src/plugins/platforms/wayland/qwaylanddataoffer.cpp

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  41
  42 #include "qwaylanddataoffer.h"
  43 #include "qwaylanddatadevicemanager.h"
  44
  45 #include <QtGui/private/qguiapplication_p.h>
  46 #include <qpa/qplatformclipboard.h>
  47
  48 #include <QtCore/QDebug>
  49
  50
  51 void QWaylandDataOffer::offer_sync_callback(void *data,
  52              struct wl_callback *callback,
  53              uint32_t time)
  54 {
  55     Q_UNUSED(time);
  56     QWaylandDataOffer *mime = static_cast<QWaylandDataOffer *>(data);
  57     if (mime->m_receiveSyncCallback == callback) {
  58         mime->m_receiveSyncCallback = 0;
  59         wl_callback_destroy(callback);
  60     }
  61 }
  62
  63 const struct wl_callback_listener QWaylandDataOffer::offer_sync_callback_listener = {
  64     QWaylandDataOffer::offer_sync_callback
  65 };
  66
  67 void QWaylandDataOffer::offer(void *data,
  68               struct wl_data_offer *wl_data_offer,
  69               const char *type)
  70 {
  71     Q_UNUSED(wl_data_offer);
  72
  73     QWaylandDataOffer *data_offer = static_cast<QWaylandDataOffer *>(data);
  74
  75     if (!data_offer->m_receiveSyncCallback) {
  76         data_offer->m_receiveSyncCallback = wl_display_sync(data_offer->m_display->wl_display());
  77         wl_callback_add_listener(data_offer->m_receiveSyncCallback, &offer_sync_callback_listener, data_offer);
  78     }
  79
  80     data_offer->m_offered_mime_types.append(QString::fromLocal8Bit(type));
  81 //    qDebug() << data_offer->m_offered_mime_types;
  82 }
  83
  84 const struct wl_data_offer_listener QWaylandDataOffer::data_offer_listener = {
  85     QWaylandDataOffer::offer
  86 };
  87
  88 QWaylandDataOffer::QWaylandDataOffer(QWaylandDisplay *display, struct wl_data_offer *data_offer)
  89     : m_display(display)
  90     , m_receiveSyncCallback(0)
  91 {
  92     m_data_offer = data_offer;
  93     wl_data_offer_set_user_data(m_data_offer,this);
  94     wl_data_offer_add_listener(m_data_offer,&data_offer_listener,this);
  95 }
  96
  97 QWaylandDataOffer::~QWaylandDataOffer()
  98 {
  99     wl_data_offer_destroy(m_data_offer);
 100 }
 101
 102 bool QWaylandDataOffer::hasFormat_sys(const QString &mimeType) const
 103 {
 104     return m_offered_mime_types.contains(mimeType);
 105 }
 106
 107 QStringList QWaylandDataOffer::formats_sys() const
 108 {
 109     return m_offered_mime_types;
 110 }
 111
 112 QVariant QWaylandDataOffer::retrieveData_sys(const QString &mimeType, QVariant::Type type) const
 113 {
 114     Q_UNUSED(type);
 115     if (m_offered_mime_types.isEmpty())
 116         return QVariant();
 117
 118     int pipefd[2];
 119     if (pipe(pipefd) == -1) {
 120         qWarning("QWaylandMimeData: pipe() failed");
 121         return QVariant();
 122     }
 123
 124     QByteArray mimeTypeBa = mimeType.toLatin1();
 125     wl_data_offer_receive(m_data_offer,mimeTypeBa.constData(),pipefd[1]);
 126
 127     m_display->forceRoundTrip();
 128     close(pipefd[1]);
 129
 130     QByteArray content;
 131     char buf[256];
 132     int n;
 133     while ((n = QT_READ(pipefd[0], &buf, sizeof buf)) > 0) {
 134         content.append(buf, n);
 135     }
 136
 137     close(pipefd[0]);
 138     return content;
 139 }
 140
 141 struct wl_data_offer *QWaylandDataOffer::handle() const
 142 {
 143     return m_data_offer;
 144 }