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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qaccessible2.h"
#include "qapplication.h"
#include "qclipboard.h"
#include "qtextboundaryfinder.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
*/
/*!
\class QAccessibleActionInterface
\ingroup accessibility
\internal
\preliminary
\brief The QAccessibleActionInterface class implements support for
the IAccessibleAction interface.
\link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
*/
/*!
\class QAccessibleImageInterface
\ingroup accessibility
\internal
\preliminary
\brief The QAccessibleImageInterface class implements support for
the IAccessibleImage interface.
\link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
*/
/*!
\internal
*/
QString Q_GUI_EXPORT qTextBeforeOffsetFromString(int offset, QAccessible2::BoundaryType boundaryType,
int *startOffset, int *endOffset, const QString& text)
{
QTextBoundaryFinder::BoundaryType type;
switch (boundaryType) {
case QAccessible2::CharBoundary:
type = QTextBoundaryFinder::Grapheme;
break;
case QAccessible2::WordBoundary:
type = QTextBoundaryFinder::Word;
break;
case QAccessible2::SentenceBoundary:
type = QTextBoundaryFinder::Sentence;
break;
default:
// in any other case return the whole line
*startOffset = 0;
*endOffset = text.length();
return text;
}
QTextBoundaryFinder boundary(type, text);
boundary.setPosition(offset);
if (!boundary.isAtBoundary()) {
boundary.toPreviousBoundary();
}
boundary.toPreviousBoundary();
*startOffset = boundary.position();
boundary.toNextBoundary();
*endOffset = boundary.position();
return text.mid(*startOffset, *endOffset - *startOffset);
}
/*!
\internal
*/
QString Q_GUI_EXPORT qTextAfterOffsetFromString(int offset, QAccessible2::BoundaryType boundaryType,
int *startOffset, int *endOffset, const QString& text)
{
QTextBoundaryFinder::BoundaryType type;
switch (boundaryType) {
case QAccessible2::CharBoundary:
type = QTextBoundaryFinder::Grapheme;
break;
case QAccessible2::WordBoundary:
type = QTextBoundaryFinder::Word;
break;
case QAccessible2::SentenceBoundary:
type = QTextBoundaryFinder::Sentence;
break;
default:
// in any other case return the whole line
*startOffset = 0;
*endOffset = text.length();
return text;
}
QTextBoundaryFinder boundary(type, text);
boundary.setPosition(offset);
boundary.toNextBoundary();
*startOffset = boundary.position();
boundary.toNextBoundary();
*endOffset = boundary.position();
return text.mid(*startOffset, *endOffset - *startOffset);
}
/*!
\internal
*/
QString Q_GUI_EXPORT qTextAtOffsetFromString(int offset, QAccessible2::BoundaryType boundaryType,
int *startOffset, int *endOffset, const QString& text)
{
QTextBoundaryFinder::BoundaryType type;
switch (boundaryType) {
case QAccessible2::CharBoundary:
type = QTextBoundaryFinder::Grapheme;
break;
case QAccessible2::WordBoundary:
type = QTextBoundaryFinder::Word;
break;
case QAccessible2::SentenceBoundary:
type = QTextBoundaryFinder::Sentence;
break;
default:
// in any other case return the whole line
*startOffset = 0;
*endOffset = text.length();
return text;
}
QTextBoundaryFinder boundary(type, text);
boundary.setPosition(offset);
if (!boundary.isAtBoundary()) {
boundary.toPreviousBoundary();
}
*startOffset = boundary.position();
boundary.toNextBoundary();
*endOffset = boundary.position();
return text.mid(*startOffset, *endOffset - *startOffset);
}
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
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