Do not call setState from unmounted component (#3853)
Stop an executing task if the component already unmounted.main
parent
eb832e88f4
commit
1fc6cb4997
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@ -86,6 +86,8 @@ class Status extends ImmutablePureComponent {
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this.node,
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this.handleIntersection
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);
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this.componentMounted = true;
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}
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componentWillUnmount () {
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@ -96,6 +98,8 @@ class Status extends ImmutablePureComponent {
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}
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this.props.intersectionObserverWrapper.unobserve(this.props.id, this.node);
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this.componentMounted = false;
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}
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handleIntersection = (entry) => {
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@ -116,6 +120,10 @@ class Status extends ImmutablePureComponent {
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}
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hideIfNotIntersecting = () => {
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if (!this.componentMounted) {
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return;
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}
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// When the browser gets a chance, test if we're still not intersecting,
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// and if so, set our isHidden to true to trigger an unrender. The point of
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// this is to save DOM nodes and avoid using up too much memory.
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