Changed mouseScroll to use X and Y as direction.

src/mouse.c

@@ -232,71 +232,75 @@ void doubleClick(MMMouseButton button)
 #endif
 }
 
-/**
- * Function used to scroll the screen in the required direction.
- * This uses the magnitude to scroll the required amount in the direction. 
- * TODO Requires further fine tuning based on the requirements.
- */
-void scrollMouse(int scrollMagnitude, MMMouseWheelDirection scrollDirection)
+void scrollMouse(int x, int y)
 {
-	#if defined(IS_WINDOWS)
+#if defined(IS_WINDOWS)
 		// Fix for #97 https://github.com/octalmage/robotjs/issues/97,
 		// C89 needs variables declared on top of functions (mouseScrollInput)
-		INPUT mouseScrollInput;
-	#endif
-
-	/* Direction should only be considered based on the scrollDirection. This
-	 * Should not interfere. */
-	int cleanScrollMagnitude = abs(scrollMagnitude);
-	if (!(scrollDirection == DIRECTION_UP || scrollDirection == DIRECTION_DOWN))
-	{
-		return;
-	}
+		INPUT mouseScrollInputH;
+		INPUT mouseScrollInputV;
+#endif
 
-	/* Set up the OS specific solution */
-	#if defined(__APPLE__)
+  /* Direction should only be considered based on the scrollDirection. This
+   * Should not interfere. */
 
-		CGWheelCount wheel = 1;
-		CGEventRef event;
+  /* Set up the OS specific solution */
+#if defined(__APPLE__)
 
-		/* Make scroll magnitude negative if we're scrolling down. */
-		cleanScrollMagnitude = cleanScrollMagnitude * scrollDirection;
+		CGEventRef event;
 
-		event = CGEventCreateScrollWheelEvent(NULL, kCGScrollEventUnitLine, wheel, cleanScrollMagnitude, 0);
+		event = CGEventCreateScrollWheelEvent(NULL, kCGScrollEventUnitPixel, 2, y, x);
 		CGEventPost(kCGHIDEventTap, event);
 
-	#elif defined(USE_X11)
+    CFRelease(event);
+
+#elif defined(USE_X11)
 
-		int x;
-		int dir = 4; /* Button 4 is up, 5 is down. */
+		int ydir = 4; /* Button 4 is up, 5 is down. */
+		int xdir = 6;
 		Display *display = XGetMainDisplay();
 
-		if (scrollDirection == DIRECTION_DOWN)
-		{
-			dir = 5;
+		if (y < 0){
+			ydir = 5;
 		}
-
-		for (x = 0; x < cleanScrollMagnitude; x++)
-		{
-			XTestFakeButtonEvent(display, dir, 1, CurrentTime);
-			XTestFakeButtonEvent(display, dir, 0, CurrentTime);
+		if (x < 0){
+			xdir = 7;
+		}
+
+    int xi;
+    int yi;
+		for (xi = 0; xi < abs(x); xi++) {
+			XTestFakeButtonEvent(display, xdir, 1, CurrentTime);
+			XTestFakeButtonEvent(display, xdir, 0, CurrentTime);
+		}
+		for (yi = 0; yi < abs(y); yi++) {
+			YTestFakeButtonEvent(display, ydir, 1, CurrentTime);
+			YTestFakeButtonEvent(display, ydir, 0, CurrentTime);
 		}
 
 		XFlush(display);
 
-	#elif defined(IS_WINDOWS)
-
-		mouseScrollInput.type = INPUT_MOUSE;
-		mouseScrollInput.mi.dx = 0;
-		mouseScrollInput.mi.dy = 0;
-		mouseScrollInput.mi.dwFlags = MOUSEEVENTF_WHEEL;
-		mouseScrollInput.mi.time = 0;
-		mouseScrollInput.mi.dwExtraInfo = 0;
-		mouseScrollInput.mi.mouseData = WHEEL_DELTA * scrollDirection * cleanScrollMagnitude;
-
-		SendInput(1, &mouseScrollInput, sizeof(mouseScrollInput));
+#elif defined(IS_WINDOWS)
 
-	#endif
+		mouseScrollInputH.type = INPUT_MOUSE;
+		mouseScrollInputH.mi.dx = 0;
+		mouseScrollInputH.mi.dy = 0;
+		mouseScrollInputH.mi.dwFlags = MOUSEEVENTF_WHEEL;
+		mouseScrollInputH.mi.time = 0;
+		mouseScrollInputH.mi.dwExtraInfo = 0;
+		mouseScrollInputH.mi.mouseData = WHEEL_DELTA * x;
+
+		mouseScrollInputV.type = INPUT_MOUSE;
+		mouseScrollInputV.mi.dx = 0;
+		mouseScrollInputV.mi.dy = 0;
+		mouseScrollInputV.mi.dwFlags = MOUSEEVENTF_HWHEEL;
+		mouseScrollInputV.mi.time = 0;
+		mouseScrollInputV.mi.dwExtraInfo = 0;
+		mouseScrollInputV.mi.mouseData = WHEEL_DELTA * y;
+
+		SendInput(1, &mouseScrollInputH, sizeof(mouseScrollInputH));
+		SendInput(1, &mouseScrollInputV, sizeof(mouseScrollInputV));
+#endif
 }
 
 /*

src/mouse.h

@@ -90,7 +90,7 @@ void doubleClick(MMMouseButton button);
 
 /* Scrolls the mouse in the stated direction. 
  * TODO: Add a smoothly scroll mouse next. */
-void scrollMouse(int scrollMagnitude, MMMouseWheelDirection scrollDirection);
+void scrollMouse(int x, int y);
 
 #endif /* MOUSE_H */
 

src/robotjs.cc

@@ -240,41 +240,17 @@ NAN_METHOD(setMouseDelay)
 
 NAN_METHOD(scrollMouse) 
 {
-	Nan::HandleScope scope;
-
-	//Get the values of magnitude and direction from the arguments list.
-	if(info.Length() == 2)	
-	{
-		int scrollMagnitude = info[0]->Int32Value();
-		char *s;
-
-		Nan::Utf8String sstr(info[1]);
-		s = *sstr;
-
-		MMMouseWheelDirection scrollDirection;
-
-		if (strcmp(s, "up") == 0)
-		{
-			scrollDirection = DIRECTION_UP;
-		}
-		else if (strcmp(s, "down") == 0)
-		{
-			scrollDirection = DIRECTION_DOWN;
-		}
-		else
-		{
-			return Nan::ThrowError("Invalid scroll direction specified.");
-		}
-
-		scrollMouse(scrollMagnitude, scrollDirection);
-		microsleep(mouseDelay);
-
-		info.GetReturnValue().Set(Nan::New(1));
-	} 
-	else 
-	{
-		return Nan::ThrowError("Invalid number of arguments.");
-	}
+  if (info.Length() != 2)
+  {
+    return Nan::ThrowError("Invalid number of arguments.");
+  }
+  int x = info[0]->Int32Value();
+  int y = info[1]->Int32Value();
+
+  scrollMouse(x, y);
+  microsleep(mouseDelay);
+
+  info.GetReturnValue().Set(Nan::New(1));
 }
 /*
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