winemac: For SetCursorPos(), reset positions of pending mouse button and scroll events.

dlls/winemac.drv/cocoa_app.m

@@ -1032,8 +1032,8 @@ int macdrv_err_on;
         {
             [self clipCursorLocation:&pos];
 
+            ret = [self warpCursorTo:&pos from:NULL];
             synthesizedLocation = pos;
-            ret = [self warpCursorTo:&synthesizedLocation from:NULL];
             if (ret)
             {
                 // We want to discard mouse-move events that have already been
@@ -1076,6 +1076,7 @@ int macdrv_err_on;
                 [queue discardEventsMatchingMask:event_mask_for_type(MOUSE_MOVED) |
                                                  event_mask_for_type(MOUSE_MOVED_ABSOLUTE)
                                        forWindow:nil];
+                [queue resetMouseEventPositions:pos];
             }
             [eventQueuesLock unlock];
         }

dlls/winemac.drv/cocoa_event.h

@@ -42,6 +42,8 @@
     - (BOOL) query:(macdrv_query*)query timeout:(NSTimeInterval)timeout processEvents:(BOOL)processEvents;
     - (BOOL) query:(macdrv_query*)query timeout:(NSTimeInterval)timeout;
 
+    - (void) resetMouseEventPositions:(CGPoint)pos;
+
 @end
 
 void OnMainThread(dispatch_block_t block);

dlls/winemac.drv/cocoa_event.m

@@ -280,6 +280,29 @@ static NSString* const WineEventQueueThreadDictionaryKey = @"WineEventQueueThrea
         return [self query:query timeout:timeout processEvents:FALSE];
     }
 
+    - (void) resetMouseEventPositions:(CGPoint)pos
+    {
+        MacDrvEvent* event;
+
+        [eventsLock lock];
+
+        for (event in events)
+        {
+            if (event->event->type == MOUSE_BUTTON)
+            {
+                event->event->mouse_button.x = pos.x;
+                event->event->mouse_button.y = pos.y;
+            }
+            else if (event->event->type == MOUSE_SCROLL)
+            {
+                event->event->mouse_scroll.x = pos.x;
+                event->event->mouse_scroll.y = pos.y;
+            }
+        }
+
+        [eventsLock unlock];
+    }
+
 
 /***********************************************************************
  *              OnMainThread