1 /*

     2  * Copyright (C) 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 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 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 

    27 #ifndef AccessibilityObjectWrapperWin_h

    28 #define AccessibilityObjectWrapperWin_h

    29 

    30 namespace WebCore {

    31 

    32     class AccessibilityObject;

    33  

    34     class AccessibilityObjectWrapper : public IUnknown {

    35     public:

    36         // IUnknown

    37         virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject) = 0;        

    38         virtual ULONG STDMETHODCALLTYPE AddRef(void) = 0;

    39         virtual ULONG STDMETHODCALLTYPE Release(void) = 0;

    40 

    41         virtual void detach() = 0;

    42         bool attached() const { return m_object; }

    43         AccessibilityObject* accessibilityObject() const { return m_object; }

    44 

    45     protected:

    46         AccessibilityObjectWrapper(AccessibilityObject* obj) : m_object(obj) { }

    47         AccessibilityObjectWrapper() : m_object(0) { }

    48 

    49         AccessibilityObject* m_object;

    50     };

    51 

    52 } // namespace WebCore

    53 

    54 #endif // AccessibilityObjectWrapperWin_h