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Bug 1355351 - Make pseudo-elements return the correct style via getComputedStyle

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* Add a node property to access the ::before and ::after pseudo-elements
* Look for the frame for ::before and ::after pseudos
* Clean up pseudo-element props
* Simplify nsLayoutUtils callers, and make child iterators notice display: contents pseudos

Tag #1375
This commit is contained in:
Matt A. Tobin 2020-04-17 05:10:25 -04:00 • committed by Roy Tam
commit d3ffda520f
16 changed files with 188 additions and 241 deletions
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23
dom/xml/nsXMLElement.cpp
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@ -9,6 +9,7 @@
#include "mozilla/dom/ElementInlines.h"
#include "nsContentUtils.h" // nsAutoScriptBlocker
using namespace mozilla;
using namespace mozilla::dom;
nsresult
@ -29,4 +30,26 @@ nsXMLElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
return ElementBinding::Wrap(aCx, this, aGivenProto);
}
void
nsXMLElement::UnbindFromTree(bool aDeep, bool aNullParent)
{
CSSPseudoElementType pseudoType = GetPseudoElementType();
bool isBefore = pseudoType == CSSPseudoElementType::before;
nsIAtom* property = isBefore
? nsGkAtoms::beforePseudoProperty : nsGkAtoms::afterPseudoProperty;
switch (pseudoType) {
case CSSPseudoElementType::before:
case CSSPseudoElementType::after: {
MOZ_ASSERT(GetParent());
MOZ_ASSERT(GetParent()->IsElement());
GetParent()->DeleteProperty(property);
break;
}
default:
break;
}
Element::UnbindFromTree(aDeep, aNullParent);
}
NS_IMPL_ELEMENT_CLONE(nsXMLElement)