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Bug 1176395 - When an element is both position:sticky and transformed, apply the position:sticky outside the transform. r=roc

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Conceptually, the transformed content is position:sticky. position:fixed
behaves similarly.
This commit is contained in:
Botond Ballo 2015-12-09 15:24:39 -05:00
parent 9813077811
commit c428b2bdaf
1 changed files with 7 additions and 6 deletions
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13
layout/generic/nsFrame.cpp
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@ -2180,12 +2180,6 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
resultList.AppendNewToTop(
new (aBuilder) nsDisplayOpacity(aBuilder, this, &resultList, opacityItemForEventsOnly));
}
/* If we have sticky positioning, wrap it in a sticky position item.
*/
if (useStickyPosition) {
resultList.AppendNewToTop(
new (aBuilder) nsDisplayStickyPosition(aBuilder, this, &resultList));
}
/* If we're going to apply a transformation and don't have preserve-3d set, wrap
* everything in an nsDisplayTransform. If there's nothing in the list, don't add
@ -2257,6 +2251,13 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
}
/* If we have sticky positioning, wrap it in a sticky position item.
*/
if (useStickyPosition) {
resultList.AppendNewToTop(
new (aBuilder) nsDisplayStickyPosition(aBuilder, this, &resultList));
}
/* If we're doing VR rendering, then we need to wrap everything in a nsDisplayVR
*/
if (vrHMDInfo && !resultList.IsEmpty()) {