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layout: Mark the styles of elements with pseudos as unshareable.

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Makes multiple `<br>` elements work, since those are implemented via
`before` pseudos.
This commit is contained in:
Patrick Walton 2014-10-04 19:10:32 -07:00
parent eff0de0ce1
commit a0b369ae7d
6 changed files with 29 additions and 7 deletions
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14
components/layout/css/matching.rs
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@ -8,7 +8,8 @@ use css::node_style::StyledNode;
use construct::FlowConstructor;
use context::LayoutContext;
use util::{LayoutDataAccess, LayoutDataWrapper};
use wrapper::{LayoutElement, LayoutNode, PostorderNodeMutTraversal, ThreadSafeLayoutNode, TLayoutNode};
use wrapper::{LayoutElement, LayoutNode, PostorderNodeMutTraversal, ThreadSafeLayoutNode};
use wrapper::{TLayoutNode};
use script::dom::node::{TextNodeTypeId};
use servo_util::bloom::BloomFilter;
@ -233,11 +234,13 @@ impl StyleSharingCandidate {
}
match (&self.class, element.get_attr(&ns!(""), "class")) {
(&None, Some(_)) | (&Some(_), None) => return false,
(&Some(ref this_class), Some(element_class)) if element_class != this_class.as_slice() => {
(&Some(ref this_class), Some(element_class))
if element_class != this_class.as_slice() => {
return false
}
(&Some(_), Some(_)) | (&None, None) => {}
}
true
}
}
@ -440,7 +443,9 @@ impl<'ln> MatchMethods for LayoutNode<'ln> {
Some(After),
&mut applicable_declarations.after);
*shareable = applicable_declarations.normal_shareable
*shareable = applicable_declarations.normal_shareable &&
applicable_declarations.before.len() == 0 &&
applicable_declarations.after.len() == 0
}
unsafe fn share_style_if_possible(&self,
@ -537,7 +542,8 @@ impl<'ln> MatchMethods for LayoutNode<'ln> {
// First, check to see whether we can share a style with someone.
let sharing_result = unsafe {
self.share_style_if_possible(layout_context.style_sharing_candidate_cache(), parent.clone())
self.share_style_if_possible(layout_context.style_sharing_candidate_cache(),
parent.clone())
};
// Otherwise, match and cascade selectors.