Adding the Accessibility classes

1 files changed, 658 insertions, 0 deletions

diff --git a/src/kitemviews/kitemlistviewaccessible.cpp b/src/kitemviews/kitemlistviewaccessible.cpp
new file mode 100644
index 000000000..fc7cb7bfe
--- /dev/null
+++ b/src/kitemviews/kitemlistviewaccessible.cpp
@@ -0,0 +1,658 @@
+#include "kitemlistviewaccessible.h"
+#include "kitemlistcontroller.h"
+#include "kitemlistselectionmanager.h"
+#include "private/kitemlistviewlayouter.h"
+
+#include <QtGui/qtableview.h>
+#include <QtGui/qaccessible2.h>
+#include <QDebug>
+
+#ifndef QT_NO_ACCESSIBILITY
+
+#ifndef QT_NO_ITEMVIEWS
+/*
+Implementation of the IAccessible2 table2 interface. Much simpler than
+the other table interfaces since there is only the main table and cells:
+
+TABLE/LIST/TREE
+  |- HEADER CELL
+  |- CELL
+  |- CELL
+  ...
+*/
+
+KItemListView *KItemListViewAccessible::view() const
+{
+    return qobject_cast<KItemListView*>(object());
+}
+
+KItemListViewAccessible::KItemListViewAccessible(KItemListView *view_)
+    : QAccessibleObjectEx(view_)
+{
+    Q_ASSERT(view());
+
+    /*if (qobject_cast<const QTableView*>(view())) {
+        m_role = QAccessible::Table;
+    } else if (qobject_cast<const QTreeView*>(view())) {
+        m_role = QAccessible::Tree;
+    } else if (qobject_cast<const QListView*>(view())) {
+        m_role = QAccessible::List;
+    } else {
+        // is this our best guess?
+        m_role = QAccessible::Table;
+    }*/
+}
+
+KItemListViewAccessible::~KItemListViewAccessible()
+{
+}
+
+void KItemListViewAccessible::modelReset()
+{}
+
+QAccessibleTable2CellInterface *KItemListViewAccessible::cell(int index) const
+{
+    if (index > 0)
+        return new KItemListWidgetAccessible(view(), index);
+    return 0;
+}
+
+QAccessibleTable2CellInterface *KItemListViewAccessible::cellAt(int row, int column) const
+{
+    /*Q_ASSERT(role(0) != QAccessible::Tree);
+    QModelIndex index = view()->model()->index(row, column);
+    //Q_ASSERT(index.isValid());
+    if (!index.isValid()) {
+        qWarning() << "QAccessibleTable2::cellAt: invalid index: " << index << " for " << view();
+        return 0;
+    }
+    return cell(index);*/
+    Q_UNUSED(row)
+    Q_UNUSED(column)
+    return cell(1);
+
+}
+
+QAccessibleInterface *KItemListViewAccessible::caption() const
+{
+    return 0;
+}
+
+QString KItemListViewAccessible::columnDescription(int) const
+{
+    return "No Column Description";
+}
+
+int KItemListViewAccessible::columnCount() const
+{
+    return view()->layouter()->columnCount();
+}
+
+int KItemListViewAccessible::rowCount() const
+{
+    int itemCount = view()->model()->count();
+    int rowCount = itemCount / columnCount();
+    if (itemCount % rowCount)
+        ++rowCount;
+    return rowCount;
+}
+
+int KItemListViewAccessible::selectedCellCount() const
+{
+    return view()->controller()->selectionManager()->selectedItems().size();
+}
+
+int KItemListViewAccessible::selectedColumnCount() const
+{
+    return 0;
+}
+
+int KItemListViewAccessible::selectedRowCount() const
+{
+    return 0;
+}
+
+QString KItemListViewAccessible::rowDescription(int) const
+{
+    return "No Row Description";
+}
+
+QList<QAccessibleTable2CellInterface*> KItemListViewAccessible::selectedCells() const
+{
+    QList<QAccessibleTable2CellInterface*> cells;
+    Q_FOREACH (int index, view()->controller()->selectionManager()->selectedItems()) {
+        cells.append(cell(index));
+    }
+    return cells;
+}
+
+QList<int> KItemListViewAccessible::selectedColumns() const
+{
+    QList<int> columns;
+    /*Q_FOREACH (const QModelIndex &index, view()->selectionModel()->selectedColumns()) {
+        columns.append(index.column());
+    }*/
+    return columns;
+}
+
