24 lines
704 B
C++
24 lines
704 B
C++
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsIScrollPositionListener_h___
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#define nsIScrollPositionListener_h___
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#include "nsCoord.h"
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/**
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* Provides a way to learn about scroll position changes of nsIScrollableFrame's.
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*/
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class nsIScrollPositionListener {
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public:
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virtual void ScrollPositionWillChange(nscoord aX, nscoord aY) = 0;
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virtual void ScrollPositionDidChange(nscoord aX, nscoord aY) = 0;
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};
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#endif /* nsIScrollPositionListener_h___ */
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