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/*
* Copyright (C) 2012 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.
*/
#include "config.h"
#include "ScrollingStateScrollingNode.h"
#if ENABLE(THREADED_SCROLLING) || USE(COORDINATED_GRAPHICS)
#include "ScrollingStateTree.h"
#include "TextStream.h"
#include <wtf/OwnPtr.h>
namespace WebCore {
PassOwnPtr<ScrollingStateScrollingNode> ScrollingStateScrollingNode::create(ScrollingStateTree* stateTree, ScrollingNodeID nodeID)
{
return adoptPtr(new ScrollingStateScrollingNode(stateTree, nodeID));
}
ScrollingStateScrollingNode::ScrollingStateScrollingNode(ScrollingStateTree* stateTree, ScrollingNodeID nodeID)
: ScrollingStateNode(stateTree, nodeID)
, m_counterScrollingLayer(0)
, m_headerLayer(0)
, m_footerLayer(0)
, m_frameScaleFactor(1)
, m_wheelEventHandlerCount(0)
, m_shouldUpdateScrollLayerPositionOnMainThread(0)
, m_horizontalScrollElasticity(ScrollElasticityNone)
, m_verticalScrollElasticity(ScrollElasticityNone)
, m_hasEnabledHorizontalScrollbar(false)
, m_hasEnabledVerticalScrollbar(false)
, m_requestedScrollPositionRepresentsProgrammaticScroll(false)
, m_horizontalScrollbarMode(ScrollbarAuto)
, m_verticalScrollbarMode(ScrollbarAuto)
, m_headerHeight(0)
, m_footerHeight(0)
{
}
ScrollingStateScrollingNode::ScrollingStateScrollingNode(const ScrollingStateScrollingNode& stateNode)
: ScrollingStateNode(stateNode)
, m_viewportRect(stateNode.viewportRect())
, m_totalContentsSize(stateNode.totalContentsSize())
, m_frameScaleFactor(stateNode.frameScaleFactor())
, m_nonFastScrollableRegion(stateNode.nonFastScrollableRegion())
, m_wheelEventHandlerCount(stateNode.wheelEventHandlerCount())
, m_shouldUpdateScrollLayerPositionOnMainThread(stateNode.shouldUpdateScrollLayerPositionOnMainThread())
, m_horizontalScrollElasticity(stateNode.horizontalScrollElasticity())
, m_verticalScrollElasticity(stateNode.verticalScrollElasticity())
, m_hasEnabledHorizontalScrollbar(stateNode.hasEnabledHorizontalScrollbar())
, m_hasEnabledVerticalScrollbar(stateNode.hasEnabledVerticalScrollbar())
, m_requestedScrollPositionRepresentsProgrammaticScroll(stateNode.requestedScrollPositionRepresentsProgrammaticScroll())
, m_horizontalScrollbarMode(stateNode.horizontalScrollbarMode())
, m_verticalScrollbarMode(stateNode.verticalScrollbarMode())
, m_requestedScrollPosition(stateNode.requestedScrollPosition())
, m_scrollOrigin(stateNode.scrollOrigin())
, m_headerHeight(stateNode.headerHeight())
, m_footerHeight(stateNode.footerHeight())
{
setCounterScrollingLayer(stateNode.counterScrollingLayer());
setHeaderLayer(stateNode.headerLayer());
setFooterLayer(stateNode.footerLayer());
}
ScrollingStateScrollingNode::~ScrollingStateScrollingNode()
{
}
PassOwnPtr<ScrollingStateNode> ScrollingStateScrollingNode::clone()
{
return adoptPtr(new ScrollingStateScrollingNode(*this));
}
void ScrollingStateScrollingNode::setViewportRect(const IntRect& viewportRect)
{
if (m_viewportRect == viewportRect)
return;
m_viewportRect = viewportRect;
setPropertyChanged(ViewportRect);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setTotalContentsSize(const IntSize& totalContentsSize)
{
if (m_totalContentsSize == totalContentsSize)
return;
m_totalContentsSize = totalContentsSize;
setPropertyChanged(TotalContentsSize);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setFrameScaleFactor(float scaleFactor)
{
if (m_frameScaleFactor == scaleFactor)
return;
m_frameScaleFactor = scaleFactor;
setPropertyChanged(FrameScaleFactor);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setNonFastScrollableRegion(const Region& nonFastScrollableRegion)
{
if (m_nonFastScrollableRegion == nonFastScrollableRegion)
return;
m_nonFastScrollableRegion = nonFastScrollableRegion;
setPropertyChanged(NonFastScrollableRegion);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setWheelEventHandlerCount(unsigned wheelEventHandlerCount)
{
if (m_wheelEventHandlerCount == wheelEventHandlerCount)
return;
m_wheelEventHandlerCount = wheelEventHandlerCount;
setPropertyChanged(WheelEventHandlerCount);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setShouldUpdateScrollLayerPositionOnMainThread(MainThreadScrollingReasons reasons)
{
if (m_shouldUpdateScrollLayerPositionOnMainThread == reasons)
