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// 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)
#include "qwindowsuiaselectionprovider.h"
#include "qwindowsuiamainprovider.h"
#include "qwindowsuiautils.h"
#include "qwindowscontext.h"
#include <QtGui/qaccessible.h>
#include <QtCore/qloggingcategory.h>
#include <QtCore/qstring.h>
#include <QtCore/qlist.h>
QT_BEGIN_NAMESPACE
using namespace QWindowsUiAutomation;
QWindowsUiaSelectionProvider::QWindowsUiaSelectionProvider(QAccessible::Id id) :
QWindowsUiaBaseProvider(id)
{
}
QWindowsUiaSelectionProvider::~QWindowsUiaSelectionProvider()
{
}
// Returns an array of providers with the selected items.
HRESULT STDMETHODCALLTYPE QWindowsUiaSelectionProvider::GetSelection(SAFEARRAY **pRetVal)
{
qCDebug(lcQpaUiAutomation) << __FUNCTION__;
if (!pRetVal)
return E_INVALIDARG;
*pRetVal = nullptr;
QAccessibleInterface *accessible = accessibleInterface();
if (!accessible)
return UIA_E_ELEMENTNOTAVAILABLE;
// First get/create list of selected items, then build a safe array with the right size.
QList<QAccessibleInterface *> selectedList;
if (QAccessibleSelectionInterface *selectionInterface = accessible->selectionInterface()) {
selectedList = selectionInterface->selectedItems();
} else {
const int childCount = accessible->childCount();
selectedList.reserve(childCount);
for (int i = 0; i < childCount; ++i) {
if (QAccessibleInterface *child = accessible->child(i)) {
if (accessible->role() == QAccessible::PageTabList) {
if (child->role() == QAccessible::PageTab && child->state().focused) {
selectedList.append(child);
}
} else {
if (child->state().selected) {
selectedList.append(child);
}
}
}
}
}
if ((*pRetVal = SafeArrayCreateVector(VT_UNKNOWN, 0, selectedList.size()))) {
for (LONG i = 0; i < selectedList.size(); ++i) {
if (QWindowsUiaMainProvider *childProvider = QWindowsUiaMainProvider::providerForAccessible(selectedList.at(i))) {
SafeArrayPutElement(*pRetVal, &i, static_cast<IRawElementProviderSimple *>(childProvider));
childProvider->Release();
}
}
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE QWindowsUiaSelectionProvider::get_CanSelectMultiple(BOOL *pRetVal)
{
qCDebug(lcQpaUiAutomation) << __FUNCTION__;
if (!pRetVal)
return E_INVALIDARG;
*pRetVal = FALSE;
QAccessibleInterface *accessible = accessibleInterface();
if (!accessible)
return UIA_E_ELEMENTNOTAVAILABLE;
*pRetVal = accessible->state().multiSelectable;
return S_OK;
}
HRESULT STDMETHODCALLTYPE QWindowsUiaSelectionProvider::get_IsSelectionRequired(BOOL *pRetVal)
{
qCDebug(lcQpaUiAutomation) << __FUNCTION__;
if (!pRetVal)
return E_INVALIDARG;
*pRetVal = FALSE;
QAccessibleInterface *accessible = accessibleInterface();
if (!accessible)
return UIA_E_ELEMENTNOTAVAILABLE;
if (accessible->role() == QAccessible::PageTabList) {
*pRetVal = TRUE;
} else {
// Initially returns false if none are selected. After the first selection, it may be required.
