1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/generic/nsIScrollPositionListener.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,23 @@
1.4 +/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + *
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef nsIScrollPositionListener_h___
1.11 +#define nsIScrollPositionListener_h___
1.12 +
1.13 +#include "nsCoord.h"
1.14 +
1.15 +/**
1.16 + * Provides a way to learn about scroll position changes of nsIScrollableFrame's.
1.17 + */
1.18 +class nsIScrollPositionListener {
1.19 +public:
1.20 +
1.21 + virtual void ScrollPositionWillChange(nscoord aX, nscoord aY) = 0;
1.22 + virtual void ScrollPositionDidChange(nscoord aX, nscoord aY) = 0;
1.23 +};
1.24 +
1.25 +#endif /* nsIScrollPositionListener_h___ */
1.26 +