return;
m_shouldUpdateScrollLayerPositionOnMainThread = reasons;
setPropertyChanged(ShouldUpdateScrollLayerPositionOnMainThread);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setHorizontalScrollElasticity(ScrollElasticity horizontalScrollElasticity)
{
if (m_horizontalScrollElasticity == horizontalScrollElasticity)
return;
m_horizontalScrollElasticity = horizontalScrollElasticity;
setPropertyChanged(HorizontalScrollElasticity);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setVerticalScrollElasticity(ScrollElasticity verticalScrollElasticity)
{
if (m_verticalScrollElasticity == verticalScrollElasticity)
return;
m_verticalScrollElasticity = verticalScrollElasticity;
setPropertyChanged(VerticalScrollElasticity);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setHasEnabledHorizontalScrollbar(bool hasEnabledHorizontalScrollbar)
{
if (m_hasEnabledHorizontalScrollbar == hasEnabledHorizontalScrollbar)
return;
m_hasEnabledHorizontalScrollbar = hasEnabledHorizontalScrollbar;
setPropertyChanged(HasEnabledHorizontalScrollbar);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setHasEnabledVerticalScrollbar(bool hasEnabledVerticalScrollbar)
{
if (m_hasEnabledVerticalScrollbar == hasEnabledVerticalScrollbar)
return;
m_hasEnabledVerticalScrollbar = hasEnabledVerticalScrollbar;
setPropertyChanged(HasEnabledVerticalScrollbar);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setHorizontalScrollbarMode(ScrollbarMode horizontalScrollbarMode)
{
if (m_horizontalScrollbarMode == horizontalScrollbarMode)
return;
m_horizontalScrollbarMode = horizontalScrollbarMode;
setPropertyChanged(HorizontalScrollbarMode);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setVerticalScrollbarMode(ScrollbarMode verticalScrollbarMode)
{
if (m_verticalScrollbarMode == verticalScrollbarMode)
return;
m_verticalScrollbarMode = verticalScrollbarMode;
setPropertyChanged(VerticalScrollbarMode);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setRequestedScrollPosition(const IntPoint& requestedScrollPosition, bool representsProgrammaticScroll)
{
m_requestedScrollPosition = requestedScrollPosition;
m_requestedScrollPositionRepresentsProgrammaticScroll = representsProgrammaticScroll;
setPropertyChanged(RequestedScrollPosition);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setScrollOrigin(const IntPoint& scrollOrigin)
{
if (m_scrollOrigin == scrollOrigin)
return;
m_scrollOrigin = scrollOrigin;
setPropertyChanged(ScrollOrigin);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setHeaderHeight(int headerHeight)
{
if (m_headerHeight == headerHeight)
return;
m_headerHeight = headerHeight;
setPropertyChanged(HeaderHeight);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::setFooterHeight(int footerHeight)
{
if (m_footerHeight == footerHeight)
return;
m_footerHeight = footerHeight;
setPropertyChanged(FooterHeight);
m_scrollingStateTree->setHasChangedProperties(true);
}
void ScrollingStateScrollingNode::dumpProperties(TextStream& ts, int indent) const
{
ts << "(" << "Scrolling node" << "\n";
if (!m_viewportRect.isEmpty()) {
writeIndent(ts, indent + 1);
ts << "(viewport rect " << m_viewportRect.x() << " " << m_viewportRect.y() << " " << m_viewportRect.width() << " " << m_viewportRect.height() << ")\n";
}
if (!m_totalContentsSize.isEmpty()) {
writeIndent(ts, indent + 1);
ts << "(contents size " << m_totalContentsSize.width() << " " << m_totalContentsSize.height() << ")\n";
}
if (m_frameScaleFactor != 1) {
writeIndent(ts, indent + 1);
ts << "(frame scale factor " << m_frameScaleFactor << ")\n";
}
if (m_shouldUpdateScrollLayerPositionOnMainThread) {
writeIndent(ts, indent + 1);
ts << "(Scrolling on main thread because: " << ScrollingCoordinator::mainThreadScrollingReasonsAsText(m_shouldUpdateScrollLayerPositionOnMainThread) << ")\n";
}
if (m_requestedScrollPosition != IntPoint()) {
writeIndent(ts, indent + 1);
ts << "(requested scroll position " << m_requestedScrollPosition.x() << " " << m_requestedScrollPosition.y() << ")\n";
}
if (m_scrollOrigin != IntPoint()) {
writeIndent(ts, indent + 1);
ts << "(scroll origin " << m_scrollOrigin.x() << " " << m_scrollOrigin.y() << ")\n";
}
}
} // namespace WebCore
#endif // ENABLE(THREADED_SCROLLING) || USE(COORDINATED_GRAPHICS)