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Memoize ancestorIds and descendantIds in detailed status view (#11234)

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ThibG 2019-07-02 16:03:54 +02:00 committed by Eugen Rochko
parent d588173ab3
commit 363afe5e05
1 changed files with 47 additions and 27 deletions
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40
app/javascript/mastodon/features/status/index.js
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@ -4,6 +4,7 @@ import { connect } from 'react-redux';
import PropTypes from 'prop-types'; import PropTypes from 'prop-types';
import classNames from 'classnames'; import classNames from 'classnames';
import ImmutablePropTypes from 'react-immutable-proptypes'; import ImmutablePropTypes from 'react-immutable-proptypes';
import { createSelector } from 'reselect';
import { fetchStatus } from '../../actions/statuses'; import { fetchStatus } from '../../actions/statuses';
import MissingIndicator from '../../components/missing_indicator'; import MissingIndicator from '../../components/missing_indicator';
import DetailedStatus from './components/detailed_status'; import DetailedStatus from './components/detailed_status';
@ -63,29 +64,36 @@ const messages = defineMessages({
const makeMapStateToProps = () => { const makeMapStateToProps = () => {
const getStatus = makeGetStatus(); const getStatus = makeGetStatus();
const mapStateToProps = (state, props) => { const getAncestorsIds = createSelector([
const status = getStatus(state, { id: props.params.statusId }); (_, { id }) => id,
state => state.getIn(['contexts', 'inReplyTos']),
], (statusId, inReplyTos) => {
let ancestorsIds = Immutable.List(); let ancestorsIds = Immutable.List();
let descendantsIds = Immutable.List();
if (status) {
ancestorsIds = ancestorsIds.withMutations(mutable => { ancestorsIds = ancestorsIds.withMutations(mutable => {
let id = status.get('in_reply_to_id'); let id = statusId;
while (id) { while (id) {
mutable.unshift(id); mutable.unshift(id);
id = state.getIn(['contexts', 'inReplyTos', id]); id = inReplyTos.get(id);
} }
}); });
return ancestorsIds;
});
const getDescendantsIds = createSelector([
(_, { id }) => id,
state => state.getIn(['contexts', 'replies']),
], (statusId, contextReplies) => {
let descendantsIds = Immutable.List();
descendantsIds = descendantsIds.withMutations(mutable => { descendantsIds = descendantsIds.withMutations(mutable => {
const ids = [status.get('id')]; const ids = [statusId];
while (ids.length > 0) { while (ids.length > 0) {
let id = ids.shift(); let id = ids.shift();
const replies = state.getIn(['contexts', 'replies', id]); const replies = contextReplies.get(id);
if (status.get('id') !== id) { if (statusId !== id) {
mutable.push(id); mutable.push(id);
} }
@ -96,6 +104,18 @@ const makeMapStateToProps = () => {
} }
} }
}); });
return descendantsIds;
});
const mapStateToProps = (state, props) => {
const status = getStatus(state, { id: props.params.statusId });
let ancestorsIds = Immutable.List();
let descendantsIds = Immutable.List();
if (status) {
ancestorsIds = getAncestorsIds(state, { id: status.get('in_reply_to_id') });
descendantsIds = getDescendantsIds(state, { id: status.get('id') });
} }
return { return {