author Jeff Walden <>
Thu, 15 May 2008 20:39:35 -0400
changeset 15126 9702ca54548102ae6f02d50cb6221a8ea043f877
parent 4685 1bd41e8f7d319b6103c08730cd5c5acac75bd894
child 15375 be010ac940e07c36dd7a986f2e03c2e13538e1a3
permissions -rw-r--r--
Add mozconfig, a lesser-known but ls-able alternative to .mozconfig, to the list of ignored files in .hgignore. r=dbaron

/* -*- Mode: Objective-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 Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 * The Original Code is code.
 * The Initial Developer of the Original Code is
 * Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2006
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 *   Original Author: HÃ¥kan Waara <>
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 * ***** END LICENSE BLOCK ***** */

/* For documentation of the accessibility architecture, 
 * see

#ifndef _nsAccessibleWrap_H_
#define _nsAccessibleWrap_H_

#include "nsCOMPtr.h"
#include "nsRect.h"

#include "nsTArray.h"
#include "nsAutoPtr.h"

#include "nsAccessible.h"

struct AccessibleWrapper;
struct objc_class;

class nsAccessibleWrap : public nsAccessible
  public: // construction, destruction
    nsAccessibleWrap(nsIDOMNode*, nsIWeakReference *aShell);
    virtual ~nsAccessibleWrap();
    // creates the native accessible connected to this one.
    NS_IMETHOD Init ();
    // get the native obj-c object (mozAccessible)
    NS_IMETHOD GetNativeInterface (void **aOutAccessible);
    // the objective-c |Class| type that this accessible's native object
    // should be instantied with.   used on runtime to determine the
    // right type for this accessible's associated native object.
    virtual objc_class* GetNativeType ();
    // returns a pointer to the native window for this accessible tree.
    void GetNativeWindow (void **aOutNativeWindow);
    virtual nsresult Shutdown ();
    virtual nsresult InvalidateChildren ();

    NS_IMETHOD FireAccessibleEvent(nsIAccessibleEvent *aEvent);
    // ignored means that the accessible might still have children, but is not displayed
    // to the user. it also has no native accessible object represented for it.
    PRBool IsIgnored();
    PRInt32 GetUnignoredChildCount(PRBool aDeepCount);
    PRBool HasPopup () {
      PRUint32 state = 0;
      GetState(&state, nsnull);
      return (state & nsIAccessibleStates::STATE_HASPOPUP);
    // return this accessible's all children, adhering to "flat" accessibles by not returning their children.
    void GetUnignoredChildren(nsTArray<nsRefPtr<nsAccessibleWrap> > &aChildrenArray);
    virtual already_AddRefed<nsIAccessible> GetUnignoredParent();
    PRBool AncestorIsFlat() {
      // we don't create a native object if we're child of a "flat" accessible; for example, on OS X buttons 
      // shouldn't have any children, because that makes the OS confused. 
      // to maintain a scripting environment where the XPCOM accessible hierarchy look the same 
      // on all platforms, we still let the C++ objects be created though.
      nsCOMPtr<nsIAccessible> curParent = GetParent();
      while (curParent) {
        if (MustPrune(curParent))
          return PR_TRUE;
        nsCOMPtr<nsIAccessible> newParent;
      // no parent was flat
      return PR_FALSE;

    // Wrapper around our native object.
    AccessibleWrapper *mNativeWrapper;

// Define unsupported wrap classes here
typedef class nsHTMLTableCellAccessible    nsHTMLTableCellAccessibleWrap;
typedef class nsHTMLTableAccessible        nsHTMLTableAccessibleWrap;