winemac: Implement SetCursorPos().

dlls/winemac.drv/cocoa_app.h

@@ -58,6 +58,8 @@
     int         cursorFrame;
     NSTimer*    cursorTimer;
     BOOL        cursorHidden;
+
+    NSTimeInterval lastSetCursorPositionTime;
 }
 
 @property (nonatomic) CGEventSourceKeyboardType keyboardType;

dlls/winemac.drv/cocoa_app.m

@@ -548,6 +548,31 @@ int macdrv_err_on;
         }
     }
 
+    - (BOOL) setCursorPosition:(CGPoint)pos
+    {
+        BOOL ret;
+
+        ret = (CGWarpMouseCursorPosition(pos) == kCGErrorSuccess);
+        if (ret)
+        {
+            WineEventQueue* queue;
+
+            lastSetCursorPositionTime = [[NSProcessInfo processInfo] systemUptime];
+
+            // Discard all pending mouse move events.
+            [eventQueuesLock lock];
+            for (queue in eventQueues)
+            {
+                [queue discardEventsMatchingMask:event_mask_for_type(MOUSE_MOVED) |
+                                                 event_mask_for_type(MOUSE_MOVED_ABSOLUTE)
+                                       forWindow:nil];
+            }
+            [eventQueuesLock unlock];
+        }
+
+        return ret;
+    }
+
 
     /*
      * ---------- NSApplication method overrides ----------
@@ -587,6 +612,17 @@ int macdrv_err_on;
                 BOOL absolute = forceNextMouseMoveAbsolute || (targetWindow != lastTargetWindow);
                 forceNextMouseMoveAbsolute = FALSE;
 
+                // If we recently warped the cursor, discard mouse move events until
+                // we see an event which is later than that time.
+                if (lastSetCursorPositionTime)
+                {
+                    if ([anEvent timestamp] <= lastSetCursorPositionTime)
+                        return;
+
+                    lastSetCursorPositionTime = 0;
+                    absolute = TRUE;
+                }
+
                 [targetWindow postMouseMovedEvent:anEvent absolute:absolute];
                 lastTargetWindow = targetWindow;
             }
@@ -893,3 +929,20 @@ int macdrv_get_cursor_position(CGPoint *pos)
 
     return TRUE;
 }
+
+/***********************************************************************
+ *              macdrv_set_cursor_position
+ *
+ * Sets the cursor position without generating events.  Returns zero on
+ * failure, non-zero on success.
+ */
+int macdrv_set_cursor_position(CGPoint pos)
+{
+    __block int ret;
+
+    OnMainThread(^{
+        ret = [NSApp setCursorPosition:pos];
+    });
+
+    return ret;
+}

dlls/winemac.drv/macdrv_cocoa.h

@@ -121,6 +121,7 @@ extern void macdrv_beep(void) DECLSPEC_HIDDEN;
 /* cursor */
 extern void macdrv_set_cursor(CFStringRef name, CFArrayRef frames) DECLSPEC_HIDDEN;
 extern int macdrv_get_cursor_position(CGPoint *pos) DECLSPEC_HIDDEN;
+extern int macdrv_set_cursor_position(CGPoint pos) DECLSPEC_HIDDEN;
 
 
 /* display */

dlls/winemac.drv/mouse.c

@@ -848,6 +848,20 @@ done:
 
 
 /***********************************************************************
+ *              SetCursorPos (MACDRV.@)
+ */
+BOOL CDECL macdrv_SetCursorPos(INT x, INT y)
+{
+    BOOL ret = macdrv_set_cursor_position(CGPointMake(x, y));
+    if (ret)
+        TRACE("warped to %d,%d\n", x, y);
+    else
+        ERR("failed to warp to %d,%d\n", x, y);
+    return ret;
+}
+
+
+/***********************************************************************
  *              macdrv_mouse_button
  *
  * Handler for MOUSE_BUTTON events.

dlls/winemac.drv/winemac.drv.spec

@@ -22,6 +22,7 @@
 @ cdecl MsgWaitForMultipleObjectsEx(long ptr long long long) macdrv_MsgWaitForMultipleObjectsEx
 @ cdecl ScrollDC(long long long ptr ptr long ptr) macdrv_ScrollDC
 @ cdecl SetCursor(long) macdrv_SetCursor
+@ cdecl SetCursorPos(long long) macdrv_SetCursorPos
 @ cdecl SetFocus(long) macdrv_SetFocus
 @ cdecl SetLayeredWindowAttributes(long long long long) macdrv_SetLayeredWindowAttributes
 @ cdecl SetParent(long long long) macdrv_SetParent