iOS: Change show() to imply maximize, and showFullScreen() to hide status bar

Matches the Android behavior, and gives an easy and predictable way to
show true fullscreen windows that is similar to how one would do it on
a desktop platform.

We keep the statusbar visibility in sync with the window state of the
active window.

Change-Id: Ia4b99e03f83e19f9ef56cc99b9d477cc6da4c734
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/plugins/platforms/ios/qiosviewcontroller.mm b/src/plugins/platforms/ios/qiosviewcontroller.mm
index 1d5e69beac..11ac92fea5 100644
--- a/src/plugins/platforms/ios/qiosviewcontroller.mm
+++ b/src/plugins/platforms/ios/qiosviewcontroller.mm
@@ -42,9 +42,11 @@
 #import "qiosviewcontroller.h"
 
 #include <QtGui/QGuiApplication>
+#include <QtGui/QWindow>
 #include <QtGui/QScreen>
 #include "qiosscreen.h"
 #include "qiosglobal.h"
+#include "qioswindow.h"
 
 @implementation QIOSViewController
 
@@ -74,5 +76,28 @@
     qiosScreen->updateProperties();
 }
 
+#if QT_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(__IPHONE_7_0)
+- (UIStatusBarStyle)preferredStatusBarStyle
+{
+    // Since we don't place anything behind the status bare by default, we
+    // end up with a black area, so we have to enable the white text mode
+    // of the iOS7 statusbar.
+    return UIStatusBarStyleLightContent;
+
+    // FIXME: Try to detect the content underneath the statusbar and choose
+    // an appropriate style, and/or expose Qt APIs to control the style.
+}
+#endif
+
+- (BOOL)prefersStatusBarHidden
+{
+    QWindow *focusWindow = QGuiApplication::focusWindow();
+    if (!focusWindow)
+        return [UIApplication sharedApplication].statusBarHidden;
+
+    QIOSWindow *topLevel = static_cast<QIOSWindow *>(focusWindow->handle())->topLevelWindow();
+    return topLevel->window()->windowState() == Qt::WindowFullScreen;
+}
+
 @end