C++ QAccessibleInterface::role方法代码示例

// moz: [important]
HRESULT STDMETHODCALLTYPE QWindowsMsaaAccessible::get_accRole(VARIANT varID, VARIANT *pvarRole)
{
    QAccessibleInterface *accessible = accessibleInterface();
    accessibleDebugClientCalls(accessible);
    if (!accessible)
        return E_FAIL;

    QAccessible::Role role;
    if (varID.lVal) {
        QAccessibleInterface *child = childPointer(accessible, varID);
        if (!child)
            return E_FAIL;
        role = child->role();
    } else {
        role = accessible->role();
    }

    if (role != QAccessible::NoRole) {
        if (role >= QAccessible::LayeredPane) {
            // This block should hopefully only be entered if the AT client
            // does not support IAccessible2, since it should prefer IA2::role() then.
            if (role == QAccessible::LayeredPane)
                role = QAccessible::Pane;
            else
                role = QAccessible::Client;
        }
        (*pvarRole).vt = VT_I4;
        (*pvarRole).lVal = role;
    } else {
        (*pvarRole).vt = VT_EMPTY;
    }
    return S_OK;
}

void tst_QQuickAccessible::basicPropertiesTest()
{
    QAccessibleInterface *app = QAccessible::queryAccessibleInterface(qApp);
    QCOMPARE(app->childCount(), 0);

    QQuickView *window = new QQuickView();
    window->setSource(testFileUrl("statictext.qml"));
    window->show();
    QCOMPARE(app->childCount(), 1);

    QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(window);
    QVERIFY(iface);
    QCOMPARE(iface->childCount(), 1);

    QAccessibleInterface *item = iface->child(0);
    QVERIFY(item);
    QCOMPARE(item->childCount(), 2);
    QCOMPARE(item->rect().size(), QSize(400, 400));
    QCOMPARE(item->role(), QAccessible::Client);
    QCOMPARE(iface->indexOfChild(item), 0);

    QAccessibleInterface *text = item->child(0);
    QVERIFY(text);
    QCOMPARE(text->childCount(), 0);

    QCOMPARE(text->text(QAccessible::Name), QLatin1String("Hello Accessibility"));
    QCOMPARE(text->rect().size(), QSize(200, 50));
    QCOMPARE(text->rect().x(), item->rect().x() + 100);
    QCOMPARE(text->rect().y(), item->rect().y() + 20);
    QCOMPARE(text->role(), QAccessible::StaticText);
    QCOMPARE(item->indexOfChild(text), 0);

    QAccessibleInterface *text2 = item->child(1);
    QVERIFY(text2);
    QCOMPARE(text2->childCount(), 0);

    QCOMPARE(text2->text(QAccessible::Name), QLatin1String("The Hello 2 accessible text"));
    QCOMPARE(text2->rect().size(), QSize(100, 40));
    QCOMPARE(text2->rect().x(), item->rect().x() + 100);
    QCOMPARE(text2->rect().y(), item->rect().y() + 40);
    QCOMPARE(text2->role(), QAccessible::StaticText);
    QCOMPARE(item->indexOfChild(text2), 1);

    QCOMPARE(iface->indexOfChild(text2), -1);
    QCOMPARE(text2->indexOfChild(item), -1);

    delete window;
    QTestAccessibility::clearEvents();
}

void tst_QQuickAccessible::ignoredTest()
{
    QScopedPointer<QQuickView> window(new QQuickView());
    window->setSource(testFileUrl("ignored.qml"));
    window->show();

    QQuickItem *contentItem = window->contentItem();
    QVERIFY(contentItem);
    QQuickItem *rootItem = contentItem->childItems().first();
    QVERIFY(rootItem);

    // the window becomes active
    QAccessible::State activatedChange;
    activatedChange.active = true;

    QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(window.data());
    QVERIFY(iface);
    QAccessibleInterface *rectangleA = iface->child(0);

    QCOMPARE(rectangleA->role(), QAccessible::StaticText);
    QCOMPARE(rectangleA->text(QAccessible::Name), QLatin1String("A"));
    static const char *expected = "BEFIHD";
    // check if node "C" and "G" is skipped and that the order is as expected.
    for (int i = 0; i < rectangleA->childCount(); ++i) {
        QAccessibleInterface *child = rectangleA->child(i);
        QCOMPARE(child->text(QAccessible::Name), QString(QLatin1Char(expected[i])));
    }
    QTestAccessibility::clearEvents();
}

 static jint parentId(JNIEnv */*env*/, jobject /*thiz*/, jint objectId)
 {
     QAccessibleInterface *iface = interfaceFromId(objectId);
     if (iface) {
         QAccessibleInterface *parent = iface->parent();
         if (parent) {
             if (parent->role() == QAccessible::Application)
                 return -1;
             return QAccessible::uniqueId(parent);
         }
     }
     return -1;
 }

HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accRole(VARIANT varID, VARIANT *pvarRole)
{
#ifdef DEBUG_SHOW_ATCLIENT_COMMANDS
    showDebug(__FUNCTION__, accessible);
#endif //DEBUG_SHOW_ATCLIENT_COMMANDS
    if (!accessible->isValid())
        return E_FAIL;

    Role role = accessible->role(varID.lVal);
    if (role != NoRole) {
        (*pvarRole).vt = VT_I4;
        (*pvarRole).lVal = role;
    } else {
        (*pvarRole).vt = VT_EMPTY;
    }
    return S_OK;
}

/*! \reimp */
QAccessible::Role QAccessibleWidget::role(int child) const
{
    if (!child)
        return d->role;

