jQuery mousewheel插件:如何在每次滚动时仅触发一个功能 [英] jquery mousewheel plugin: how to fire only one function every scroll

问题描述

我使用的是moushweel插件，因为我希望我的用户每次向上或向下滚动时都触发一个动作，但是我不希望多次触发(如果您使用的是Apple Magic Mouse鼠标，那就更糟糕了，因为它太敏感了)

i'm using a moushweel plugin because i want my user to fire an action everytime it scroll up or down, but i dont want to have multiples fires (if you have a apple magic Mouse it is even worse because is too sensitive)

关于如何预防的任何想法?

any idea on how to prevent it?

这是代码

jQuery(function($) {
    $('div.mousewheel_example')
        .bind('mousewheel', function(event, delta) {
            var dir = delta > 0 ? 'Up' : 'Down',
                vel = Math.abs(delta);
            $(this).text(dir + ' at a velocity of ' + vel);
            return false;
        });
});

这是插件页面 http://brandonaaron.net/code/mousewheel/demos

推荐答案

您可以尝试使用 window.setTimeout .也许是通过拉出嵌套函数并使用带有计时器的代理函数.示例:

You could try playing with window.setTimeout. Maybe by pulling out your nested function and using something a proxy function with a timer. Example:

var timer; 

function proxyFunction(){
  clearTimeout(timer);
  timer = setTimeout("mouseWheelAction", 1);
}

这不会停止事件触发，但是会在每次事件触发时停止运行您的函数.

This will not stop the event firing but it will stop your function from running everytime the event fires.

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