mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-11 16:32:59 +00:00
36 lines
1023 B
C++
36 lines
1023 B
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nsIScrollbarOwner_h___
|
|
#define nsIScrollbarOwner_h___
|
|
|
|
#include "nsQueryFrame.h"
|
|
|
|
class nsIDOMEventTarget;
|
|
class nsIFrame;
|
|
|
|
/**
|
|
* An interface that represents a frame which manages scrollbars.
|
|
*/
|
|
class nsIScrollbarOwner : public nsQueryFrame {
|
|
public:
|
|
NS_DECL_QUERYFRAME_TARGET(nsIScrollbarOwner)
|
|
|
|
/**
|
|
* Obtain the frame for the horizontal or vertical scrollbar, or null
|
|
* if there is no such box.
|
|
*/
|
|
virtual nsIFrame* GetScrollbarBox(bool aVertical) = 0;
|
|
|
|
/**
|
|
* Show or hide scrollbars on 2 fingers touch.
|
|
* Subclasses should call their ScrollbarActivity's corresponding methods.
|
|
*/
|
|
virtual void ScrollbarActivityStarted() const = 0;
|
|
virtual void ScrollbarActivityStopped() const = 0;
|
|
};
|
|
|
|
#endif
|