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
33OverflowEvent::OverflowEvent()
34 : m_orient(VERTICAL)
35 , m_horizontalOverflow(false)
36 , m_verticalOverflow(false)
37{
38}
39
40OverflowEvent::OverflowEvent(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow)
41 : Event(eventNames().overflowchangedEvent, CanBubble::No, IsCancelable::No)
42 , m_horizontalOverflow(horizontalOverflow)
43 , m_verticalOverflow(verticalOverflow)
44{
45 ASSERT(horizontalOverflowChanged || verticalOverflowChanged);
46
47 if (horizontalOverflowChanged && verticalOverflowChanged)
48 m_orient = BOTH;
49 else if (horizontalOverflowChanged)
50 m_orient = HORIZONTAL;
51 else
52 m_orient = VERTICAL;
53}
54
55OverflowEvent::OverflowEvent(const AtomicString& type, const Init& initializer, IsTrusted isTrusted)
56 : Event(type, initializer, isTrusted)
57 , m_orient(initializer.orient)
58 , m_horizontalOverflow(initializer.horizontalOverflow)
59 , m_verticalOverflow(initializer.verticalOverflow)
60{
61}
62
63EventInterface OverflowEvent::eventInterface() const
64{
65 return OverflowEventInterfaceType;
66}
67
68void OverflowEvent::initOverflowEvent(unsigned short orient, bool horizontalOverflow, bool verticalOverflow)
69{
70 if (isBeingDispatched())
71 return;
72
73 initEvent(eventNames().overflowchangedEvent, false, false);
74
75 m_orient = orient;
76 m_horizontalOverflow = horizontalOverflow;
77 m_verticalOverflow = verticalOverflow;
78}
79
80}
81