Revision control
++ // 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