diff options
Diffstat (limited to 'src/plugins/platforms/windows/qwindowsaccessibility.cpp')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowsaccessibility.cpp | 1406 |
1 files changed, 1406 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowsaccessibility.cpp b/src/plugins/platforms/windows/qwindowsaccessibility.cpp new file mode 100644 index 0000000000..fdc32730ad --- /dev/null +++ b/src/plugins/platforms/windows/qwindowsaccessibility.cpp @@ -0,0 +1,1406 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore/QtConfig> +#ifndef QT_NO_ACCESSIBILITY + + +#include "qwindowsaccessibility.h" +#include "qwindowscontext.h" + +#include <private/qsystemlibrary_p.h> + +#include <QtCore/qmap.h> +#include <QtCore/qsettings.h> +#include <QtCore/qpair.h> +#include <QtWidgets/qapplication.h> +#include <QtWidgets/qmessagebox.h> +#include <QtWidgets/qgraphicsitem.h> +#include <QtWidgets/qgraphicsview.h> +#include <QtGui/qaccessible.h> +#include <QtGui/qplatformnativeinterface_qpa.h> +#include <QtGui/qwindow.h> +#include "qt_windows.h" + +//#include <uiautomationcoreapi.h> +#ifndef UiaRootObjectId +#define UiaRootObjectId -25 +#endif + +#include <winuser.h> +#if !defined(WINABLEAPI) +# if defined(Q_WS_WINCE) +# include <bldver.h> +# endif +# include <winable.h> +#endif + +#include <oleacc.h> +#if !defined(Q_CC_BOR) && !defined (Q_CC_GNU) +#include <comdef.h> +#endif + +#ifdef Q_WS_WINCE +#include "qguifunctions_wince.h" +#endif + +QT_BEGIN_NAMESPACE + +//#define DEBUG_SHOW_ATCLIENT_COMMANDS +#ifdef DEBUG_SHOW_ATCLIENT_COMMANDS +QT_BEGIN_INCLUDE_NAMESPACE +#include <qdebug.h> +QT_END_INCLUDE_NAMESPACE + +static const char *roleString(QAccessible::Role role) +{ + static const char *roles[] = { + "NoRole" /* = 0x00000000 */, + "TitleBar" /* = 0x00000001 */, + "MenuBar" /* = 0x00000002 */, + "ScrollBar" /* = 0x00000003 */, + "Grip" /* = 0x00000004 */, + "Sound" /* = 0x00000005 */, + "Cursor" /* = 0x00000006 */, + "Caret" /* = 0x00000007 */, + "AlertMessage" /* = 0x00000008 */, + "Window" /* = 0x00000009 */, + "Client" /* = 0x0000000A */, + "PopupMenu" /* = 0x0000000B */, + "MenuItem" /* = 0x0000000C */, + "ToolTip" /* = 0x0000000D */, + "Application" /* = 0x0000000E */, + "Document" /* = 0x0000000F */, + "Pane" /* = 0x00000010 */, + "Chart" /* = 0x00000011 */, + "Dialog" /* = 0x00000012 */, + "Border" /* = 0x00000013 */, + "Grouping" /* = 0x00000014 */, + "Separator" /* = 0x00000015 */, + "ToolBar" /* = 0x00000016 */, + "StatusBar" /* = 0x00000017 */, + "Table" /* = 0x00000018 */, + "ColumnHeader" /* = 0x00000019 */, + "RowHeader" /* = 0x0000001A */, + "Column" /* = 0x0000001B */, + "Row" /* = 0x0000001C */, + "Cell" /* = 0x0000001D */, + "Link" /* = 0x0000001E */, + "HelpBalloon" /* = 0x0000001F */, + "Assistant" /* = 0x00000020 */, + "List" /* = 0x00000021 */, + "ListItem" /* = 0x00000022 */, + "Tree" /* = 0x00000023 */, + "TreeItem" /* = 0x00000024 */, + "PageTab" /* = 0x00000025 */, + "PropertyPage" /* = 0x00000026 */, + "Indicator" /* = 0x00000027 */, + "Graphic" /* = 0x00000028 */, + "StaticText" /* = 0x00000029 */, + "EditableText" /* = 0x0000002A */, // Editable, selectable, etc. + "PushButton" /* = 0x0000002B */, + "CheckBox" /* = 0x0000002C */, + "RadioButton" /* = 0x0000002D */, + "ComboBox" /* = 0x0000002E */, + "DropList" /* = 0x0000002F */, // commented out + "ProgressBar" /* = 0x00000030 */, + "Dial" /* = 0x00000031 */, + "HotkeyField" /* = 0x00000032 */, + "Slider" /* = 0x00000033 */, + "SpinBox" /* = 0x00000034 */, + "Canvas" /* = 0x00000035 */, + "Animation" /* = 0x00000036 */, + "Equation" /* = 0x00000037 */, + "ButtonDropDown" /* = 0x00000038 */, + "ButtonMenu" /* = 0x00000039 */, + "ButtonDropGrid" /* = 0x0000003A */, + "Whitespace" /* = 0x0000003B */, + "PageTabList" /* = 0x0000003C */, + "Clock" /* = 0x0000003D */, + "Splitter" /* = 0x0000003E */, + "LayeredPane" /* = 0x0000003F */, + "UserRole" /* = 0x0000ffff*/ + }; + + if (role >=0x40) + role = QAccessible::UserRole; + return roles[int(role)]; +} + +static const char *eventString(QAccessible::Event ev) +{ + static const char *events[] = { + "null", // 0 + "SoundPlayed" /*= 0x0001*/, + "Alert" /*= 