    QWidgetList childList = childWidgets(widget());
    if (childList.count() > 0 && child <= childList.count()) {
        QWidget *targetWidget = childList.at(child - 1);
        QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(targetWidget);
        if (iface) {
            QAccessible::Role role = iface->role(0);
            delete iface;
            return role;
        }
    }

    return NoRole;
}

void QAccessibleTable::modelChange(QAccessibleTableModelChangeEvent *event)
{
    // if there is no cache yet, we don't update anything
    if (childToId.isEmpty())
        return;

    switch (event->modelChangeType()) {
    case QAccessibleTableModelChangeEvent::ModelReset:
        Q_FOREACH (QAccessible::Id id, childToId)
            QAccessible::deleteAccessibleInterface(id);
        childToId.clear();
        break;

    // rows are inserted: move every row after that
    case QAccessibleTableModelChangeEvent::RowsInserted:
    case QAccessibleTableModelChangeEvent::ColumnsInserted: {
        int newRows = event->lastRow() - event->firstRow() + 1;
        int newColumns = event->lastColumn() - event->firstColumn() + 1;

        ChildCache newCache;
        ChildCache::ConstIterator iter = childToId.constBegin();

        while (iter != childToId.constEnd()) {
            QAccessible::Id id = iter.value();
            QAccessibleInterface *iface = QAccessible::accessibleInterface(id);
            Q_ASSERT(iface);
            if (iface->role() == QAccessible::Cell || iface->role() == QAccessible::ListItem) {
                Q_ASSERT(iface->tableCellInterface());
                QAccessibleTableCell *cell = static_cast<QAccessibleTableCell*>(iface->tableCellInterface());
                if (event->modelChangeType() == QAccessibleTableModelChangeEvent::RowsInserted
                        && cell->m_index.row() >= event->firstRow()) {
                    int newRow = cell->m_index.row() + newRows;
                    cell->m_index = cell->m_index.sibling(newRow, cell->m_index.column());
                } else if (event->modelChangeType() == QAccessibleTableModelChangeEvent::ColumnsInserted
                        && cell->m_index.column() >= event->firstColumn()) {
                    int newColumn = cell->m_index.column() + newColumns;
                    cell->m_index = cell->m_index.sibling(cell->m_index.row(), newColumn);
                }
            } else if (event->modelChangeType() == QAccessibleTableModelChangeEvent::RowsInserted
                       && iface->role() == QAccessible::RowHeader) {
                QAccessibleTableHeaderCell *cell = static_cast<QAccessibleTableHeaderCell*>(iface);
                if (cell->index >= event->firstRow()) {
                    cell->index += newRows;
                }
            } else if (event->modelChangeType() == QAccessibleTableModelChangeEvent::ColumnsInserted
                   && iface->role() == QAccessible::ColumnHeader) {
                QAccessibleTableHeaderCell *cell = static_cast<QAccessibleTableHeaderCell*>(iface);
                if (cell->index >= event->firstColumn()) {
                    cell->index += newColumns;
                }
            }
            if (indexOfChild(iface) >= 0) {
                newCache.insert(indexOfChild(iface), id);
            } else {
                // ### This should really not happen,
                // but it might if the view has a root index set.
                // This needs to be fixed.
                QAccessible::deleteAccessibleInterface(id);
            }
            ++iter;
        }
        childToId = newCache;
        break;
    }

    case QAccessibleTableModelChangeEvent::ColumnsRemoved:
    case QAccessibleTableModelChangeEvent::RowsRemoved: {
        int deletedColumns = event->lastColumn() - event->firstColumn() + 1;
        int deletedRows = event->lastRow() - event->firstRow() + 1;
        ChildCache newCache;
        ChildCache::ConstIterator iter = childToId.constBegin();
        while (iter != childToId.constEnd()) {
            QAccessible::Id id = iter.value();
            QAccessibleInterface *iface = QAccessible::accessibleInterface(id);
            Q_ASSERT(iface);
            if (iface->role() == QAccessible::Cell || iface->role() == QAccessible::ListItem) {
                Q_ASSERT(iface->tableCellInterface());
                QAccessibleTableCell *cell = static_cast<QAccessibleTableCell*>(iface->tableCellInterface());
                if (event->modelChangeType() == QAccessibleTableModelChangeEvent::RowsRemoved) {
                    if (cell->m_index.row() < event->firstRow()) {
                        newCache.insert(indexOfChild(cell), id);
                    } else if (cell->m_index.row() > event->lastRow()) {
                        int newRow = cell->m_index.row() - deletedRows;
                        cell->m_index = cell->m_index.sibling(newRow, cell->m_index.column());
                        newCache.insert(indexOfChild(cell), id);
                    } else {
                        QAccessible::deleteAccessibleInterface(id);
                    }
                } else if (event->modelChangeType() == QAccessibleTableModelChangeEvent::ColumnsRemoved) {
                    if (cell->m_index.column() < event->firstColumn()) {
                        newCache.insert(indexOfChild(cell), id);
                    } else if (cell->m_index.column() > event->lastColumn()) {
                        int newColumn = cell->m_index.column() - deletedColumns;
                        cell->m_index = cell->m_index.sibling(cell->m_index.row(), newColumn);
                        newCache.insert(indexOfChild(cell), id);
                    } else {
                        QAccessible::deleteAccessibleInterface(id);
                    }
                }
            } else if (event->modelChangeType() == QAccessibleTableModelChangeEvent::RowsRemoved
//.........这里部分代码省略.........