1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2018 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the plugins of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #include <QtGui/qtguiglobal.h> 41 #if QT_CONFIG(accessibility) 42 43 #include "qwinrtuiametadatacache.h" 44 #include "qwinrtuiautils.h" 45 46 #include <QtCore/QLoggingCategory> 47 #include <QtCore/private/qeventdispatcher_winrt_p.h> 48 49 QT_BEGIN_NAMESPACE 50 51 using namespace QWinRTUiAutomation; 52 53 // Private constructor QWinRTUiaMetadataCache()54QWinRTUiaMetadataCache::QWinRTUiaMetadataCache() 55 { 56 } 57 58 // shared instance instance()59QWinRTUiaMetadataCache *QWinRTUiaMetadataCache::instance() 60 { 61 static QWinRTUiaMetadataCache metadataCache; 62 return &metadataCache; 63 } 64 65 // Returns the cached metadata associated with the ID, or an instance with default values. metadataForId(QAccessible::Id id)66QSharedPointer<QWinRTUiaControlMetadata> QWinRTUiaMetadataCache::metadataForId(QAccessible::Id id) 67 { 68 QSharedPointer<QWinRTUiaControlMetadata> metadata; 69 70 m_mutex.lock(); 71 if (m_metadataTable.contains(id)) 72 metadata = m_metadataTable[id]; 73 else 74 metadata = QSharedPointer<QWinRTUiaControlMetadata>(new QWinRTUiaControlMetadata); 75 m_mutex.unlock(); 76 return metadata; 77 } 78 79 // Caches metadata from the accessibility framework within the main thread. load(QAccessible::Id id)80bool QWinRTUiaMetadataCache::load(QAccessible::Id id) 81 { 82 qCDebug(lcQpaUiAutomation) << __FUNCTION__; 83 84 if (!SUCCEEDED(QEventDispatcherWinRT::runOnMainThread([id]() { 85 QWinRTUiaMetadataCache::instance()->insert(id, QSharedPointer<QWinRTUiaControlMetadata>(new QWinRTUiaControlMetadata(id))); 86 return S_OK; 87 }))) { 88 return false; 89 } 90 return true; 91 } 92 93 // Inserts metadata in the cache and associates it with an accessibility ID. insert(QAccessible::Id id,const QSharedPointer<QWinRTUiaControlMetadata> & metadata)94void QWinRTUiaMetadataCache::insert(QAccessible::Id id, const QSharedPointer<QWinRTUiaControlMetadata> &metadata) 95 { 96 m_mutex.lock(); 97 m_metadataTable[id] = metadata; 98 m_mutex.unlock(); 99 } 100 101 // Removes metadata with a given id from the cache. remove(QAccessible::Id id)102void QWinRTUiaMetadataCache::remove(QAccessible::Id id) 103 { 104 m_mutex.lock(); 105 m_metadataTable.remove(id); 106 m_mutex.unlock(); 107 } 108 109 QT_END_NAMESPACE 110 111 #endif // QT_CONFIG(accessibility) 112 113