File indexing completed on 2024-05-05 05:33:35

 /*
     SPDX-FileCopyrightText: 2014 Martin Gräßlin <mgraesslin@kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 #include "KWayland/Client/compositor.h"
 #include "KWayland/Client/connection_thread.h"
 #include "KWayland/Client/datadevice.h"
 #include "KWayland/Client/datadevicemanager.h"
 #include "KWayland/Client/dataoffer.h"
 #include "KWayland/Client/event_queue.h"
 #include "KWayland/Client/keyboard.h"
 #include "KWayland/Client/pointer.h"
 #include "KWayland/Client/registry.h"
 #include "KWayland/Client/seat.h"
 #include "KWayland/Client/shell.h"
 #include "KWayland/Client/shm_pool.h"
 #include "KWayland/Client/surface.h"
 // Qt
 #include <QCoreApplication>
 #include <QDebug>
 #include <QFile>
 #include <QImage>
 #include <QMimeType>
 #include <QThreadPool>
 // system
 #include <unistd.h>
 
 using namespace KWayland::Client;
 
 class PasteClient : public QObject
 {
     Q_OBJECT
 public:
     explicit PasteClient(QObject *parent = nullptr);
     virtual ~PasteClient();
 
     void init();
 
 private:
     void setupRegistry(Registry *registry);
     void render();
     QThread *m_connectionThread;
     ConnectionThread *m_connectionThreadObject;
     EventQueue *m_eventQueue = nullptr;
     Compositor *m_compositor = nullptr;
     DataDeviceManager *m_dataDeviceManager = nullptr;
     DataDevice *m_dataDevice = nullptr;
     Seat *m_seat = nullptr;
     Shell *m_shell = nullptr;
     ShellSurface *m_shellSurface = nullptr;
     ShmPool *m_shm = nullptr;
     Surface *m_surface = nullptr;
 };
 
 PasteClient::PasteClient(QObject *parent)
     : QObject(parent)
     , m_connectionThread(new QThread(this))
     , m_connectionThreadObject(new ConnectionThread())
 {
 }
 
 PasteClient::~PasteClient()
 {
     m_connectionThread->quit();
     m_connectionThread->wait();
     m_connectionThreadObject->deleteLater();
 }
 
 void PasteClient::init()
 {
     connect(
         m_connectionThreadObject,
         &ConnectionThread::connected,
         this,
         [this] {
             m_eventQueue = new EventQueue(this);
             m_eventQueue->setup(m_connectionThreadObject);
 
             Registry *registry = new Registry(this);
             setupRegistry(registry);
         },
         Qt::QueuedConnection);
     m_connectionThreadObject->moveToThread(m_connectionThread);
     m_connectionThread->start();
 
     m_connectionThreadObject->initConnection();
 }
 
 void PasteClient::setupRegistry(Registry *registry)
 {
     connect(registry, &Registry::compositorAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_compositor = registry->createCompositor(name, version, this);
     });
     connect(registry, &Registry::shellAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_shell = registry->createShell(name, version, this);
     });
     connect(registry, &Registry::shmAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_shm = registry->createShmPool(name, version, this);
     });
     connect(registry, &Registry::seatAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_seat = registry->createSeat(name, version, this);
     });
     connect(registry, &Registry::dataDeviceManagerAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_dataDeviceManager = registry->createDataDeviceManager(name, version, this);
     });
     connect(registry, &Registry::interfacesAnnounced, this, [this] {
         Q_ASSERT(m_compositor);
         Q_ASSERT(m_dataDeviceManager);
         Q_ASSERT(m_seat);
         Q_ASSERT(m_shell);
         Q_ASSERT(m_shm);
         m_surface = m_compositor->createSurface(this);
         Q_ASSERT(m_surface);
         m_shellSurface = m_shell->createSurface(m_surface, this);
         Q_ASSERT(m_shellSurface);
         m_shellSurface->setFullscreen();
         connect(m_shellSurface, &ShellSurface::sizeChanged, this, &PasteClient::render);
 
         m_dataDevice = m_dataDeviceManager->getDataDevice(m_seat, this);
         connect(m_dataDevice, &DataDevice::selectionOffered, this, [this] {
             auto dataOffer = m_dataDevice->offeredSelection();
             if (!dataOffer) {
                 return;
             }
             const auto &mimeTypes = dataOffer->offeredMimeTypes();
             auto it = std::find_if(mimeTypes.constBegin(), mimeTypes.constEnd(), [](const QMimeType &type) {
                 return type.inherits(QStringLiteral("text/plain"));
             });
             if (it == mimeTypes.constEnd()) {
                 return;
             }
             int pipeFds[2];
             if (pipe(pipeFds) != 0) {
                 return;
             }
             dataOffer->receive((*it).name(), pipeFds[1]);
             close(pipeFds[1]);
             QThreadPool::globalInstance()->start([pipeFds] {
                 QFile readPipe;
                 if (readPipe.open(pipeFds[0], QIODevice::ReadOnly)) {
                     qDebug() << "Pasted: " << readPipe.readLine();
                 }
                 close(pipeFds[0]);
                 QCoreApplication::quit();
             });
         });
     });
     registry->setEventQueue(m_eventQueue);
     registry->create(m_connectionThreadObject);
     registry->setup();
 }
 
 void PasteClient::render()
 {
     const QSize &size = m_shellSurface->size();
     auto buffer = m_shm->getBuffer(size, size.width() * 4).toStrongRef();
     buffer->setUsed(true);
     QImage image(buffer->address(), size.width(), size.height(), QImage::Format_ARGB32_Premultiplied);
     image.fill(Qt::blue);
 
     m_surface->attachBuffer(*buffer);
     m_surface->damage(QRect(QPoint(0, 0), size));
     m_surface->commit(Surface::CommitFlag::None);
     buffer->setUsed(false);
 }
 
 int main(int argc, char **argv)
 {
     QCoreApplication app(argc, argv);
     PasteClient client;
     client.init();
 
     return app.exec();
 }
 
 #include "pasteclient.moc"