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cache currently-viewing status id to avoid calling redux with identical value

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This commit is contained in:
Matt Panaro 2019-12-27 09:43:09 -05:00
parent 07e26142ef
commit c93df2159f
1 changed files with 7 additions and 0 deletions
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7
app/javascript/mastodon/components/status_list.js
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@ -60,6 +60,12 @@ export default class StatusList extends ImmutablePureComponent {
this.props.onLoadMore(this.props.statusIds.size > 0 ? this.props.statusIds.last() : undefined);
}, 300, { leading: true })
updateCurrentlyViewingWithCache = (id) => {
if(this.cachedCurrentlyViewing === id) return;
this.cachedCurrentlyViewing = id;
this.props.updateCurrentlyViewing(id);
}
_selectChild (index, align_top) {
const container = this.node.node;
const element = container.querySelector(`article:nth-of-type(${index + 1}) .focusable`);
@ -81,6 +87,7 @@ export default class StatusList extends ImmutablePureComponent {
render () {
const { statusIds, featuredStatusIds, shouldUpdateScroll, onLoadMore, timelineId, ...other } = this.props;
const { isLoading, isPartial } = other;
other.updateCurrentlyViewing = this.updateCurrentlyViewingWithCache;
if (isPartial) {
return <RegenerationIndicator />;