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Diffstat (limited to '')
| -rw-r--r-- | dom/base/StaticRange.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/dom/base/StaticRange.cpp b/dom/base/StaticRange.cpp index 0946e8f9bf..73ff04c038 100644 --- a/dom/base/StaticRange.cpp +++ b/dom/base/StaticRange.cpp @@ -100,6 +100,13 @@ bool StaticRange::IsValid() const { return false; } + MOZ_ASSERT(mAreStartAndEndInSameTree == + (RangeUtils::ComputeRootNode(mStart.Container()) == + RangeUtils::ComputeRootNode(mEnd.Container()))); + if (!mAreStartAndEndInSameTree) { + return false; + } + const Maybe<int32_t> pointOrder = nsContentUtils::ComparePoints(mStart, mEnd); return pointOrder.isSome() && *pointOrder <= 0; } @@ -119,6 +126,9 @@ void StaticRange::DoSetRange(const RangeBoundaryBase<SPT, SRT>& aStartBoundary, if (checkCommonAncestor) { UpdateCommonAncestorIfNecessary(); } + + mAreStartAndEndInSameTree = RangeUtils::ComputeRootNode(mStart.Container()) == + RangeUtils::ComputeRootNode(mEnd.Container()); } /* static */ |