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      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 "core/events/Event.h"
     30 
     31 namespace WebCore {
     32 
     33 struct OverflowEventInit : public EventInit {
     34     OverflowEventInit();
     35 
     36     unsigned short orient;
     37     bool horizontalOverflow;
     38     bool verticalOverflow;
     39 };
     40 
     41 class OverflowEvent : public Event {
     42 public:
     43     enum orientType {
     44         HORIZONTAL = 0,
     45         VERTICAL   = 1,
     46         BOTH       = 2
     47     };
     48 
     49     static PassRefPtr<OverflowEvent> create()
     50     {
     51         return adoptRef(new OverflowEvent);
     52     }
     53     static PassRefPtr<OverflowEvent> create(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow)
     54     {
     55         return adoptRef(new OverflowEvent(horizontalOverflowChanged, horizontalOverflow, verticalOverflowChanged, verticalOverflow));
     56     }
     57     static PassRefPtr<OverflowEvent> create(const AtomicString& type, const OverflowEventInit& initializer)
     58     {
     59         return adoptRef(new OverflowEvent(type, initializer));
     60     }
     61 
     62     void initOverflowEvent(unsigned short orient, bool horizontalOverflow, bool verticalOverflow);
     63 
     64     unsigned short orient() const { return m_orient; }
     65     bool horizontalOverflow() const { return m_horizontalOverflow; }
     66     bool verticalOverflow() const { return m_verticalOverflow; }
     67 
     68     virtual const AtomicString& interfaceName() const;
     69 
     70 private:
     71     OverflowEvent();
     72     OverflowEvent(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow);
     73     OverflowEvent(const AtomicString&, const OverflowEventInit&);
     74 
     75     unsigned short m_orient;
     76     bool m_horizontalOverflow;
     77     bool m_verticalOverflow;
     78 };
     79 
     80 }
     81 
     82 #endif // OverflowEvent_h
     83