author | Miko Mynttinen <mikokm@gmail.com> |
Mon, 21 Jan 2019 21:50:11 +0000 | |
changeset 454738 | ad20edb20e58f913e922dff27005fe088903e5e9 |
parent 454737 | 39d0c50a2209e0f0c982b1d121765c9dc950e161 |
child 454739 | f722c4dbd4ccc19911de8ad05423363e0b5b2da7 |
push id | 35411 |
push user | csabou@mozilla.com |
push date | Tue, 22 Jan 2019 03:53:40 +0000 |
treeherder | mozilla-central@ada22b635f8d [default view] [failures only] |
perfherder | [talos] [build metrics] [platform microbench] (compared to previous push) |
reviewers | mattwoodrow |
bugs | 1518069 |
milestone | 66.0a1 |
first release with | nightly linux32
nightly linux64
nightly mac
nightly win32
nightly win64
|
last release without | nightly linux32
nightly linux64
nightly mac
nightly win32
nightly win64
|
--- a/layout/generic/nsFrame.cpp +++ b/layout/generic/nsFrame.cpp @@ -2540,16 +2540,23 @@ static bool FrameParticipatesIn3DContext MOZ_ASSERT(frame == ancestor); return true; } static bool ItemParticipatesIn3DContext(nsIFrame* aAncestor, nsDisplayItem* aItem) { auto type = aItem->GetType(); + + if (type == DisplayItemType::TYPE_WRAP_LIST && + aItem->GetChildren()->Count() == 1) { + // If the wraplist has only one child item, use the type of that item. + type = aItem->GetChildren()->GetBottom()->GetType(); + } + if (type != DisplayItemType::TYPE_TRANSFORM && type != DisplayItemType::TYPE_PERSPECTIVE) { return false; } nsIFrame* transformFrame = aItem->Frame(); if (aAncestor->GetContent() == transformFrame->GetContent()) { return true; }