iOS: handle content orientation feedback from application

Change-Id: I2bfb4ee4840086dcd3ec85c2ee7e8769e76d2700
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>

src/plugins/platforms/ios/qioswindow.h

@@ -86,6 +86,7 @@ public:
     void updateGeometry(const QRect &rect);
 
     void setWindowState(Qt::WindowState state);
+    void handleContentOrientationChange(Qt::ScreenOrientation orientation);
 
     GLuint framebufferObject(const QIOSContext &context) const;
 

src/plugins/platforms/ios/qioswindow.mm

@@ -43,6 +43,7 @@
 #include "qioscontext.h"
 #include "qiosscreen.h"
 #include "qiosapplicationdelegate.h"
+#include "qiosorientationlistener.h"
 
 #import <QuartzCore/CAEAGLLayer.h>
 
@@ -248,6 +249,14 @@ void QIOSWindow::setWindowState(Qt::WindowState state)
     }
 }
 
+void QIOSWindow::handleContentOrientationChange(Qt::ScreenOrientation orientation)
+{
+    // Keep the status bar in sync with content orientation. This will ensure
+    // that the task bar (and associated gestures) are aligned correctly:
+    UIDeviceOrientation uiOrientation = convertToUIOrientation(orientation);
+    [[UIApplication sharedApplication] setStatusBarOrientation:uiOrientation animated:NO];
+}
+
 GLuint QIOSWindow::framebufferObject(const QIOSContext &context) const
 {
     static GLuint framebuffer = 0;