servo/components/style/data.rs
Bobby Holley 47059d2d26 Separate style+layout and layout-specific wrapper functionality.
This patch does a number of things, unfortunately all at once:
* Hoists a large subset of the layout wrapper functionality into the style system.
* Merges TElementAttributes into the newly-created TElement.
* Reorganizes LayoutData by style vs layout, and removes LayoutDataShared.
* Simplifies the API for borrowing style/layout data.

There's still more to do to make the style system usable standalone, but
this is a good start.
2015-12-29 11:50:03 -08:00

48 lines
1.4 KiB
Rust

/* 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/. */
use properties::ComputedValues;
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 this node's `before` pseudo-element, if any.
pub before_style: Option<Arc<ComputedValues>>,
/// The results of CSS styling for this node's `after` pseudo-element, if any.
pub after_style: Option<Arc<ComputedValues>>,
/// Information needed during parallel traversals.
pub parallel: DomParallelInfo,
}
impl PrivateStyleData {
pub fn new() -> PrivateStyleData {
PrivateStyleData {
style: None,
before_style: None,
after_style: None,
parallel: DomParallelInfo::new(),
}
}
}
/// Information that we need stored in each DOM node.
#[derive(HeapSizeOf)]
pub struct DomParallelInfo {
/// The number of children that still need work done.
pub children_count: AtomicIsize,
}
impl DomParallelInfo {
pub fn new() -> DomParallelInfo {
DomParallelInfo {
children_count: AtomicIsize::new(0),
}
}
}