From f752633b878840634ca374fb9c1e8755aa1fd886 Mon Sep 17 00:00:00 2001
From: Richard Moe Gustavsen <richard.gustavsen@nokia.com>
Date: Wed, 29 Jul 2009 15:48:46 +0200
Subject: Unable to change focus between two line edits on mac

This is because we try to decide whether the window cocoa tells
us to be active should be active, and if we desagree, we do nothing.
The result is that Qt and Cocoa ends up in different states.
I decided to remove a lot of the logic that went on in this case, and
the resons is:
    1. By checking the callplaces to
onApplicationWindowChangedActivation, we know that we always have a
valid widget pointer, and we know that the widget always is a window
(otherwise Cocoa would never tell us that the widget got active).
    2. We can never end up doing nothing in this response. The best
we can do is to follow what Cocoa tells us. If this turns out to
break something, it would probably be better to check why we get an
activation call in the first place for a window that should not be
activated (e.g. is canBecomeKeyWindow set correctly?)

Task: 253610
RevBy: msorvig
---
 src/gui/kernel/qapplication_mac.mm | 49 ++++++++++----------------------------
 1 file changed, 12 insertions(+), 37 deletions(-)

diff --git a/src/gui/kernel/qapplication_mac.mm b/src/gui/kernel/qapplication_mac.mm
index 0d86c8e..be23949 100644
--- a/src/gui/kernel/qapplication_mac.mm
+++ b/src/gui/kernel/qapplication_mac.mm
@@ -1481,6 +1481,7 @@ QWidget *QApplicationPrivate::tryModalHelper_sys(QWidget *top)
     return top;
 }
 
+#ifndef QT_MAC_USE_COCOA
 static bool qt_try_modal(QWidget *widget, EventRef event)
 {
     QWidget * top = 0;
@@ -1514,6 +1515,7 @@ static bool qt_try_modal(QWidget *widget, EventRef event)
 #endif
     return !block_event;
 }
+#endif
 
 OSStatus QApplicationPrivate::tabletProximityCallback(EventHandlerCallRef, EventRef carbonEvent,
                                                       void *)
@@ -2894,52 +2896,25 @@ bool QApplicationPrivate::canQuit()
 #endif
 }
 
-void onApplicationWindowChangedActivation( QWidget*widget, bool activated )
+void onApplicationWindowChangedActivation(QWidget *widget, bool activated)
 {
 #if QT_MAC_USE_COCOA
-    QApplication *app = qApp;
+    if (!widget)
+        return;
 
-    if ( activated )
-    {
-        if (QApplicationPrivate::app_style)
-        {
+    if (activated) {
+        if (QApplicationPrivate::app_style) {
             QEvent ev(QEvent::Style);
             qt_sendSpontaneousEvent(QApplicationPrivate::app_style, &ev);
         }
-
-        if (widget && app_do_modal && !qt_try_modal(widget, NULL))
-            return;
-
-        if (widget && widget->window()->isVisible())
-        {
-            QWidget *tlw = widget->window();
-
-            if (tlw->isWindow() && !(tlw->windowType() == Qt::Popup)
-                 && !qt_mac_is_macdrawer(tlw)
-                && (!tlw->parentWidget() || tlw->isModal() || !(tlw->windowType() == Qt::Tool))) {
-                bool just_send_event = false;
-#if 0
-                WindowActivationScope    scope;
-                if ( GetWindowActivationScope((OSWindowRef)wid, &scope) == noErr &&
-                        scope == kWindowActivationScopeIndependent) 
-                {
-                    if ( GetFrontWindowOfClass(kAllWindowClasses, true) != wid )
-                        just_send_event = true;
-                }
-#endif
-                if (just_send_event) {
-                    QEvent e(QEvent::WindowActivate);
-                    qt_sendSpontaneousEvent(widget, &e);
-                } else {
-                    app->setActiveWindow(tlw);
-                }
-            }
-        }
+        qApp->setActiveWindow(widget);
     } else { // deactivated
-        if (widget && QApplicationPrivate::active_window == widget)
-            app->setActiveWindow(0);
+        if (QApplicationPrivate::active_window == widget)
+            qApp->setActiveWindow(0);
     }
+
     QMenuBar::macUpdateMenuBar();
+
 #else
     Q_UNUSED(widget);
     Q_UNUSED(activated);
-- 
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