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Track the restyle root and use it to do less work during the traversal.

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MozReview-Commit-ID: A8O3JOpsv4E
This commit is contained in:
Bobby Holley 2017-07-18 18:38:47 -07:00
parent 0534f72925
commit d4aa8e3cef
9 changed files with 132 additions and 68 deletions
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11
components/style/stylist.rs
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@ -481,19 +481,20 @@ impl Stylist {
ua_sheets: Option<&UserAgentStylesheets>,
extra_data: &mut PerOrigin<ExtraStyleData>,
document_element: Option<E>,
)
) -> bool
where
E: TElement,
{
if !self.stylesheets.has_changed() {
return;
return false;
}
let author_style_disabled = self.stylesheets.author_style_disabled();
let (doc_stylesheets, origins_to_rebuild) = self.stylesheets.flush(document_element);
let (doc_stylesheets, origins_to_rebuild, have_invalidations) =
self.stylesheets.flush(document_element);
if origins_to_rebuild.is_empty() {
return;
return have_invalidations;
}
self.num_rebuilds += 1;
@ -538,6 +539,8 @@ impl Stylist {
extra_data,
origins_to_rebuild,
);
have_invalidations
}
/// Insert a given stylesheet before another stylesheet in the document.