nsresult
nsSVGAnimatedTransformList::SetBaseValue(const SVGTransformList& aValue)
{
SVGAnimatedTransformList *domWrapper =
SVGAnimatedTransformList::GetDOMWrapperIfExists(this);
if (domWrapper) {
// We must send this notification *before* changing mBaseVal! If the length
// of our baseVal is being reduced, our baseVal's DOM wrapper list may have
// to remove DOM items from itself, and any removed DOM items need to copy
// their internal counterpart values *before* we change them.
//
domWrapper->InternalBaseValListWillChangeLengthTo(aValue.Length());
}
// We don't need to call DidChange* here - we're only called by
// nsSVGElement::ParseAttribute under Element::SetAttr,
// which takes care of notifying.
nsresult rv = mBaseVal.CopyFrom(aValue);
if (NS_FAILED(rv) && domWrapper) {
// Attempting to increase mBaseVal's length failed - reduce domWrapper
// back to the same length:
domWrapper->InternalBaseValListWillChangeLengthTo(mBaseVal.Length());
} else {
mIsAttrSet = true;
}
return rv;
}
void
nsSVGAnimatedTransformList::ClearBaseValue()
{
SVGAnimatedTransformList *domWrapper =
SVGAnimatedTransformList::GetDOMWrapperIfExists(this);
if (domWrapper) {
// We must send this notification *before* changing mBaseVal! (See above.)
domWrapper->InternalBaseValListWillChangeLengthTo(0);
}
mBaseVal.Clear();
mIsAttrSet = false;
// Caller notifies
}