From 00b96399e6d3bcd7a1081721cafeb15da3ab9781 Mon Sep 17 00:00:00 2001
From: Fabian Bumberger <fbumberger@rim.com>
Date: Wed, 29 Jan 2014 17:56:00 +0100
Subject: [PATCH] [QNX] Don't deactivate windows focus

When the focus changes, screen sends a focus deactivated change for the focus window.
Depending on the order, this might deactivate the window focus completely. This
for example leads to problems with QComboBox.

Change-Id: Ia57f061a765c1f971d86d941b17f573ce9221ae1
Reviewed-by: Kevin Krammer <kevin.krammer@kdab.com>
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
---
 .../platforms/qnx/qqnxscreeneventhandler.cpp  | 26 ++++++++++++++-----
 .../platforms/qnx/qqnxscreeneventhandler.h    |  4 +++
 2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp b/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp
index 8757e391ef..178ea121e6 100644
--- a/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp
+++ b/src/plugins/platforms/qnx/qqnxscreeneventhandler.cpp
@@ -72,6 +72,7 @@ QQnxScreenEventHandler::QQnxScreenEventHandler(QQnxIntegration *integration)
 #if defined(QQNX_SCREENEVENTTHREAD)
     , m_eventThread(0)
 #endif
+    , m_focusLostTimer(-1)
 {
     // Create a touch device
     m_touchDevice = new QTouchDevice;
@@ -617,13 +618,26 @@ void QQnxScreenEventHandler::handleKeyboardFocusPropertyEvent(screen_window_t wi
         qFatal("QQnx: failed to query keyboard focus property, errno=%d", errno);
 
     QWindow *focusWindow = QQnxIntegration::window(window);
-    if (focus) {
+
+    if (m_focusLostTimer != -1) {
+        killTimer(m_focusLostTimer);
+        m_focusLostTimer = -1;
+    }
+
+    if (focus && focusWindow != QGuiApplication::focusWindow())
         QWindowSystemInterface::handleWindowActivated(focusWindow);
-    } else if (focusWindow == QGuiApplication::focusWindow()) {
-        // Deactivate only if the window was the focus window.
-        // Screen might send a keyboard focus event for a newly created
-        // window on the secondary screen, with focus 0.
-        QWindowSystemInterface::handleWindowActivated(0);
+    else if (!focus && focusWindow == QGuiApplication::focusWindow())
+        m_focusLostTimer = startTimer(50);
+}
+
+void QQnxScreenEventHandler::timerEvent(QTimerEvent *event)
+{
+    if (event->timerId() == m_focusLostTimer) {
+        killTimer(m_focusLostTimer);
+        m_focusLostTimer = -1;
+        event->accept();
+    } else {
+        QObject::timerEvent(event);
     }
 }
 
diff --git a/src/plugins/platforms/qnx/qqnxscreeneventhandler.h b/src/plugins/platforms/qnx/qqnxscreeneventhandler.h
index a7bcd449ee..bab6420cb8 100644
--- a/src/plugins/platforms/qnx/qqnxscreeneventhandler.h
+++ b/src/plugins/platforms/qnx/qqnxscreeneventhandler.h
@@ -76,6 +76,9 @@ Q_SIGNALS:
     void newWindowCreated(void *window);
     void windowClosed(void *window);
 
+protected:
+    void timerEvent(QTimerEvent *event);
+
 #if defined(QQNX_SCREENEVENTTHREAD)
 private Q_SLOTS:
     void processEventsFromScreenThread();
@@ -107,6 +110,7 @@ private:
 #if defined(QQNX_SCREENEVENTTHREAD)
     QQnxScreenEventThread *m_eventThread;
 #endif
+    int m_focusLostTimer;
 };
 
 QT_END_NAMESPACE