+QList<int> KItemListViewAccessible::selectedRows() const
+{
+    QList<int> rows;
+    /*Q_FOREACH (const QModelIndex &index, view()->selectionModel()->selectedRows()) {
+        rows.append(index.row());
+    }*/
+    return rows;
+}
+
+QAccessibleInterface *KItemListViewAccessible::summary() const
+{
+    return 0;
+}
+
+bool KItemListViewAccessible::isColumnSelected(int) const
+{
+    return false; //view()->selectionModel()->isColumnSelected(column, QModelIndex());
+}
+
+bool KItemListViewAccessible::isRowSelected(int) const
+{
+    return false; //view()->selectionModel()->isRowSelected(row, QModelIndex());
+}
+
+bool KItemListViewAccessible::selectRow(int)
+{
+    /*QModelIndex index = view()->model()->index(row, 0);
+    if (!index.isValid() || view()->selectionMode() & QAbstractItemView::NoSelection)
+        return false;
+    view()->selectionModel()->select(index, QItemSelectionModel::Select);*/
+    return true;
+}
+
+bool KItemListViewAccessible::selectColumn(int)
+{
+    /*QModelIndex index = view()->model()->index(0, column);
+    if (!index.isValid() || view()->selectionMode() & QAbstractItemView::NoSelection)
+        return false;
+    view()->selectionModel()->select(index, QItemSelectionModel::Select);*/
+    return true;
+}
+
+bool KItemListViewAccessible::unselectRow(int)
+{
+    /*QModelIndex index = view()->model()->index(row, 0);
+    if (!index.isValid() || view()->selectionMode() & QAbstractItemView::NoSelection)
+        return false;
+    view()->selectionModel()->select(index, QItemSelectionModel::Deselect);*/
+    return true;
+}
+
+bool KItemListViewAccessible::unselectColumn(int)
+{
+    /*QModelIndex index = view()->model()->index(0, column);
+    if (!index.isValid() || view()->selectionMode() & QAbstractItemView::NoSelection)
+        return false;
+    view()->selectionModel()->select(index, QItemSelectionModel::Columns & QItemSelectionModel::Deselect);*/
+    return true;
+}
+
+QAccessible2::TableModelChange KItemListViewAccessible::modelChange() const
+{
+    QAccessible2::TableModelChange change;
+    // FIXME
+    return change;
+}
+
+QAccessible::Role KItemListViewAccessible::role(int child) const
+{
+    Q_ASSERT(child >= 0);
+    if (child > 0)
+        return QAccessible::Cell;
+    return QAccessible::Table;
+}
+
+QAccessible::State KItemListViewAccessible::state(int child) const
+{
+    Q_ASSERT(child == 0);
+    return QAccessible::Normal | HasInvokeExtension;
+}
+
+int KItemListViewAccessible::childAt(int x, int y) const
+{
+    QPointF point = QPointF(x,y);
+    return view()->itemAt(view()->mapFromScene(point));
+}
+
+int KItemListViewAccessible::childCount() const
+{
+    return rowCount() * columnCount();
+}
+
+int KItemListViewAccessible::indexOfChild(const QAccessibleInterface *iface) const
+{
+    /*Q_ASSERT(iface->role(0) != QAccessible::TreeItem); // should be handled by tree class
+    if (iface->role(0) == QAccessible::Cell || iface->role(0) == QAccessible::ListItem) {
+        const QAccessibleTable2Cell* cell = static_cast<const QAccessibleTable2Cell*>(iface);
+        return logicalIndex(cell->m_index);
+    } else if (iface->role(0) == QAccessible::ColumnHeader){
+        const QAccessibleTable2HeaderCell* cell = static_cast<const QAccessibleTable2HeaderCell*>(iface);
+        return cell->index + (verticalHeader() ? 1 : 0) + 1;
+    } else if (iface->role(0) == QAccessible::RowHeader){
+        const QAccessibleTable2HeaderCell* cell = static_cast<const QAccessibleTable2HeaderCell*>(iface);
+        return (cell->index+1) * (view()->model()->rowCount()+1)  + 1;
+    } else if (iface->role(0) == QAccessible::Pane) {
+        return 1; // corner button
+    } else {
+        qWarning() << "WARNING QAccessibleTable2::indexOfChild Fix my children..."
