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 "OverflowEvent.h"
28
29 #include "EventNames.h"
30
31 namespace WebCore {
32
OverflowEvent()33 OverflowEvent::OverflowEvent()
34 : Event(eventNames().overflowchangedEvent, false, false)
35 , m_orient(VERTICAL)
36 , m_horizontalOverflow(false)
37 , m_verticalOverflow(false)
38 {
39 }
40
OverflowEvent(bool horizontalOverflowChanged,bool horizontalOverflow,bool verticalOverflowChanged,bool verticalOverflow)41 OverflowEvent::OverflowEvent(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow)
42 : Event(eventNames().overflowchangedEvent, false, false)
43 , m_horizontalOverflow(horizontalOverflow)
44 , m_verticalOverflow(verticalOverflow)
45 {
46 ASSERT(horizontalOverflowChanged || verticalOverflowChanged);
47
48 if (horizontalOverflowChanged && verticalOverflowChanged)
49 m_orient = BOTH;
50 else if (horizontalOverflowChanged)
51 m_orient = HORIZONTAL;
52 else
53 m_orient = VERTICAL;
54 }
55
isOverflowEvent() const56 bool OverflowEvent::isOverflowEvent() const
57 {
58 return true;
59 }
60
initOverflowEvent(unsigned short orient,bool horizontalOverflow,bool verticalOverflow)61 void OverflowEvent::initOverflowEvent(unsigned short orient, bool horizontalOverflow, bool verticalOverflow)
62 {
63 if (dispatched())
64 return;
65
66 m_orient = orient;
67 m_horizontalOverflow = horizontalOverflow;
68 m_verticalOverflow = verticalOverflow;
69 }
70
71 }
72