bool anySelected = false;
if (QAccessibleSelectionInterface *selectionInterface = accessible->selectionInterface()) {
anySelected = selectionInterface->selectedItem(0) != nullptr;
} else {
for (int i = 0; i < accessible->childCount(); ++i) {
if (QAccessibleInterface *child = accessible->child(i)) {
if (child->state().selected) {
anySelected = true;
break;
}
}
}
}
*pRetVal = anySelected && !accessible->state().multiSelectable && !accessible->state().extSelectable;
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE QWindowsUiaSelectionProvider::get_FirstSelectedItem(__RPC__deref_out_opt IRawElementProviderSimple **pRetVal)
{
qCDebug(lcQpaUiAutomation) << __FUNCTION__;
if (!pRetVal)
return E_INVALIDARG;
*pRetVal = nullptr;
QAccessibleInterface *accessible = accessibleInterface();
if (!accessible)
return UIA_E_ELEMENTNOTAVAILABLE;
QAccessibleInterface *firstSelectedChild = nullptr;
if (QAccessibleSelectionInterface *selectionInterface = accessible->selectionInterface()) {
firstSelectedChild = selectionInterface->selectedItem(0);
if (!firstSelectedChild)
return UIA_E_ELEMENTNOTAVAILABLE;
} else {
int i = 0;
while (!firstSelectedChild && i < accessible->childCount()) {
if (QAccessibleInterface *child = accessible->child(i)) {
if (accessible->role() == QAccessible::PageTabList) {
if (child->role() == QAccessible::PageTab && child->state().focused)
firstSelectedChild = child;
} else if (child->state().selected) {
firstSelectedChild = child;
}
}
i++;
}
}
if (!firstSelectedChild)
return UIA_E_ELEMENTNOTAVAILABLE;
if (QWindowsUiaMainProvider *childProvider = QWindowsUiaMainProvider::providerForAccessible(firstSelectedChild))
{
*pRetVal = static_cast<IRawElementProviderSimple *>(childProvider);
return S_OK;
}
return S_FALSE;
}
HRESULT STDMETHODCALLTYPE QWindowsUiaSelectionProvider::get_LastSelectedItem(__RPC__deref_out_opt IRawElementProviderSimple **pRetVal)
{
qCDebug(lcQpaUiAutomation) << __FUNCTION__;
if (!pRetVal)
return E_INVALIDARG;
*pRetVal = nullptr;
QAccessibleInterface *accessible = accessibleInterface();
if (!accessible)
return UIA_E_ELEMENTNOTAVAILABLE;
QAccessibleInterface *lastSelectedChild = nullptr;
if (QAccessibleSelectionInterface *selectionInterface = accessible->selectionInterface()) {
const int selectedItemCount = selectionInterface->selectedItemCount();
if (selectedItemCount <= 0)
return UIA_E_ELEMENTNOTAVAILABLE;
lastSelectedChild = selectionInterface->selectedItem(selectedItemCount - 1);
} else {
int i = accessible->childCount() - 1;
while (!lastSelectedChild && i >= 0) {
if (QAccessibleInterface *child = accessible->child(i)) {
if (accessible->role() == QAccessible::PageTabList) {
if (child->role() == QAccessible::PageTab && child->state().focused)
lastSelectedChild = child;
} else if (child->state().selected) {
lastSelectedChild = child;
}
}
i--;
}
}
if (!lastSelectedChild)
return UIA_E_ELEMENTNOTAVAILABLE;
if (QWindowsUiaMainProvider *childProvider = QWindowsUiaMainProvider::providerForAccessible(lastSelectedChild))
{
*pRetVal = static_cast<IRawElementProviderSimple *>(childProvider);
return S_OK;
}
return S_FALSE;
}
HRESULT STDMETHODCALLTYPE QWindowsUiaSelectionProvider::get_CurrentSelectedItem(__RPC__deref_out_opt IRawElementProviderSimple **pRetVal)
{
qCDebug(lcQpaUiAutomation) << __FUNCTION__;
return get_FirstSelectedItem(pRetVal);
}
HRESULT STDMETHODCALLTYPE QWindowsUiaSelectionProvider::get_ItemCount(__RPC__out int *pRetVal)
{
qCDebug(lcQpaUiAutomation) << __FUNCTION__;
if (!pRetVal)
return E_INVALIDARG;
*pRetVal = -1;
QAccessibleInterface *accessible = accessibleInterface();
if (!accessible)
return UIA_E_ELEMENTNOTAVAILABLE;
if (QAccessibleSelectionInterface *selectionInterface = accessible->selectionInterface())
*pRetVal = selectionInterface->selectedItemCount();
else {
int selectedCount = 0;
for (int i = 0; i < accessible->childCount(); i++) {
if (QAccessibleInterface *child = accessible->child(i)) {
if (accessible->role() == QAccessible::PageTabList) {
if (child->role() == QAccessible::PageTab && child->state().focused)
selectedCount++;
} else if (child->state().selected) {
selectedCount++;
}
}
}
*pRetVal = selectedCount;
}
return S_OK;
}
QT_END_NAMESPACE
#endif // QT_CONFIG(accessibility)
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