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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qaccessiblehelper_p.h"
#include <QtGui/qtextcursor.h>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
/* This function will return the offset of the '&' in the text that would be
preceding the accelerator character.
If this text does not have an accelerator, -1 will be returned. */
static qsizetype qt_accAmpIndex(const QString &text)
{
#ifndef QT_NO_SHORTCUT
if (text.isEmpty())
return -1;
qsizetype fa = 0;
while ((fa = text.indexOf(u'&', fa)) != -1) {
++fa;
if (fa < text.size()) {
// ignore "&&"
if (text.at(fa) == u'&') {
++fa;
continue;
} else {
return fa - 1;
break;
}
}
}
return -1;
#else
Q_UNUSED(text);
return -1;
#endif
}
QString qt_accStripAmp(const QString &text)
{
QString newText(text);
qsizetype ampIndex = qt_accAmpIndex(newText);
if (ampIndex != -1)
newText.remove(ampIndex, 1);
return newText.replace("&&"_L1, "&"_L1);
}
QString qt_accTextBeforeOffsetHelper(const QAccessibleTextInterface &textInterface,
const QTextCursor &textCursor, int offset,
QAccessible::TextBoundaryType boundaryType, int *startOffset,
int *endOffset)
{
Q_ASSERT(startOffset);
Q_ASSERT(endOffset);
*startOffset = *endOffset = -1;
QTextCursor cursor = textCursor;
cursor.setPosition(offset);
std::pair<int, int> boundaries =
QAccessible::qAccessibleTextBoundaryHelper(cursor, boundaryType);
if (boundaries.second > offset) {
cursor.setPosition(boundaries.first);
while (boundaries.second > offset) {
if (!cursor.movePosition(QTextCursor::PreviousCharacter))
return QString();
boundaries = QAccessible::qAccessibleTextBoundaryHelper(cursor, boundaryType);
}
}
*startOffset = boundaries.first;
*endOffset = boundaries.second;
return textInterface.text(boundaries.first, boundaries.second);
}
QString qt_accTextAfterOffsetHelper(const QAccessibleTextInterface &textInterface,
const QTextCursor &textCursor, int offset,
QAccessible::TextBoundaryType boundaryType, int *startOffset,
int *endOffset)
{
Q_ASSERT(startOffset);
Q_ASSERT(endOffset);
*startOffset = *endOffset = -1;
QTextCursor cursor = textCursor;
cursor.setPosition(offset);
std::pair<int, int> boundaries =
QAccessible::qAccessibleTextBoundaryHelper(cursor, boundaryType);
if (boundaries.first <= offset) {
cursor.setPosition(boundaries.second);
while (boundaries.first <= offset) {
if (!cursor.movePosition(QTextCursor::NextCharacter))
return QString();
boundaries = QAccessible::qAccessibleTextBoundaryHelper(cursor, boundaryType);
}
}
*startOffset = boundaries.first;
*endOffset = boundaries.second;
return textInterface.text(boundaries.first, boundaries.second);
}
QString qt_accTextAtOffsetHelper(const QAccessibleTextInterface &textInterface,
const QTextCursor &textCursor, int offset,
QAccessible::TextBoundaryType boundaryType, int *startOffset,
int *endOffset)
{
Q_ASSERT(startOffset);
Q_ASSERT(endOffset);
QTextCursor cursor = textCursor;
cursor.setPosition(offset);
std::pair<int, int> boundaries =
QAccessible::qAccessibleTextBoundaryHelper(cursor, boundaryType);
*startOffset = boundaries.first;
*endOffset = boundaries.second;
return textInterface.text(boundaries.first, boundaries.second);
}
QT_END_NAMESPACE