1 /* 2 * Copyright 2006, Haiku. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * Ingo Weinhold <bonefish@cs.tu-berlin.de> 7 */ 8 9 // This class provides some basic functionality for derivation of a 10 // listener -> observer adapter. 11 // The derived class should implement constructors similar to the 12 // ones of this class and pass the respective parameter. 13 // Each of the listener hook functions should construct a message 14 // and let it be delivered by DeliverMessage(). 15 16 #ifndef ABSTRACT_LO_ADAPTER_H 17 #define ABSTRACT_LO_ADAPTER_H 18 19 #include <SupportDefs.h> 20 21 class BHandler; 22 class BLooper; 23 class BMessage; 24 class BMessenger; 25 26 class AbstractLOAdapter { 27 public: 28 AbstractLOAdapter(BHandler* handler); 29 AbstractLOAdapter(const BMessenger& messenger); 30 virtual ~AbstractLOAdapter(); 31 32 void DeliverMessage(BMessage* message); 33 void DeliverMessage(BMessage& message); 34 void DeliverMessage(uint32 command); 35 36 private: 37 BHandler* fHandler; 38 BMessenger* fMessenger; 39 }; 40 41 #endif // ABSTRACT_LO_ADAPTER_H 42