Picviewer CE+

NLF 的围观图修改版，增加高清原图查找显示（在线看图工具，支持图片翻转、旋转、缩放、弹出大图、批量保存、查找原图）
当前为 2017-03-04 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name           Picviewer CE+
// @name:zh-CN         Picviewer CE+
// @name:zh-TW         Picviewer CE+
// @author         NLF && ywzhaiqi && hoothin
// @description    Powerful picture viewing tool online, which can popup/scale/rotate/batch save pictures or find the HD original picture automatically
// @description:zh-CN    NLF 的围观图修改版，增加高清原图查找显示（在线看图工具，支持图片翻转、旋转、缩放、弹出大图、批量保存、查找原图）
// @description:zh-TW    NLF 的圍觀圖修改版，增加高清原圖查詢顯示（線上看圖工具，支援圖片翻轉、旋轉、縮放、彈出大圖、批量儲存、查詢原圖）
// @version        2017.3.3.1
// @created        2011-6-15
// @namespace      http://userscripts.org/users/NLF
// @homepage       http://hoothin.com
// @connect       www.google.com
// @connect       www.google.com.hk
// @connect       www.google.co.jp
// @connect       ipv4.google.com
// @connect       image.baidu.com
// @connect       www.tineye.com
// @grant          GM_getValue
// @grant          GM_setValue
// @grant          GM_addStyle
// @grant          GM_openInTab
// @grant          GM_setClipboard
// @grant          GM_xmlhttpRequest
// @grant          GM_registerMenuCommand
// @grant          unsafeWindow
// @require        https://greasyfork.org/scripts/6158-gm-config-cn/code/GM_config%20CN.js?version=23710
// @contributionURL https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=rixixi@sina.com&item_name=Greasy+Fork+donation
// @contributionAmount 1
// @run-at         document-end
 
// @include       http://*
// @include       https://*
// @exclude       http://www.toodledo.com/tasks/*
// @exclude       http*://maps.google.com*/*
// @exclude       *://www.google.*/_/chrome/newtab*
// ==/UserScript==
 
;(function(topObject,window,document,unsafeWindow){
    'use strict';
 
    var prefs;
    function init(topObject,window,document,arrayFn,envir,storage,unsafeWindow){
        // 默认设置，请到设置界面修改
        prefs={
            floatBar:{//浮动工具栏相关设置.
                butonOrder:['actual','gallery','magnifier','current','search'],//按钮排列顺序'actual'(实际的图片),'current'(当前显示的图片),'magnifier'(放大镜观察),'gallery'(图集)
                showDelay:366,//浮动工具栏显示延时.单位(毫秒)
                hideDelay:566,//浮动工具栏隐藏延时.单位(毫秒)
                position:'top left',// 取值为: 'top left'(图片左上角) 或者 'top right'(图片右上角) 'bottom right'(图片右下角) 'bottom left'(图片左下角);
                offset:{//浮动工具栏偏移.单位(像素)
                    x:-15,//x轴偏移(正值,向右偏移,负值向左)
                    y:-15,//y轴偏移(正值,向下,负值向上)
                },
                forceShow:{//在没有被缩放的图片上,但是大小超过下面设定的尺寸时,强制显示浮动框.(以便进行旋转,放大,翻转等等操作)..
                    enabled:true,//启用强制显示.
                    size:{//图片尺寸.单位(像素);
                        w:166,
                        h:166,
                    },
                },
                minSizeLimit:{//就算是图片被缩放了(看到的图片被设定了width或者height限定了大小,这种情况下),如果没有被缩放的原图片小于设定值,那么也不显示浮动工具栏.
                    w:100,
                    h:100,
                },
 
                // 按键，感觉用不太到，默认禁用
                keys: {
                    enable: false,
                    actual: 'a',  //  当出现悬浮条时按下 `a` 打开原图
                    search: 's',
                    current: 'c',
                    magnifier: 'm',
                    gallery: 'g',
                },
            },
 
            magnifier:{//放大镜的设置.
                radius: 77,//默认半径.单位(像素).
                wheelZoom:{//滚轮缩放.
                    enabled:true,
                    pauseFirst:true,//需要暂停(单击暂停)后,才能缩放.(推荐,否则因为放大镜会跟着鼠标,如果放大镜过大,那么会影响滚动.)..
                    range:[0.4,0.5,0.6,0.7,0.8,0.9,1,1.1,1.2,1.3,1.4,1.5,1.7,1.9,2,2.5,3.0,4.0],//缩放的范围
                },
            },
 
            gallery:{//图库相关设定
                fitToScreen:true,//图片适应屏幕(适应方式为contain，非cover).
                sidebarPosition: 'bottom',//'top' 'right' 'bottom' 'left'  四个可能值
                sidebarSize: 120,//侧栏的高（如果是水平放置）或者宽（如果是垂直放置）
                sidebarToggle: true,  // 是否显示隐藏按钮
                transition:true,//大图片区的动画。
                preload:true,//对附近的图片进行预读。
                max:5,//最多预读多少张（前后各多少张）
 
                zoomresized: 25,  // 图片尺寸最少相差比例，单位：%
                scaleSmallSize: 200,  // 图库的新类别，缩放的图片，尺寸的高或宽都小于该值
 
                scrollEndAndLoad: false, // 滚动主窗口到最底部，然后自动重载库的图片。还有bug，有待进一步测试
                scrollEndAndLoad_num: 3,  // 最后几张图片执行
 
                autoZoom: true,  // 如果有放大，则把图片及 sidebar 部分的缩放改回 100%，增大可视面积（仅在 chrome 下有效）
                descriptionLength: 32,  // 注释的最大宽度
            },
 
            imgWindow:{// 图片窗相关设置
                fitToScreen: false,//适应屏幕,并且水平垂直居中(适应方式为contain，非cover).
                syncSelectedTool:true,//同步当前选择的工具，如果开了多个图片窗口，其中修改一个会反映到其他的上面。
                defaultTool:'hand',//"hand","rotate","zoom";打开窗口的时候默认选择的工具
                close:{//关闭的方式
                    escKey:true,//按esc键
                    dblClickImgWindow: true,//双击图片窗口
                    clickOutside:'', // 点击图片外部关闭。值为''|'click'|'dblclick'；无或点击或双击
                },
                overlayer:{// 覆盖层.
                    shown:false,//显示
                    color:'rgba(0,0,0,0.8)',//颜色和不透明度设置.
                },
                shiftRotateStep:15,// 旋转的时候，按住shift键时,旋转的步进.单位:度.
                zoom:{//滚轮缩放
                    range:[0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1,1.1,1.2,1.3,1.4,1.5,1.7,1.9,2,2.5,3.0,4.0],//缩放比例.(不要出现负数,谢谢-_-!~)
                    mouseWheelZoom:true,//是否允许使用滚轮缩放。
                },
            },
 
            //等图片完全载入后,才开始执行弹出,放大等等操作,
            //按住ctrl键的时候,可以临时执行和这个设定相反的设定.
            waitImgLoad: false,
 
            //框架里面的图片在顶层窗口展示出来，但是当frame与顶层窗口domain不一样的时候，可能导致图片被反盗链拦截，
            //按住shift键，可以临时执行和这个设定相反的设定
            framesPicOpenInTopWindow: true,
 
            // lowLevel: true,  // 如果有多个图片，优先选择低一级的
 
            debug: false,
            firstEngine:"Tineye"
        };
 
        //各网站高级规则;
        var siteInfo=[
            {name: "google 图片搜索",
             //网址例子.(方便测试.查看.之类的)
             siteExample:"http://www.google.com.hk/search?q=firefox&tbm=isch",
             //是否启用
             enabled:true,
             //站点正则
             url:/https?:\/\/www.google(\.\w{1,3}){1,3}\/search\?.*&tbm=isch/,
             //鼠标左键点击直接打开..（这个只是当高级规则的getImage()返回图片的时候生效）
             // 无效？只有少数情况下有作用？
             clikToOpen:{
                 enabled:true,
                 preventDefault:true,//是否尝试阻止点击的默认行为（比如如果是你点的是一个链接，默认行为是打开这个链接，如果是true，js会尝试阻止链接的打开(如果想临时打开这个链接，请使用右键的打开命令)）
                 type:'actual',//默认的打开方式: 'actual'(弹出,原始图片) 'magnifier'(放大镜) 'current'(弹出,当前图片)
             },
             //获取图片实际地址的处理函数,
             //this 为当前鼠标悬浮图片的引用,
             //第一个参数和this相同，也是当前鼠标悬浮图片的引用,
             //第二个参数为包裹当前图片的第一个a元素(可能不存在).
             getImage:function(img,a){
                 if(!a)return;
                 if (a.href.match(/imgurl=(.*?\.\w{1,5})&/i)) {
                     return decodeURIComponent(RegExp.$1);
                 }
             },
 
             // ====== 我新增的 ======
             // 自定义样式
             css: '',
             // 排除的图片正则
             // exclude: /weixin_code\.png$/i,
            },
            {name: "Bing 图片搜索",
             siteExample:"http://cn.bing.com/images/search?q=%E7%BE%8E%E5%A5%B3",
             enabled:true,
             url: /^https?:\/\/[^.]*\.bing\.com\/images\//i,
             getImage:function(img, a){
                 if (!a) return;
                 var oldsrc=this.src;
                 var $ = /,imgurl:"([^"]+)/.exec(a.getAttribute('m'));
                 var newsrc= $ ? $[1] : '';
                 if(newsrc!=oldsrc)return newsrc;
             }
            },
            {name:"百度贴吧",
             enabled:true,
             url:/^https?:\/\/tieba\.baidu\.[^\/]+\//i,
             getImage:function(img){
                 var src=img.src;
                 var reg=/^(http:\/\/imgsrc\.baidu\.com\/forum\/)ab(pic\/item\/[\w.]+)/i ;
                 var portrait=/himg.baidu.com\/sys\/portrait/;
                 var result=src.match(reg);
                 //帖子列表页面
                 if(portrait.test(src)){
                     return src.replace(/himg.baidu.com\/sys\/portrait/,"himg.baidu.com/sys/portraitl");
                 }else if(result){//小图的时候
                     return result[1]+result[2];
                 }else{//小图点击之后的较大图，或者帖子内容页面的图片。
                     var prefix = 'http://imgsrc.baidu.com/forum/pic/item/';
                     var reg2 = /\/sign=\w+\/([\w.]+)$/;
                     var sign = src.match(reg2);
                     return  sign ? prefix + sign[1] : null;
                 };
             },
            },
            // 百度自身的全屏查看方式更加好，跟这个脚本的库查看类似。
            {name: "百度图片搜索",
             siteExample: "http://image.baidu.com/i?ie=utf-8&word=%E9%A3%8E%E6%99%AF&oq=%E9%A3%8E%E6%99",
             enabled: true,
             url: /^https?:\/\/image\.baidu\.com\/.*&word=/i,
             getImage: function(img, a) {
                 if (!a) return;
                 var reg = /&objurl=(http.*?\.(?:jpg|jpeg|png|gif|bmp))/i;
                 if (a.href.match(reg)) {
                     return decodeURIComponent(RegExp.$1);
                 }
             }
            },
            {name:"豆瓣",
                siteExample:"http://movie.douban.com/photos/photo/1000656155/",
                enabled: false,
                url:/^https?:\/\/[^.]*\.douban\.com/i,
                getImage:function(){
                    var oldsrc = this.src,
                        newsrc = oldsrc;
                    var pic = /\/view\/photo\/(?:photo|albumcover|albumicon|thumb)\/public\//i;
                    var movieCover = /\/view\/movie_poster_cover\/[si]pst\/public\//i;
                    var bookCover = /\/view\/ark_article_cover\/cut\/public\//i;
                    var spic = /(img\d+.douban.com)\/[sm]pic\//i
 
                    // 这个网址大图会出错
                    // http://movie.douban.com/subject/25708579/discussion/58950206/
                    if(/movie\.douban\.com\/subject\/\d+\/discussion/.test(location.href)){
                    } else if (pic.test(oldsrc)) {
                        newsrc = oldsrc.replace(pic, '/view/photo/raw/public/');
                    } else if (movieCover.test(oldsrc)) {
                        newsrc = oldsrc.replace(movieCover, '/view/photo/raw/public/');
                    } else if (bookCover.test(oldsrc)) {
                        newsrc = oldsrc.replace(bookCover, '/view/ark_article_cover/retina/public/');
                    } else if (spic.test(oldsrc)) {
                        newsrc = oldsrc.replace(spic, '$1/lpic/');
                    }
 
                    return newsrc == oldsrc ? null : newsrc;
                }
            },
            {name:"新浪微博",
             siteExample:"http://weibo.com/pub/?source=toptray",
             enabled:true,
             url:/^https?:\/\/(?:[^.]+\.)*weibo\.com/i,
             getImage:function(img){
                 var oldsrc=this.src;
                 var pic=/(\.sinaimg\.cn\/)(?:bmiddle)/i;//微博内容图片.
                 var pic2=/(\.sinaimg\.cn\/)(?:square|thumbnail)/i;// 微博内容图片2.
                 var head=/(\.sinaimg\.cn\/\d+)\/50\//i;//头像.
                 var photoList=/\.sinaimg\.cn\/thumb\d+\/\w+/i//相册
                 var newsrc;
                 if(pic.test(oldsrc)){
                     newsrc=oldsrc.replace(pic,'$1large');  // large 不是每一张图片都有的
                     return newsrc==oldsrc? '' : newsrc;
                 } else if (pic2.test(oldsrc)) {
                     newsrc=oldsrc.replace(pic2,'$1mw1024');
                     return newsrc==oldsrc? '' : newsrc;
                 } else if(head.test(oldsrc)){
                     newsrc=oldsrc.replace(head,'$1/180/');
                     return newsrc==oldsrc? '' : newsrc;
                 }else if(photoList.test(oldsrc)){
                     newsrc=oldsrc.replace(/thumb\d+/,'mw690');
                     return newsrc==oldsrc? '' : newsrc;
                 };
             },
            },
            {name:"bilibili",
             enabled:true,
             url:/^https?:\/\/[^.]+\.bilibili.com/i,
             getImage:function(img){
                 var oldsrc=this.src;
                 var pic=/\d+_\d+\/|\d+_x\d+\.jpg$|@\d+w_\d+h\.webp$|_\d+x\d+\.jpg$/i;
                 var newsrc;
                 if(pic.test(oldsrc)){
                     newsrc=oldsrc.replace(pic,'');
                     return newsrc==oldsrc? '' : newsrc;
                 }
             }
            },
            {name:"腾讯微博",
             siteExample:"http://t.qq.com/p/news",
             enabled:true,
             url:/^http:\/\/[^\/]*t\.qq\.com\//i,
             getImage:function(img){
                 var pic=/(\.qpic\.cn\/mblogpic\/\w+)\/\d+/i;//图片
                 var head=/(\.qlogo\.cn\/mbloghead\/\w+)\/\d+/i;//头像.
                 var oldsrc=this.src;
                 var newsrc;
                 if(pic.test(oldsrc)){
                     newsrc=oldsrc.replace(pic,'$1/2000');
                     return newsrc==oldsrc? '' : newsrc;;
                 }else if(head.test(oldsrc)){
                     newsrc=oldsrc.replace(head,'$1/0');
                     return newsrc==oldsrc? '' : newsrc;;
                 };
             },
            },
            {name: "deviantart",
             siteExample: "http://www.deviantart.com",
             enabled:true,
             url:/^https?:\/\/[^.]*\.deviantart\.com/i,
             getImage:function(img, a){
                 var oldsrc=this.src;
                 var newsrc = a.getAttribute('data-super-img') || a.getAttribute('data-super-full-img')
                 || oldsrc.replace(/(http:\/\/[^\/]+\/fs\d+\/)200H\/(.*)/i,'$1$2');
                 return newsrc==oldsrc? '' : newsrc;
             },
            },
            {name: '花瓣网',
             enabled: true,
             url: /^https?:\/\/huaban\.com\//i,
             ext: 'previous-2',
             // ext: function(target) {
             //     if (target.className == 'cover') {
             //         return target.parentNode.querySelector('img');
             //     }
             // },
             getImage: function() {
                 var pic = /(.*img.hb.aicdn.com\/.*)_fw(?:236|320)$/i
                 if (this.src.match(pic)) {
                     return RegExp.$1 + '_fw658';
                 }
             },
             description: './../following-sibling::p[@class="description"]',
             // css: '.pin a.img .cover { display: none; }',
             exclude: /weixin_code\.png$/i,
            },
            // 其它
            {name: "wikipedia",
             enabled:true,
             url:/^https?:\/\/[^.]+.wikipedia.org\//i,
             getImage:function(){
                 var src=this.src;
                 var ret=src.replace('/thumb/','/');
                 if(src==ret)return;//非缩略图
                 return (ret.match(/(https?:\/\/.*)\/\d+px-.*/) || [])[1];
             },
            },
            {name:"沪江碎碎",
             enabled:true,
             url:/^https?:\/\/([^.]+\.)*(?:yeshj\.com|hjenglish\.com|hujiang\.com)/i,
             getImage:function(img){
                 var oldsrc=this.src;
                 var reg=/^(https?:\/\/(?:[^.]+\.)*hjfile.cn\/.+)(_(?:s|m))(\.\w+)$/i;
                 if(reg.test(oldsrc)){
                     return oldsrc.replace(reg,'$1$3');
                 };
             },
            },
            {name: '大众点评',
             siteExample: 'http://www.dianping.com/shop/17873296/photos',
             url: /^https?:\/\/www.dianping.com\/shop/i,
             getImage: function() {
                 var oldsrc = this.src,
                     newsrc;
                 var pic = /(.+?dpfile\.com\/.+)\(240c180\)\/(thumb\..+)/;
                 if (pic.test(oldsrc)) {
                     return oldsrc.replace(pic, '$1(700x700)/$2');
                 }
             }
            },
            // 视频网站
            {name: 'trakt.tv',
             url: /^http:\/\/trakt\.tv\//i,
             siteExample: 'http://trakt.tv/shows',
             getImage: function() {
                 var oldsrc = this.src;
                 if (oldsrc.match(/(.*\/images\/posters\/\d+)-(?:300|138)\.jpg\?(\d+)$/)) {
                     return RegExp.$1 + '.jpg?' + RegExp.$2;
                 }
             }
            },
            // Music
            {name: '网易云音乐',
             url: 'http://music.163.com/*',
             ext: 'previous',  // 扩展模式，检查前面一个是否为 img
             getImage: function() {
                 var oldsrc = this.src;
                 if(this.data){
                     var newsrc = this.data('src');
                     if (oldsrc != newsrc) {
                         return newsrc;
                     }
                 }
                 if (oldsrc.match(/(.*)\?param=\d+y\d+$/)) {
                     return RegExp.$1;
                 }
             }
            },
            // 美女
            {name: "美女薄情馆",  // 这个网站有限制，每天只能看多少张
             url: /^http:\/\/boqingguan\.com\//i,
             siteExample: 'http://boqingguan.com/Picture/31637',
             lazyAttr: 'data-original',  // 由于采用了延迟加载技术，所以图片可能为 loading.gif
             getImage: function(img, a) {
                 var oldsrc = this.getAttribute('data-original') || this.src;
                 if (oldsrc) {
                     var newsrc = oldsrc.replace(/![a-z\d]+$/, '');
                     return newsrc == oldsrc ? '' : newsrc;
                 }
             }
            },
            // 游戏
            {name:"178.com",
             enabled:true,
             url:/^https?:\/\/(?:\w+\.)+178\.com\//i,
             clikToOpen:{
                 enabled:true,
                 preventDefault:true,
                 type:'actual',
             },
             getImage:function(img,a){
                 if(!a)return;
                 var reg=/^https?:\/\/(?:\w+\.)+178\.com\/.+?(https?:\/\/img\d*.178.com\/[^.]+\.(?:jpg|jpeg|png|gif|bmp))/i;
                 return (a.href.match(reg) || [])[1];
             },
            },
 
            // 论坛
            {name:"极限主题社区",
             enabled:true,
             url:/^https?:\/\/bbs\.themex\.net\/.+/i,
             clikToOpen:{
                 enabled:true,
                 preventDefault:true,
                 type:'actual',
             },
             getImage:function(){
                 var reg=/^(https?:\/\/bbs\.themex\.net\/attachment\.php\?.+)&thumb=1(.+)/i;
                 var src=this.src;
                 var ret=src.replace(reg,'$1$2');
                 return ret!=src? ret : '';
             },
            },
            {name:"opera官方论坛",
             siteExample:"http://bbs.operachina.com",
             enabled:true,
             url:/^http:\/\/bbs\.operachina\.com/i,
             getImage:function(){
                 var src=this.src;
                 if(/file.php\?id=\d+$/i.test(src)){
                     return src+'&mode=view';
                 };
             },
            },
 
            // 特殊的需要修正
            {name: 'github 修正',
             url: /^https?:\/\/github\.com\//i,
             clikToOpen: {
                 enabled: true,
                 preventDefault: true,
                 type: 'actual',
             },
             getImage: function(img, a) {
                 if (a && a.href.indexOf('/blob/master/') > 0) {
                     return this.src;
                 }
             }
            },
 
            // 需要 xhr 获取的
            {name: '优美图',
             url: /http:\/\/(?:www\.)?topit\.me\//,
             getImage: function(img, a) {  // 如果有 xhr，则应该返回 xhr 的 url
                 if (a && a.href.match(/topit\.me\/item\/\d+/)) {
                     return a.href;
                 }
             },
             lazyAttr: 'data-original',  // 延迟加载技术让后面的图片是 blank.gif
             xhr: {
                 q: ['a[download]', 'a#item-tip'],
             }
            },
            {name: '半次元',
             url: /^https?:\/\/bcy\.net\//,
             getImage: function() {
                 return this.src.replace(/\/\dX\d$|\/w\d+$/,"").replace(/\/cover\//,"/post/").replace(/\/(middle|small)\.jpg/,"/big.jpg");
             }
            },
            {name: 'Steampowered',
             url: /\.steampowered\.com/,
             getImage: function() {
                 return this.src.replace(/\.\d+x\d+\.jpg/,".jpg");
             }
            },
            {name: 'Steamcommunity',
             url: /steamcommunity\.com/,
             getImage: function() {
                 return this.src.replace(/output\-quality=\d+&fit=inside\|\d+\:\d+/,"output-quality=100&fit=inside|0:0");
             }
            },
            {name: '知乎',
             url: /zhihu\.com/,
             getImage: function() {
                 return this.src.replace(/_(b|s|\d+x\d+)\./,".");
             }
            },
            {name: 'Nyaa',
             url: /nyaa\.se/,
             getImage: function() {
                 return this.src.replace(/upload\/small\//,"upload/big/");
             }
            },
            {name: "itunes",
             url: /itunes\.apple\.com/,
             getImage: function() {
                 return this.src.replace(/\d+x\d+bb\./,"1400x1400bb.");
             }
            },
            {name: "汽车之家",
             url: /\.autohome\.com\.cn/,
             getImage: function() {
                 return this.src.replace(/(\?imageView.*|\d+x\d+_\d+_)/,"");
             }
            },
            {name: "易车",
             url: /\.bitauto\.com/,
             getImage: function() {
                 return this.src.replace(/_\d+\.jpg$/i,"_12.jpg");
             }
            },
            {name: "爱卡",
             url: /\.xcar\.com\.cn/,
             getImage: function() {
                 return this.src.replace(/\-\d+x\d+\.jpg/i,"");
             }
            },
            {name: "太平洋汽车",
             url: /\.pcauto\.com\.cn/,
             getImage: function() {
                 return this.src.replace(/_\d+x\d+\.jpg$/i,".jpg");
             }
            }
        ];
 
        // 通配型规则,无视站点.
        var tprules=[
            function(img, a) { // 解决新的dz论坛的原图获取方式.
                var regs = [/(.+\/attachments?\/.+)\.thumb\.\w{2,5}$/i,/(wp-content\/uploads\/.*)\-\d+x\d+/i,/.*(?:url|src)=(https?:\/\/.*\.(?:jpg|jpeg|png|gif|bmp)).*/i];
                var oldsrc = this.src,newsrc = this.src;
                if (oldsrc){
                    for(let reg of regs){
                        if (reg.test(oldsrc)) {
                            newsrc = oldsrc.replace(reg, '$1');
                        }
                    }
                }
                if(/\.sinaimg\.cn\/mw\d+\//.test(oldsrc)){
                    newsrc=oldsrc.replace(/\/mw\d+\//,"/large/");
                }else if(/gravatar\.com\/avatar\/.*[\?&]s=/.test(oldsrc)){
                    console.log(111);
                    newsrc=oldsrc.replace(/(gravatar\.com\/avatar\/.*[\?&]s=).*/,"$1100000");
                }
                return oldsrc != newsrc ? newsrc : null;
            }
        ];
 
        var Rule = {};
 
        // 兼容 Imagus 扩展的规则，自定义部分
        Rule.Imagus = {};
 
        /**
 * 兼容 Mouseover Popup Image Viewer 脚本的规则（非完全）
 * 1、新增了特殊的替换模式：以 r; 开头。
 * 2、已去除 http:// 头，后面会加上。
 */
        Rule.MPIV = [
            // 图片
            {name: "百度图片、贴吧等",
             r: "(hiphotos|imgsrc)\\.baidu\\.com/(.+?)/.+?([0-9a-f]{40})",
             s: "r;$1.baidu.com/$2/pic/item/$3"
            },
            // {name: "百度图片2",
            //  d: "image.baidu.com",  // imgt8.bdstatic.com 类型的图片链接
            //  r: "image\\.baidu\\.com/detail/newindex\\?",
            //  q: 'img[alt="preloading"][src*="/pic/item/"]',
            //  // description: './../../following-sibling::div[@class="ext-info"]/a',
            // },
            {name: "GoogleContent",  // 来自 Imagus 扩展
             r: "^((?:(?:lh|gp|yt)\\d+\\.g(?:oogleuserconten|gph)|\\d\\.bp\\.blogspo)t\\.com/)(?:([_-](?:[\\w\\-]{11}/){4})[^/]+(/[^?#]+)?|([^=]+)).*",
             s: function($, node) {
                 return [
                     // 'http://' + $[1] + ($[4] ? $[4] + '=' : $[2]) + 's0' + ($[3] || ''),    // 原图
                     'http://' + $[1] + ($[4] ? $[4] + '=' : $[2]) + 's1024' + ($[3] || '')  // 1024 大小
                 ];
             },
            },
            {name: "pixiv（部分）",
             d: 'pixiv.net',
             r: /(pixiv.net\/img\d+\/img\/.+\/\d+)_[ms]\.(\w{2,5})$/i,
             s: 'r;$1.$2'
            },
            {name: "500px",  // 规则来自 imagus，只有一半
             d: "500px.com",
             r: "^((?:(?:pp?cdn|s\\d\\.amazonaws\\.com/photos|gp\\d+\\.wac\\.edgecastcdn\\.net/806614/photos/photos)\\.500px|djlhggipcyllo\\.cloudfront)\\.(?:net|org)/\\d+/[\\da-f]{40}/)\\d+\\.",
             s: "$12048.jpg"
            },
 
            // 常用站点
            {name: '豆瓣',
             r: "(img\\d+\\.douban\\.com/)(?:(view/)(?:photo|movie_poster_cover)/(?!large)[^/]+|(icon/u(?=\\d))|[sm](?=pic/))(.*)",
             s: function(m, node) {
                 return [
                     // 'http://' + m[1] + (m[2] ? m[2] + 'photo/raw' : ((m[3]||'') + 'l')) + m[4],
                     'http://' + m[1] + (m[2] ? m[2] + 'photo/photo' : ((m[3]||'') + 'l')) + m[4]
                 ];
             },
             note: "人人影视的豆瓣脚本需要用到"
            },
            // 购物
            {name: "淘宝",
             r: /((?:img\d\d\.taobaocdn|img(?:[^.]*\.?){1,2}?\.alicdn)\.com\/)(?:img\/|tps\/http:\/\/img\d\d+\.taobaocdn\.com\/)?((?:imgextra|bao\/uploaded)\/.+\.(?:jpe?g|png|gif|bmp))_.+\.jpg$/,
             s: "http://$1$2"
            },
            {name: "ali",
             r: /(.*\.alicdn\.com\/.*)(\.|_)\d+x\d+.*\.jpg$/,
             s: "$1.jpg"
            },
            {name: "1号店",
             r: /(.*\.yihaodianimg\.com\/.*)_\d+x\d+\.jpg$/,
             s: "$1.jpg"
            },
            {name: "京东",
             r: /(.*360buyimg\.com\/)n\d\/.+?\_(.*)/,
             s: "$1imgzone/$2"
            },
            // 电子书
            {name: "当当",
             d: "dangdang.com",
             r: /(.*ddimg.cn\/.*?)_[bw]_(\d+\.jpg$)/,
             s: "$1_e_$2"
            },
            {name: "多看阅读",
             d: "duokan.com",
             r: /(cover.read.duokan.com.*?\.jpg)!\w+$/,
             s: "$1"
            },
 
            // 视频、新闻
            // {name: "优酷电视剧",
            //  d: "youku.com",
            //  r: "www\\.youku\\.com\\/show_page\\/id_.*\\.html",
            //  q: ".baseinfo > .thumb > img",
            //  example: 'http://www.youku.com/v_olist/c_97.html',
            // },
            {name: "人人影视",
             d: "yyets.com",
             r: "^(res\\.yyets\\.com.*?/ftp/(?:attachment/)?\\d+/\\d+)/[ms]_(.*)",
             s: "http://$1/$2"
            },
 
            // 论坛 BBS
            {name: "firefox 扩展中心",
             d: "addons.mozilla.org",
             r: "addons.cdn.mozilla.net/user-media/previews/thumbs/",
             s: "/thumbs/full/",
            },
            {name: "firefox 中文社区",
             d: "firefox.net.cn",
             r: "www.firefox.net.cn/attachment/thumb/",
             s: "r;www.firefox.net.cn/attachment/"
            },
 
            // 软件 SoftWare
            {name: "非凡软件站",
             d: "www.crsky.com",
             r: /pic\.crsky\.com.*_s\.gif$/i,
             s: '/_s././',
             example: "http://www.crsky.com/soft/5357.html",
            },
 
            {name: "zol",
             d: "detail.zol.com.cn",
             r: /(\w+\.zol-img\.com\.cn\/product\/\d+)_\d+x\d+\/(.*\.jpg)/i,
             s: "$1/$2",
             // s: "$1_800x600/$2",
             example: "http://detail.zol.com.cn/240/239857/pic.shtml"
            },
            // 游戏 Game
            {name: "天极网",
             d: "game.yesky.com",
             r: /_\d+x\d+\.([a-z]+)$/i,
             s: 'r;.$1',
             example: "http://game.yesky.com/tupian/165/37968665.shtml",
            },
            {name: "超级玩家",
             d: "dota2.sgamer.com",
             r: /\/s([^\.\/]+\.[a-z]+$)/i,
             s: "r;/$1",
             example: "http://dota2.sgamer.com/albums/201407/8263_330866.html",
            },
 
            // 漫画
            {name: "nhentai",
             d: "nhentai.net",
             r: /\/(\d+)t(\.[a-z]+)$/i,
             s: "r;/$1$2",
             example: "http://nhentai.net/g/113475/",
            },
        ];
 
        //图标
        prefs.icons={
            actual:'data:image/png;base64,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',
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',
            brokenImg_small:'data:image/png;base64,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',
        };
 
