Pause, resume, and navigation manipulation for impress.js.

I had a few use cases for hijacking the navigation controls during certain steps for sub interactions and duration changes that needed more than the .impress-on, .active, and .present classes, so I created impause.js.

It adds a pause() and resume() function to the API on initialization as well as a paused property to check the state. You can also assign new functions to the next and previous keys.

impress().pause()

or

var api = impress();
api.pause()`

api.pause().next(function() {
    // run some new code when the next keys are hit
}
api.pause().prev(function() {
    // run some new code when the previous keys are hit
}

api.resume();

<script src="js/impress.js"></script>
<script src="js/impause.js"></script>
<script>
    var api = impress();
    api.init();
    
    document.addEventListener('impress:stepenter', function(event) {
        if (event.target.id === 'step-2') {
            api.pause().next(function() {
                api.goto('step-3', 500);
                api.resume();
            });
        }
    }, false);
</script>