强制展开 state 的 Material-UI 手风琴

Question

We use Accordions to display editable entities and want to lock modified entities in the expanded state. Currently, we are forced to lift up expanded state into accordion wrapper, practically duplicating built-in functionality, to prevent controlled<->uncontrolled Accordeon component transition (which is prohibited by MUI). Something like this:

const AccordionWrapper = ({isModified = false, ...otherProps}) => {
  const [expanded, setExpanded] = useState(isModified);

  return (
    <Accordion
      expanded={expanded}
      onChange={(_, expanded) => {
        setExpanded(expanded || isModified);
      }}
      ...otherProps
    /> );
}

Is there a better way to achieve it?

Alternatives we have considered:

1. <Accordion disabled={isModified}> + custom styles to make disabled accordion look not so disabled (grayish). This is a little daunting that there is (an unlikely) chance to lock component in a collapsed state cause we don't control it.
2. Send PR to allow controlled<->uncontrolled transition of expanded . In this case we could <Accorrdion expanded={isModified? true: undefined}> <Accorrdion expanded={isModified? true: undefined}> . Actually, there is no strong technical problem with such transition (especially when/if https://github.com/mui-org/material-ui/pull/29237 gets merged)
3. Maybe add a new Accordion prop like "forceExpand" if MUI team will find it useful

PS. I hope MUI devs will see points 2 and 3 here on SO, cause these questions/suggestions probably are a non-issue and should not be in the MUI issue tracker.

Answer 1

If you want to add a custom expand toggle on MUI Accordion then you get the same with a property:-

defaultExpanded={Boolean}

So it will be like:-

<Accordion defaultExpanded={true}>
{...otherProps}
</Accordon>