ece2312ec5
## Issue `normalizeUri` | `parseURI` is expensive and has been causing sluggish operations when called repeatedly or within a loop. ## Change Since I'm not confident enough to remove the call entirely from makeSelectClaimIsMine (although I've yet to find a scenario that the uri is not already normalized), we'll try caching the calls instead. ## Results - in a simple test of toggling between 2 category pages, we saved 20ms from `parseURI` calls alone. - in a test of opening all categories one time, the memory usage remained similar. This makes sense since we removed a `makeSelect*` (which creates a selector for each call + not memoizing), and replaced that with a cached selector that's actually memoizing.
31 lines
1.3 KiB
JavaScript
31 lines
1.3 KiB
JavaScript
import { connect } from 'react-redux';
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import { selectClaimIsMineForUri, makeSelectClaimForUri, makeSelectClaimWasPurchased } from 'redux/selectors/claims';
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import {
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makeSelectFileInfoForUri,
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makeSelectDownloadingForUri,
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makeSelectLoadingForUri,
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makeSelectStreamingUrlForUri,
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} from 'redux/selectors/file_info';
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import { makeSelectCostInfoForUri } from 'lbryinc';
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import { doOpenModal, doAnalyticsView } from 'redux/actions/app';
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import { doSetPlayingUri, doPlayUri } from 'redux/actions/content';
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import FileDownloadLink from './view';
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const select = (state, props) => ({
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fileInfo: makeSelectFileInfoForUri(props.uri)(state),
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downloading: makeSelectDownloadingForUri(props.uri)(state),
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loading: makeSelectLoadingForUri(props.uri)(state),
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claimIsMine: selectClaimIsMineForUri(state, props.uri),
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claim: makeSelectClaimForUri(props.uri)(state),
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costInfo: makeSelectCostInfoForUri(props.uri)(state),
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claimWasPurchased: makeSelectClaimWasPurchased(props.uri)(state),
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streamingUrl: makeSelectStreamingUrlForUri(props.uri)(state),
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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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pause: () => dispatch(doSetPlayingUri({ uri: null })),
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download: (uri) => dispatch(doPlayUri(uri, false, true, () => dispatch(doAnalyticsView(uri)))),
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});
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export default connect(select, perform)(FileDownloadLink);
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