// ==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 2015.6.5.1
// @include *
// @grant GM_addStyle
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_listValues
// @grant GM_deleteValue
// @supportURL http://www.burningall.com
// @contributionURL [email protected]|alipay.com
// @namespace https://greasyfork.org/zh-CN/users/3400-axetroy
// ==/UserScript==
(function(){
function checkList(){
if( GM_getValue(window.top.location.host,'返回空字符串')==window.top.location.host ){//如果该页面在黑名单中，则不执行
console.log('该域名在黑名单中')
return true;
};
};
var d1=new Date().getTime()
//================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 $(id) {return document.getElementById(id);}
function getStyle(obj, attr) {return obj.currentStyle ? obj.currentStyle[attr] : getComputedStyle(obj)[attr];}
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;\
right:30px;\
z-index:9999999;\
}\
\
#scrollMars-troy>div>div{\
width:40px !important;\
height:40px !important;\
text-align:center !important;\
padding:5px !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:40px !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;\
index:9999999999 !important;\
}\
#setting-troy>div{\
margin: 20px !important;\
}\
#setting-troy>div input{\
color:#fff !important;\
background:#303030 !important;\
padding:5px !important;\
}\
'
GM_addStyle(cssText);
//================主要代码区============
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);
obj.timerScroll=setInterval(function(){
var position;
var speed = (getSize('scrollTop') / 5) + 10;
if(dir>0){//往上滚动
position = getSize('scrollTop') - speed;
if (position <= 0) {//如果滚到顶部
document.body.scrollTop = document.documentElement.scrollTop = 0;
clearInterval(obj.timerScroll);
obj.timerScroll = null;
}
}else{//往下滚动
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);
obj.timerScroll = null;
}
}
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='mars-point'></div><div><div id='goTop-troy' title='返回顶部'></div><div id='goBtn-troy' title='去到底部'></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() {moveMars(mars,"mouseover")});
addEvent($("mars-point"), "mouseout",function() {moveMars(mars,"mouseout")});
addEvent(mars, "mouseover",function() {moveMars(mars,"mouseover")});
addEvent(window, "resize",function() {$('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
};
};
//================执行区============
addEvent(window.top,"load",function(){
createBtn();
var d2=new Date().getTime();
console.log('GoTop-GoBtm脚本加载耗时：'+(d2-d1)+'ms');
});
addEvent(window.top, "resize",function(){createBtn()});
addEvent(document,'keydown',function(e){//快捷键设置
e=e || window.top.event;
if(e.ctrlKey && e.keyCode==38){//ctrl+↑
scroll($('scrollMars-troy'),1)
}else if(e.ctrlKey && e.keyCode==40){//ctrl+↓
scroll($('scrollMars-troy'),-1)
}else if(e.ctrlKey && e.keyCode==113){//ctrl+F2
var host=window.top.location.host;
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' /><br/>\
<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'>\
</div>\
</div>\
"
window.top.document.documentElement.appendChild(setting);
setting.innerHTML=inner;
addEvent($('quiet'),'click',function(){//退出
setting.remove(setting);
});
addEvent($('clear'),'click',function(){//移出黑名单
GM_deleteValue($('blackList').value);
alert( GM_getValue($('blackList').value,'移除成功') );
});
addEvent($('clearall'),'click',function(){
for(var i=0;i<GM_listValues().length;i++){
console.log('黑名单：'+GM_listValues()[i])
GM_deleteValue( GM_listValues()[i] )
};
alert('清空完毕')
})
addEvent($('showlist'),'click',function(){//显示黑名单
for(var i=0;i<GM_listValues().length;i++){
//console.log( '黑名单：'+GM_listValues()[i] );
var list=document.createElement('li');
list.innerHTML=GM_listValues()[i];
document.querySelector('#setting-pan-troy>div').appendChild(list);
}
});
$('blackList').value=host;
addEvent($('saveSetting'),'click',function(){//保存
var reg=/^[0-9a-z]+\.{0,1}[0-9a-z]+\.{1}[a-z]+$/ig
if(reg.test(host)==false){//检查输入的域名是否符合规范
alert($('blackList').value+'域名格式不正确'+'\n比如：tieba.baidu.com或www.baidu.com')
return;
}
if($('blackList').value!=''){//如果有填入黑名单列表
if( GM_getValue($('blackList').value,'不存在')!=$('blackList').value ){//不在黑名单中
GM_setValue($('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('请输入黑名单');
return;
}
//setting.remove(setting);
})
}
})
})()
