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Bug 1430557. r=longsonr, a=lizzard

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--HG--
extra : rebase_source : 5109c816d9ad1ce1881e3670b8d74ae0dc475223
This commit is contained in:
Jonathan Watt 2018-02-20 16:13:05 -05:00 • committed by Roy Tam
commit 459fe394c4
1 changed files with 19 additions and 2 deletions
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21
dom/svg/DOMSVGPathSegList.cpp
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@ -460,6 +460,18 @@ DOMSVGPathSegList::ReplaceItem(DOMSVGPathSeg& aNewItem,
float segAsRaw[1 + NS_SVG_PATH_SEG_MAX_ARGS];
domItem->ToSVGPathSegEncodedData(segAsRaw);
if (AnimListMirrorsBaseList()) {
// The anim val list is in sync with the base val list - remove mirroring
// animVal item if necessary. We do this *before* touching InternalList()
// so the removed item can correctly store its internal value.
DOMSVGPathSegList* animVal =
GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
if (animVal->ItemAt(aIndex)) {
animVal->ItemAt(aIndex)->RemovingFromList();
animVal->ItemAt(aIndex) = nullptr;
}
}
if (!InternalList().mData.ReplaceElementsAt(internalIndex, 1 + oldArgCount,
segAsRaw, 1 + newArgCount,
fallible)) {
@ -474,8 +486,13 @@ DOMSVGPathSegList::ReplaceItem(DOMSVGPathSeg& aNewItem,
int32_t delta = newArgCount - oldArgCount;
if (delta != 0) {
for (uint32_t i = aIndex + 1; i < LengthNoFlush(); ++i) {
mItems[i].mInternalDataIndex += delta;
// Sync up the internal indexes of all ItemProxys that come after aIndex:
UpdateListIndicesFromIndex(aIndex + 1, delta);
if (AnimListMirrorsBaseList()) {
// The anim val list is in sync with the base val list
DOMSVGPathSegList* animVal =
GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
animVal->UpdateListIndicesFromIndex(aIndex + 1, delta);
}
}