1 (function ($) {
2 var mouseScroll = function (e) {
3 try {
4 var origEvent = e.originalEvent;
5 origEvent.preventDefault();
6 } catch (err) {
7 }
8 };
9 var mouseWheel = function (e) {
10 try {
11 e = e || window.event;
12 e.preventDefault();
13 e.returnValue = false;
14 } catch (err) {
15 }
16 };
17 $.fn.preventOuterScroll = function () {
18 var element = this.get(0);
19 if (navigator.userAgent.toLowerCase().indexOf("firefox") > -1) {
20 this.on("DOMMouseScroll", function (e) {
21 var origEvent = e.originalEvent;
22 element.scrollTop += origEvent.detail > 0 ? 60 : -60;
23 origEvent.preventDefault();
24 });
25 } else {
26 element.onmousewheel = function (e) {
27 e = e || window.event;
28 element.scrollTop += e.wheelDelta > 0 ? -60 : 60;
29 e.preventDefault();
30 e.returnValue = false;
31 };
32 }
33 return this;
34 };
35 $.fn.preventScroll = function () {
36 var element = this.get(0);
37 if (navigator.userAgent.toLowerCase().indexOf("firefox") > -1) {
38 this.on("DOMMouseScroll", mouseScroll);
39 } else {
40 $(element).on("mousewheel", mouseWheel);
41 }
42 return this;
43 };
44 $.fn.liveScroll = function() {
45 var element = this.get(0);
46 if (navigator.userAgent.toLowerCase().indexOf("firefox") > -1) {
47 this.off("DOMMouseScroll", mouseScroll);
48 } else {
49 $(element).off("mousewheel", mouseWheel);
50 }
51 return this;
52 };
53 }($));
