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 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 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 "OverflowEvent.h"
28
29#include "EventNames.h"
30
31namespace WebCore {
32
33OverflowEventInit::OverflowEventInit()
34    : orient(0)
35    , horizontalOverflow(false)
36    , verticalOverflow(false)
37{
38}
39
40OverflowEvent::OverflowEvent()
41    : Event(eventNames().overflowchangedEvent, false, false)
42    , m_orient(VERTICAL)
43    , m_horizontalOverflow(false)
44    , m_verticalOverflow(false)
45{
46}
47
48OverflowEvent::OverflowEvent(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow)
49    : Event(eventNames().overflowchangedEvent, false, false)
50    , m_horizontalOverflow(horizontalOverflow)
51    , m_verticalOverflow(verticalOverflow)
52{
53    ASSERT(horizontalOverflowChanged || verticalOverflowChanged);
54
55    if (horizontalOverflowChanged && verticalOverflowChanged)
56        m_orient = BOTH;
57    else if (horizontalOverflowChanged)
58        m_orient = HORIZONTAL;
59    else
60        m_orient = VERTICAL;
61}
62
63OverflowEvent::OverflowEvent(const AtomicString& type, const OverflowEventInit& initializer)
64    : Event(type, initializer)
65    , m_orient(initializer.orient)
66    , m_horizontalOverflow(initializer.horizontalOverflow)
67    , m_verticalOverflow(initializer.verticalOverflow)
68{
69}
70
71EventInterface OverflowEvent::eventInterface() const
72{
73    return OverflowEventInterfaceType;
74}
75
76void OverflowEvent::initOverflowEvent(unsigned short orient, bool horizontalOverflow, bool verticalOverflow)
77{
78    if (dispatched())
79        return;
80
81    m_orient = orient;
82    m_horizontalOverflow = horizontalOverflow;
83    m_verticalOverflow = verticalOverflow;
84}
85
86}
87