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129 lines
5.2 KiB
Plaintext
129 lines
5.2 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications, Inc.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Travis Bogard <travis@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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/**
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* The nsIScrollable is an interface that can be implemented by a control that
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* supports scrolling. This is a generic interface without concern for the
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* type of content that may be inside. It simply deals blindly with scroll
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* position as a composite of the lowest possible scroll position, the highest
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* possible position and the current position lying somewhere between the
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* min and the max.
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*/
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[scriptable, uuid(919e792a-6490-40b8-bba5-f9e9ad5640c8)]
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interface nsIScrollable : nsISupports
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{
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/*
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Constants declaring the two scroll orientations a scroll bar can be in.
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ScrollOrientation_X - Horizontal scrolling. When passing this
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in to a scroll position method you are requesting or
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setting the positions for the horizontal scroll bar.
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ScrollOrientation_Y - Vertical scrolling. When passing this
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in to a scroll position you are requesting or setting
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the positions for the vertical scroll bar.
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*/
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const long ScrollOrientation_X = 1;
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const long ScrollOrientation_Y = 2;
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/*
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Retrieves or Sets the current thumb position to the curPos passed in for the
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scrolling orientation passed in. curPos should be between minPos and maxPos.
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@return NS_OK - Setting or Getting completed successfully.
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NS_ERROR_INVALID_ARG - returned when curPos is not within the
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minPos and maxPos.
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*/
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long getCurScrollPos(in long scrollOrientation);
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void setCurScrollPos(in long scrollOrientation, in long curPos);
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/*
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This function atomizes the ability to scroll in two dimensions at the same
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time.
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*/
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void setCurScrollPosEx(in long curHorizontalPos, in long curVerticalPos);
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/*
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Retrieves or Sets the valid ranges for the thumb. When maxPos is set to
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something less than the current thumb position, curPos is set = to maxPos.
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@return NS_OK - Setting or Getting completed successfully.
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NS_ERROR_INVALID_ARG - returned when curPos is not within the
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minPos and maxPos.
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*/
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void getScrollRange(in long scrollOrientation, out long minPos, out long maxPos);
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void setScrollRange(in long scrollOrientation, in long minPos, in long maxPos);
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/*
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This function atomizes the ability to set the ranges in two dimensions at
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the same time.
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*/
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void setScrollRangeEx(in long minHorizontalPos, in long maxHorizontalPos,
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in long minVerticalPos, in long maxVerticalPos);
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/*
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Constants declaring the states of the scroll bars.
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ScrollPref_Auto - bars visible only when needed.
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ScrollPref_Never - bars never visible, even when scrolling still possible.
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ScrollPref_Always - bars always visible, even when scrolling is not possible
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*/
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const long Scrollbar_Auto = 1;
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const long Scrollbar_Never = 2;
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const long Scrollbar_Always = 3;
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/*
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Retrieves or Set the preferences for the scroll bar.
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current is 'scrolling preference for this document'
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default is 'scrolling preference for all documents in this shell'
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resetScrollbarPreferences resets current to default
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*/
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long getDefaultScrollbarPreferences(in long scrollOrientation);
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void setDefaultScrollbarPreferences(in long scrollOrientation, in long scrollbarPref);
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/*
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Get information about whether the vertical and horizontal scrollbars are
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currently visible. nsnull is a valid argument. If you are only interested
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in one of the visibility settings pass nsnull in for the one you aren't
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interested in.
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*/
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void getScrollbarVisibility(out boolean verticalVisible,
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out boolean horizontalVisible);
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};
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