diff options
| -rw-r--r-- | Source/WebCore/rendering/RenderObject.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Source/WebCore/rendering/RenderObject.cpp b/Source/WebCore/rendering/RenderObject.cpp index 012427c..ccd7c14 100644 --- a/Source/WebCore/rendering/RenderObject.cpp +++ b/Source/WebCore/rendering/RenderObject.cpp @@ -1667,6 +1667,12 @@ void RenderObject::styleWillChange(StyleDifference diff, const RenderStyle* newS // If our z-index changes value or our visibility changes, // we need to dirty our stacking context's z-order list. if (newStyle) { +#if ENABLE(COMPOSITED_FIXED_ELEMENTS) + RenderLayer* layer = hasLayer() ? enclosingLayer() : 0; + if (layer && m_style->position() != newStyle->position() + && (m_style->position() == FixedPosition || newStyle->position() == FixedPosition)) + layer->dirtyZOrderLists(); +#endif bool visibilityChanged = m_style->visibility() != newStyle->visibility() || m_style->zIndex() != newStyle->zIndex() || m_style->hasAutoZIndex() != newStyle->hasAutoZIndex(); |