[TreeView] Add prop to disable type-ahead focusing

[ohmsl]

Expected Behaviour

<SimpleTreeView disableTypeAheadFocusing>
     <TreeItem
      itemId={id}
      label={label}
     />
</SimpleTreeView>

Temporary Workaround

This simple workaround works, but it also disables more useful keyboard navigation like the arrow keys.

<SimpleTreeView onKeyDownCapture={(e) => e.stopPropagation()}>
     <TreeItem
      itemId={id}
      label={label}
     />
</SimpleTreeView>

Search keywords: type ahead, focusing, single character

[flaviendelangle]

Hi Thanks for your issue.

You can use event.defaultMuiPrevented = true to only prevent the MUI logic without totally stopping the propagation. The following example should keep all the other keyboard interactions.

I'm keeping this issue with "Waiting for upvote" for a built-in support. And I will fire a pull request to make MuiCancellableEventHandler which I uses in this example public :+1:

[ohmsl]

Thank you Flavien 🙏🏼