0x0002*/, + "ForegroundChanged" /*= 0x0003*/, + "MenuStart" /*= 0x0004*/, + "MenuEnd" /*= 0x0005*/, + "PopupMenuStart" /*= 0x0006*/, + "PopupMenuEnd" /*= 0x0007*/, + "ContextHelpStart" /*= 0x000C*/, // 8 + "ContextHelpEnd" /*= 0x000D*/, + "DragDropStart" /*= 0x000E*/, + "DragDropEnd" /*= 0x000F*/, + "DialogStart" /*= 0x0010*/, + "DialogEnd" /*= 0x0011*/, + "ScrollingStart" /*= 0x0012*/, + "ScrollingEnd" /*= 0x0013*/, + "MenuCommand" /*= 0x0018*/, // 16 + + // Values from IAccessible2 + "ActionChanged" /*= 0x0101*/, // 17 + "ActiveDescendantChanged", + "AttributeChanged", + "DocumentContentChanged", + "DocumentLoadComplete", + "DocumentLoadStopped", + "DocumentReload", + "HyperlinkEndIndexChanged", + "HyperlinkNumberOfAnchorsChanged", + "HyperlinkSelectedLinkChanged", + "HypertextLinkActivated", + "HypertextLinkSelected", + "HyperlinkStartIndexChanged", + "HypertextChanged", + "HypertextNLinksChanged", + "ObjectAttributeChanged", + "PageChanged", + "SectionChanged", + "TableCaptionChanged", + "TableColumnDescriptionChanged", + "TableColumnHeaderChanged", + "TableModelChanged", + "TableRowDescriptionChanged", + "TableRowHeaderChanged", + "TableSummaryChanged", + "TextAttributeChanged", + "TextCaretMoved", + // TextChanged, deprecated, use TextUpdated + //TextColumnChanged = TextCaretMoved + 2, + "TextInserted", + "TextRemoved", + "TextUpdated", + "TextSelectionChanged", + "VisibleDataChanged", /*= 0x0101+32*/ + "ObjectCreated" /*= 0x8000*/, // 49 + "ObjectDestroyed" /*= 0x8001*/, + "ObjectShow" /*= 0x8002*/, + "ObjectHide" /*= 0x8003*/, + "ObjectReorder" /*= 0x8004*/, + "Focus" /*= 0x8005*/, + "Selection" /*= 0x8006*/, + "SelectionAdd" /*= 0x8007*/, + "SelectionRemove" /*= 0x8008*/, + "SelectionWithin" /*= 0x8009*/, + "StateChanged" /*= 0x800A*/, + "LocationChanged" /*= 0x800B*/, + "NameChanged" /*= 0x800C*/, + "DescriptionChanged" /*= 0x800D*/, + "ValueChanged" /*= 0x800E*/, + "ParentChanged" /*= 0x800F*/, + "HelpChanged" /*= 0x80A0*/, + "DefaultActionChanged" /*= 0x80B0*/, + "AcceleratorChanged" /*= 0x80C0*/ + }; + int e = int(ev); + if (e <= 0x80c0) { + const int last = sizeof(events)/sizeof(char*) - 1; + + if (e <= 0x07) + return events[e]; + else if (e <= 0x13) + return events[e - 0x0c + 8]; + else if (e == 0x18) + return events[16]; + else if (e <= 0x0101 + 32) + return events[e - 0x101 + 17]; + else if (e <= 0x800f) + return events[e - 0x8000 + 49]; + else if (e == 0x80a0) + return events[last - 2]; + else if (e == 0x80b0) + return events[last - 1]; + else if (e == 0x80c0) + return events[last]; + } + return "unknown"; +}; + +void showDebug(const char* funcName, const QAccessibleInterface *iface) +{ + qDebug() << "Role:" << roleString(iface->role(0)) + << "Name:" << iface->text(QAccessible::Name, 0) + << "State:" << QString::number(int(iface->state(0)), 16) + << QLatin1String(funcName); +} +#else +# define showDebug(f, iface) +#endif + +// This stuff is used for widgets/items with no window handle: +typedef QMap<int, QPair<QObject*,int> > NotifyMap; +Q_GLOBAL_STATIC(NotifyMap, qAccessibleRecentSentEvents) +static int eventNum = 0; + +class QWindowsEnumerate : public IEnumVARIANT +{ +public: + QWindowsEnumerate(const QVector<int> &a) + : ref(0), current(0),array(a) + { + } + + virtual ~QWindowsEnumerate() {} + + HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID *); + ULONG STDMETHODCALLTYPE AddRef(); + ULONG STDMETHODCALLTYPE Release(); + + HRESULT STDMETHODCALLTYPE Clone(IEnumVARIANT **ppEnum); + HRESULT STDMETHODCALLTYPE Next(unsigned long celt, VARIANT FAR* rgVar, unsigned long FAR* pCeltFetched); + HRESULT STDMETHODCALLTYPE Reset(); + HRESULT STDMETHODCALLTYPE Skip(unsigned long celt); + +private: + ULONG ref; + ULONG current; + QVector<int> array; +}; + +HRESULT STDMETHODCALLTYPE QWindowsEnumerate::QueryInterface(REFIID id, LPVOID *iface) +{ + *iface = 0; + if (id == IID_IUnknown) + *iface = (IUnknown*)this; + else if (id == IID_IEnumVARIANT) + *iface = (IEnumVARIANT*)this; + + if (*iface) { + AddRef(); + return S_OK; + } + + return E_NOINTERFACE; +} + +ULONG STDMETHODCALLTYPE QWindowsEnumerate::AddRef() +{ + return ++ref; +} + +ULONG STDMETHODCALLTYPE QWindowsEnumerate::Release() +{ + if (!