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C/C++ Source or Header  |  1998-04-08  |  1.7 KB  |  50 lines
  1. /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
  2.  *
  3.  * The contents of this file are subject to the Netscape Public License
  4.  * Version 1.0 (the "NPL"); you may not use this file except in
  5.  * compliance with the NPL.  You may obtain a copy of the NPL at
  6.  * http://www.mozilla.org/NPL/
  7.  *
  8.  * Software distributed under the NPL is distributed on an "AS IS" basis,
  9.  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
  10.  * for the specific language governing rights and limitations under the
  11.  * NPL.
  12.  *
  13.  * The Initial Developer of this code under the NPL is Netscape
  14.  * Communications Corporation.  Portions created by Netscape are
  15.  * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
  16.  * Reserved.
  17.  */
  18.  
  19. // StSetBroadcasting
  20.  
  21. class StSetBroadcasting {
  22.  
  23. public:
  24.  
  25.                         StSetBroadcasting(LBroadcaster *inBroadcaster, Boolean inSetIsBroadcasting) {
  26.                             Assert_(inBroadcaster != nil);
  27.                             mBroadcaster = inBroadcaster;
  28.                             mWasBroadcasting = inBroadcaster->IsBroadcasting();
  29.                             SetBroadcasting(inSetIsBroadcasting);
  30.                         }
  31.                         ~StSetBroadcasting(void) {
  32.                             SetBroadcasting(mWasBroadcasting);
  33.                         }
  34.     void                SetBroadcasting(Boolean inSetIsBroadcasting) {
  35.                             Boolean isBroadcasting = mBroadcaster->IsBroadcasting();
  36.                             if ( inSetIsBroadcasting && !isBroadcasting ) {
  37.                                 mBroadcaster->StartBroadcasting();
  38.                             } else if ( !inSetIsBroadcasting && isBroadcasting ) {
  39.                                 mBroadcaster->StopBroadcasting();
  40.                             }
  41.                         }
  42.                         
  43. protected:
  44.     
  45.     // Instance variables ==========================================================
  46.  
  47.     Boolean                 mWasBroadcasting;
  48.     LBroadcaster         *mBroadcaster;
  49. };
  50.