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189 lines
7.6 KiB
C++
189 lines
7.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 Corporation.
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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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* Eric Vaughan <evaughan@netscape.com> (original author)
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* Alexander Surkov <surkov.alexander@gmail.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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#ifndef _nsIAccessibilityService_h_
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#define _nsIAccessibilityService_h_
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#include "nsIAccessibleRetrieval.h"
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#include "nsIAccessibleEvent.h"
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#include "nsAutoPtr.h"
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class nsAccessible;
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class nsINode;
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class nsIContent;
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class nsIDocument;
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class nsIFrame;
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class nsIPresShell;
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class nsObjectFrame;
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// 10ff6dca-b219-4b64-9a4c-67a62b86edce
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#define NS_IACCESSIBILITYSERVICE_IID \
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{ 0x10ff6dca, 0xb219, 0x4b64, \
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{ 0x9a, 0x4c, 0x67, 0xa6, 0x2b, 0x86, 0xed, 0xce } }
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class nsIAccessibilityService : public nsIAccessibleRetrieval
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_IACCESSIBILITYSERVICE_IID)
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/**
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* Return an accessible object for a DOM node in the given pres shell.
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*
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* @param aNode [in] the DOM node to get an accessible for
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* @param aPresShell [in] the presentation shell which contains layout info
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* for the DOM node
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*/
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virtual nsAccessible* GetAccessibleInShell(nsINode* aNode,
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nsIPresShell* aPresShell) = 0;
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/**
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* Creates accessible for the given DOM node or frame.
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*/
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virtual already_AddRefed<nsAccessible>
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CreateHTMLBRAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTML4ButtonAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLButtonAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLCaptionAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLCheckboxAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLComboboxAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLGroupboxAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLHRAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLImageAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLLabelAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLLIAccessible(nsIContent* aContent, nsIPresShell* aPresShell,
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const nsAString& aBulletText) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLListboxAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLMediaAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLObjectFrameAccessible(nsObjectFrame* aFrame, nsIContent* aContent,
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nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLRadioButtonAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLTableAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLTableCellAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLTextAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHTMLTextFieldAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateHyperTextAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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virtual already_AddRefed<nsAccessible>
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CreateOuterDocAccessible(nsIContent* aContent, nsIPresShell* aPresShell) = 0;
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/**
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* Adds/remove ATK root accessible for gtk+ native window to/from children
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* of the application accessible.
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*/
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virtual nsAccessible* AddNativeRootAccessible(void* aAtkAccessible) = 0;
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virtual void RemoveNativeRootAccessible(nsAccessible* aRootAccessible) = 0;
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/**
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* Used to describe sort of changes leading to accessible tree invalidation.
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*/
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enum {
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NODE_APPEND = 0x01,
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NODE_REMOVE = 0x02,
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NODE_SIGNIFICANT_CHANGE = 0x03,
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FRAME_SHOW = 0x04,
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FRAME_HIDE = 0x05,
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FRAME_SIGNIFICANT_CHANGE = 0x06
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};
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/**
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* Invalidate the accessible tree when DOM tree or frame tree is changed.
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*
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* @param aPresShell [in] the presShell where changes occurred
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* @param aContent [in] the affected DOM content
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* @param aChangeType [in] the change type (see constants declared above)
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*/
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virtual nsresult InvalidateSubtreeFor(nsIPresShell *aPresShell,
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nsIContent *aContent,
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PRUint32 aChangeType) = 0;
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/**
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* Notify accessibility that anchor jump has been accomplished to the given
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* target. Used by layout.
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*/
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virtual void NotifyOfAnchorJumpTo(nsIContent *aTarget) = 0;
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/**
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* Notify the accessibility service that the given presshell is
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* being destroyed.
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*/
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virtual void PresShellDestroyed(nsIPresShell *aPresShell) = 0;
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/**
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* Fire accessible event of the given type for the given target.
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*
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* @param aEvent [in] accessible event type
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* @param aTarget [in] target of accessible event
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*/
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virtual nsresult FireAccessibleEvent(PRUint32 aEvent,
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nsIAccessible *aTarget) = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIAccessibilityService,
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NS_IACCESSIBILITYSERVICE_IID)
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// for component registration
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// {DE401C37-9A7F-4278-A6F8-3DE2833989EF}
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#define NS_ACCESSIBILITY_SERVICE_CID \
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{ 0xde401c37, 0x9a7f, 0x4278, { 0xa6, 0xf8, 0x3d, 0xe2, 0x83, 0x39, 0x89, 0xef } }
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extern nsresult
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NS_GetAccessibilityService(nsIAccessibilityService** aResult);
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#endif
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