lazyScroller (beta)

Keep your hand free from scroll button.
当前为 2015-01-06 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         lazyScroller (beta)
// @version      0.2
// @description  Keep your hand free from scroll button.
// @namespace    idmresettrial
// @author       idmresettrial
// @run-at       document-end
// @grant        none
 
// @require     http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js
 
// Website list
 
// @match        *://*.vozforums.com/*
 
// End list
 
 
// ==/UserScript==
 
wait = 1000;
distance = $(window).height()-20;
duration = 300;
pause = 5000;
var repeat;
direct = "out";
 
 
lazyScroller = '<div id="lazyScroller"><div class="lazyButton" id="lazyUp">↑</div><div class="lazyButton" id="lazyDown">↓</div></div>';
 
$("body").append(lazyScroller);
$("#lazyScroller").attr("style","position:fixed; top:0px; left:0px; margin:10px; z-index:999;");
$(".lazyButton").attr("style","margin:0px; width:20px; height:20px; font-size:10px; color:#fff;line-height:20px;text-align:center;background:rgba(248, 72, 72, 0.5)");
 
$(document).on("mousemove",function(e) {
    if (Math.abs(parseInt($("#lazyScroller").css("left"))-e.clientX)>50 || Math.abs(parseInt($("#lazyScroller").css("top"))-e.clientY)>100) {
        $("#lazyScroller").css({"left": e.clientX, "top": e.clientY});
    }
});
 
 
$("#lazyScroller .lazyButton").mouseover(function() {
    direct = $(this).attr("id");
    setTimeout(function() {go();},wait);
    $(this).css({"background": "#f84848"});
});
 
$("#lazyScroller .lazyButton").mouseout(function() {
    direct = "out";
    clearTimeout(repeat);
    $(this).css({"background": "rgba(248, 72, 72, 0.4)"});
});
 
$("#lazyScroller #lazyUp").click(function() {
    direct = "top";
    $("body").scrollTop(0);
});
 
$("#lazyScroller #lazyDown").click(function() {
    direct = "back";
    history.go(-1);
});
 
 
function go()
{
    if (direct === "lazyUp") {
        $("body").animate({scrollTop: ($("body").scrollTop()-distance)}, duration);
        repeat = setTimeout(function() {go();},duration+pause);
    } else if (direct === "lazyDown") {
        $("body").animate({scrollTop: ($("body").scrollTop()+distance)}, duration);
        repeat = setTimeout(function() {go();},duration+pause);
    } else clearTimeout(repeat);
}
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