// ==UserScript==
// @name Add button for Smooth Scroll to the top / bottom
// @author burningall
// @description 为页面添加按钮，平滑的滚动到顶部/底部
// @version 2015.7.14
// @include *
// @grant GM_addStyle
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_listValues
// @grant GM_deleteValue
// @run-at document-start
// @compatible chrome 完美支持
// @compatible firefox 完美支持
// @license The MIT License (MIT); http://opensource.org/licenses/MIT
// @supportURL http://www.burningall.com
// @contributionURL troy450409405@gmail.com|alipay.com
// @namespace https://greasyfork.org/zh-CN/users/3400-axetroy
// ==/UserScript==
//========快捷键列表=======
//【Ctrl+F2】>>>>>调出控制面板
//【Ctrl+Alt】>>>>呼出按钮
//【alt+1】>>>>>>>向上滚动
//【alt+2】>>>>>>>向下滚动
//【Esc】>>>>>>>>>退出控制面板
function checkList() {
if (GM_getValue(window.top.location.host, '不在黑名单中') == window.top.location.host) { //如果该页面在黑名单中，则不执行
return true;
};
};
//================公共函数区============
function addEvent(obj, event, fn) {
return obj.addEventListener ? obj.addEventListener(event, fn, false) : obj.attachEventListener("on" + event, fn);
};
function getSize(obj) {
return document.documentElement[obj] != 0 ? document.documentElement[obj] : document.body[obj];
}
function hasScroll() {
return getSize('scrollHeight') > getSize('clientHeight') ? true : false;
};
function getStyle(obj, attr) {
return obj.currentStyle ? obj.currentStyle[attr] : getComputedStyle(obj)[attr];
}
function $(id) {
return document.getElementById(id);
}
function doMove(obj, attr, dir, target, endFn) {
dir = parseInt(getStyle(obj, attr)) < target ? dir : -dir;
clearInterval(obj.timer);
obj.timer = setInterval(function() {
var speed = parseInt(getStyle(obj, attr)) + dir;
if (speed > target && dir > 0 || speed < target && dir < 0) {
speed = target;
};
obj.style[attr] = speed + "px";
if (speed == target) {
clearInterval(obj.timer);
endFn && endFn();
};
},
30);
};
//================样式区============
var cssText = '\
#scrollMars-troy{\
position:fixed !important;\
right:30px;\
z-index:9999999 !important;\
}\
\
.sroll-btn-troy{\
width:50px !important;\
height:50px !important;\
text-align:center !important;\
background:#303030 !important;\
color:#fff !important;\
display:block !important;\
opacity:0.8 !important;\
fitter:alpha(opacity:80) !important;\
cursor:pointer !important;\
border-radius:50% !important;\
box-shadow:2px 2px 40px 2px #303030 !important;\
line-height:50px !important;\
font-size:35px !important;\
font-style:inherit !important;\
font-weight:bold !important;\
font-family:"宋体" !important;\
}\
#scrollMars-troy>div>div:hover{\
background:#FF0000 !important;\
}\
#mars-point{\
width:100px !important;\
height:100px !important;\
position:absolute !important;\
top:0 !important;\
left:-40px !important;\
}\
#setting-troy{\
width: 300px !important;\
height: auto !important;\
border: 2px solid #303030 !important;\
position: fixed !important;\
top: 200px !important;\
left: 33% !important;\
color: #fff !important;\
background: #303030 !important;\
z-index:9999999999 !important;\
}\
#setting-troy>div{\
margin: 20px !important;\
}\
#setting-troy>div input{\
color:#fff !important;\
background:#303030 !important;\
padding:5px !important;\
margin:5px !important;\
}\
#percent{\
position:absolute !important;\
top:42px !important;\
left:-20px;\
color:#147474 !important;\
font-family:"微软雅黑" !important;\
font-size:16px !important;\
line-height:16px !important;\
}\
'
GM_addStyle(cssText);
//================主要代码区============
GM_getValue("turn") ? GM_setValue("turn", true) : GM_setValue("turn", GM_getValue("turn"));
function readmode(speed, inteval, endFn) {
if (!$('percent') || GM_getValue("turn") == false || createBtn() == false) {
return;
}
clearInterval(document.readMode);
