lbry-desktop/ui/component/collectionPreviewTile/index.js
jessopb a3398843c2
Optimize selectClaimIsMine (#7370)
Frequently used; top in perf profile

Most of the time, you already have the claim object in the current context. `selectClaimIsMineForUri` will retrieve the claim again, which is wasteful, even if it is memoized (looking up the cache still takes time).

Break apart the logic and added the alternative `selectClaimIsMine` for faster lookup.

Co-authored-by: infinite-persistence <inf.persistence@gmail.com>
2021-12-31 12:52:26 -05:00

59 lines
2.6 KiB
JavaScript

import { connect } from 'react-redux';
import {
makeSelectIsUriResolving,
makeSelectThumbnailForUri,
makeSelectTitleForUri,
makeSelectChannelForClaimUri,
makeSelectClaimIsNsfw,
selectClaimIdForUri,
makeSelectClaimForClaimId,
} from 'redux/selectors/claims';
import {
makeSelectUrlsForCollectionId,
makeSelectNameForCollectionId,
makeSelectEditedCollectionForId,
makeSelectPendingCollectionForId,
makeSelectCountForCollectionId,
makeSelectIsResolvingCollectionForId,
} from 'redux/selectors/collections';
import { doFetchItemsInCollection, doCollectionDelete } from 'redux/actions/collections';
import { doResolveUri } from 'redux/actions/claims';
import { selectMutedChannels } from 'redux/selectors/blocked';
import { selectBlackListedOutpoints, selectFilteredOutpoints } from 'lbryinc';
import { selectShowMatureContent } from 'redux/selectors/settings';
import CollectionPreviewTile from './view';
const select = (state, props) => {
const collectionId = props.collectionId || (props.uri && selectClaimIdForUri(state, props.uri));
const claim = props.collectionId && makeSelectClaimForClaimId(props.collectionId)(state);
const collectionUri = props.uri || (claim && (claim.canonical_url || claim.permanent_url)) || null;
return {
collectionId,
uri: collectionUri,
collectionCount: makeSelectCountForCollectionId(collectionId)(state),
collectionName: makeSelectNameForCollectionId(collectionId)(state),
collectionItemUrls: makeSelectUrlsForCollectionId(collectionId)(state), // ForId || ForUri
editedCollection: makeSelectEditedCollectionForId(collectionId)(state),
pendingCollection: makeSelectPendingCollectionForId(collectionId)(state),
claim,
isResolvingCollectionClaims: makeSelectIsResolvingCollectionForId(collectionId)(state),
channelClaim: collectionUri && makeSelectChannelForClaimUri(collectionUri)(state),
isResolvingUri: collectionUri && makeSelectIsUriResolving(collectionUri)(state),
thumbnail: collectionUri && makeSelectThumbnailForUri(collectionUri)(state),
title: collectionUri && makeSelectTitleForUri(collectionUri)(state),
blackListedOutpoints: selectBlackListedOutpoints(state),
filteredOutpoints: selectFilteredOutpoints(state),
blockedChannelUris: selectMutedChannels(state),
showMature: selectShowMatureContent(state),
isMature: makeSelectClaimIsNsfw(collectionUri)(state),
};
};
const perform = (dispatch) => ({
resolveUri: (uri) => dispatch(doResolveUri(uri)),
resolveCollectionItems: (options) => doFetchItemsInCollection(options),
deleteCollection: (id) => dispatch(doCollectionDelete(id)),
});
export default connect(select, perform)(CollectionPreviewTile);