1 files changed, 61 insertions, 18 deletions

diff --git a/src/gui/kernel/qt_cocoa_helpers_mac.mm b/src/gui/kernel/qt_cocoa_helpers_mac.mm
index 9165836..554e9d5 100644
--- a/src/gui/kernel/qt_cocoa_helpers_mac.mm
+++ b/src/gui/kernel/qt_cocoa_helpers_mac.mm
@@ -88,6 +88,52 @@
 
 QT_BEGIN_NAMESPACE
 
+Q_GLOBAL_STATIC(QMacWindowFader, macwindowFader);
+
+QMacWindowFader::QMacWindowFader()
+    : m_duration(0.250)
+{
+}
+
+QMacWindowFader *QMacWindowFader::currentFader()
+{
+    return macwindowFader();
+}
+
+void QMacWindowFader::registerWindowToFade(QWidget *window)
+{
+    m_windowsToFade.append(window);
+}
+
+void QMacWindowFader::performFade()
+{
+    const QWidgetList myWidgetsToFade = m_windowsToFade;
+    const int widgetCount = myWidgetsToFade.count();
+#if QT_MAC_USE_COCOA
+    QMacCocoaAutoReleasePool pool;
+    [NSAnimationContext beginGrouping];
+    [[NSAnimationContext currentContext] setDuration:NSTimeInterval(m_duration)];
+#endif
+
+    for (int i = 0; i < widgetCount; ++i) {
+        QWidget *widget = m_windowsToFade.at(i);
+        OSWindowRef window = qt_mac_window_for(widget);
+#if QT_MAC_USE_COCOA
+        [[window animator] setAlphaValue:0.0];
+        QTimer::singleShot(qRound(m_duration * 1000), widget, SLOT(hide()));
+#else
+        TransitionWindowOptions options = {0, m_duration, 0, 0};
+        TransitionWindowWithOptions(window, kWindowFadeTransitionEffect, kWindowHideTransitionAction,
+                                    0, 1, &options);
+#endif
+    }
+#if QT_MAC_USE_COCOA
+    [NSAnimationContext endGrouping];
+#endif
+    m_duration = 0.250;
+    m_windowsToFade.clear();
+}
+
 extern bool qt_sendSpontaneousEvent(QObject *receiver, QEvent *event); // qapplication.cpp;
 extern Qt::MouseButton cocoaButton2QtButton(NSInteger buttonNum); // qcocoaview.mm
 extern QWidget * mac_mouse_grabber;
@@ -95,29 +141,26 @@ extern QWidget * mac_mouse_grabber;
 void macWindowFade(void * /*OSWindowRef*/ window, float durationSeconds)
 {
     OSWindowRef wnd = static_cast<OSWindowRef>(window);
-	if( wnd ) {
+    if (wnd) {
+        QWidget *widget;
 #if QT_MAC_USE_COCOA
-        QMacCocoaAutoReleasePool pool;
-        [NSAnimationContext beginGrouping];
-        [[wnd animator] setAlphaValue:0.0];
-        if (durationSeconds > 0) {
-            [[NSAnimationContext currentContext] setDuration:NSTimeInterval(durationSeconds)];
-        } else {
-            durationSeconds = [[NSAnimationContext currentContext] duration];
-        }
-        [NSAnimationContext endGrouping];
-        QTimer::singleShot(qRound(durationSeconds * 1000), [wnd QT_MANGLE_NAMESPACE(qt_qwidget)], SLOT(hide()));
+        widget = [wnd QT_MANGLE_NAMESPACE(qt_qwidget)];
 #else
-        if (durationSeconds <= 0)
-            durationSeconds = 0.15;
-		TransitionWindowOptions options = {0, durationSeconds, 0, 0};
-		TransitionWindowWithOptions(wnd, kWindowFadeTransitionEffect, kWindowHideTransitionAction, 0, 1, &options);
+    const UInt32 kWidgetCreatorQt = kEventClassQt;
+    enum {
+        kWidgetPropertyQWidget = 'QWId' //QWidget *
+    };
+        if (GetWindowProperty(static_cast<WindowRef>(window), kWidgetCreatorQt, kWidgetPropertyQWidget, sizeof(widget), 0, &widget) != noErr)
+            widget = 0;
 #endif
-	}
+        if (widget) {
+            QMacWindowFader::currentFader()->setFadeDuration(durationSeconds);
+            QMacWindowFader::currentFader()->registerWindowToFade(widget);
+            QMacWindowFader::currentFader()->performFade();
+        }
+    }
 }
 
-
-
 bool macWindowIsTextured( void * /*OSWindowRef*/ window )
 {
     OSWindowRef wnd = static_cast<OSWindowRef>(window);