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ported from UXP: Bug 1331322 - Allow tagging of pseudo-implementing native anonymous content with the pseudo type at creation time (b723a5c8)

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roytam1
2022-04-12 13:27:13 +08:00
parent b66784a394
commit 794dd4ef30
24 changed files with 269 additions and 131 deletions
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layout/forms/nsColorControlFrame.cpp
+2 -5
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@@ -69,6 +69,7 @@ nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
{
nsCOMPtr<nsIDocument> doc = mContent->GetComposedDoc();
mColorContent = doc->CreateHTMLElement(nsGkAtoms::div);
mColorContent->SetPseudoElementType(CSSPseudoElementType::mozColorSwatch);
// Mark the element to be native anonymous before setting any attributes.
mColorContent->SetIsNativeAnonymousRoot();
@@ -76,11 +77,7 @@ nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
nsresult rv = UpdateColor();
NS_ENSURE_SUCCESS(rv, rv);
CSSPseudoElementType pseudoType = CSSPseudoElementType::mozColorSwatch;
RefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
StyleContext(), mColorContent->AsElement());
if (!aElements.AppendElement(ContentInfo(mColorContent, newStyleContext))) {
if (!aElements.AppendElement(mColorContent)) {
return NS_ERROR_OUT_OF_MEMORY;
}