--ref) { + delete this; + return 0; + } + return ref; +} + +HRESULT STDMETHODCALLTYPE QWindowsEnumerate::Clone(IEnumVARIANT **ppEnum) +{ + QWindowsEnumerate *penum = 0; + *ppEnum = 0; + + penum = new QWindowsEnumerate(array); + if (!penum) + return E_OUTOFMEMORY; + penum->current = current; + penum->array = array; + penum->AddRef(); + *ppEnum = penum; + + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsEnumerate::Next(unsigned long celt, VARIANT FAR* rgVar, unsigned long FAR* pCeltFetched) +{ + if (pCeltFetched) + *pCeltFetched = 0; + + ULONG l; + for (l = 0; l < celt; l++) { + VariantInit(&rgVar[l]); + if ((current+1) > (ULONG)array.size()) { + *pCeltFetched = l; + return S_FALSE; + } + + rgVar[l].vt = VT_I4; + rgVar[l].lVal = array[(int)current]; + ++current; + } + *pCeltFetched = l; + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsEnumerate::Reset() +{ + current = 0; + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsEnumerate::Skip(unsigned long celt) +{ + current += celt; + if (current > (ULONG)array.size()) { + current = array.size(); + return S_FALSE; + } + return S_OK; +} + +/* +*/ +class QWindowsAccessible : public IAccessible, IOleWindow, QAccessible +{ +public: + QWindowsAccessible(QAccessibleInterface *a) + : ref(0), accessible(a) + { + } + + virtual ~QWindowsAccessible() + { + delete accessible; + } + + /* 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); + +private: + ULONG ref; + QAccessibleInterface *accessible; +}; + +static inline BSTR QStringToBSTR(const QString &str) +{ + BSTR bstrVal; + + int wlen = str.length()+1; + bstrVal = SysAllocStringByteLen(0, wlen*2); + memcpy(bstrVal, str.unicode(), sizeof(QChar)*(wlen)); + bstrVal[wlen] = 0; + + return bstrVal; +} + +/* +*/ + +/* + IUnknown +*/ +HRESULT STDMETHODCALLTYPE QWindowsAccessible::QueryInterface(REFIID id, LPVOID *iface) +{ + *iface = 0; + if (id == IID_IUnknown) + *iface = (IUnknown*)(IDispatch*)this; + else if (id == IID_IDispatch) + *iface = (IDispatch*)this; + else if (id == IID_IAccessible) + *iface = (IAccessible*)this; + else if (id == IID_IOleWindow) + *iface = (IOleWindow*)this; + else + return E_NOINTERFACE; + + AddRef(); + return S_OK; +} + +ULONG STDMETHODCALLTYPE QWindowsAccessible::AddRef() +{ + return ++ref; +} + +ULONG STDMETHODCALLTYPE QWindowsAccessible::Release() +{ + if (!--ref) { + delete this; + return 0; + } + return ref; +} + +/* + IDispatch +*/ + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::GetTypeInfoCount(unsigned int * pctinfo) +{ + // We don't use a type library + *pctinfo = 0; + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::GetTypeInfo(unsigned int, unsigned long, ITypeInfo **pptinfo) +{ + // We don't use a type library + *pptinfo = 0; + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::GetIDsOfNames(const _GUID &, wchar_t **rgszNames, unsigned int, unsigned long, long *rgdispid) +{ +#if !defined(Q_CC_BOR) && !defined(Q_CC_GNU) + // PROPERTIES: Hierarchical + if (_bstr_t(rgszNames[0]) == _bstr_t(L"accParent")) + rgdispid[0] = DISPID_ACC_PARENT; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accChildCount")) + rgdispid[0] = DISPID_ACC_CHILDCOUNT; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accChild")) + rgdispid[0] = DISPID_ACC_CHILD; + + // PROPERTIES: Descriptional + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accName(")) + rgdispid[0] = DISPID_ACC_NAME; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accValue")) + rgdispid[0] = DISPID_ACC_VALUE; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accDescription")) + rgdispid[0] = DISPID_ACC_DESCRIPTION; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accRole")) + rgdispid[0] = DISPID_ACC_ROLE; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accState")) + rgdispid[0] = DISPID_ACC_STATE; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accHelp")) + rgdispid[0] = DISPID_ACC_HELP; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accHelpTopic")) + rgdispid[0] = DISPID_ACC_HELPTOPIC; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accKeyboardShortcut")) + rgdispid[0] = DISPID_ACC_KEYBOARDSHORTCUT; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accFocus")) + rgdispid[0] = DISPID_ACC_FOCUS; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accSelection")) + rgdispid[0] = DISPID_ACC_SELECTION; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accDefaultAction")) + rgdispid[0] = DISPID_ACC_DEFAULTACTION; + + // METHODS + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accSelect")) + rgdispid[0] = DISPID_ACC_SELECT; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accLocation")) + rgdispid[0] = DISPID_ACC_LOCATION; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accNavigate")) + rgdispid[0] = DISPID_ACC_NAVIGATE; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accHitTest")) + rgdispid[0] = DISPID_ACC_HITTEST; + else if (_bstr_t(rgszNames[0]) == _bstr_t(L"accDoDefaultAction")) + rgdispid[0] = DISPID_ACC_DODEFAULTACTION; + else + return DISP_E_UNKNOWNINTERFACE; + + return S_OK; +#else + Q_UNUSED(rgszNames); + Q_UNUSED(rgdispid); + + return DISP_E_MEMBERNOTFOUND; +#endif +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::Invoke(long dispIdMember, const _GUID &, unsigned long, unsigned short wFlags, tagDISPPARAMS *pDispParams, tagVARIANT *pVarResult, tagEXCEPINFO *, unsigned int *) +{ + HRESULT hr = DISP_E_MEMBERNOTFOUND; + + switch (dispIdMember) + { + case DISPID_ACC_PARENT: + if (wFlags == DISPATCH_PROPERTYGET) { + if (!pVarResult) + return E_INVALIDARG; + hr = get_accParent(&pVarResult->pdispVal); + } else { + hr = DISP_E_MEMBERNOTFOUND; + } + break; + + case DISPID_ACC_CHILDCOUNT: + if (wFlags == DISPATCH_PROPERTYGET) { + if (!pVarResult) + return E_INVALIDARG; + hr = get_accChildCount(&pVarResult->lVal); + } else { + hr = DISP_E_MEMBERNOTFOUND; + } + break; + + case DISPID_ACC_CHILD: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accChild(pDispParams->rgvarg[0], &pVarResult->pdispVal); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_NAME: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accName(pDispParams->rgvarg[0], &pVarResult->bstrVal); + else if (wFlags == DISPATCH_PROPERTYPUT) + hr = put_accName(pDispParams->rgvarg[0], pVarResult->bstrVal); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_VALUE: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accValue(pDispParams->rgvarg[0], &pVarResult->bstrVal); + else if (wFlags == DISPATCH_PROPERTYPUT) + hr = put_accValue(pDispParams->rgvarg[0], pVarResult->bstrVal); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_DESCRIPTION: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accDescription(pDispParams->rgvarg[0], &pVarResult->bstrVal); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_ROLE: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accRole(pDispParams->rgvarg[0], pVarResult); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_STATE: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accState(pDispParams->rgvarg[0], pVarResult); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_HELP: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accHelp(pDispParams->rgvarg[0], &pVarResult->bstrVal); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_HELPTOPIC: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accHelpTopic(&pDispParams->rgvarg[2].bstrVal, pDispParams->rgvarg[1], &pDispParams->rgvarg[0].lVal); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_KEYBOARDSHORTCUT: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accKeyboardShortcut(pDispParams->rgvarg[0], &pVarResult->bstrVal); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_FOCUS: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accFocus(pVarResult); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_SELECTION: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accSelection(pVarResult); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_DEFAULTACTION: + if (wFlags == DISPATCH_PROPERTYGET) + hr = get_accDefaultAction(pDispParams->rgvarg[0], &pVarResult->bstrVal); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_SELECT: + if (wFlags == DISPATCH_METHOD) + hr = accSelect(pDispParams->rgvarg[1].lVal, pDispParams->rgvarg[0]); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_LOCATION: + if (wFlags == DISPATCH_METHOD) + hr = accLocation(&pDispParams->rgvarg[4].lVal, &pDispParams->rgvarg[3].lVal, &pDispParams->rgvarg[2].lVal, &pDispParams->rgvarg[1].lVal, pDispParams->rgvarg[0]); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_NAVIGATE: + if (wFlags == DISPATCH_METHOD) + hr = accNavigate(pDispParams->rgvarg[1].lVal, pDispParams->rgvarg[0], pVarResult); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_HITTEST: + if (wFlags == DISPATCH_METHOD) + hr = accHitTest(pDispParams->rgvarg[1].lVal, pDispParams->rgvarg[0].lVal, pVarResult); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + case DISPID_ACC_DODEFAULTACTION: + if (wFlags == DISPATCH_METHOD) + hr = accDoDefaultAction(pDispParams->rgvarg[0]); + else + hr = DISP_E_MEMBERNOTFOUND; + break; + + default: + hr = DISP_E_MEMBERNOTFOUND; + break; + } + + if (!SUCCEEDED(hr)) { + return hr; + } + return hr; +} + +/* + IAccessible +*/ +HRESULT STDMETHODCALLTYPE QWindowsAccessible::accHitTest(long xLeft, long yTop, VARIANT *pvarID) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + int control = accessible->childAt(xLeft, yTop); + if (control == -1) { + (*pvarID).vt = VT_EMPTY; + return S_FALSE; + } + QAccessibleInterface *acc = 0; + if (control) + accessible->navigate(Child, control, &acc); + if (!acc) { + (*pvarID).vt = VT_I4; + (*pvarID).lVal = control; + return S_OK; + } + + QWindowsAccessible* wacc = new QWindowsAccessible(acc); + IDispatch *iface = 0; + wacc->QueryInterface(IID_IDispatch, (void**)&iface); + if (iface) { + (*pvarID).vt = VT_DISPATCH; + (*pvarID).pdispVal = iface; + return S_OK; + } else { + delete wacc; + } + + (*pvarID).vt = VT_EMPTY; + return S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::accLocation(long *pxLeft, long *pyTop, long *pcxWidth, long *pcyHeight, VARIANT varID) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QRect rect = accessible->rect(varID.lVal); + if (rect.isValid()) { + *pxLeft = rect.x(); + *pyTop = rect.y(); + *pcxWidth = rect.width(); + *pcyHeight = rect.height(); + } else { + *pxLeft = 0; + *pyTop = 0; + *pcxWidth = 0; + *pcyHeight = 0; + } + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::accNavigate(long navDir, VARIANT varStart, VARIANT *pvarEnd) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QAccessibleInterface *acc = 0; + int control = -1; + switch (navDir) { + case NAVDIR_FIRSTCHILD: + control = accessible->navigate(Child, 1, &acc); + break; + case NAVDIR_LASTCHILD: + control = accessible->navigate(Child, accessible->childCount(), &acc); + break; + case NAVDIR_NEXT: + case NAVDIR_PREVIOUS: + if (!varStart.lVal){ + QAccessibleInterface *parent = 0; + accessible->navigate(Ancestor, 1, &parent); + if (parent) { + int index = parent->indexOfChild(accessible); + index += (navDir == NAVDIR_NEXT) ? 1 : -1; + if (index > 0 && index <= parent->childCount()) + control = parent->navigate(Child, index, &acc); + delete parent; + } + } else { + int index = varStart.lVal; + index += (navDir == NAVDIR_NEXT) ? 1 : -1; + if (index > 0 && index <= accessible->childCount()) + control = accessible->navigate(Child, index, &acc); + } + break; + case NAVDIR_UP: + control = accessible->navigate(Up, varStart.lVal, &acc); + break; + case NAVDIR_DOWN: + control = accessible->navigate(Down, varStart.lVal, &acc); + break; + case NAVDIR_LEFT: + control = accessible->navigate(Left, varStart.lVal, &acc); + break; + case NAVDIR_RIGHT: + control = accessible->navigate(Right, varStart.lVal, &acc); + break; + default: + break; + } + if (control == -1) { + (*pvarEnd).vt = VT_EMPTY; + return S_FALSE; + } + if (!acc) { + (*pvarEnd).vt = VT_I4; + (*pvarEnd).lVal = control; + return S_OK; + } + + QWindowsAccessible* wacc = new QWindowsAccessible(acc); + + IDispatch *iface = 0; + wacc->QueryInterface(IID_IDispatch, (void**)&iface); + if (iface) { + (*pvarEnd).vt = VT_DISPATCH; + (*pvarEnd).pdispVal = iface; + return S_OK; + } else { + delete wacc; + } + + (*pvarEnd).vt = VT_EMPTY; + return S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accChild(VARIANT varChildID, IDispatch** ppdispChild) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + if (varChildID.vt == VT_EMPTY) + return E_INVALIDARG; + + + int childIndex = varChildID.lVal; + QAccessibleInterface *acc = 0; + + if (childIndex < 0) { + const int entry = childIndex; + QPair<QObject*, int> ref = qAccessibleRecentSentEvents()->value(entry); + if (ref.first) { + acc = queryAccessibleInterface(ref.first); + if (acc && ref.second) { + if (ref.second) { + QAccessibleInterface *res; + int index = acc->navigate(Child, ref.second, &res); + delete acc; + if (index == -1) + return E_INVALIDARG; + acc = res; + } + } + } + } else { + RelationFlag rel = childIndex ? Child : Self; + accessible->navigate(rel, childIndex, &acc); + } + + if (acc) { + QWindowsAccessible* wacc = new QWindowsAccessible(acc); + wacc->QueryInterface(IID_IDispatch, (void**)ppdispChild); + return S_OK; + } + + *ppdispChild = 0; + return S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accChildCount(long* pcountChildren) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + *pcountChildren = accessible->childCount(); + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accParent(IDispatch** ppdispParent) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QAccessibleInterface *acc = 0; + accessible->navigate(Ancestor, 1, &acc); + if (acc) { + QWindowsAccessible* wacc = new QWindowsAccessible(acc); + wacc->QueryInterface(IID_IDispatch, (void**)ppdispParent); + + if (*ppdispParent) + return S_OK; + } + + *ppdispParent = 0; + return S_FALSE; +} + +/* + Properties and methods +*/ +HRESULT STDMETHODCALLTYPE QWindowsAccessible::accDoDefaultAction(VARIANT varID) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + return accessible->doAction(DefaultAction, varID.lVal, QVariantList()) ? S_OK : S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accDefaultAction(VARIANT varID, BSTR* pszDefaultAction) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QString def = accessible->actionText(DefaultAction, Name, varID.lVal); + if (def.isEmpty()) { + *pszDefaultAction = 0; + return S_FALSE; + } + + *pszDefaultAction = QStringToBSTR(def); + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accDescription(VARIANT varID, BSTR* pszDescription) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QString descr = accessible->text(Description, varID.lVal); + if (descr.size()) { + *pszDescription = QStringToBSTR(descr); + return S_OK; + } + + *pszDescription = 0; + return S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accHelp(VARIANT varID, BSTR *pszHelp) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QString help = accessible->text(Help, varID.lVal); + if (help.size()) { + *pszHelp = QStringToBSTR(help); + return S_OK; + } + + *pszHelp = 0; + return S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accHelpTopic(BSTR *, VARIANT, long *) +{ + return DISP_E_MEMBERNOTFOUND; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accKeyboardShortcut(VARIANT varID, BSTR *pszKeyboardShortcut) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QString sc = accessible->text(Accelerator, varID.lVal); + if (sc.size()) { + *pszKeyboardShortcut = QStringToBSTR(sc); + return S_OK; + } + + *pszKeyboardShortcut = 0; + return S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accName(VARIANT varID, BSTR* pszName) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QString n = accessible->text(Name, varID.lVal); + if (n.size()) { + *pszName = QStringToBSTR(n); + return S_OK; + } + + *pszName = 0; + return S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::put_accName(VARIANT, BSTR) +{ + showDebug(__FUNCTION__, accessible); + return DISP_E_MEMBERNOTFOUND; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accRole(VARIANT varID, VARIANT *pvarRole) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + Role role = accessible->role(varID.lVal); + if (role != NoRole) { + if (role == LayeredPane) + role = QAccessible::Pane; + (*pvarRole).vt = VT_I4; + (*pvarRole).lVal = role; + } else { + (*pvarRole).vt = VT_EMPTY; + } + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accState(VARIANT varID, VARIANT *pvarState) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + (*pvarState).vt = VT_I4; + (*pvarState).lVal = accessible->state(varID.lVal); + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accValue(VARIANT varID, BSTR* pszValue) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QString value = accessible->text(Value, varID.lVal); + if (!value.isNull()) { + *pszValue = QStringToBSTR(value); + return S_OK; + } + + *pszValue = 0; + return S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::put_accValue(VARIANT, BSTR) +{ + showDebug(__FUNCTION__, accessible); + return DISP_E_MEMBERNOTFOUND; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::accSelect(long flagsSelect, VARIANT varID) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + bool res = false; + + if (flagsSelect & SELFLAG_TAKEFOCUS) + res = accessible->doAction(SetFocus, varID.lVal, QVariantList()); + if (flagsSelect & SELFLAG_TAKESELECTION) { + accessible->doAction(ClearSelection, 0, QVariantList()); + res = accessible->doAction(AddToSelection, varID.lVal, QVariantList()); + } + if (flagsSelect & SELFLAG_EXTENDSELECTION) + res = accessible->doAction(ExtendSelection, varID.lVal, QVariantList()); + if (flagsSelect & SELFLAG_ADDSELECTION) + res = accessible->doAction(AddToSelection, varID.lVal, QVariantList()); + if (flagsSelect & SELFLAG_REMOVESELECTION) + res = accessible->doAction(RemoveSelection, varID.lVal, QVariantList()); + + return res ? S_OK : S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accFocus(VARIANT *pvarID) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + QAccessibleInterface *acc = 0; + int control = accessible->navigate(FocusChild, 1, &acc); + if (control == -1) { + (*pvarID).vt = VT_EMPTY; + return S_FALSE; + } + if (!acc || control == 0) { + (*pvarID).vt = VT_I4; + (*pvarID).lVal = control ? control : CHILDID_SELF; + return S_OK; + } + + QWindowsAccessible* wacc = new QWindowsAccessible(acc); + IDispatch *iface = 0; + wacc->QueryInterface(IID_IDispatch, (void**)&iface); + if (iface) { + (*pvarID).vt = VT_DISPATCH; + (*pvarID).pdispVal = iface; + return S_OK; + } else { + delete wacc; + } + + (*pvarID).vt = VT_EMPTY; + return S_FALSE; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accSelection(VARIANT *pvarChildren) +{ + showDebug(__FUNCTION__, accessible); + if (!accessible->isValid()) + return E_FAIL; + + int cc = accessible->childCount(); + QVector<int> sel(cc); + int selIndex = 0; + for (int i = 1; i <= cc; ++i) { + QAccessibleInterface *child = 0; + int i2 = accessible->navigate(Child, i, &child); + bool isSelected = false; + if (child) { + isSelected = child->state(0) & Selected; + delete child; + child = 0; + } else { + isSelected = accessible->state(i2) & Selected; + } + if (isSelected) + sel[selIndex++] = i; + } + sel.resize(selIndex); + if (sel.isEmpty()) { + (*pvarChildren).vt = VT_EMPTY; + return S_FALSE; + } + if (sel.size() == 1) { + (*pvarChildren).vt = VT_I4; + (*pvarChildren).lVal = sel[0]; + return S_OK; + } + IEnumVARIANT *iface = new QWindowsEnumerate(sel); + IUnknown *uiface; + iface->QueryInterface(IID_IUnknown, (void**)&uiface); + (*pvarChildren).vt = VT_UNKNOWN; + (*pvarChildren).punkVal = uiface; + + return S_OK; +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::GetWindow(HWND *phwnd) +{ + *phwnd = 0; + if (!accessible->isValid()) + return E_UNEXPECTED; + + QObject *o = accessible->object(); + QWindow *window = qobject_cast<QWindow*>(o); + if (!window) + window = QGuiApplication::topLevelWindows().first(); + + + Q_ASSERT(window); + if (!o || !window) + return E_FAIL; + + +#ifdef Q_WS_QPA + //QPlatformNativeInterface *platform = QGuiApplication::platformNativeInterface(); + //Q_ASSERT(platform); + //*phwnd = (HWND)platform->nativeResourceForWindow("handle", window); + + + return S_OK; +#else + *phwnd = static_cast<QWidget*>(o)->effectiveWinId(); + return S_OK; +#endif +} + +HRESULT STDMETHODCALLTYPE QWindowsAccessible::ContextSensitiveHelp(BOOL) +{ + return S_OK; +} + + +QWindowsAccessibility::QWindowsAccessibility() +{ +} + + +void QWindowsAccessibility::notifyAccessibilityUpdate(QObject *o, int who, QAccessible::Event reason) +{ + QString soundName; + switch (reason) { + case QAccessible::PopupMenuStart: + soundName = QLatin1String("MenuPopup"); + break; + + case