1 /*

     2  * Copyright (C) 2006, 2007, 2008 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 #ifndef OverflowEvent_h

    27 #define OverflowEvent_h

    28 

    29 #include "Event.h"

    30 

    31 namespace WebCore {

    32     

    33     class OverflowEvent : public Event {

    34     public:

    35         enum orientType {

    36             VERTICAL   = 0,

    37             HORIZONTAL = 1,

    38             BOTH       = 2

    39         };

    40 

    41         static PassRefPtr<OverflowEvent> create()

    42         {

    43             return adoptRef(new OverflowEvent);

    44         }

    45         static PassRefPtr<OverflowEvent> create(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow)

    46         {

    47             return adoptRef(new OverflowEvent(horizontalOverflowChanged, horizontalOverflow, verticalOverflowChanged, verticalOverflow));

    48         }

    49 

    50         void initOverflowEvent(unsigned short orient, bool horizontalOverflow, bool verticalOverflow);

    51 

    52         unsigned short orient() const { return m_orient; }

    53         bool horizontalOverflow() const { return m_horizontalOverflow; }

    54         bool verticalOverflow() const { return m_verticalOverflow; }

    55 

    56         virtual bool isOverflowEvent() const;

    57         

    58     private:

    59         OverflowEvent();

    60         OverflowEvent(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow);

    61 

    62         unsigned short m_orient;

    63         bool m_horizontalOverflow;

    64         bool m_verticalOverflow;

    65     };

    66 }

    67 

    68 #endif // OverflowEvent_h

    69