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style: Add an AllLinksVisitedAndUnvisited for invalidation.

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Otherwise, tests like the following fail, given we always match as unvisited,
and we'd never mark the link as needing invalidation.

<!doctype html>
<style>
a {
  color: red !important;
}

.foo :visited {
  color: green !important;
}
</style>
<div>
  <a href="https://google.es">visit me</a>
  <button onclick="this.parentNode.className = 'foo'">Then click me</button>
</div>

Bug: 1368240
MozReview-Commit-ID: LDv6S28c4ju
This commit is contained in:
Emilio Cobos Álvarez 2017-06-09 17:11:19 +02:00
parent fdf9093466
commit 4434509088
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GPG key ID: 056B727BB9C1027C
6 changed files with 42 additions and 2 deletions
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6
components/selectors/context.rs
View file

@ -48,6 +48,12 @@ pub enum MatchingMode {
pub enum VisitedHandlingMode {
/// All links are matched as if they are unvisted.
AllLinksUnvisited,
/// All links are matched as if they are visited and unvisited (both :link
/// and :visited match).
///
/// This is intended to be used from invalidation code, to be conservative
/// about whether we need to restyle a link.
AllLinksVisitedAndUnvisited,
/// A element's "relevant link" is the element being matched if it is a link
/// or the nearest ancestor link. The relevant link is matched as though it
/// is visited, and all other links are matched as if they are unvisited.

8
components/selectors/matching.rs
View file

@ -253,6 +253,10 @@ impl RelevantLinkStatus {
return false
}
if context.visited_handling == VisitedHandlingMode::AllLinksVisitedAndUnvisited {
return true;
}
// Non-relevant links are always unvisited.
if *self != RelevantLinkStatus::Found {
return false
@ -274,6 +278,10 @@ impl RelevantLinkStatus {
return false
}
if context.visited_handling == VisitedHandlingMode::AllLinksVisitedAndUnvisited {
return true;
}
// Non-relevant links are always unvisited.
if *self != RelevantLinkStatus::Found {
return true