue = Self;
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#[inline]
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fn to_resolved_value(self, context: &Context) -> Self {
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let (is_pseudo, is_before_or_after, is_marker) = match context.style.pseudo() {
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Some(ref pseudo) => (true, pseudo.is_before_or_after(), pseudo.is_marker()),
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None => (false, false, false),
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};
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match self {
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Self::Normal if is_before_or_after => Self::None,
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// For now, make `content: none` compute to `normal` for pseudos
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// other than ::before, ::after and ::marker, as we don't respect it.
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// https://github.com/w3c/csswg-drafts/issues/6124
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// Ditto for non-pseudo elements if the pref is disabled.
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Self::None
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if (is_pseudo && !is_before_or_after && !is_marker) ||
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(!is_pseudo && !allow_element_content_none()) =>
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{
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Self::Normal
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},
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other => other,
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}
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}
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#[inline]
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fn from_resolved_value(resolved: Self) -> Self {
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resolved
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}
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}
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