jquery：临时禁止鼠标滚动 How to disable scrolling temporarily?

1. 代码：

// left: 37, up: 38, right: 39, down: 40,
// spacebar: 32, pageup: 33, pagedown: 34, end: 35, home: 36
var keys = {37: 1, 38: 1, 39: 1, 40: 1};

function preventDefault(e) {
  e = e || window.event;
  if (e.preventDefault)
      e.preventDefault();
  e.returnValue = false;  
}

function preventDefaultForScrollKeys(e) {
    if (keys[e.keyCode]) {
        preventDefault(e);
        return false;
    }
}

function disableScroll() {
  if (window.addEventListener) // older FF
      window.addEventListener('DOMMouseScroll', preventDefault, false);
  window.onwheel = preventDefault; // modern standard
  window.onmousewheel = document.onmousewheel = preventDefault; // older browsers, IE
  window.ontouchmove  = preventDefault; // mobile
  document.onkeydown  = preventDefaultForScrollKeys;
}

function enableScroll() {
    if (window.removeEventListener)
        window.removeEventListener('DOMMouseScroll', preventDefault, false);
    window.onmousewheel = document.onmousewheel = null; 
    window.onwheel = null; 
    window.ontouchmove = null;  
    document.onkeydown = null;  
}

实例：http://output.jsbin.com/xatidu/4/

转自：http://stackoverflow.com/a/4770179/4484798

2. 以上功能的jquery版：

/**
 * $.disablescroll
 * Author: Josh Harrison - aloofdesign.com
 *
 * Disables scroll events from mousewheels, touchmoves and keypresses.
 * Use while jQuery is animating the scroll position for a guaranteed super-smooth ride!
 */(function(e){"use strict";function r(t,n){this.opts=e.extend({handleKeys:!0,scrollEventKeys:[32,33,34,35,36,37,38,39,40]},n);this.$container=t;this.$document=e(document);this.lockToScrollPos=[0,0];this.disable()}var t,n;n=r.prototype;n.disable=function(){var e=this;e.lockToScrollPos=[e.$container.scrollLeft(),e.$container.scrollTop()];e.$container.on("mousewheel.disablescroll DOMMouseScroll.disablescroll touchmove.disablescroll",e._handleWheel);e.$container.on("scroll.disablescroll",function(){e._handleScrollbar.call(e)});e.opts.handleKeys&&e.$document.on("keydown.disablescroll",function(t){e._handleKeydown.call(e,t)})};n.undo=function(){var e=this;e.$container.off(".disablescroll");e.opts.handleKeys&&e.$document.off(".disablescroll")};n._handleWheel=function(e){e.preventDefault()};n._handleScrollbar=function(){this.$container.scrollLeft(this.lockToScrollPos[0]);this.$container.scrollTop(this.lockToScrollPos[1])};n._handleKeydown=function(e){for(var t=0;t<this.opts.scrollEventKeys.length;t++)if(e.keyCode===this.opts.scrollEventKeys[t]){e.preventDefault();return}};e.fn.disablescroll=function(e){!t&&(typeof e=="object"||!e)?t=new r(this,e):t&&t[e]&&t[e].call(t)};window.UserScrollDisabler=r})(jQuery);


var $nonScrollable = $("#non-scrollable")

$nonScrollable.disablescroll();

$("button").on("click", function() {
    $nonScrollable.disablescroll("undo");
});

实例：http://jsfiddle.net/5s01jg4s/

3. 自定义用法，简单的使用 （$left_column 和 $right_column 为页面左右栏）：

$left_column.hover(function(){$right_column.bind("mousewheel", function(e) { e.preventDefault(); return false; });},function(){$right_column.unbind("mousewheel");});
$right_column.hover(function(){$left_column.bind("mousewheel", function(e) { e.preventDefault(); return false; });},function(){$left_column.unbind("mousewheel");});