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.
46 lines
1.8 KiB
JavaScript
46 lines
1.8 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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makeSelectCoverForUri,
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selectCurrentChannelPage,
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selectClaimForUri,
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makeSelectClaimIsPending,
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} from 'redux/selectors/claims';
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import { selectMyUnpublishedCollections } from 'redux/selectors/collections';
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import { selectBlackListedOutpoints, doFetchSubCount, makeSelectSubCountForUri } from 'lbryinc';
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import { selectYoutubeChannels } from 'redux/selectors/user';
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import { makeSelectIsSubscribed } from 'redux/selectors/subscriptions';
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import { selectModerationBlockList } from 'redux/selectors/comments';
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import { selectMutedChannels } from 'redux/selectors/blocked';
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import { doOpenModal } from 'redux/actions/app';
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import ChannelPage 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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title: makeSelectTitleForUri(props.uri)(state),
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thumbnail: makeSelectThumbnailForUri(props.uri)(state),
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cover: makeSelectCoverForUri(props.uri)(state),
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channelIsMine: selectClaimIsMine(state, claim),
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page: selectCurrentChannelPage(state),
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claim,
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isSubscribed: makeSelectIsSubscribed(props.uri, true)(state),
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blackListedOutpoints: selectBlackListedOutpoints(state),
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subCount: makeSelectSubCountForUri(props.uri)(state),
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pending: makeSelectClaimIsPending(props.uri)(state),
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youtubeChannels: selectYoutubeChannels(state),
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blockedChannels: selectModerationBlockList(state),
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mutedChannels: selectMutedChannels(state),
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unpublishedCollections: selectMyUnpublishedCollections(state),
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};
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};
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const perform = (dispatch) => ({
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openModal: (modal, props) => dispatch(doOpenModal(modal, props)),
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fetchSubCount: (claimId) => dispatch(doFetchSubCount(claimId)),
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});
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export default connect(select, perform)(ChannelPage);
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