        //分享api；有需求的照着添加
        //api项，请返回给一个{url:url,wSize:{w:,h:}}，脚本会自动调用window.open打开，如果不返回任何的话，脚本将不做任何其他事情。
        //api的参数
        /*{
    title
    pic
    url
} */
        prefs.share={
            weibo:{
                disabled:false,
                name:'新浪微博',
                icon:'data:image/png;base64,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',
                api:function(args){
                    var url='http://service.weibo.com/share/share.php?'+
                        'title='+args.title+
                        '&url='+args.url+
                        '&pic='+args.pic;
                    return {
                        url:url,
                        wSize:{
                            h:500,
                            w:620,
                        },
                    };
                },
            },
            t:{
                name:'腾讯微博',
                icon:'data:image/png;base64,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',
                api:function(args){
                    var url='http://v.t.qq.com/share/share.php?'+
                        'title='+args.title+
                        '&url='+args.url+
                        '&pic='+args.pic;
                    return {
                        url:url,
                        wSize:{
                            h:500,
                            w:620,
                        },
                    };
                },
            },
            qZone:{
                name:'QQ空间',
                icon:'data:image/png;base64,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',
                api:function(args){
                    var url='http://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzshare_onekey?'+
                        'title='+args.title+
                        '&pics='+args.pic+
                        '&url='+args.url;
                    return {
                        url:url,
                        wSize:{
                            h:650,
                            w:620,
                        },
                    };
                },
            },
            fanfou:{
                name:'饭否',
                icon:'data:image/png;base64,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',
                api:function(args){
                    var url='http://fanfou.com/sharer/image?'+
                        'u='+args.url+
                        '&t='+args.title+
                        '&img_src='+args.pic;
                    return{
                        url:url,
                        wSize:{
                            h:550,
                            w:650,
                        },
                    };
                },
            },
            tieba:{
                name:'百度贴吧',
                icon:'data:image/png;base64,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',
                api:function(args){
                    var url = 'http://tieba.baidu.com/f/commit/share/openShareApi?'+
                        'title='+args.title+
                        '&url='+args.url+
                        '&pic='+args.pic;
                    return {
                        url:url,
                        wSize:{
                            h:600,
                            w:630,
                        },
                    };
                },
            },
            renren:{
                name:'人人网',
                icon:'data:image/png;base64,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',
                api:function(args){
                    var url='http://widget.renren.com/dialog/share?'+
                        'link='+args.url+
                        '&title='+args.title+
                        '&pic='+args.pic;
                    return {
                        url:url,
                        wSize:{
                            h:600,
                            w:650,
                        },
                    };
                },
            },
            douban:{
                name:'豆瓣',
                icon:'data:image/png;base64,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',
                api:function(args){
                    var url='http://shuo.douban.com/%21service/share?'+
                        'href='+args.url+
                        '&name='+args.title+
                        '&image='+args.pic;
                    return {
                        url:url,
                        wSize:{
                            h:350,
                            w:600,
                        },
                    };
                },
            },
        };
 
        if (typeof String.prototype.startsWith != 'function') {
            String.prototype.startsWith = function(str) {
                return this.slice(0, str.length) == str;
            };
        }
 
        function getMStr(func) {
            var lines = func.toString();
            lines = lines.substring(lines.indexOf("/*") + 3, lines.lastIndexOf("*/"));
            return lines;
        }
 
        function toRE(obj, flag) {
            if (!obj) {
                return obj;
            } else if (obj instanceof RegExp) {
                return obj;
            } else if (flag) {
                return new RegExp(obj, flag);
            } else if (obj instanceof Array) {
                return new RegExp(obj[0], obj[1]);
            } else if (typeof obj === 'string') {
                if (obj.indexOf('*') != -1 && obj.indexOf('.*') == -1) {
                    obj = wildcardToRegExpStr(obj);
                }
                return new RegExp(obj);
            }
        }
 
        function wildcardToRegExpStr(urlstr) {
            if (urlstr.source) return urlstr.source;
            var reg = urlstr.replace(/[()\[\]{}|+.,^$?\\]/g, "\\$&").replace(/\*+/g, function(str){
                return str === "*" ? ".*" : "[^/]*";
            });
            return "^" + reg + "$";
        }
 
        function isXPath(xpath) {
            return xpath.startsWith('./') || xpath.startsWith('//') || xpath.startsWith('id(');
        }
 
        function getElementMix(selector, contextNode, doc) {
            var ret;
            if (!selector || !contextNode) return ret;
            doc = doc || document;
 
            var type = typeof selector;
            if (type == 'string') {
                if (isXPath(selector)) {
                    ret = getElementByXpath(selector, contextNode, doc);
                } else {
                    ret = contextNode.parentNode.querySelector(selector);
                }
            } else if (type == 'function') {
                ret = selector(contextNode, doc);
            }
            return ret;
        }
 
        function launchFullScreen(element) {
            if (element.requestFullscreen) {
                element.requestFullscreen();
            } else if (element.msRequestFullscreen) {
                element.msRequestFullscreen();
            } else if (element.mozRequestFullScreen) {
                element.mozRequestFullScreen();
            } else if (element.webkitRequestFullscreen) {
                element.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
            }
        }
 
        function cancelFullScreen() {
            if (document.exitFullscreen) {
                document.exitFullscreen();
            } else if (document.msExitFullscreen) {
                document.msExitFullscreen();
            } else if (document.mozCancelFullScreen) {
                document.mozCancelFullScreen();
            } else if (document.webkitExitFullscreen) {
                document.webkitExitFullscreen();
            }
        }
 
        // 检测缩放
        function detectZoom (){
            var ratio = 0,
                screen = window.screen,
                ua = navigator.userAgent.toLowerCase();
 
            if (window.devicePixelRatio !== undefined) {
                ratio = window.devicePixelRatio;
            }
            else if (~ua.indexOf('msie')) {
                if (screen.deviceXDPI && screen.logicalXDPI) {
                    ratio = screen.deviceXDPI / screen.logicalXDPI;
                }
            }
            else if (window.outerWidth !== undefined && window.innerWidth !== undefined) {
                ratio = window.outerWidth / window.innerWidth;
            }
 
            if (ratio){
                ratio = Math.round(ratio * 100);
            }
 
            return ratio;
        }
 
        //获取位置
        function getContentClientRect(target){
            var rect=target.getBoundingClientRect();
            var compStyle=unsafeWindow.getComputedStyle(target);
            var pFloat=parseFloat;
            var top=rect.top + pFloat(compStyle.paddingTop) + pFloat(compStyle.borderTopWidth);
            var right=rect.right - pFloat(compStyle.paddingRight) - pFloat(compStyle.borderRightWidth);
            var bottom=rect.bottom - pFloat(compStyle.paddingBottom) - pFloat(compStyle.borderBottomWidth);
            var left=rect.left + pFloat(compStyle.paddingLeft) + pFloat(compStyle.borderLeftWidth);
            return {
                top:top,
                right:right,
                bottom:bottom,
                left:left,
                width:right-left,
                height:bottom-top,
            };
        };
 
        //获取窗口大小.
        function getWindowSize(){
            /*
        //包含滚动条
        return {
            h:window.innerHeight,
            w:window.innerWidth,
        };
    */
 
            //去除滚动条的窗口大小
            var de=document.documentElement;
            var body=document.body;
            var backCompat=document.compatMode=='BackCompat';
            return {
                h:backCompat? body.clientHeight : de.clientHeight,
                w:backCompat? body.clientWidth : de.clientWidth,
            };
 
        };
 
        //获取已滚动的距离
        function getScrolled(container){
            if(container){
                return {
                    x:container.scrollLeft,
                    y:container.scrollTop,
                };
            };
            return {
                x:'scrollX' in window ? window.scrollX : ('pageXOffset' in window ? window.pageXOffset : document.documentElement.scrollLeft || document.body.scrollLeft),
                y:'scrollY' in window ? window.scrollY : ('pageYOffset' in window ? window.pageYOffset :  document.documentElement.scrollTop || document.body.scrollTop),
            };
        };
 
        //xpath 获取单个元素
        function getElementByXpath(xpath,contextNode,doc){
            doc=doc || document;
            contextNode=contextNode || doc;
            return doc.evaluate(xpath,contextNode,null,9,null).singleNodeValue;
        };
 
 
        //事件支持检测.
        function eventSupported( eventName,elem ){
            elem = elem || document.createElement("div");
            eventName = "on" + eventName;
            var isSupported = (eventName in elem);
            if (!isSupported){
                if(!elem.setAttribute){//setAttribute是元素节点的方法
                    elem=document.createElement("div");
                };
                var setAttr;
                if(!elem.hasAttribute(eventName)){
                    setAttr=true;
                    elem.setAttribute(eventName, "return;");
                };
                isSupported = typeof elem[eventName] == "function";
                if(setAttr)elem.removeAttribute(eventName);
            };
            return isSupported;
        };
 
 
        //检测属性支持.dom属性
        //返回带前缀的可以直接执行是属性
        function proSupported(proName,elem){
            //判断第一个字母是否大写，如果是的话，为构造函数，前缀也要大写
            var prefix=/^[A-Z]/.test(proName)? ['','WebKit-','O-','Moz-','MS-'] : ['','webkit-','o-','moz-','ms-'];
            var i=0;
            var p_i;
            var sProName;
            elem = elem || document.createElement("div");
            while(typeof (p_i=prefix[i++])!='undefined'){
                sProName=(p_i+proName).replace(/-([A-z])/g,function(a,b){
                    return b.toUpperCase();
                });
                //console.log(sProName);
                if(sProName in elem)return sProName;
            };
        };
 
 
        //css属性支持
        //带前缀的默认为大写（所有浏览器支持）
        //比如WebkitTransform,MozTransform,OTransfomr
        //chrome浏览器大小写前缀都行。
        //firefox,opera只能大写
        //ie 9+只能小写
        function cssProSupported(proName,elem,capitalize){
            if(capitalize!==false)capitalize=true;
            proName=proName.toLowerCase();
 
            var prefix=['','-webkit-','-o-','-moz-','-ms-'];
            elem=elem || document.createElement('div');
            var style=elem.style;
            var camelPro;
 
            // 会有个错误 invalid 'in' operand style
            try {
                for(var i=0,ii=prefix.length;i<ii;i++){
                    var first=true;
                    camelPro=(prefix[i]+proName).replace(/-([a-z])/g,function(a,b){
                        b=b.toUpperCase();
                        if(first){
                            first=false;
                            if(!capitalize){
                                b=b.toLowerCase();
                            };
                        };
                        return b;
                    });
                    //console.log(camelPro);
                    if(camelPro in style){
                        return camelPro;
                    }
                }
            } catch(ex) {}
 
            if(!capitalize)return;
            return cssProSupported(proName,elem,false);
 
        };
 
        //css属性值支持
        function cssValueSupported(proName,value,elem){
            var prefix=['','-webkit-','-o-','-moz-','-ms-'];
            elem=elem || document.createElement('div');
            var style=elem.style;
            var prefixedValue;
            for(var i=0,ii=prefix.length;i<ii;i++){
                prefixedValue=prefix[i] + value;
                style[proName]=prefixedValue;
                if(style[proName]==prefixedValue){
                    return prefixedValue;
                };
            };
        };
 
 
        //elem.dataset的兼容实现
        //ie不支持；firefoxGM储存不能反映到元素属性上。
        function dataset(elem,pro,value){
 
            function getDataPrefix(){
                return 'data-' + pro.replace(/[A-Z]/g,function(m){
                    return '-' + m.toLowerCase();
                });
            };
 
            if(typeof value=='undefined'){//取值
                if(elem.dataset){
                    value = elem.dataset[pro];
                }else{//没有取到值，返回undefined，getAttribute默认是返回null，所以判断一下。
                    var prefixedPro=getDataPrefix();
                    if(elem.hasAttribute(prefixedPro)){
                        value=elem.getAttribute(prefixedPro);
                    };
                };
                return value;
            }else{
                elem.setAttribute(getDataPrefix(),value);
            };
        };
 
 
        //重新检查悬浮图片
        function imgReHover(img){
            //要检查的图片，是当前悬浮的。
            if(!floatBar.shown || floatBar.data.img != img)return;
            //console.log(img);
 
            var mHover=document.createEvent('MouseEvent');
            var cr=img.getBoundingClientRect();
            mHover.initMouseEvent('mouseover',true,true,window,0, cr.left + 10, cr.top + 10, cr.left + 10, cr.top + 10, false,false,false,false, 0,null);
            img.dispatchEvent(mHover);
        };
 
        // 获取真正的unsafeWindow,chrome里面也能访问到真实环境的变量
        // 在 chrome 37 测试无效
        if(!envir.firefox && !envir.opera && !envir.ie && !storage.supportGM){
            ;(function(){
                document.addEventListener('picViewer-return-unsafeWindow',function(e){
                    unsafeWindow = e.detail;
                    // alert(unsafeWindow.$);
                },true);
 
                //页面脚本
                var s=document.createElement('script');
                s.textContent='(' + (function(){
                    var cusEvent=document.createEvent('CustomEvent');
                    cusEvent.initCustomEvent('picViewer-return-unsafeWindow',false,false,window);
                    document.dispatchEvent(cusEvent);
                }).toString() +')()';
                document.head.appendChild(s);
            })();
        };
 
 
        //抛出错误到错误控制台
        function throwErrorInfo(err){
            if(console && console.error){
                console.error(err.message + '\n\n' + (err.stacktrace? err.stacktrace : '') + '\n\n' , err);
            };
        };
 
        //对象克隆
        function cloneObject(obj,deep){
            var obj_i;
            var ret=Array.isArray(obj)? [] : {};
            for(var i in obj){
                if(!obj.hasOwnProperty(i))continue;
                obj_i=obj[i];
                if(!deep || typeof obj_i!='object' || obj_i===null || obj_i.nodeType){
                    ret[i]=obj_i;
                }else{
                    ret[i]=cloneObject(obj_i,deep);
                };
            };
            return ret;
        };
 
        //闪烁元素。
        function flashEle(ele,duration){
            if(dataset(ele,'pvFlashing'))return;
            if(ele.offsetHeight==0)return;
            dataset(ele,'pvFlashing','1');
 
            var oOutline=ele.style.outline;
            var oOutlineOffset=ele.style.outlineOffset;
            var oOpacity=ele.style.opacity;
            var oTransform=ele.style[support.cssTransform];
 
            var count=0;
            var startTime=Date.now();
            duration=duration? duration : 1200;
 
            var flashInterval=setInterval(function(){
                var outline='none',
                    outlineOffset=0,
                    opacity=0.3,
                    transform='';
 
                if(count % 2 == 0){
                    outline='5px dashed rgba(255,0,0,0.95)';
                    opacity=0.95;
                    outlineOffset='1px';
                    transform='scale(1.1)';
                }else{
                    if((Date.now() - startTime) > duration){
                        clearInterval(flashInterval);
                        outline=oOutline;
                        opacity=oOpacity;
                        outlineOffset=oOutlineOffset;
                        transform=oTransform;
                        ele.removeAttribute('data-pv-flashing');
                    };
                };
 
                ele.style.outline=outline;
                ele.style.outlineOffset=outlineOffset;
                ele.style.opacity=opacity;
                ele.style[support.cssTransform]=transform;
 
                count++;
            },80);
        };
 
        //支持情况.
        var support={
            cssTransform:cssProSupported('transform'),
            cssCursorValue:{
                zoomIn:cssValueSupported('cursor','zoom-in'),
                zoomOut:cssValueSupported('cursor','zoom-out'),
                grab:cssValueSupported('cursor','grab'),
                grabbing:cssValueSupported('cursor','grabbing'),
            },
        };
 
 
        //console.log('浏览器的一些对象支持情况:',support);
 
        //动画算法
        /*
 t: current time（当前时间）；
 b: beginning value（初始值）；
 c: change in value（变化量）；
 d: duration（持续时间）。
*/
 
        var Tween = {
            Cubic: {
                easeInOut: function(t,b,c,d){
                    if ((t/=d/2) < 1) return c/2*t*t*t + b;
                    return c/2*((t-=2)*t*t + 2) + b;
                },
            },
        };
 
        //imgReady
        var imgReady=(function(){
            var iRInterval,
                iRReadyFn=[],
                isrcs=[]
            ;
 
            var timeLimit=3 * 60 * 1000;//3分钟
 
            function checkReady(){
                var now= Date.now();
                for(var i=0,ii=iRReadyFn.length,iRReadyFn_i;i<ii;i++){
                    iRReadyFn_i=iRReadyFn[i];
                    //now - iRReadyFn_i.startTime >= timeLimit ||
                    if(iRReadyFn_i()){
                        iRReadyFn.splice(i,1);
                        isrcs.splice(i,1);
                        i--;
                        ii--;
                    };
                };
                //console.log('checkReady',iRReadyFn.length)
                if(iRReadyFn.length==0){
                    clearInterval(iRInterval);
                    iRInterval=null;
                };
            };
 
 
 
            var imgReady=function(img,opts){
 
                if(/NodeList|HTMLCollection/.test(Object.prototype.toString.call(img))  || Array.isArray(img)){
                    arrayFn.forEach.call(img,function(img,index,array){
                        if(img instanceof HTMLImageElement){
                            imgReady(img,opts);
                        };
                    });
                    return;
                };
 
                if(!(img instanceof HTMLImageElement)){
                    var t_img=document.createElement('img');
                    t_img.src=img;
                    img=t_img;
                    t_img=null;
                };
 
                var ready,load,error,loadEnd,abort,timeout,time;
                ready=opts.ready;
                load=opts.load;
                error=opts.error;
                loadEnd=opts.loadEnd;
                abort=opts.abort;
                timeout=opts.timeout;
                time=typeof opts.time=='number'? opts.time : 0;
 
                if(time){
                    setTimeout(function(){
                        if(!loadEndDone){
                            aborted=true;
                            removeListener();
                            img.src= prefs.icons.brokenImg_small;
                            if(timeout){
                                timeout.call(img,{
                                    target:img,
                                    type:'timeout',
                                });
                            };
                            loadEndDone=true;
                            if(loadEnd){
                                loadEnd.call(img,{
                                    target:img,
                                    type:'timeout',
                                });
                            };
 
                        };
                    },time);
                };
 
                var src=img.src;
                var loadEndDone;
 
                function go(type,e){
                    switch(type){
                        case 'load':{
                            removeListener();
                            go('ready');//如果直接触发load，那么先触发ready
                            if(load){
                                load.call(img,e);
                            };
 
                            if(!loadEndDone){
                                loadEndDone=true;
                                if(loadEnd){
                                    loadEnd.call(img,e);
                                };
                            };
                        }break;
                        case 'ready':{
                            if(!ready || readyHandler.done)return;
                            readyHandler.done=true;
                            ready.call(img,{
                                target:img,
                                type:'ready',
                            });
                        }break;
                        case 'error':{
                            removeListener();
                            if(error){
                                error.call(img,e);
                            };
                            if(!loadEndDone){
                                loadEndDone=true;
                                if(loadEnd){
                                    loadEnd.call(img,e);
                                };
                            };
                        }break;
                    };
                };
 
                var aborted;
                var ret={
                    img:img,
                    abort:function(){
                        if(!loadEndDone){
                            aborted=true;
                            removeListener();
                            img.src= prefs.icons.brokenImg_small;
                            if(abort){
                                abort.call(img,{
                                    target:img,
                                    type:'abort',
                                });
                            };
                            loadEndDone=true;
                            if(loadEnd){
                                loadEnd.call(img,{
                                    target:img,
                                    type:'abort',
                                });
                            };
                        };
                    },
                };
 
                function readyHandler(){//尽快的检测图片大小.
                    if(loadEndDone || aborted)return true;
                    if(img.naturalWidth==0 || img.naturalHeight==0)return;
                    go('ready');
                    return true;
                };
 
 
                function loadHandler(e){
                    go('load',e);
                };
 
                function errorHandler(e){
                    go('error',e);
                };
 
                function removeListener(){
                    img.removeEventListener('load',loadHandler,true);
                    img.removeEventListener('error',errorHandler,true);
                };
 
                //ready必须在load之前触发。
 
                if(img.complete){//图片已经加载完成.
                    if(typeof img.width=='number' && img.width && img.height){//图片
                        setTimeout(function(){
                            if(aborted)return;
                            go('load',{
                                type:'load',
                                target:img,
                            });
                        },0);
                    }else{//这不是图片.opera会识别错误.
                        setTimeout(function(){
                            if(aborted)return;
                            go('error',{
                                type:'error',
                                target:img,
                            });
                        },0);
                    };
                    return ret;
                };
 
 
                img.addEventListener('load',loadHandler,true);
                img.addEventListener('error',errorHandler,true);
 
 
                if(ready){
                    var index=isrcs.indexOf(src);
                    if(index==-1){
                        isrcs.push(src);
                        readyHandler.startTime= Date.now();
                        iRReadyFn.push(readyHandler);
                    }else{
                        iRReadyFn[index].startTime= Date.now();
                    };
 
                    if(!iRInterval){
                        iRInterval=setInterval(checkReady,66);
                    };
                };
 
                return ret;
            };
 
            return imgReady;
        })();
 
 
        var addWheelEvent=(function(){
 
            function getSupportEventName(){
                var ret='DOMMouseScroll';
                if(eventSupported('wheel')){//w3c FF>=17 ie>=9
                    ret='wheel';
                }else if(eventSupported('mousewheel')){//opera,chrome
                    ret='mousewheel';
                };
                return ret;
            };
 
            var eventName;
 
            return function(ele,callback,useCapture){
                if(!eventName){
                    eventName=getSupportEventName();
                };
 
                ele.addEventListener(eventName,function(e){
                    var type=e.type;
                    var ne;
                    if(type!='wheel'){
                        ne={};
                        for(var i in e){
                            ne[i]=e[i];
                        };
 
                        ne.type='wheel';
                        ne.deltaX=0;
                        ne.deltaY=0;
                        ne.deltaZ=0;
                        ne.deltaMode=1;//line
                        ne.preventDefault=e.preventDefault.bind(e);
                        ne.stopPropagation=e.stopPropagation.bind(e);
 
                        var x=0,y=0;
                        if(typeof e.axis=='number'){//DOMMouseScroll
                            if(e.axis==2){
                                y=e.detail;
                            }else{
                                x=e.detail;
                            };
                        }else{
                            //opera早起版本的mousewheel只支持y轴的滚动,e.wheelDeltaY undefined
                            if(typeof e.wheelDeltaY=='undefined' ||  e.wheelDeltaY!=0){
                                y=-e.wheelDelta/40;
                            }else{
                                x=-e.wheelDelta/40;
                            };
                        };
                        ne.deltaY =y;
                        ne.deltaX =x;
 
                    };
 
                    callback.call(this,ne? ne : e);
                },useCapture || false);
            };
        })();
 
 
        var addCusMouseEvent=(function(){
 
            function getSupported(){
                return {
                    mouseleave:eventSupported('mouseleave'),
                    mouseenter:eventSupported('mouseenter'),
                };
            };
 
            var support;
            var map={
                mouseleave:'mouseout',
                mouseenter:'mouseover',
            };
 
            return function(type, ele, fn){//事件类型，元素，监听函数
                if(!support){
                    support=getSupported();
                };
 
                // chrome 30+ 虽然支持 mouseenter，但是存在问题
                if(support[type] && !(type == 'mouseenter' && window.chrome)){
                    ele.addEventListener(type,fn,false);//mouseleave,enter不冒泡
                }else{
                    ele.addEventListener(map[type],function(e){
                        var relatedTarget=e.relatedTarget;//mouseout，去往的元素；mouseover，来自的元素
                        if(!this.contains(relatedTarget)){
                            fn.call(this,e);
                        };
                    },true);
                };
            };
 
        })();
 
 
        //库
        function GalleryC(){
            this.init();
        };
 
        var gallery;
        var galleryMode;
 
        GalleryC.prototype={
            init:function(){
                this.addStyle();
                var container=document.createElement('span');
 
                this.gallery=container;
                container.className='pv-gallery-container';
                container.tabIndex=1;//为了获取焦点，来截获键盘事件
                container.innerHTML=
                    '<span class="pv-gallery-head">'+
                    '<span class="pv-gallery-head-float-left">'+
                    '<span title="图片信息" class="pv-gallery-head-left-img-info">'+
                    '<span class="pv-gallery-head-left-img-info-resolution" title="分辨率">0 x 0</span>'+
                    '<span class="pv-gallery-head-left-img-info-scaling" title="缩放比">（100%）</span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '<span class="pv-gallery-head-left-img-info-description" title="图片注释"></span>'+
                    '</span>'+
                    '</span>'+
 
                    '<span title="点击退出收藏模式" class="pv-gallery-head-command pv-gallery-head-command-exit-collection">'+
                    '<span>退出收藏</span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
 
                    '<span title="弹出照片进行复杂操作" class="pv-gallery-head-command pv-gallery-head-command-operate">'+
                    '<span>折腾</span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
 
                    '<span class="pv-gallery-head-command-container">'+
                    '<span class="pv-gallery-head-command pv-gallery-head-command-collect">'+
                    '<span class="pv-gallery-head-command-collect-icon"></span>'+
                    '<span class="pv-gallery-head-command-collect-text"></span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
                    '<span class="pv-gallery-head-command-drop-list pv-gallery-head-command-drop-list-collect">'+
                    '<span title="给收藏的图片添加一些描述吧" class="pv-gallery-head-command-drop-list-item pv-gallery-head-command-drop-list-item-collect-description">'+
                    '<span>描述：</span>'+
                    '<textarea data-prefs="description" cols="25" rows="5"></textarea>'+
                    '</span>'+
                    '</span>'+
                    '</span>'+
 
                    '<span class="pv-gallery-head-command-container">'+
                    '<span title="播放幻灯片" class="pv-gallery-head-command pv-gallery-head-command-slide-show">'+
                    '<span class="pv-gallery-head-command_overlayer"></span>'+
                    '<span class="pv-gallery-head-command-slide-show-button">'+
                    '<span class="pv-gallery-head-command-slide-show-button-inner"></span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
                    '<span class="pv-gallery-head-command-slide-show-countdown" title="倒计时"></span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
                    '<span class="pv-gallery-head-command-drop-list pv-gallery-head-command-drop-list-slide-show">'+
                    '<span class="pv-gallery-head-command-drop-list-item" title="间隔时间，单位（秒）">'+
                    '<input data-prefs="interval" step="1" min="1" type="number" value="5" />'+
                    '<span>间隔(s)</span>'+
                    '</span>'+
                    '<span class="pv-gallery-head-command-drop-list-item"  title="从后往前播放">'+
                    '<input id="pv-gallery-head-command-drop-list-item-slide-show-backward" data-prefs="backward" type="checkbox" />'+
                    '<label for="pv-gallery-head-command-drop-list-item-slide-show-backward">后退　　　</label>'+
                    '</span>'+
                    '<span class="pv-gallery-head-command-drop-list-item"  title="从每张图片完全读取完成后才开始倒计时">'+
                    '<input id="pv-gallery-head-command-drop-list-item-slide-show-wait" data-prefs="wait" type="checkbox" checked="checked" />'+
                    '<label for="pv-gallery-head-command-drop-list-item-slide-show-wait">等待图片读取</label>'+
                    '</span>'+
                    '<span class="pv-gallery-head-command-drop-list-item"  title="快速跳过读取错误的图片">'+
                    '<input id="pv-gallery-head-command-drop-list-item-slide-show-skipErrorImg" data-prefs="skipErrorImg" type="checkbox" checked="checked" />'+
                    '<label for="pv-gallery-head-command-drop-list-item-slide-show-skipErrorImg">跳过错误图片</label>'+
                    '</span>'+
                    '</span>'+
                    '</span>'+
 
                    '<span class="pv-gallery-head-command-container">'+
                    '<span title="选择图片类别" class="pv-gallery-head-command pv-gallery-head-command-category">'+
                    '<span>类别</span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
                    '<span class="pv-gallery-head-command-drop-list pv-gallery-head-command-drop-list-category">'+
                    '</span>'+
                    '</span>'+
 
                    '<span class="pv-gallery-head-command-container">'+
                    '<span title="一些命令菜单" class="pv-gallery-head-command pv-gallery-head-command-others">'+
                    '<span>命令</span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
                    '<span class="pv-gallery-head-command-drop-list pv-gallery-head-command-drop-list-others">'+
                    '<span class="pv-gallery-head-command-drop-list-item" data-command="openInNewWindow" title="新窗口打开图片">新窗口打开</span>'+
                    '<span class="pv-gallery-head-command-drop-list-item" data-command="scrollIntoView" title="滚动到当前图片所在的位置">定位到图片</span>'+
                    '<span class="pv-gallery-head-command-drop-list-item" data-command="enterCollection" title="查看所有收藏的图片">查看收藏</span>'+
                    '<span class="pv-gallery-head-command-drop-list-item" data-command="exportImages" title="导出所有图片的链接到新窗口">导出图片</span>'+
                    '<span class="pv-gallery-head-command-drop-list-item" data-command="copyImages" title="复制所有大图的地址">复制图片</span>'+
                    '<span class="pv-gallery-head-command-drop-list-item" title="最后几张图片时，滚动主窗口到最底部，然后自动加载新的图片">'+
                    '<input type="checkbox"  data-command="scrollToEndAndReload"/>'+
                    '<label data-command="scrollToEndAndReload">自动重载</label>'+
                    '</span>'+
                    '<span id="pv-gallery-fullscreenbtn" class="pv-gallery-head-command-drop-list-item" data-command="fullScreen">进入全屏</span>'+
                    '<span class="pv-gallery-head-command-drop-list-item" data-command="openPrefs">设置</span>'+
                    '</span>'+
                    '</span>'+
 
                    '<span class="pv-gallery-head-command-container">'+
                    '<span title="分享" class="pv-gallery-head-command pv-gallery-head-command-share">'+
                    '<span>分享</span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
                    '<span class="pv-gallery-head-command-drop-list pv-gallery-head-command-drop-list-share">'+
                    '</span>'+
                    '</span>'+
 
                    '<span title="关闭库" class="pv-gallery-head-command pv-gallery-head-command-close">'+
                    '</span>'+
 
                    '</span>'+
 
                    '<span class="pv-gallery-body">'+
 
                    '<span class="pv-gallery-img-container">'+
 
                    '<span class="pv-gallery-img-content">'+
                    '<span class="pv-gallery-img-parent">'+
                    '<img title="读取错误，点击重载" class="pv-gallery-img_broken" src="'+prefs.icons.brokenImg+'" />'+
                    '</span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
 
                    '<span class="pv-gallery-img-controler pv-gallery-img-controler-pre"></span>'+
                    '<span class="pv-gallery-img-controler pv-gallery-img-controler-next"></span>'+
 
                    '<span class="pv-gallery-scrollbar-h pv-gallery-img-scrollbar-h">'+
                    '<span class="pv-gallery-scrollbar-h-track pv-gallery-img-scrollbar-h-track">'+
                    '<span class="pv-gallery-scrollbar-h-handle pv-gallery-img-scrollbar-h-handle"></span>'+
                    '</span>'+
                    '</span>'+
 
                    '<span class="pv-gallery-scrollbar-v pv-gallery-img-scrollbar-v">'+
                    '<span class="pv-gallery-scrollbar-v-track pv-gallery-img-scrollbar-v-track">'+
                    '<span class="pv-gallery-scrollbar-v-handle pv-gallery-img-scrollbar-v-handle"></span>'+
                    '</span>'+
                    '</span>'+
 
                    '<span class="pv-gallery-sidebar-toggle" title="开关侧边栏">'+
                    '<span class="pv-gallery-sidebar-toggle-content"></span>'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '</span>'+
 
                    '</span>'+
 
                    '<span class="pv-gallery-sidebar-container" unselectable="on">'+
                    '<span class="pv-gallery-vertical-align-helper"></span>'+
                    '<span class="pv-gallery-sidebar-content" >'+
 
                    '<span class="pv-gallery-sidebar-controler pv-gallery-sidebar-controler-pre"></span>'+
                    '<span class="pv-gallery-sidebar-controler pv-gallery-sidebar-controler-next"></span>'+
 
                    '<span class="pv-gallery-sidebar-thumbnails-container">'+
                    '</span>'+
 
                    '<span class="pv-gallery-scrollbar-h pv-gallery-thumb-scrollbar-h">'+
                    '<span class="pv-gallery-scrollbar-h-track pv-gallery-thumb-scrollbar-h-track">'+
                    '<span class="pv-gallery-scrollbar-h-handle pv-gallery-thumb-scrollbar-h-handle"></span>'+
                    '</span>'+
                    '</span>'+
                    '<span class="pv-gallery-scrollbar-v pv-gallery-thumb-scrollbar-v">'+
                    '<span class="pv-gallery-scrollbar-v-track pv-gallery-thumb-scrollbar-v-track">'+
                    '<span class="pv-gallery-scrollbar-v-handle pv-gallery-thumb-scrollbar-v-handle"></span>'+
                    '</span>'+
                    '</span>'+
 
                    '</span>'+
                    '</span>'+
 
                    '</span>';
                document.body.appendChild(container);
 
                var maximizeTrigger=document.createElement('span');
                this.maximizeTrigger=maximizeTrigger;
                maximizeTrigger.innerHTML='-回到库-<span class="pv-gallery-maximize-trigger-close" title="关闭库"></span>';
                maximizeTrigger.className='pv-gallery-maximize-trigger';
 
                document.body.appendChild(maximizeTrigger);
 
 
                var validPos=['top','right','bottom','left'];
                var sBarPosition=prefs.gallery.sidebarPosition;
                if(validPos.indexOf(sBarPosition)==-1){
                    sBarPosition='bottom';
                };
 
                this.sBarPosition=sBarPosition;
                this.selectedClassName='pv-gallery-sidebar-thumb_selected-' + sBarPosition;
 
 
                var sBarDirection='v';//垂直放置
                var isHorizontal=false;
                if(sBarPosition=='top' || sBarPosition=='bottom'){
                    sBarDirection='h';//水平放置
                    isHorizontal=true;
                };
                this.sBarDirection=sBarDirection;
                this.isHorizontal=isHorizontal;
 
                var classPrefix='pv-gallery-';
                var validClass=[
                    'head',
 
