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layout: Implement ordered lists, CSS counters, and quotes per CSS 2.1

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§ 12.3-12.5.

Only simple alphabetic and numeric counter styles are supported. (This
is most of them though.)

Although this PR adds a sequential pass to layout, I verified that on
pages that contain a reasonable number of ordered lists (Reddit
`/r/rust`), the time spent in generated content resolution is dwarfed by
the time spent in the parallelizable parts of layout. So I don't expect
this to negatively affect our parallelism expect perhaps in pathological
cases.
This commit is contained in:
Patrick Walton 2015-03-05 12:37:37 -08:00
parent 2df4dd9e09
commit f9cdd05d58
39 changed files with 1704 additions and 537 deletions
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6
components/layout/traversal.rs
View file

@ -13,7 +13,7 @@ use context::LayoutContext;
use flow::{Flow, MutableFlowUtils};
use flow::{PreorderFlowTraversal, PostorderFlowTraversal};
use flow;
use incremental::{RestyleDamage, BUBBLE_ISIZES, REFLOW, REFLOW_OUT_OF_FLOW};
use incremental::{self, BUBBLE_ISIZES, REFLOW, REFLOW_OUT_OF_FLOW, RestyleDamage};
use wrapper::{layout_node_to_unsafe_layout_node, LayoutNode};
use wrapper::{PostorderNodeMutTraversal, ThreadSafeLayoutNode, UnsafeLayoutNode};
use wrapper::{PreorderDomTraversal, PostorderDomTraversal};
@ -171,7 +171,8 @@ impl<'a> PreorderDomTraversal for RecalcStyleForNode<'a> {
&mut applicable_declarations,
&mut shareable);
} else {
ThreadSafeLayoutNode::new(&node).set_restyle_damage(RestyleDamage::all())
ThreadSafeLayoutNode::new(&node).set_restyle_damage(
incremental::rebuild_and_reflow())
}
// Perform the CSS cascade.
@ -377,3 +378,4 @@ impl<'a> PostorderFlowTraversal for BuildDisplayList<'a> {
flow.build_display_list(self.layout_context);
}
}