1 /*

     2  * Copyright (C) 2008 Apple Ltd.

     3  * Copyright (C) 2008 Alp Toker <alp@atoker.com>

     4  *

     5  * This library is free software; you can redistribute it and/or

     6  * modify it under the terms of the GNU Library General Public

     7  * License as published by the Free Software Foundation; either

     8  * version 2 of the License, or (at your option) any later version.

     9  *

    10  * This library is distributed in the hope that it will be useful,

    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13  * Library General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU Library General Public License

    16  * along with this library; see the file COPYING.LIB.  If not, write to

    17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    18  * Boston, MA 02110-1301, USA.

    19  */

    20 

    21 #include "config.h"

    22 #include "AccessibilityObject.h"

    23 

    24 #include <glib-object.h>

    25 

    26 #if HAVE(ACCESSIBILITY)

    27 

    28 namespace WebCore {

    29 

    30 bool AccessibilityObject::accessibilityIgnoreAttachment() const

    31 {

    32     return false;

    33 }

    34 

    35 AccessibilityObjectInclusion AccessibilityObject::accessibilityPlatformIncludesObject() const

    36 {

    37     AccessibilityObject* parent = parentObject();

    38     if (!parent)

    39         return DefaultBehavior;

    40 

    41     if (roleValue() == SplitterRole)

    42         return IncludeObject;

    43 

    44     if (isGroup()) {

    45         // When a list item is made up entirely of children (e.g. paragraphs)

    46         // the list item gets ignored. We need it.

    47         if (parent->isList())

    48             return IncludeObject;

    49 

    50         // We expect the parent of a table cell to be a table.

    51         AccessibilityObject* child = firstChild();

    52         if (child && child->roleValue() == CellRole)

    53             return IgnoreObject;

    54     }

    55 

    56     // Entries and password fields have extraneous children which we want to ignore.

    57     if (parent->isPasswordField() || parent->isTextControl())

    58         return IgnoreObject;

    59 

    60     AccessibilityRole role = roleValue();

    61 

    62     // Include all tables, even layout tables. The AT can decide what to do with each.

    63     if (role == CellRole || role == TableRole)

    64         return IncludeObject;

    65 

    66     // We at some point might have a need to expose a table row; but it's not standard Gtk+.

    67     if (role == RowRole)

    68         return IgnoreObject;

    69 

    70     // The object containing the text should implement AtkText itself.

    71     if (role == StaticTextRole)

    72         return IgnoreObject;

    73 

    74     return DefaultBehavior;

    75 }

    76 

    77 AccessibilityObjectWrapper* AccessibilityObject::wrapper() const

    78 {

    79     return m_wrapper;

    80 }

    81 

    82 void AccessibilityObject::setWrapper(AccessibilityObjectWrapper* wrapper)

    83 {

    84     if (wrapper == m_wrapper)

    85         return;

    86 

    87     if (m_wrapper)

    88         g_object_unref(m_wrapper);

    89 

    90     m_wrapper = wrapper;

    91 

    92     if (m_wrapper)

    93         g_object_ref(m_wrapper);

    94 }

    95 

    96 } // namespace WebCore

    97 

    98 #endif // HAVE(ACCESSIBILITY)