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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
79 lines
2.6 KiB
Rust
79 lines
2.6 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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//! A set of author stylesheets and their computed representation, such as the
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//! ones used for ShadowRoot.
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use crate::dom::TElement;
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#[cfg(feature = "gecko")]
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use crate::gecko_bindings::sugar::ownership::{HasBoxFFI, HasFFI, HasSimpleFFI};
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use crate::invalidation::media_queries::ToMediaListKey;
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use crate::shared_lock::SharedRwLockReadGuard;
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use crate::stylesheet_set::AuthorStylesheetSet;
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use crate::stylesheets::StylesheetInDocument;
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use crate::stylist::CascadeData;
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use crate::stylist::Stylist;
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use servo_arc::Arc;
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/// A set of author stylesheets and their computed representation, such as the
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/// ones used for ShadowRoot.
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#[derive(MallocSizeOf)]
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pub struct AuthorStyles<S>
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where
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S: StylesheetInDocument + PartialEq + 'static,
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{
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/// The sheet collection, which holds the sheet pointers, the invalidations,
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/// and all that stuff.
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pub stylesheets: AuthorStylesheetSet<S>,
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/// The actual cascade data computed from the stylesheets.
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#[ignore_malloc_size_of = "Measured as part of the stylist"]
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pub data: Arc<CascadeData>,
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}
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lazy_static! {
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static ref EMPTY_CASCADE_DATA: Arc<CascadeData> = Arc::new_leaked(CascadeData::new());
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}
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impl<S> AuthorStyles<S>
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where
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S: StylesheetInDocument + PartialEq + 'static,
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{
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/// Create an empty AuthorStyles.
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#[inline]
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pub fn new() -> Self {
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Self {
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stylesheets: AuthorStylesheetSet::new(),
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data: EMPTY_CASCADE_DATA.clone(),
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}
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}
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/// Flush the pending sheet changes, updating `data` as appropriate.
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///
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/// TODO(emilio): Need a host element and a snapshot map to do invalidation
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/// properly.
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#[inline]
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pub fn flush<E>(&mut self, stylist: &mut Stylist, guard: &SharedRwLockReadGuard)
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where
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E: TElement,
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S: ToMediaListKey,
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{
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let flusher = self
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.stylesheets
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.flush::<E>(/* host = */ None, /* snapshot_map = */ None);
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let result = stylist.rebuild_author_data(&self.data, flusher.sheets, guard);
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if let Ok(Some(new_data)) = result {
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self.data = new_data;
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}
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}
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}
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#[cfg(feature = "gecko")]
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unsafe impl HasFFI for AuthorStyles<crate::gecko::data::GeckoStyleSheet> {
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type FFIType = crate::gecko_bindings::structs::RawServoAuthorStyles;
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}
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#[cfg(feature = "gecko")]
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unsafe impl HasSimpleFFI for AuthorStyles<crate::gecko::data::GeckoStyleSheet> {}
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#[cfg(feature = "gecko")]
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unsafe impl HasBoxFFI for AuthorStyles<crate::gecko::data::GeckoStyleSheet> {}
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