0c2c21b67e
## Issue `makeSelectDataForUri` always returns a new reference, so `ClaimPreview` was constantly being rendered. It's pretty expensive since `ClaimPreview`'s rendering checks against a huge blocklist, which is another issue on it's own. ## Changes - This commit tests the usage of `re-reselect` as the solution to the multi-instance memoization problem (https://github.com/toomuchdesign/re-reselect/blob/master/examples/1-join-selectors.md)
50 lines
2.1 KiB
JavaScript
50 lines
2.1 KiB
JavaScript
import { connect } from 'react-redux';
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import {
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makeSelectClaimForUri,
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makeSelectIsUriResolving,
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makeSelectThumbnailForUri,
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makeSelectTitleForUri,
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makeSelectChannelForClaimUri,
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makeSelectClaimIsNsfw,
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makeSelectClaimIsStreamPlaceholder,
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selectDateForUri,
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} from 'redux/selectors/claims';
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import { doFileGet } from 'redux/actions/file';
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import { doResolveUri } from 'redux/actions/claims';
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import { selectMutedChannels } from 'redux/selectors/blocked';
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import { makeSelectViewCountForUri, selectBlackListedOutpoints, selectFilteredOutpoints } from 'lbryinc';
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import { makeSelectIsActiveLivestream } from 'redux/selectors/livestream';
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import { selectShowMatureContent } from 'redux/selectors/settings';
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import ClaimPreviewTile from './view';
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import formatMediaDuration from 'util/formatMediaDuration';
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const select = (state, props) => {
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const claim = props.uri && makeSelectClaimForUri(props.uri)(state);
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const media = claim && claim.value && (claim.value.video || claim.value.audio);
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const mediaDuration = media && media.duration && formatMediaDuration(media.duration, { screenReader: true });
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return {
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claim,
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mediaDuration,
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date: props.uri && selectDateForUri(state, props.uri),
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channel: props.uri && makeSelectChannelForClaimUri(props.uri)(state),
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isResolvingUri: props.uri && makeSelectIsUriResolving(props.uri)(state),
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thumbnail: props.uri && makeSelectThumbnailForUri(props.uri)(state),
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title: props.uri && makeSelectTitleForUri(props.uri)(state),
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blackListedOutpoints: selectBlackListedOutpoints(state),
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filteredOutpoints: selectFilteredOutpoints(state),
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blockedChannelUris: selectMutedChannels(state),
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showMature: selectShowMatureContent(state),
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isMature: makeSelectClaimIsNsfw(props.uri)(state),
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isLivestream: makeSelectClaimIsStreamPlaceholder(props.uri)(state),
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isLivestreamActive: makeSelectIsActiveLivestream(props.uri)(state),
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viewCount: makeSelectViewCountForUri(props.uri)(state),
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};
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};
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const perform = (dispatch) => ({
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resolveUri: (uri) => dispatch(doResolveUri(uri)),
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getFile: (uri) => dispatch(doFileGet(uri, false)),
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});
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export default connect(select, perform)(ClaimPreviewTile);
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