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Revert "Support CSS shadow parts"

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This reverts commit a852c0a86a.
This commit is contained in:
Basilisk-Dev 2026-05-11 09:43:27 -04:00 • committed by wuggy
commit 3df0ae2323
10 changed files with 29 additions and 1882 deletions
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35
dom/xbl/nsBindingManager.cpp
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@ -823,37 +823,16 @@ nsBindingManager::WalkAllRules(nsIStyleRuleProcessor::EnumFunc aFunc,
}
}
// The approach in WalkAllShadowRootHostRules seems reasonable on the surface and reminds me of what is done with mScopedRoot elsewhere. But something important is missing, either here or in the code that would normally use it.
void
nsBindingManager::WalkAllShadowRootHostRules(nsIStyleRuleProcessor::EnumFunc aFunc,
ElementDependentRuleProcessorData* aData)
{
if (!mBoundContentSet) {
return;
}
bool oldOnlyMatchHostPseudo = aData->mTreeMatchContext.mOnlyMatchHostPseudo;
nsIContent* oldScopedRoot = aData->mTreeMatchContext.mScopedRoot;
aData->mTreeMatchContext.mOnlyMatchHostPseudo = true;
for (auto iter = mBoundContentSet->Iter(); !iter.Done(); iter.Next()) {
nsIContent* boundContent = iter.Get()->GetKey();
ShadowRoot* shadowRoot = boundContent->GetShadowRoot();
if (!shadowRoot) {
continue;
}
nsXBLBinding* binding = shadowRoot->GetAssociatedBinding();
if (!binding) {
continue;
}
aData->mTreeMatchContext.mScopedRoot = boundContent;
binding->WalkRules(aFunc, aData);
}
aData->mTreeMatchContext.mScopedRoot = oldScopedRoot;
aData->mTreeMatchContext.mOnlyMatchHostPseudo = oldOnlyMatchHostPseudo;
}
{
aData->mTreeMatchContext.mOnlyMatchHostPseudo = true;
WalkAllRules(aFunc, aData, true);
aData->mTreeMatchContext.mOnlyMatchHostPseudo = false;
}
nsresult
nsBindingManager::MediumFeaturesChanged(nsPresContext* aPresContext,