I would like to add about the text input: I expected that if I edit my text input e.g. put the caret (text cursor) in the beginning of the text, then the focus will change. This is not the case, even when typing.

It also ignores the cursor position in the entered text (i.e., it will always look at the last character). That's because the code creates a fake input element with the same font and input as the visible element and uses its size to determine the position to look at. Strange that it doesn't work for input with leading spaces, though.

I will look into this, thanks for letting me know