1/*
2 * Copyright (C) 2016 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#pragma once
27
28#if ENABLE(INTERSECTION_OBSERVER)
29
30#include "DOMRectReadOnly.h"
31#include "Element.h"
32#include <wtf/RefCounted.h>
33#include <wtf/Vector.h>
34#include <wtf/text/WTFString.h>
35
36namespace WebCore {
37
38class Element;
39
40class IntersectionObserverEntry : public RefCounted<IntersectionObserverEntry> {
41 WTF_MAKE_FAST_ALLOCATED;
42public:
43
44 struct Init {
45 double time;
46 Optional<DOMRectInit> rootBounds;
47 DOMRectInit boundingClientRect;
48 DOMRectInit intersectionRect;
49 double intersectionRatio;
50 RefPtr<Element> target;
51 bool isIntersecting;
52 };
53
54 static Ref<IntersectionObserverEntry> create(const Init& init)
55 {
56 return WTF::adoptRef(*new IntersectionObserverEntry(init));
57 }
58
59 double time() const { return m_time; }
60 DOMRectReadOnly* rootBounds() const { return m_rootBounds.get(); }
61 DOMRectReadOnly* boundingClientRect() const { return m_boundingClientRect.get(); }
62 DOMRectReadOnly* intersectionRect() const { return m_intersectionRect.get(); }
63 Element* target() const { return m_target.get(); }
64
65 bool isIntersecting() const { return m_isIntersecting; }
66 double intersectionRatio() const { return m_intersectionRatio; }
67
68private:
69 IntersectionObserverEntry(const Init&);
70
71 double m_time { 0 };
72 RefPtr<DOMRectReadOnly> m_rootBounds;
73 RefPtr<DOMRectReadOnly> m_boundingClientRect;
74 RefPtr<DOMRectReadOnly> m_intersectionRect;
75 double m_intersectionRatio { 0 };
76 RefPtr<Element> m_target;
77 bool m_isIntersecting { false };
78};
79
80
81} // namespace WebCore
82
83#endif // ENABLE(INTERSECTION_OBSERVER)
84