document.readMode = setInterval(function() {
var position = getSize('scrollTop') + speed;
document.body.scrollTop = document.documentElement.scrollTop = position;
clearTimeout(document.showPercent);
var precent = parseInt(getSize('scrollTop') / (getSize('scrollHeight') - getSize('clientHeight')) * 100);
$('percent').style.display = "block";
$('percent').innerHTML = precent + '%';
if (position + getSize('clientHeight') >= getSize('scrollHeight')) { //如果滚到底部
clearInterval(document.readMode);
$('percent').style.display = "none";
}
}, inteval)
GM_setValue("turn", true);
}
function moveMars(obj, index) {
if (index == 'mouseout') {
clearTimeout(obj.timerHover);
obj.timerHover = setTimeout(function() {
doMove(obj, "right", 5, -30);
},
3000); //鼠标离开后，3s隐藏到边栏
} else if (index == 'mouseover') {
clearTimeout(obj.timerHover);
doMove(obj, "right", 5, 30);
}
}
function scroll(obj, dir) { //obj随意，dir>0往上滚，dir<0往下滚
clearInterval(obj.timerScroll);
clearInterval(document.readMode);
obj.timerScroll = setInterval(function() {
var position;
if (dir > 0) { //往上滚动
var speed = (getSize('scrollTop') / 10) + 10;
position = getSize('scrollTop') - speed;
if (position <= 0) { //如果滚到顶部
document.body.scrollTop = document.documentElement.scrollTop = 0;
clearInterval(obj.timerScroll);
}
} else { //往下滚动
var speed = ((getSize('scrollHeight') - getSize('scrollTop')) / 20) + 10;
position = getSize('scrollTop') + speed;
if (position + getSize('clientHeight') >= getSize('scrollHeight')) { //如果滚到底部
document.body.scrollTop = document.documentElement.scrollTop = getSize('scrollHeight');
clearInterval(obj.timerScroll);
}
}
document.body.scrollTop = document.documentElement.scrollTop = position;
}, 20)
}
function createBtn() {
if (checkList() == true) {
return false;
}
var jugg = $("scrollMars-troy");
if (jugg && hasScroll() == true) { //如果有滚动条,并且存在滚动按钮
$('scrollMars-troy').style.top = (getSize('clientHeight') / 3) + 'px'; //调整按钮位置
} else if (jugg && hasScroll() == false) { //如果没有滚动条，但是有按钮
jugg.remove(jugg); //删除按钮
};
if (hasScroll() == false && !jugg) { //如果没有滚动条,并且没有按钮
return false;
} else if (hasScroll() == true && !jugg) { //如果有滚动条，并且没有按钮
var mars = document.createElement('div');
mars.id = "scrollMars-troy";
window.top.document.documentElement.appendChild(mars);
mars.innerHTML = "\
<div id='percent'></div>\
<div id='mars-point'></div>\
<div>\
<div id='goTop-troy' title='返回顶部' class='sroll-btn-troy'></div>\
<div id='goBtn-troy' title='去到底部' class='sroll-btn-troy'></div>\
</div>\
";
$('scrollMars-troy').style.top = (getSize('clientHeight') / 3) + 'px';
$("goTop-troy").innerHTML = "↑";
$("goBtn-troy").innerHTML = "↓";
addEvent($("goTop-troy"), "click", function() {
scroll(mars, 1)
});
addEvent($("goBtn-troy"), "click", function() {
scroll(mars, -1)
});
addEvent($("mars-point"), "mouseover", function(e) {
moveMars(mars, "mouseover");
});
addEvent($("mars-point"), "mouseout", function(e) {
moveMars(mars, "mouseout");
});
addEvent(mars, "mouseover", function() {
moveMars(mars, "mouseover")
});
addEvent(window, "resize", function() {
$('scrollMars-troy').style.top = (getSize('clientHeight') / 3) + 'px';
});
moveMars(mars, "mouseout"); //页面加载完成，默认3s后隐藏到边栏
return true;
};
};
//================执行区============
addEvent(window, 'mousewheel', function() { //滚动则停止，兼容chrome/ie/opera
createBtn() && clearInterval($('scrollMars-troy').timerScroll);
})
addEvent(window, 'DOMMouseScroll', function() { //滚动则停止，兼容firefox
createBtn() && clearInterval($('scrollMars-troy').timerScroll);
})
addEvent(document, 'dblclick', function(event) { //双击进入阅读模式
var type = /input|form|textarea|img|a|li|object|video|audio/ig;
event = event || window.event;
var macType = type.test(event.target.nodeName);
if (macType) {
return;
};
readmode(1, 20);
})
