1 files changed, 39 insertions, 5 deletions

diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 4e17f0f..8b643ef 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -68,6 +68,7 @@
 # include "qt_cocoa_helpers_mac_p.h"
 # include "qmainwindow.h"
 # include "qtoolbar.h"
+# include <private/qmainwindowlayout_p.h>
 #endif
 #if defined(Q_WS_QWS)
 # include "qwsdisplay_qws.h"
@@ -739,9 +740,9 @@ void QWidget::setAutoFillBackground(bool enabled)
     \list
         \i  mouseMoveEvent() is called whenever the mouse moves while a mouse
             button is held down. This can be useful during drag and drop
-            operations. If you call setMouseTracking(true), you get mouse move
-            events even when no buttons are held down. (See also the \l{Drag
-            and Drop} guide.)
+            operations. If you call \l{setMouseTracking()}{setMouseTracking}(true),
+            you get mouse move events even when no buttons are held down.
+            (See also the \l{Drag and Drop} guide.)
         \i  keyReleaseEvent() is called whenever a key is released and while it
             is held down (if the key is auto-repeating). In that case, the
             widget will receive a pair of key release and key press event for
@@ -3019,6 +3020,15 @@ bool QWidget::isFullScreen() const
 */
 void QWidget::showFullScreen()
 {
+#ifdef Q_WS_MAC
+    // If the unified toolbar is enabled, we have to disable it before going fullscreen.
+    QMainWindow *mainWindow = qobject_cast<QMainWindow*>(this);
+    if (mainWindow && mainWindow->unifiedTitleAndToolBarOnMac()) {
+        mainWindow->setUnifiedTitleAndToolBarOnMac(false);
+        QMainWindowLayout *mainLayout = qobject_cast<QMainWindowLayout*>(mainWindow->layout());
+        mainLayout->activateUnifiedToolbarAfterFullScreen = true;
+    }
+#endif // Q_WS_MAC
     ensurePolished();
 #ifdef QT3_SUPPORT
     if (parent())
@@ -3051,6 +3061,18 @@ void QWidget::showMaximized()
 
     setWindowState((windowState() & ~(Qt::WindowMinimized | Qt::WindowFullScreen))
                    | Qt::WindowMaximized);
+#ifdef Q_WS_MAC
+    // If the unified toolbar was enabled before going fullscreen, we have to enable it back.
+    QMainWindow *mainWindow = qobject_cast<QMainWindow*>(this);
+    if (mainWindow)
+    {
+        QMainWindowLayout *mainLayout = qobject_cast<QMainWindowLayout*>(mainWindow->layout());
+        if (mainLayout->activateUnifiedToolbarAfterFullScreen) {
+            mainWindow->setUnifiedTitleAndToolBarOnMac(true);
+            mainLayout->activateUnifiedToolbarAfterFullScreen = false;
+        }
+    }
+#endif // Q_WS_MAC
     show();
 }
 
@@ -3072,6 +3094,18 @@ void QWidget::showNormal()
     setWindowState(windowState() & ~(Qt::WindowMinimized
                                      | Qt::WindowMaximized
                                      | Qt::WindowFullScreen));
+#ifdef Q_WS_MAC
+    // If the unified toolbar was enabled before going fullscreen, we have to enable it back.
+    QMainWindow *mainWindow = qobject_cast<QMainWindow*>(this);
+    if (mainWindow)
+    {
+        QMainWindowLayout *mainLayout = qobject_cast<QMainWindowLayout*>(mainWindow->layout());
+        if (mainLayout->activateUnifiedToolbarAfterFullScreen) {
+            mainWindow->setUnifiedTitleAndToolBarOnMac(true);
+            mainLayout->activateUnifiedToolbarAfterFullScreen = false;
+        }
+    }
+#endif // Q_WS_MAC
     show();
 }
 
@@ -8693,8 +8727,8 @@ bool QWidget::event(QEvent *event)
 /*!
   This event handler can be reimplemented to handle state changes.
 
-  The state being changed in this event can be retrieved through event \a
-  event.
+  The state being changed in this event can be retrieved through the \a event
+  supplied.
 
   Change events include: QEvent::ToolBarChange,
   QEvent::ActivationChange, QEvent::EnabledChange, QEvent::FontChange,