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 | |
36 | namespace WebCore { |
37 | |
38 | class Element; |
39 | |
40 | class IntersectionObserverEntry : public RefCounted<IntersectionObserverEntry> { |
41 | WTF_MAKE_FAST_ALLOCATED; |
42 | public: |
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 | |
68 | private: |
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 | |