                    'head-left-img-info',
                    'head-left-img-info-description',
                    'head-left-img-info-resolution',
                    'head-left-img-info-scaling',
 
                    'head-command-close',
                    'head-command-operate',
                    'head-command-slide-show',
                    'head-command-slide-show-button-inner',
                    'head-command-slide-show-countdown',
                    'head-command-collect',
                    'head-command-exit-collection',
 
                    'head-command-drop-list-category',
                    'head-command-drop-list-others',
                    'head-command-drop-list-share',
                    'head-command-drop-list-slide-show',
                    'head-command-drop-list-collect',
 
                    'body',
 
                    'img-container',
 
                    'img-scrollbar-h',
                    'img-scrollbar-h-handle',
                    'img-scrollbar-h-track',
 
                    'img-scrollbar-v',
                    'img-scrollbar-v-handle',
                    'img-scrollbar-v-track',
 
                    'thumb-scrollbar-h',
                    'thumb-scrollbar-h-handle',
                    'thumb-scrollbar-h-track',
 
                    'thumb-scrollbar-v',
                    'thumb-scrollbar-v-handle',
                    'thumb-scrollbar-v-track',
 
                    'img-content',
                    'img-parent',
                    'img_broken',
 
                    'img-controler-pre',
                    'img-controler-next',
 
                    'sidebar-toggle',
                    'sidebar-toggle-content',
 
                    'sidebar-container',
                    'sidebar-content',
 
                    'sidebar-controler-pre',
                    'sidebar-controler-next',
 
                    'sidebar-thumbnails-container',
                ];
 
                var eleMaps={};
                this.eleMaps=eleMaps;
 
                validClass.forEach(function(c){
                    eleMaps[c]=container.querySelector('.'+ classPrefix + c);
                });
 
                var posClass=[//需要添加'top bottom left right'class的元素
                    'img-container',
                    'sidebar-toggle',
                    'sidebar-container',
                    'sidebar-thumbnails-container',
                ];
                posClass.forEach(function(c){
                    eleMaps[c].classList.add(classPrefix + c + '-' +sBarPosition);
                });
 
                var hvClass=[//需要添加'v h'class的元素
                    'sidebar-toggle',
                    'sidebar-toggle-content',
                    'sidebar-container',
                    'sidebar-content',
                    'sidebar-controler-pre',
                    'sidebar-controler-next',
                    'sidebar-thumbnails-container',
                ];
                hvClass.forEach(function(c){
                    eleMaps[c].classList.add(classPrefix + c + '-' + sBarDirection);
                });
 
 
 
                //图片区域水平方向的滚动条
                var imgScrollbarH=new this.Scrollbar({
                    bar:eleMaps['img-scrollbar-h'],
                    handle:eleMaps['img-scrollbar-h-handle'],
                    track:eleMaps['img-scrollbar-h-track'],
                },
                                                     eleMaps['img-content'],
                                                     true);
                this.imgScrollbarH=imgScrollbarH;
 
                //图片区域垂直方向的滚动条
                var imgScrollbarV=new this.Scrollbar({
                    bar:eleMaps['img-scrollbar-v'],
                    handle:eleMaps['img-scrollbar-v-handle'],
                    track:eleMaps['img-scrollbar-v-track'],
                },
                                                     eleMaps['img-content'],
                                                     false);
                this.imgScrollbarV=imgScrollbarV;
 
                //缩略图区域的滚动条
                var thumbScrollbar;
                if(isHorizontal){
                    thumbScrollbar=new this.Scrollbar({
                        bar:eleMaps['thumb-scrollbar-h'],
                        handle:eleMaps['thumb-scrollbar-h-handle'],
                        track:eleMaps['thumb-scrollbar-h-track'],
                    },
                                                      eleMaps['sidebar-thumbnails-container'],
                                                      true);
                }else{
                    thumbScrollbar=new this.Scrollbar({
                        bar:eleMaps['thumb-scrollbar-v'],
                        handle:eleMaps['thumb-scrollbar-v-handle'],
                        track:eleMaps['thumb-scrollbar-v-track'],
                    },
                                                      eleMaps['sidebar-thumbnails-container'],
                                                      false);
                };
                this.thumbScrollbar=thumbScrollbar;
 
                var self=this;
 
                var imgStatistics={//图片的总类，统计,初始化值
                    rule:{
                        shown:true,
                        count:0,
                        description:'由高级规则匹配出来的',
                        name:'高级规则',
                    },
                    tpRule:{
                        shown:true,
                        count:0,
                        description:'由通配规则匹配出来的',
                        name:'通配规则',
                    },
                    scale:{
                        shown:true,
                        count:0,
                        description:'js自动查找，相对页面显示的图片有缩放过的',
                        name:'缩放过的',
                    },
                    force:{
                        shown:true,
                        count:0,
                        description:'js自动查找，无缩放过的，但是满足一定的大小',
                        name:'无缩放过',
                    },
 
                    // new
                    // scaleZoomResized: {
                    //  shown: false,
                    //  count: 0,
                    //  description: '缩放的图片，图片尺寸最少相差比例 ' + prefs.gallery.zoomresized + '%',
                    //  name: '小缩放'
                    // },
                    scaleSmall: {
                        shown: true,
                        count: 0,
                        description: '缩放的图片，实际尺寸的高或宽都小于 ' + prefs.gallery.scaleSmallSize + ' 像素',
                        name: '小尺寸'
                    },
                };
                this.imgStatistics=imgStatistics;
 
                //生成分类下拉列表
                var typeMark='';
                var imgStatistics_i;
                for(var i in imgStatistics){
                    if(!imgStatistics.hasOwnProperty(i))continue;
                    imgStatistics_i=imgStatistics[i];
                    typeMark+=
                        '<span class="pv-gallery-head-command-drop-list-item" title="'+imgStatistics_i.description+'">'+
                        '<input type="checkbox" data-type="'+i+'" id="pv-gallery-head-command-drop-list-item-category-'+i+'" />'+
                        '<label for="pv-gallery-head-command-drop-list-item-category-'+i+'">'+imgStatistics_i.name+'</label>'+
                        '</span>';
                };
                eleMaps['head-command-drop-list-category'].innerHTML=typeMark;
 
 
                //收藏相关
                var collection={
                    getMatched:function(){
                        return (this.all || this.get())._find(function(value,index){
                            if(value.src==self.src){
                                return true;
                            };
                        });
                    },
                    check:function(){
                        //从缓存数据中检查。
                        var matched=this.getMatched();
                        this.favorite=matched? matched[0] : null;
 
                        this.tAreaValue();
                        this.highLight();
                    },
                    tAreaValue:function(){
                        this.textArea.value=this.favorite? this.favorite.description : self.eleMaps['head-left-img-info-description'].textContent;
                    },
                    highLight:function(){
                        eleMaps['head-command-collect'].classList[this.favorite? 'add' : 'remove']('pv-gallery-head-command-collect-favorite');
                    },
                    add:function(){
                        this.favorite={
                            src:self.src,
                            thumbSrc:dataset(self.relatedThumb,'thumbSrc'),
                            naturalSize:self.imgNaturalSize,
                            description:this.textArea.value,
                        };
 
                        //为了防止多个页面同时的储存，添加前，先载入最新的数据。
                        this.get();
                        //检查是否已经在里面了
                        var matched=this.getMatched();
 
                        if(matched){//如果已经存在，删除旧的。
                            this.all.splice(matched[1],1);
                        };
                        this.all.unshift(this.favorite);//添加到最前面。
                        this.highLight();
                        this.save();
                    },
                    remove:function(){
                        //获得最新数据
                        this.get();
                        //检查是否已经在里面了
                        var matched=this.getMatched();
                        if(matched){
                            this.all.splice(matched[1],1);
                            this.save();
                        };
                        this.favorite=null;
                        this.highLight();
                    },
                    save:function(){
                        storage.setItem('pv_collection',encodeURIComponent(JSON.stringify(this.all)));
                    },
                    get:function(){
                        var ret=storage.getItem('pv_collection') || '[]';
                        try{
                            ret=JSON.parse(decodeURIComponent(ret));
                        }catch(e){
                            ret=[];
                        };
                        this.all=ret;
                        return ret;
                    },
                    enter:function(){
 
                        if(this.all.length==0){
                            alert('你还木有收藏任何图片');
                            return;
                        };
 
                        this.mMode=true;
                        var button=this.dropListButton;
                        button.textContent='退出收藏查看';
                        dataset(button,'command','exitCollection');
                        this.headButton.style.display='inline-block';
                        eleMaps['sidebar-thumbnails-container'].classList.add('pv-gallery-sidebar-thumbnails_hide-span');
 
                        //生成dom
                        var container=document.createElement('span');
 
                        this.container=container;
 
                        var data_i;
                        var spanMark='';
                        var i=0;
                        while(data_i=this.all[i++]){
                            spanMark +=
                                '<span class="pv-gallery-sidebar-thumb-container" '+
                                ' data-natural-size="' + JSON.stringify(data_i.naturalSize).replace(/"/g,'&quot;') +
                                '" data-src="' + data_i.src +
                                '" data-thumb-src="' + data_i.thumbSrc +
                                '">'+
                                '<span class="pv-gallery-vertical-align-helper"></span>'+
                                '<span class="pv-gallery-sidebar-thumb-loading" title="正在读取中......"></span>'+
                                '</span>';
                        };
                        container.innerHTML=spanMark;
                        eleMaps['sidebar-thumbnails-container'].appendChild(container);
 
 
                        this.selected=self.selected;//备份
 
                        self.select(container.children[0]);
                        self.thumbScrollbar.reset();
                        self.loadThumb();
                    },
                    exit:function(){
                        if(!this.mMode)return;
 
                        this.mMode=false;
                        var button=this.dropListButton;
                        button.textContent='查看所有收藏';
                        dataset(button,'command','enterCollection');
                        this.headButton.style.display='none';
                        eleMaps['sidebar-thumbnails-container'].removeChild(this.container);
                        eleMaps['sidebar-thumbnails-container'].classList.remove('pv-gallery-sidebar-thumbnails_hide-span');
 
                        self.select(this.selected);
                        self.thumbScrollbar.reset();
                        self.loadThumb();
                    },
                    textArea:eleMaps['head-command-drop-list-collect'].querySelector('textarea'),
                    dropListButton:eleMaps['head-command-drop-list-others'].querySelector('[data-command$="Collection"]'),
                    headButton:eleMaps['head-command-exit-collection'],
                };
 
                this.collection=collection;
 
                eleMaps['head-command-drop-list-collect'].addEventListener('input',function(e){
                    var target=e.target;
                    if(!collection.favorite)return;
                    collection.favorite[dataset(target,'prefs')]=target.value;
                    clearTimeout(collection.saveTimer);
                    collection.saveTimer=setTimeout(function(){
                        collection.save();
                    },500);
                },true);
 
 
                var slideShow={
                    opts:{
                        interval:5000,
                        wait:true,
                        backward:false,
                        skipErrorImg:true,
                        run:false,
                    },
                    //timing:
                    //select(选中下一个图片后（缩略图栏选中了），还没开始读取大图（一般选中后，延时200ms开始读取大图）),
                    //loadEnd(当前显示图片已经读取完成后),
                    //click(点击按钮),
                    //change(改变设置)
                    run:function(timing){
                        if(!this.opts.run)return;
 
                        if(timing!='loadEnd'){
                            this.stop();
                        };
 
                        if(timing=='click' || timing=='select'){
                            if(!this.getEle()){//没有要切换到的图片了，停止
                                this.exit();
                                return;
                            };
                        };
 
                        if(this.opts.skipErrorImg){
                            if(self.imgError && !self.isLoading){//确保是当前图片和选中缩略图一致的时候
                                self.select(this.getEle());
                                return;
                            };
                        };
 
 
                        if(this.opts.wait){
                            if(timing!='select' && (timing=='loadEnd'  || (!self.isLoading && (self.img.complete || self.imgError)))){
                                this.go();
                            };
                        }else{
                            if(timing!='loadEnd'){
                                this.go();
                            };
                        };
 
                    },
                    getEle:function(){
                        return self.getThumSpan(this.opts.backward)
                    },
                    go:function(){
                        this.stop();//停止上次的。
                        var interval=this.opts.interval;
                        var _self=this;
                        this.timer=setTimeout(function(){
                            _self.setCountdown(0);
                            clearInterval(_self.countdownTimer);
                            self.select(_self.getEle());
                        },interval);
 
                        var startTime=Date.now();
                        this.countdownTimer=setInterval(function(){
                            _self.setCountdown(interval - (Date.now()-startTime));
                        },100);
                    },
                    stop:function(){
                        this.setCountdown(this.opts.interval);
                        clearTimeout(this.timer);
                        clearInterval(this.countdownTimer);
                    },
                    exit:function(){
                        this.opts.run=true;
                        this.switchStatus();
                        this.stop();
                    },
                    setCountdown:function(value){
                        eleMaps['head-command-slide-show-countdown'].textContent=(value/1000).toFixed(2);
                    },
                    switchStatus:function(){
                        this.opts.run=!this.opts.run;
                        eleMaps['head-command-slide-show-button-inner'].classList[this.opts.run? 'add' : 'remove']('pv-gallery-head-command-slide-show-button-inner_stop');
                    },
                    check:function(){
                        this.opts.run?  this.run('click') : this.stop();
                    },
                };
 
                slideShow.setCountdown(slideShow.opts.interval);;
                this.slideShow=slideShow;
 
                //幻灯片播放下拉列表change事件的处理
                eleMaps['head-command-drop-list-slide-show'].addEventListener('change',function(e){
                    var target=e.target;
                    var value;
                    var prefs=dataset(target,'prefs');
                    if(target.type=='checkbox'){
                        value=target.checked;
                    }else{
                        value=parseFloat(target.value);
                        if(isNaN(value)){//无效
                            value=slideShow.opts[prefs] / 1000;
                        };
                        value=value>0 ? value : 1;
                        target.value=value;
                        value *= 1000;
                    };
                    slideShow.opts[prefs]=value;
                    slideShow.run('change');
                    //console.log(slideShow.opts);
                },true);
 
 
                //分类下拉列表的点击发生change事件的处理
                eleMaps['head-command-drop-list-category'].addEventListener('change',function(e){
                    var target=e.target;
                    self.iStatisCopy[dataset(target,'type')].shown=target.checked;
                    self.switchThumbVisible();//切换图片类别显隐;
                },true);
 
 
                //命令下拉列表的点击处理
                eleMaps['head-command-drop-list-others'].addEventListener('click',function(e){
                    if(e.button!=0)return;//左键
                    var target=e.target;
                    var command=dataset(target,'command');
                    if(!command)return;
                    switch(command){
                        case 'openInNewWindow':{
                            window.open(self.src,'_blank');
                        }break;
                        case 'scrollIntoView':{
                            if(collection.mMode){
                                alert('收藏模式中，无法使用');
                                return;
                            };
                            var relatedThumb=self.relatedThumb;
                            var index=arrayFn.indexOf.call(self.imgSpans,relatedThumb);
                            var targetImg=self.data[index].img;
 
                            if(targetImg){
                                if(!document.documentElement.contains(targetImg) || unsafeWindow.getComputedStyle(targetImg).display=='none'){//图片不存在文档中，或者隐藏了。
                                    alert('图片不在文档中，或者被隐藏了，无法定位！');
                                    return;
                                };
                                self.minimize();
                                setTimeout(function(){
                                    self.navigateToImg(targetImg);
                                    flashEle(targetImg);
                                },0);
 
                            }else{//frame发送过来的时候删除了不能传送的图片
 
                                document.addEventListener('pv-navigateToImg',function(e){
                                    //console.log('pv-navigateToImg',e);
                                    if(!e.detail){
                                        alert('图片不在文档中，或者被隐藏了，无法定位！');
                                        return;
                                    };
                                    self.minimize();
                                    setTimeout(function(){//将frame滚动到中间位置
                                        if(self.iframe){
                                            self.navigateToImg(self.iframe);
                                        };
                                    },0);
                                },true);
                                window.postMessage({//问问frame。。
                                    messageID:messageID,
                                    command:'navigateToImg',
                                    index:index,
                                    to:self.from,
                                },'*');
                            };
 
                        }break;
                        case 'exportImages':
                            self.exportImages();
                            break;
                        case 'copyImages':
                            self.copyImages(true);
                            break;
                        case 'scrollToEndAndReload':
                            var checkbox = target.parentNode.firstChild;
                            checkbox.checked = !checkbox.checked;
 
                            prefs.gallery.scrollEndAndLoad = checkbox.checked;
                            break;
                        case 'fullScreen':
                            if (target.classList.contains('fullscreenbtn')) {
                                if (cancelFullScreen()) return;
                                target.textContent = '进入全屏';
                                target.classList.remove('fullscreenbtn');
                                return;
                            }
 
                            if (launchFullScreen(document.documentElement)) return;
                            target.classList.toggle('fullscreenbtn');
                            target.textContent = '退出全屏';
                            target.classList.add('fullscreenbtn');
                            break;
                        case 'openPrefs':
                            openPrefs();
                            break;
                        case 'enterCollection':{
                            //进入管理模式
                            collection.enter();
                        }break;
                        case 'exitCollection':{
                            //退出管理模式
                            collection.exit();
                        }break;
                    };
                },true);
 
                // 监视全屏的变化
                function fullScreenChanged() {
                    if (!document.fullscreenElement && // alternative standard method
                        !document.mozFullScreenElement &&
                        !document.webkitFullscreenElement &&
                        !document.msFullscreenElement) {
 
                        var btn = document.getElementById("pv-gallery-fullscreenbtn");
                        if (btn) {
                            btn.textContent = '进入全屏';
                            btn.removeClass('fullscreenbtn');
                        }
                    }
                }
                document.addEventListener('webkitfullscreenchange', fullScreenChanged, false);
                document.addEventListener('mozfullscreenchange', fullScreenChanged, false);
                document.addEventListener('fullscreenchange', fullScreenChanged, false);
 
                //生成分享的下拉列表
                var shareMark='';
                var shareItem;
                for(var i in prefs.share){
                    if(!prefs.share.hasOwnProperty(i))continue;
                    shareItem=prefs.share[i];
                    if(shareItem.disabled)continue;
                    shareMark+=(
                        '<span class="pv-gallery-head-command-drop-list-item" data-site="'+i+'" style="\
background-image:url(\''+ shareItem.icon +'\');\
background-position:4px center;\
background-repeat:no-repeat;\
padding-left:24px;">'+shareItem.name+'</span>');
                };
 
                eleMaps['head-command-drop-list-share'].innerHTML=shareMark;
 
                //分享下拉列表的点击处理
                eleMaps['head-command-drop-list-share'].addEventListener('click',function(e){
                    if(e.button!=0)return;//左键
                    var target=e.target;
                    var site=dataset(target,'site');
                    if(!site)return;
                    var site_info=prefs.share[site];
                    var param=site_info.api.call(self.img,{
                        title:encodeURIComponent(document.title),
                        pic:encodeURIComponent(self.src),
                        url:encodeURIComponent(location.href),
                    });
                    if(!param)return;
                    window.open(param.url,'_blank','height='+param.wSize.h+',width='+param.wSize.w+',left=30,top=30,location=no,status=no,toolbar=no,menubar=no,scrollbars=yes');
                },true);
 
 
 
                var loadThumbsTimer;
                eleMaps['sidebar-thumbnails-container'].addEventListener('scroll',function(e){//发生scroll事件时加载缩略图
                    clearTimeout(loadThumbsTimer);//加个延时，在连续触发的时候缓一缓。
                    loadThumbsTimer=setTimeout(function(){
                        self.loadThumb();
                    },200);
                },false);
 
                addWheelEvent(eleMaps['body'],function(e){//wheel事件
                    if(e.deltaZ!=0)return;//z轴
                    var target=e.target;
                    e.preventDefault();
                    if(eleMaps['sidebar-container'].contains(target)){//缩略图区滚动滚轮翻图片
                        var distance=self.thumbSpanOuterSize;
 
                        if(e.deltaY<0 || e.deltaX<0){//向上滚
                            distance=-distance;
                        };
                        thumbScrollbar.scrollBy(distance)
                    }else{//图片区域滚动
                        var distance=100;
                        if(e.deltaY!=0){//y轴
                            if(self.img.classList.contains('pv-gallery-img_zoom-out')){//图片可以缩小时，滚动图片，否则切换图片。
                                if(e.deltaY < 0){
                                    distance=-distance;
                                };
                                if(eleMaps['img-scrollbar-h'].contains(target)){//如果在横向滚动条上。
                                    imgScrollbarH.scrollBy(distance);
                                }else{
                                    imgScrollbarV.scrollBy(distance);
                                };
                            }else{
                                e.deltaY < 0 ? self.selectPrevious() : self.selectNext();
                            };
                        }else{//x轴
                            if(e.deltaX < 0){
                                distance=-distance;
                            };
                            imgScrollbarH.scrollBy(distance);
                        };
                    };
                },true);
 
 
                //focus,blur;
                addCusMouseEvent('mouseenter',container,function(){
                    this.focus();
                });
                addCusMouseEvent('mouseleave',container,function(){
                    this.blur();
                });
 
                //上下左右切换图片,空格键模拟滚动一页
 
                var validKeyCode=[38,39,40,37,32,9]//上右下左,32空格,tab禁止焦点切换。
                var keyDown;
 
                document.addEventListener('keydown',function(e){
                    var keyCode=e.keyCode;
                    var index=validKeyCode.indexOf(keyCode);
                    if(index==-1)return;
 
                    var target=e.target;
 
                    if(!container.contains(target))return;//触发焦点不再gallery里面。
                    e.preventDefault();
 
                    if(keyCode==9)return;//tab键
                    if(keyCode==32){//32空格，模拟滚动一页
                        imgScrollbarV.scrollByPages(1);
                        return;
                    };
 
                    if(keyDown)return;//已按下。
                    keyDown=true;
 
                    var stop;
                    switch(index){
                        case 0:;
                        case 3:{
                            self.selectPrevious();
                            stop=self.simpleSlideShow(true);
                        }break;
                        case 1:;
                        case 2:{
                            self.selectNext();
                            stop=self.simpleSlideShow();
                        }break;
                    };
 
                    function keyUpHandler(e){
                        if(e.keyCode!=validKeyCode[index])return;
                        document.removeEventListener('keyup',keyUpHandler,false);
                        keyDown=false;
                        stop();
                    };
                    document.addEventListener('keyup',keyUpHandler,false);
 
                },true);
 
 
                var imgDraged;
                eleMaps['img-parent'].addEventListener('mousedown',function(e){//如果图片尺寸大于屏幕的时候按住图片进行拖移
                    var target=e.target;
                    if(e.button!=0 || target.nodeName!='IMG')return;
                    var bigger=target.classList.contains('pv-gallery-img_zoom-out');//如果是大于屏幕
 
                    var oClient={
                        x:e.clientX,
                        y:e.clientY,
                    };
 
                    var oScroll={
                        left:self.imgScrollbarH.getScrolled(),
                        top:self.imgScrollbarV.getScrolled(),
                    };
 
                    var moveFiredCount=0;
                    var moveHandler=function(e){
                        moveFiredCount++;
                        if(moveFiredCount<2){//给个缓冲。。
                            return;
                        };
                        imgDraged=true;
                        if(bigger){
                            target.style.cursor= support.cssCursorValue.grabbing || 'pointer';
                            self.imgScrollbarV.scroll(oScroll.top-(e.clientY-oClient.y));
                            self.imgScrollbarH.scroll(oScroll.left-(e.clientX-oClient.x));
                        };
                    };
 
                    var upHandler=function(){
                        target.style.cursor='';
 
                        //拖曳之后阻止随后可能产生click事件产生的大小切换。
                        //确保在随后的click事件发生后执行
                        setTimeout(function(){
                            imgDraged=false;
                        },0);
 
                        document.removeEventListener('mousemove',moveHandler,true);
                        document.removeEventListener('mouseup',upHandler,true);
                    };
 
                    document.addEventListener('mousemove',moveHandler,true);
                    document.addEventListener('mouseup',upHandler,true);
                },true);
 
                eleMaps['img-parent'].addEventListener('click',function(e){//点击图片本身就行图片缩放处理
                    var target=e.target;
                    if(e.button!=0 || target.nodeName!='IMG')return;
 
                    if(imgDraged){//在拖动后触发的click事件，取消掉。免得一拖动完就立即进行的缩放。。。
                        imgDraged=false;
                        return;
                    };
 
                    if(target.classList.contains('pv-gallery-img_zoom-in')){//放大
                        self.fitContains=false;
                        var zoomX = typeof e.offsetX=='undefined' ? e.layerX : e.offsetX;
                        var zoomY = typeof e.offsetY=='undefined' ? e.layerY : e.offsetY;
                        var scaleX=zoomX/target.offsetWidth;
                        var scaleY=zoomY/target.offsetHeight;
                        self.fitToScreen({
                            x:scaleX,
                            y:scaleY,
                        });
                    }else if(target.classList.contains('pv-gallery-img_zoom-out')){
                        self.fitContains=true;
                        self.fitToScreen();
                    };
                },true);
 
 
                container.addEventListener('mousedown',function(e){//鼠标按在导航上，切换图片
                    if(e.button!=0)return;//左键
                    var target=e.target;
                    if(target.nodeName=='IMG')e.preventDefault();
 
                    var matched=true;
                    var stop;
                    switch(target){
                        case eleMaps['img-controler-pre']:;
                        case eleMaps['sidebar-controler-pre']:{//上一个
                            self.selectPrevious();
                            stop=self.simpleSlideShow(true);
                        }break;
                        case eleMaps['img-controler-next']:;
                        case eleMaps['sidebar-controler-next']:{//下一个
                            self.selectNext();
                            stop=self.simpleSlideShow();
                        }break;
                        default:{
                            matched=false;
                        }break;
                    };
 
                    function mouseUpHandler(e){
                        document.removeEventListener('mouseup',mouseUpHandler,true);
                        stop();
                    };
 
                    if(matched){
                        e.preventDefault();
                        document.addEventListener('mouseup',mouseUpHandler,true);
                    };
                },false);
 
                eleMaps['sidebar-thumbnails-container'].addEventListener('click',function(e){//点击缩略图切换
                    if(e.button!=0)return;//左键
                    var target=e.target;
                    var targetP;
                    if(!dataset(target,'src') && (targetP=target.parentNode) && !dataset(targetP,'src'))return;
 
                    self.select(targetP? targetP : target);
                },false);
 
                //点击读取错误的图片占位符重新读取
                eleMaps['img_broken'].addEventListener('click',function(e){
                    if(self.isLoading){
                        self.select(self.errorSpan);
                    }else{
                        self.getImg(self.errorSpan);
                    };
                },false);
 
 
                eleMaps['head'].addEventListener('click',function(e){//顶栏上面的命令
                    if(e.button!=0)return;
                    var target=e.target;
                    if(eleMaps['head-command-close']==target){
                        self.close();
                    }else if(eleMaps['head-command-operate'].contains(target)){
                        imgReady(self.src,{
                            ready:function(){
                                new ImgWindowC(this);
                            },
                        });
                    }else if(eleMaps['head-command-collect'].contains(target)){
                        if(collection.favorite){
                            collection.remove();
                        }else{
                            collection.add();
                        };
                    }else if(eleMaps['head-command-exit-collection'].contains(target)){
                        collection.exit();
                    }else if(eleMaps['head-command-slide-show'].contains(target)){
                        slideShow.switchStatus();
                        slideShow.check();
                    };
 
                },false);
 
 
                //点击还原。
                maximizeTrigger.addEventListener('click',function(e){
                    var target=e.target;
                    this.style.display='none';
                    if(target==this){
                        self.show();
                        self.resizeHandler();
                    }else{
                        self.minimized=false;
                    };
                },true);
 
 
                this._resizeHandler=this.resizeHandler.bind(this);
 
                //插入动态生成的css数据。
                this.globalSSheet.insertRule('.pv-gallery-sidebar-thumb-container{'+
                                             ((isHorizontal ? 'width' : 'height') + ':'  + (isHorizontal ?  unsafeWindow.getComputedStyle(eleMaps['sidebar-thumbnails-container']).height : unsafeWindow.getComputedStyle(eleMaps['sidebar-thumbnails-container']).width)) +
                                             '}',this.globalSSheet.cssRules.length);
 
                this.forceRepaintTimes=0;
 
                container.style.display='none';
                this.shown=false;
 
                // 我添加的部分
                this.initToggleBar();
                this.initZoom();
            },
 
            initToggleBar: function() {  // 是否显示切换 sidebar 按钮
                /**
         * TODO：仿造下面的链接重新改造过？
         * http://image.baidu.com/detail/newindex?col=%E8%B5%84%E8%AE%AF&tag=%E4%BD%93%E8%82%B2&pn=0&pid=5123662821688142478&aid=&user_id=10086&setid=-1&sort=0&newsPn=4&star=&fr=hotword&from=1
         */
                if (prefs.gallery.sidebarToggle) {
                    var toggleBar = this.eleMaps['sidebar-toggle'];
                    toggleBar.style.display = 'block';
                    toggleBar.style.height = '12px';
                    toggleBar.addEventListener('click', this.showHideBottom.bind(this), false);
 
                    // 顶部圆角
                    switch (prefs.gallery.sidebarPosition) {
                        case 'bottom':
                            toggleBar.style.borderRadius = '8px 8px 0 0';  // 左上、右上、右下、左下
                            break;
                        case 'top':
                            toggleBar.style.borderRadius = '0 0 8px 8px';
                            break;
                        case 'left':
                            toggleBar.style.height = '60px';
                            toggleBar.style.borderRadius = '0 8px 8px 0';
                            break;
                        case 'right':
                            toggleBar.style.height = '60px';
                            toggleBar.style.borderRadius = '8px 0 0 8px';
                            break;
                    }
                }
            },
            showHideBottom: function() {  // 显示隐藏 sidebar-container
                var sidebarContainer = this.eleMaps['sidebar-container'],
                    isHidden = sidebarContainer.style.visibility == 'hidden';
 
                sidebarContainer.style.visibility = isHidden ? 'visible' : 'hidden';
 
                var sidebarPosition = prefs.gallery.sidebarPosition,
                    capitalize = function(string) { // 将字符串中每个单词首字母大写
                        var words = string.split(" ");
                        for (var i = 0; i < words.length; i++) {
                            words[i] = words[i].charAt(0).toUpperCase() + words[i].slice(1);
                        }
                        return words.join(" ");
                    };
 
                // 修正下图片底部的高度
                this.eleMaps['img-container'].style['border' + capitalize(sidebarPosition)] = isHidden ?
                    prefs.gallery.sidebarSize + 'px solid transparent' :
                '0';
                // 修正底部距离
                this.eleMaps['sidebar-toggle'].style[sidebarPosition] = isHidden ? '-5px' : '0';
            },
            initZoom: function() {  // 如果有放大，则把图片及 sidebar 部分缩放比率改为 1
                if (prefs.gallery.autoZoom && document.body.style.zoom != undefined) {
                    var oZoom = detectZoom();
                    if (oZoom > 100) {
                        this.eleMaps['body'].style.zoom = 100 / oZoom;
                    }
                }
            },
 
            getThumSpan:function(previous,relatedTarget){
                var ret;
                var rt = relatedTarget || this.selected;
                if(!rt)return;
                while((rt=previous ? rt.previousElementSibling : rt.nextElementSibling)){
                    if(rt.clientWidth!=0){
                        ret=rt;
                        break;
                    };
                };
                return ret;
            },
            selectPrevious:function(){
                this.select(this.getThumSpan(true));
            },
            selectNext:function(){
                this.select(this.getThumSpan());
            },
            select:function(ele,noTransition){
                if(!ele || this.selected==ele)return;
                if(this.selected){
                    this.selected.classList.remove(this.selectedClassName);
                    this.selected.classList.remove('pv-gallery-sidebar-thumb_selected');
                };
                ele.classList.add(this.selectedClassName);
                ele.classList.add('pv-gallery-sidebar-thumb_selected');
 
                this.selected=ele;
                this.arrowVisib();
 
                var self=this;
                clearTimeout(this.loadImgTimer);
                this.loadImgTimer=setTimeout(function(){//快速跳转的时候不要尝试读取图片。
                    self.loadImg(ele);
                },200);
 
                this.selectedIntoView(noTransition);
                this.forceRepaint();
                this.slideShow.run('select');
            },
            loadThumb:function(){//读取可视范围里面的缩略图
 
                var self=this;
 
                var pro=this.isHorizontal ? ['scrollLeft','clientWidth','offsetLeft','offsetWidth'] : ['scrollTop','clientHeight','offsetTop','offsetHeight'];
                var thumbC=this.eleMaps['sidebar-thumbnails-container'];
 
                var scrolled=thumbC[pro[0]];
 
                var loadStopDis=scrolled + thumbC[pro[1]];
 
                var imgSpans=this.selected.parentNode.children;
                var span_i;
                var spanOffset;
                var thumb;
 
                var i=0
                while(span_i=imgSpans[i++]){
                    if(span_i.clientWidth==0)continue;//隐藏的
 
                    spanOffset=span_i[pro[2]];
                    if(spanOffset + span_i[pro[3]] <= scrolled)continue;//在滚动条上面了
                    if(spanOffset >= loadStopDis)break;//在滚动条下面了
 
                    if(dataset(span_i,'thumbLoaded'))continue;//已经加载了缩略图
 
                    thumb=document.createElement('img');
                    thumb.src=dataset(span_i,'thumbSrc') || dataset(span_i,'src') || prefs.icons.brokenImg_small;
                    thumb.className='pv-gallery-sidebar-thumb';
 
                    dataset(span_i,'thumbLoaded','true');
                    span_i.appendChild(thumb);
 
                    imgReady(thumb,{
                        error:function(e){
                            this.src=prefs.icons.brokenImg_small;
                        },
                    });
                };
 
