Struggling to set autofocus on an input element when opening a popover. Check out the sandbox here: https://codesandbox.io/s/green-bash-x6bj4?file=/src/App.js
The issue I'm facing is that the current property is always null on ref. Is this a situation where forwardRef could be useful? I'm not very familiar with it, so thought of asking here.
Any assistance would be greatly appreciated.
You don't have to utilize a ref in this case, simply include autoFocus to your input:
<input autoFocus placeholder="Type here" />
By utilizing the open control via state, which is asynchronous, it causes a situation where the inputRef attempts to retrieve the element before the state has been updated, leading to the Proper children not being created.
To address this issue, you can introduce async/await functionality to the setState method to ensure proper operation.
const handleClick = async event => {
await setAnchorEl(event.currentTarget);
inputRef.current.focus();
};
https://codesandbox.io/s/heuristic-allen-hubry?fontsize=14&hidenavigation=1&theme=dark
Simply include a callback function after updating the state like so:
this.setState(
{
anchorEl: e.currentTarget,
isPopoverOpen: true,
},
() => {
setTimeout(() => {
if (this.inputRef.current) {
return this.inputRef.current.focus();
}
return null;
}, 200);
}
);
};
By adding a timeout, you ensure that the popover is fully loaded and the input field is visible before focusing on it. Using async/await is typically reserved for handling promises.
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