Method applyPointerConfinement

src/pointer_input.cpp:804–840

}

QPointF PointerInputRedirection::applyPointerConfinement(const QPointF &pos) const
{
    if (!focus()) {
        return pos;
    }
    auto s = focus()->surface();
    if (!s) {
        return pos;
    }
    auto cf = s->confinedPointer();
    if (!cf) {
        return pos;
    }
    if (!cf->isConfined()) {
        return pos;
    }

    const QPointF localPos = focus()->mapToLocal(pos);
    if (cf->region().contains(localPos)) {
        return pos;
    }

    const QPointF currentPos = focus()->mapToLocal(m_pos);

    // allow either x or y to pass
    QPointF p(currentPos.x(), localPos.y());
    if (cf->region().contains(p)) {
        return focus()->mapFromLocal(p);
    }

    p = QPointF(localPos.x(), currentPos.y());
    if (cf->region().contains(p)) {
        return focus()->mapFromLocal(p);
    }

    return m_pos;
}

PointerInputRedirection::EdgeBarrierType PointerInputRedirection::edgeBarrierType(const QPointF &pos, const RectF &lastOutputGeometry) const
{