Is it possible to add a class to a custom tinyMCE button?

Question

I have a a webpage in which i use jQuery UI and tinyMCE in combination. I have added a custom button with the intention to use this button to drag a draggeble textfield:

the code:

editor.addButton('drag', {
                text: 'Drag',
                icon: false,
                onclick: function() {
                // somehow add the class '.handle' to the drag button
                }
            });
        }

Can i add a class ".handle" to the custom tinyMCE drag button? or is this not posible.

Answer 1

You can add a subtype property to the settings.

That will append a class with the name mce-[subtype].

Refer to this codepen