root/public/platform/WebScrollbarBehavior.h

INCLUDED FROM

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef WebScrollbarBehavior_h
#define WebScrollbarBehavior_h

namespace blink {

struct WebPoint;
struct WebRect;

class WebScrollbarBehavior {
public:
    enum Button {
        ButtonNone = -1,
        ButtonLeft,
        ButtonMiddle,
        ButtonRight
    };
    virtual ~WebScrollbarBehavior() { }
    virtual bool shouldCenterOnThumb(Button, bool shiftKeyPressed, bool altKeyPressed) { return false; }
    virtual bool shouldSnapBackToDragOrigin(const WebPoint& eventPoint, const WebRect& scrollbarRect, bool isHorizontal) { return false; }
};

} // namespace blink

#endif