// ==UserScript==
// @name         lazyScroller
// @version      1.0
// @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        *://*/*
// End list
// ==/UserScript==
this.$ = this.jQuery = jQuery.noConflict(true);
// Do not run on frames or iframes
if (window.top !== window.self) {
return;
}
red = "#f84848"; green = "#7abf16"; blue = "#3e68b3";
color = blue;
transparent = 0.5;
distance = $(window).height()-50;
duration = 250;
wait = 500;
pause = 1000;
var repeat;
direct = "lazySleep";
lazyScroller = '<div id="lazyScroller"><div class="lazyButton" id="lazyUp">↑</div><div class="lazyButton" id="lazyDown">↓</div></div>';
$("body").append(lazyScroller);
$("#lazyScroller").css({"cursor":"default", "position":"fixed", "top":"-100px", "left":"-100px", "margin":"10px", "z-index":"999"});
$(".lazyButton").css({"margin":"2px", "width":"20px", "height":"20px", "font-family":"calibri", "font-size":"12px", "line-height":"20px", "text-align":"center", "background":color, "color":"#FFFFFF"});
$(".lazyButton").fadeTo(0, transparent);
$(window).mousemove(function(e) {
if (Math.abs(parseInt($("#lazyScroller").css("left"))-e.clientX)>50 || Math.abs(parseInt($("#lazyScroller").css("top"))-e.clientY)>100) {
$("#lazyScroller").css({"left":e.clientX, "top":e.clientY, "display":"none"});
} else {
$("#lazyScroller").slideDown();
}
});
$(window).scroll(function() {
if ($(window).scrollTop() === 0) {
$("#lazyUp").html("→");
} else if ($(window).scrollTop() === ($(document).height()-$(window).height())) {
$("#lazyDown").html("←");
} else {
$("#lazyUp").html("↑");
$("#lazyDown").html("↓");
}
});
$("#lazyScroller .lazyButton").mouseover(function() {
direct = $(this).attr("id");
$(this).fadeTo(500, 1);
repeat = setTimeout(function() {go();},wait);
});
$("#lazyScroller .lazyButton").mouseout(function() {
direct = "lazySleep";
$(this).fadeTo(500, transparent);
clearTimeout(repeat);
});
$("#lazyScroller #lazyUp").click(function() {
if ($(window).scrollTop() === 0) {
direct = "lazyNext";
} else {
direct = "lazyTop";
}
go();
});
$("#lazyScroller #lazyDown").click(function() {
if ($(window).scrollTop() === ($(document).height()-$(window).height())) {
direct = "lazyBack";
} else {
direct = "lazyBottom";
}
go();
});
function go()
{
if (direct === "lazyUp") {
$("html, body").animate({scrollTop: ($(window).scrollTop()-distance)}, duration);
repeat = setTimeout(function() {go();},duration+pause);
} else if (direct === "lazyDown") {
$("html, body").animate({scrollTop: ($(window).scrollTop()+distance)}, duration);
repeat = setTimeout(function() {go();},duration+pause);
} else if (direct === "lazyTop") {
$("html, body").animate({scrollTop: 0},duration);
} else if (direct === "lazyBottom") {
$("html, body").animate({scrollTop: ($(document).height()-$(window).height())},duration);
} else if (direct === "lazyNext") {
history.go(+1);
} else if (direct === "lazyBack") {
history.go(-1);
}
}