1/*
2 * Copyright (C) 2006, 2007 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 COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "core/events/OverflowEvent.h"
28
29namespace blink {
30
31OverflowEventInit::OverflowEventInit()
32    : orient(0)
33    , horizontalOverflow(false)
34    , verticalOverflow(false)
35{
36}
37
38OverflowEvent::OverflowEvent()
39    : Event(EventTypeNames::overflowchanged, false, false)
40    , m_orient(VERTICAL)
41    , m_horizontalOverflow(false)
42    , m_verticalOverflow(false)
43{
44}
45
46OverflowEvent::OverflowEvent(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow)
47    : Event(EventTypeNames::overflowchanged, false, false)
48    , m_horizontalOverflow(horizontalOverflow)
49    , m_verticalOverflow(verticalOverflow)
50{
51    ASSERT(horizontalOverflowChanged || verticalOverflowChanged);
52
53    if (horizontalOverflowChanged && verticalOverflowChanged)
54        m_orient = BOTH;
55    else if (horizontalOverflowChanged)
56        m_orient = HORIZONTAL;
57    else
58        m_orient = VERTICAL;
59}
60
61OverflowEvent::OverflowEvent(const AtomicString& type, const OverflowEventInit& initializer)
62    : Event(type, initializer)
63    , m_orient(initializer.orient)
64    , m_horizontalOverflow(initializer.horizontalOverflow)
65    , m_verticalOverflow(initializer.verticalOverflow)
66{
67}
68
69const AtomicString& OverflowEvent::interfaceName() const
70{
71    return EventNames::OverflowEvent;
72}
73
74void OverflowEvent::trace(Visitor* visitor)
75{
76    Event::trace(visitor);
77}
78
79}
80