Trigger fullscreen transition effects properly on app exit.

Avkon calls BeginFullScreen() and EndFullScreen() to trigger the
fullscreen system transition effects for application exit, however
the calls are made too late for Qt apps because the widgets are
already destroyed. Instead, the effects are triggered explicitly
from Qt, before closing the widgets, or from aboutToQuit, whichever
comes first.

Task-number: QT-4718
Reviewed-by: Jani Hautakangas

1 files changed, 5 insertions, 2 deletions

diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index 6e70fc2..6620efd 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -1828,9 +1828,7 @@ void qt_init(QApplicationPrivate * /* priv */, int)
     systemFont.setFamily(systemFont.defaultFamily());
     QApplicationPrivate::setSystemFont(systemFont);
 
-#ifdef Q_SYMBIAN_TRANSITION_EFFECTS
     QObject::connect(qApp, SIGNAL(aboutToQuit()), qApp, SLOT(_q_aboutToQuit()));
-#endif
 
 #ifdef Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE
     QApplicationPrivate::instance()->useTranslucentEGLSurfaces = true;
@@ -1921,6 +1919,9 @@ void qt_cleanup()
     S60->setButtonGroupContainer(0);
 #endif
 
+    // Call EndFullScreen() to prevent confusing the system effect state machine.
+    qt_endFullScreenEffect();
+
     if (S60->qtOwnsS60Environment) {
         // Restore the S60 framework trap handler. See qt_init().
         User::SetTrapHandler(S60->s60InstalledTrapHandler);
@@ -2659,6 +2660,8 @@ void QApplication::restoreOverrideCursor()
 
 void QApplicationPrivate::_q_aboutToQuit()
 {
+    qt_beginFullScreenEffect();
+
 #ifdef Q_SYMBIAN_TRANSITION_EFFECTS
     // Send the shutdown tfx command
     S60->wsSession().SendEffectCommand(ETfxCmdAppShutDown);