gecko-dev/widget/public/nsINativeScrollbar.idl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License
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*
* The Original Code is mozilla.org code.
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* The Initial Developer of the Original Code is
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*
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#include "nsISupports.idl"
/**
* The nsINativeScrollbar is implemented internally by Gecko as a way
* to communicate between a Gecko frame and a native scrollbar for
* purposes of shimming a native OS scrollbar into the GFX scrollframe
* mechanism.
*
*/
interface nsPresContext;
interface nsIFrame;
interface nsIContent;
interface nsIScrollbarMediator;
[uuid(b77380bc-610b-49e3-8df7-18cc946285c5)]
interface nsINativeScrollbar : nsISupports
{
void setContent ( in nsIContent content, in nsISupports scrollbar, in nsIScrollbarMediator mediator);
readonly attribute long narrowSize; // the width of a vertical scrollbar, height of horizontal
attribute unsigned long position; // current position of the scrollbar
attribute unsigned long maxRange; // max value of the scrollbar
attribute unsigned long lineIncrement; // number of pixels to scroll per "line" (one click of scroll arrow)
attribute unsigned long viewSize; // size of the visible area we're scrolling (in pixels)
};