/usr/include/Unity-6.0/UnityCore/GLibSignal.h is in libunity-core-6.0-dev 7.2.0+14.04.20140416-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | // -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/*
* Copyright (C) 2011-2012 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Neil Jagdish Patel <neil.patel@canonical.com>
* Marco Trevisan <marco.trevisan@canonical.com>
*/
#ifndef UNITY_GLIB_SIGNAL_H
#define UNITY_GLIB_SIGNAL_H
#include <string>
#include <vector>
#include <memory>
#include <boost/noncopyable.hpp>
#include <glib-object.h>
namespace unity
{
namespace glib
{
class SignalBase : boost::noncopyable
{
public:
typedef std::shared_ptr<SignalBase> Ptr;
virtual ~SignalBase();
void Disconnect();
GObject* object() const;
std::string const& name() const;
protected:
SignalBase();
GObject* object_;
guint32 connection_id_;
std::string name_;
};
template <typename R, typename G, typename... Ts>
class Signal : public SignalBase
{
public:
/* Versions of GCC prior to 4.7 doesn't support the Ts... expansion, we can
* workaround this issue using the trick below.
* See GCC bug http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35722 */
#if !defined(__GNUC__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 7)
typedef std::function<R(G, Ts...)> SignalCallback;
#else
template<template <typename...> class T, typename... params>
struct expand_variadic {
typedef T<params...> type;
};
typedef typename expand_variadic<std::function, R(G, Ts...)>::type SignalCallback;
#endif
inline Signal() {};
inline Signal(G object, std::string const& signal_name, SignalCallback const& callback);
inline void Connect(G Object, std::string const& signal_name, SignalCallback const& callback);
private:
static R Callback(G Object, Ts... vs, Signal* self);
SignalCallback callback_;
};
class SignalManager : boost::noncopyable
{
public:
SignalManager();
~SignalManager();
void Add(SignalBase* signal);
void Add(SignalBase::Ptr const& signal);
template <typename R, typename G, typename... Ts>
void Add(G object, std::string const& signal_name, typename Signal<R, G, Ts...>::SignalCallback const& callback)
{
Add(std::make_shared<Signal<R, G, Ts...>>(object, signal_name, callback));
}
void Disconnect(void* object, std::string const& signal_name = "");
private:
static void OnObjectDestroyed(SignalManager* self, GObject* old_obj);
protected:
std::vector<SignalBase::Ptr> connections_;
};
}
}
#include "GLibSignal-inl.h"
#endif
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