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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
//! Per-node data used in style calculation.
use properties::ComputedValues;
use selector_impl::PseudoElement;
use std::collections::HashMap;
use std::hash::BuildHasherDefault;
use std::sync::Arc;
use std::sync::atomic::AtomicIsize;
pub struct PrivateStyleData {
/// The results of CSS styling for this node.
pub style: Option<Arc<ComputedValues>>,
/// The results of CSS styling for each pseudo-element (if any).
pub per_pseudo: HashMap<PseudoElement, Arc<ComputedValues>,
BuildHasherDefault<::fnv::FnvHasher>>,
/// Information needed during parallel traversals.
pub parallel: DomParallelInfo,
}
impl PrivateStyleData {
pub fn new() -> Self {
PrivateStyleData {
style: None,
per_pseudo: HashMap::with_hasher(Default::default()),
parallel: DomParallelInfo::new(),
}
}
}
/// Information that we need stored in each DOM node.
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
pub struct DomParallelInfo {
/// The number of children that still need work done.
pub children_to_process: AtomicIsize,
}
impl DomParallelInfo {
pub fn new() -> DomParallelInfo {
DomParallelInfo {
children_to_process: AtomicIsize::new(0),
}
}
}
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