blob: 409eac49878c986cb47b56eb67c69a433b8f1ef0 [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/BlockObjCExceptions.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::willBeDestroyed()
{
m_delegate.nodeWillBeDestroyed();
}
void ScrollingTreeOverflowScrollingNodeMac::commitStateBeforeChildren(const ScrollingStateNode& stateNode)
{
ScrollingTreeOverflowScrollingNode::commitStateBeforeChildren(stateNode);
m_delegate.updateFromStateNode(downcast<ScrollingStateOverflowScrollingNode>(stateNode));
}
WheelEventHandlingResult ScrollingTreeOverflowScrollingNodeMac::handleWheelEvent(const PlatformWheelEvent& wheelEvent, EventTargeting eventTargeting)
{
#if ENABLE(SCROLLING_THREAD)
if (hasSynchronousScrollingReasons() && eventTargeting != EventTargeting::NodeOnly)
return { { WheelEventProcessingSteps::MainThreadForScrolling, WheelEventProcessingSteps::MainThreadForNonBlockingDOMEventDispatch }, false };
#endif
if (!canHandleWheelEvent(wheelEvent, eventTargeting))
return WheelEventHandlingResult::unhandled();
return WheelEventHandlingResult::result(m_delegate.handleWheelEvent(wheelEvent));
}
bool ScrollingTreeOverflowScrollingNodeMac::startAnimatedScrollToPosition(FloatPoint destinationPosition)
{
bool started = m_delegate.startAnimatedScrollToPosition(destinationPosition);
if (started)
willStartAnimatedScroll();
return started;
}
void ScrollingTreeOverflowScrollingNodeMac::stopAnimatedScroll()
{
m_delegate.stopAnimatedScroll();
}
void ScrollingTreeOverflowScrollingNodeMac::serviceScrollAnimation(MonotonicTime currentTime)
{
m_delegate.serviceScrollAnimation(currentTime);
}
void ScrollingTreeOverflowScrollingNodeMac::willDoProgrammaticScroll(const FloatPoint& targetScrollPosition)
{
m_delegate.willDoProgrammaticScroll(targetScrollPosition);
}
void ScrollingTreeOverflowScrollingNodeMac::currentScrollPositionChanged(ScrollType scrollType, ScrollingLayerPositionAction action)
{
ScrollingTreeOverflowScrollingNode::currentScrollPositionChanged(scrollType, action);
m_delegate.currentScrollPositionChanged();
}
FloatPoint ScrollingTreeOverflowScrollingNodeMac::adjustedScrollPosition(const FloatPoint& position, ScrollClamping clamp) const
{
FloatPoint scrollPosition(roundf(position.x()), roundf(position.y()));
return ScrollingTreeOverflowScrollingNode::adjustedScrollPosition(scrollPosition, clamp);
}
void ScrollingTreeOverflowScrollingNodeMac::repositionScrollingLayers()
{
BEGIN_BLOCK_OBJC_EXCEPTIONS
[static_cast<CALayer*>(scrollContainerLayer()) _web_setLayerBoundsOrigin:currentScrollOffset()];
END_BLOCK_OBJC_EXCEPTIONS
}
void ScrollingTreeOverflowScrollingNodeMac::repositionRelatedLayers()
{
m_delegate.updateScrollbarPainters();
}
} // namespace WebCore
#endif // ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC)