78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
/*
|
|
* This file is part of libgim.
|
|
*
|
|
* libgim is free software: you can redistribute it and/or modify it under the
|
|
* terms of the GNU General Public License as published by the Free Software
|
|
* Foundation, either version 3 of the License, or (at your option) any later
|
|
* version.
|
|
*
|
|
* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with libgim. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Copyright 2011-2013 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#ifndef __UTIL_SIGNAL_HPP
|
|
#define __UTIL_SIGNAL_HPP
|
|
|
|
#include "debug.hpp"
|
|
#include "nocopy.hpp"
|
|
|
|
#include <algorithm>
|
|
#include <list>
|
|
#include <functional>
|
|
|
|
namespace util {
|
|
template <typename Ret, typename ...Args>
|
|
class signal {
|
|
public:
|
|
//typedef Ret (*callback_function)(Args...);
|
|
typedef std::function<Ret(Args...)> callback_object;
|
|
|
|
protected:
|
|
typedef std::list<callback_object> group;
|
|
group m_children;
|
|
|
|
public:
|
|
typedef typename group::iterator cookie;
|
|
struct scoped_cookie : public nocopy {
|
|
cookie m_cookie;
|
|
signal<Ret, Args...>& m_parent;
|
|
|
|
scoped_cookie (cookie _cookie, signal<Ret, Args...> &_parent);
|
|
scoped_cookie (scoped_cookie &&rhs);
|
|
~scoped_cookie ();
|
|
|
|
void renew (callback_object &&cb);
|
|
void release (void);
|
|
};
|
|
|
|
public:
|
|
signal ();
|
|
|
|
/// Add a callback to list.
|
|
cookie connect (const callback_object &_cb);
|
|
scoped_cookie scoped_connect (const callback_object &_cb);
|
|
|
|
void disconnect (const cookie _cb);
|
|
/// Disconnect all callbacks
|
|
void clear (void);
|
|
|
|
/// Returns the number of callbacks connected.
|
|
unsigned int size (void) const;
|
|
bool empty (void) const;
|
|
|
|
/// Execute all callbacks, ignoring the return parameters. Does not combine results.
|
|
void operator () (Args... tail);
|
|
};
|
|
}
|
|
|
|
#include "signal.ipp"
|
|
|
|
#endif // __SIGNAL_HPP
|