我知道可以检测上下方向,例如:
function handle(delta) {
if (delta < 0) {
alert('down');
} else {
alert('up');
}
}
function wheel(event){
var delta = 0;
if (!event) event = window.event;
if (event.wheelDelta) {
delta = event.wheelDelta/120;
} else if (event.detail) {
delta = -event.detail/3;
}
if (delta)
handle(delta);
if (event.preventDefault)
event.preventDefault();
event.returnValue = false;
}
/* Initialization code. */
if (window.addEventListener)
window.addEventListener('DOMMouseScroll', wheel, false);
window.onmousewheel = document.onmousewheel = wheel;
但是有没有一种方法可以检测用户使用鼠标滚轮向左或向右滚动?