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Refactor parallel dom traversal to be agnostic to the processing steps themselves.

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Bobby Holley 2015-12-30 17:02:38 -08:00
parent 5ad9207a99
commit 947134949a
4 changed files with 262 additions and 327 deletions
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32
components/layout/sequential.rs
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@ -14,39 +14,33 @@ use fragment::FragmentBorderBoxIterator;
use generated_content::ResolveGeneratedContent;
use traversal::PostorderNodeMutTraversal;
use traversal::{AssignBSizesAndStoreOverflow, AssignISizes};
use traversal::{BubbleISizes, ConstructFlows, RecalcStyleForNode};
use traversal::{BuildDisplayList, ComputeAbsolutePositions};
use traversal::{PostorderDomTraversal, PreorderDomTraversal};
use traversal::{BubbleISizes, BuildDisplayList, ComputeAbsolutePositions};
use traversal::{DomTraversal, DomTraversalContext};
use util::opts;
use wrapper::LayoutNode;
pub fn traverse_dom_preorder<'le, N>(root: N,
shared_layout_context: &SharedLayoutContext)
where N: LayoutNode<'le> {
fn doit<'le, N>(node: N,
recalc_style: RecalcStyleForNode,
construct_flows: ConstructFlows)
where N: LayoutNode<'le> {
recalc_style.process(node);
pub fn traverse_dom_preorder<'ln, N, T>(root: N,
shared_layout_context: &SharedLayoutContext)
where N: LayoutNode<'ln>,
T: DomTraversal<'ln, N> {
fn doit<'a, 'ln, N, T>(context: &'a DomTraversalContext<'a>, node: N)
where N: LayoutNode<'ln>, T: DomTraversal<'ln, N> {
T::process_preorder(context, node);
for kid in node.children() {
doit(kid, recalc_style, construct_flows);
doit::<N, T>(context, kid);
}
construct_flows.process(node);
T::process_postorder(context, node);
}
let layout_context = LayoutContext::new(shared_layout_context);
let recalc_style = RecalcStyleForNode {
layout_context: &layout_context,
root: root.opaque(),
};
let construct_flows = ConstructFlows {
let traversal_context = DomTraversalContext {
layout_context: &layout_context,
root: root.opaque(),
};
doit::<'le, N>(root, recalc_style, construct_flows);
doit::<N, T>(&traversal_context, root);
}
pub fn resolve_generated_content(root: &mut FlowRef, shared_layout_context: &SharedLayoutContext) {