--- a/src/gui/kernel/qapplication_mac.mm	Tue Jan 26 12:42:25 2010 +0200
+++ b/src/gui/kernel/qapplication_mac.mm	Tue Feb 02 00:43:10 2010 +0200
@@ -104,6 +104,7 @@
 #include "qdir.h"
 #include "qdebug.h"
 #include "qtimer.h"
+#include "qurl.h"
 #include "private/qmacinputcontext_p.h"
 #include "private/qpaintengine_mac_p.h"
 #include "private/qcursor_p.h"
@@ -966,7 +967,8 @@
     AEEventID mac_id;
 } app_apple_events[] = {
     { kCoreEventClass, kAEQuitApplication },
-    { kCoreEventClass, kAEOpenDocuments }
+    { kCoreEventClass, kAEOpenDocuments },
+    { kInternetEventClass, kAEGetURL },
 };
 
 #ifndef QT_MAC_USE_COCOA
@@ -1201,7 +1203,7 @@
             app_proc_ae_handlerUPP = AEEventHandlerUPP(QApplicationPrivate::globalAppleEventProcessor);
             for(uint i = 0; i < sizeof(app_apple_events) / sizeof(QMacAppleEventTypeSpec); ++i)
                 AEInstallEventHandler(app_apple_events[i].mac_class, app_apple_events[i].mac_id,
-                        app_proc_ae_handlerUPP, SRefCon(qApp), true);
+                        app_proc_ae_handlerUPP, SRefCon(qApp), false);
         }
 
         if (QApplicationPrivate::app_style) {
@@ -1237,6 +1239,10 @@
         [cocoaApp setMenu:[qtMenuLoader menu]];
         [newDelegate setMenuLoader:qtMenuLoader];
         [qtMenuLoader release];
+
+        NSAppleEventManager *eventManager = [NSAppleEventManager sharedAppleEventManager];
+        [eventManager setEventHandler:newDelegate andSelector:@selector(getUrl:withReplyEvent:)
+          forEventClass:kInternetEventClass andEventID:kAEGetURL];
     }
 #endif
     // Register for Carbon tablet proximity events on the event monitor target.
@@ -1681,7 +1687,10 @@
             UInt32 mac_buttons = 0;
             GetEventParameter(event, kEventParamMouseChord, typeUInt32, 0,
                               sizeof(mac_buttons), 0, &mac_buttons);
-            buttons = qt_mac_get_buttons(mac_buttons);
+            if (ekind != kEventMouseWheelMoved)
+                buttons = qt_mac_get_buttons(mac_buttons);
+            else
+                buttons = QApplication::mouseButtons();
         }
 
         int wheel_deltaX = 0;
@@ -1697,15 +1706,14 @@
             // (actually two events; one for horizontal and one for vertical).
             // As a results of this, and to make sure we dont't receive duplicate events,
             // we try to detect when this happend by checking the 'compatibilityEvent'. 
-            const int scrollFactor = 4 * 8;
             SInt32 mdelt = 0;
             GetEventParameter(event, kEventParamMouseWheelSmoothHorizontalDelta, typeSInt32, 0,
                               sizeof(mdelt), 0, &mdelt);
-            wheel_deltaX = mdelt * scrollFactor;
+            wheel_deltaX = mdelt;
             mdelt = 0;
             GetEventParameter(event, kEventParamMouseWheelSmoothVerticalDelta, typeSInt32, 0,
                               sizeof(mdelt), 0, &mdelt);
-            wheel_deltaY = mdelt * scrollFactor;
+            wheel_deltaY = mdelt;
             GetEventParameter(event, kEventParamEventRef, typeEventRef, 0,
                               sizeof(compatibilityEvent), 0, &compatibilityEvent);
         } else if (ekind == kEventMouseWheelMoved) {
@@ -1718,31 +1726,11 @@
                 GetEventParameter(event, kEventParamMouseWheelAxis, typeMouseWheelAxis, 0,
                         sizeof(axis), 0, &axis);
 
-                // The 'new' event has acceleration applied by the OS, while the old (on
-                // Carbon only), has not. So we introduce acceleration here to be consistent.
-                // The acceleration is trying to respect both pixel based and line scrolling,
-                // which turns out to be rather difficult.
-                int linesToScroll = mdelt > 0 ? 1 : -1;
-                static QTime t;
-                int elapsed = t.elapsed();
-                t.restart();
-                if (elapsed < 20)
-                    linesToScroll *= 120;
-                else if (elapsed < 30)
-                    linesToScroll *= 60;
-                else if (elapsed < 50)
-                    linesToScroll *= 30;
-                else if (elapsed < 100)
-                    linesToScroll *= 6;
-                else if (elapsed < 200)
-                    linesToScroll *= 3;
-                else if (elapsed < 300)
-                    linesToScroll *= 2;
-
+                // Remove acceleration, and use either -120 or 120 as delta:
                 if (axis == kEventMouseWheelAxisX)
-                    wheel_deltaX = linesToScroll * 120;
+                    wheel_deltaX = qBound(-120, int(mdelt * 10000), 120);
                 else
-                    wheel_deltaY = linesToScroll * 120;
+                    wheel_deltaY = qBound(-120, int(mdelt * 10000), 120);
             }
         }
 
@@ -2464,7 +2452,7 @@
         switch(aeID) {
         case kAEQuitApplication: {
             extern bool qt_mac_quit_menu_item_enabled; // qmenu_mac.cpp
-            if(!QApplicationPrivate::modalState() && qt_mac_quit_menu_item_enabled) {
+            if (qt_mac_quit_menu_item_enabled) {
                 QCloseEvent ev;
                 QApplication::sendSpontaneousEvent(app, &ev);
                 if(ev.isAccepted()) {
@@ -2498,6 +2486,22 @@
         default:
             break;
         }
+    } else if (aeClass == kInternetEventClass) {
+        switch (aeID) {
+        case kAEGetURL: {
+            char urlData[1024];
+            Size actualSize;
+            if (AEGetParamPtr(ae, keyDirectObject, typeChar, 0, urlData,
+                    sizeof(urlData) - 1, &actualSize) == noErr) {
+                urlData[actualSize] = 0;
+                QFileOpenEvent ev(QUrl(QString::fromUtf8(urlData)));
+                QApplication::sendSpontaneousEvent(app, &ev);
+            }
+            break;
+        }
+        default:
+            break;
+        }
     }
 #ifdef DEBUG_EVENTS
     qDebug("Qt: internal: %shandled Apple event! %c%c%c%c %c%c%c%c", handled_event ? "(*)" : "",
@@ -2695,11 +2699,7 @@
 
 void QApplication::setWheelScrollLines(int n)
 {
-    Q_UNUSED(n);
-    // On Mac, acceleration is handled by the OS. Multiplying wheel scroll
-    // deltas with n will not be as cross platform as one might think! So
-    // we choose to go native in this case (and let wheel_scroll_lines == 1).
-    //    QApplicationPrivate::wheel_scroll_lines = n;
+    QApplicationPrivate::wheel_scroll_lines = n;
 }
 
 int QApplication::wheelScrollLines()