Method moveCursor

launcher/ui/instanceview/InstanceView.cpp:851–986

}

QModelIndex InstanceView::moveCursor(QAbstractItemView::CursorAction cursorAction, Qt::KeyboardModifiers modifiers)
{
    auto current = currentIndex();
    if (!current.isValid()) {
        return current;
    }
    auto cat = category(current);
    int group_index = m_groups.indexOf(cat);
    if (group_index < 0)
        return current;

    QPair<int, int> pos = cat->positionOf(current);
    int column = pos.first;
    int row = pos.second;
    if (m_currentCursorColumn < 0) {
        m_currentCursorColumn = column;
    }
    // Handle different movement actions.
    switch (cursorAction) {
        case MoveUp: {
            if (row == 0) {
                int prevGroupIndex = group_index - 1;
                while (prevGroupIndex >= 0) {
                    auto prevGroup = m_groups[prevGroupIndex];
                    if (prevGroup->collapsed) {
                        prevGroupIndex--;
                        continue;
                    }
                    int newRow = prevGroup->numRows() - 1;
                    int newRowSize = prevGroup->rows[newRow].size();
                    int newColumn = m_currentCursorColumn;
                    if (m_currentCursorColumn >= newRowSize) {
                        newColumn = newRowSize - 1;
                    }
                    return prevGroup->rows[newRow][newColumn];
                }
            } else {
                int newRow = row - 1;
                int newRowSize = cat->rows[newRow].size();
                int newColumn = m_currentCursorColumn;
                if (m_currentCursorColumn >= newRowSize) {
                    newColumn = newRowSize - 1;
                }
                return cat->rows[newRow][newColumn];
            }
            return current;
        }
        case MoveDown: {
            if (row == cat->rows.size() - 1) {
                int nextGroupIndex = group_index + 1;
                while (nextGroupIndex < m_groups.size()) {
                    auto nextGroup = m_groups[nextGroupIndex];
                    if (nextGroup->collapsed) {
                        nextGroupIndex++;
                        continue;
                    }
                    int newRowSize = nextGroup->rows[0].size();
                    int newColumn = m_currentCursorColumn;