2007-03-22 10:30:00 -07:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 mozilla.org code.
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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) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Aaron Leventhal (aaronl@netscape.com)
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* Kyle Yuan (kyle.yuan@sun.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 _nsHTMLTextAccessible_H_
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#define _nsHTMLTextAccessible_H_
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#include "nsTextAccessibleWrap.h"
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#include "nsAutoPtr.h"
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#include "nsBaseWidgetAccessible.h"
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class nsIWeakReference;
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class nsHTMLTextAccessible : public nsTextAccessibleWrap
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{
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public:
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nsHTMLTextAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);
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// nsIAccessible
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NS_IMETHOD GetName(nsAString& _retval);
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NS_IMETHOD GetState(PRUint32 *aState, PRUint32 *aExtraState);
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NS_IMETHOD GetRole(PRUint32 *aRole);
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virtual nsresult GetAttributesInternal(nsIPersistentProperties *aAttributes);
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};
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class nsHTMLHRAccessible : public nsLeafAccessible
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{
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public:
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nsHTMLHRAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);
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NS_IMETHOD GetRole(PRUint32 *aRole);
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};
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class nsHTMLBRAccessible : public nsLeafAccessible
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{
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public:
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nsHTMLBRAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);
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NS_IMETHOD GetRole(PRUint32 *aRole);
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NS_IMETHOD GetState(PRUint32 *aState, PRUint32 *aExtraState);
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NS_IMETHOD GetName(nsAString& aName);
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};
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class nsHTMLLabelAccessible : public nsTextAccessible
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{
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public:
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nsHTMLLabelAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell);
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NS_IMETHOD GetName(nsAString& _retval);
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NS_IMETHOD GetRole(PRUint32 *_retval);
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NS_IMETHOD GetState(PRUint32 *aState, PRUint32 *aExtraState);
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NS_IMETHOD GetFirstChild(nsIAccessible **aFirstChild);
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NS_IMETHOD GetLastChild(nsIAccessible **aLastChild);
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NS_IMETHOD GetChildCount(PRInt32 *aAccChildCount);
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};
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class nsHTMLListBulletAccessible : public nsLeafAccessible
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{
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public:
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nsHTMLListBulletAccessible(nsIDOMNode *aDOMNode, nsIWeakReference* aShell,
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const nsAString& aBulletText);
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// nsIAccessNode
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NS_IMETHOD GetUniqueID(void **aUniqueID);
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// nsPIAccessNode
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NS_IMETHOD Shutdown();
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// nsIAccessible
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NS_IMETHOD GetName(nsAString& aName);
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NS_IMETHOD GetRole(PRUint32 *aRole);
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NS_IMETHOD GetState(PRUint32 *aState, PRUint32 *aExtraState);
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// Don't cache via unique ID -- bullet accessible shares the same dom node as
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// this LI accessible. Also, don't cache via mParent/SetParent(), prevent
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// circular reference since li holds onto us.
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NS_IMETHOD SetParent(nsIAccessible *aParentAccessible);
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NS_IMETHOD GetParent(nsIAccessible **aParentAccessible);
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// nsPIAccessible
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NS_IMETHOD AppendTextTo(nsAString& aText, PRUint32 aStartOffset, PRUint32 aLength);
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protected:
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// XXX: Ideally we'd get the bullet text directly from the bullet frame via
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// nsBulletFrame::GetListItemText(), but we'd need an interface for getting
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// text from contentless anonymous frames. Perhaps something like
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// nsIAnonymousFrame::GetText() ? However, in practice storing the bullet text
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// here should not be a problem if we invalidate the right parts of
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// the accessibility cache when mutation events occur.
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nsIAccessible *mWeakParent;
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nsString mBulletText;
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};
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class nsHTMLListAccessible : public nsHyperTextAccessibleWrap
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{
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public:
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nsHTMLListAccessible(nsIDOMNode *aDOMNode, nsIWeakReference* aShell):
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nsHyperTextAccessibleWrap(aDOMNode, aShell) { }
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NS_IMETHOD GetRole(PRUint32 *aRole) { *aRole = nsIAccessibleRole::ROLE_LIST; return NS_OK; }
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NS_IMETHOD GetState(PRUint32 *aState, PRUint32 *aExtraState);
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};
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class nsHTMLLIAccessible : public nsLinkableAccessible
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{
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public:
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nsHTMLLIAccessible(nsIDOMNode *aDOMNode, nsIWeakReference* aShell,
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const nsAString& aBulletText);
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NS_IMETHOD Shutdown();
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NS_IMETHOD GetRole(PRUint32 *aRole) { *aRole = nsIAccessibleRole::ROLE_LISTITEM; return NS_OK; }
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NS_IMETHOD GetState(PRUint32 *aState, PRUint32 *aExtraState);
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NS_IMETHOD GetName(nsAString& aName) { aName.SetIsVoid(PR_TRUE); return mRoleMapEntry ? nsAccessible::GetName(aName) : NS_OK; }
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NS_IMETHOD GetBounds(PRInt32 *x, PRInt32 *y, PRInt32 *width, PRInt32 *height);
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void CacheChildren(); // Include bullet accessible
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protected:
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nsRefPtr<nsHTMLListBulletAccessible> mBulletAccessible;
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};
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#endif
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