Unreviewed, rolling out r250415.
[WebKit-https.git] / Source / WebCore / page / scrolling / ScrollingStateFrameHostingNode.cpp
1 /*
2  * Copyright (C) 2019 Apple Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23  * THE POSSIBILITY OF SUCH DAMAGE.
24  */
25
26 #include "config.h"
27 #include "ScrollingStateFrameHostingNode.h"
28
29 #if ENABLE(ASYNC_SCROLLING)
30
31 #include "ScrollingStateTree.h"
32 #include <wtf/text/TextStream.h>
33
34 namespace WebCore {
35
36 Ref<ScrollingStateFrameHostingNode> ScrollingStateFrameHostingNode::create(ScrollingStateTree& stateTree, ScrollingNodeID nodeID)
37 {
38     return adoptRef(*new ScrollingStateFrameHostingNode(stateTree, nodeID));
39 }
40
41 ScrollingStateFrameHostingNode::ScrollingStateFrameHostingNode(ScrollingStateTree& stateTree, ScrollingNodeID nodeID)
42     : ScrollingStateNode(ScrollingNodeType::FrameHosting, stateTree, nodeID)
43 {
44     ASSERT(isFrameHostingNode());
45 }
46
47 ScrollingStateFrameHostingNode::ScrollingStateFrameHostingNode(const ScrollingStateFrameHostingNode& stateNode, ScrollingStateTree& adoptiveTree)
48     : ScrollingStateNode(stateNode, adoptiveTree)
49     , m_parentRelativeScrollableRect(stateNode.parentRelativeScrollableRect())
50 {
51 }
52
53 ScrollingStateFrameHostingNode::~ScrollingStateFrameHostingNode() = default;
54
55 Ref<ScrollingStateNode> ScrollingStateFrameHostingNode::clone(ScrollingStateTree& adoptiveTree)
56 {
57     return adoptRef(*new ScrollingStateFrameHostingNode(*this, adoptiveTree));
58 }
59
60 void ScrollingStateFrameHostingNode::setPropertyChangedBitsAfterReattach()
61 {
62     setPropertyChangedBit(ParentRelativeScrollableRect);
63
64     ScrollingStateNode::setPropertyChangedBitsAfterReattach();
65 }
66
67 void ScrollingStateFrameHostingNode::setParentRelativeScrollableRect(const LayoutRect& parentRelativeScrollableRect)
68 {
69     if (m_parentRelativeScrollableRect == parentRelativeScrollableRect)
70         return;
71
72     m_parentRelativeScrollableRect = parentRelativeScrollableRect;
73     setPropertyChanged(ParentRelativeScrollableRect);
74 }
75
76 void ScrollingStateFrameHostingNode::dumpProperties(TextStream& ts, ScrollingStateTreeAsTextBehavior behavior) const
77 {
78     ts << "Frame hosting node";
79     ScrollingStateNode::dumpProperties(ts, behavior);
80
81     if (!m_parentRelativeScrollableRect.isEmpty())
82         ts.dumpProperty("parent relative scrollable rect", m_parentRelativeScrollableRect);
83 }
84
85 } // namespace WebCore
86
87 #endif // ENABLE(ASYNC_SCROLLING)