iOS: close keyboard by resigning first responder

Current approach of reloading input views assumes that
the first responder is not a QIOSTextResponder, but
a QUIView. This is not always the case, e.g if someone
calls update after setting IM enabled on current focus
object to false. In that case we'll try to close the
keyboard by reloading input views on a quitextresponder which
can fail if the text responder has an external input view
attached.

This patch will instead hide the keyboard by resigning first
responder when it is a QIOSTextResponder. If it is not
a QIOSTextResponder it means that the keyboard is already
closed, or a third-party UIVIew that supports key input is first
responder. In either case we then leave it as-is.

Task-number: QTBUG-42523
Change-Id: I4dab648af9029941a8d5d3b00011fbd169be5482
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/src/plugins/platforms/ios/qiosinputcontext.h b/src/plugins/platforms/ios/qiosinputcontext.h
index 1f1130f932..d2a9c261ba 100644
--- a/src/plugins/platforms/ios/qiosinputcontext.h
+++ b/src/plugins/platforms/ios/qiosinputcontext.h
@@ -85,15 +85,12 @@ public:
     const ImeState &imeState() { return m_imeState; };
     bool inputMethodAccepted() const;
 
-    bool isReloadingInputViewsFromUpdate() const { return m_isReloadingInputViewsFromUpdate; }
-
     static QIOSInputContext *instance();
 
 private:
     QIOSKeyboardListener *m_keyboardListener;
     QIOSTextInputResponder *m_textResponder;
     ImeState m_imeState;
-    bool m_isReloadingInputViewsFromUpdate;
 };
 
 QT_END_NAMESPACE