diff --git a/src/plugins/platforms/cocoa/qcocoawindow.h b/src/plugins/platforms/cocoa/qcocoawindow.h
index 0920bc7b4b..90c5a050d0 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.h
+++ b/src/plugins/platforms/cocoa/qcocoawindow.h
@@ -111,6 +111,7 @@ public:
     void windowDidMove();
     void windowDidResize();
     void windowWillClose();
+    bool windowIsPopupType() const;
 
     void setCurrentContext(QCocoaGLContext *context);
     QCocoaGLContext *currentContext() const;
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm
index a76830f0b8..b4c4e31753 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.mm
+++ b/src/plugins/platforms/cocoa/qcocoawindow.mm
@@ -303,6 +303,15 @@ void QCocoaWindow::windowWillClose()
     QWindowSystemInterface::handleSynchronousCloseEvent(window());
 }
 
+bool QCocoaWindow::windowIsPopupType() const
+{
+    Qt::WindowType type = window()->windowType();
+    if (type == Qt::Tool)
+        return false; // Qt::Tool has the Popup bit set but isn't, at least on Mac.
+
+    return ((type & Qt::Popup) == Qt::Popup);
+}
+
 void QCocoaWindow::setCurrentContext(QCocoaGLContext *context)
 {
     m_glContext = context;
@@ -348,7 +357,7 @@ NSWindow * QCocoaWindow::createNSWindow()
 
     // Use NSPanel for popup-type windows. (Popup, Tool, ToolTip, SplashScreen)
     if ((type & Qt::Popup) == Qt::Popup) {
-        if (type == Qt::Popup || type == Qt::ToolTip || type == Qt::SplashScreen) {
+        if (windowIsPopupType()) {
             styleMask = NSBorderlessWindowMask;
         } else {
             styleMask = (NSUtilityWindowMask | NSResizableWindowMask | NSClosableWindowMask |
diff --git a/src/plugins/platforms/cocoa/qnsview.mm b/src/plugins/platforms/cocoa/qnsview.mm
index ed67fd50fc..52f40ea01c 100644
--- a/src/plugins/platforms/cocoa/qnsview.mm
+++ b/src/plugins/platforms/cocoa/qnsview.mm
@@ -146,24 +146,24 @@ static QTouchDevice *touchDevice = 0;
 
 - (void)windowDidBecomeKey
 {
-//    QWindowSystemInterface::handleWindowActivated(m_window);
+    if (!m_platformWindow->windowIsPopupType())
+        QWindowSystemInterface::handleWindowActivated(m_window);
 }
 
 - (void)windowDidResignKey
 {
-//    QWindowSystemInterface::handleWindowActivated(0);
+    if (!m_platformWindow->windowIsPopupType())
+        QWindowSystemInterface::handleWindowActivated(0);
 }
 
 - (void)windowDidBecomeMain
 {
 //    qDebug() << "window did become main" << m_window;
-    QWindowSystemInterface::handleWindowActivated(m_window);
 }
 
 - (void)windowDidResignMain
 {
 //    qDebug() << "window did resign main" << m_window;
-    QWindowSystemInterface::handleWindowActivated(0);
 }