Process screen events in the main thread

Screen events are still read in the screen event thread but are
processed in the main thread to make it possible to support
QAbstractNativeEventFilter for screen events later.

Implementation is similar to the xcb platform plugin.

Change-Id: I7bade3e13e51c6d70bb608727a93bbd3aabc5d47
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp b/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp
index 129f149ca1..efffd26981 100644
--- a/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp
+++ b/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp
@@ -40,6 +40,9 @@
 ****************************************************************************/
 
 #include "qqnxscreeneventhandler.h"
+#if defined(QQNX_SCREENEVENTTHREAD)
+#include "qqnxscreeneventthread.h"
+#endif
 #include "qqnxintegration.h"
 #include "qqnxkeytranslator.h"
 #include "qqnxscreen.h"
@@ -63,6 +66,9 @@ QQnxScreenEventHandler::QQnxScreenEventHandler(QQnxIntegration *integration)
     , m_lastButtonState(Qt::NoButton)
     , m_lastMouseWindow(0)
     , m_touchDevice(0)
+#if defined(QQNX_SCREENEVENTTHREAD)
+    , m_eventThread(0)
+#endif
 {
     // Create a touch device
     m_touchDevice = new QTouchDevice;
@@ -182,6 +188,39 @@ void QQnxScreenEventHandler::injectKeyboardEvent(int flags, int sym, int modifie
     }
 }
 
+#if defined(QQNX_SCREENEVENTTHREAD)
+void QQnxScreenEventHandler::setScreenEventThread(QQnxScreenEventThread *eventThread)
+{
+    m_eventThread = eventThread;
+}
+
+void QQnxScreenEventHandler::processEventsFromScreenThread()
+{
+    if (!m_eventThread)
+        return;
+
+    QQnxScreenEventArray *events = m_eventThread->lock();
+
+    for (int i = 0; i < events->size(); ++i) {
+        screen_event_t event = events->at(i);
+        if (!event)
+            continue;
+        (*events)[i] = 0;
+
+        m_eventThread->unlock();
+
+        handleEvent(event);
+        screen_destroy_event(event);
+
+        m_eventThread->lock();
+    }
+
+    events->clear();
+
+    m_eventThread->unlock();
+}
+#endif
+
 void QQnxScreenEventHandler::handleKeyboardEvent(screen_event_t event)
 {
     // get flags of key event