/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights.  These rights are described in the Nokia Qt LGPL
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qaccessible2.h"
#include "qapplication.h"
#include "qclipboard.h"

#ifndef QT_NO_ACCESSIBILITY

QT_BEGIN_NAMESPACE

/*!
    \namespace QAccessible2
    \ingroup accessibility
    \internal
    \preliminary

    \brief The QAccessible2 namespace defines constants relating to
    IAccessible2-based interfaces

    \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
*/

/*!
    \class QAccessibleTextInterface

    \ingroup accessibility
    \internal
    \preliminary

    \brief The QAccessibleTextInterface class implements support for
    the IAccessibleText interface.

    \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
*/

/*!
    \class QAccessibleEditableTextInterface
    \ingroup accessibility
    \internal
    \preliminary

    \brief The QAccessibleEditableTextInterface class implements support for
    the IAccessibleEditableText interface.

    \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
*/

/*!
    \class QAccessibleSimpleEditableTextInterface
    \ingroup accessibility
    \internal
    \preliminary

    \brief The QAccessibleSimpleEditableTextInterface class is a convenience class for
    text-based widgets.

    \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
*/

/*!
    \class QAccessibleValueInterface
    \ingroup accessibility
    \internal
    \preliminary

    \brief The QAccessibleValueInterface class implements support for
    the IAccessibleValue interface.

    \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
*/

QAccessibleSimpleEditableTextInterface::QAccessibleSimpleEditableTextInterface(
                QAccessibleInterface *accessibleInterface)
    : iface(accessibleInterface)
{
    Q_ASSERT(iface);
}

#ifndef QT_NO_CLIPBOARD
static QString textForRange(QAccessibleInterface *iface, int startOffset, int endOffset)
{
    return iface->text(QAccessible::Value, 0).mid(startOffset, endOffset - startOffset);
}
#endif

void QAccessibleSimpleEditableTextInterface::copyText(int startOffset, int endOffset)
{
#ifdef QT_NO_CLIPBOARD
    Q_UNUSED(startOffset);
    Q_UNUSED(endOffset);
#else
    QApplication::clipboard()->setText(textForRange(iface, startOffset, endOffset));
#endif
}

void QAccessibleSimpleEditableTextInterface::deleteText(int startOffset, int endOffset)
{
    QString txt = iface->text(QAccessible::Value, 0);
    txt.remove(startOffset, endOffset - startOffset);
    iface->setText(QAccessible::Value, 0, txt);
}

void QAccessibleSimpleEditableTextInterface::insertText(int offset, const QString &text)
{
    QString txt = iface->text(QAccessible::Value, 0);
    txt.insert(offset, text);
    iface->setText(QAccessible::Value, 0, txt);
}

void QAccessibleSimpleEditableTextInterface::cutText(int startOffset, int endOffset)
{
#ifdef QT_NO_CLIPBOARD
    Q_UNUSED(startOffset);
    Q_UNUSED(endOffset);
#else
    QString sub = textForRange(iface, startOffset, endOffset);
    deleteText(startOffset, endOffset);
    QApplication::clipboard()->setText(sub);
#endif
}

void QAccessibleSimpleEditableTextInterface::pasteText(int offset)
{
#ifdef QT_NO_CLIPBOARD
    Q_UNUSED(offset);
#else
    QString txt = iface->text(QAccessible::Value, 0);
    txt.insert(offset, QApplication::clipboard()->text());
    iface->setText(QAccessible::Value, 0, txt);
#endif
}

void QAccessibleSimpleEditableTextInterface::replaceText(int startOffset, int endOffset, const QString &text)
{
    QString txt = iface->text(QAccessible::Value, 0);
    txt.replace(startOffset, endOffset - startOffset, text);
    iface->setText(QAccessible::Value, 0, txt);
}

QT_END_NAMESPACE

#endif // QT_NO_ACCESSIBILITY