            },
            selectedIntoView:function(noTransition){
                var thumBC=this.eleMaps['sidebar-thumbnails-container'];
                var pro=this.isHorizontal ? ['offsetLeft','clientWidth','offsetWidth'] : ['offsetTop','clientHeight','offsetHeight'] ;
                //需要滚动的距离。
                var needScrollDis= this.selected[pro[0]];
                //尽可能的居中显示
                var thumBCClient=thumBC[pro[1]];
                var scrollCenter=Math.max((thumBCClient - this.selected[pro[2]])/2,0);
 
                this.thumbScrollbar.scroll(needScrollDis - scrollCenter,false,!noTransition);
            },
            getImg:function(ele){
                var self = this;
 
                var src = dataset(ele,'src');
 
                this.lastLoading=src;//记住最后读取的图片
                this.isLoading=true;//表示选择的图片正在读取
 
                // 特殊的 xhr 方式获取
                var xhr = dataset(ele, 'xhr');
                if (xhr) {
                    var xhrError = function() {
                        dataset(ele, 'xhr', '');
                        dataset(ele, 'src', dataset(ele, 'thumb-src'));
                        self.getImg(ele);
                    };
                    xhrLoad.load({
                        url: src,
                        xhr: JSON.parse(decodeURIComponent(xhr)),
                        cb: function(imgSrc, imgSrcs, caption) {
                            if (imgSrc) {
                                dataset(ele, 'src', imgSrc);
                                dataset(ele, 'xhr', '');
                                self.getImg(ele);
                            } else {
                                xhrError();
                            }
                        },
                        onerror: xhrError
                    });
                    return;
                }
 
                var allLoading=this.allLoading;
                if(allLoading.indexOf(src)!=-1){//在读取队列中。
                    return;
                };
                allLoading.push(src);
 
                //上一个读取中的图片，不是当前显示的。那么直接终止
                var preImgR=this.imgReady;
                if(preImgR && this.img){
                    if(preImgR.img.src!=this.src){
                        preImgR.abort();
                        preImgR.removeLI();
                    };
                };
 
 
                //显示读取指示器。
                var loadingIndicator=ele.querySelector('.pv-gallery-sidebar-thumb-loading');
                loadingIndicator.style.display='block';
 
 
                this.imgReady=imgReady(src,{
                    ready:function(){
                        //从读取队列中删除自己
                        var index=allLoading.indexOf(src);
                        if(index!=-1){
                            allLoading.splice(index,1);
                        };
 
                        if(src!=self.lastLoading)return;
 
                        loadingIndicator.style.display='';
                        if(preImgR)preImgR.abort();
                        self.loadImg(this,ele);
                    },
                    loadEnd:function(e){//在loadend后开始预读。
                        //从读取队列中删除自己
                        var index=allLoading.indexOf(src);
                        if(index!=-1){
                            allLoading.splice(index,1);
                        };
 
                        if(src!=self.lastLoading)return;
 
                        if(e.type=='error'){
                            loadingIndicator.style.display='';
                            self.errorSpan=ele;
                            if(preImgR)preImgR.abort();
                            self.loadImg(this,ele,true);
                        };
 
                        self.slideShow.run('loadEnd');
 
                        //console.log(this,'预读开始');
                        if(prefs.gallery.preload){
                            if(self.preloading){//结束上次的预读。
                                self.preloading.abort();
                            };
                            self.preloading=new self.Preload(ele,self);
                            self.preloading.preload();
                        };
                    },
                });
 
                this.imgReady.removeLI=function(){
                    loadingIndicator.style.display='';
                };
 
            },
            loadImg:function(img,relatedThumb,error){
                if(img.nodeName!='IMG'){//先读取。
                    this.getImg(img);
                    return;
                };
 
                if(this.img){
                    this.img.style.display='none';
                };
 
                var imgNaturalSize={
                    h:img.naturalHeight,
                    w:img.naturalWidth,
                };
                this.imgNaturalSize=imgNaturalSize;
 
                this.eleMaps['head-left-img-info-resolution'].textContent= imgNaturalSize.w + ' x ' + imgNaturalSize.h;
                // 加上图片的注释
                var description = decodeURIComponent(dataset(relatedThumb, 'description')),
                    defaultLength = prefs.gallery.descriptionLength;
                this.eleMaps['head-left-img-info-description'].title = description;
                this.eleMaps['head-left-img-info-description'].textContent= description.length > defaultLength ?
                    description.slice(0, defaultLength) + '...' :
                description;
 
                this.img=img;
                this.src=img.src;
                this.isLoading=false;
 
                this.relatedThumb=relatedThumb;
                img.className='pv-gallery-img';
 
                if(error){
                    this.imgError=true;
                    this.img.style.display='none';
                    this.eleMaps['img_broken'].style.display='inline-block';
                }else{
                    this.imgError=false;
                    this.eleMaps['img_broken'].style.display='';
                    if(!dataset(relatedThumb,'naturalSize')){
                        dataset(relatedThumb,'naturalSize',JSON.stringify(imgNaturalSize));
                    };
                };
 
                function styled(){
                    img.style.opacity=1;
                    img.style[support.cssTransform]='scale(1)';
                };
 
 
                if(prefs.gallery.transition){
                    setTimeout(styled,0);
                }else{
                    styled();
                };
 
                this.eleMaps['img-parent'].appendChild(img);
 
                this.fitContains=prefs.gallery.fitToScreen;//适应屏幕
 
                this.fitToScreen({
                    x:0,
                    y:0,
                });
 
                this.collection.check();//检查是否在收藏里面。
 
            },
            fitToScreen:function(scale){
 
                var container=this.eleMaps['img-content'];
                var containerSize={
                    h:container.clientHeight,
                    w:container.clientWidth,
                };
 
                var img=this.img;
 
                img.classList.remove('pv-gallery-img_zoom-in');
                img.classList.remove('pv-gallery-img_zoom-out');
 
                var imgSty=img.style;
                imgSty.width='';
                imgSty.height='';
 
                var contentSSize={
                    h:container.scrollHeight,
                    w:container.scrollWidth,
                };
                var larger=contentSSize.h>containerSize.h || contentSSize.w>containerSize.w;
 
                var scaled='100%';
 
                if(this.fitContains && !(scale && scale.x==0 && scale.y==0 && this.imgNaturalSize.h/this.imgNaturalSize.w > 2.5)){//适应屏幕
                    this.imgScrollbarV.hide();
                    this.imgScrollbarH.hide();
                    if(larger){
                        img.classList.add('pv-gallery-img_zoom-in');
                        if(contentSSize.h/contentSSize.w >=containerSize.h/containerSize.w){
                            var height=this.imgNaturalSize.h-(contentSSize.h - containerSize.h);
                            imgSty.height=height + 'px';
                            scaled=height/this.imgNaturalSize.h;
                        }else{
                            var width=this.imgNaturalSize.w-(contentSSize.w - containerSize.w);
                            imgSty.width=width + 'px';
                            scaled=width/this.imgNaturalSize.w;
                        };
                        scaled=(scaled*100).toFixed(2) + '%';
                    };
                }else{//不做尺寸调整
                    this.imgScrollbarV.reset();
                    this.imgScrollbarH.reset();
 
                    if(larger){
                        img.classList.add('pv-gallery-img_zoom-out');
                        if(scale){//通过鼠标点击进行的切换。
                            this.imgScrollbarH.scroll(container.scrollWidth * scale.x - containerSize.w/2);
                            this.imgScrollbarV.scroll(container.scrollHeight * scale.y - containerSize.h/2);
                        };
                    };
                };
 
 
                var imgScaledInfo=this.eleMaps['head-left-img-info-scaling'];
                imgScaledInfo.textContent='（'+scaled+'）';
                if(scaled!='100%'){
                    imgScaledInfo.style.color='#E9CCCC';
                }else{
                    imgScaledInfo.style.color='';
                };
 
            },
 
            _dataCache: {},
            _appendThumbSpans: function(data, index) {  // 添加缩略图栏的 spans
                var spanMark = '';
                var iStatisCopy = this.iStatisCopy;
 
                if (typeof index == 'undefined' && this.selected) {
                    index = Array.prototype.slice.call(this.imgSpans).indexOf(this.selected);
                }
 
                (data || this.data).forEach(function(item) {
                    iStatisCopy[item.type].count++;
                    spanMark += '<span class="pv-gallery-sidebar-thumb-container' +
                        '" data-type="' + item.type +
                        '" data-src="' + item.src +
                        (item.xhr ? '" data-xhr="' + encodeURIComponent(JSON.stringify(item.xhr)) : '') +
                        '" data-description="' + encodeURIComponent(item.description || '') +
                        '" data-thumb-src="' + item.imgSrc +
                        '" title="' + item.img.title +
                        '">' +
                        '<span class="pv-gallery-vertical-align-helper"></span>' +
                        '<span class="pv-gallery-sidebar-thumb-loading" title="正在读取中......"></span>' +
                        '</span>';
                });
 
                var thumbnails = this.eleMaps['sidebar-thumbnails-container'];
 
                if (data) {  // 新的
                    thumbnails.innerHTML += spanMark;
                } else {
                    thumbnails.innerHTML = spanMark;
 
                    this._dataCache = {};
                }
 
                // 如果是新的，则添加，否则重置并添加。
                var self = this;
                (data || this.data).forEach(function(d) {
                    self._dataCache[d.imgSrc] = true;
                });
 
                //写入类别数据。
                var gallery = this.gallery;
                var input, label, iStatisCopy_i;
 
                for (var i in iStatisCopy) {
                    if (!iStatisCopy.hasOwnProperty(i)) continue;
                    iStatisCopy_i = iStatisCopy[i];
                    input = gallery.querySelector('#pv-gallery-head-command-drop-list-item-category-' + i);
                    input.checked = iStatisCopy_i.shown;
                    if (iStatisCopy_i.count == 0) {
                        input.disabled = true;
                        input.parentNode.classList.add('pv-gallery-head-command-drop-list-item_disabled');
                    } else {
                        input.disabled = false;
                        input.parentNode.classList.remove('pv-gallery-head-command-drop-list-item_disabled');
                    };
 
                    label = gallery.querySelector('label[for="pv-gallery-head-command-drop-list-item-category-' + i + '"]');
                    label.textContent = label.textContent.replace(/（.*）/i, '') + '（' + iStatisCopy_i.count + '）';
                };
 
                this.imgSpans = thumbnails.children;
 
                this.thumbScrollbar.reset();
 
                this.select(this.imgSpans[index], true);
            },
            load:function(data, from, reload){
                if(this.shown || this.minimized){//只允许打开一个,请先关掉当前已经打开的库
 
                    if(from){//frame发送过来的数据。
                        window.postMessage({
                            messageID:messageID,
                            command:'sendFail',
                            to:from,
                        },'*');
                    };
 
                    if(this.minimized){
                        alert('请先关掉当前已经打开的库');
                        flashEle(this.maximizeTrigger);
                    };
                    return;
                };
 
                var self=this;
                if(from){//来自frame，获取这个frame所在的iframe标签。定位到图片的时候要用到。
                    window.postMessage({
                        messageID:messageID,
                        command:'getIframeObject',
                        windowId:from,
                    },'*');
                    document.addEventListener('pv-getIframeObject',function(e){
                        self.iframe=e.detail;
                    },true);
                };
 
                var unique=this.unique(data);
                data=unique.data;
                var index=unique.index;
 
                if (reload && this.data.length >= data.length) {
                    // alert('没有新增的图片');
                    return;
                }
 
                this.clear();//还原对象的一些修改，以便复用。
                this.show(reload);
 
                this.data=data;
                this.from=from;//如果来自frame，那么这个from应该保存了那个frame的窗口id，便于以后通信。
 
                this._appendThumbSpans(null, index);
 
                this.runOnce();
 
                this.switchThumbVisible();
            },
            clear:function(){
                this._dataCache = {};
 
                this.allLoading=[];//读取中的图片数组
                this.iStatisCopy=cloneObject(this.imgStatistics,true);//图片统计副本
                this.selected==null;
                if(this.img){
                    this.img.style.display='none';
                    this.img=null;
                };
                //读取错误的图片占位符
                this.eleMaps['img_broken'].style.display='';
                //清空dom
                this.eleMaps['sidebar-thumbnails-container'].innerHTML='';
                this.eleMaps['head-left-img-info-resolution'].textContent='0 x 0';
                this.eleMaps['head-left-img-info-scaling'].textContent='（100%）';
                //隐藏滚动条
                this.imgScrollbarV.hide();
                this.imgScrollbarH.hide();
                this.thumbScrollbar.hide();
                //重置style;
                this.thumbVisibleStyle.textContent='';
            },
 
            unique:function(data){
                var imgSrc=data.target.src;
 
                var data_i,
                    data_i_src,
                    dataSrcs=[];
 
                var index;
 
                for(var i=0,ii=data.length;i<ii;i++){
                    data_i=data[i];
                    data_i_src=data_i.src;
                    if(dataSrcs.indexOf(data_i_src)!=-1){//已经存在
                        data.splice(i,1);//移除
                        i--;
                        ii--;
                        continue;
                    };
                    dataSrcs.push(data_i_src);
 
                    if(imgSrc==data_i_src){
                        index=i;
                    };
                };
 
                if(typeof index =='undefined'){
                    index=0;
                    data.unshift(data.target);
                };
 
                delete data.target;
 
                return {
                    data:data,
                    index:index,
                };
            },
            show:function(reload){
                this.shown=true;
                galleryMode=true;
 
                if (!reload) {
                    var des=document.documentElement.style;
                    this.deOverflow={
                        x:des.overflowX,
                        y:des.overflowY,
                    };
                    des.overflow='hidden';
                    this.gallery.style.display='';
                    this.gallery.focus();
                    window.addEventListener('resize',this._resizeHandler,true);
                }
            },
            close:function(reload){
                this.shown=false;
                this.minimized=false;
 
                if (!reload) {
                    galleryMode=false;
                    this.gallery.blur();
                    this.gallery.style.display='none';
                    var des=document.documentElement.style;
                    des.overflowX=this.deOverflow.x;
                    des.overflowY=this.deOverflow.y;
                    this.slideShow.exit();
                    this.collection.exit();
                    window.removeEventListener('resize',this._resizeHandler,true);
 
                    // 退出全屏
                    var btn = document.getElementById('pv-gallery-fullscreenbtn');
                    if (btn.classList.contains('fullscreenbtn')) {
                        cancelFullScreen();
                        btn.textContent = '进入全屏';
                        btn.classList.remove('fullscreenbtn');
                    }
                }
            },
            runOnce:function(){//运行一次来获取某些数据。
                var thumbSpanCS=unsafeWindow.getComputedStyle(this.selected);
                this.thumbSpanOuterSize=this.isHorizontal?
                    this.selected.offsetWidth + parseFloat(thumbSpanCS.marginLeft) + parseFloat(thumbSpanCS.marginRight) :
                this.selected.offsetHeight + parseFloat(thumbSpanCS.marginTop) + parseFloat(thumbSpanCS.marginBottom);
 
 
                //console.log(this.thumbSpanOuterSize);
 
                this.runOnce=function(){
                };
            },
 
            minimize:function(){
                this.close();
                this.maximizeTrigger.style.display='block';
                this.minimized=true;
            },
            navigateToImg:function(targetImg){
                targetImg.scrollIntoView();//先调用原方法，可以让overflow hidden的滚动出来。
 
                //让图片近可能的居中
                var imgBCRect=getContentClientRect(targetImg);
                var wSize=getWindowSize();
 
                window.scrollBy(imgBCRect.left - (wSize.w - imgBCRect.width)/2,
                                imgBCRect.top - (wSize.h - imgBCRect.height)/2);
 
            },
            switchThumbVisible:function(){
                var style=this.thumbVisibleStyle;
                var count=0;
                var styleText=[];
                var iStatisCopy=this.iStatisCopy;
                var iStatisCopy_i;
 
                for(var i in iStatisCopy){
                    if(!iStatisCopy.hasOwnProperty(i))continue;
                    iStatisCopy_i=iStatisCopy[i];
                    if(iStatisCopy_i.shown){
                        count+=iStatisCopy_i.count;
                    }else{
                        styleText.push('.pv-gallery-sidebar-thumb-container[data-type="'+i+'"]');
                    };
                };
 
                //写入style;
                style.textContent=styleText.join(',') + '{\
display:none !important;\
}';
 
                //初始化缩略图区的滚动条
                this.thumbScrollbar.reset();
                this.arrowVisib();
 
                //载入缩略图
                this.loadThumb();
            },
            forceRepaint:function(){//解决opera的fixed元素，当滚动条不再最高处的时候，不重绘fixed元素的问题。
                clearTimeout(this.forceRepaintTimer);
                var self=this;
                this.forceRepaintTimer=setTimeout(function(){
                    if(envir.opera){
                        self.forceRepaintTimes % 2 ==0 ? window.scrollBy(0,1) : window.scrollBy(0,-1);
                        self.forceRepaintTimes++;
                    };
                },333);
            },
            resizeHandler:function(){//窗口变化时，调整一些东西。
                this.thumbScrollbar.reset();
                //this.selectedIntoView();
                this.fitToScreen();
                this.loadThumb();
            },
            _isLastSpan: function(span) {  // 用于判断是否自动重载，是否是最后几个图片
                if (this.selected.clientWidth == 0) return false;
                if (!span) return true;
 
                var index = Array.prototype.slice.call(this.imgSpans).indexOf(span);
                if (index != -1) {
                    var total = this.imgSpans.length;
                    if (total - index < prefs.gallery.scrollEndAndLoad_num) {
                        return true;
                    }
                }
            },
            arrowVisib:function(){//当当前选择元素的前面或者后面没有元素的时候隐藏控制箭头
 
                var icps=this.eleMaps['img-controler-pre'].style;
                var icns=this.eleMaps['img-controler-next'].style;
                var scps=this.eleMaps['sidebar-controler-pre'].style;
                var scns=this.eleMaps['sidebar-controler-next'].style;
 
                //下一张的箭头
                var nextSpan = this.getThumSpan();
                if (nextSpan) {
                    icns.display='';
                    scns.display='';
                }else{
                    icns.display='none';
                    scns.display='none';
                };
 
                // 最后几张图片，滚到底部添加新的图片
                if (prefs.gallery.scrollEndAndLoad && this._isLastSpan(nextSpan)) {
                    this.scrollToEndAndReload();
                }
 
                //上一张的箭头
                if(this.getThumSpan(true)){
                    icps.display='';
                    scps.display='';
                }else{
                    icps.display='none';
                    scps.display='none';
                };
            },
            simpleSlideShow:function(backward,interval){
                clearInterval(this.slideShowInterval);//幻灯播放，只允许存在一个，否则得乱套
 
                var self=this;
                var slideShowInterval=setInterval(function(){
                    var before=self.selected;
                    backward ? self.selectPrevious() : self.selectNext();
                    if(before == self.selected){//没有下一个元素了。。
                        stop();
                    };
                },(interval? interval : 800));
 
                this.slideShowInterval=slideShowInterval;
 
                function stop(){
                    clearInterval(slideShowInterval);
                };
 
                return stop;
            },
 
            reload: function() {  // 重新加载所有图片到库里面
                // 函数在 LoadingAnimC 中
                var data = this.getAllValidImgs();
                // 设置当前选中的图片
                data.target = {
                    src: this.selected.dataset.src
                };
 
                this.close(true);
 
                this.load(data, null, true);
            },
            reloadNew: function() {  // 加载新的图片到库里面
                var newer = true;
                var data = this.getAllValidImgs(newer);
                if (data.length) {
                    this._appendThumbSpans(data);
                }
            },
            getAllValidImgs:function(newer){
                var validImgs = [];
 
                var imgs = document.getElementsByTagName('img'),
                    container = document.querySelector('.pv-gallery-container'),
                    preloadContainer = document.querySelector('.pv-gallery-preloaded-img-container');
 
                // 排除库里面的图片
                imgs = Array.prototype.slice.call(imgs).filter(function(img){
                    return !(container.contains(img) || preloadContainer.contains(img));
                });
 
                // 已经在图库里面的
                var self = this;
                imgs.forEach(function(img) {
                    if (newer && self._dataCache[img.src]) return;
 
                    var result = findPic(img);
                    if (result) {
                        validImgs.push(result);
                        self.data.push(result);
                    }
 
                    self._dataCache[img.src] = true;
                });
 
                return validImgs;
            },
            scrollToEndAndReload: function() {  // 滚动主窗口到最底部，然后自动重载库的图片
 
                window.scrollTo(0, 99999);
 
                var self = this;
                clearTimeout(self.reloadTimeout);
                self.reloadTimeout = setTimeout(function(){
                    // self.reload();
                    self.reloadNew();
                }, 1000);
            },
            exportImages: function () {  // 导出所有图片到新窗口
                var nodes = document.querySelectorAll('.pv-gallery-sidebar-thumb-container[data-src]');
                var arr = [].map.call(nodes, function(node){
                    return '<div><img src=' + node.dataset.src + ' /></div>'
                });
 
                var title = document.title;
 
                var html = '\
<head>\
<title>' + title + ' 导出大图</title>\
<style>\
div { float: left; max-height: 180px; max-width: 320px; margin: 2px; }\
img { max-height: 180px; max-width: 320px; }\
</style>\
</head>\
<body>\
<p>【图片标题】：' + title + '</p>\
<p>【图片数量】：' + nodes.length + '</p>\
';
 
                html += arr.join('\n') + '</body>'
                GM_openInTab('data:text/html;charset=utf-8,' + encodeURIComponent(html));
            },
            copyImages: function(isAlert) {
                var nodes = document.querySelectorAll('.pv-gallery-sidebar-thumb-container[data-src]');
                var urls = [].map.call(nodes, function(node){
                    return node.dataset.src;
                });
 
                GM_setClipboard(urls.join('\n'));
 
                if (isAlert) {
                    alert('已成功复制 ' + urls.length + ' 张大图地址');
                }
            },
 
            Preload:function(ele,oriThis){
                this.ele=ele;
                this.oriThis=oriThis;//主this
                this.init();
            },
            Scrollbar:function(scrollbar,container,isHorizontal){
                this.scrollbar=scrollbar;
                this.container=container;
                this.isHorizontal=isHorizontal
                this.init();
            },
 
