本文整理汇总了C++中PassOwnPtr::hasNewRootStateNode方法的典型用法代码示例。如果您正苦于以下问题：C++ PassOwnPtr::hasNewRootStateNode方法的具体用法？C++ PassOwnPtr::hasNewRootStateNode怎么用？C++ PassOwnPtr::hasNewRootStateNode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PassOwnPtr的用法示例。
在下文中一共展示了PassOwnPtr::hasNewRootStateNode方法的1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: commitNewTreeState
void ScrollingTree::commitNewTreeState(PassOwnPtr<ScrollingStateTree> scrollingStateTree)
{
bool rootStateNodeChanged = scrollingStateTree->hasNewRootStateNode();
ScrollingStateScrollingNode* rootNode = scrollingStateTree->rootStateNode();
if (rootNode
&& (rootStateNodeChanged
|| rootNode->hasChangedProperty(ScrollingStateScrollingNode::WheelEventHandlerCount)
|| rootNode->hasChangedProperty(ScrollingStateScrollingNode::NonFastScrollableRegion)
|| rootNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))) {
MutexLocker lock(m_mutex);
if (rootStateNodeChanged || rootNode->hasChangedProperty(ScrollingStateNode::ScrollLayer))
m_mainFrameScrollPosition = FloatPoint();
if (rootStateNodeChanged || rootNode->hasChangedProperty(ScrollingStateScrollingNode::WheelEventHandlerCount))
m_hasWheelEventHandlers = scrollingStateTree->rootStateNode()->wheelEventHandlerCount();
if (rootStateNodeChanged || rootNode->hasChangedProperty(ScrollingStateScrollingNode::NonFastScrollableRegion))
m_nonFastScrollableRegion = scrollingStateTree->rootStateNode()->nonFastScrollableRegion();
}
bool scrollRequestIsProgammatic = rootNode ? rootNode->requestedScrollPositionRepresentsProgrammaticScroll() : false;
TemporaryChange<bool> changeHandlingProgrammaticScroll(m_isHandlingProgrammaticScroll, scrollRequestIsProgammatic);
removeDestroyedNodes(*scrollingStateTree);
updateTreeFromStateNode(rootNode);
}