addEvent(document, 'click', function() { //单击退出阅读模式
if ($('percent')) {
clearInterval(document.readMode);
$('percent').style.display = "none";
}
})
addEvent(window.top, "resize", function() { //页面大小改变，初始化按钮
createBtn();
});
addEvent(document, 'DOMContentLoaded', function() {
createBtn();
})
//================快捷键区============
addEvent(window, 'keydown', function(event) {
event = event || window.event;
if (event.altKey && event.keyCode == 49) { //alt+1，向上滚动
scroll($('scrollMars-troy'), 1)
} else if (event.altKey && event.keyCode == 50) { //alt+2，向下滚动
scroll($('scrollMars-troy'), -1)
} else if (event.ctrlKey && event.altKey) { //ctrl+alt,调出按钮
moveMars($('scrollMars-troy'), "mouseover");
setTimeout(function() {
moveMars($('scrollMars-troy'), "mouseout");
}, 3000);
} else if (event.keyCode == 27) { //Esc退出控制面板
var setting = $('setting-troy');
setting && setting.remove(setting);
} else if (event.ctrlKey && event.keyCode == 113) { //ctrl+F2，调处控制面板
$('setting-troy') && setting.remove(setting);
var setting = document.createElement('div');
setting.id = 'setting-troy';
var inner = "\
<div id='setting-pan-troy'>\
<div>\
控制面板:Ctrl+F2<br />\
添加黑名单域名：<input type='text' id='blackList' placeholder='www.baidu.com' /><br />\
<input type='button' value='添加黑名单' id='saveSetting' />\
<input type='button' id='quiet' value='退出面板(Esc)' /><br/><hr />\
<input type='button' id='clear' value='移除黑名单'>\
<input type='button' id='showlist' value='显示黑名单'>\
<input type='button' id='clearall' value='清空黑名单'>\
<input type='button' id='readmodebtn' value='双击滚动开关'>\
</div>\
</div>\
"
window.top.document.documentElement.appendChild(setting);
setting.innerHTML = inner;
//var domian=/^[0-9-a-z]{0,}\.{0,1}[0-9-a-z]+\.{0,1}[a-z]{0,}\.{1}[a-z]+$/ig;//用于验证域名是否符合规范
var domian = /^[0-9a-zA-Z]+[0-9a-zA-Z\.-]*\.[a-zA-Z]{2,4}$/;
var host = window.top.location.host;
$('blackList').value = host;
//GM_setValue("turn",true);//第一次安装脚本，默认开启双击滚动
addEvent($('quiet'), 'click', function() { //退出
setting.remove(setting);
});
addEvent($('clear'), 'click', function() { //移出黑名单
alert(GM_getValue($('blackList').value, '未获取') + "：移除成功");
GM_deleteValue($('blackList').value);
});
addEvent($('clearall'), 'click', function() { //清空黑名单
for (var i = 0; i < GM_listValues().length; i++) {
if (domian.test(GM_listValues()[i]) == true) {
console.log('黑名单：' + GM_listValues()[i] + '被删除');
GM_deleteValue(GM_listValues()[i]);
}
}; //for
alert('清空完毕,\nBug:可能需要多点几次，才能清空');
})
addEvent($('showlist'), 'click', function() { //显示黑名单
if (GM_listValues().length <= 1) {
alert('空的黑名单');
return;
} else {
for (var i = 0; i < GM_listValues().length; i++) {
if (domian.test(GM_listValues()[i]) == true) {
var list = document.createElement('li');
list.innerHTML = GM_listValues()[i];
document.querySelector('#setting-pan-troy>div').appendChild(list);
}
} //for
}
});
addEvent($('readmodebtn'), 'click', function() { //禁用双击滚动
console.log("当前状态：" + GM_getValue("turn"), "空的变量");
if (GM_getValue("turn") == true) {
GM_setValue("turn", false);
alert('开关状态：' + GM_getValue("turn") + '，禁用成功');
return;
} else if (GM_getValue("turn") == false) {
GM_setValue("turn", true);
alert('开关状态：' + GM_getValue("turn") + '，开启成功');
return;
}
})
addEvent($('saveSetting'), 'click', function() { //保存
if (domian.test($('blackList').value) == false) { //检查输入的域名是否符合规范
alert($('blackList').value + '域名格式不正确' + '\n比如：tieba.baidu.com或www.baidu.com')
return;
} else if ($('blackList').value != '') { //如果有填入黑名单列表
if (GM_getValue($('blackList').value, '不存在这个黑名单') != $('blackList').value) { //不在黑名单中
GM_setValue($('blackList').value, $('blackList').value);
alert('禁用：' + $('blackList').value + '成功');
} else {
alert('该域名已在黑名单中');
}
} else { //没有填入黑名单
alert('请输入域名');
return;
}
})
}
}) //监听keydown，快捷键
