0f68bad3eb
## Why Frequently used; top in perf profile ## Changes 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.
33 lines
1 KiB
JavaScript
33 lines
1 KiB
JavaScript
import { connect } from 'react-redux';
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import {
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selectClaimIsMine,
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makeSelectTitleForUri,
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makeSelectThumbnailForUri,
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selectClaimForUri,
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makeSelectIsUriResolving,
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makeSelectMetadataItemForUri,
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} from 'redux/selectors/claims';
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import { doResolveUri } from 'redux/actions/claims';
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import { selectBlackListedOutpoints } from 'lbryinc';
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import PreviewLink from './view';
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const select = (state, props) => {
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const claim = selectClaimForUri(state, props.uri);
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return {
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uri: props.uri,
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claim,
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title: makeSelectTitleForUri(props.uri)(state),
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thumbnail: makeSelectThumbnailForUri(props.uri)(state),
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description: makeSelectMetadataItemForUri(props.uri, 'description')(state),
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channelIsMine: selectClaimIsMine(state, claim),
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isResolvingUri: makeSelectIsUriResolving(props.uri)(state),
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blackListedOutpoints: selectBlackListedOutpoints(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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});
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export default connect(select, perform)(PreviewLink);
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