lbry-desktop/ui/component/previewOverlayProperties/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

21 lines
867 B
JavaScript

import { connect } from 'react-redux';
import { selectClaimIsMine, selectClaimForUri } from 'redux/selectors/claims';
import { makeSelectFilePartlyDownloaded } from 'redux/selectors/file_info';
import { makeSelectEditedCollectionForId } from 'redux/selectors/collections';
import { makeSelectIsSubscribed } from 'redux/selectors/subscriptions';
import PreviewOverlayProperties from './view';
const select = (state, props) => {
const claim = selectClaimForUri(state, props.uri);
const claimId = claim && claim.claim_id;
return {
claim,
editedCollection: makeSelectEditedCollectionForId(claimId)(state),
downloaded: makeSelectFilePartlyDownloaded(props.uri)(state),
isSubscribed: makeSelectIsSubscribed(props.uri)(state),
claimIsMine: selectClaimIsMine(state, claim),
};
};
export default connect(select, null)(PreviewOverlayProperties);