本文整理汇总了C++中LayoutObject::additionalCompositingReasons方法的典型用法代码示例。如果您正苦于以下问题：C++ LayoutObject::additionalCompositingReasons方法的具体用法？C++ LayoutObject::additionalCompositingReasons怎么用？C++ LayoutObject::additionalCompositingReasons使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类LayoutObject的用法示例。
在下文中一共展示了LayoutObject::additionalCompositingReasons方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: nonStyleDeterminedDirectReasons
CompositingReasons CompositingReasonFinder::nonStyleDeterminedDirectReasons(const PaintLayer* layer) const
{
CompositingReasons directReasons = CompositingReasonNone;
LayoutObject* layoutObject = layer->layoutObject();
if (hasOverflowScrollTrigger()) {
if (layer->clipParent())
directReasons |= CompositingReasonOutOfFlowClipping;
if (layer->needsCompositedScrolling())
directReasons |= CompositingReasonOverflowScrollingTouch;
}
// Composite |layer| if it is inside of an ancestor scrolling layer, but that
// scrolling layer is not not on the stacking context ancestor chain of |layer|.
// See the definition of the scrollParent property in Layer for more detail.
if (const PaintLayer* scrollingAncestor = layer->ancestorScrollingLayer()) {
if (scrollingAncestor->needsCompositedScrolling() && layer->scrollParent())
directReasons |= CompositingReasonOverflowScrollingParent;
}
if (requiresCompositingForPositionFixed(layer))
directReasons |= CompositingReasonPositionFixed;
directReasons |= layoutObject->additionalCompositingReasons();
ASSERT(!(directReasons & CompositingReasonComboAllStyleDeterminedReasons));
return directReasons;
}示例2: nonStyleDeterminedDirectReasons
CompositingReasons CompositingReasonFinder::nonStyleDeterminedDirectReasons(
const PaintLayer* layer) const {
CompositingReasons directReasons = CompositingReasonNone;
LayoutObject* layoutObject = layer->layoutObject();
if (m_compositingTriggers & OverflowScrollTrigger && layer->clipParent())
directReasons |= CompositingReasonOutOfFlowClipping;
if (layer->needsCompositedScrolling())
directReasons |= CompositingReasonOverflowScrollingTouch;
// Composite |layer| if it is inside of an ancestor scrolling layer, but that
// scrolling layer is not on the stacking context ancestor chain of |layer|.
// See the definition of the scrollParent property in Layer for more detail.
if (const PaintLayer* scrollingAncestor = layer->ancestorScrollingLayer()) {
if (scrollingAncestor->needsCompositedScrolling() && layer->scrollParent())
directReasons |= CompositingReasonOverflowScrollingParent;
}
// TODO(flackr): Rename functions and variables to include sticky position
// (i.e. ScrollDependentPosition rather than PositionFixed).
if (requiresCompositingForScrollDependentPosition(layer))
directReasons |= CompositingReasonScrollDependentPosition;
directReasons |= layoutObject->additionalCompositingReasons();
DCHECK(!(directReasons & CompositingReasonComboAllStyleDeterminedReasons));
return directReasons;
}