diff options
Diffstat (limited to 'src/plugins/platforms/windows/uiautomation/qwindowsuiatextrangeprovider.cpp')
| -rw-r--r-- | src/plugins/platforms/windows/uiautomation/qwindowsuiatextrangeprovider.cpp | 93 |
1 files changed, 51 insertions, 42 deletions
diff --git a/src/plugins/platforms/windows/uiautomation/qwindowsuiatextrangeprovider.cpp b/src/plugins/platforms/windows/uiautomation/qwindowsuiatextrangeprovider.cpp index 3465c55bc4..a62a33cfe2 100644 --- a/src/plugins/platforms/windows/uiautomation/qwindowsuiatextrangeprovider.cpp +++ b/src/plugins/platforms/windows/uiautomation/qwindowsuiatextrangeprovider.cpp @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the plugins 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 The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/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 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2017 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 <QtGui/qtguiglobal.h> #if QT_CONFIG(accessibility) @@ -203,6 +167,15 @@ HRESULT STDMETHODCALLTYPE QWindowsUiaTextRangeProvider::GetAttributeValue(TEXTAT else setVariantI4(CaretPosition_Unknown, pRetVal); break; + case UIA_StrikethroughStyleAttributeId: + { + const QString value = valueForIA2Attribute(textInterface, QStringLiteral("text-line-through-type")); + if (value.isEmpty()) + break; + const TextDecorationLineStyle uiaLineStyle = uiaLineStyleForIA2LineStyle(value); + setVariantI4(uiaLineStyle, pRetVal); + break; + } default: break; } @@ -343,14 +316,14 @@ HRESULT QWindowsUiaTextRangeProvider::Move(TextUnit unit, int count, int *pRetVa int len = textInterface->characterCount(); - if (len < 1) + if (len < 1 || count == 0) // MSDN: "Zero has no effect." return S_OK; if (unit == TextUnit_Character) { // Moves the start point, ensuring it lies within the bounds. - int start = qBound(0, m_startOffset + count, len - 1); + int start = qBound(0, m_startOffset + count, len); // If range was initially empty, leaves it as is; otherwise, normalizes it to one char. - m_endOffset = (m_endOffset > m_startOffset) ? start + 1 : start; + m_endOffset = (m_endOffset > m_startOffset) ? qMin(start + 1, len) : start; *pRetVal = start - m_startOffset; // Returns the actually moved distance. m_startOffset = start; } else { @@ -421,7 +394,7 @@ HRESULT QWindowsUiaTextRangeProvider::MoveEndpointByUnit(TextPatternRangeEndpoin if (unit == TextUnit_Character) { if (endpoint == TextPatternRangeEndpoint_Start) { - int boundedValue = qBound(0, m_startOffset + count, len - 1); + int boundedValue = qBound(0, m_startOffset + count, len); *pRetVal = boundedValue - m_startOffset; m_startOffset = boundedValue; m_endOffset = qBound(m_startOffset, m_endOffset, len); @@ -553,6 +526,42 @@ HRESULT QWindowsUiaTextRangeProvider::unselect() return S_OK; } +// helper method to retrieve the value of the given IAccessible2 text attribute, +// or an empty string if not set +QString QWindowsUiaTextRangeProvider::valueForIA2Attribute(QAccessibleTextInterface *textInterface, + const QString &key) +{ + Q_ASSERT(textInterface); + + int startOffset; + int endOffset; + const QString attributes = textInterface->attributes(m_startOffset, &startOffset, &endOffset); + // don't report if attributes don't apply for the whole range + if (startOffset > m_startOffset || endOffset < m_endOffset) + return {}; + + for (auto attr : QStringTokenizer{attributes, u';'}) + { + const QList<QStringView> items = attr.split(u':', Qt::SkipEmptyParts, Qt::CaseSensitive); + if (items.count() == 2 && items[0] == key) + return items[1].toString(); + } + + return {}; +} + +TextDecorationLineStyle QWindowsUiaTextRangeProvider::uiaLineStyleForIA2LineStyle(const QString &ia2LineStyle) +{ + if (ia2LineStyle == QStringLiteral("none")) + return TextDecorationLineStyle_None; + if (ia2LineStyle == QStringLiteral("single")) + return TextDecorationLineStyle_Single; + if (ia2LineStyle == QStringLiteral("double")) + return TextDecorationLineStyle_Double; + + return TextDecorationLineStyle_Other; +} + QT_END_NAMESPACE #endif // QT_CONFIG(accessibility) |