            addStyle:function(){
                var style=document.createElement('style');
                style.type='text/css';
                style.textContent='\
/*最外层容器*/\
.pv-gallery-container {\
position: fixed;\
top: 0;\
left: 0;\
width: 100%;\
height: 100%;\
min-width:none;\
min-height:none;\
padding: 0;\
margin: 0;\
border: none;\
z-index:2147483647;\
background-color: transparent;\
}\
/*全局border-box*/\
.pv-gallery-container span{\
-moz-box-sizing: border-box;\
box-sizing: border-box;\
line-height: 1.6;\
}\
.pv-gallery-container * {\
font-size: 14px;\
}\
/*点击还原的工具条*/\
.pv-gallery-maximize-trigger{\
position:fixed;\
bottom:15px;\
left:15px;\
display:none;\
background:#000;\
opacity:0.6;\
padding-left:10px;\
font-size:16px;\
line-height:0;\
color:white;\
cursor:pointer;\
box-shadow:3px 3px 0 0 #333;\
z-index:899999998;\
}\
.pv-gallery-maximize-trigger:hover{\
opacity:0.9;\
}\
.pv-gallery-maximize-trigger-close{\
display:inline-block;\
padding-left:10px;\
vertical-align:middle;\
height:30px;\
padding:10px 0;\
width:24px;\
background:url("'+prefs.icons.loadingCancle+'") center no-repeat;\
}\
.pv-gallery-maximize-trigger-close:hover{\
background-color:#333;\
}\
/*顶栏*/\
.pv-gallery-head {\
position: absolute;\
top: 0;\
left: 0;\
width: 100%;\
height:30px;\
z-index:1;\
background-color:rgb(0,0,0);\
border:none;\
border-bottom:1px solid #333333;\
text-align:right;\
line-height:0;\
font-size: 14px;\
color:#757575;\
padding-right:42px;\
}\
.pv-gallery-head > span{\
vertical-align:middle;\
}\
/*顶栏左边*/\
.pv-gallery-head-float-left{\
float:left;\
height:100%;\
text-align:left;\
padding-left:5px;\
}\
.pv-gallery-head-float-left > span{\
display:inline-block;\
height:100%;\
vertical-align:middle;\
}\
.pv-gallery-head-float-left > span > *{\
vertical-align:middle;\
}\
.pv-gallery-head-left-img-info{\
cursor:help;\
}\
.pv-gallery-head-left-img-info-description {\
margin-left: 10px;\
}\
/*顶栏里面的按钮样式-开始*/\
.pv-gallery-head-command{\
display:inline-block;\
cursor:pointer;\
height:100%;\
padding:0 8px;\
text-align:center;\
position:relative;\
z-index:1;\
vertical-align:middle;\
-o-user-select: none;\
-ms-user-select: none;\
-webkit-user-select: none;\
-moz-user-select: -moz-none;\
user-select: none;\
}\
/*辅助点击事件的生成，countdown*/\
.pv-gallery-head-command_overlayer{\
top:0;\
left:0;\
right:0;\
bottom:0;\
position:absolute;\
opacity:0;\
}\
.pv-gallery-head-command > *{\
vertical-align:middle;\
}\
.pv-gallery-head-command-close{\
position:absolute;\
top:0;\
right:0;\
width:40px;\
border-left: 1px solid #333333;\
background:transparent no-repeat center;\
background-image:url("'+prefs.icons.loadingCancle+'");\
}\
.pv-gallery-head-command-slide-show-countdown{\
font-size:0.8em;\
}\
.pv-gallery-head-command-slide-show-button{\
border-radius:36px;\
display:inline-block;\
width:18px;\
height:18px;\
border:2px solid #757575;\
margin-right:3px;\
line-height:0;\
}\
.pv-gallery-head-command-slide-show-button-inner{\
display:inline-block;\
border:none;\
border-top:4px solid transparent;\
border-bottom:4px solid transparent;\
border-left:8px solid #757575;\
vertical-align:middle;\
}\
.pv-gallery-head-command-slide-show-button-inner_stop{\
border-color:#757575;\
}\
.pv-gallery-head-command-collect-icon{\
display:inline-block;\
height:20px;\
width:20px;\
background:transparent url("' + prefs.icons.fivePointedStar + '") 0 0 no-repeat;\
}\
.pv-gallery-head-command-collect-icon ~ .pv-gallery-head-command-collect-text::after{\
content:"收藏";\
}\
.pv-gallery-head-command-collect-favorite > .pv-gallery-head-command-collect-icon{\
background-position:-40px 0 !important;\
}\
.pv-gallery-head-command-collect-favorite > .pv-gallery-head-command-collect-text::after{\
content:"已收藏";\
}\
.pv-gallery-head-command-exit-collection{\
color:#939300 !important;\
display:none;\
}\
.pv-gallery-head-command:hover{\
background-color:#272727;\
color:#ccc;\
}\
/*droplist*/\
.pv-gallery-head-command-drop-list{\
position:absolute;\
right:0;\
display:none;\
box-shadow:0 0 3px #808080;\
background-color:#272727;\
line-height: 1.6;\
text-align:left;\
padding:10px;\
color:#ccc;\
margin-top:-1px;\
}\
.pv-gallery-head-command-drop-list-item{\
display:block;\
padding:2px 5px;\
cursor:pointer;\
white-space:nowrap;\
}\
.pv-gallery-head-command-drop-list-item-collect-description{\
cursor:default;\
}\
.pv-gallery-head-command-drop-list-item-collect-description > textarea{\
resize:both;\
width:auto;\
height:auto;\
}\
.pv-gallery-head-command-drop-list-item_disabled{\
color:#757575;\
}\
.pv-gallery-head-command-drop-list-item input + *{\
padding-left:3px;\
}\
.pv-gallery-head-command-drop-list-item input[type=number]{\
text-align:left;\
max-width:50px;\
height:20px;\
}\
.pv-gallery-head-command-drop-list-item > * {\
vertical-align:middle;\
}\
.pv-gallery-head-command-drop-list-item label {\
font-weight: normal;\
}\
.pv-gallery-head-command-drop-list-item:hover{\
background-color:#404040;\
}\
/*container*/\
.pv-gallery-head-command-container{\
display:inline-block;\
height:100%;\
position:relative;\
}\
/* after伪类生成标识下拉菜单的三角图标*/\
.pv-gallery-head-command-container > .pv-gallery-head-command::after{\
content:"";\
display:inline-block;\
vertical-align:middle;\
border:none;\
border-top:7px solid #757575;\
border-left:5px solid transparent;\
border-right:5px solid transparent;\
margin-left:5px;\
-moz-transition:all 0.3s ease-in-out 0s;\
-webkit-transition:all 0.3s ease-in-out 0s;\
transition:all 0.3s ease-in-out 0s;\
}\
.pv-gallery-head-command-container:hover{\
box-shadow:0 0 3px #808080;\
}\
.pv-gallery-head-command-container:hover > .pv-gallery-head-command{\
background-color:#272727;\
color:#ccc;\
}\
.pv-gallery-head-command-container:hover > .pv-gallery-head-command::after{\
-webkit-transform:rotate(180deg);\
-moz-transform:rotate(180deg);\
transform:rotate(180deg);\
border-top:7px solid #ccc;\
}\
.pv-gallery-head-command-container:hover .pv-gallery-head-command-collect-icon{\
background-position:-20px 0;\
}\
.pv-gallery-head-command-container:hover .pv-gallery-head-command-slide-show-button{\
border-color:#ccc;\
}\
.pv-gallery-head-command-container:hover .pv-gallery-head-command-slide-show-button-inner{\
border-left-color:#ccc;\
}\
.pv-gallery-head-command-container:hover .pv-gallery-head-command-slide-show-button-inner_stop{\
border-color:#ccc;\
}\
.pv-gallery-head-command-container:hover > .pv-gallery-head-command-drop-list{\
display:block;\
}\
/*顶栏里面的按钮样式-结束*/\
.pv-gallery-body {\
display: block;\
height: 100%;\
width: 100%;\
margin: 0;\
padding: 0;\
border: none;\
border-top: 30px solid transparent;\
position: relative;\
background-clip: padding-box;\
z-index:0;\
}\
.pv-gallery-img-container {\
display: block;\
padding: 0;\
margin: 0;\
border: none;\
height: 100%;\
width: 100%;\
background-clip: padding-box;\
background-color: rgba(20,20,20,0.96);\
position:relative;\
}\
.pv-gallery-img-container-top {\
border-top: '+ prefs.gallery.sidebarSize +'px solid transparent;\
}\
.pv-gallery-img-container-right {\
border-right: '+ prefs.gallery.sidebarSize +'px solid transparent;\
}\
.pv-gallery-img-container-bottom {\
border-bottom: '+ prefs.gallery.sidebarSize +'px solid transparent;\
}\
.pv-gallery-img-container-left {\
border-left: '+ prefs.gallery.sidebarSize +'px solid transparent;\
}\
/*大图区域的切换控制按钮*/\
.pv-gallery-img-controler{\
position:absolute;\
top:50%;\
height:60px;\
width:50px;\
margin-top:-30px;\
cursor:pointer;\
opacity:0.3;\
z-index:1;\
}\
.pv-gallery-img-controler-pre{\
background:rgba(70,70,70,0.5) url("'+prefs.icons.arrowLeft+'") no-repeat center;\
left:10px;\
}\
.pv-gallery-img-controler-next{\
background:rgba(70,70,70,0.5) url("'+prefs.icons.arrowRight+'") no-repeat center;\
right:10px;\
}\
.pv-gallery-img-controler:hover{\
background-color:rgba(140,140,140,0.5);\
opacity:0.9;\
z-index:2;\
}\
/*滚动条样式--开始*/\
.pv-gallery-scrollbar-h,\
.pv-gallery-scrollbar-v{\
display:none;\
z-index:1;\
opacity:0.3;\
position:absolute;\
margin:0;\
padding:0;\
border:none;\
}\
.pv-gallery-scrollbar-h{\
bottom:10px;\
left:0;\
right:0;\
height:10px;\
margin:0 2px;\
}\
.pv-gallery-scrollbar-v{\
top:0;\
bottom:0;\
right:10px;\
width:10px;\
margin:2px 0;\
}\
.pv-gallery-scrollbar-h:hover{\
height:15px;\
}\
.pv-gallery-scrollbar-v:hover{\
width:15px;\
}\
.pv-gallery-scrollbar-h:hover,\
.pv-gallery-scrollbar-v:hover{\
opacity:0.9;\
z-index:2;\
}\
.pv-gallery-scrollbar-h-track,\
.pv-gallery-scrollbar-v-track{\
position:absolute;\
top:0;\
left:0;\
right:0;\
bottom:0;\
background-color:rgba(100,100,100,1);\
border:2px solid transparent;\
}\
.pv-gallery-scrollbar-h-handle,\
.pv-gallery-scrollbar-v-handle{\
position:absolute;\
background-color:black;\
}\
.pv-gallery-scrollbar-h-handle{\
height:100%;\
}\
.pv-gallery-scrollbar-v-handle{\
width:100%;\
}\
.pv-gallery-scrollbar-h-handle:hover,\
.pv-gallery-scrollbar-v-handle:hover{\
background-color:#502121;\
}\
.pv-gallery-scrollbar-h-handle:active,\
.pv-gallery-scrollbar-v-handle:active{\
background-color:#391A1A;\
}\
/*滚动条样式--结束*/\
.pv-gallery-img-content{\
display:block;\
width:100%;\
height:100%;\
overflow:hidden;\
text-align:center;\
padding:0;\
border:none;\
margin:0;\
line-height:0;\
font-size:0;\
white-space:nowrap;\
}\
.pv-gallery-img-parent{\
display:inline-block;\
vertical-align:middle;\
line-height:0;\
}\
.pv-gallery-img_broken{\
display:none;\
cursor:pointer;\
}\
.pv-gallery-img{\
position:relative;\/*辅助e.layerX,layerY*/\
display:inline-block;\
vertical-align:middle;\
width:auto;\
height:auto;\
padding:0;\
border:5px solid #313131;\
margin:10px;\
opacity:0.6;\
-webkit-transform:scale(0.9);\
-moz-transform:scale(0.9);\
transform:scale(0.9);\
'+
    (prefs.gallery.transition ? ('\
-webkit-transition: opacity 0.15s ease-in-out,\
-webkit-transform 0.1s ease-in-out;\
-moz-transition: opacity 0.15s ease-in-out,\
-moz-transform 0.1s ease-in-out;\
transition: opacity 0.15s ease-in-out,\
transform 0.1s ease-in-out;\
') : '') + '\
}\
.pv-gallery-img_zoom-out{\
cursor:'+support.cssCursorValue.zoomOut+';\
}\
.pv-gallery-img_zoom-in{\
cursor:'+support.cssCursorValue.zoomIn+';\
}\
.pv-gallery-sidebar-toggle{\
position:absolute;\
line-height:0;\
text-align:center;\
background-color:rgb(0,0,0);\
color:#757575;\
white-space:nowrap;\
cursor:pointer;\
z-index:1;\
display:none;\
}\
.pv-gallery-sidebar-toggle:hover{\
color:#ccc;\
}\
.pv-gallery-sidebar-toggle-h{\
width:80px;\
margin-left:-40px;\
left:50%;\
}\
.pv-gallery-sidebar-toggle-v{\
height:80px;\
margin-top:-40px;\
top:50%;\
}\
.pv-gallery-sidebar-toggle-top{\
top:-5px;\
}\
.pv-gallery-sidebar-toggle-right{\
right:-5px;\
}\
.pv-gallery-sidebar-toggle-bottom{\
bottom:-5px;\
}\
.pv-gallery-sidebar-toggle-left{\
left:-5px;\
}\
.pv-gallery-sidebar-toggle-content{\
display:inline-block;\
vertical-align:middle;\
white-space:normal;\
word-wrap:break-word;\
overflow-wrap:break-word;\
line-height:1.1;\
font-size:12px;\
text-align:center;\
margin:2px;\
}\
.pv-gallery-sidebar-toggle-content-v{\
width:1.1em;\
}\
/*侧边栏开始*/\
.pv-gallery-sidebar-container {\
position: absolute;\
background-color:rgb(0,0,0);\
padding:5px;\
border:none;\
margin:none;\
text-align:center;\
line-height:0;\
white-space:nowrap;\
-o-user-select: none;\
-webkit-user-select: none;\
-moz-user-select: -moz-none;\
user-select: none;\
}\
.pv-gallery-sidebar-container-h {\
height: '+ prefs.gallery.sidebarSize +'px;\
width: 100%;\
}\
.pv-gallery-sidebar-container-v {\
width: '+ prefs.gallery.sidebarSize +'px;\
height: 100%;\
}\
.pv-gallery-sidebar-container-top {\
top: 0;\
left: 0;\
border-bottom:1px solid #333333;\
}\
.pv-gallery-sidebar-container-right {\
top: 0;\
right: 0;\
border-left:1px solid #333333;\
}\
.pv-gallery-sidebar-container-bottom {\
bottom: 0;\
left: 0;\
border-top:1px solid #333333;\
}\
.pv-gallery-sidebar-container-left {\
top: 0;\
left: 0;\
border-right:1px solid #333333;\
}\
.pv-gallery-sidebar-content {\
display: inline-block;\
margin: 0;\
padding: 0;\
border: none;\
background-clip: padding-box;\
vertical-align:middle;\
position:relative;\
text-align:left;\
}\
.pv-gallery-sidebar-content-h {\
height: 100%;\
width: 90%;\
border-left: 40px solid transparent;\
border-right: 40px solid transparent;\
}\
.pv-gallery-sidebar-content-v {\
height: 90%;\
width: 100%;\
border-top: 40px solid transparent;\
border-bottom: 40px solid transparent;\
}\
.pv-gallery-sidebar-controler{\
cursor:pointer;\
position:absolute;\
background:rgba(255,255,255,0.1) no-repeat center;\
}\
.pv-gallery-sidebar-controler:hover{\
background-color:rgba(255,255,255,0.3);\
}\
.pv-gallery-sidebar-controler-pre-h,\
.pv-gallery-sidebar-controler-next-h{\
top:0;\
width:36px;\
height:100%;\
}\
.pv-gallery-sidebar-controler-pre-v,\
.pv-gallery-sidebar-controler-next-v{\
left:0;\
width:100%;\
height:36px;\
}\
.pv-gallery-sidebar-controler-pre-h {\
left: -40px;\
background-image: url("'+prefs.icons.arrowLeft+'");\
}\
.pv-gallery-sidebar-controler-next-h {\
right: -40px;\
background-image: url("'+prefs.icons.arrowRight+'");\
}\
.pv-gallery-sidebar-controler-pre-v {\
top: -40px;\
background-image: url("'+prefs.icons.arrowTop+'");\
}\
.pv-gallery-sidebar-controler-next-v {\
bottom: -40px;\
background-image: url("'+prefs.icons.arrowBottom+'");\
}\
.pv-gallery-sidebar-thumbnails-container {\
display: block;\
overflow: hidden;\
height: 100%;\
width: 100%;\
margin:0;\
border:none;\
padding:0;\
line-height:0;\
position:relative;\
}\
.pv-gallery-sidebar-thumbnails-container span{\
vertical-align:middle;\
}\
.pv-gallery-sidebar-thumbnails-container-h{\
border-left:1px solid #464646;\
border-right:1px solid #464646;\
white-space:nowrap;\
}\
.pv-gallery-sidebar-thumbnails-container-v{\
border-top:1px solid #464646;\
border-bottom:1px solid #464646;\
white-space:normal;\
}\
.pv-gallery-sidebar-thumbnails-container-top {\
padding-bottom:5px;\
}\
.pv-gallery-sidebar-thumbnails-container-right {\
padding-left:5px;\
}\
.pv-gallery-sidebar-thumbnails-container-bottom {\
padding-top:5px;\
}\
.pv-gallery-sidebar-thumbnails-container-left {\
padding-right:5px;\
}\
.pv-gallery-sidebar-thumb-container {\
display:inline-block;\
text-align: center;\
border:2px solid rgb(52,52,52);\
cursor:pointer;\
position:relative;\
padding:2px;\
font-size:0;\
line-height:0;\
white-space:nowrap;\
vertical-align: middle;\
top:0;\
left:0;\
-webkit-transition:all 0.2s ease-in-out;\
transition:all 0.2s ease-in-out;\
}\
.pv-gallery-sidebar-thumbnails-container-h  .pv-gallery-sidebar-thumb-container {\
margin:0 2px;\
height:100%;\
}\
.pv-gallery-sidebar-thumbnails-container-v  .pv-gallery-sidebar-thumb-container {\
margin:2px 0;\
width:100%;\
}\
.pv-gallery-sidebar-thumbnails_hide-span > .pv-gallery-sidebar-thumb-container {\
display:none;\
}\
.pv-gallery-sidebar-thumb-container:hover {\
border:2px solid rgb(57,149,211);\
}\
.pv-gallery-sidebar-thumb_selected {\
border:2px solid rgb(229,59,62);\
}\
.pv-gallery-sidebar-thumb_selected-top {\
top:5px;\
}\
.pv-gallery-sidebar-thumb_selected-right {\
left:-5px;\
}\
.pv-gallery-sidebar-thumb_selected-bottom {\
top:-5px;\
}\
.pv-gallery-sidebar-thumb_selected-left {\
left:5px;\
}\
.pv-gallery-sidebar-thumb-loading{\
position:absolute;\
top:0;\
left:0;\
text-align:center;\
width:100%;\
height:100%;\
display:none;\
opacity:0.6;\
background:black url("'+ prefs.icons.loading + '") no-repeat center ;\
}\
.pv-gallery-sidebar-thumb-loading:hover{\
opacity:0.8;\
}\
.pv-gallery-sidebar-thumb {\
display: inline-block;\
vertical-align: middle;\
max-width: 100% !important;\
max-height: 100% !important;\
height: auto !important;\
width: auto !important;\
}\
.pv-gallery-vertical-align-helper{\
display:inline-block;\
vertical-align:middle;\
width:0;\
height:100%;\
margin:0;\
border:0;\
padding:0;\
visibility:hidden;\
white-space:nowrap;\
background-color:red;\
}\
';
                var head=document.head;
                head.appendChild(style);
                this.globalSSheet=style.sheet;
 
                var style2=document.createElement('style');
                this.thumbVisibleStyle=style2;
                style2.type='text/css';
                head.appendChild(style2);
 
                // 让 description 的文字内容溢出用点点点(...)省略号表示
                // .pv-gallery-head-left-img-info-description {
                //      overflow: hidden;
                //     text-overflow: ellipsis;
                //     white-space: nowrap;
                //     width: 27em;
                // }
            },
 
        };
 
 
        GalleryC.prototype.Preload.prototype={//预读对象
            init:function(){
                if(!this.container){//预读的图片都仍里面
                    var div=document.createElement('div');
                    div.className='pv-gallery-preloaded-img-container';
                    div.style.display='none';
                    document.body.appendChild(div);
                    GalleryC.prototype.Preload.prototype.container=div;
                };
                this.max=prefs.gallery.max;
                this.nextNumber=0;
                this.nextEle=this.ele;
                this.preNumber=0;
                this.preEle=this.ele;
                this.direction='pre';
            },
            preload:function(){
                var ele=this.getPreloadEle();
                if(!ele){
                    //console.log('预读正常结束');
                    return;
                };
 
                //console.log('正在预读：',ele);
                var self=this;
                this.imgReady=imgReady(dataset(ele,'src'),{
                    loadEnd:function(){
                        if(self.aborted){
                            //console.log('强制终止了');
                            return;
                        };
                        dataset(ele,'preloaded','true')
                        self.container.appendChild(this);
                        self.preload();
                    },
                    time:60 * 1000,//限时一分钟，否则强制结束并开始预读下一张。
                });
            },
            getPreloadEle:function(){
                if((this.max<=this.nextNumber && this.max<=this.preNumber) || (!this.nextEle && !this.preEle)){
                    return;
                };
                var ele=this.direction=='pre'?  this.getNext() : this.getPrevious();
                if(ele && !dataset(ele,'preloaded')){
                    return ele;
                }else{
                    return this.getPreloadEle();
                };
            },
            getNext:function(){
                this.nextNumber++;
                this.direction='next';
                if(!this.nextEle)return;
                return (this.nextEle = this.oriThis.getThumSpan(false,this.nextEle));
            },
            getPrevious:function(){
                this.preNumber++;
                this.direction='pre';
                if(!this.preEle)return;
                return (this.preEle = this.oriThis.getThumSpan(true,this.preEle));
            },
            abort:function(){
                this.aborted=true;
                if(this.imgReady){
                    this.imgReady.abort();
                };
            },
        };
 
 
        GalleryC.prototype.Scrollbar.prototype={//滚动条对象
            init:function(){
                var bar=this.scrollbar.bar;
                this.shown=bar.offsetWidth!=0;
                var self=this;
                bar.addEventListener('mousedown',function(e){//点击滚动条区域，该干点什么！
                    e.preventDefault();
                    var target=e.target;
                    var handle=self.scrollbar.handle;
                    var track=self.scrollbar.track;
                    switch(target){
                        case handle:{//手柄；功能，拖动手柄来滚动窗口
                            var pro=self.isHorizontal ? ['left','clientX'] : ['top','clientY'];
                            var oHOffset=parseFloat(handle.style[pro[0]]);
                            var oClient=e[pro[1]];
 
                            var moveHandler=function(e){
                                self.scroll(oHOffset + e[pro[1]] - oClient,true);
                            };
                            var upHandler=function(){
                                document.removeEventListener('mousemove',moveHandler,true);
                                document.removeEventListener('mouseup',upHandler,true);
                            };
                            document.addEventListener('mousemove',moveHandler,true);
                            document.addEventListener('mouseup',upHandler,true);
                        }break;
                        case track:{//轨道；功能，按住不放来连续滚动一个页面的距离
                            var pro=self.isHorizontal ? ['left','offsetX','layerX','clientWidth','offsetWidth'] : ['top' , 'offsetY' ,'layerY','clientHeight','offsetHeight'];
                            var clickOffset=typeof e[pro[1]]=='undefined' ?  e[pro[2]] : e[pro[1]];
                            var handleOffset=parseFloat(handle.style[pro[0]]);
                            var handleSize=handle[pro[4]];
                            var under= clickOffset > handleOffset ;//点击在滚动手柄的下方
                            var containerSize=self.container[pro[3]];
 
                            var scroll=function(){
                                self.scrollBy(under?  (containerSize - 10) : (-containerSize + 10));//滚动一个页面距离少一点
                            };
                            scroll();
 
                            var checkStop=function(){//当手柄到达点击位置时停止
                                var handleOffset=parseFloat(handle.style[pro[0]]);
                                if(clickOffset >= handleOffset && clickOffset <= (handleOffset + handleSize)){
                                    clearTimeout(scrollTimeout);
                                    clearInterval(scrollInterval);
                                };
                            };
 
 
                            var scrollInterval;
                            var scrollTimeout=setTimeout(function(){
                                scroll();
                                scrollInterval=setInterval(function(){
                                    scroll();
                                    checkStop();
                                },120);
                                checkStop();
                            },300);
 
 
                            checkStop();
 
                            var upHandler=function(){
                                clearTimeout(scrollTimeout);
                                clearInterval(scrollInterval);
                                document.removeEventListener('mouseup',upHandler,true);
                            };
                            document.addEventListener('mouseup',upHandler,true);
                        }break;
                    };
 
                },true);
            },
            reset:function(){//判断滚动条该显示还是隐藏
 
                var pro=this.isHorizontal ? ['scrollWidth','clientWidth','width'] : ['scrollHeight','clientHeight','height'];
 
                //如果内容大于容器的content区域
 
                var scrollSize=this.container[pro[0]];
                var clientSize=this.container[pro[1]];
                var scrollMax=scrollSize - clientSize;
                this.scrollMax=scrollMax;
                if(scrollMax>0){
                    this.show();
                    var trackSize=this.scrollbar.track[pro[1]];
                    this.trackSize=trackSize;
                    var handleSize=Math.floor((clientSize/scrollSize) * trackSize);
                    handleSize=Math.max(20,handleSize);//限制手柄的最小大小;
                    this.handleSize=handleSize;
                    this.one=(trackSize-handleSize) / scrollMax;//一个像素对应的滚动条长度
                    this.scrollbar.handle.style[pro[2]]= handleSize + 'px';
                    this.scroll(this.getScrolled());
                }else{
                    this.hide();
                };
            },
            show:function(){
                if(this.shown)return;
                this.shown=true;
                this.scrollbar.bar.style.display='block';
            },
            hide:function(){
                if(!this.shown)return;
                this.shown=false;
                this.scrollbar.bar.style.display='none';
            },
            scrollBy:function(distance,handleDistance){
                this.scroll(this.getScrolled() + (handleDistance?  distance / this.one :  distance));
            },
            scrollByPages:function(num){
                this.scroll(this.getScrolled() + (this.container[(this.isHorizontal ? 'clientWidth' : 'clientHeight')] - 10) * num);
            },
            scroll:function(distance,handleDistance,transition){
                if(!this.shown)return;
 
                //滚动实际滚动条
                var _distance=distance;
                _distance=handleDistance?  distance / this.one :  distance;
                _distance=Math.max(0,_distance);
                _distance=Math.min(_distance,this.scrollMax);
 
 
                var pro=this.isHorizontal? ['left','scrollLeft'] : ['top','scrollTop'];
 
 
                //滚动虚拟滚动条
                //根据比例转换为滚动条上应该滚动的距离。
                distance=handleDistance? distance : this.one * distance;
                //处理非法值
                distance=Math.max(0,distance);//如果值小于0那么取0
                distance=Math.min(distance,this.trackSize - this.handleSize);//大于极限值，取极限值
 
                var shs=this.scrollbar.handle.style;
                var container=this.container;
                if(transition){
                    clearInterval(this.transitionInterval);
 
                    var start=0;
                    var duration=10;
 
                    var cStart=this.getScrolled();
                    var cChange=_distance-cStart;
                    var sStart=parseFloat(shs[pro[0]]);
                    var sChange=distance-sStart;
 
                    var transitionInterval=setInterval(function(){
                        var cEnd=Tween.Cubic.easeInOut(start,cStart,cChange,duration);
                        var sEnd=Tween.Cubic.easeInOut(start,sStart,sChange,duration);
 
                        container[pro[1]]=cEnd;
                        shs[pro[0]]=sEnd + 'px';
 
                        start++;
                        if(start>=duration){
                            clearInterval(transitionInterval);
                        };
                    },35);
 
                    this.transitionInterval=transitionInterval;
 
                    return;
                };
 
                shs[pro[0]]=distance + 'px';
                container[pro[1]]=_distance;
            },
            getScrolled:function(){
                return  this.container[(this.isHorizontal ? 'scrollLeft' : 'scrollTop')];
            },
        };
 
 
        //放大镜
        function MagnifierC(img,data){
            this.img=img;
            this.data=data;
            this.init();
        };
 
        MagnifierC.all=[];
        MagnifierC.styleZIndex=900000000;//全局z-index;
        MagnifierC.zoomRange=prefs.magnifier.wheelZoom.range.slice(0).sort();//升序
        MagnifierC.zoomRangeR=MagnifierC.zoomRange.slice(0).reverse();//降序
 
        MagnifierC.prototype={
            init:function(){
                this.addStyle();
                MagnifierC.all.push(this);
                var container=document.createElement('span');
 
                container.className='pv-magnifier-container';
                document.body.appendChild(container);
 
                this.magnifier=container;
 
                var imgNaturalSize={
                    h:this.img.naturalHeight,
                    w:this.img.naturalWidth,
                };
 
                this.imgNaturalSize=imgNaturalSize;
 
                var cs=container.style;
                cs.zIndex=MagnifierC.styleZIndex++;
 
 
 
                var maxDia=Math.ceil(Math.sqrt(Math.pow(1/2*imgNaturalSize.w,2) + Math.pow(1/2*imgNaturalSize.h,2)) * 2);
                this.maxDia=maxDia;
 
                var radius=prefs.magnifier.radius;
                radius=Math.min(maxDia/2,radius);
                this.radius=radius;
                var diameter=radius * 2;
                this.diameter=diameter;
 
                cs.width=diameter + 'px';
                cs.height=diameter + 'px';
                cs.borderRadius=radius+1 + 'px';
                cs.backgroundImage='url("'+ this.img.src +'")';
                cs.marginLeft= -radius +'px';
                cs.marginTop= -radius +'px';
 
                var imgPos=getContentClientRect(this.data.img);
                var wScrolled=getScrolled();
                var imgRange={//图片所在范围
                    x:[imgPos.left + wScrolled.x , imgPos.right + wScrolled.x],
                    y:[imgPos.top + wScrolled.y, imgPos.bottom + wScrolled.y],
                };
                var imgW=imgRange.x[1] - imgRange.x[0];
                var imgH=imgRange.y[1] - imgRange.y[0];
                //如果图片太小的话，进行范围扩大。
                var minSize=60;
                if(imgW < minSize){
                    imgRange.x[1] +=(minSize - imgW)/2;
                    imgRange.x[0] -=(minSize - imgW)/2;
                    imgW=minSize;
                };
                if(imgH < minSize){
                    imgRange.y[1] +=(minSize - imgH)/2;
                    imgRange.y[0] -=(minSize - imgH)/2;
                    imgH=minSize;
                };
                this.imgSize={
                    w:imgW,
                    h:imgH,
                };
                this.imgRange=imgRange;
                //console.log(this.imgRange,this.imgSize);
 
                this.setMouseRange();
 
 
                this.move({
                    pageX:imgRange.x[0],
                    pageY:imgRange.y[0],
                });
 
                this._focus=this.focus.bind(this);
                this._blur=this.blur.bind(this);
                this._move=this.move.bind(this);
                this._remove=this.remove.bind(this);
                this._pause=this.pause.bind(this);
                this._zoom=this.zoom.bind(this);
 
                if(prefs.magnifier.wheelZoom.enabled){
                    this.zoomLevel=1;
                    this.defaultDia=diameter;
                    addWheelEvent(container,this._zoom,false);
                };
 
                container.addEventListener('mouseover',this._focus,false);
                container.addEventListener('mouseout',this._blur,false);
                container.addEventListener('dblclick',this._remove,false);
                container.addEventListener('click',this._pause,false);
 
 
                document.addEventListener('mousemove',this._move,true);
            },
            addStyle:function(){
                if(MagnifierC.style)return;
                var style=document.createElement('style');
                style.type='text/css';
                MagnifierC.style=style;
                style.textContent='\
.pv-magnifier-container{\
position:absolute;\
padding:0;\
margin:0;\
background-origin:border-box;\
-moz-box-sizing:border-box;\
box-sizing:border-box;\
border:3px solid #CCCCCC;\
background:rgba(40, 40, 40, 0.9) no-repeat;\
}\
.pv-magnifier-container_focus{\
box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.7);\
}\
.pv-magnifier-container_pause{\
border-color:red;\
}\
';
                document.head.appendChild(style);
            },
            focus:function(){
                this.magnifier.classList.add('pv-magnifier-container_focus');
                this.magnifier.style.zIndex=MagnifierC.styleZIndex++;
            },
            blur:function(){
                this.magnifier.classList.remove('pv-magnifier-container_focus');
            },
            move:function(e){
                var mouseCoor={
                    x:e.pageX,
                    y:e.pageY,
                };
                var mouseRange=this.mouseRange;
                var imgRange=this.imgRange;
 
                if( !(mouseCoor.x >= mouseRange.x[0] && mouseCoor.x <= mouseRange.x[1] && mouseCoor.y >= mouseRange.y[0] && mouseCoor.y <= mouseRange.y[1]))return;//如果不再鼠标范围
                if(mouseCoor.x > imgRange.x[1]){
                    mouseCoor.x = imgRange.x[1];
                }else if(mouseCoor.x < imgRange.x[0]){
                    mouseCoor.x = imgRange.x[0];
                };
                if(mouseCoor.y > imgRange.y[1]){
                    mouseCoor.y = imgRange.y[1];
                }else if(mouseCoor.y < imgRange.y[0]){
                    mouseCoor.y = imgRange.y[0];
                };
 
                var ms=this.magnifier.style;
                ms.top= mouseCoor.y + 'px';
                ms.left= mouseCoor.x + 'px';
 
                var radius=this.radius;
                var imgSize=this.imgSize;
                var imgNaturalSize=this.imgNaturalSize;
                var px=-((mouseCoor.x-imgRange.x[0])/imgSize.w * imgNaturalSize.w) + radius +'px';
                var py=-((mouseCoor.y-imgRange.y[0])/imgSize.h * imgNaturalSize.h) + radius +'px';
                //console.log(px,py);
                ms.backgroundPosition=px + ' ' + py;
            },
            getNextZoomLevel:function(){
                var level;
                var self=this;
                if(this.zoomOut){//缩小
                    MagnifierC.zoomRangeR._find(function(value){
                        if(value < self.zoomLevel){
                            level=value;
                            return true;
                        }
                    })
                }else{
                    MagnifierC.zoomRange._find(function(value){
                        if(value > self.zoomLevel){
                            level=value;
                            return true;
                        };
                    });
                }
                return level;
            },
            zoom:function(e){
                if(e.deltaY===0)return;//非Y轴的滚动
                if(prefs.magnifier.wheelZoom.pauseFirst && !this.paused)return;
                e.preventDefault();
                if(e.deltaY < 0){//向上滚，放大；
                    if(this.diameter >= this.maxDia)return;
                    this.zoomOut=false;
                }else{
                    this.zoomOut=true;
                };
                var level=this.getNextZoomLevel();
                if(!level)return;
 
                this.zoomLevel=level;
                var diameter=this.defaultDia * level;
                if(diameter > this.maxDia){
                    diameter = this.maxDia;
                };
 
                var radius=diameter/2
                this.diameter=diameter;
                var bRadius=this.radius;
                this.radius=radius;
                this.setMouseRange();
                var ms=this.magnifier.style;
                ms.width=diameter+'px';
                ms.height=diameter+'px';
                ms.borderRadius=radius+1 + 'px';
                ms.marginLeft=-radius+'px';
                ms.marginTop=-radius+'px';
                var bBP=ms.backgroundPosition.split(' ');
                ms.backgroundPosition=parseFloat(bBP[0]) + (radius - bRadius) + 'px' + ' ' + (parseFloat(bBP[1]) + ( radius - bRadius) + 'px');
 
            },
            pause:function(){
                if(this.paused){
                    this.magnifier.classList.remove('pv-magnifier-container_pause');
                    document.addEventListener('mousemove',this._move,true);
                }else{
                    this.magnifier.classList.add('pv-magnifier-container_pause');
                    document.removeEventListener('mousemove',this._move,true);
                };
                this.paused=!this.paused;
            },
            setMouseRange:function(){
                var imgRange=this.imgRange;
                var radius=this.radius;
                this.mouseRange={//鼠标活动范围
                    x:[imgRange.x[0]-radius , imgRange.x[1] + radius],
                    y:[imgRange.y[0]-radius , imgRange.y[1] + radius],
                };
            },
            remove:function(){
                this.magnifier.parentNode.removeChild(this.magnifier);
                document.removeEventListener('mousemove',this._move,true);
                MagnifierC.all.splice(MagnifierC.all.indexOf(this),1);
            },
        };
 
        //图片窗口
        function ImgWindowC(img, data){
            this.img=img;
            this.src=img.src;
            this.data = data;
 
            this.init();
        };
 
        ImgWindowC.all=[];//所有的窗口对象
        ImgWindowC.styleZIndex=2147483647;//全局z-index;
        ImgWindowC.zoomRange=prefs.imgWindow.zoom.range.slice(0).sort();//升序
        ImgWindowC.zoomRangeR=ImgWindowC.zoomRange.slice(0).reverse();//降序
        ImgWindowC.overlayer=null;
 
 
        ImgWindowC.prototype={
            init:function(){
                var self=this;
                //图片是否已经被打开
                if(ImgWindowC.all._find(function(iwin){
                    if(iwin.src==self.src){
                        iwin.firstOpen();
                        return true;
                    };
                }))return;
 
                this.addStyle();
 
                var img=this.img;
                img.className='pv-pic-window-pic pv-pic-ignored';
                img.style.cssText='\
top:0px;\
left:0px;\
';
 
                var imgNaturalSize={
                    h:img.naturalHeight,
                    w:img.naturalWidth,
                };
                this.imgNaturalSize=imgNaturalSize;
 
                var container=document.createElement('span');
                container.style.cssText='\
cursor:pointer;\
top:0px;\
left:0px;\
';
                container.className='pv-pic-window-container';
                container.innerHTML=
                    '<span class="pv-pic-window-rotate-indicator">'+
                    '<span class="pv-pic-window-rotate-indicator-pointer"></span>'+
                    '</span>'+
                    '<span class="pv-pic-window-rotate-overlayer"></span>'+
                    '<span class="pv-pic-window-toolbar" unselectable="on">'+
                    '<span class="pv-pic-window-tb-hand pv-pic-window-tb-tool" title="抓手"></span>'+
                    '<span class="pv-pic-window-tb-tool-badge-container pv-pic-window-tb-tool-extend-menu-container">'+
                    '<span class="pv-pic-window-tb-rotate pv-pic-window-tb-tool" title="旋转"></span>'+
                    '<span class="pv-pic-window-tb-tool-badge">0</span>'+
                    '<span class="pv-pic-window-tb-tool-extend-menu pv-pic-window-tb-tool-extend-menu-rotate">'+
                    '<span class="pv-pic-window-tb-tool-extend-menu-item">0</span>'+
                    '<span class="pv-pic-window-tb-tool-extend-menu-item">+90</span>'+
                    '<span class="pv-pic-window-tb-tool-extend-menu-item">-90</span>'+
                    '</span>'+
                    '</span>'+
                    '<span class="pv-pic-window-tb-tool-badge-container pv-pic-window-tb-tool-extend-menu-container">'+
                    '<span class="pv-pic-window-tb-zoom pv-pic-window-tb-tool" title="缩放"></span>'+
                    '<span class="pv-pic-window-tb-tool-badge">0</span>'+
                    '<span class="pv-pic-window-tb-tool-extend-menu pv-pic-window-tb-tool-extend-menu-zoom">'+
                    '<span class="pv-pic-window-tb-tool-extend-menu-item">1</span>'+
                    '<span class="pv-pic-window-tb-tool-extend-menu-item">+0.1</span>'+
                    '<span class="pv-pic-window-tb-tool-extend-menu-item">-0.1</span>'+
                    '</span>'+
                    '</span>'+
                    '<span class="pv-pic-window-tb-flip-horizontal pv-pic-window-tb-command" title="水平翻转"></span>'+
                    '<span class="pv-pic-window-tb-flip-vertical pv-pic-window-tb-command" title="垂直翻转"></span>'+
                    '</span>'+
                    '<span class="pv-pic-window-close"></span>' +
                    '<span class="pv-pic-window-search" title="以图搜图"></span>' +
                    '<span class="pv-pic-window-range"></span>' +
                    '<span class="pv-pic-window-description"></span>'+
                    '<span class="pv-pic-search-state"></span>';
 
                container.insertBefore(img,container.firstChild);
 
                this.imgWindow=container;
 
                var toolMap={
                    'hand':container.querySelector('.pv-pic-window-tb-hand'),
                    'rotate':container.querySelector('.pv-pic-window-tb-rotate'),
                    'zoom':container.querySelector('.pv-pic-window-tb-zoom'),
                    'fh':container.querySelector('.pv-pic-window-tb-flip-horizontal'),
                    'fv':container.querySelector('.pv-pic-window-tb-flip-vertical'),
                };
                this.toolMap=toolMap;
 
 
                //关闭
                var closeButton=container.querySelector('.pv-pic-window-close');
                closeButton.style.cssText='top: -24px;right: 0px;';
                this.closeButton=closeButton;
                closeButton.addEventListener('click',function(e){
                    self.remove();
                },false);
 
                var searchButton=container.querySelector('.pv-pic-window-search');
                searchButton.style.cssText='top: -24px;right: 50px;';
                this.searchButton=searchButton;
                var srcs, from;
                img.onerror=function(e){
                    setSearchState(img.src+" 原图加载失败，尝试加载下一结果……");
                    var src=self.srcs.shift();
                    if(src)img.src=src;
                    else{
                        if(from<3){
                            from++;
                            searchImgByImg(self.img.src, function(srcs, index){
                                from=index;
                                self.srcs=srcs;
                                self.img.src=srcs.shift();
                            },null,null,from);
                        }else{
                            setSearchState("未找到原图");
                            setTimeout(function(){
                                setSearchState("");
                            },2000);
                        }
                    }
                };
                img.onload=function(e){
                    setSearchState("");
                }
                searchButton.addEventListener('click',function(e){
                    sortSearch();
                    searchImgByImg(self.img.src, function(srcs, index){
                        from=index;
                        self.srcs=srcs;
                        self.img.src=srcs.shift();
                    });
                },false);
 
