So I have signals like "click", "up", "down", "left" and "right".

Each custom object has a property that define its state: deselected, selected and clicked.
Whenever I receive such a signal I should update those properties according to the page layout.

Let's suppose I have two "buttons" in a column and an icon in the upper-right corner of the page. On startup the focus is set on the first button, then:

1. if I receive "up" go to the icon
2. if I receive "down" go to the second button
3. if I receive "click" execute the button function

then if I moved to the second button:

1. if I receive "up" go to the first button
2. if I receive "click" execute the button function

Of course it depends on the page layout and also by the customer's requirements (i.e. when on the second button a "down" would go back to the first button or even to the icon).

Defining all these conditions with a straight fsm would require a huge quantity of if..else statements.
Is there something smarter to achieve the same?

In C/C++ I would define a list of struct bound together using pointers:

typedef struct
{
    QString name;
    item_t *up;
    item_t *down;
    item_t *left;
    item_t *right;
} item_t;

item_t items[ITEMS_NUM];
int currItem;

Whenever I receive an event I look for the current item and if the related pointer is not null I move toward the target item.

What do you suggest in QML?