Pass the viewport rect and scroll origin independently into the scrolling tree, and make things floats
https://bugs.webkit.org/show_bug.cgi?id=128032
Reviewed by Tim Horton.
Pass the viewport rect and scroll offset independently into the ScrollingTree
via the ScrollingStateScrollingNode, since on iOS the scroll offset doesn't
always correspond to the viewport rect.
Make the viewport rect and the scroll origin be float-based, since on
Retina screens and with zooming these can both be non-integral.
Source/WebCore:
No behavior change.
* WebCore.exp.in:
* page/scrolling/AsyncScrollingCoordinator.cpp:
(WebCore::AsyncScrollingCoordinator::frameViewLayoutUpdated):
(WebCore::AsyncScrollingCoordinator::scheduleUpdateScrollPositionAfterAsyncScroll):
(WebCore::AsyncScrollingCoordinator::updateScrollPositionAfterAsyncScroll):
* page/scrolling/AsyncScrollingCoordinator.h:
(WebCore::AsyncScrollingCoordinator::ScheduledScrollUpdate::ScheduledScrollUpdate):
* page/scrolling/ScrollingStateScrollingNode.cpp:
(WebCore::ScrollingStateScrollingNode::ScrollingStateScrollingNode):
(WebCore::ScrollingStateScrollingNode::setViewportConstrainedObjectRect):
(WebCore::ScrollingStateScrollingNode::setScrollPosition):
(WebCore::ScrollingStateScrollingNode::dumpProperties):
* page/scrolling/ScrollingStateScrollingNode.h:
* page/scrolling/ScrollingTree.cpp:
(WebCore::ScrollingTree::shouldHandleWheelEventSynchronously):
(WebCore::ScrollingTree::commitNewTreeState):
(WebCore::ScrollingTree::mainFrameScrollPosition):
(WebCore::ScrollingTree::setMainFrameScrollPosition):
* page/scrolling/ScrollingTree.h:
* page/scrolling/ScrollingTreeNode.h:
* page/scrolling/ScrollingTreeScrollingNode.cpp:
(WebCore::ScrollingTreeScrollingNode::updateBeforeChildren):
* page/scrolling/ScrollingTreeScrollingNode.h:
(WebCore::ScrollingTreeScrollingNode::scrollPosition):
(WebCore::ScrollingTreeScrollingNode::viewportConstrainedObjectRect):
* page/scrolling/ThreadedScrollingTree.cpp:
(WebCore::ThreadedScrollingTree::scrollingTreeNodeDidScroll):
* page/scrolling/ThreadedScrollingTree.h:
* page/scrolling/ios/ScrollingTreeIOS.cpp:
(WebCore::ScrollingTreeIOS::scrollingTreeNodeDidScroll):
* page/scrolling/ios/ScrollingTreeIOS.h:
* page/scrolling/ios/ScrollingTreeScrollingNodeIOS.h:
* page/scrolling/ios/ScrollingTreeScrollingNodeIOS.mm:
(WebCore::ScrollingTreeScrollingNodeIOS::scrollPosition):
(WebCore::ScrollingTreeScrollingNodeIOS::setScrollPosition):
(WebCore::ScrollingTreeScrollingNodeIOS::setScrollPositionWithoutContentEdgeConstraints):
(WebCore::ScrollingTreeScrollingNodeIOS::setScrollLayerPosition):
(WebCore::ScrollingTreeScrollingNodeIOS::minimumScrollPosition):
(WebCore::ScrollingTreeScrollingNodeIOS::maximumScrollPosition):
* page/scrolling/mac/ScrollingTreeFixedNode.h:
* page/scrolling/mac/ScrollingTreeFixedNode.mm:
(WebCore::ScrollingTreeFixedNode::parentScrollPositionDidChange):
* page/scrolling/mac/ScrollingTreeScrollingNodeMac.h:
* page/scrolling/mac/ScrollingTreeScrollingNodeMac.mm:
(WebCore::ScrollingTreeScrollingNodeMac::updateAfterChildren):
(WebCore::ScrollingTreeScrollingNodeMac::absoluteScrollPosition):
(WebCore::ScrollingTreeScrollingNodeMac::adjustScrollPositionToBoundsIfNecessary):
(WebCore::ScrollingTreeScrollingNodeMac::scrollPosition):
(WebCore::ScrollingTreeScrollingNodeMac::setScrollPosition):
(WebCore::ScrollingTreeScrollingNodeMac::setScrollPositionWithoutContentEdgeConstraints):
(WebCore::ScrollingTreeScrollingNodeMac::setScrollLayerPosition):
(WebCore::ScrollingTreeScrollingNodeMac::minimumScrollPosition):
(WebCore::ScrollingTreeScrollingNodeMac::maximumScrollPosition):
(WebCore::ScrollingTreeScrollingNodeMac::updateMainFramePinState):
(WebCore::ScrollingTreeScrollingNodeMac::logExposedUnfilledArea):
* page/scrolling/mac/ScrollingTreeStickyNode.h:
* page/scrolling/mac/ScrollingTreeStickyNode.mm:
(WebCore::ScrollingTreeStickyNode::parentScrollPositionDidChange):
* platform/graphics/FloatPoint.h:
(WebCore::FloatPoint::shrunkTo):
Source/WebKit2:
* Shared/Scrolling/RemoteScrollingCoordinatorTransaction.cpp:
(ArgumentCoder<ScrollingStateScrollingNode>::encode):
(ArgumentCoder<ScrollingStateScrollingNode>::decode):
* UIProcess/Scrolling/RemoteScrollingTree.cpp:
(WebKit::RemoteScrollingTree::scrollingTreeNodeDidScroll):
* UIProcess/Scrolling/RemoteScrollingTree.h:
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@163231 268f45cc-cd09-0410-ab3c-d52691b4dbfc
28 files changed