+                   << iface->role(0) << iface->text(QAccessible::Name, 0);
+    }
+    // FIXME: we are in denial of our children. this should stop.
+    return -1;*/
+    
+    const KItemListWidgetAccessible *widget = static_cast<const KItemListWidgetAccessible*>(iface);
+    return widget->getIndex();
+}
+
+QString KItemListViewAccessible::text(Text t, int child) const
+{
+    Q_ASSERT(child == 0);
+    if (t == QAccessible::Description)
+        return "List of files present in the current directory";
+    return "File List";
+}
+
+QRect KItemListViewAccessible::rect(int child) const
+{
+    Q_UNUSED(child)
+    if (!view()->isVisible())
+        return QRect();
+    return view()->geometry().toRect();
+}
+
+int KItemListViewAccessible::navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const
+{
+    *iface = 0;
+    switch (relation) {
+    /*case Ancestor: {
+        if (index == 1 && view()->parent()) {
+            *iface = QAccessible::queryAccessibleInterface(view()->parent());
+            if (*iface)
+                return 0;
+        }
+        break;
+    }*/
+    case QAccessible::Child: {
+        Q_ASSERT(index > 0);
+        *iface = cell(index);
+        if (*iface) {
+            return 0;
+        }
+        break;
+    }
+    default:
+        break;
+    }
+    return -1;
+}
+
+QAccessible::Relation KItemListViewAccessible::relationTo(int, const QAccessibleInterface *, int) const
+{
+    return QAccessible::Unrelated;
+}
+
+#ifndef QT_NO_ACTION
+int KItemListViewAccessible::userActionCount(int) const
+{
+    return 0;
+}
+QString KItemListViewAccessible::actionText(int, Text, int) const
+{
+    return QString();
+}
+bool KItemListViewAccessible::doAction(int, int, const QVariantList &)
+{
+    return false;
+}
+#endif
+
+// TABLE CELL
+
+KItemListWidgetAccessible::KItemListWidgetAccessible(KItemListView *view_, int index_)
+    : /* QAccessibleSimpleEditableTextInterface(this), */ view(view_), index(index_)
+{
+    Q_ASSERT(index_>0);
+}
+
+int KItemListWidgetAccessible::columnExtent() const { return 1; }
+int KItemListWidgetAccessible::rowExtent() const { return 1; }
+
+QList<QAccessibleInterface*> KItemListWidgetAccessible::rowHeaderCells() const
+{
+    QList<QAccessibleInterface*> headerCell;
+    /*if (verticalHeader()) {
+        headerCell.append(new QAccessibleTable2HeaderCell(view, m_index.row(), Qt::Vertical));
+    }*/
+    return headerCell;
+}
+
+QList<QAccessibleInterface*> KItemListWidgetAccessible::columnHeaderCells() const
+{
+    QList<QAccessibleInterface*> headerCell;
+    /*if (horizontalHeader()) {
+        headerCell.append(new QAccessibleTable2HeaderCell(view, m_index.column(), Qt::Horizontal));
+    }*/
+    return headerCell;
+}
+
+int KItemListWidgetAccessible::columnIndex() const
+{
+    return view->layouter()->itemColumn(index);
+}
+
+int KItemListWidgetAccessible::rowIndex() const
+{
+    /*if (role(0) == QAccessible::TreeItem) {
+       const QTreeView *treeView = qobject_cast<const QTreeView*>(view);
+       Q_ASSERT(treeView);
+       int row = treeView->d_func()->viewIndex(m_index);
+       return row;
+    }*/
+    return view->layouter()->itemRow(index);
+}
+
+//Done
+bool KItemListWidgetAccessible::isSelected() const
+{
+    return widget->isSelected();
+}
+
+void KItemListWidgetAccessible::rowColumnExtents(int *row, int *column, int *rowExtents, int *columnExtents, bool *selected) const
+{
+    KItemListViewLayouter* layouter = view->layouter();
+    *row = layouter->itemRow(index);
+    *column = layouter->itemColumn(index);
+    *rowExtents = 1;
+    *columnExtents = 1;
+    *selected = isSelected();
+}
+
+QAccessibleTable2Interface* KItemListWidgetAccessible::table() const
+{
+    return QAccessible::queryAccessibleInterface(view)->table2Interface();
+}
+
+QAccessible::Role KItemListWidgetAccessible::role(int child) const
+{
+    Q_ASSERT(child == 0);
+    return QAccessible::Cell;
+}
+
+QAccessible::State KItemListWidgetAccessible::state(int child) const
+{
+    Q_ASSERT(child == 0);
+    QAccessible::State st = Normal;
+
+    //QRect globalRect = view->rect();
+    //globalRect.translate(view->mapToGlobal(QPoint(0,0)));
+    //if (!globalRect.intersects(rect(0)))
+    //    st |= Invisible;
+
+    if (widget->isSelected())
+        st |= Selected;
+    if (view->controller()->selectionManager()->currentItem() == index)
+        st |= Focused;
+
+    //if (m_index.model()->data(m_index, Qt::CheckStateRole).toInt() == Qt::Checked)
