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      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 "core/events/OverflowEvent.h"
     28 
     29 namespace blink {
     30 
     31 OverflowEventInit::OverflowEventInit()
     32     : orient(0)
     33     , horizontalOverflow(false)
     34     , verticalOverflow(false)
     35 {
     36 }
     37 
     38 OverflowEvent::OverflowEvent()
     39     : Event(EventTypeNames::overflowchanged, false, false)
     40     , m_orient(VERTICAL)
     41     , m_horizontalOverflow(false)
     42     , m_verticalOverflow(false)
     43 {
     44 }
     45 
     46 OverflowEvent::OverflowEvent(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow)
     47     : Event(EventTypeNames::overflowchanged, false, false)
     48     , m_horizontalOverflow(horizontalOverflow)
     49     , m_verticalOverflow(verticalOverflow)
     50 {
     51     ASSERT(horizontalOverflowChanged || verticalOverflowChanged);
     52 
     53     if (horizontalOverflowChanged && verticalOverflowChanged)
     54         m_orient = BOTH;
     55     else if (horizontalOverflowChanged)
     56         m_orient = HORIZONTAL;
     57     else
     58         m_orient = VERTICAL;
     59 }
     60 
     61 OverflowEvent::OverflowEvent(const AtomicString& type, const OverflowEventInit& initializer)
     62     : Event(type, initializer)
     63     , m_orient(initializer.orient)
     64     , m_horizontalOverflow(initializer.horizontalOverflow)
     65     , m_verticalOverflow(initializer.verticalOverflow)
     66 {
     67 }
     68 
     69 const AtomicString& OverflowEvent::interfaceName() const
     70 {
     71     return EventNames::OverflowEvent;
     72 }
     73 
     74 void OverflowEvent::trace(Visitor* visitor)
     75 {
     76     Event::trace(visitor);
     77 }
     78 
     79 }
     80