TextField dimensions after <img> loaded

I have a text field that is assigned some HTML text which alongside the text itself also contains an “img” tag for displaying an image.

I also am resizing the interface based of the dimensions of the text field and the problem that I have is that the interface resize needs to occur after the image has been loaded in the text field.

I haven’t been able to find an event of the TextField class for this. Is there en event for this ?

Or what should I do to accomplish this ?