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      1 /*
      2  * Copyright (C) 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  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include "config.h"
     30 #include "GEN_DOMObject.h"
     31 
     32 #include "WebKitDLL.h"
     33 
     34 #include <wtf/Assertions.h>
     35 
     36 // DOMObject ------------------------------------------------------------
     37 
     38 GEN_DOMObject::GEN_DOMObject()
     39     : m_refCount(0)
     40 {
     41     gClassCount++;
     42     gClassNameCount.add("GEN_DOMObject");
     43 }
     44 
     45 GEN_DOMObject::~GEN_DOMObject()
     46 {
     47     gClassCount--;
     48     gClassNameCount.remove("GEN_DOMObject");
     49 }
     50 
     51 // IUnknown -------------------------------------------------------------------
     52 
     53 HRESULT STDMETHODCALLTYPE GEN_DOMObject::QueryInterface(REFIID riid, void** ppvObject)
     54 {
     55     *ppvObject = 0;
     56     if (IsEqualGUID(riid, IID_IUnknown))
     57         *ppvObject = static_cast<IGEN_DOMObject*>(this);
     58     else if (IsEqualGUID(riid, IID_IGEN_DOMObject))
     59         *ppvObject = static_cast<GEN_DOMObject*>(this);
     60     else
     61         return E_NOINTERFACE;
     62 
     63     AddRef();
     64     return S_OK;
     65 }
     66 
     67 ULONG STDMETHODCALLTYPE GEN_DOMObject::AddRef()
     68 {
     69     return ++m_refCount;
     70 }
     71 
     72 ULONG STDMETHODCALLTYPE GEN_DOMObject::Release()
     73 {
     74     ULONG newRef = --m_refCount;
     75     if (!newRef)
     76         delete this;
     77 
     78     return newRef;
     79 }
     80