1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). |
4 | ** Contact: http://www.qt-project.org/legal |
5 | ** |
6 | ** This file is part of the QtDBus module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL$ |
9 | ** Commercial License Usage |
10 | ** Licensees holding valid commercial Qt licenses may use this file in |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and Digia. For licensing terms and |
14 | ** conditions see http://qt.digia.com/licensing. For further information |
15 | ** use the contact form at http://qt.digia.com/contact-us. |
16 | ** |
17 | ** GNU Lesser General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
19 | ** General Public License version 2.1 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPL included in the |
21 | ** packaging of this file. Please review the following information to |
22 | ** ensure the GNU Lesser General Public License version 2.1 requirements |
23 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
24 | ** |
25 | ** In addition, as a special exception, Digia gives you certain additional |
26 | ** rights. These rights are described in the Digia Qt LGPL Exception |
27 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
28 | ** |
29 | ** GNU General Public License Usage |
30 | ** Alternatively, this file may be used under the terms of the GNU |
31 | ** General Public License version 3.0 as published by the Free Software |
32 | ** Foundation and appearing in the file LICENSE.GPL included in the |
33 | ** packaging of this file. Please review the following information to |
34 | ** ensure the GNU General Public License version 3.0 requirements will be |
35 | ** met: http://www.gnu.org/copyleft/gpl.html. |
36 | ** |
37 | ** |
38 | ** $QT_END_LICENSE$ |
39 | ** |
40 | ****************************************************************************/ |
41 | |
42 | #ifndef QDBUSREPLY_H |
43 | #define QDBUSREPLY_H |
44 | |
45 | #include <QtCore/qglobal.h> |
46 | #include <QtCore/qvariant.h> |
47 | |
48 | #include <QtDBus/qdbusmacros.h> |
49 | #include <QtDBus/qdbusmessage.h> |
50 | #include <QtDBus/qdbuserror.h> |
51 | #include <QtDBus/qdbusextratypes.h> |
52 | #include <QtDBus/qdbuspendingreply.h> |
53 | |
54 | #ifndef QT_NO_DBUS |
55 | |
56 | QT_BEGIN_HEADER |
57 | |
58 | QT_BEGIN_NAMESPACE |
59 | |
60 | QT_MODULE(DBus) |
61 | |
62 | Q_DBUS_EXPORT void qDBusReplyFill(const QDBusMessage &reply, QDBusError &error, QVariant &data); |
63 | |
64 | template<typename T> |
65 | class QDBusReply |
66 | { |
67 | typedef T Type; |
68 | public: |
69 | inline QDBusReply(const QDBusMessage &reply) |
70 | { |
71 | *this = reply; |
72 | } |
73 | inline QDBusReply& operator=(const QDBusMessage &reply) |
74 | { |
75 | QVariant data(qMetaTypeId(&m_data), reinterpret_cast<void*>(0)); |
76 | qDBusReplyFill(reply, m_error, data); |
77 | m_data = qvariant_cast<Type>(data); |
78 | return *this; |
79 | } |
80 | |
81 | inline QDBusReply(const QDBusPendingCall &pcall) |
82 | { |
83 | *this = pcall; |
84 | } |
85 | inline QDBusReply &operator=(const QDBusPendingCall &pcall) |
86 | { |
87 | QDBusPendingCall other(pcall); |
88 | other.waitForFinished(); |
89 | return *this = other.reply(); |
90 | } |
91 | inline QDBusReply(const QDBusPendingReply<T> &reply) |
92 | { |
93 | *this = static_cast<QDBusPendingCall>(reply); |
94 | } |
95 | |
96 | inline QDBusReply(const QDBusError &dbusError = QDBusError()) |
97 | : m_error(dbusError), m_data(Type()) |
98 | { |
99 | } |
100 | inline QDBusReply& operator=(const QDBusError& dbusError) |
101 | { |
102 | m_error = dbusError; |
103 | m_data = Type(); |
104 | return *this; |
105 | } |
106 | |
107 | inline QDBusReply& operator=(const QDBusReply& other) |
108 | { |
109 | m_error = other.m_error; |
110 | m_data = other.m_data; |
111 | return *this; |
112 | } |
113 | |
114 | inline bool isValid() const { return !m_error.isValid(); } |
115 | |
116 | inline const QDBusError& error() { return m_error; } |
117 | |
118 | inline Type value() const |
119 | { |
120 | return m_data; |
121 | } |
122 | |
123 | inline operator Type () const |
124 | { |
125 | return m_data; |
126 | } |
127 | |
128 | private: |
129 | QDBusError m_error; |
130 | Type m_data; |
131 | }; |
132 | |
133 | # ifndef Q_QDOC |
134 | // specialize for QVariant: |
135 | template<> inline QDBusReply<QVariant>& |
136 | QDBusReply<QVariant>::operator=(const QDBusMessage &reply) |
137 | { |
138 | void *null = 0; |
139 | QVariant data(qMetaTypeId<QDBusVariant>(), null); |
140 | qDBusReplyFill(reply, m_error, data); |
141 | m_data = qvariant_cast<QDBusVariant>(data).variant(); |
142 | return *this; |
143 | } |
144 | |
145 | // specialize for void: |
146 | template<> |
147 | class QDBusReply<void> |
148 | { |
149 | public: |
150 | inline QDBusReply(const QDBusMessage &reply) |
151 | : m_error(reply) |
152 | { |
153 | } |
154 | inline QDBusReply& operator=(const QDBusMessage &reply) |
155 | { |
156 | m_error = reply; |
157 | return *this; |
158 | } |
159 | inline QDBusReply(const QDBusError &dbusError = QDBusError()) |
160 | : m_error(dbusError) |
161 | { |
162 | } |
163 | inline QDBusReply(const QDBusPendingCall &pcall) |
164 | { |
165 | *this = pcall; |
166 | } |
167 | inline QDBusReply &operator=(const QDBusPendingCall &pcall) |
168 | { |
169 | QDBusPendingCall other(pcall); |
170 | other.waitForFinished(); |
171 | return *this = other.reply(); |
172 | } |
173 | inline QDBusReply& operator=(const QDBusError& dbusError) |
174 | { |
175 | m_error = dbusError; |
176 | return *this; |
177 | } |
178 | |
179 | inline QDBusReply& operator=(const QDBusReply& other) |
180 | { |
181 | m_error = other.m_error; |
182 | return *this; |
183 | } |
184 | |
185 | inline bool isValid() const { return !m_error.isValid(); } |
186 | |
187 | inline const QDBusError& error() { return m_error; } |
188 | |
189 | private: |
190 | QDBusError m_error; |
191 | }; |
192 | # endif |
193 | |
194 | QT_END_NAMESPACE |
195 | |
196 | QT_END_HEADER |
197 | |
198 | #endif // QT_NO_DBUS |
199 | #endif |
200 | |