Moodle Video-Skipper

EPFL moodle video player skipper (back and forward)

On the EPFL(university) moodle site, there are videos which do not have media control options.
On the mediaspace platform, the custom speed also works.

This extensions allows users to navigate through the video using arrow keys (left and right): a tap moves the video 10 seconds, and long-pressing moves the video with 5seconds/second.
If the user presses the key "S" on the keyboard, there appears a menu(input) on the screen to select the speed of the video, and 2 buttons to skip about 30s of the video.
If they press "S" again, the popup dissapears.