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Bug 350252 - attribute change causes svg:use clone loop. r+sr=sicking

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This commit is contained in:
tor%cs.brown.edu 2006-09-05 16:20:01 +00:00
parent a9b17f0100
commit 6e1f609c0d
1 changed files with 6 additions and 4 deletions
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10
content/svg/content/src/nsSVGUseElement.cpp
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@ -123,7 +123,7 @@ protected:
nsCOMPtr<nsIContent> mOriginal; // if we've been cloned, our "real" copy
nsCOMPtr<nsIContent> mClone; // cloned tree
nsIContent *mSourceContent; // weak pointer to the observed element
nsCOMPtr<nsIContent> mSourceContent; // observed element
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsSVGUseElement, NS_SVG_USE_ELEMENT_IMPL_CID)
@ -165,7 +165,7 @@ NS_INTERFACE_MAP_END_INHERITING(nsSVGUseElementBase)
// Implementation
nsSVGUseElement::nsSVGUseElement(nsINodeInfo *aNodeInfo)
: nsSVGUseElementBase(aNodeInfo), mSourceContent(nsnull)
: nsSVGUseElementBase(aNodeInfo)
{
}
@ -351,8 +351,10 @@ nsSVGUseElement::CreateAnonymousContent(nsPresContext* aPresContext,
if (!targetContent)
return NS_ERROR_FAILURE;
RemoveListener();
targetContent->AddMutationObserver(this);
if (mSourceContent != targetContent) {
RemoveListener();
targetContent->AddMutationObserver(this);
}
mSourceContent = targetContent;
// make sure target is valid type for <use>