+    //    st |= Checked;
+    //if (flags & Qt::ItemIsSelectable) {
+    st |= Selectable;
+    st |= Focusable;
+    if (view->controller()->selectionBehavior() == KItemListController::MultiSelection)
+        st |= MultiSelectable;
+
+        //if (view->selectionMode() == QAbstractItemView::ExtendedSelection)
+            //st |= ExtSelectable;
+    //}
+    //if (m_role == QAccessible::TreeItem) {
+    //    const QTreeView *treeView = qobject_cast<const QTreeView*>(view);
+    //    if (treeView->isExpanded(m_index))
+    //        st |= Expanded;
+    //}
+
+    st |= HasInvokeExtension;
+    return st;
+}
+
+//Done
+bool KItemListWidgetAccessible::isExpandable() const
+{
+    return false; //view->model()->hasChildren(m_index);
+}
+
+//Done
+QRect KItemListWidgetAccessible::rect(int child) const
+{
+    Q_ASSERT(child == 0);
+
+    //QRect r;
+    //r = view->visualRect(m_index);
+
+    //if (!r.isNull())
+    //    r.translate(view->viewport()->mapTo(view, QPoint(0,0)));
+    //    r.translate(view->mapToGlobal(QPoint(0, 0)));
+    return widget->textRect().toRect();
+}
+
+//Done
+QString KItemListWidgetAccessible::text(Text t, int child) const
+{
+    Q_ASSERT(child == 0);
+
+    QHash<QByteArray, QVariant> data = widget->data();
+    switch (t) {
+    case QAccessible::Value:
+    case QAccessible::Name:
+        return data["text"].toString();
+    case QAccessible::Description:
+        return data["text"].toString() + " : " + data["group"].toString();
+    default:
+        break;
+    }
+    return "";
+}
+
+//Done
+void KItemListWidgetAccessible::setText(QAccessible::Text /*t*/, int child, const QString &text)
+{
+    Q_ASSERT(child == 0);
+    (widget->data())["text"]=QVariant(text);
+}
+
+//Done
+bool KItemListWidgetAccessible::isValid() const
+{
+    if (index <= 0) {
+        qDebug() << "Interface is not valid";
+    }
+
+    return index > 0;
+}
+
+int KItemListWidgetAccessible::navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const
+{
+    if (relation == Ancestor && index == 1) {
+        //if (m_role == QAccessible::TreeItem) {
+        //    *iface = new QAccessibleTree(view);
+        //} else {
+        *iface = new KItemListViewAccessible(view);
+        return 0;
+    }
+
+    *iface = 0;
+    if (!view)
+        return -1;
+
+    switch (relation) {
+
+    case Child: {
+        return -1;
+    }
+    case Sibling:
+        if (index > 0) {
+            QAccessibleInterface *parent = queryAccessibleInterface(view);
+            int ret = parent->navigate(QAccessible::Child, index, iface);
+            delete parent;
+            if (*iface)
+                return ret;
+        }
+        return -1;
+
+// From table1 implementation:
+//    case Up:
+//    case Down:
+//    case Left:
+//    case Right: {
+//        // This is in the "not so nice" category. In order to find out which item
+//        // is geometrically around, we have to set the current index, navigate
+//        // and restore the index as well as the old selection
+//        view()->setUpdatesEnabled(false);
+//        const QModelIndex oldIdx = view()->currentIndex();
+//        QList<QModelIndex> kids = children();
+//        const QModelIndex currentIndex = index ? kids.at(index - 1) : QModelIndex(row);
+//        const QItemSelection oldSelection = view()->selectionModel()->selection();
+//        view()->setCurrentIndex(currentIndex);
+//        const QModelIndex idx = view()->moveCursor(toCursorAction(relation), Qt::NoModifier);
+//        view()->setCurrentIndex(oldIdx);
+//        view()->selectionModel()->select(oldSelection, QItemSelectionModel::ClearAndSelect);
+//        view()->setUpdatesEnabled(true);
+//        if (!idx.isValid())
+//            return -1;
+
+//        if (idx.parent() != row.parent() || idx.row() != row.row())
+//            *iface = cell(idx);
+//        return index ? kids.indexOf(idx) + 1 : 0; }
+    default:
+        break;
+    }
+
+    return -1;
+}
+
+QAccessible::Relation KItemListWidgetAccessible::relationTo(int child, const QAccessibleInterface *, int otherChild) const
+{
+    Q_ASSERT(child == 0);
+    Q_ASSERT(otherChild == 0);
+    /* we only check for parent-child relationships in trees
+    if (m_role == QAccessible::TreeItem && other->role(0) == QAccessible::TreeItem) {
+        QModelIndex otherIndex = static_cast<const QAccessibleTable2Cell*>(other)->m_index;
+        // is the other our parent?
