javascript tap and hold
var onlongtouch;
var timer;
var touchduration = 800; //length of time we want the user to touch before we do something
function touchstart(e) {
e.preventDefault();
if (!timer) {
timer = setTimeout(onlongtouch, touchduration);
}
}
function touchend() {
//stops short touches from firing the event
if (timer) {
clearTimeout(timer);
timer = null;
}
}
onlongtouch = function() {
timer = null;
document.getElementById('ping').innerText+='ping\n';
};
document.addEventListener("DOMContentLoaded", function(event) {
window.addEventListener("touchstart", touchstart, false);
window.addEventListener("touchend", touchend, false);
});