How can I trigger the LexicalTypeaheadMenuPlugin when it's focused and has no value?

[newfish-cmyk]

I want to create an editor like an HTML input. One feature is that when I focus on the editor, a dropdown menu will appear.

Do you have any ideas?

[newfish-cmyk]

So I ended up handwriting a module "DropDownMenu", adding some conditional judgments and keyboard response events, etc., which met the requirements🤪.