Custom logic on the submit screen - Interactive Video

Dear H5P-community

H5p is a great library!Thanks for your work!

I have some problems in the process of using interactive video.

I am using moodle's hvp plugin. How can I add custom js logic when I click the submit button in the submission screen, for example, click the submit button and I want to pop up a js signature window.

I can't find the click event when I submitted the button. Can you tell me which js file should I modify?


Best Regards,