+#elif defined(QPA_XCB)
+bool GuiApplication::nativeEventFilter(const QByteArray & eventType,
+ void * message, long *)
+{
+ if (!current_view_ || eventType != "xcb_generic_event_t")
+ return false;
+
+ xcb_generic_event_t * ev = static_cast<xcb_generic_event_t *>(message);
+
+ switch (ev->response_type) {
+ case XCB_SELECTION_REQUEST: {
+ xcb_selection_request_event_t * srev =
+ reinterpret_cast<xcb_selection_request_event_t *>(ev);
+ if (srev->selection != XCB_ATOM_PRIMARY)
+ break;
+ LYXERR(Debug::SELECTION, "X requested selection.");
+ BufferView * bv = current_view_->currentBufferView();
+ if (bv) {
+ docstring const sel = bv->requestSelection();
+ if (!sel.empty()) {
+ d->selection_.put(sel);
+#ifdef HAVE_QT5_X11_EXTRAS
+ // Refresh the selection request timestamp.
+ // We have to do this by ourselves as Qt seems
+ // not doing that, maybe because of our
+ // "persistent selection" implementation
+ // (see comments in GuiSelection.cpp).
+ xcb_selection_notify_event_t nev;
+ nev.response_type = XCB_SELECTION_NOTIFY;
+ nev.requestor = srev->requestor;
+ nev.selection = srev->selection;
+ nev.target = srev->target;
+ nev.property = XCB_NONE;
+ nev.time = XCB_CURRENT_TIME;
+ xcb_connection_t * con = QX11Info::connection();
+ xcb_send_event(con, 0, srev->requestor,
+ XCB_EVENT_MASK_NO_EVENT,
+ reinterpret_cast<char const *>(&nev));
+ xcb_flush(con);
+#endif
+ return true;
+ }
+ }
+ break;
+ }
+ case XCB_SELECTION_CLEAR: {
+ xcb_selection_clear_event_t * scev =
+ reinterpret_cast<xcb_selection_clear_event_t *>(ev);
+ if (scev->selection != XCB_ATOM_PRIMARY)
+ break;
+ LYXERR(Debug::SELECTION, "Lost selection.");
+ BufferView * bv = current_view_->currentBufferView();
+ if (bv)
+ bv->clearSelection();
+ break;
+ }
+ }
+ return false;
+}