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style: Force to stop computing children if we find the parent has display: none.

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Emilio Cobos Álvarez 2016-08-05 11:22:20 -07:00
parent 436c1b3089
commit 544a117911
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GPG key ID: 056B727BB9C1027C
9 changed files with 254 additions and 116 deletions
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32
components/style/parallel.rs
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@ -11,7 +11,7 @@
use dom::{OpaqueNode, TNode, UnsafeNode};
use std::mem;
use std::sync::atomic::Ordering;
use traversal::DomTraversalContext;
use traversal::{RestyleResult, DomTraversalContext};
use workqueue::{WorkQueue, WorkUnit, WorkerProxy};
#[allow(dead_code)]
@ -68,21 +68,27 @@ fn top_down_dom<N, C>(unsafe_nodes: UnsafeNodeList,
}
// Perform the appropriate traversal.
context.process_preorder(node);
let should_stop = match context.process_preorder(node) {
RestyleResult::Stop => true,
RestyleResult::Continue => false,
};
// Possibly enqueue the children.
let mut children_to_process = 0isize;
for kid in node.children() {
// Trigger the hook pre-adding the kid to the list. This can (and in
// fact uses to) change the result of the should_process operation.
//
// As of right now, this hook takes care of propagating the restyle
// flag down the tree. In the future, more accurate behavior is
// probably going to be needed.
context.pre_process_child_hook(node, kid);
if context.should_process(kid) {
children_to_process += 1;
discovered_child_nodes.push(kid.to_unsafe())
if !should_stop {
for kid in node.children() {
// Trigger the hook pre-adding the kid to the list. This can
// (and in fact uses to) change the result of the should_process
// operation.
//
// As of right now, this hook takes care of propagating the
// restyle flag down the tree. In the future, more accurate
// behavior is probably going to be needed.
context.pre_process_child_hook(node, kid);
if context.should_process(kid) {
children_to_process += 1;
discovered_child_nodes.push(kid.to_unsafe())
}
}
}