[英]Chrome and IE: parallax (jQuery animate) is not smooth when using mouse wheel to scroll
我用這個jQuery腳本解決了這個問題(它為鍵盤和鼠標滾動添加了EventListener),希望它有所幫助。 :)
if (window.addEventListener) window.addEventListener('DOMMouseScroll', wheel, false);
window.onmousewheel = document.onmousewheel = wheel;
var time = 1300;
var distance = 270;
function wheel(event) {
if (event.wheelDelta) delta = event.wheelDelta / 120;
else if (event.detail) delta = -event.detail / 3;
handle();
if (event.preventDefault) event.preventDefault();
event.returnValue = false;
}
function handle() {
$('html, body').stop().animate({
scrollTop: $(window).scrollTop() - (distance * delta)
}, time);
}
$(document).keydown(function (e) {
switch (e.which) {
//up
case 38:
$('html, body').stop().animate({
scrollTop: $(window).scrollTop() - distance
}, time);
break;
//down
case 40:
$('html, body').stop().animate({
scrollTop: $(window).scrollTop() + distance
}, time);
break;
}
});
我為鍵盤修改了一些代碼,而且IE和Chrome中不再出現混蛋。
http://jsfiddle.net/cZuym/247/
我剛剛添加了e.preventDefault();
if (window.addEventListener) window.addEventListener('DOMMouseScroll', wheel, false);
window.onmousewheel = document.onmousewheel = wheel;
var time = 1000;
var distance = 300;
function wheel(event) {
if (event.wheelDelta) delta = event.wheelDelta / 120;
else if (event.detail) delta = -event.detail / 3;
handle();
if (event.preventDefault) event.preventDefault();
event.returnValue = false;
}
function handle() {
$('html, body').stop().animate({
scrollTop: $(window).scrollTop() - (distance * delta)
}, time);
}
$(document).keydown(function (e) {
switch (e.which) {
//up
case 38:
e.preventDefault();
$('html, body').stop().animate({
scrollTop: $(window).scrollTop() - distance
}, time);
break;
//down
case 40:
e.preventDefault();
$('html, body').stop().animate({
scrollTop: $(window).scrollTop() + distance
}, time);
break;
}
});
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