diff --git a/src/client/connection_thread.cpp b/src/client/connection_thread.cpp index adc252c..1b25dc8 100644 --- a/src/client/connection_thread.cpp +++ b/src/client/connection_thread.cpp @@ -1,247 +1,258 @@ /******************************************************************** Copyright 2014 Martin Gräßlin This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) version 3, or any later version accepted by the membership of KDE e.V. (or its successor approved by the membership of KDE e.V.), which shall act as a proxy defined in Section 6 of version 3 of the license. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library. If not, see . *********************************************************************/ #include "connection_thread.h" #include "logging_p.h" // Qt #include #include #include #include #include #include #include // Wayland #include namespace KWayland { namespace Client { class ConnectionThread::Private { public: Private(ConnectionThread *q); ~Private(); void doInitConnection(); void setupSocketNotifier(); void setupSocketFileWatcher(); wl_display *display = nullptr; int fd = -1; QString socketName; QDir runtimeDir; QScopedPointer socketNotifier; QScopedPointer socketWatcher; bool serverDied = false; bool foreign = false; private: ConnectionThread *q; }; ConnectionThread::Private::Private(ConnectionThread *q) : socketName(QString::fromUtf8(qgetenv("WAYLAND_DISPLAY"))) , runtimeDir(QString::fromUtf8(qgetenv("XDG_RUNTIME_DIR"))) , q(q) { if (socketName.isEmpty()) { socketName = QStringLiteral("wayland-0"); } } ConnectionThread::Private::~Private() { if (display && !foreign) { wl_display_flush(display); wl_display_disconnect(display); } } void ConnectionThread::Private::doInitConnection() { if (fd != -1) { display = wl_display_connect_to_fd(fd); } else { display = wl_display_connect(socketName.toUtf8().constData()); } if (!display) { qCWarning(KWAYLAND_CLIENT) << "Failed connecting to Wayland display"; emit q->failed(); return; } if (fd != -1) { qCDebug(KWAYLAND_CLIENT) << "Connected to Wayland server over file descriptor:" << fd; } else { qCDebug(KWAYLAND_CLIENT) << "Connected to Wayland server at:" << socketName; } // setup socket notifier setupSocketNotifier(); setupSocketFileWatcher(); emit q->connected(); } void ConnectionThread::Private::setupSocketNotifier() { const int fd = wl_display_get_fd(display); socketNotifier.reset(new QSocketNotifier(fd, QSocketNotifier::Read)); QObject::connect(socketNotifier.data(), &QSocketNotifier::activated, q, [this]() { if (!display) { return; } wl_display_dispatch(display); emit q->eventsRead(); } ); } void ConnectionThread::Private::setupSocketFileWatcher() { if (!runtimeDir.exists() || fd != -1) { return; } socketWatcher.reset(new QFileSystemWatcher); socketWatcher->addPath(runtimeDir.absoluteFilePath(socketName)); QObject::connect(socketWatcher.data(), &QFileSystemWatcher::fileChanged, q, [this] (const QString &file) { if (QFile::exists(file) || serverDied) { return; } qCWarning(KWAYLAND_CLIENT) << "Connection to server went away"; serverDied = true; if (display) { free(display); display = nullptr; } socketNotifier.reset(); // need a new filesystem watcher socketWatcher.reset(new QFileSystemWatcher); socketWatcher->addPath(runtimeDir.absolutePath()); QObject::connect(socketWatcher.data(), &QFileSystemWatcher::directoryChanged, q, [this]() { if (!serverDied) { return; } if (runtimeDir.exists(socketName)) { qCDebug(KWAYLAND_CLIENT) << "Socket reappeared"; socketWatcher.reset(); serverDied = false; q->initConnection(); } } ); emit q->connectionDied(); } ); } ConnectionThread::ConnectionThread(QObject *parent) : QObject(parent) , d(new Private(this)) { connect(QCoreApplication::eventDispatcher(), &QAbstractEventDispatcher::aboutToBlock, this, [this] { if (d->display) { wl_display_flush(d->display); } }, Qt::DirectConnection); } ConnectionThread::~ConnectionThread() = default; ConnectionThread *ConnectionThread::fromApplication(QObject *parent) { if (!QGuiApplication::platformName().contains(QStringLiteral("wayland"), Qt::CaseInsensitive)) { return nullptr; } QPlatformNativeInterface *native = qApp->platformNativeInterface(); if (!native) { return nullptr; } wl_display *display = reinterpret_cast(native->nativeResourceForIntegration(QByteArrayLiteral("wl_display"))); if (!display) { return nullptr; } ConnectionThread *ct = new ConnectionThread(parent); ct->d->foreign = true; ct->d->display = display; return ct; } void ConnectionThread::initConnection() { QMetaObject::invokeMethod(this, "doInitConnection", Qt::QueuedConnection); } void ConnectionThread::doInitConnection() { d->doInitConnection(); } void ConnectionThread::setSocketName(const QString &socketName) { if (d->display) { // already initialized return; } d->socketName = socketName; } void ConnectionThread::setSocketFd(int fd) { if (d->display) { // already initialized return; } d->fd = fd; } wl_display *ConnectionThread::display() { return d->display; } QString ConnectionThread::socketName() const { return d->socketName; } void ConnectionThread::flush() { if (!d->display) { return; } wl_display_flush(d->display); } void ConnectionThread::roundtrip() { if (!d->display) { return; } + if (d->foreign) { + // try to perform roundtrip through the QPA plugin if it's supported + if (QPlatformNativeInterface *native = qApp->platformNativeInterface()) { + // in case the platform provides a dedicated roundtrip function use that install of wl_display_roundtrip + QFunctionPointer roundtripFunction = native->platformFunction(QByteArrayLiteral("roundtrip")); + if (roundtripFunction) { + roundtripFunction(); + return; + } + } + } wl_display_roundtrip(d->display); } } }