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/****************************************************************************
**
** Copyright (C) 2016 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QWINDOWSMSAAACCESSIBLE_H
#define QWINDOWSMSAAACCESSIBLE_H
#include <QtCore/QtConfig>
#ifndef QT_NO_ACCESSIBILITY
#include <QtCore/qglobal.h>
#include "../qtwindows_additional.h"
#include <QtCore/qsharedpointer.h>
#include <QtGui/qaccessible.h>
#ifndef Q_CC_MINGW
# include <oleacc.h>
# include "ia2_api_all.h" // IAccessible2 inherits from IAccessible
#else
// MinGW
# include <basetyps.h>
# include <oleacc.h>
#endif
QT_BEGIN_NAMESPACE
#ifndef QT_NO_DEBUG_OUTPUT
#define DEBUG_SHOW_ATCLIENT_COMMANDS
#endif
#if defined(DEBUG_SHOW_ATCLIENT_COMMANDS)
void accessibleDebugClientCalls_helper(const char* funcName, const QAccessibleInterface *iface);
# define accessibleDebugClientCalls(iface) accessibleDebugClientCalls_helper(Q_FUNC_INFO, iface)
#else
# define accessibleDebugClientCalls(iface)
#endif
QWindow *window_helper(const QAccessibleInterface *iface);
/**************************************************************\
* QWindowsAccessible *
**************************************************************/
class QWindowsMsaaAccessible : public
#ifdef Q_CC_MINGW
IAccessible
#else
IAccessible2
#endif
, public IOleWindow
{
public:
QWindowsMsaaAccessible(QAccessibleInterface *a)
: ref(0)
{
id = QAccessible::uniqueId(a);
}
virtual ~QWindowsMsaaAccessible()
{
}
/* IUnknown */
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID *);
ULONG STDMETHODCALLTYPE AddRef();
ULONG STDMETHODCALLTYPE Release();
/* IDispatch */
HRESULT STDMETHODCALLTYPE GetTypeInfoCount(unsigned int *);
HRESULT STDMETHODCALLTYPE GetTypeInfo(unsigned int, unsigned long, ITypeInfo **);
HRESULT STDMETHODCALLTYPE GetIDsOfNames(const _GUID &, wchar_t **, unsigned int, unsigned long, long *);
HRESULT STDMETHODCALLTYPE Invoke(long, const _GUID &, unsigned long, unsigned short, tagDISPPARAMS *, tagVARIANT *, tagEXCEPINFO *, unsigned int *);
/* IAccessible */
HRESULT STDMETHODCALLTYPE accHitTest(long xLeft, long yTop, VARIANT *pvarID);
HRESULT STDMETHODCALLTYPE accLocation(long *pxLeft, long *pyTop, long *pcxWidth, long *pcyHeight, VARIANT varID);
HRESULT STDMETHODCALLTYPE accNavigate(long navDir, VARIANT varStart, VARIANT *pvarEnd);
HRESULT STDMETHODCALLTYPE get_accChild(VARIANT varChildID, IDispatch** ppdispChild);
HRESULT STDMETHODCALLTYPE get_accChildCount(long* pcountChildren);
HRESULT STDMETHODCALLTYPE get_accParent(IDispatch** ppdispParent);
HRESULT STDMETHODCALLTYPE accDoDefaultAction(VARIANT varID);
HRESULT STDMETHODCALLTYPE get_accDefaultAction(VARIANT varID, BSTR* pszDefaultAction);
HRESULT STDMETHODCALLTYPE get_accDescription(VARIANT varID, BSTR* pszDescription);
HRESULT STDMETHODCALLTYPE get_accHelp(VARIANT varID, BSTR *pszHelp);
HRESULT STDMETHODCALLTYPE get_accHelpTopic(BSTR *pszHelpFile, VARIANT varChild, long *pidTopic);
HRESULT STDMETHODCALLTYPE get_accKeyboardShortcut(VARIANT varID, BSTR *pszKeyboardShortcut);
HRESULT STDMETHODCALLTYPE get_accName(VARIANT varID, BSTR* pszName);
HRESULT STDMETHODCALLTYPE put_accName(VARIANT varChild, BSTR szName);
HRESULT STDMETHODCALLTYPE get_accRole(VARIANT varID, VARIANT *pvarRole);
HRESULT STDMETHODCALLTYPE get_accState(VARIANT varID, VARIANT *pvarState);
HRESULT STDMETHODCALLTYPE get_accValue(VARIANT varID, BSTR* pszValue);
HRESULT STDMETHODCALLTYPE put_accValue(VARIANT varChild, BSTR szValue);
HRESULT STDMETHODCALLTYPE accSelect(long flagsSelect, VARIANT varID);
HRESULT STDMETHODCALLTYPE get_accFocus(VARIANT *pvarID);
HRESULT STDMETHODCALLTYPE get_accSelection(VARIANT *pvarChildren);
/* IOleWindow */
HRESULT STDMETHODCALLTYPE GetWindow(HWND *phwnd);
HRESULT STDMETHODCALLTYPE ContextSensitiveHelp(BOOL fEnterMode);
protected:
virtual QByteArray IIDToString(REFIID id);
QAccessible::Id id;
QAccessibleInterface *accessibleInterface() const
{
QAccessibleInterface *iface = QAccessible::accessibleInterface(id);
if (iface && iface->isValid())
return iface;
return 0;
}
static QAccessibleInterface *childPointer(QAccessibleInterface *parent, VARIANT varID)
{
// -1 since windows API always uses 1 for the first child
Q_ASSERT(parent);
QAccessibleInterface *acc = 0;
int childIndex = varID.lVal;
if (childIndex == 0) {
// Yes, some AT clients (Active Accessibility Object Inspector)
// actually ask for the same object. As a consequence, we need to clone ourselves:
acc = parent;
} else if (childIndex < 0) {
acc = QAccessible::accessibleInterface((QAccessible::Id)childIndex);
} else {
acc = parent->child(childIndex - 1);
}
return acc;
}
private:
ULONG ref;
};
QT_END_NAMESPACE
#endif //QT_NO_ACCESSIBILITY
#endif // QWINDOWSMSAAACCESSIBLE_H
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