File indexing completed on 2025-01-26 05:06:09

 /*
     SPDX-FileCopyrightText: 2013-2016 Ivan Cukic <ivan.cukic(at)kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 
 #ifndef ACTIVITIES_DBUSFUTURE_P_H
 #define ACTIVITIES_DBUSFUTURE_P_H
 
 #include <QDBusAbstractInterface>
 #include <QDBusPendingCallWatcher>
 #include <QDBusPendingReply>
 #include <QDBusServiceWatcher>
 #include <QFuture>
 #include <QFutureInterface>
 #include <QFutureWatcherBase>
 
 #include "debug_p.h"
 
 namespace DBusFuture
 {
 namespace detail
 { //_
 
 template<typename _Result>
 class DBusCallFutureInterface : public QObject, public QFutureInterface<_Result>
 {
 public:
     DBusCallFutureInterface(QDBusPendingReply<_Result> reply)
         : reply(reply)
         , replyWatcher(nullptr)
     {
     }
 
     ~DBusCallFutureInterface() override
     {
         delete replyWatcher;
     }
 
     void callFinished();
 
     QFuture<_Result> start()
     {
         replyWatcher = new QDBusPendingCallWatcher(reply);
 
         QObject::connect(replyWatcher, &QDBusPendingCallWatcher::finished, [this]() {
             callFinished();
         });
 
         this->reportStarted();
 
         if (reply.isFinished()) {
             this->callFinished();
         }
 
         return this->future();
     }
 
 private:
     QDBusPendingReply<_Result> reply;
     QDBusPendingCallWatcher *replyWatcher;
 };
 
 template<typename _Result>
 void DBusCallFutureInterface<_Result>::callFinished()
 {
     deleteLater();
 
     if (!reply.isError()) {
         this->reportResult(reply.value());
     }
 
     this->reportFinished();
 }
 
 template<>
 void DBusCallFutureInterface<void>::callFinished();
 
 template<typename _Result>
 class ValueFutureInterface : public QObject, QFutureInterface<_Result>
 {
 public:
     ValueFutureInterface(const _Result &value)
         : value(value)
     {
     }
 
     QFuture<_Result> start()
     {
         auto future = this->future();
 
         this->reportResult(value);
         this->reportFinished();
 
         deleteLater();
 
         return future;
     }
 
 private:
     _Result value;
 };
 
 template<>
 class ValueFutureInterface<void> : public QObject, QFutureInterface<void>
 {
 public:
     ValueFutureInterface();
 
     QFuture<void> start();
     // {
     //     auto future = this->future();
     //     this->reportFinished();
     //     deleteLater();
     //     return future;
     // }
 };
 
 } //^ namespace detail
 
 template<typename _Result, typename... Args>
 QFuture<_Result> asyncCall(QDBusAbstractInterface *interface, const QString &method, Args &&...args)
 {
     using namespace detail;
 
     auto callFutureInterface = new DBusCallFutureInterface<_Result>(interface->asyncCall(method, std::forward<Args>(args)...));
 
     return callFutureInterface->start();
 }
 
 template<typename _Result>
 QFuture<_Result> fromValue(const _Result &value)
 {
     using namespace detail;
 
     auto valueFutureInterface = new ValueFutureInterface<_Result>(value);
 
     return valueFutureInterface->start();
 }
 
 template<typename _Result>
 QFuture<_Result> fromReply(const QDBusPendingReply<_Result> &reply)
 {
     using namespace detail;
 
     auto callFutureInterface = new DBusCallFutureInterface<_Result>(reply);
 
     return callFutureInterface->start();
 }
 
 QFuture<void> fromVoid();
 
 } // namespace DBusFuture
 
 #endif /* ACTIVITIES_DBUSFUTURE_P_H */