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import React from 'react';
import { Poll } from 'which-types';
import { WindowScroller, AutoSizer, List } from 'react-virtualized';
import PollCard from '../PollCard/PollCard';
interface PropTypes {
polls: Poll[];
mutate: (polls: Poll[], refetch: boolean) => void;
}
interface RenderPropTypes {
index: number;
key: string;
style: React.CSSProperties;
}
const PollsList: React.FC<PropTypes> = ({ polls, mutate }) => {
const RenderItem: React.FC<RenderPropTypes> = ({ index, style, key }) => {
const poll = polls[index];
const setPoll = (newPoll: Poll) => {
const newPolls = [...polls];
newPolls[index] = newPoll;
// Force-update list-size so everything re-renders
mutate([], false);
mutate(newPolls, false);
};
return (
// To re-render on list resize, add this info to key
<div key={`${key}-${poll._id}-${polls.length}`} style={style}>
<PollCard poll={poll} setPoll={setPoll} />
</div>
);
};
return (
<WindowScroller>
{({
height,
isScrolling,
registerChild,
onChildScroll,
scrollTop
}) => (
<AutoSizer disableHeight>
{({ width }) => (
<div ref={registerChild}>
<List
autoHeight
height={height}
isScrolling={isScrolling}
onScroll={onChildScroll}
rowCount={polls.length}
rowHeight={550}
rowRenderer={RenderItem}
scrollTop={scrollTop}
width={width}
containerStyle={{ pointerEvents: 'auto' }}
overscanRowCount={1}
/>
</div>
)}
</AutoSizer>
)}
</WindowScroller>
);
};
export default PollsList;
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