src/main/monoapplication.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2020 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
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  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
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  20
  21 #include "monoapplication.h"
  22
  23 #include "client.h"
  24 #include "core.h"
  25 #include "coreapplication.h"
  26 #include "internalpeer.h"
  27 #include "qtui.h"
  28
  29 class InternalPeer;
  30
  31 MonolithicApplication::MonolithicApplication(int& argc, char** argv)
  32     : QtUiApplication(argc, argv)
  33 {
  34 #if QT_VERSION >= 0x050700
  35     QGuiApplication::setDesktopFileName(Quassel::buildInfo().applicationName);
  36 #endif
  37 }
  38
  39 void MonolithicApplication::init()
  40 {
  41     QtUiApplication::init();
  42
  43     connect(Client::coreConnection(), &CoreConnection::connectToInternalCore, this, &MonolithicApplication::onConnectionRequest);
  44
  45     // If port is set, start internal core directly so external clients can connect
  46     // This is useful in case the mono client re-gains remote connection capability,
  47     // in which case the internal core would not have to be started by default.
  48     if (Quassel::isOptionSet("port")) {
  49         startInternalCore();
  50     }
  51 }
  52
  53 Quassel::QuitHandler MonolithicApplication::quitHandler()
  54 {
  55     return [this]() {
  56         qInfo() << "Client shutting down...";
  57         connect(_client.get(), &QObject::destroyed, this, &MonolithicApplication::onClientDestroyed);
  58         _client.release()->deleteLater();
  59     };
  60 }
  61
  62 void MonolithicApplication::onClientDestroyed()
  63 {
  64     if (_core) {
  65         connect(_core, &Core::shutdownComplete, this, &MonolithicApplication::onCoreShutdown);
  66         _core->shutdown();
  67     }
  68     else {
  69         QCoreApplication::quit();
  70     }
  71 }
  72
  73 void MonolithicApplication::onCoreShutdown()
  74 {
  75     if (_core) {
  76         connect(_core, &QObject::destroyed, QCoreApplication::instance(), &QCoreApplication::quit);
  77         _coreThread.quit();
  78         _coreThread.wait();
  79     }
  80     else {
  81         QCoreApplication::quit();
  82     }
  83 }
  84
  85 void MonolithicApplication::startInternalCore()
  86 {
  87     if (_core) {
  88         // Already started
  89         return;
  90     }
  91
  92     // Start internal core in a separate thread, so it doesn't block the UI
  93     _core = new Core{};
  94     _core->moveToThread(&_coreThread);
  95     connect(&_coreThread, &QThread::started, _core.data(), &Core::initAsync);
  96     connect(&_coreThread, &QThread::finished, _core.data(), &QObject::deleteLater);
  97
  98     connect(this, &MonolithicApplication::connectInternalPeer, _core, &Core::connectInternalPeer);
  99     connect(_core, &Core::sessionStateReceived, Client::coreConnection(), &CoreConnection::internalSessionStateReceived);
 100
 101     connect(_core.data(), &Core::dbUpgradeInProgress, Client::instance(), &Client::onDbUpgradeInProgress);
 102     connect(_core.data(), &Core::exitRequested, Client::instance(), &Client::onExitRequested);
 103
 104     _coreThread.start();
 105 }
 106
 107 void MonolithicApplication::onConnectionRequest(QPointer<InternalPeer> peer)
 108 {
 109     if (!_core) {
 110         startInternalCore();
 111     }
 112
 113     // While starting the core may take a while, the object itself is instantiated synchronously and the connections
 114     // established, so it's safe to emit this immediately. The core will take care of queueing the request until
 115     // initialization is complete.
 116     emit connectInternalPeer(peer);
 117 }