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Diffstat (limited to 'src/platformsupport/windowsuiautomation/qwindowsuiawrapper.cpp')
-rw-r--r-- | src/platformsupport/windowsuiautomation/qwindowsuiawrapper.cpp | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/platformsupport/windowsuiautomation/qwindowsuiawrapper.cpp b/src/platformsupport/windowsuiautomation/qwindowsuiawrapper.cpp new file mode 100644 index 0000000000..79541fe636 --- /dev/null +++ b/src/platformsupport/windowsuiautomation/qwindowsuiawrapper.cpp @@ -0,0 +1,117 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** 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 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <initguid.h> + +#include "qwindowsuiawrapper_p.h" +#include <QtCore/private/qsystemlibrary_p.h> + +QT_BEGIN_NAMESPACE + +// private constructor +QWindowsUiaWrapper::QWindowsUiaWrapper() +{ + QSystemLibrary uiaLib(QStringLiteral("UIAutomationCore")); + if (uiaLib.load()) { + m_pUiaReturnRawElementProvider = reinterpret_cast<PtrUiaReturnRawElementProvider>(uiaLib.resolve("UiaReturnRawElementProvider")); + m_pUiaHostProviderFromHwnd = reinterpret_cast<PtrUiaHostProviderFromHwnd>(uiaLib.resolve("UiaHostProviderFromHwnd")); + m_pUiaRaiseAutomationPropertyChangedEvent = reinterpret_cast<PtrUiaRaiseAutomationPropertyChangedEvent>(uiaLib.resolve("UiaRaiseAutomationPropertyChangedEvent")); + m_pUiaRaiseAutomationEvent = reinterpret_cast<PtrUiaRaiseAutomationEvent>(uiaLib.resolve("UiaRaiseAutomationEvent")); + m_pUiaClientsAreListening = reinterpret_cast<PtrUiaClientsAreListening>(uiaLib.resolve("UiaClientsAreListening")); + } +} + +QWindowsUiaWrapper::~QWindowsUiaWrapper() +{ +} + +// shared instance +QWindowsUiaWrapper *QWindowsUiaWrapper::instance() +{ + static QWindowsUiaWrapper wrapper; + return &wrapper; +} + +// True if all symbols resolved. +BOOL QWindowsUiaWrapper::ready() +{ + return m_pUiaReturnRawElementProvider + && m_pUiaHostProviderFromHwnd + && m_pUiaRaiseAutomationPropertyChangedEvent + && m_pUiaRaiseAutomationEvent + && m_pUiaClientsAreListening; +} + +BOOL QWindowsUiaWrapper::clientsAreListening() +{ + if (!m_pUiaClientsAreListening) + return FALSE; + return m_pUiaClientsAreListening(); +} + +LRESULT QWindowsUiaWrapper::returnRawElementProvider(HWND hwnd, WPARAM wParam, LPARAM lParam, IRawElementProviderSimple *el) +{ + if (!m_pUiaReturnRawElementProvider) + return static_cast<LRESULT>(NULL); + return m_pUiaReturnRawElementProvider(hwnd, wParam, lParam, el); +} + +HRESULT QWindowsUiaWrapper::hostProviderFromHwnd(HWND hwnd, IRawElementProviderSimple **ppProvider) +{ + if (!m_pUiaHostProviderFromHwnd) + return UIA_E_NOTSUPPORTED; + return m_pUiaHostProviderFromHwnd(hwnd, ppProvider); +} + +HRESULT QWindowsUiaWrapper::raiseAutomationPropertyChangedEvent(IRawElementProviderSimple *pProvider, PROPERTYID id, VARIANT oldValue, VARIANT newValue) +{ + if (!m_pUiaRaiseAutomationPropertyChangedEvent) + return UIA_E_NOTSUPPORTED; + return m_pUiaRaiseAutomationPropertyChangedEvent(pProvider, id, oldValue, newValue); +} + +HRESULT QWindowsUiaWrapper::raiseAutomationEvent(IRawElementProviderSimple *pProvider, EVENTID id) +{ + if (!m_pUiaRaiseAutomationEvent) + return UIA_E_NOTSUPPORTED; + return m_pUiaRaiseAutomationEvent(pProvider, id); +} + +QT_END_NAMESPACE + |