| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtDBus module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QDBUSPENDINGREPLY_H |
| #define QDBUSPENDINGREPLY_H |
| |
| #include <QtDBus/qtdbusglobal.h> |
| #include <QtDBus/qdbusargument.h> |
| #include <QtDBus/qdbuspendingcall.h> |
| |
| #ifndef QT_NO_DBUS |
| |
| QT_BEGIN_NAMESPACE |
| |
| |
| class Q_DBUS_EXPORT QDBusPendingReplyData: public QDBusPendingCall |
| { |
| protected: |
| QDBusPendingReplyData(); |
| ~QDBusPendingReplyData(); |
| void assign(const QDBusPendingCall &call); |
| void assign(const QDBusMessage &message); |
| |
| QVariant argumentAt(int index) const; |
| void setMetaTypes(int count, const int *metaTypes); |
| }; |
| |
| namespace QDBusPendingReplyTypes { |
| template<int Index, |
| typename T1, typename T2, typename T3, typename T4, |
| typename T5, typename T6, typename T7, typename T8> |
| struct Select |
| { |
| typedef Select<Index - 1, T2, T3, T4, T5, T6, T7, T8, void> Next; |
| typedef typename Next::Type Type; |
| }; |
| template<typename T1, typename T2, typename T3, typename T4, |
| typename T5, typename T6, typename T7, typename T8> |
| struct Select<0, T1, T2, T3, T4, T5, T6, T7, T8> |
| { |
| typedef T1 Type; |
| }; |
| |
| template<typename T1> inline int metaTypeFor(T1 * = nullptr) |
| { return qMetaTypeId<T1>(); } |
| // specialize for QVariant, allowing it to be used in place of QDBusVariant |
| template<> inline int metaTypeFor<QVariant>(QVariant *) |
| { return qMetaTypeId<QDBusVariant>(); } |
| |
| template<typename T1, typename T2, typename T3, typename T4, |
| typename T5, typename T6, typename T7, typename T8> |
| struct ForEach |
| { |
| typedef ForEach<T2, T3, T4, T5, T6, T7, T8, void> Next; |
| enum { Total = Next::Total + 1 }; |
| static inline void fillMetaTypes(int *p) |
| { |
| *p = metaTypeFor<T1>(nullptr); |
| Next::fillMetaTypes(++p); |
| } |
| }; |
| template<> |
| struct ForEach<void, void, void, void, void, void, void, void> |
| { |
| enum { Total = 0 }; |
| static inline void fillMetaTypes(int *) |
| { } |
| }; |
| |
| struct TypeIsVoid {}; |
| template <typename T> struct NotVoid { typedef T Type; }; |
| template <> struct NotVoid<void> { typedef TypeIsVoid Type; }; |
| } // namespace QDBusPendingReplyTypes |
| |
| template<typename T1 = void, typename T2 = void, typename T3 = void, typename T4 = void, |
| typename T5 = void, typename T6 = void, typename T7 = void, typename T8 = void> |
| class QDBusPendingReply: |
| #ifdef Q_CLANG_QDOC |
| public QDBusPendingCall |
| #else |
| public QDBusPendingReplyData |
| #endif |
| { |
| typedef QDBusPendingReplyTypes::ForEach<T1, T2, T3, T4, T5, T6, T7, T8> ForEach; |
| template<int Index> struct Select : |
| QDBusPendingReplyTypes::Select<Index, T1, T2, T3, T4, T5, T6, T7, T8> |
| { |
| }; |
| |
| public: |
| enum { Count = ForEach::Total }; |
| |
| inline QDBusPendingReply() |
| { } |
| inline QDBusPendingReply(const QDBusPendingReply &other) |
| : QDBusPendingReplyData(other) |
| { } |
| inline /*implicit*/ QDBusPendingReply(const QDBusPendingCall &call) // required by qdbusxml2cpp-generated code |
| { *this = call; } |
| inline /*implicit*/ QDBusPendingReply(const QDBusMessage &message) |
| { *this = message; } |
| inline QDBusPendingReply &operator=(const QDBusPendingReply &other) |
| { assign(other); return *this; } |
| inline QDBusPendingReply &operator=(const QDBusPendingCall &call) |
| { assign(call); return *this; } |
| inline QDBusPendingReply &operator=(const QDBusMessage &message) |
| { assign(message); return *this; } |
| |
| inline int count() const { return Count; } |
| |
| #if defined(Q_CLANG_QDOC) |
| QVariant argumentAt(int index) const; |
| #else |
| using QDBusPendingReplyData::argumentAt; |
| #endif |
| |
| #ifndef Q_CLANG_QDOC |
| template<int Index> inline |
| const typename Select<Index>::Type argumentAt() const |
| { |
| Q_STATIC_ASSERT_X(Index >= 0 && Index < Count, "Index out of bounds"); |
| typedef typename Select<Index>::Type ResultType; |
| return qdbus_cast<ResultType>(argumentAt(Index), nullptr); |
| } |
| #endif |
| |
| #if defined(Q_CLANG_QDOC) |
| bool isFinished() const; |
| void waitForFinished(); |
| |
| bool isValid() const; |
| bool isError() const; |
| QDBusError error() const; |
| QDBusMessage reply() const; |
| |
| inline T1 value() const; |
| inline operator T1() const; |
| #else |
| inline typename Select<0>::Type value() const |
| { |
| return argumentAt<0>(); |
| } |
| |
| inline operator typename QDBusPendingReplyTypes::NotVoid<T1>::Type() const |
| { |
| return argumentAt<0>(); |
| } |
| #endif |
| |
| private: |
| inline void calculateMetaTypes() |
| { |
| if (!d) return; |
| int typeIds[Count > 0 ? Count : 1]; // use at least one since zero-sized arrays aren't valid |
| ForEach::fillMetaTypes(typeIds); |
| setMetaTypes(Count, typeIds); |
| } |
| |
| inline void assign(const QDBusPendingCall &call) |
| { |
| QDBusPendingReplyData::assign(call); |
| calculateMetaTypes(); |
| } |
| |
| inline void assign(const QDBusMessage &message) |
| { |
| QDBusPendingReplyData::assign(message); |
| calculateMetaTypes(); |
| } |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_NO_DBUS |
| #endif |