blob: 5b09793a84fa0f114cdb786496011d17bc74d26d [file] [log] [blame]
/*
* Copyright (C) 2019 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#import "ScrollingTreeOverflowScrollingNodeMac.h"
#if ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC)
#import "Logging.h"
#import "ScrollingStateOverflowScrollingNode.h"
#import "ScrollingTree.h"
#import "WebCoreCALayerExtras.h"
#import <wtf/text/TextStream.h>
namespace WebCore {
Ref<ScrollingTreeOverflowScrollingNodeMac> ScrollingTreeOverflowScrollingNodeMac::create(ScrollingTree& scrollingTree, ScrollingNodeID nodeID)
{
return adoptRef(*new ScrollingTreeOverflowScrollingNodeMac(scrollingTree, nodeID));
}
ScrollingTreeOverflowScrollingNodeMac::ScrollingTreeOverflowScrollingNodeMac(ScrollingTree& scrollingTree, ScrollingNodeID nodeID)
: ScrollingTreeOverflowScrollingNode(scrollingTree, nodeID)
, m_delegate(*this)
{
}
ScrollingTreeOverflowScrollingNodeMac::~ScrollingTreeOverflowScrollingNodeMac() = default;
void ScrollingTreeOverflowScrollingNodeMac::commitStateBeforeChildren(const ScrollingStateNode& stateNode)
{
ScrollingTreeOverflowScrollingNode::commitStateBeforeChildren(stateNode);
m_delegate.updateFromStateNode(downcast<ScrollingStateOverflowScrollingNode>(stateNode));
}
void ScrollingTreeOverflowScrollingNodeMac::commitStateAfterChildren(const ScrollingStateNode& stateNode)
{
ScrollingTreeOverflowScrollingNode::commitStateAfterChildren(stateNode);
const auto& overflowStateNode = downcast<ScrollingStateOverflowScrollingNode>(stateNode);
if (overflowStateNode.hasChangedProperty(ScrollingStateScrollingNode::RequestedScrollPosition)) {
auto scrollType = overflowStateNode.requestedScrollPositionRepresentsProgrammaticScroll() ? ScrollType::Programmatic : ScrollType::User;
scrollTo(overflowStateNode.requestedScrollPosition(), scrollType);
}
}
ScrollingEventResult ScrollingTreeOverflowScrollingNodeMac::handleWheelEvent(const PlatformWheelEvent& wheelEvent)
{
if (!canHaveScrollbars())
return ScrollingEventResult::DidNotHandleEvent;
m_delegate.handleWheelEvent(wheelEvent);
// FIXME: Scroll snap
scrollingTree().setOrClearLatchedNode(wheelEvent, scrollingNodeID());
scrollingTree().handleWheelEventPhase(wheelEvent.phase());
// FIXME: This needs to return whether the event was handled.
return ScrollingEventResult::DidHandleEvent;
}
FloatPoint ScrollingTreeOverflowScrollingNodeMac::adjustedScrollPosition(const FloatPoint& position, ScrollPositionClamp clamp) const
{
FloatPoint scrollPosition(roundf(position.x()), roundf(position.y()));
return ScrollingTreeOverflowScrollingNode::adjustedScrollPosition(scrollPosition, clamp);
}
void ScrollingTreeOverflowScrollingNodeMac::repositionScrollingLayers()
{
[scrollContainerLayer() _web_setLayerBoundsOrigin:currentScrollOffset()];
}
void ScrollingTreeOverflowScrollingNodeMac::repositionRelatedLayers()
{
m_delegate.updateScrollbarPainters();
}
} // namespace WebCore
#endif // ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC)