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fix(status_list): Guard against missing ref (#4353)

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This commit is contained in:
Sorin Davidoi
2017-07-25 02:13:05 +02:00
committed by Eugen Rochko
parent f52ce92f2b
commit 696bcff6bf
1 changed files with 11 additions and 9 deletions
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20
app/javascript/mastodon/components/status_list.js
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@ -31,16 +31,18 @@ export default class StatusList extends ImmutablePureComponent {
intersectionObserverWrapper = new IntersectionObserverWrapper();
handleScroll = debounce(() => {
const { scrollTop, scrollHeight, clientHeight } = this.node;
const offset = scrollHeight - scrollTop - clientHeight;
this._oldScrollPosition = scrollHeight - scrollTop;
if (this.node) {
const { scrollTop, scrollHeight, clientHeight } = this.node;
const offset = scrollHeight - scrollTop - clientHeight;
this._oldScrollPosition = scrollHeight - scrollTop;
if (250 > offset && this.props.onScrollToBottom && !this.props.isLoading) {
this.props.onScrollToBottom();
} else if (scrollTop < 100 && this.props.onScrollToTop) {
this.props.onScrollToTop();
} else if (this.props.onScroll) {
this.props.onScroll();
if (250 > offset && this.props.onScrollToBottom && !this.props.isLoading) {
this.props.onScrollToBottom();
} else if (scrollTop < 100 && this.props.onScrollToTop) {
this.props.onScrollToTop();
} else if (this.props.onScroll) {
this.props.onScroll();
}
}
}, 200, {
trailing: true,