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);
}
void ScrollingTree::commitNewTreeState(PassOwnPtr<ScrollingStateTree> scrollingStateTree)
{
ASSERT(ScrollingThread::isCurrentThread());
if (scrollingStateTree->rootStateNode()->changedProperties() & (ScrollingStateScrollingNode::WheelEventHandlerCount | ScrollingStateScrollingNode::NonFastScrollableRegion) || scrollingStateTree->rootStateNode()->scrollLayerDidChange()) {
MutexLocker lock(m_mutex);
if (scrollingStateTree->rootStateNode()->scrollLayerDidChange())
m_mainFrameScrollPosition = IntPoint();
if (scrollingStateTree->rootStateNode()->changedProperties() & ScrollingStateScrollingNode::WheelEventHandlerCount)
m_hasWheelEventHandlers = scrollingStateTree->rootStateNode()->wheelEventHandlerCount();
if (scrollingStateTree->rootStateNode()->changedProperties() & ScrollingStateScrollingNode::NonFastScrollableRegion)
m_nonFastScrollableRegion = scrollingStateTree->rootStateNode()->nonFastScrollableRegion();
}
TemporaryChange<bool> changeHandlingProgrammaticScroll(m_isHandlingProgrammaticScroll, scrollingStateTree->rootStateNode()->requestedScrollPositionRepresentsProgrammaticScroll());
removeDestroyedNodes(scrollingStateTree.get());
updateTreeFromStateNode(scrollingStateTree->rootStateNode());
}
void ScrollingTree::commitNewTreeState(PassOwnPtr<ScrollingTreeState> scrollingTreeState)
{
ASSERT(ScrollingThread::isCurrentThread());
if (scrollingTreeState->changedProperties() & (ScrollingTreeState::WheelEventHandlerCount | ScrollingTreeState::NonFastScrollableRegion | ScrollingTreeState::ScrollLayer)) {
MutexLocker lock(m_mutex);
if (scrollingTreeState->changedProperties() & ScrollingTreeState::ScrollLayer)
m_mainFrameScrollPosition = IntPoint();
if (scrollingTreeState->changedProperties() & ScrollingTreeState::WheelEventHandlerCount)
m_hasWheelEventHandlers = scrollingTreeState->wheelEventHandlerCount();
if (scrollingTreeState->changedProperties() & ScrollingTreeState::NonFastScrollableRegion)
m_nonFastScrollableRegion = scrollingTreeState->nonFastScrollableRegion();
}
TemporaryChange<bool> changeHandlingProgrammaticScroll(m_isHandlingProgrammaticScroll, scrollingTreeState->requestedScrollPositionRepresentsProgrammaticScroll());
m_rootNode->update(scrollingTreeState.get());
updateDebugRootLayer();
}