QAccessible::MenuCommand: + soundName = QLatin1String("MenuCommand"); + break; + + case QAccessible::Alert: + { + /* ### FIXME +#ifndef QT_NO_MESSAGEBOX + QMessageBox *mb = qobject_cast<QMessageBox*>(o); + if (mb) { + switch (mb->icon()) { + case QMessageBox::Warning: + soundName = QLatin1String("SystemExclamation"); + break; + case QMessageBox::Critical: + soundName = QLatin1String("SystemHand"); + break; + case QMessageBox::Information: + soundName = QLatin1String("SystemAsterisk"); + break; + default: + break; + } + } else +#endif // QT_NO_MESSAGEBOX +*/ + { + soundName = QLatin1String("SystemAsterisk"); + } + + } + break; + default: + break; + } + + if (!soundName.isEmpty()) { +#ifndef QT_NO_SETTINGS + QSettings settings(QLatin1String("HKEY_CURRENT_USER\\AppEvents\\Schemes\\Apps\\.Default\\") + soundName, + QSettings::NativeFormat); + QString file = settings.value(QLatin1String(".Current/.")).toString(); +#else + QString file; +#endif + if (!file.isEmpty()) { + PlaySound(reinterpret_cast<const wchar_t *>(soundName.utf16()), 0, SND_ALIAS | SND_ASYNC | SND_NODEFAULT | SND_NOWAIT); + } + } + + typedef void (WINAPI *PtrNotifyWinEvent)(DWORD, HWND, LONG, LONG); + +#if defined(Q_WS_WINCE) // ### TODO: check for NotifyWinEvent in CE 6.0 + // There is no user32.lib nor NotifyWinEvent for CE + return; +#else + static PtrNotifyWinEvent ptrNotifyWinEvent = 0; + static bool resolvedNWE = false; + if (!resolvedNWE) { + resolvedNWE = true; + ptrNotifyWinEvent = (PtrNotifyWinEvent)QSystemLibrary::resolve(QLatin1String("user32"), "NotifyWinEvent"); + } + if (!ptrNotifyWinEvent) + return; + + // An event has to be associated with a window, + // so find the first parent that is a widget and that has a WId + QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(o); + QWindow *window = iface->window(); + + if (!window) { + window = QGuiApplication::activeWindow(); + if (!window) + return; + } + + QPlatformNativeInterface *platform = QGuiApplication::platformNativeInterface(); + HWND hWnd = (HWND)platform->nativeResourceForWindow("handle", window); + + if (reason != QAccessible::MenuCommand) { // MenuCommand is faked + // See comment "SENDING EVENTS TO OBJECTS WITH NO WINDOW HANDLE" + eventNum %= 50; //[0..49] + int eventId = - eventNum - 1; + + qAccessibleRecentSentEvents()->insert(eventId, qMakePair(o, who)); + ptrNotifyWinEvent(reason, hWnd, OBJID_CLIENT, eventId ); + + ++eventNum; + } +#endif // Q_WS_WINCE + +} + +/* +void QWindowsAccessibility::setRootObject(QObject *o) +{ + +} + +void QWindowsAccessibility::initialize() +{ + +} + +void QWindowsAccessibility::cleanup() +{ + +} + +*/ + +bool QWindowsAccessibility::handleAccessibleObjectFromWindowRequest(HWND hwnd, WPARAM wParam, LPARAM lParam, LRESULT *lResult) +{ + if (static_cast<long>(lParam) == static_cast<long>(UiaRootObjectId)) { + /* For UI Automation + */ + } else if ((DWORD)lParam == OBJID_CLIENT) { +#if 1 + // Ignoring all requests while starting up + // ### Maybe QPA takes care of this??? + if (QApplication::startingUp() || QApplication::closingDown()) + return false; +#endif + + typedef LRESULT (WINAPI *PtrLresultFromObject)(REFIID, WPARAM, LPUNKNOWN); + static PtrLresultFromObject ptrLresultFromObject = 0; + static bool oleaccChecked = false; + + if (!oleaccChecked) { + oleaccChecked = true; +#if !defined(Q_OS_WINCE) + ptrLresultFromObject = (PtrLresultFromObject)QSystemLibrary::resolve(QLatin1String("oleacc"), "LresultFromObject"); +#endif + } + + if (ptrLresultFromObject) { + QWindow *window = QWindowsContext::instance()->findWindow(hwnd); + if (window) { + QAccessibleInterface *acc = window->accessibleRoot(); + if (acc) { + QWindowsAccessible *winacc = new QWindowsAccessible(acc); + IAccessible *iface; + HRESULT hr = winacc->QueryInterface(IID_IAccessible, (void**)&iface); + if (SUCCEEDED(hr)) { + *lResult = ptrLresultFromObject(IID_IAccessible, wParam, iface); // ref == 2 + if (*lResult) { + iface->Release(); // the client will release the object again, and then it will destroy itself + } + return true; + } + } + } + } + } + return false; +} + +QT_END_NAMESPACE + +#endif //QT_NO_ACCESSIBILITY |