vpn.email/bower_components/metro/js/utils/touch-handler.js

vpn.email client

var hasTouch = 'ontouchend' in window, eventTimer;
var moveDirection = 'undefined', startX, startY, deltaX, deltaY, mouseDown = false;

var addTouchEvents = function(element) {
    if (hasTouch) {
        element.addEventListener("touchstart", touch2Mouse, true);
        element.addEventListener("touchmove", touch2Mouse, true);
        element.addEventListener("touchend", touch2Mouse, true);
    }
};

function touch2Mouse(e) {
    var theTouch = e.changedTouches[0];
    var mouseEv;

    switch (e.type) {
        case "touchstart":
            mouseEv = "mousedown";
            break;
        case "touchend":
            mouseEv = "mouseup";
            break;
        case "touchmove":
            mouseEv = "mousemove";
            break;
        default:
            return;
    }


    if (mouseEv == "mousedown") {
        eventTimer = (new Date()).getTime();
        startX = theTouch.clientX;
        startY = theTouch.clientY;
        mouseDown = true;
    }

    if (mouseEv == "mouseup") {
        if ((new Date()).getTime() - eventTimer <= 500) {
            mouseEv = "click";
        } else if ((new Date()).getTime() - eventTimer > 1000) {
            mouseEv = "longclick";
        }
        eventTimer = 0;
        mouseDown = false;
    }

    if (mouseEv == "mousemove") {
        if (mouseDown) {
            deltaX = theTouch.clientX - startX;
            deltaY = theTouch.clientY - startY;
            moveDirection = deltaX > deltaY ? 'horizontal' : 'vertical';
        }
    }

    var mouseEvent = document.createEvent("MouseEvent");
    mouseEvent.initMouseEvent(mouseEv, true, true, window, 1, theTouch.screenX, theTouch.screenY, theTouch.clientX, theTouch.clientY, false, false, false, false, 0, null);
    theTouch.target.dispatchEvent(mouseEvent);

    e.preventDefault();
}