                /**
         * 说明
         * 1、对原来的适应屏幕等功能会有影响，暂时禁用。
         * 2、分为 absolute 和默认的2种情况
         */
                if (this.data) {
                    var descriptionSpan = container.querySelector('.pv-pic-window-description');
                    // descriptionSpan.style.cssText = '\
                    //  bottom: -40px;\
                    //  left: 10px;\
                    // ';
                    descriptionSpan.textContent = this.data.description || '';
                    // descriptionSpan.style.display = this.data.description ? 'block' : 'none';
                    descriptionSpan.style.display = 'none';
                    this.descriptionSpan = descriptionSpan;
                }
 
                var toolbar=container.querySelector('.pv-pic-window-toolbar');
                toolbar.style.cssText='\
top: 0px;\
left: -45px;\
';
                this.toolbar=toolbar;
 
                this.selectedToolClass='pv-pic-window-tb-tool-selected';
 
                this.viewRange=container.querySelector('.pv-pic-window-range');
 
                this.rotateIndicator=container.querySelector('.pv-pic-window-rotate-indicator');
                this.rotateIPointer=container.querySelector('.pv-pic-window-rotate-indicator-pointer');
                this.rotateOverlayer=container.querySelector('.pv-pic-window-rotate-overlayer');
 
 
                this.hKeyUp=true;
                this.rKeyUp=true;
                this.zKeyUp=true;
 
                this.spaceKeyUp=true;
                this.ctrlKeyUp=true;
                this.altKeyUp=true;
                this.shiftKeyUp=true;
 
                //缩放工具的扩展菜单
                container.querySelector('.pv-pic-window-tb-tool-extend-menu-zoom').addEventListener('click',function(e){
                    var target=e.target;
                    var text=target.textContent;
                    var value;
                    switch(text){
                        case '1':{
                            value=1;
                        }break;
                        case '+0.1':{
                            value=self.zoomLevel + 0.1;
                        }break;
                        case '-0.1':{
                            value=self.zoomLevel - 0.1;
                        }break;
                    };
                    if(typeof value!='undefined'){
                        self.zoom(value,{x:0,y:0});
                    };
                },true);
 
                //旋转工具的扩展菜单
                container.querySelector('.pv-pic-window-tb-tool-extend-menu-rotate').addEventListener('click',function(e){
                    var target=e.target;
                    var text=target.textContent;
                    var value;
                    function convert(deg){
                        return deg * Math.PI/180;
                    };
 
                    switch(text){
                        case '0':{
                            value=0;
                        }break;
                        case '+90':{
                            value=self.rotatedRadians + convert(90);
                        }break;
                        case '-90':{
                            value=self.rotatedRadians - convert(90);
                        }break;
                    };
 
                    var PI=Math.PI;
                    if(typeof value!='undefined'){
                        if(value>=2*PI){
                            value-=2*PI;
                        }else if(value<0){
                            value+=2*PI;
                        };
                        self.rotate(value,true);
                    };
                },true);
 
                toolbar.addEventListener('mousedown',function(e){//鼠标按下选择工具
                    self.toolbarEventHandler(e);
                },false);
 
 
                toolbar.addEventListener('dblclick',function(e){//鼠标双击工具
                    self.toolbarEventHandler(e);
                },false);
 
 
                //阻止浏览器对图片的默认控制行为
                img.addEventListener('mousedown',function(e){
                    e.preventDefault();
                },false);
 
 
                container.addEventListener('mousedown',function(e){//当按下的时，执行平移，缩放，旋转操作
                    self.imgWindowEventHandler(e);
                },false);
 
                container.addEventListener('click',function(e){//阻止opera ctrl+点击保存图片
                    self.imgWindowEventHandler(e);
                },false);
 
                if(prefs.imgWindow.zoom.mouseWheelZoom){//是否使用鼠标缩放
                    addWheelEvent(container,function(e){//滚轮缩放
                        self.imgWindowEventHandler(e);
                    },false);
                };
 
 
                if(prefs.imgWindow.overlayer.shown){//是否显示覆盖层
                    var overlayer=ImgWindowC.overlayer;
                    if(!overlayer){
                        var overlayer=document.createElement('span');
                        ImgWindowC.overlayer=overlayer;
                        overlayer.className='pv-pic-window-overlayer';
                        document.body.appendChild(overlayer);
                        overlayer.style.backgroundColor=prefs.imgWindow.overlayer.color;
                    };
                    overlayer.style.display='block';
                };
 
                //是否点击图片外部关闭
                if(prefs.imgWindow.close.clickOutside.trigger){
                    var clickOutside=function(e){
                        var target=e.target;
                        if(!container.contains(target)){
                            self.remove();
                        };
                    };
                    this.clickOutside=clickOutside;
                    document.addEventListener(prefs.imgWindow.close.clickOutside.trigger,clickOutside,true);
                };
 
                //是否双击图片本身关闭
                if(prefs.imgWindow.close.dblClickImgWindow){
                    var dblClickImgWindow=function(e){
                        var target=e.target;
                        if(target==container || target==img || target==self.rotateOverlayer){
                            self.remove();
                        };
                    };
                    container.addEventListener('dblclick',dblClickImgWindow,true);
                };
 
 
                document.body.appendChild(container);
                ImgWindowC.all.push(this);
 
                this._blur=this.blur.bind(this);
                this._focusedKeydown=this.focusedKeydown.bind(this);
                this._focusedKeyup=this.focusedKeyup.bind(this);
 
                this.rotatedRadians=0;//已经旋转的角度
                this.zoomLevel=1;//缩放级别
                this.setToolBadge('zoom',1);
 
                //选中默认工具
                this.selectTool(prefs.imgWindow.defaultTool);
 
                this.firstOpen();
            },
 
 
            addStyle:function(){
                if(ImgWindowC.style)return;
                var style=document.createElement('style');
                ImgWindowC.style=style;
                style.textContent='\
.pv-pic-window-container {\
position: absolute;\
background-color: rgba(40,40,40,0.9);\
padding: 8px;\
border: 5px solid #ccc;\
line-height: 0;\
text-align: left;\
box-sizing: content-box;\
}\
.pv-pic-window-container_focus {\
box-shadow: 0 0 10px rgba(0,0,0,0.6);\
box-sizing: content-box;\
}\
.pv-pic-window-close,\
.pv-pic-window-search,\
.pv-pic-window-toolbar,\
.pv-pic-window-tb-tool-extend-menu{\
-webkit-transition: opacity 0.2s ease-in-out;\
transition: opacity 0.2s ease-in-out;\
}\
.pv-pic-window-toolbar {\
position: absolute;\
background-color: #535353;\
padding: 0;\
opacity: 0.9;\
display: none;\
cursor: default;\
-o-user-select: none;\
-webkit-user-select: none;\
-moz-user-select: -moz-none;\
user-select: none;\
}\
.pv-pic-window-toolbar:hover {\
opacity: 1;\
}\
.pv-pic-window-toolbar_focus {\
display: block;\
}\
.pv-pic-window-close {\
cursor: pointer;\
position: absolute;\
right: 0px;\
top: -24px;\
background: url("'+prefs.icons.close+'") no-repeat center bottom;\
height: 17px;\
width: 46px;\
opacity: 0.9;\
border:none;\
padding:0;\
padding-top:2px;\
background-color:#1771FF;\
display: none;\
}\
.pv-pic-window-close:hover {\
background-color:red;\
opacity: 1;\
}\
.pv-pic-window-close_focus {\
display: block;\
}\
.pv-pic-window-search {\
cursor: pointer;\
position: absolute;\
right: 50px;\
top: -24px;\
background: url("'+prefs.icons.searchBtn+'") no-repeat center bottom;\
height: 17px;\
width: 46px;\
opacity: 0.9;\
border:none;\
padding:0;\
padding-top:2px;\
background-color:#1771FF;\
display: none;\
}\
.pv-pic-window-search:hover {\
background-color:red;\
opacity: 1;\
}\
.pv-pic-window-search_focus {\
display: block;\
}\
.pv-pic-window-description {\
margin-top: 20px;\
min-height: 20px;\
}\
.pv-pic-search-state {\
top: 10px;\
left: 10px;\
display: block;\
position: absolute;\
z-index: 1;\
color: #ffff00;\
width: 350px;\
font-size: large;\
text-shadow: 1px 0 0 #000,-1px 0 0 #000,0 1px 0 #000,0 -1px 0 #000;\
-webkit-text-shadow:#000 1px 0 0,#000 0 1px 0,#000 -1px 0 0,#000 0 -1px 0;\
-moz-text-shadow:#000 1px 0 0,#000 0 1px 0,#000 -1px 0 0,#000 0 -1px 0;\
}\
.pv-pic-window-pic {\
position: relative;\
display:inline-block;\/*opera把图片设置display:block会出现渲染问题，会有残影，还会引发其他各种问题，吓尿*/\
max-width:none;\
min-width:none;\
max-height:none;\
min-height:none;\
padding:0;\
margin:0;\
border:none;\
vertical-align:middle;\
}\
.pv-pic-window-pic_focus {\
box-shadow: 0 0 6px black;\
}\
.pv-pic-window-tb-tool,\
.pv-pic-window-tb-command{\
box-sizing:content-box;\
-moz-box-sizing:content-box;\
-webkit-box-sizing:content-box;\
height: 24px;\
width: 24px;\
padding: 12px 8px 6px 6px;\
margin:0;\
display: block;\
background: transparent no-repeat center;\
cursor: pointer;\
position: relative;\
border: none;\
border-left: 2px solid transparent;\
border-bottom: 1px solid #868686;\
background-origin: content-box;\
}\
.pv-pic-window-toolbar > span:last-child {\
border-bottom: none;\
}\
.pv-pic-window-tb-tool:hover,\
.pv-pic-window-tb-command:hover{\
border-left: 2px solid red;\
}\
.pv-pic-window-tb-tool-selected{\
box-shadow: inset 0 21px 0 rgba(255,255,255,0.3) ,inset 0 -21px 0 rgba(0,0,0,0.3);\
border-left:2px solid #1771FF;\
}\
.pv-pic-window-tb-hand {\
background-image: url("'+prefs.icons.hand+'");\
}\
.pv-pic-window-tb-rotate {\
background-image: url("'+prefs.icons.rotate+'");\
}\
.pv-pic-window-tb-zoom {\
background-image: url("'+prefs.icons.zoom+'");\
}\
.pv-pic-window-tb-flip-horizontal {\
background-image: url("'+prefs.icons.flipHorizontal+'");\
}\
.pv-pic-window-tb-flip-vertical {\
background-image: url("'+prefs.icons.flipVertical+'");\
}\
.pv-pic-window-tb-tool-badge-container {\
display: block;\
position: relative;\
}\
.pv-pic-window-tb-tool-badge {\
position: absolute;\
top: -3px;\
right: 1px;\
font-size: 10px;\
line-height: 1.5;\
padding: 0 3px;\
background-color: #F93;\
border-radius: 50px;\
opacity: 0.5;\
color: black;\
}\
.pv-pic-window-tb-tool-extend-menu{\
position:absolute;\
top:0;\
margin-left:-1px;\
background-color:#535353;\
display:none;\
left:40px;\
color:#C3C3C3;\
font-size:12px;\
text-shadow:0px -1px 0px black;\
opacity:0.7;\
}\
.pv-pic-window-tb-tool-extend-menu:hover{\
opacity:0.9;\
}\
.pv-pic-window-tb-tool-extend-menu-item{\
display:block;\
line-height:1.5;\
text-align:center;\
padding:10px;\
cursor:pointer;\
border: none;\
border-right: 2px solid transparent;\
border-bottom: 1px solid #868686;\
}\
.pv-pic-window-tb-tool-extend-menu-item:last-child{\
border-bottom: none;\
}\
.pv-pic-window-tb-tool-extend-menu-item:hover{\
border-right:2px solid red;\
}\
.pv-pic-window-tb-tool-extend-menu-item:active{\
padding:11px 9px 9px 11px;\
}\
.pv-pic-window-tb-tool-extend-menu-container:hover .pv-pic-window-tb-tool{\
border-left:2px solid red;\
}\
.pv-pic-window-tb-tool-extend-menu-container:hover .pv-pic-window-tb-tool-extend-menu{\
display:block;\
}\
.pv-pic-window-tb-tool-extend-menu-container::after{\
content:"";\
position:absolute;\
right:1px;\
bottom:2px;\
width:0;\
height:0;\
padding:0;\
margin:0;\
border:3px solid #C3C3C3;\
border-top-color:transparent;\
border-left-color:transparent;\
opacity:0.5;\
}\
.pv-pic-window-overlayer{\
height:100%;\
width:100%;\
position:fixed;\
z-index:999999999;\
top:0;\
left:0;\
}\
.pv-pic-window-rotate-indicator{\
display:none;\
position:fixed;\
width:250px;\
height:250px;\
padding:10px;\
margin-top:-135px;\
margin-left:-135px;\
background:transparent url("'+ prefs.icons.rotateIndicatorBG +'") no-repeat center;\
}\
.pv-pic-window-rotate-indicator-pointer{\
display:block;\
margin-left:auto;\
margin-right:auto;\
background:transparent url("'+ prefs.icons.rotateIndicatorPointer +'") no-repeat center;\
width:60px;\
height:240px;\
position:relative;\
top:5px;\
transform:rotate(0.1deg);\
}\
.pv-pic-window-rotate-overlayer{/*当切换到旋转工具的时候显示这个覆盖层，然后旋转指示器显示在这个覆盖层的下面*/\
position:absolute;\
top:0;\
bottom:0;\
left:0;\
right:0;\
display:none;\
background-color:transparent;\
}\
.pv-pic-window-range{\
position:absolute;\
border:none;\
width:100px;\
height:100px;\
box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.8);\
display:none;\
padding:0;\
background-color:rgba(255, 0, 0, 0.150);\
}\
';
                document.head.appendChild(style);
            },
 
            firstOpen:function(){
                this.focus();
                var imgWindow=this.imgWindow;
                var scrolled=getScrolled();
                imgWindow.style.left=-5 + scrolled.x + 'px';
                imgWindow.style.top=-5 + scrolled.y + 'px';
 
                if(prefs.imgWindow.fitToScreen){
                    this.fitToScreen();
                    this.center(true,true);
                }else{
                    //window的尺寸
                    var wSize=getWindowSize();
                    //空隙
                    wSize.h -= 16;
                    wSize.w -= 16;
 
                    var imgWindowCS=unsafeWindow.getComputedStyle(imgWindow);
 
                    var rectSize={
                        h:parseFloat(imgWindowCS.height),
                        w:parseFloat(imgWindowCS.width),
                    };
 
                    this.center(rectSize.w <= wSize.w , rectSize.h <= wSize.h);
                };
 
                this.keepScreenInside();
            },
            keepScreenInside:function(){//保持按钮在屏幕里面.
                var imgWindow=this.imgWindow;
                var imgWindowFullSize={
                    h:imgWindow.offsetHeight,
                    w:imgWindow.offsetWidth,
                };
 
                var windowSize=getWindowSize();
 
                function keepSI(obj,offsetDirection,defaultValue, out){
                    var objRect=obj.getBoundingClientRect();
                    var objStyle=obj.style;
 
                    while(offsetDirection.length){
                        var oD=offsetDirection[0];
                        var oDV=defaultValue[0];
                        offsetDirection.shift();
                        defaultValue.shift();
                        var oValue=parseFloat(objStyle[oD]);
                        var newValue;
                        switch(oD){
                            case 'top':{
                                newValue=oValue - objRect.top;
                                if(objRect.top<0){
                                    newValue=Math.min(newValue,imgWindowFullSize.h);
                                }else{
                                    newValue=Math.max(newValue,oDV);
                                };
                            }break;
                            case 'right':{
                                newValue=oValue + (objRect.right - windowSize.w);
                                if(objRect.right > windowSize.w){//屏幕外
                                    newValue=Math.min(newValue,imgWindowFullSize.w);
                                }else{
                                    newValue=Math.max(newValue,oDV);
                                };
                            }break;
                            case 'bottom':{
                                newValue=oValue + (objRect.bottom - windowSize.h);
                                if(objRect.bottom > windowSize.h){//屏幕外
                                    newValue=Math.min(newValue,imgWindowFullSize.h);
                                }else{
                                    newValue=Math.max(newValue,oDV);
                                };
                            }break;
                            case 'left':{
                                newValue=oValue - objRect.left;
                                if(objRect.left<0){
                                    newValue=Math.min(newValue,imgWindowFullSize.w);
                                }else{
                                    newValue=Math.max(newValue,oDV);
                                }
                            }break;
                        };
                        //console.log(newValue);
                        objStyle[oD]=newValue + 'px';
 
                    };
                };
 
                keepSI(this.closeButton,['top','right'],[-24,0]);
                keepSI(this.searchButton,['top','right'],[-24,50]);
                keepSI(this.toolbar,['top','left'],[0,-45]);
 
                // 保持注释在图片里面
                // keepSI(this.descriptionSpan,['bottom', 'left'],[-40, 10]);
            },
            fitToScreen:function(){
                var wSize=getWindowSize();
                //空隙
                wSize.h -= 16;
                wSize.w -= 16;
 
                var imgWindow=this.imgWindow;
                var imgWindowCS=unsafeWindow.getComputedStyle(imgWindow);
                var rectSize={
                    h:parseFloat(imgWindowCS.height),
                    w:parseFloat(imgWindowCS.width),
                };
 
                var size;
                if(rectSize.w - wSize.w>0 || rectSize.h - wSize.h>0){//超出屏幕，那么缩小。
                    if(rectSize.w/rectSize.h > wSize.w/wSize.h){
                        size={
                            w:wSize.w,
                            h:wSize.w / (rectSize.w/rectSize.h),
                        };
                    }else{
                        size={
                            h:wSize.h,
                            w:wSize.h * (rectSize.w/rectSize.h),
                        }
                    };
 
                    this.zoom(this.getRotatedImgCliSize(size).w/this.imgNaturalSize.w);
                };
            },
            center:function(horizontal,vertical){
                if(!horizontal && !vertical)return;
                var wSize=getWindowSize();
                var imgWindow=this.imgWindow;
                var scrolled=getScrolled();
                if(horizontal)imgWindow.style.left= (wSize.w - imgWindow.offsetWidth)/2 + scrolled.x +'px';
                if(vertical)imgWindow.style.top= (wSize.h - imgWindow.offsetHeight)/2 + scrolled.y +'px';
            },
 
 
            move:function(e){
                this.working=true;
                var cursor=this.cursor;
                this.changeCursor('handing');
 
                var mouseCoor={
                    x:e.pageX,
                    y:e.pageY,
                };
                var imgWindow=this.imgWindow;
                var imgWStyle=imgWindow.style;
                var oriOffset={
                    left:parseFloat(imgWStyle.left),
                    top:parseFloat(imgWStyle.top),
                };
                var self=this;
                var moveHandler=function(e){
                    imgWStyle.left=oriOffset.left+ e.pageX-mouseCoor.x +'px';
                    imgWStyle.top=oriOffset.top + e.pageY-mouseCoor.y +'px';
                    self.keepScreenInside();
                };
                var mouseupHandler=function(){
                    e.preventDefault();
                    self.changeCursor(cursor);
                    self.working=false;
                    if(self.tempHand && self.spaceKeyUp){//如果是临时切换到抓手工具，平移完成后返回上个工具
                        self.tempHand=false;
                        self.changeCursor(self.selectedTool);
                    };
                    document.removeEventListener('mousemove',moveHandler,true);
                    document.removeEventListener('mouseup',mouseupHandler,true);
                };
                document.addEventListener('mousemove',moveHandler,true);
                document.addEventListener('mouseup',mouseupHandler,true);
            },
            rotate:function(origin,topLeft){
 
                var img=this.img;
                var imgWindow=this.imgWindow;
 
                var iTransform=img.style[support.cssTransform].replace(/rotate\([^)]*\)/i,'');
 
                var imgWindowCS=unsafeWindow.getComputedStyle(imgWindow);
                var imgRectSize={
                    h:parseFloat(imgWindowCS.height),
                    w:parseFloat(imgWindowCS.width),
                };
 
                var rectOffset={
                    top:parseFloat(imgWindow.style.top),
                    left:parseFloat(imgWindow.style.left),
                };
 
                var imgSize={
                    h:img.clientHeight,
                    w:img.clientWidth,
                };
 
                var imgOffset={
                    top:parseFloat(img.style.top),
                    left:parseFloat(img.style.left),
                };
 
                var self=this;
                var PI=Math.PI;
 
                var rotate=function (radians){
                    if(self.rotatedRadians==radians)return;
                    img.style[support.cssTransform] = ' rotate('+ radians +'rad) ' + iTransform;//旋转图片
                    self.rotateIPointer.style[support.cssTransform]='rotate('+ radians +'rad)';//旋转指示器
 
                    self.rotatedRadians=radians;
                    self.setToolBadge('rotate',radians/(PI/180));
 
                    var afterimgRectSize=self.getRotatedImgRectSize( radians, imgSize );
                    imgWindow.style.width=afterimgRectSize.w +'px';
                    imgWindow.style.height=afterimgRectSize.h + 'px';
 
                    if(!topLeft){
                        self.setImgWindowOffset(rectOffset,imgRectSize,afterimgRectSize);
                    };
 
                    self.setImgOffset(imgOffset,imgRectSize,afterimgRectSize);
                    self.keepScreenInside();
                };
 
 
                if(typeof origin=='number'){
                    rotate(origin);
                    return;
                };
 
 
                this.working=true;
 
                var lastRotatedRadians=this.rotatedRadians;
                this.shiftKeyUp=true;
                var shiftRotateStep=prefs.imgWindow.shiftRotateStep / (180/Math.PI);//转成弧度
 
                var moveHandler=function(e){
                    var radians=lastRotatedRadians + Math.atan2( e.clientY - origin.y, e.clientX - origin.x );
                    if(radians>=2*PI){
                        radians-=2*PI;
                    }else if(radians<0){
                        radians+=2*PI;
                    };
 
                    if(!self.shiftKeyUp){//如果按下了shift键，那么步进缩放
                        radians -= radians % shiftRotateStep;
                        radians += shiftRotateStep;
                    };
                    rotate(radians);
                };
 
                var mouseupHandler=function(){
                    self.working=false;
                    self.rotateIndicator.style.display='none';
                    document.removeEventListener('mousemove',moveHandler,true);
                    document.removeEventListener('mouseup',mouseupHandler,true);
                };
 
                document.addEventListener('mousemove',moveHandler,true);
                document.addEventListener('mouseup',mouseupHandler,true);
            },
            convertToValidRadians:function(radians){
                //转成0-90的等价角度。
                var PI=Math.PI;
                if(radians > PI){
                    radians = 2*PI - radians;
                };
                if(radians > 1/2*PI){
                    radians = PI - radians;
                };
                return radians;
            },
            getRotatedImgRectSize:function( radians, imgSize ){//通过旋转后的角度和图片的大小，求虚拟矩形的大小
                imgSize= imgSize ? imgSize :{
                    h:this.img.clientHeight,
                    w:this.img.clentWidth,
                };
 
                if(typeof radians==='undefined'){
                    radians = this.rotatedRadians;
                };
 
                radians=this.convertToValidRadians(radians);
 
                return {
                    h:this.notExponential(imgSize.h* Math.cos(radians) + imgSize.w * Math.sin(radians)),
                    w:this.notExponential(imgSize.h* Math.sin(radians) + imgSize.w * Math.cos(radians)),
                };
            },
            getRotatedImgCliSize:function(rectSize,radians){//通过虚拟矩形的大小和图片的旋转角度，求图片的大小
 
                if(typeof radians==='undefined'){
                    radians = this.rotatedRadians;
                };
 
                radians=this.convertToValidRadians(radians);
 
                if(radians==0){
                    //radians=Math.PI/180 * 1/100;
                    return rectSize;
                };
 
                var h=(rectSize.h-rectSize.w * Math.tan(radians))/(Math.cos(radians)-Math.sin(radians)*Math.tan(radians));
                var w=(rectSize.h - h*Math.cos(radians))/Math.sin(radians);
                return {
                    h:h,
                    w:w,
                };
 
            },
            setImgOffset:function(oriOffset,bImgSize,aImgSize){
                var imgStyle=this.img.style;
 
                //避免出现指数形式的数字和单位相加，导致变成无效值
                var top=this.notExponential(oriOffset.top + (aImgSize.h-bImgSize.h)*1/2) + 'px';
                var left=this.notExponential(oriOffset.left + (aImgSize.w-bImgSize.w)*1/2)  + 'px';
                imgStyle.top= top;
                imgStyle.left= left;
            },
            setImgWindowOffset:function(oriOffset,bImgWindowSize,aImgWidnowSize,ratio){
                ratio= ratio? ratio : {x:1/2,y:1/2};
                var imgWindowStyle=this.imgWindow.style;
                var top=oriOffset.top - (aImgWidnowSize.h-bImgWindowSize.h)*ratio.y + 'px';
                var left=oriOffset.left - (aImgWidnowSize.w-bImgWindowSize.w)*ratio.x + 'px';
                imgWindowStyle.top= top;
                imgWindowStyle.left= left;
            },
            zoom:function(e,ratio){//e可能是undefined,可能是事件对象，可能是直接的缩放级别数字
                var imgWindow=this.imgWindow;
                var imgWindowCS=unsafeWindow.getComputedStyle(imgWindow);
                var imgRectSize={
                    h:parseFloat(imgWindowCS.height),
                    w:parseFloat(imgWindowCS.width),
                };
 
                var rectOffset={
                    top:parseFloat(imgWindow.style.top),
                    left:parseFloat(imgWindow.style.left),
                };
 
                var img=this.img;
                var self=this;
 
                var zoom=function(level){//缩放到指定级别
                    if(typeof level=='undefined' || level<0 || level==self.zoomLevel)return;
 
                    var afterImgSize={
                        h:self.imgNaturalSize.h * level,
                        w:self.imgNaturalSize.w * level,
                    };
                    img.width=afterImgSize.w;
                    img.height=afterImgSize.h;
 
                    var afterimgRectSize=self.getRotatedImgRectSize( self.rotatedRadians, afterImgSize );
                    //console.log(afterimgRectSize);
                    imgWindow.style.width=afterimgRectSize.w +'px';
                    imgWindow.style.height=afterimgRectSize.h + 'px';
                    self.setImgWindowOffset(rectOffset,imgRectSize,afterimgRectSize,ratio);
                    self.setImgOffset({top:0,left:0},afterImgSize,afterimgRectSize);//如果旋转了，调整偏移
                    self.zoomLevel=level;
                    self.setToolBadge('zoom',level);
                    self.keepScreenInside();
                };
 
                if(typeof e!='object'){
                    ratio=ratio? ratio : {
                        x:1/2,
                        y:1/2,
                    };
                    zoom(e);
                    return;
                };
 
                this.working=true;
 
                ratio=this.getZoomRatio({
                    x:e.clientX,
                    y:e.clientY,
                });
 
 
                var moved;
                var lastPageX=e.pageX;
                var currentLevel=this.zoomLevel;
                var moveFired=0;
                var moveHandler=function(e){
                    moveFired++
                    if(moveFired < 2){//有时候点击的时候不小心会触发一发move
                        return;
                    };
                    moved=true;
                    var pageX=e.pageX;
                    var level;
                    if(pageX > lastPageX){//向右移，zoomin扩大
                        self.changeCursor('zoom',false);
                        level=0.05;
                    }else{//向左移，zoomout缩小
                        self.changeCursor('zoom',true);
                        level=-0.05;
                    };
                    lastPageX=pageX;
                    currentLevel += level;
                    zoom(currentLevel);
                };
 
                var mouseupHandler=function(e){
                    self.working=false;
                    document.removeEventListener('mousemove',moveHandler,true);
                    document.removeEventListener('mouseup',mouseupHandler,true);
 
                    var level=self.getNextZoomLevel();
 
                    if(self.zoomOut && self.altKeyUp){
                        self.zoomOut=false;
                    };
 
                    if(!moved){//如果没有平移缩放。
                        zoom(level);
                    };
 
                    self.changeCursor('zoom',self.zoomOut);
 
                    if(self.tempZoom && self.ctrlKeyUp && self.altKeyUp){
                        self.tempZoom=false;
                        self.changeCursor(self.selectedTool);
                    };
 
                };
 
                document.addEventListener('mousemove',moveHandler,true);
                document.addEventListener('mouseup',mouseupHandler,true);
            },
            getNextZoomLevel:function(){
                var level;
                var self=this;
                if(this.zoomOut){//缩小
                    ImgWindowC.zoomRangeR._find(function(value){
                        if(value < self.zoomLevel){
                            level=value;
                            return true;
                        }
                    })
                }else{
                    ImgWindowC.zoomRange._find(function(value){
                        if(value > self.zoomLevel){
                            level=value;
                            return true;
                        };
                    });
                }
                return level;
            },
            getZoomRatio:function(mouseCoor){
                var ibcRect=this.img.getBoundingClientRect();
                var ratio={
                    x:(mouseCoor.x-ibcRect.left)/ibcRect.width,
                    y:(mouseCoor.y-ibcRect.top)/ibcRect.height,
                };
                if(ratio.x<0){
                    ratio.x=0
                }else if(ratio.x>1){
                    ratio.x=1
                };
                if(ratio.y<0){
                    ratio.y=0
                }else if(ratio.y>1){
                    ratio.y=1
                };
                return ratio;
            },
            aerialView:function(e){
                this.working=true;
                //记住现在的缩放比例
                var cLevel=this.zoomLevel;
 
                var wSize=getWindowSize();
                wSize.h -= 16;
                wSize.w -= 16;
 
                var imgWindow=this.imgWindow;
                var imgWindowCS=unsafeWindow.getComputedStyle(imgWindow);
                var rectSize={
                    h:parseFloat(imgWindowCS.height),
                    w:parseFloat(imgWindowCS.width),
                };
                var rectRatio=rectSize.h/rectSize.w;
                var windowRatio=wSize.h/wSize.w;
 
                var size;
                var rangeSize={};
                if(rectRatio > windowRatio){
                    size={
                        h:wSize.h,
                        w:wSize.h / rectRatio,
                    };
                    rangeSize.h=Math.min(wSize.h *  (size.h / rectSize.h), size.h);
                    rangeSize.w=Math.min(rangeSize.h / windowRatio , size.w);
                }else{
                    size={
                        w:wSize.w,
                        h:wSize.w * rectRatio,
                    };
                    rangeSize.w=Math.min(wSize.w *  (size.w / rectSize.w), size.w);
                    rangeSize.h=Math.min(rangeSize.w * windowRatio , size.h);
                };
 
 
                this.zoom(this.getRotatedImgCliSize(size).w/this.imgNaturalSize.w);
 
                this.center(true,true);
 
                this.keepScreenInside();
 
                var viewRange=this.viewRange;
                var vRS=viewRange.style;
                vRS.display='block';
                vRS.height=rangeSize.h + 'px';
                vRS.width=rangeSize.w + 'px';
                vRS.top=0 + 'px';
                vRS.left=0 + 'px';
 
 
 
                var viewRangeRect=viewRange.getBoundingClientRect();
                var scrolled=getScrolled();
                var viewRangeCenterCoor={
                    x:viewRangeRect.left + scrolled.x + 1/2 * rangeSize.w,
                    y:viewRangeRect.top + scrolled.y + 1/2 * rangeSize.h,
                };
 
                var self=this;
 
                var moveRange={
                    x:[8,8+size.w-rangeSize.w],
                    y:[8,8+size.h-rangeSize.h]
                };
 
 
                function setViewRangePosition(pageXY){
                    var top=pageXY.y - viewRangeCenterCoor.y;
                    var left=pageXY.x - viewRangeCenterCoor.x;
                    if(top<=moveRange.y[0]){
                        top=moveRange.y[0];
                    }else if(top>=moveRange.y[1]){
                        top=moveRange.y[1];
                    };
                    vRS.top= top + 'px';
                    if(left<=moveRange.x[0]){
                        left=moveRange.x[0];
                    }else if(left>=moveRange.x[1]){
                        left=moveRange.x[1];
                    };
                    vRS.left= left + 'px';
                };
 
                setViewRangePosition({
                    x:e.pageX,
                    y:e.pageY,
                });
 
                var moveHandler=function(e){
                    setViewRangePosition({
                        x:e.pageX,
                        y:e.pageY,
                    });
                };
 
                var mouseupHandler=function(){
                    self.working=false;
                    viewRange.style.display='none';
                    self.zoom(cLevel);
                    var scrolled=getScrolled();
                    imgWindow.style.top= -13 -  rectSize.h * ((parseFloat(vRS.top) - moveRange.y[0])/size.h) + scrolled.y +'px';
                    imgWindow.style.left= -13 - rectSize.w * ((parseFloat(vRS.left) - moveRange.x[0])/size.w) + scrolled.x +'px';
 
