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Dogcows Code - chaz/yoink/blob - src/Moof/Dispatcher.hh
2 /*******************************************************************************
4 Copyright (c) 2009, Charles McGarvey
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 * Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
12 * Redistributions in binary form must reproduce the above copyright notice,
13 this list of conditions and the following disclaimer in the documentation
14 and/or other materials provided with the distribution.
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
20 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *******************************************************************************/
29 #ifndef _MOOF_DISPATCHER_HH_
30 #define _MOOF_DISPATCHER_HH_
34 #include <boost/bind.hpp>
35 #include <boost/function.hpp>
36 #include <boost/shared_ptr.hpp>
43 * Interface for a notification class.
49 virtual ~Notification() {};
54 * Dispatcher of notifications to interested parties.
60 boost::shared_ptr
<Impl
> mImpl
;
64 // TODO - the Handler would be even better as an object which automagically
65 // removes itself from the dispatcher on destruction, so users don't have to
66 // worry about forgetting
67 typedef void* Handler
;
68 typedef boost::function
<void(const Notification
*)> Function
;
73 // get global instance
74 static Dispatcher
& getInstance();
76 Handler
addHandler(const std::string
& message
, const Function
& callback
);
77 Handler
addHandler(const std::string
& message
, const Function
& callback
,
80 void removeHandler(Handler id
);
82 void dispatch(const std::string
& message
, const Notification
* param
= 0);
86 namespace dispatcher
{
88 inline Dispatcher::Handler
addHandler(const std::string
& message
,
89 const Dispatcher::Function
& callback
)
91 return Dispatcher::getInstance().addHandler(message
, callback
);
94 inline Dispatcher::Handler
addHandler(const std::string
& message
,
95 const Dispatcher::Function
& callback
, Dispatcher::Handler id
)
97 return Dispatcher::getInstance().addHandler(message
, callback
, id
);
100 inline void removeHandler(Dispatcher::Handler id
)
102 Dispatcher::getInstance().removeHandler(id
);
105 inline void dispatch(const std::string
& message
, const Notification
* param
= 0)
107 Dispatcher::getInstance().dispatch(message
, param
);
110 } // namespace dispatcher
115 #endif // _MOOF_DISPATCHER_HH_
117 /** vim: set ts=4 sw=4 tw=80: *************************************************/
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