reactjsreact-sortable-hoc

Sorting React elements using a react sorting library


I want to use a React sorting library called, React Sortable HOC. It seems like a great library, but I'm having trouble trying to figure out how to use it in my instance.

I set it up like one of the examples they provided:

const SortableItem = SortableElement(({ value }) => <li>{value}</li>);

const SortableList = SortableContainer(({ items }) => {
    return (
        <ul>
            {items.map((value, index) => (
                <SortableItem key={`item-${value}`} index={index} value={value} />
            ))}
        </ul>
    );
});

const onSortEnd = ({ oldIndex, newIndex }) => {
    this.setState(({ items }) => ({
        items: arrayMove(items, oldIndex, newIndex),
    }));
};

In the example, they map it from state like this:

return (
  <SortableContainer onSortEnd={this.onSortEnd}>
    {items.map((value, index) => (
      <SortableItem key={`item-${value}`} index={index} value={value} />
    ))}
  </SortableContainer>
);

But in my case, I am using 'map' to go through my state item(starships) and generating my data like this:

return (
   <div>
      {starships.map((starShip) => (
                <Ship starShip={starShip} />
      ))}
   </div>
);

Where Ship is this element:

const Ship = ({ ship: { ShipId, ShipName } }) => (
    <tr key={ShipId}>
        <td>{ShipNameName}</td>
    </tr>
);

I can't figure out how I'd use this library with the way I have my application set up.

Is there anyone who has used it like this?

Thanks!


Solution

  • Here is an example of how you can use it:

    const { SortableContainer, SortableElement } = SortableHOC;
    const arrayMoveMutate = (array, from, to) => {
      array.splice(
        to < 0 ? array.length + to : to,
        0,
        array.splice(from, 1)[0]
      );
    };
    
    const arrayMove = (array, from, to) => {
      array = array.slice();
      arrayMoveMutate(array, from, to);
      return array;
    };
    function App() {
      const [ships, setShips] = React.useState([
        { ShipName: 'ship a', ShipId: 1 },
        { ShipName: 'ship b', ShipId: 2 },
        { ShipName: 'ship c', ShipId: 3 },
      ]);
      const onSortEnd = React.useCallback(
        ({ oldIndex, newIndex }) => {
          setShips(ships =>
            arrayMove(ships, oldIndex, newIndex)
          );
        },
        []
      );
    
      return (
        <SortableList items={ships} onSortEnd={onSortEnd} />
      );
    }
    const SortableList = SortableContainer(({ items }) => {
      return (
        <ul>
          {items.map((ship, index) => (
            <Ship
              key={ship.ShipId}
              index={index}
              value={ship}
            />
          ))}
        </ul>
      );
    });
    
    const Ship = SortableElement(
      ({ value }) => <li>{value.ShipName}</li>
    );
    ReactDOM.render(<App />, document.getElementById('root'));
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.4/umd/react.production.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.4/umd/react-dom.production.min.js"></script>
    <div id="root"></div>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-sortable-hoc/0.9.0/react-sortable-hoc.min.js"></script>