                    //说明图片的高度没有屏幕高，居中
                    //说明图片的宽度没有屏幕宽，居中
                    self.center(rangeSize.w == size.w , rangeSize.h == size.h);
 
                    self.keepScreenInside();
 
                    document.removeEventListener('mousemove',moveHandler,true);
                    document.removeEventListener('mouseup',mouseupHandler,true);
                };
                document.addEventListener('mousemove',moveHandler,true);
                document.addEventListener('mouseup',mouseupHandler,true);
            },
            setToolBadge:function(tool,content){
                var scale=0;
                switch(tool){
                    case 'zoom':{
                        scale=2;
                    }break;
                    case 'rotate':{
                        scale=1;
                    }break;
                    default:break;
                }
                content=typeof content=='string'? content : content.toFixed(scale);
                this.toolMap[tool].nextElementSibling.textContent=content;
            },
            notExponential:function(num){//不要转为指数形势
                if(num>0){
                    if(num >= 999999999999999934463){
                        return  999999999999999934463;
                    }else if(num <= 0.000001){
                        return 0.000001;
                    };
                }else if(num < 0){
                    if(num >= -0.000001){
                        return -0.000001;
                    }else if(num <= -999999999999999934463){
                        return -999999999999999934463
                    };
                };
 
                return num;
            },
 
            blur:function(e){
                if(!this.focused)return;
                var imgWindow =this.imgWindow;
                //点击imgWinodw的外部的时候失去焦点
                if(e!==true && imgWindow.contains(e.target))return;
                imgWindow.classList.remove('pv-pic-window-container_focus');
                this.toolbar.classList.remove('pv-pic-window-toolbar_focus');
                this.closeButton.classList.remove('pv-pic-window-close_focus');
                this.searchButton.classList.remove('pv-pic-window-search_focus');
                this.img.classList.remove('pv-pic-window-pic_focus');
                document.removeEventListener('mousedown',this._blur,true);
                document.removeEventListener('keydown',this._focusedKeydown,true);
                document.removeEventListener('keyup',this._focusedKeyup,true);
                this.changeCursor('default');
                ImgWindowC.selectedTool=this.selectedTool;
                this.focused=false;
            },
            focus:function(){
                if(this.focused)return;
                this.imgWindow.classList.add('pv-pic-window-container_focus');
                this.toolbar.classList.add('pv-pic-window-toolbar_focus');
                this.closeButton.classList.add('pv-pic-window-close_focus');
                this.searchButton.classList.add('pv-pic-window-search_focus');
                this.img.classList.add('pv-pic-window-pic_focus');
                this.imgWindow.style.zIndex= ImgWindowC.styleZIndex;
                this.zIndex=ImgWindowC.styleZIndex;
                ImgWindowC.styleZIndex ++;
                document.addEventListener('keydown',this._focusedKeydown,true);
                document.addEventListener('keyup',this._focusedKeyup,true);
                document.addEventListener('mousedown',this._blur,true);
 
                //还原鼠标样式。
                this.changeCursor(this.selectedTool);
 
                if(prefs.imgWindow.syncSelectedTool && ImgWindowC.selectedTool){
                    this.selectTool(ImgWindowC.selectedTool);
                };
 
                this.focused=true;
            },
            focusedKeyup:function(e){
                var keyCode=e.keyCode;
                var valid=[32,18,16,72,17,72,82,90,67];
                if(valid.indexOf(keyCode)==-1)return;
 
                e.preventDefault();
 
                switch(keyCode){
                    case 32:{//空格键，临时切换到移动
                        this.spaceKeyUp=true;
                        if(!this.tempHand)return;//如果之前没有临时切换到抓手工具（当已经在工作的时候，按下空格不会临时切换到抓手工具）
                        if(!this.working){//松开按键的时候，没有在继续平移了。
                            this.tempHand=false;
                            this.changeCursor(this.selectedTool);
                        };
                    }break;
                    case 18:{//alt键盘切换缩小放大。
                        this.altKeyUp=true;
                        if(!this.zoomOut)return;
                        if(!this.working){
                            this.zoomOut=false;
                            this.changeCursor('zoom');
                            if(this.tempZoom && this.ctrlKeyUp){
                                this.tempZoom=false;
                                this.changeCursor(this.selectedTool);
                            };
                        };
                    }break;
                    case 16:{//shift键，旋转的时候按住shift键，步进缩放。
                        this.shiftKeyUp=true;
                    }break;
                    case 17:{//ctrl键
                        clearTimeout(this.ctrlkeyDownTimer);
                        if(!this.justCKeyUp){//如果刚才没有松开c，规避划词软件的ctrl+c松开
                            this.ctrlKeyUp=true;
                            if(!this.tempZoom)return;//如果没有切换到了缩放
                            if(!this.working && this.altKeyUp){
                                this.tempZoom=false;
                                this.changeCursor(this.selectedTool);
                            };
                        };
                    }break;
                    case 67:{//c键
                        this.justCKeyUp=true;
                        var self=this;
                        clearTimeout(this.justCKeyUpTimer);
                        this.justCKeyUpTimer=setTimeout(function(){
                            self.justCKeyUp=false;
                        },100)
                    }break;
                    case 72:{//h键
                        this.hKeyUp=true;
                    }break;
                    case 82:{//r键
                        this.rKeyUp=true;
                    }break;
                    case 90:{//z键
                        this.zKeyUp=true;
                    }break;
                    default:break;
                };
 
                if([72,82,90].indexOf(keyCode)!=-1){
                    if(!this.working && this.restoreBeforeTool){
                        this.restoreBeforeTool=false;
                        this.selectTool(this.beforeTool);
                    };
                };
            },
            focusedKeydown:function(e){
                var keyCode=e.keyCode;
                var valid=[32,82,72,90,18,16,17,27,67];//有效的按键
                if(valid.indexOf(keyCode)==-1) return;
 
                e.preventDefault();
 
                if(this.working){//working的时候也可以接受按下shift键，以便旋转的时候可以任何时候按下
                    if(keyCode==16){//shift键
                        this.shiftKeyUp=false;
                    };
                    return;
                };
 
                switch(keyCode){
                    case 82:{//r键,切换到旋转工具
                        if(this.rKeyUp){
                            this.rKeyUp=false;
                            this.beforeTool=this.selectedTool;
                            this.selectTool('rotate');
                        };
                    }break;
                    case 72:{//h键,切换到抓手工具
                        if(this.hKeyUp){
                            this.hKeyUp=false;
                            this.beforeTool=this.selectedTool;
                            this.selectTool('hand');
                        };
                    }break;
                    case 90:{//z键,切换到缩放工具
                        if(this.zKeyUp){
                            this.zKeyUp=false;
                            this.beforeTool=this.selectedTool;
                            this.selectTool('zoom');
                        };
                    }break;
                    case 32:{//空格键阻止,临时切换到抓手功能
                        if(this.spaceKeyUp){
                            this.spaceKeyUp=false;
                            if(this.selectedTool!='hand'){
                                this.tempHand=true;
                                this.changeCursor('hand');
                            };
                        };
                    }break;
                    case 18:{//alt键,在当前选择是缩放工具的时候，按下的时候切换到缩小功能
                        if(this.altKeyUp){
                            if((this.selectedTool!='zoom' && !this.tempZoom) || this.zoomOut)return;
                            this.zoomOut=true;
                            this.altKeyUp=false;
                            this.changeCursor('zoom',true);
                        };
                    }break;
                    case 17:{//ctrl键临时切换到缩放工具
                        if(this.ctrlKeyUp){
                            var self=this;
                            this.ctrlkeyDownTimer=setTimeout(function(){//规避词典软件的ctrl+c，一瞬间切换到缩放的问题
                                self.ctrlKeyUp=false;
                                if(self.selectedTool!='zoom'){
                                    self.tempZoom=true;
                                    self.changeCursor('zoom');
                                };
                            },100);
                        };
                    }break;
                    case 67:{//c键
                        clearTimeout(this.ctrlkeyDownTimer);
                    }break;
                    case 27:{//ese关闭窗口
                        if(prefs.imgWindow.close.escKey){
                            this.remove();
                        };
                    }break;
                    default:break;
                };
            },
 
            toolbarEventHandler:function(e){
                e.stopPropagation();
                var target=e.target;
                var toolMap=this.toolMap;
                for(var i in toolMap){
                    if(toolMap.hasOwnProperty(i) && toolMap[i]==target){
                        switch(e.type){
                            case 'mousedown':{
                                this.selectTool(i);
                            }break;
                            case 'dblclick':{
                                this.dblclickCommand(i);
                            }break;
                            default:break;
                        };
                        break;
                    };
                };
            },
            imgWindowEventHandler:function(e){
                e.stopPropagation();
                switch(e.type){
                    case 'click':{//阻止opera的图片保存
                        if(e.ctrlKey && e.target.nodeName=='IMG'){
                            e.preventDefault();
                        };
                    }break;
                    case 'mousedown':{
                        if(!this.focused){//如果没有focus，先focus
                            this.focus();
                            this.keepScreenInside();
                        };
 
                        var target=e.target;
                        if(e.button==2){//由于rotate时候的覆盖层问题，修复右键的图片菜单弹出
                            if(target!=this.rotateOverlayer)return;
                            var self=this;
                            this.rotateOverlayer.style.display='none';
                            var upHandler=function(){
                                document.removeEventListener('mouseup',upHandler,true);
                                setTimeout(function(){
                                    self.rotateOverlayer.style.display='block';
                                },10);
                            };
                            document.addEventListener('mouseup',upHandler,true);
                            return;
                        };
 
                        if(e.button!=0 || (target!=this.imgWindow && target!=this.img && target!=this.rotateOverlayer))return;
                        e.preventDefault();
                        var selectedTool=this.selectedTool;
                        if(this.tempHand){
                            this.move(e);
                        }else if(this.tempZoom){
                            this.zoom(e);
                        }else if(selectedTool=='hand'){
                            this.restoreBeforeTool=!this.hKeyUp;
                            if(this.hKeyUp){
                                this.move(e);
                            }else{//鸟瞰视图
                                this.aerialView(e);
                            };
                        }else if(selectedTool=='rotate'){
                            var origin={//旋转原点
                                x:e.clientX - 30,//稍微偏左一点。
                                y:e.clientY ,
                            };
 
                            var rIS=this.rotateIndicator.style;
                            rIS.display='block';
                            rIS.top=origin.y + 'px';
                            rIS.left=origin.x + 'px';
 
                            this.restoreBeforeTool=!this.rKeyUp;
                            this.rotate(origin);
                        }else if(selectedTool=='zoom'){
                            this.restoreBeforeTool=!this.zKeyUp;
                            this.zoom(e);
                        };
                    }break;
                    case 'wheel':{
                        if(!this.focused)return;//如果没有focus
                        if(e.deltaY===0)return;//非Y轴的滚动
                        e.preventDefault();
                        if(this.working)return;
                        var oriZoomOut=this.zoomOut;
                        this.zoomOut = !!(e.deltaY > 0);
 
                        var ratio=this.getZoomRatio({
                            x:e.clientX,
                            y:e.clientY,
                        });
 
                        var level=this.getNextZoomLevel();
 
                        this.zoom(level,ratio);
                        this.zoomOut=oriZoomOut;
                    }break;
                    default:break;
                };
            },
 
            dblclickCommand:function(tool){
                var done;
                switch(tool){
                    case 'hand':{//双击居中,并且适应屏幕
                        this.zoom(1);
                        this.fitToScreen();
                        this.center(true,true);
                        this.keepScreenInside();
                    }break;
                    case 'rotate':{//双击还原旋转
                        if(this.rotatedRadians==0)return;
                        done=true;
                        this.rotate(0,true);
                    }break;
                    case 'zoom':{//双击还原缩放
                        if(this.zoomLevel==1)return;
                        done=true;
                        this.zoom(1,{x:0,y:0});
                    }break;
                    default:break;
                };
 
                if((tool=='rotate' || tool=='zoom') && done){
                    var scrolled=getScrolled();
                    var imgWindow=this.imgWindow;
                    var imgWinodowRect=imgWindow.getBoundingClientRect();
                    var imgWindowStyle=imgWindow.style;
                    if(imgWinodowRect.left<40){
                        imgWindowStyle.left=40 + scrolled.x + 'px';
                    };
                    if(imgWinodowRect.top<-5){
                        imgWindowStyle.top=-5 + scrolled.y +'px';
                    };
                    this.keepScreenInside();
                };
 
            },
            doFlipCommand:function(command){
                var map={
                    fv:[/scaleY\([^)]*\)/i,' scaleY(-1) '],
                    fh:[/scaleX\([^)]*\)/i,' scaleX(-1) '],
                };
 
                var iTransform=this.img.style[support.cssTransform];
 
                var toolClassList=this.toolMap[command].classList;
 
                if(map[command][0].test(iTransform)){
                    iTransform=iTransform.replace(map[command][0],'');
                    toolClassList.remove(this.selectedToolClass);
                }else{
                    iTransform += map[command][1];
                    toolClassList.add(this.selectedToolClass);
                };
                this.img.style[support.cssTransform]=iTransform;
 
            },
            selectTool:function(tool){
                var command=['fv','fh'];
                if(command.indexOf(tool)==-1){//工具选择
                    if(this.selectedTool==tool)return;
                    var selectedTool=this.selectedTool;
                    this.selectedTool=tool;
                    if(this.tempHand || this.tempZoom){//临时工具中。不变鼠标
                        return;
                    };
 
                    this.rotateOverlayer.style.display=(tool=='rotate'? 'block' : 'none');//这个覆盖层是为了捕捉双击或者单击事件。
 
                    if(selectedTool){
                        this.toolMap[selectedTool].classList.remove(this.selectedToolClass);
                    };
                    this.toolMap[tool].classList.add(this.selectedToolClass);
                    this.changeCursor(tool);
                }else{//命令
                    this.doFlipCommand(tool);
                };
            },
            changeCursor:function(tool,zoomOut){
                if(tool=='zoom'){
                    tool+=zoomOut? '-out' : '-in';
                };
                if(this.cursor==tool)return;
                this.cursor=tool;
 
                var cursor;
 
                switch(tool){
                    case 'hand':{
                        cursor=support.cssCursorValue.grab || 'pointer';
                    }break;
                    case 'handing':{
                        cursor=support.cssCursorValue.grabbing || 'pointer';
                    }break;
                    case 'zoom-in':{
                        cursor=support.cssCursorValue.zoomIn;
                    }break;
                    case 'zoom-out':{
                        cursor=support.cssCursorValue.zoomOut;
                    }break;
                    case 'rotate':{
                        cursor='progress';
                    }break;
                    case 'default':{
                        cursor='';
                    }break;
                };
 
                if(typeof cursor!='undefined'){
                    this.imgWindow.style.cursor=cursor;
                };
 
            },
 
            remove:function(){
                if(this.removed)return;
                this.removed=true;
                this.blur(true);
                this.img.src= prefs.icons.brokenImg_small;//如果在加载中取消，图片也取消读取。
 
                this.imgWindow.parentNode.removeChild(this.imgWindow);
 
                //点击点击外部关闭的监听
                if(prefs.imgWindow.close.clickOutside.enabled){
                    document.removeEventListener(prefs.imgWindow.close.clickOutside.trigger,this.clickOutside,true);
                };
 
                var index=ImgWindowC.all.indexOf(this);
                ImgWindowC.all.splice(index,1);
 
                //focus next
                if(ImgWindowC.all.length==0){
                    if(ImgWindowC.overlayer){
                        ImgWindowC.overlayer.style.display='none';
                    };
                }else{
                    var topmost=0;
                    ImgWindowC.all.forEach(function(iwin){
                        if(iwin.zIndex > topmost){
                            topmost=iwin;
                        };
                    });
                    if(topmost){
                        topmost.focus();
                    };
                };
 
            },
 
        };
 
        // 载入动画
        function LoadingAnimC(data,buttonType,waitImgLoad,openInTopWindow){
            this.args=arrayFn.slice.call(arguments,0);
            this.data=data;//data
            this.buttonType=buttonType;//点击的按钮类型
            this.openInTopWindow=openInTopWindow;//是否在顶层窗口打开，如果在frame里面的话
            this.waitImgLoad=waitImgLoad;//是否等待完全读取后打开
            this.init();
        };
 
        LoadingAnimC.all=[];
 
        LoadingAnimC.prototype={
            init:function(){
                LoadingAnimC.all.push(this);
                this.addStyle();
                var container=document.createElement('span');
 
                container.className='pv-loading-container';
                this.loadingAnim=container;
 
                container.title='正在加载:' + this.data.src;
                container.innerHTML=
                    '<span class="pv-loading-button pv-loading-retry" title="重试"></span>'+
                    '<span class="pv-loading-button pv-loading-cancle" title="取消"></span>';
 
                document.body.appendChild(container);
 
                var self = this;
                container.addEventListener('click',function(e){
                    var tcl=e.target.classList;
                    if(tcl.contains('pv-loading-cancle')){
                        self.imgReady.abort();
                        self.remove();
                    }else if(tcl.contains('pv-loading-retry')){
                        self.remove();
                        new LoadingAnimC(self.args[0],self.args[1],self.args[2],self.args[3]);
                    };
                },true);
 
                this.setPosition();
 
                if (this.buttonType == 'current') {
                    this.loadImg(this.data.imgSrc);
                } else {
                    if (!this.data.xhr) {
                        if(this.buttonType == 'search'){
                            sortSearch();
                            let from=0;
                            let searchFun=function(){
                                console.log(self.data.imgSrc);
                                searchImgByImg(self.data.imgSrc, function(srcs, index){
                                    let src=srcs.shift();
                                    if(index==3){
                                        self.loadImg(src, srcs);
                                    }else{
                                        from=index+1;
                                        self.loadImg(src, srcs, searchFun);
                                    }
                                },function(e) {
                                    self.error("网络错误");
                                },function(e) {
                                    self.error("没有找到原图");
                                }, from);
                            };
                            searchFun();
                        }else{
                            this.loadImg(this.data.src, this.data.srcs);
                        }
                    } else {
                        xhrLoad.load({
                            url: this.data.src,
                            xhr: this.data.xhr,
                            cb: function(imgSrc, imgSrcs, caption) {
                                if (imgSrc) {
                                    self.loadImg(imgSrc, imgSrcs);
                                } else {
                                    self.error();
                                }
                            },
                            onerror: function() {
                                self.error();
                            }
                        });
                    }
                }
            },
            addStyle:function(){
                if(LoadingAnimC.styleAdded)return;
                LoadingAnimC.styleAdded=true;
                var style=document.createElement('style');
                style.type='text/css';
                style.textContent='\
                .pv-loading-container {\
                position: absolute;\
                z-index:999999997;\
                background: black url("'+prefs.icons.loading+'") center no-repeat;\
                background-origin: content-box;\
                border: none;\
                padding: 1px 30px 1px 2px;\
                margin: 0;\
                opacity: 0.7;\
                height: 24px;\
                min-width: 24px;\
                box-shadow: 2px 2px 0px #666;\
                -webkit-transition: opacity 0.15s ease-in-out;\
                transition: opacity 0.15s ease-in-out;\
                }\
                .pv-loading-container:hover {\
                opacity: 0.9;\
                }\
                .pv-loading-button {\
                cursor: pointer;\
                height: 24px;\
                width: 24px;\
                position: absolute;\
                right: 0;\
                top: 0;\
                opacity: 0.4;\
                background:transparent center no-repeat;\
                -webkit-transition: opacity 0.15s ease-in-out;\
                transition: opacity 0.15s ease-in-out;\
                }\
                .pv-loading-button:hover {\
                opacity: 1;\
                }\
                .pv-loading-cancle{\
                background-image: url("'+prefs.icons.loadingCancle+'");\
                }\
                .pv-loading-retry{\
                display:none;\
                background-image: url("'+prefs.icons.retry+'");\
                }\
                .pv-loading-container_error{\
                background-image:none;\
                }\
                .pv-loading-container_error::after{\
                content:"加载失败";\
                line-height: 24px;\
                color: red;\
                font-size: 14px;\
                display:inline;\
                }\
                .pv-loading-container_error .pv-loading-cancle{\
                display:none;\
                }\
                .pv-loading-container_error .pv-loading-retry{\
                display:block;\
                }\
                ';
                document.head.appendChild(style);
            },
            remove:function(){
                if(!this.removed){
                    this.removed=true;
                    this.loadingAnim.parentNode.removeChild(this.loadingAnim);
                    LoadingAnimC.all.splice(LoadingAnimC.all.indexOf(this),1);
                };
            },
            error:function(msg,img,e){
                if(msg)console.debug(msg);
                this.loadingAnim.classList.add('pv-loading-container_error');
                console.debug('picviewer CE 载入大图错误：%o', this.data);
 
                var self=this;
                setTimeout(function(){
                    self.remove();
                },3000);
            },
            setPosition:function(){
                var position=getContentClientRect(this.data.img);
                var cs=this.loadingAnim.style;
                var scrolled=getScrolled();
                cs.top=position.top + scrolled.y +1 + 'px';
                cs.left=position.left + scrolled.x +1 + 'px';
                cs.removeProperty('display');
            },
 
            // 根据 imgSrc 载入图片，imgSrcs 为备用图片地址，imgSrc 加载失败备用
            loadImg: function(imgSrc, imgSrcs, nextFun) {
                var self = this;
 
                var img = document.createElement('img');
                img.src = imgSrc;
 
                var opts = {
                    error: function(e) {
                        if (Array.isArray(imgSrcs)) {
                            var src = imgSrcs.shift();
                            if (src) {
                                self.loadImg(src, imgSrcs, nextFun);
                                return;
                            }
                        }
 
                        if(nextFun) nextFun();
                        else self.error('', this, e);
                    },
                };
 
                opts[self.waitImgLoad ? 'load' : 'ready'] = function(e) {
                    self.load(this, e);
                };
 
                self.imgReady = imgReady(img, opts);
            },
 
            load:function(img,e){
                this.remove();
                this.img=img;
                var buttonType=this.buttonType;
 
                if(buttonType=='gallery'){
                    var allData=this.getAllValidImgs();
                    allData.target=this.data;
                    this.data=allData;
                };
 
                var self=this;
                function openInTop(){
                    var data=self.data;
 
                    //删除不能发送的项。
                    var delCantClone=function(obj){
                        delete obj.img;
                        delete obj.imgPA;
                    };
 
                    if(Array.isArray(data)){
                        frameSentSuccessData=frameSentData;
                        frameSentData=cloneObject(data,true);//备份一次
                        //console.log(frameSentData);
 
                        delCantClone(data.target);
                        data.forEach(function(obj){
                            delCantClone(obj);
                        });
                    }else{
                        delCantClone(data);
                    };
 
                    window.postMessage({
                        messageID:messageID,
                        src:img.src,
                        data:data,
                        command:'open',
                        buttonType:buttonType,
                        to:'top',
                    },'*');
                };
 
                if(this.openInTopWindow && isFrame && topWindowValid!==false && buttonType!='magnifier'){
                    if(topWindowValid){
                        openInTop();
                    }else{//先发消息问问顶层窗口是不是非frameset窗口
                        window.postMessage({
                            messageID:messageID,
                            command:'topWindowValid',
                            to:'top',
                        },'*');
 
                        document.addEventListener('pv-topWindowValid',function(e){
                            topWindowValid=e.detail;
                            if(topWindowValid){//如果顶层窗口有效
                                openInTop()
                            }else{
                                self.open();
                            };
                        },true);
                    };
 
                }else{
                    this.open();
                };
 
 
            },
            getAllValidImgs:function(){
                var imgs=document.getElementsByTagName('img'), // html collection
                    validImgs=[]
                ;
                arrayFn.forEach.call(imgs,function(img,index,imgs){
                    var result=findPic(img);
                    if(result){
                        validImgs.push(result);
                    };
                });
                return validImgs;
            },
            open:function(){
                switch(this.buttonType){
                    case 'gallery':{
                        if(!gallery){
                            gallery=new GalleryC();
                        };
                        gallery.load(this.data,this.from);
                    }break;
                    case 'magnifier':{
                        new MagnifierC(this.img,this.data);
                    }break;
                    case 'actual':;
                    case 'search':;
                    case 'current':;
                    case 'original':{//original 是为了兼容以前的规则
                        new ImgWindowC(this.img, this.data);
                    }break;
                };
            },
        };
 
        //工具栏
        function FloatBarC(){
            this.init();
        };
 
        FloatBarC.prototype={
            init:function(){
                this.addStyle();
                var container=document.createElement('span');
                container.id='pv-float-bar-container';
                container.innerHTML=
                    '<span class="pv-float-bar-button"></span>'+
                    '<span class="pv-float-bar-button"></span>'+
                    '<span class="pv-float-bar-button"></span>'+
                    '<span class="pv-float-bar-button"></span>'+
                    '<span class="pv-float-bar-button"></span>';
                document.body.appendChild(container);
 
                var buttons={
                };
                this.buttons=buttons;
                this.children=container.children;
 
                arrayFn.forEach.call(this.children,function(child,index){
                    var titleMap={
                        actual:'查看原始(A)',
                        search:'查找原图(S)',
                        gallery:'查看库(G)',
                        current:'查看当前(C)',
                        magnifier:'放大镜(M)',
                    };
                    var buttonName=prefs.floatBar.butonOrder[index];
                    buttons[buttonName]=child;
                    child.title=titleMap[buttonName];
                    child.classList.add('pv-float-bar-button-' + buttonName);
                });
 
 
                this.floatBar=container;
 
 
                var self=this;
                container.addEventListener('click',function(e){
                    var buttonType;
                    var target=e.target;
                    for(var type in buttons){
                        if(!buttons.hasOwnProperty(type))return;
                        if(target==buttons[type]){
                            buttonType=type;
                            break;
                        };
                    };
                    if(!buttonType)return;
 
                    self.hide();
                    self.open(e,buttonType);
 
                },true);
 
 
                addCusMouseEvent('mouseleave',container,function(e){
                    clearTimeout(self.hideTimer);
                    self.hideTimer=setTimeout(function(){
                        self.hide();
                    },prefs.floatBar.hideDelay);
                });
 
                addCusMouseEvent('mouseenter',container,function(e){
                    clearTimeout(self.hideTimer);
                });
 
                this._scrollHandler=this.scrollHandler.bind(this);
            },
            addStyle:function(){
                var style=document.createElement('style');
                style.type='text/css';
                style.textContent='\
#pv-float-bar-container {\
position: absolute;\
z-index:999999998;\
padding: 5px;\
margin: 0;\
border: none;\
opacity: 0.6;\
line-height: 0;\
-webkit-transition: opacity 0.2s ease-in-out;\
transition: opacity 0.2s ease-in-out;\
display:none;\
}\
#pv-float-bar-container:hover {\
opacity: 1;\
}\
#pv-float-bar-container .pv-float-bar-button {\
vertical-align:middle;\
cursor: pointer;\
width: 18px;\
height: 18px;\
padding: 0;\
margin:0;\
border: none;\
display: inline-block;\
position: relative;\
box-shadow: 1px 0 3px 0px rgba(0,0,0,0.9);\
background: transparent center no-repeat;\
background-size:100% 100%;\
background-origin: content-box;\
-webkit-transition: margin-right 0.15s ease-in-out ,  width 0.15s ease-in-out ,  height 0.15s ease-in-out ;\
transition: margin-right 0.15s ease-in-out ,  width 0.15s ease-in-out ,  height 0.15s ease-in-out ;\
}\
#pv-float-bar-container .pv-float-bar-button:not(:last-child){\
margin-right: -14px;\
}\
#pv-float-bar-container .pv-float-bar-button:first-child {\
z-index: 4;\
}\
#pv-float-bar-container .pv-float-bar-button:nth-child(2) {\
z-index: 3;\
}\
#pv-float-bar-container .pv-float-bar-button:nth-child(3) {\
z-index: 2;\
}\
#pv-float-bar-container .pv-float-bar-button:last-child {\
z-index: 1;\
}\
#pv-float-bar-container:hover > .pv-float-bar-button {\
width: 24px;\
height: 24px;\
}\
#pv-float-bar-container:hover > .pv-float-bar-button:not(:last-child) {\
margin-right: 4px;\
}\
#pv-float-bar-container .pv-float-bar-button-actual {\
background-image:url("'+ prefs.icons.actual +'");\
}\
#pv-float-bar-container .pv-float-bar-button-search {\
background-image:url("'+ prefs.icons.search +'");\
}\
#pv-float-bar-container .pv-float-bar-button-gallery {\
background-image:url("'+ prefs.icons.gallery +'");\
}\
#pv-float-bar-container .pv-float-bar-button-current {\
background-image:url("'+ prefs.icons.current +'");\
}\
#pv-float-bar-container .pv-float-bar-button-magnifier {\
background-image:url("'+ prefs.icons.magnifier +'");\
}\
';
                document.head.appendChild(style);
            },
            start:function(data){
 
                //读取中的图片,不显示浮动栏,调整读取图标的位置.
                if(LoadingAnimC.all._find(function(item,index,array){
                    if(data.img==item.data.img){
                        return true;
                    };
                }))return;
 
 
                //被放大镜盯上的图片,不要显示浮动栏.
                if(MagnifierC.all._find(function(item,index,array){
                    if(data.img==item.data.img){
                        return true;
                    };
                }))return;
 
                this.data=data;
                var self=this;
                clearTimeout(this.hideTimer);
 
                var imgOutHandler=function(e){
                    document.removeEventListener('mouseout',imgOutHandler,true);
                    clearTimeout(self.showTimer);
                    clearTimeout(self.hideTimer);
                    self.hideTimer=setTimeout(function(){
                        self.hide();
                    },prefs.floatBar.hideDelay);
                };
 
                clearTimeout(this.globarOutTimer);
                this.globarOutTimer=setTimeout(function(){//稍微延时。错开由于css hover样式发生的out;
                    document.addEventListener('mouseout',imgOutHandler,true);
                },150);
 
                clearTimeout(this.showTimer);
                this.showTimer=setTimeout(function(){
                    self.show();
                },prefs.floatBar.showDelay);
            },
            setButton:function(){
                if(this.data.type=='force'){
                    this.buttons['actual'].style.display='none';
                    this.buttons['magnifier'].style.display='none';
                }else{
                    this.buttons['actual'].style.removeProperty('display');
                    this.buttons['magnifier'].style.removeProperty('display');
                };
 
                if (this.data.img.nodeName != 'IMG') {
                    this.buttons['gallery'].style.display = 'none';
                    this.buttons['current'].style.display = 'none';
                } else {
                    this.buttons['gallery'].style.removeProperty('display');
                    this.buttons['current'].style.removeProperty('display');
                }
            },
            setPosition:function(){
                //如果图片被删除了，或者隐藏了。
                if(this.data.img.offsetWidth==0){
                    return true;
                };
                var targetPosi=getContentClientRect(this.data.img);
                var windowSize=getWindowSize();
 
                var floatBarPosi=prefs.floatBar.position.toLowerCase().split(/\s+/);
 
                var offsetX=prefs.floatBar.offset.x;
                var offsetY=prefs.floatBar.offset.y;
 
 
                var scrolled=getScrolled();
 
                var fbs=this.floatBar.style;
                var setPosition={
                    top:function(){
                        var top=targetPosi.top + scrolled.y;
                        if(targetPosi.top + offsetY < 0){//满足图标被遮住的条件.
                            top=scrolled.y;
                            offsetY=0;
                        };
                        fbs.top=top + offsetY + 'px';
                    },
                    right:function(){
                        var right=windowSize.w - targetPosi.right;
                        if(right < offsetX){
                            right= -scrolled.x;
                            offsetX=0;
                        }else{
                            right -=scrolled.x;
                        };
                        fbs.right=right - offsetX + 'px';
                    },
                    bottom:function(){
                        var bottom=windowSize.h - targetPosi.bottom;
                        if(bottom <= offsetY){
                            bottom=-scrolled.y;
                            offsetY=0;
                        }else{
                            bottom -= scrolled.y;
                        };
                        fbs.bottom=bottom - offsetY + 'px';
                    },
                    left:function(){
                        var left=targetPosi.left + scrolled.x;
                        if(targetPosi.left + offsetX < 0){
                            left=scrolled.x;
                            offsetX=0;
                        };
                        fbs.left=left + offsetX + 'px';
                    },
                };
 
                setPosition[floatBarPosi[0]]();
                setPosition[floatBarPosi[1]]();
            },
            show:function(){
                if(this.setPosition())return;
                this.shown=true;
                this.setButton();
                this.floatBar.style.display='block';
                clearTimeout(this.hideTimer);
                window.removeEventListener('scroll',this._scrollHandler,true);
                window.addEventListener('scroll',this._scrollHandler,true);
            },
            hide:function(){
                clearTimeout(this.showTimer);
                this.shown=false;
                this.floatBar.style.display='none';
                window.removeEventListener('scroll',this._scrollHandler,true);
            },
            scrollHandler:function(){//更新坐标
                clearTimeout(this.scrollUpdateTimer);
                var self=this;
                this.scrollUpdateTimer=setTimeout(function(){
                    self.setPosition();
                },100);
            },
            open:function(e,buttonType){
                var waitImgLoad = e && e.ctrlKey ? !prefs.waitImgLoad : prefs.waitImgLoad; //按住ctrl取反向值
                var openInTopWindow = e && e.shiftKey ? !prefs.framesPicOpenInTopWindow : prefs.framesPicOpenInTopWindow; //按住shift取反向值
 
                if (!waitImgLoad && buttonType == 'magnifier' && !envir.chrome) { //非chrome的background-image需要全部载入后才能显示出来
                    waitImgLoad = true;
                };
                new LoadingAnimC(this.data, buttonType, waitImgLoad, openInTopWindow);
            },
        };
 
