1 files changed, 31 insertions, 0 deletions
diff --git a/src/plugins/platforms/ios/quiview.mm b/src/plugins/platforms/ios/quiview.mm
index f36cbaf685..8be3515cb5 100644
--- a/src/plugins/platforms/ios/quiview.mm
+++ b/src/plugins/platforms/ios/quiview.mm
@@ -73,6 +73,20 @@
             self.hidden = YES;
 
         self.multipleTouchEnabled = YES;
+
+        if (QIOSIntegration::instance()->debugWindowManagement()) {
+            static CGFloat hue = 0.0;
+            CGFloat lastHue = hue;
+            for (CGFloat diff = 0; diff < 0.1 || diff > 0.9; diff = fabsf(hue - lastHue))
+                hue = drand48();
+
+            #define colorWithBrightness(br) \
+                [UIColor colorWithHue:hue saturation:0.5 brightness:br alpha:1.0].CGColor
+
+            self.layer.backgroundColor = colorWithBrightness(0.5);
+            self.layer.borderColor = colorWithBrightness(1.0);
+            self.layer.borderWidth = 1.0;
+        }
     }
 
     return self;
@@ -247,6 +261,23 @@
     return YES;
 }
 
+- (BOOL)isActiveWindow
+{
+    // Normally this is determined exclusivly by being firstResponder, but
+    // since we employ a separate first responder for text input we need to
+    // handle both cases as this view being the active Qt window.
+
+    if ([self isFirstResponder])
+        return YES;
+
+    UIResponder *firstResponder = [UIResponder currentFirstResponder];
+    if ([firstResponder isKindOfClass:[QIOSTextInputResponder class]]
+        && [firstResponder nextResponder] == self)
+        return YES;
+
+    return NO;
+}
+
 // -------------------------------------------------------------------------