text: /*
   * Outlook Integration library.
   *
   * Copyright (c) 2016, Ixperta Solutions s.r.o.
   *
   * This work is based on
   * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
   *
   * Copyright @ 2015 Atlassian Pty Ltd
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  #ifndef _JMSOFFICECOMM_WEAKREFERENCE_H_
  #define _JMSOFFICECOMM_WEAKREFERENCE_H_
  
  #include "UnknownImpl.h"
  
  class WeakReference
      : public UnknownImpl<IWeakReference, IID_IWeakReference>
  {
  public:
      WeakReference(LPUNKNOWN iUnknown) : _iUnknown(iUnknown) {}
  
      // IUnknown
      STDMETHODIMP QueryInterface(REFIID, PVOID *);
  
      // IWeakReference
      STDMETHODIMP Resolve(REFIID, PVOID *);
  
      void invalidate() { _iUnknown = NULL; }
  
  protected:
      virtual ~WeakReference() {}
  
  private:
      LPUNKNOWN _iUnknown;
  };
  
  #endif /* #ifndef _JMSOFFICECOMM_WEAKREFERENCE_H_ */
  