+        if (otherIndex.parent() == m_index)
+            return QAccessible::Ancestor;
+        // are we the other's child?
+        if (m_index.parent() == otherIndex)
+            return QAccessible::Child;
+    }*/
+    return QAccessible::Unrelated;
+}
+
+#ifndef QT_NO_ACTION
+int KItemListWidgetAccessible::userActionCount(int) const
+{
+    return 0;
+}
+
+QString KItemListWidgetAccessible::actionText(int, Text, int) const
+{
+    return QString();
+}
+
+bool KItemListWidgetAccessible::doAction(int, int, const QVariantList &)
+{
+    return false;
+}
+
+#endif
+
+KItemListContainerAccessible::KItemListContainerAccessible(KItemListContainer *container)
+    : QAccessibleWidgetEx(container)
+    , m_container(container)
+{}
+
+KItemListContainerAccessible::~KItemListContainerAccessible ()
+{}
+
+int KItemListContainerAccessible::childCount () const
+{
+    return 1;
+}
+
+int KItemListContainerAccessible::indexOfChild ( const QAccessibleInterface * child ) const
+{
+    if(child == QAccessible::queryAccessibleInterface(m_container->controller()->view()))
+        return 1;
+    return -1;
+}
+
+bool KItemListContainerAccessible::isValid () const
+{
+    return true;
+}
+
+int KItemListContainerAccessible::navigate ( QAccessible::RelationFlag relation, int , QAccessibleInterface ** target ) const
+{
+    *target=0;
+    switch(relation){
+        case QAccessible::Child :
+            *target = new KItemListViewAccessible(m_container->controller()->view());
+            return 1; 
+        case QAccessible::Ancestor :
+            //FIXME
+            *target = 0;
+            return -1;
+        case QAccessible::Self :
+            *target = static_cast<QAccessibleInterface*>(const_cast<KItemListContainerAccessible* >(this));
+            return 0;
+        default:
+            *target=0;
+    }
+    return -1;
+}
+
+QObject *KItemListContainerAccessible::object() const
+{
+    return m_container;
+}
+
+QRect KItemListContainerAccessible::rect ( int child ) const
+{
+    if(child){
+        KItemListViewAccessible *iface = static_cast<KItemListViewAccessible* >(QAccessible::queryAccessibleInterface(m_container->controller()->view()));
+        return iface->rect(0);
+    }
+    return m_container->frameRect();
+}
+
+QAccessible::Relation KItemListContainerAccessible::relationTo ( int , const QAccessibleInterface *, int ) const
+{
+    return QAccessible::Unrelated;
+}
+
+QAccessible::Role KItemListContainerAccessible::role ( int child ) const 
+{
+    if(child)
+        return QAccessible::Table;
+    return QAccessible::Pane;
+}
+
+QAccessible::State KItemListContainerAccessible::state ( int child ) const
+{
+    return Normal | HasInvokeExtension;
+}
+
+QString KItemListContainerAccessible::text ( QAccessible::Text, int ) const
+{
+    return "";
+}
+
+#endif // QT_NO_ITEMVIEWS
+
+#endif // QT_NO_ACCESSIBILITY