iOS: Add helper for getting the iOS platform integration instance

Change-Id: I550d345ab0f8bcba1225c425464e198d43d9fda8
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>

src/plugins/platforms/ios/qiosapplicationdelegate.mm

@@ -46,7 +46,6 @@
 #include "qiosviewcontroller.h"
 #include "qioswindow.h"
 
-#include <QtGui/private/qguiapplication_p.h>
 #include <qpa/qplatformintegration.h>
 
 #include <QtCore/QtCore>
@@ -96,7 +95,9 @@
     if (!QGuiApplication::instance())
         return NO;
 
-    QIOSIntegration *iosIntegration = static_cast<QIOSIntegration *>(QGuiApplicationPrivate::platformIntegration());
+    QIOSIntegration *iosIntegration = QIOSIntegration::instance();
+    Q_ASSERT(iosIntegration);
+
     QIOSServices *iosServices = static_cast<QIOSServices *>(iosIntegration->services());
 
     return iosServices->handleUrl(QUrl::fromNSURL(url));

src/plugins/platforms/ios/qiosintegration.h

@@ -84,6 +84,8 @@ public:
     QTouchDevice *touchDevice();
     QPlatformAccessibility *accessibility() const Q_DECL_OVERRIDE;
 
+    static QIOSIntegration *instance();
+
 private:
     QPlatformFontDatabase *m_fontDatabase;
     QPlatformClipboard *m_clipboard;

src/plugins/platforms/ios/qiosintegration.mm

@@ -52,6 +52,8 @@
 #include "qiostheme.h"
 #include "qiosservices.h"
 
+#include <QtGui/private/qguiapplication_p.h>
+
 #include <qpa/qplatformoffscreensurface.h>
 
 #include <QtPlatformSupport/private/qcoretextfontdatabase_p.h>
@@ -62,6 +64,11 @@
 
 QT_BEGIN_NAMESPACE
 
+QIOSIntegration *QIOSIntegration::instance()
+{
+    return static_cast<QIOSIntegration *>(QGuiApplicationPrivate::platformIntegration());
+}
+
 QIOSIntegration::QIOSIntegration()
     : m_fontDatabase(new QCoreTextFontDatabase)
     , m_clipboard(new QIOSClipboard)

src/plugins/platforms/ios/quiview.mm

@@ -46,7 +46,6 @@
 #include "qioswindow.h"
 
 #include <QtGui/private/qwindow_p.h>
-#include <QtGui/private/qguiapplication_p.h>
 
 // Include category as an alternative to using -ObjC (Apple QA1490)
 #include "quiview_textinput.mm"
@@ -235,7 +234,7 @@
 - (void) sendTouchEventWithTimestamp:(ulong)timeStamp
 {
     // Send touch event synchronously
-    QIOSIntegration *iosIntegration = static_cast<QIOSIntegration *>(QGuiApplicationPrivate::platformIntegration());
+    QIOSIntegration *iosIntegration = QIOSIntegration::instance();
     QWindowSystemInterface::handleTouchEvent(m_qioswindow->window(), timeStamp, iosIntegration->touchDevice(), m_activeTouches.values());
     QWindowSystemInterface::flushWindowSystemEvents();
 }

src/plugins/platforms/ios/quiview_accessibility.mm

@@ -42,6 +42,8 @@
 #include "qiosplatformaccessibility.h"
 #include "quiaccessibilityelement.h"
 
+#include <QtGui/private/qguiapplication_p.h>
+
 @implementation QUIView (Accessibility)
 
 - (void)createAccessibleElement:(QAccessibleInterface *)iface

src/plugins/platforms/ios/quiview_textinput.mm

@@ -42,6 +42,7 @@
 #include "qiosinputcontext.h"
 
 #include <QtGui/qtextformat.h>
+#include <QtGui/private/qguiapplication_p.h>
 
 class StaticVariables
 {