iOS: Make QIOSTextInputResponder a proper first-responder during text input

Instead of faking it, by returning YES for isFirstResponder, which caused
issues when iOS would try to dismiss the keyboard by resigning the true
first-responder.

Change-Id: I816c4cf9c699d72995ce7968e1f1a4aa9c9c167e
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/plugins/platforms/ios/quiview.mm b/src/plugins/platforms/ios/quiview.mm
index 33e5b955e3..c4b92618b1 100644
--- a/src/plugins/platforms/ios/quiview.mm
+++ b/src/plugins/platforms/ios/quiview.mm
@@ -44,6 +44,7 @@
 #include "qiosglobal.h"
 #include "qiosintegration.h"
 #include "qiosviewcontroller.h"
+#include "qiostextresponder.h"
 #include "qioswindow.h"
 #include "qiosmenu.h"
 
@@ -222,6 +223,15 @@
     if ([responder isKindOfClass:[QUIView class]])
         return NO;
 
+    // Nor do we want to deactivate the Qt window if the new responder
+    // is temporarily handling text input on behalf of a Qt window.
+    if ([responder isKindOfClass:[QIOSTextInputResponder class]]) {
+        while ((responder = [responder nextResponder])) {
+            if ([responder isKindOfClass:[QUIView class]])
+                return NO;
+        }
+    }
+
     return YES;
 }