[2] | 1 | /****************************************************************************
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| 2 | **
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[846] | 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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[561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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[2] | 6 | **
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| 7 | ** This file is part of the QtGui module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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[561] | 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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[2] | 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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[561] | 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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[2] | 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | #include "qaccessiblebridge.h"
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| 43 |
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| 44 | #ifndef QT_NO_ACCESSIBILITY
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| 45 |
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| 46 | QT_BEGIN_NAMESPACE
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| 47 |
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| 48 | /*!
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| 49 | \class QAccessibleBridge
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| 50 | \brief The QAccessibleBridge class is the base class for
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| 51 | accessibility back-ends.
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| 52 |
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| 53 | \ingroup accessibility
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| 54 |
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| 55 | Qt supports Microsoft Active Accessibility (MSAA), Mac OS X
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| 56 | Accessibility, and the Unix/X11 AT-SPI standard. By subclassing
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| 57 | QAccessibleBridge, you can support other backends than the
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| 58 | predefined ones.
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| 59 |
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[618] | 60 | Currently, custom bridges are only supported on Unix and OS/2. We might
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[2] | 61 | add support for them on other platforms as well if there is
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| 62 | enough demand.
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| 63 |
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| 64 | \sa QAccessible, QAccessibleBridgePlugin
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| 65 | */
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| 66 |
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| 67 | /*!
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| 68 | \fn QAccessibleBridge::~QAccessibleBridge()
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| 69 |
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| 70 | Destroys the accessibility bridge object.
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| 71 | */
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| 72 |
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| 73 | /*!
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| 74 | \fn void QAccessibleBridge::setRootObject(QAccessibleInterface *object)
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| 75 |
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| 76 | This function is called by Qt at application startup to set the
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| 77 | root accessible object of the application to \a object. All other
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| 78 | accessible objects in the application can be reached by the
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| 79 | client using object navigation.
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| 80 | */
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| 81 |
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| 82 | /*!
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| 83 | \fn void QAccessibleBridge::notifyAccessibilityUpdate(int reason, QAccessibleInterface *interface, int child)
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| 84 |
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| 85 | This function is called by Qt to notify the bridge about a change
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| 86 | in the accessibility information for object wrapped by the given
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| 87 | \a interface.
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| 88 |
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| 89 | \a reason specifies the cause of the change. It can take values
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| 90 | of type QAccessible::Event.
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| 91 |
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| 92 | \a child is the (1-based) index of the child element that has
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| 93 | changed. When \a child is 0, the object itself has changed.
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| 94 |
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| 95 | \sa QAccessible::updateAccessibility()
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| 96 | */
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| 97 |
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| 98 | /*!
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| 99 | \class QAccessibleBridgePlugin
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| 100 | \brief The QAccessibleBridgePlugin class provides an abstract
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| 101 | base for accessibility bridge plugins.
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| 102 |
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| 103 | \ingroup plugins
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| 104 | \ingroup accessibility
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| 105 |
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| 106 | Writing an accessibility bridge plugin is achieved by subclassing
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| 107 | this base class, reimplementing the pure virtual functions keys()
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| 108 | and create(), and exporting the class with the
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| 109 | Q_EXPORT_PLUGIN2() macro.
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| 110 |
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| 111 | \sa QAccessibleBridge, QAccessiblePlugin, {How to Create Qt Plugins}
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| 112 | */
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| 113 |
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| 114 | /*!
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| 115 | Constructs an accessibility bridge plugin with the given \a
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| 116 | parent. This is invoked automatically by the Q_EXPORT_PLUGIN2()
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| 117 | macro.
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| 118 | */
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| 119 | QAccessibleBridgePlugin::QAccessibleBridgePlugin(QObject *parent)
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| 120 | : QObject(parent)
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| 121 | {
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| 122 |
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| 123 | }
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| 124 |
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| 125 | /*!
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| 126 | Destroys the accessibility bridge plugin.
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| 127 |
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| 128 | You never have to call this explicitly. Qt destroys a plugin
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| 129 | automatically when it is no longer used.
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| 130 | */
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| 131 | QAccessibleBridgePlugin::~QAccessibleBridgePlugin()
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| 132 | {
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| 133 |
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| 134 | }
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| 135 |
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| 136 | /*!
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| 137 | \fn QStringList QAccessibleBridgePlugin::keys() const
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| 138 |
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| 139 | Returns the list of keys this plugins supports.
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| 140 |
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| 141 | These keys must be the names of the bridges that this
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| 142 | plugin provides.
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| 143 |
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| 144 | \sa create()
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| 145 | */
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| 146 |
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| 147 | /*!
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| 148 | \fn QAccessibleBridge *QAccessibleBridgePlugin::create(const QString &key)
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| 149 |
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| 150 | Creates and returns the QAccessibleBridge object corresponding to
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| 151 | the given \a key. Keys are case sensitive.
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| 152 |
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| 153 | \sa keys()
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| 154 | */
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| 155 |
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| 156 | QT_END_NAMESPACE
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| 157 |
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| 158 | #endif // QT_NO_ACCESSIBILITY
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