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56 lines
2.1 KiB
Plaintext
56 lines
2.1 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: set ts=2 sw=2 et tw=78:
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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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#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.
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*/
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[scriptable, uuid(3507fc93-313e-4a4c-8ca8-4d0ea0f97315)]
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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 scrollbar can be in.
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* ScrollOrientation_X - Horizontal scrolling. When passing this
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* in to a method you are requesting or setting data for the
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* horizontal scrollbar.
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* ScrollOrientation_Y - Vertical scrolling. When passing this
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* in to a method you are requesting or setting data for the
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* vertical scrollbar.
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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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* Constants declaring the states of the scrollbars.
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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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* Get or set the default scrollbar state for all documents in
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* this shell.
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*/
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long getDefaultScrollbarPreferences(in long scrollOrientation);
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void setDefaultScrollbarPreferences(in long scrollOrientation,
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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. If you are only interested in one of the visibility
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* settings pass nullptr in for the one you aren't 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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