With Metro UI CSS creating a draggable is pretty easy:
<div data-role="draggable"></div>
It's fun for the end user to drag an element like this, and it would be even nice if I could save the position of draggable (after being dragged) for the user's next visit. So how can I do this?
With these type of things it's typical in which javascript handles it's css as a style attribute (and does so in this case). You could just save it's style attribute in localStorage.
HTML:
<div class="box" data-role="draggable"></div>
JavaScript/JQuery:
if ( localStorage.getItem("elmPos")) {
$(".box").attr("style", localStorage.getItem("elmPos"))
}
$(".box").on("mousedown touchstart mousemove touchmove mouseup touchend", function() {
localStorage.setItem("elmPos", $(".box").attr("style"))
})