iOS: Simplify view management in QIOSKeyboardListener

We don't need to keep track of the view-controller or add ourselves as
a gesture recognizer inside QIOSKeyboardListener. In fact, leaving the
call to removeGestureRecognizer in [QIOSKeyboardListener dealloc] will
result in QIOSKeyboardListener never being released, as the view that
we add the recognizer to will keep a strong reference to the recognizer,
so dealloc is never called unless the view is also released, which is
unlikely to happen. We now fully control the lifetime of the recognizer.

Change-Id: I6755e8cdfcc8f1062314db51aa54a2b7ecd1b967
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@theqtcompany.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/plugins/platforms/ios/qiosinputcontext.h b/src/plugins/platforms/ios/qiosinputcontext.h
index 174c44751c..eb6b04a2ac 100644
--- a/src/plugins/platforms/ios/qiosinputcontext.h
+++ b/src/plugins/platforms/ios/qiosinputcontext.h
@@ -91,6 +91,8 @@ public:
     static QIOSInputContext *instance();
 
 private:
+    UIView* scrollableRootView();
+
     union {
         QIOSKeyboardListener *m_keyboardHideGesture;
         id <KeyboardState> m_keyboardState;