2 files changed, 57 insertions, 2 deletions
diff --git a/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp b/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp
index 06f0aa6747..dc4785071f 100644
--- a/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp
+++ b/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp
@@ -48,26 +48,78 @@
 
 QT_BEGIN_NAMESPACE
 
+struct GUserEventSource
+{
+    GSource source;
+    QPAEventDispatcherGlib *q;
+};
+
+static gboolean userEventSourcePrepare(GSource *source, gint *timeout)
+{
+    Q_UNUSED(timeout)
+    GUserEventSource *userEventSource = reinterpret_cast<GUserEventSource *>(source);
+    QPAEventDispatcherGlib *dispatcher = userEventSource->q;
+    if (dispatcher->m_flags & QEventLoop::ExcludeUserInputEvents)
+        return QWindowSystemInterface::nonUserInputEventsQueued();
+    else
+        return QWindowSystemInterface::windowSystemEventsQueued() > 0;
+}
+
+static gboolean userEventSourceCheck(GSource *source)
+{
+    return userEventSourcePrepare(source, 0);
+}
+
+static gboolean userEventSourceDispatch(GSource *source, GSourceFunc, gpointer)
+{
+    GUserEventSource *userEventSource = reinterpret_cast<GUserEventSource *>(source);
+    QPAEventDispatcherGlib *dispatcher = userEventSource->q;
+    QWindowSystemInterface::sendWindowSystemEvents(dispatcher->m_flags);
+    return true;
+}
+
+static GSourceFuncs userEventSourceFuncs = {
+    userEventSourcePrepare,
+    userEventSourceCheck,
+    userEventSourceDispatch,
+    NULL,
+    NULL,
+    NULL
+};
+
 QPAEventDispatcherGlibPrivate::QPAEventDispatcherGlibPrivate(GMainContext *context)
     : QEventDispatcherGlibPrivate(context)
 {
+    Q_Q(QPAEventDispatcherGlib);
+    userEventSource = reinterpret_cast<GUserEventSource *>(g_source_new(&userEventSourceFuncs,
+                                                                       sizeof(GUserEventSource)));
+    userEventSource->q = q;
+    g_source_set_can_recurse(&userEventSource->source, true);
+    g_source_attach(&userEventSource->source, mainContext);
 }
 
+
 QPAEventDispatcherGlib::QPAEventDispatcherGlib(QObject *parent)
     : QEventDispatcherGlib(*new QPAEventDispatcherGlibPrivate, parent)
     , m_flags(QEventLoop::AllEvents)
 {
+    Q_D(QPAEventDispatcherGlib);
+    d->userEventSource->q = this;
 }
 
 QPAEventDispatcherGlib::~QPAEventDispatcherGlib()
 {
+    Q_D(QPAEventDispatcherGlib);
+
+    g_source_destroy(&d->userEventSource->source);
+    g_source_unref(&d->userEventSource->source);
+    d->userEventSource = 0;
 }
 
 bool QPAEventDispatcherGlib::processEvents(QEventLoop::ProcessEventsFlags flags)
 {
     m_flags = flags;
-    const bool didSendEvents = QEventDispatcherGlib::processEvents(m_flags);
-    return QWindowSystemInterface::sendWindowSystemEvents(m_flags) || didSendEvents;
+    return QEventDispatcherGlib::processEvents(m_flags);
 }
 
 QT_END_NAMESPACE
diff --git a/src/platformsupport/eventdispatchers/qeventdispatcher_glib_p.h b/src/platformsupport/eventdispatchers/qeventdispatcher_glib_p.h
index 5930dc68e7..085a1c52f3 100644
--- a/src/platformsupport/eventdispatchers/qeventdispatcher_glib_p.h
+++ b/src/platformsupport/eventdispatchers/qeventdispatcher_glib_p.h
@@ -71,11 +71,14 @@ public:
     QEventLoop::ProcessEventsFlags m_flags;
 };
 
+struct GUserEventSource;
+
 class QPAEventDispatcherGlibPrivate : public QEventDispatcherGlibPrivate
 {
     Q_DECLARE_PUBLIC(QPAEventDispatcherGlib)
 public:
     QPAEventDispatcherGlibPrivate(GMainContext *context = 0);
+    GUserEventSource *userEventSource;
 };