wubloader/thrimbletrimmer/scripts/keyboardShortcuts.js

function changeSpeed(direction) {
	var speeds = [0.5, 1, 1.25, 1.5, 2];
	var currentIndex = speeds.indexOf(player.playbackRate());
	if (currentIndex < 0) {
		// not present
		return;
	}
	var newIndex = currentIndex + direction;
	if (newIndex < 0 || newIndex >= speeds.length) {
		// out of range
		return
	}
	player.playbackRate(speeds[newIndex]);
}

document.addEventListener('keypress', (event) => {
    //if(event.target.nodeName == "BODY") {
    if(event.target.nodeName !== "INPUT" && event.target.nodeName !== "TEXTAREA") {
        switch(event.key) {
            case "j":
                player.currentTime(player.currentTime()-10);
                break;
            case "k":
            case " ": // also pause on space
                player.paused() ? player.play():player.pause();
                break;
            case "l":
                player.currentTime(player.currentTime()+10);
                break;
            case ",":
                player.currentTime(player.currentTime()-0.1);
                break;
            case ".":
                player.currentTime(player.currentTime()+0.1);
                break;
            case "i":
                player.trimmingControls().updateTrimTimes(player.currentTime(), player.trimmingControls().options.endTrim);
                break;
            case "o":
                player.trimmingControls().updateTrimTimes(player.trimmingControls().options.startTrim, player.currentTime());
                break;
			case "=":
				changeSpeed(1);
				break
			case "-":
				changeSpeed(-1);
				break
            case "0":
                player.currentTime(0);
                break;
            case "1":
                player.currentTime(player.duration()*0.1);
                break;
            case "2":
                player.currentTime(player.duration()*0.2);
                break;
            case "3":
                player.currentTime(player.duration()*0.3);
                break;
            case "4":
                player.currentTime(player.duration()*0.4);
                break;
            case "5":
                player.currentTime(player.duration()*0.5);
                break;
            case "6":
                player.currentTime(player.duration()*0.6);
                break;
            case "7":
                player.currentTime(player.duration()*0.7);
                break;
            case "8":
                player.currentTime(player.duration()*0.8);
                break;
            case "9":
                player.currentTime(player.duration()*0.9);
                break;
        }
    }

    // const keyName = event.key;
    // console.log('keypress event\n\n' + 'key: ' + keyName);
    // console.log(event.target.nodeName);
});

//Arrow keys only detected on keydown, keypress only works in "some" browsers
document.addEventListener('keydown', (event) => {
    if(event.target.nodeName !== "INPUT" && event.target.nodeName !== "TEXTAREA") {
        switch(event.keyCode) {
            case 37:
                player.currentTime(player.currentTime()-5);
                break;
            case 39:
                player.currentTime(player.currentTime()+5);
                break;

        }
    }
});