javascript - animated scrolling script prevents local anchor positions to be accessed from external links

Question

I have a onepager site where I use scrollmagic plus all its necessary plugins/libraries (and jQuery) for different effects where animation, pinning, fading processes etc. are triggered by scroll positions.

I also use it for animated scrolling to the anchor points on the page (from the menu and from other local links) - see the according part of the script below.

The problem is that this script suppresses the default behaviour of "jumping" directly to an anchorpoint when a local link is clicked, and apparently also when the page is accessed from outside via a direct link or bookmark with an anchor appended to the URL (like http://www.example.com/index.php#part3). Altough this behaviour is desired when clicking a local link, it obviously prevents the browser from displaying the anchor position when an anchor is linked from somewhere else.

Is there any way to make the browser directly display that anchor position when a link like in the above example is clicked?

var sm_controller_1 = new ScrollMagic.Controller();

sm_controller_1.scrollTo(function(anchor_id) {
        TweenMax.to(window, 2.0, {
                scrollTo: {
                        y: anchor_id
                        autoKill: true
                },
                ease: Cubic.easeInOut
        });
});
jQuery(document).on("click", "a[href^=#]", function(e) {
        var id = jQuery(this).attr('href');
        if(jQuery(id).length > 0) {
                e.preventDefault();
                sm_controller_1.scrollTo(id);
                if (window.history && window.history.pushState) {
                        history.pushState("", document.title, id);
                }
        }
});

(It doesn't make sense to create a fiddle/codepen since the problem lies in calling the original URL from an external source).

Answer 1

Well assuming scroll magic doesnt have extra functionality that is not posted here that would get in the way of my answer you could try this:

Add a data-attribute to your links which you want to use default behavior:

<a href="example.com/index.php#part3.php" data-default="true">

Check if that data attribute exists and if it does return true in your click handler to continue with the default behavior:

var sm_controller_1 = new ScrollMagic.Controller();

sm_controller_1.scrollTo(function(anchor_id) {
        TweenMax.to(window, 2.0, {
                scrollTo: {
                        y: anchor_id
                        autoKill: true
                },
                ease: Cubic.easeInOut
        });
});
jQuery(document).on("click", "a[href^=#]", function(e) {
        if(e.currentTarget.dataset.default){
            return true;
        }
        var id = jQuery(this).attr('href');
        if(jQuery(id).length > 0) {
                e.preventDefault();
                sm_controller_1.scrollTo(id);
                if (window.history && window.history.pushState) {
                        history.pushState("", document.title, id);
                }
        }
});