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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 #include "core/events/ThreadLocalEventNames.h"
     30 
     31 namespace WebCore {
     32 
     33 OverflowEventInit::OverflowEventInit()
     34     : orient(0)
     35     , horizontalOverflow(false)
     36     , verticalOverflow(false)
     37 {
     38 }
     39 
     40 OverflowEvent::OverflowEvent()
     41     : Event(EventTypeNames::overflowchanged, false, false)
     42     , m_orient(VERTICAL)
     43     , m_horizontalOverflow(false)
     44     , m_verticalOverflow(false)
     45 {
     46     ScriptWrappable::init(this);
     47 }
     48 
     49 OverflowEvent::OverflowEvent(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow)
     50     : Event(EventTypeNames::overflowchanged, false, false)
     51     , m_horizontalOverflow(horizontalOverflow)
     52     , m_verticalOverflow(verticalOverflow)
     53 {
     54     ASSERT(horizontalOverflowChanged || verticalOverflowChanged);
     55     ScriptWrappable::init(this);
     56 
     57     if (horizontalOverflowChanged && verticalOverflowChanged)
     58         m_orient = BOTH;
     59     else if (horizontalOverflowChanged)
     60         m_orient = HORIZONTAL;
     61     else
     62         m_orient = VERTICAL;
     63 }
     64 
     65 OverflowEvent::OverflowEvent(const AtomicString& type, const OverflowEventInit& initializer)
     66     : Event(type, initializer)
     67     , m_orient(initializer.orient)
     68     , m_horizontalOverflow(initializer.horizontalOverflow)
     69     , m_verticalOverflow(initializer.verticalOverflow)
     70 {
     71     ScriptWrappable::init(this);
     72 }
     73 
     74 const AtomicString& OverflowEvent::interfaceName() const
     75 {
     76     return EventNames::OverflowEvent;
     77 }
     78 
     79 void OverflowEvent::initOverflowEvent(unsigned short orient, bool horizontalOverflow, bool verticalOverflow)
     80 {
     81     if (dispatched())
     82         return;
     83 
     84     m_orient = orient;
     85     m_horizontalOverflow = horizontalOverflow;
     86     m_verticalOverflow = verticalOverflow;
     87 }
     88 
     89 }
     90