trackpad scrolling detected multiple times
var scrolling = false;
var oldTime = 0;
var newTime = 0;
var isTouchPad;
var eventCount = 0;
var eventCountStart;
var mouseHandle = function (evt) {
var isTouchPadDefined = isTouchPad || typeof isTouchPad !== "undefined";
console.log(isTouchPadDefined);
if (!isTouchPadDefined) {
if (eventCount === 0) {
eventCountStart = new Date().getTime();
}
eventCount++;
if (new Date().getTime() - eventCountStart > 100) {
if (eventCount > 10) {
isTouchPad = true;
} else {
isTouchPad = false;
}
isTouchPadDefined = true;
}
}
if (isTouchPadDefined) {
// here you can do what you want
// i just wanted the direction, for swiping, so i have to prevent
// the multiple event calls to trigger multiple unwanted actions (trackpad)
if (!evt) evt = event;
var direction = (evt.detail<0 || evt.wheelDelta>0) ? 1 : -1;
if (isTouchPad) {
newTime = new Date().getTime();
if (!scrolling && newTime-oldTime > 550 ) {
scrolling = true;
if (direction < 0) {
// swipe down
} else {
// swipe up
}
setTimeout(function() {oldTime = new Date().getTime();scrolling = false}, 500);
}
} else {
if (direction < 0) {
// swipe down
} else {
// swipe up
}
}
}
}
document.addEventListener("mousewheel", mouseHandle, false);
document.addEventListener("DOMMouseScroll", mouseHandle, false);