[QUESTION] How to load the font of the content?

[mukhtharcm]

I've implemented custom font menu by using this method #59 (comment)

but when using the editor, is there any way to properly update the dropdown with the value of the existing font?

ie, I have a 3 paragraph essay, first one is in arabic, second paragraph is in English and the third paragraph is in Some other language.
I have 3 separate fonts for all these languages.

my question is, when I open this document later on, and move my cursor to the arabic part, is there any way to update the dropdown to the arabic font?