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fix(expandable section): Fix uncaught exception #10659

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Merged
merged 1 commit into from
Jul 8, 2024
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fix(expandable section): Fix uncaught exception #10659

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10 changes: 6 additions & 4 deletions packages/react-core/src/components/ExpandableSection/ExpandableSection.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -171,10 +171,12 @@ class ExpandableSection extends React.Component<ExpandableSectionProps, Expandab
};

resize = () => {
const { offsetWidth } = this.expandableContentRef.current;
if (this.state.previousWidth !== offsetWidth) {
this.setState({ previousWidth: offsetWidth });
this.checkToggleVisibility();
if (this.expandableContentRef) {
const { offsetWidth } = this.expandableContentRef.current;
Comment on lines +174 to +175
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@christianvogt christianvogt Jul 8, 2024

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How does this fix work?
this.expandableContentRef is assigned as a class property:
expandableContentRef = React.createRef<HTMLDivElement>();
Therefore this.expandableContentRef is always an object. However expandableContentRef.current may be null.

Therefore shouldn't the fix be:

if (this.expandableContentRef.current) {

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@tlabaj tlabaj Jul 9, 2024

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You are right. when i originally pushed a change i had a check to current that is missing here. I will push nother fix so it is included in our up coming release.

if (this.state.previousWidth !== offsetWidth) {
this.setState({ previousWidth: offsetWidth });
this.checkToggleVisibility();
}
}
};
handleResize = debounce(this.resize, 250);
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