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 #ifndef WebNotificationCenter_H

    27 #define WebNotificationCenter_H

    28 

    29 #include "IWebNotificationCenter.h"

    30 

    31 struct WebNotificationCenterPrivate;

    32 

    33 class WebNotificationCenter : public IWebNotificationCenter

    34 {

    35 public:

    36     static WebNotificationCenter* createInstance();

    37 protected:

    38     WebNotificationCenter();

    39     ~WebNotificationCenter();

    40 

    41 public:

    42     // IUnknown

    43     virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);

    44     virtual ULONG STDMETHODCALLTYPE AddRef(void);

    45     virtual ULONG STDMETHODCALLTYPE Release(void);

    46 

    47     // IWebNotificationCenter

    48     virtual HRESULT STDMETHODCALLTYPE defaultCenter( 

    49         /* [retval][out] */ IWebNotificationCenter **center);

    50     

    51     virtual HRESULT STDMETHODCALLTYPE addObserver( 

    52         /* [in] */ IWebNotificationObserver *observer,

    53         /* [in] */ BSTR notificationName,

    54         /* [in] */ IUnknown *anObject);

    55     

    56     virtual HRESULT STDMETHODCALLTYPE postNotification( 

    57         /* [in] */ IWebNotification *notification);

    58     

    59     virtual HRESULT STDMETHODCALLTYPE postNotificationName( 

    60         /* [in] */ BSTR notificationName,

    61         /* [in] */ IUnknown *anObject,

    62         /* [optional][in] */ IPropertyBag *userInfo);

    63     

    64     virtual HRESULT STDMETHODCALLTYPE removeObserver( 

    65         /* [in] */ IWebNotificationObserver *anObserver,

    66         /* [in] */ BSTR notificationName,

    67         /* [optional][in] */ IUnknown *anObject);

    68 

    69     // WebNotificationCenter

    70     static IWebNotificationCenter* defaultCenterInternal();

    71     void postNotificationInternal(IWebNotification* notification, BSTR notificationName, IUnknown* anObject);

    72 

    73 protected:

    74     ULONG m_refCount;

    75     WebNotificationCenterPrivate* d;

    76     static IWebNotificationCenter* m_defaultCenter;

    77 };

    78 

    79 #endif