LCOV - code coverage report
Current view: directory - accessible/src/html - nsHTMLImageAccessible.h (source / functions) Found Hit Coverage
Test: app.info Lines: 4 0 0.0 %
Date: 2012-06-02 Functions: 3 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Author: Aaron Leventhal (aaronl@netscape.com)
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #ifndef _nsHTMLImageAccessible_H_
      40                 : #define _nsHTMLImageAccessible_H_
      41                 : 
      42                 : #include "nsBaseWidgetAccessible.h"
      43                 : #include "nsIAccessibleImage.h"
      44                 : 
      45                 : /* Accessible for supporting images
      46                 :  * supports:
      47                 :  * - gets name, role
      48                 :  * - support basic state
      49                 :  */
      50                 : class nsHTMLImageAccessible : public nsLinkableAccessible,
      51                 :                               public nsIAccessibleImage
      52               0 : {
      53                 : public:
      54                 :   nsHTMLImageAccessible(nsIContent* aContent, nsDocAccessible* aDoc);
      55                 : 
      56                 :   // nsISupports
      57                 :   NS_DECL_ISUPPORTS_INHERITED
      58                 : 
      59                 :   // nsIAccessible
      60                 :   NS_IMETHOD GetActionName(PRUint8 aIndex, nsAString& aName);
      61                 :   NS_IMETHOD DoAction(PRUint8 index);
      62                 : 
      63                 :   // nsIAccessibleImage
      64                 :   NS_DECL_NSIACCESSIBLEIMAGE
      65                 : 
      66                 :   // nsAccessible
      67                 :   virtual nsresult GetNameInternal(nsAString& aName);
      68                 :   virtual mozilla::a11y::role NativeRole();
      69                 :   virtual PRUint64 NativeState();
      70                 :   virtual nsresult GetAttributesInternal(nsIPersistentProperties *aAttributes);
      71                 : 
      72                 :   // ActionAccessible
      73                 :   virtual PRUint8 ActionCount();
      74                 : 
      75                 : private:
      76                 :   /**
      77                 :    * Determine if this image accessible has a longdesc attribute.
      78                 :    *
      79                 :    * @returns  true if the longdesc attribute is present.
      80                 :    */
      81                 :   bool HasLongDesc();
      82                 :   
      83                 :   /**
      84                 :    * Used by GetActionName and DoAction to ensure the index for opening the
      85                 :    * longdesc URL is valid.
      86                 :    * It is always assumed that the highest possible index opens the longdesc.
      87                 :    *
      88                 :    * @param aIndex  The 0-based index to be tested.
      89                 :    *
      90                 :    * @returns  true if index is valid for longdesc action.
      91                 :    */
      92                 :   bool IsValidLongDescIndex(PRUint8 aIndex);
      93                 : };
      94                 : 
      95                 : ////////////////////////////////////////////////////////////////////////////////
      96                 : // nsAccessible downcasting method
      97                 : inline nsHTMLImageAccessible*
      98               0 : nsAccessible::AsImage()
      99                 : {
     100               0 :   return IsImageAccessible() ?
     101               0 :     static_cast<nsHTMLImageAccessible*>(this) : nsnull;
     102                 : }
     103                 : 
     104                 : #endif
     105                 : 

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