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Refactor style to be completely backend-independent

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This commit refactors the style crate to be completely independent of
the actual implementation and pseudo-elements supported.

This also adds a gecko backend which introduces parsing for the
anonymous box pseudo-elements[1], although there's still no way of
querying them.

https://mxr.mozilla.org/mozilla-central/source/layout/style/nsCSSAnonBoxList.h
This commit is contained in:
Emilio Cobos Álvarez 2016-02-08 02:53:22 +01:00
parent a164176876
commit dd503dfacb
41 changed files with 767 additions and 310 deletions
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4
components/layout/traversal.rs
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@ -16,6 +16,7 @@ use incremental::{BUBBLE_ISIZES, REFLOW, REFLOW_OUT_OF_FLOW, REPAINT, RestyleDam
use std::mem;
use style::context::{StyleContext, ReflowGoal};
use style::matching::MatchMethods;
use style::selector_impl::ServoSelectorImpl;
use style::traversal::{DomTraversalContext, STYLE_BLOOM};
use style::traversal::{put_thread_local_bloom_filter, recalc_style_at};
use util::opts;
@ -27,7 +28,8 @@ pub struct RecalcStyleAndConstructFlows<'lc> {
root: OpaqueNode,
}
impl<'lc, 'ln, N: LayoutNode<'ln>> DomTraversalContext<'ln, N> for RecalcStyleAndConstructFlows<'lc> {
impl<'lc, 'ln, N: LayoutNode<'ln>> DomTraversalContext<'ln, N> for RecalcStyleAndConstructFlows<'lc>
where N::ConcreteElement: ::selectors::Element<Impl=ServoSelectorImpl> {
type SharedContext = SharedLayoutContext;
#[allow(unsafe_code)]
fn new<'a>(shared: &'a Self::SharedContext, root: OpaqueNode) -> Self {