dll/win32/browseui/newatlinterfaces.h

   1 /*
   2  * ReactOS Explorer
   3  *
   4  * Copyright 2009 Andrew Hill <ash77 at domain reactos.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #pragma once
  22
  23 template<class T>
  24 class IProfferServiceImpl : public IProfferService
  25 {
  26 public:
  27     STDMETHODIMP ProfferService(REFGUID rguidService, IServiceProvider *psp, DWORD *pdwCookie)
  28     {
  29         return E_NOTIMPL;
  30     }
  31
  32     STDMETHODIMP RevokeService(DWORD dwCookie)
  33     {
  34         return E_NOTIMPL;
  35     }
  36
  37     HRESULT QueryService(REFGUID guidService, REFIID riid, void **ppvObject)
  38     {
  39         return E_FAIL;
  40     }
  41 };
  42
  43 /*
  44 This subclass corrects a problem with the ATL IConnectionPointImpl.
  45 IConnectionPointImpl queries for the exact interface that is published, but at least one
  46 implementor of IConnectionPoint (CShellBrowser) advertises DIID_DWebBrowserEvents,
  47 but fires events to IDispatch.
  48 */
  49 template<class T, const IID *piid, class CDV = CComDynamicUnkArray>
  50 class MyIConnectionPointImpl : public IConnectionPointImpl<T, piid, CDV>
  51 {
  52 public:
  53     STDMETHODIMP Advise(IUnknown *pUnkSink, DWORD *pdwCookie)
  54     {
  55         IConnectionPointImpl<T, piid, CDV>  *pThisCPImpl;
  56         T                                   *pThis;
  57         IUnknown                            *adviseSink;
  58         DWORD                               newCookie;
  59         HRESULT                             hResult;
  60
  61         pThis = static_cast<T *>(this);
  62         pThisCPImpl = static_cast<IConnectionPointImpl<T, piid, CDV> *>(this);
  63         if (pdwCookie != NULL)
  64             *pdwCookie = 0;
  65         if (pUnkSink == NULL || pdwCookie == NULL)
  66             return E_POINTER;
  67         hResult = pUnkSink->QueryInterface(IID_IDispatch, reinterpret_cast<void **>(&adviseSink));
  68         if (FAILED(hResult))
  69         {
  70             if (hResult == E_NOINTERFACE)
  71                 return CONNECT_E_CANNOTCONNECT;
  72             return hResult;
  73         }
  74         pThis->Lock();
  75         newCookie = pThisCPImpl->m_vec.Add(adviseSink);
  76         pThis->Unlock();
  77         *pdwCookie = newCookie;
  78         if (newCookie != 0)
  79             hResult = S_OK;
  80         else
  81         {
  82             adviseSink->Release();
  83             hResult = CONNECT_E_ADVISELIMIT;
  84         }
  85         return hResult;
  86     }
  87 };