        /**
 * 提取自 Mouseover Popup Image Viewer 脚本，用于 xhr 方式的获取
 */
        var xhrLoad = function() {
            var _ = {};
 
            var caches = {};
            var handleError;
 
            /**
     * @param  q  图片的选择器或函数
     * @param  c  图片说明的选择器或函数
     */
            function parsePage(url, q, c, post, cb) {
                downloadPage(url, post, function(html) {
                    var iurl, iurls = [], cap, doc = createDoc(html);
 
                    if(typeof q == 'function') {
                        iurl = q(html, doc);
                    } else {
                        var inodes = findNodes(q, doc);
                        inodes.forEach(function(node) {
                            iurls.push(findFile(node, url));
                        });
                        iurl = iurls.shift();
                    }
 
                    if(typeof c == 'function') {
                        cap = c(html, doc);
                    } else {
                        var cnodes = findNodes(c, doc);
                        cap = cnodes.length ? findCaption(cnode[0]) : false;
                    }
 
                    // 缓存
                    if (iurl) {
                        caches[url] = {
                            iurl: iurl,
                            iurls: iurls,
                            cap: cap
                        };
                    }
 
                    cb(iurl, iurls, cap);
                });
            }
 
            function downloadPage(url, post, cb) {
                var opts = {
                    method: 'GET',
                    url: url,
                    onload: function(req) {
                        try {
                            if(req.status > 399) throw 'Server error: ' + req.status;
                            cb(req.responseText, req.finalUrl || url);
                        } catch(ex) {
                            handleError(ex);
                        }
                    },
                    onerror: handleError
                };
                if(post) {
                    opts.method = 'POST';
                    opts.data = post;
                    opts.headers = {'Content-Type':'application/x-www-form-urlencoded','Referer':url};
                }
 
                GM_xmlhttpRequest(opts);
            }
 
            function createDoc(text) {
                var doc = document.implementation.createHTMLDocument('picViewerCE');
                doc.documentElement.innerHTML = text;
                return doc;
            }
 
            function findNodes(q, doc) {
                var nodes = [],
                    node;
                if (!Array.isArray(q)) q = [q];
                for (var i = 0, len = q.length; i < len; i++) {
                    node = qs(q[i], doc);
                    if (node) {
                        nodes.push(node);
                    }
                }
                return nodes;
            }
 
            function findFile(n, url) {
                var path = n.src || n.href;
                return path ? path.trim() : false;
            }
 
            function findCaption(n) {
                return n.getAttribute('content') || n.getAttribute('title') || n.textContent;
            }
 
            function qs(s, n) {
                return n.querySelector(s);
            }
 
            _.load = function(opt) {
                var info = caches[opt.url];
                if (info) {
                    opt.cb(info.iurl, info.iruls, info.cap);
                    return;
                }
 
                handleError = opt.onerror || function() {};
 
                parsePage(opt.url, opt.xhr.q, opt.xhr.c, opt.post, opt.cb);
            };
 
            return _;
        }();
 
 
        /**
 * 兼容 Mousever Popup Image Viewer 脚本规则
 * 规则说明地址：http://w9p.co/userscripts/mpiv/host_rules.html
 */
        var MPIV = (function() {
 
            var hosts = Rule.MPIV;
 
            var d = document, wn = window;
            var cfg = {
                thumbsonly: true,
            };
            // 我新加的
            var rgxHTTPs = /^https?:\/\/(?:www\.)?/;
 
            function loadRule() {
                var rules = Rule.MPIV;
 
                var isStringFn = function(a) {
                    return typeof a == 'string' && a.indexOf('return ') > -1;
                };
 
                rules.forEach(function(h) {
                    try {
                        if(h.r) h.r = toRE(h.r, 'i');
                        if(isStringFn(h.s)) h.s = new Function('m', 'node', h.s);
                        if(isStringFn(h.q)) h.q = new Function('text', 'doc', h.q);
                        if(isStringFn(h.c)) h.c = new Function('text', 'doc', h.c);
                    } catch(ex) {
                        console.error('MPIV 规则无效: %o', h, ex);
                    }
                });
 
                var filter = function(hn, h) {
                    return !h.d || hn.indexOf(h.d) > -1;
                };
 
                hosts = rules.filter(filter.bind(null, location.hostname));
 
                return hosts;
            }
 
            function hasBg(node) {
                return node ? wn.getComputedStyle(node).backgroundImage != 'none' && node.className.indexOf('YTLT-') < 0 : false;
            }
 
            function rel2abs(rel, abs) {
                if(rel.indexOf('//') === 0) rel = 'http:' + rel;
                var re = /^([a-z]+:)?\/\//;
                if(re.test(rel))  return rel;
                if(!re.exec(abs)) return;
                if(rel[0] == '/') return abs.substr(0, abs.indexOf('/', RegExp.lastMatch.length)) + rel;
                return abs.substr(0, abs.lastIndexOf('/')) + '/' + rel;
            }
 
            /**
     * 我新增了特殊的替换模式
     * 规则：
     *   {"r":"hotimg\\.com/image", "s":"/image/direct/"}
     *   把 image 替换为 direct ，就是 .replace(/image/, "direct")
     */
            function replace(s, m, r, http) {
                if(!m) return s;
 
                if (r && s.startsWith('r;')) {  // 特殊的替换模式
                    s = m.input.replace(r, s.slice(2));
                } else if(s.indexOf('/') === 0) {
                    var mid = /[^\\]\//.exec(s).index+1;
                    var end = s.lastIndexOf('/');
                    var re = new RegExp(s.substring(1, mid), s.substr(end+1));
                    s = m.input.replace(re, s.substring(mid+1, end));
                } else {
                    for(var i = m.length; i--;) {
                        s = s.replace('$'+i, m[i]);
                    }
                }
 
                if (!s.startsWith('http') && http) {
                    return http + s;
                }
 
                return s;
            }
 
            function rect(node, q) {
                if(q) {
                    var n = node;
                    while(tag(n = n.parentNode) != 'BODY') {
                        if(matches(n, q)) return n.getBoundingClientRect();
                    }
                }
                var nodes = node.querySelectorAll('*');
                for(var i = nodes.length; i-- && (n = nodes[i]);) {
                    if(n.offsetHeight > node.offsetHeight) node = n;
                }
                return node.getBoundingClientRect();
            }
 
            function matches(n, q) {
                var p = Element.prototype, m = p.mozMatchesSelector || p.webkitMatchesSelector || p.oMatchesSelector || p.matchesSelector || p.matches;
                if(m) return m.call(n, q);
            }
 
            function tag(n) {
                return n.tagName && n.tagName.toUpperCase();
            }
 
            function qs(s, n) {
                return n.querySelector(s);
            }
 
            function parseNode(node) {
                var a, img, url, info;
                if(tag(node) == 'A') {
                    a = node;
                } else {
                    if(tag(node) == 'IMG') {
                        img = node;
                        if(img.src.substr(0, 5) != 'data:') url = rel2abs(img.src, location.href);
                    }
                    info = findInfo(url, node);
                    if(info) return info;
                    a = tag(node.parentNode) == 'A' ? node.parentNode : (tag(node.parentNode.parentNode) == 'A' ? node.parentNode.parentNode : false);
                }
                if(a) {
                    if(cfg.thumbsonly && !(img || qs('i', a) || a.rel == 'theater') && !hasBg(a) && !hasBg(a.parentNode) && !hasBg(a.firstElementChild)) return;
                    url = a.getAttribute('data-expanded-url') || a.getAttribute('data-full-url') || a.getAttribute('data-url') || a.href;
                    if(url.substr(0, 5) == 'data:') url = false;
                    else if(url.indexOf('//t.co/') > -1) url = 'http://' + a.textContent;
                    info = findInfo(url, a);
                    if(info) return info;
                }
                if(img) return {url:img.src, node:img, rect:rect(img), distinct:true};
            }
 
            function findInfo(url, node, noHtml, skipHost) {
                for(var i = 0, len = hosts.length, tn = tag(node), h, m, html, urls, URL, http; i < len && (h = hosts[i]); i++) {
                    if(h.e && !matches(node, h.e) || h == skipHost) continue;
                    if(h.r) {
                        if(h.html && !noHtml && (tn == 'A' || tn == 'IMG' || h.e)) {
                            if(!html) html = node.outerHTML;
                            m = h.r.exec(html)
                        } else if(url) {
                            // 去掉前面的 https://
                            URL = url.replace(rgxHTTPs, '');
                            http = url.slice(0, url.length - URL.length);
                            m = h.r.exec(URL);
                        } else {
                            m = null;
                        }
                    } else {
                        m = url ? /.*/.exec(url) : [];
                    }
                    if(!m || tn == 'IMG' && !('s' in h)) continue;
                    if('s' in h) {
                        urls = (Array.isArray(h.s) ? h.s : [h.s]).map(function(s) { if(typeof s == 'string') return decodeURIComponent(replace(s, m, h.r, http)); if(typeof s == 'function') return s(m, node); return s; });
                        if(Array.isArray(urls[0])) urls = urls[0];
                        if(urls[0] === false) continue;
                        urls = urls.map(function(u) { return u ? decodeURIComponent(u) : u; });
                    } else {
                        urls = [m.input];
                    }
                    if((h.follow === true || typeof h.follow == 'function' && h.follow(urls[0])) && !h.q) return findInfo(urls[0], node, false, h);
 
                    // debug('MPIV 找到的规则是 %o', h);
                    return {
                        node: node,
                        url: urls.shift(),
                        urls: urls,
                        r: h.r,
                        s: h.s,
                        q: h.q,
                        c: h.c,
                        // g: h.g ? loadGalleryParser(h.g) : h.g,
                        xhr: h.xhr,
                        post: typeof h.post == 'function' ? h.post(m) : h.post,
                        follow: h.follow,
                        css: h.css,
                        // manual: h.manual,
                        distinct: h.distinct,
                        // rect: rect(node, h.rect)
                    };
                };
            }
 
            // TODO
            function rulesToString(rules) {
                var newRules = [];
 
                rules.forEach(function(h) {
                    var newInfo = {}
                    Object.keys(h).forEach(function(key) {
                        if (key == 'r') {
                            newInfo.r = h.r instanceof RegExp ?
                                h.r.toString() : null;
                        }
 
                    });
                });
            }
 
            return {
                parseNode: parseNode,
                findInfo: findInfo,
                loadRule: loadRule,
            }
 
        })();
 
        // ------------------- run -------------------------
 
        var matchedRule,
            URL=location.href,
            floatBar;
 
        function findPic(img){
            //获取包裹img的第一个a元素。
            var imgPN=img;
            var imgPA;
            while(imgPN=imgPN.parentElement){
                if(imgPN.nodeName=='A'){
                    imgPA=imgPN;
                    break;
                };
            };
 
            var iPASrc=imgPA? imgPA.href : '';
            //base64字符串过长导致正则匹配卡死浏览器
            var base64Img=/^data:[^;]+;base64,/i.test(img.src);
 
            // if (typeof matchedRule == 'undefined') { // 找到符合站点的高级规则,并缓存.
 
            // };
 
            var src,  // 大图地址
                srcs,  // 备用的大图地址
                type,  // 类别
                imgSrc = img.src,  // img 节点的 src
                xhr,
                description;  // 图片的注释
 
            if(!src && matchedRule){// 通过高级规则获取.
                // 排除
                if (matchedRule.exclude && matchedRule.exclude.test(imgSrc)) {
                    return;
                } else {
                    try{
                        src = matchedRule.getImage.call(img,img,imgPA);
                    }catch(err){
                        throwErrorInfo(err);
                    }
 
                    if(src) {
                        if (Array.isArray(src)) {
                            srcs = src;
                            src = srcs.shift();
                        }
 
                        type = 'rule';
                        xhr = matchedRule.xhr;
 
                        if (matchedRule.lazyAttr) {  // 由于采用了延迟加载技术，所以图片可能为 loading.gif
                            imgSrc = img.getAttribute(matchedRule.lazyAttr) || img.src;
                        }
 
                        if (matchedRule.description) {
                            var node = getElementMix(matchedRule.description, img);
                            if (node) {
                                description = node.getAttribute('title') || node.textContent;
                            }
                        }
                    }
                }
            };
 
            if (!src && !base64Img) { // 兼容 MPIV 脚本规则
                var info = MPIV.parseNode(img);
                if (info && info.url && (info.url != imgSrc)) {
                    type = 'rule';
                    src = info.url;
                    srcs = info.urls;
                    if (info.q) {
                        xhr = {
                            q: info.q
                        };
                    }
                }
            }
 
            if(!src && !base64Img){//遍历通配规则
                tprules._find(function(rule,index,array){
                    try{
                        src=rule.call(img,img,imgPA);
                        if(src){
                            //console.log('匹配的通配规则',rule);
                            return true;
                        };
                    }catch(err){
                        throwErrorInfo(err);
                    };
                });
                if(src)type='tpRule';
            };
 
            if(!src && imgPA){//链接可能是一张图片...
                if(/\.(?:jpg|jpeg|png|gif|bmp)$/i.test(iPASrc)){
                    src=iPASrc;
                };
                if(src)type='scale';
            };
 
            if(!src){//本图片是否被缩放.
                var imgAS={//实际尺寸。
                    h:img.naturalHeight,
                    w:img.naturalWidth,
                };
 
                var imgCStyle=unsafeWindow.getComputedStyle(img);
                var imgCS={
                    h: parseFloat(imgCStyle.height),
                    w: parseFloat(imgCStyle.width),
                };
                // 2014年11月3日，目前的七星浏览器存在缩放bug，会得到小数点，所以要四舍五入
                // 还会造成实际上并未缩放的图片，在七星浏览器上，尺寸会不相等，比如 119 * 119（实际：120 * 120）
                // if (!isNaN(imgCS.h)) imgCS.h = Math.round(imgCS.h);
                // if (!isNaN(imgCS.w)) imgCS.w = Math.round(imgCS.w);
 
                if(!(imgAS.w==imgCS.w && imgAS.h==imgCS.h)){//如果不是两者完全相等,那么被缩放了.
                    if(imgAS.h > prefs.floatBar.minSizeLimit.h || imgAS.w > prefs.floatBar.minSizeLimit.w){//最小限定判断.
                        src=imgSrc;
                        type='scale';
 
                        // // 图片尺寸相差
                        // if (!isNaN(imgCS.h) && (imgAS.h * imgAS.w / (imgCS.h * imgCS.w) * 100 - 100) < prefs.gallery.zoomresized) {
                        //  type = 'scaleZoomResized'
                        // }
                        if (imgAS.h < prefs.gallery.scaleSmallSize && imgAS.w < prefs.gallery.scaleSmallSize) {
                            type = 'scaleSmall';
                        }
                    };
                }else{
                    if(prefs.floatBar.forceShow.enabled && (imgCS.w>=prefs.floatBar.forceShow.size.w && imgCS.h>=prefs.floatBar.forceShow.size.h)){
                        src=imgSrc;
                        type='force';
                    };
                };
            };
 
            if(!src)return;
 
            var ret = {
                src: src,                  // 得到的src
                srcs: srcs,                // 多个 src，失败了会尝试下一个
                type: type,                // 通过哪种方式得到的
                imgSrc: imgSrc,            // 处理的图片的src
                iPASrc: iPASrc,            // 图片的第一个父a元素的链接地址
 
                xhr: xhr,
                description: description || '',
 
                img: img,                  // 处理的图片
                imgPA: imgPA,              // 图片的第一个父a元素
            };
 
            //console.log('图片查找结果:',ret);
            return ret;
        }
 
        function getMatchedRule() {
            var rule = siteInfo._find(function(site, index, array) {
                if (site.url && toRE(site.url).test(URL)) {
                    return true;
                }
            });
 
            rule = rule ? rule[0] : false;
            // debug('picviewerCE 匹配的规则：',rule);
 
            return rule;
        }
 
        var isFrame=window!=window.parent;
        var topWindowValid;//frameset的窗口这个标记为false
        var frameSentData;
        var frameSentSuccessData;
        function handleMessage(e){ // contentscript里面的message监听，监听来自别的窗口的数据。
            var data=e.data;
            if( !data || !data.messageID || data.messageID != messageID )return;//通信ID认证
            var source=e.source;
            //chrome中所有window窗口的引用都是undefined
            if(typeof source=='undefined' || source!==window){//来自别的窗口
                if(!isFrame){//顶层窗口
                    //console.log('top-contentscript接收到：',e);
 
                    var command=data.command;
                    switch(command){
                        case 'open':{
                            var img=document.createElement('img');
                            img.src=data.src;
 
                            imgReady(img,{
                                ready:function(){
                                    LoadingAnimC.prototype.open.call({
                                        img:img,
                                        data:data.data,
                                        buttonType:data.buttonType,
                                        from:data.from,//来自哪个窗口
                                    });
                                },
                            });
                        }break;
                        case 'navigateToImg':{
                            var cusEvent=document.createEvent('CustomEvent');
                            cusEvent.initCustomEvent('pv-navigateToImg',false,false,data.exist);
                            document.dispatchEvent(cusEvent);
                        }break;
                        case 'topWindowValid':{
                            window.postMessage({
                                messageID:messageID,
                                command:'topWindowValid',
                                valid:document.body.nodeName!='FRAMESET',
                                to:data.from,
                            },'*');
                        }break;
                    };
 
                }else{//frame窗口
                    //console.log('frame-contentscript接收到',e);
                    var command=data.command;
                    switch(command){
                        case 'navigateToImg':{
 
                            if(!frameSentData.unique){
                                var unique=GalleryC.prototype.unique(frameSentData);
                                frameSentData=unique.data;
                                frameSentData.unique=true;
                            };
                            var targetImg=frameSentData[data.index].img;
                            var exist=(document.documentElement.contains(targetImg) && unsafeWindow.getComputedStyle(targetImg).display!='none');
 
                            if(exist){
                                if(gallery && gallery.shown){//frame里面也打开了一个呢。
                                    gallery.minimize();
                                };
                                setTimeout(function(){
                                    GalleryC.prototype.navigateToImg(targetImg);
                                    flashEle(targetImg);
                                },0);
                            };
                            window.postMessage({
                                messageID:messageID,
                                command:'navigateToImg',
                                exist:exist,
                                to:data.from,
                            },'*');
                        }break;
                        case 'sendFail':{
                            frameSentData=frameSentSuccessData;//frameSentData重置为发送成功的数据。
                        }break;
                        case 'topWindowValid':{
                            var cusEvent=document.createEvent('CustomEvent');
                            cusEvent.initCustomEvent('pv-topWindowValid',false,false,data.valid);
                            document.dispatchEvent(cusEvent);
                        }break;
                    };
                };
 
            };
        }
 
        //页面脚本用来转发消息
        //原因chrome的contentscript无法访问非自己外的别的窗口。都会返回undefined，自然也无法向其他的窗口发送信息,这里用pagescript做个中间代理
        //通讯逻辑..A页面的contentscript发送到A页面的pagescript，pagescript转交给B页面的contentscript
        var messageID='pv-0.5106795670312598';
 
        function addPageScript() {
 
            var pageScript=document.createElement('script');
            pageScript.id = 'picviewer-page-script';
 
            var pageScriptText=function(messageID){
                var frameID=Math.random();
                var frames={
                    top:window.top,
                };
 
                window.addEventListener('message',function(e){
                    var data=e.data;
                    if( !data || !data.messageID || data.messageID != messageID )return;//通信ID认证
                    var source=e.source;
                    if(source===window){//来自contentscript,发送出去,或者干嘛。
                        if(data.to){
                            data.from=frameID;
                            frames[data.to].postMessage(data,'*');
                        }else{
                            switch(data.command){
                                case 'getIframeObject':{
                                    var frameWindow=frames[data.windowId];
                                    var iframes=document.getElementsByTagName('iframe');
                                    var iframe;
                                    var targetIframe;
                                    for(var i=iframes.length-1 ; i>=0 ; i--){
                                        iframe=iframes[i];
                                        if(iframe.contentWindow===frameWindow){
                                            targetIframe=iframe;
                                            break;
                                        };
                                    };
                                    var cusEvent=document.createEvent('CustomEvent');
                                    cusEvent.initCustomEvent('pv-getIframeObject',false,false,targetIframe);
                                    document.dispatchEvent(cusEvent);
                                }break;
                            };
                        };
 
                    }else{//来自别的窗口的，contentscript可以直接接收，这里保存下来自的窗口的引用
                        frames[data.from]=source;
                    };
                },true)
            };
 
            pageScript.textContent='(' + pageScriptText.toString() + ')('+ JSON.stringify(messageID) +')';
            document.head.appendChild(pageScript);
        }
 
        function clikToOpen(data){
 
            var preventDefault = matchedRule.clikToOpen.preventDefault;
 
            function mouseout(){
                document.removeEventListener('mouseout',mouseout,true);
                document.removeEventListener('click',click,true);
                if(data.imgPA && preventDefault){
                    data.imgPA.removeEventListener('click',clickA,false);
                };
            };
 
            function click(e){
                if(e.button!=0)return;
                FloatBarC.prototype.open.call({
                    data:data,
                },
                                              e,
                                              matchedRule.clikToOpen.type);
            };
 
            function clickA(e){//阻止a的默认行为
                e.preventDefault();
            };
 
            document.addEventListener('click',click,true);
 
            if(data.imgPA && preventDefault){
                data.imgPA.addEventListener('click',clickA,false);
            };
 
            setTimeout(function(){//稍微延时。错开由于css hover样式发生的out;
                document.addEventListener('mouseout',mouseout,true);
            },100);
 
            return function(){
                mouseout()
            };
        }
 
        //监听 mouseover
        var canclePreCTO;
        function globalMouseoverHandler(e){
 
            //console.log(e);
            if(galleryMode)return;//库模式全屏中......
 
            var target = e.target;
 
            if (!target || target.classList.contains('pv-pic-ignored')) {
                return;
            }
 
            // 扩展模式，检查前面一个是否为 img
            if (target.nodeName != 'IMG' && matchedRule && matchedRule.ext) {
                var _type = typeof matchedRule.ext;
                if (_type == 'string') {
                    switch (matchedRule.ext) {
                        case 'previous':
                            target = target.previousElementSibling;
                            break;
                        case 'previous-2':
                            target = target.previousElementSibling &&
                                target.previousElementSibling.previousElementSibling;
                            break;
                    }
                } else if (_type == 'function') {
                    try {
                        target = matchedRule.ext(target);
                    } catch(ex) {
                        throwErrorInfo(ex);
                    }
 
                    if (!target) return;
                }
            }
 
            var result;
 
            // if (target.nodeName != 'IMG') {  // 兼容 MPIV 脚本规则的非 img 节点，缺失图库的功能
            //  var info = MPIV.parseNode(target);
            //  if (info && info.r) {
            //      var img = info.node;
            //      result = {
            //          type: 'rule',
            //          src: info.url,
            //          srcs: info.urls,
            //          imgSrc: img.src,
 
            //          img: img,
            //          imgPA: null,
            //      };
 
            //      if (info.q) {
            //          result.xhr = {
            //              q: info.q
            //          };
            //      }
            //  }
            // }
 
            if (!target || !result && target.nodeName != 'IMG') return;
 
            if (!result) {
                result = findPic(target);
            }
 
            if(result){
                if(!floatBar){
                    floatBar=new FloatBarC();
                };
                if(result.type=='rule' && matchedRule.clikToOpen && matchedRule.clikToOpen.enabled){
                    if(canclePreCTO){//取消上次的，防止一次点击打开多张图片
                        canclePreCTO();
                    };
                    canclePreCTO=clikToOpen(result);
                };
                floatBar.start(result);//出现悬浮工具栏
            };
        }
 
        function isKeyDownEffectiveTarget(target) {
            var localName = target.localName;
 
            // 确保光标不是定位在文字输入框或选择框
            if (localName == 'textarea' || localName == 'input' || localName == 'select')
                return false;
 
            // 视频播放器
            if (localName == 'object' || localName == 'embed')
                return false;
 
            // 百度贴吧回复输入的问题
            if (target.getAttribute('contenteditable') == 'true')
                return false;
 
            return true;
        }
 
        function keydown(event) {
            if (event.ctrlKey || event.shiftKey || event.altKey || event.metaKey)
                return;
 
            if (floatBar && floatBar.shown && isKeyDownEffectiveTarget(event.target)) {
                var key = String.fromCharCode(event.keyCode).toLowerCase();
 
                Object.keys(prefs.floatBar.keys).some(function(action) {
                    if (action == 'enable') return;
                    if (key == prefs.floatBar.keys[action]) {
                        floatBar.open(null, action);
                        event.stopPropagation();
                        event.preventDefault();
                        return true;
                    }
                })
            }
        }
 
        matchedRule = getMatchedRule();
 
        // 添加自定义样式
        if (matchedRule && matchedRule.css) {
            var style = document.createElement('style');
            style.type = 'text/css';
            style.id = 'gm-picviewer-site-style';
            style.textContent = matchedRule.css;
            document.head.appendChild(style);
        }
 
        MPIV.loadRule();
 
        window.addEventListener('message', handleMessage, true);
 
        addPageScript();
 
        document.addEventListener('mouseover', globalMouseoverHandler, true);
 
        // 注册按键
        if (prefs.floatBar.keys.enable) {
            document.addEventListener('keydown', keydown, false);
        }
 
 
        var debug;  // 调试函数
 
        GM_config.init({
            id: 'pv-prefs',
            title: GM_config.create('a', {
                href: 'https://greasyfork.org/zh-CN/scripts/5199-picviewer-ce',
                target: '_blank',
                textContent: 'picviewerCE 设置',
                title: '点击此处打开主页'
            }),
            isTabs: true,
            skin: 'tab',
            frameStyle: {
                width: '480px',
                zIndex:'2147483648',
            },
            css: [
                "#pv-prefs input[type='text'] { width: 50px; } ",
                "#pv-prefs input[type='number'] { width: 50px; } ",
                "#pv-prefs .inline .config_var { margin-left: 6px; }",
                "#pv-prefs label.size { width: 205px; }",
                "#pv-prefs span.sep-x { margin-left: 0px !important; }",
                "#pv-prefs label.sep-x { margin-right: 5px; }",
                "#pv-prefs label.floatBar-key { margin-left: 20px; width: 100px; }",
                "#pv-prefs input.color { width: 120px; }",
            ].join('\n'),
            fields: {
                // 浮动工具栏
                'floatBar.position': {
                    label: '显示位置',
                    type: 'select',
                    options: {
                        'top left': '图片左上角',
                        'top right': '图片右上角',
                        'bottom right': '图片右下角',
                        'bottom left': '图片左下角'
                    },
                    "default": prefs.floatBar.position,
                    section: ['浮动工具栏'],
                },
                'floatBar.showDelay': {
                    label: '显示延时',
                    type: 'int',
                    "default": prefs.floatBar.showDelay,
                    after: ' 毫秒',
                },
                'floatBar.hideDelay': {
                    label: '隐藏延时',
                    type: 'int',
                    className: 'hideDelay',
                    "default": prefs.floatBar.hideDelay,
                    after: ' 毫秒'
                },
                'floatBar.forceShow.size.w': {
                    label: '非缩放图片，超过该尺寸，强制显示',
                    type: 'int',
                    className: 'size',
                    "default": prefs.floatBar.forceShow.size.w,
                    title: '在没有被缩放的图片上,但是大小超过下面设定的尺寸时,强制显示浮动框.(以便进行旋转,放大,翻转等等操作)..',
                    line: 'start',
                },
                'floatBar.forceShow.size.h': {
                    label: ' x ',
                    type: 'int',
                    className: 'sep-x',
                    after: ' 像素',
                    "default": prefs.floatBar.forceShow.size.h,
                    line: 'end',
                },
                'floatBar.minSizeLimit.w': {
                    label: '缩放图片，小于该尺寸，不显示',
                    type: 'int',
                    className: 'size',
                    "default": prefs.floatBar.minSizeLimit.w,
                    title: '就算是图片被缩放了(看到的图片被设定了width或者height限定了大小,这种情4况下),如果没有被缩放的原图片小于设定值,那么也不显示浮动工具栏',
                    line: 'start',
                },
                'floatBar.minSizeLimit.h': {
                    label: ' x ',
                    type: 'int',
                    className: 'sep-x',
                    after: ' 像素',
                    "default": prefs.floatBar.minSizeLimit.h,
                    line: 'end',
                },
                // 按键
                'floatBar.keys.enable': {
                    label: '启用以下4个快捷键',
                    type: 'checkbox',
                    "default": prefs.floatBar.keys.enable
                },
                'floatBar.keys.actual': {
                    label: '打开大图',
                    type: 'text',
                    className: 'floatBar-key',
                    "default": prefs.floatBar.keys.actual,
                    title: '当出现悬浮条时按下此按键打开大图'
                },
                'floatBar.keys.search': {
                    label: '查找原图',
                    type: 'text',
                    className: 'floatBar-key',
                    "default": prefs.floatBar.keys.search,
                    title: '当出现悬浮条时按下此按键查找原图'
                },
                'floatBar.keys.current': {
                    label: '打开当前图片',
                    type: 'text',
                    className: 'floatBar-key',
                    "default": prefs.floatBar.keys.current,
                    title: '当出现悬浮条时按下此按键打开当前显示的图片'
                },
                'floatBar.keys.magnifier': {
                    label: '打开放大镜观察',
                    type: 'text',
                    className: 'floatBar-key',
                    "default": prefs.floatBar.keys.magnifier,
                    title: '当出现悬浮条时按下此按键打开放大镜观察'
                },
                'floatBar.keys.gallery': {
                    label: '打开图库',
                    type: 'text',
                    className: 'floatBar-key',
                    "default": prefs.floatBar.keys.gallery,
                    title: '当出现悬浮条时按下此按键打开图库'
                },
 
                // 放大镜
                'magnifier.radius': {
                    label: '默认半径',
                    type: 'int',
                    "default": prefs.magnifier.radius,
                    section: ['放大镜'],
                    after: ' 像素'
                },
                'magnifier.wheelZoom.enabled': {
                    label: '启用滚轮缩放',
                    type: 'checkbox',
                    "default": prefs.magnifier.wheelZoom.enabled,
                },
                'magnifier.wheelZoom.range': {
                    label: '滚轮缩放的倍率',
                    type: 'textarea',
                    "default": prefs.magnifier.wheelZoom.range.join(', '),
                },
 
                // 图库
                'gallery.fitToScreen': {
                    label: '对图片进行缩放以适应屏幕',
                    type: 'checkbox',
                    "default": prefs.gallery.fitToScreen,
                    section: ['图库'],
                    title: '适应方式为contain，非cover'
                },
                'gallery.sidebarPosition': {
                    label: '缩略图栏位置',
                    type: 'select',
                    options: {
                        'bottom': '底部',
                        'right': '右侧',
                        'left': '左侧',
                        'top': '顶部'
                    },
                    "default": prefs.gallery.sidebarPosition,
                    line: 'start',
                },
                'gallery.sidebarSize': {
                    label: '高度',
                    type: 'int',
                    "default": prefs.gallery.sidebarSize,
                    title: '缩略图栏的高（如果是水平放置）或者宽（如果是垂直放置）',
                    after: ' 像素',
                    line: 'end',
                },
                'gallery.max': {
                    label: '最多预读 ',
                    type: 'number',
                    "default": prefs.gallery.max,
                    after: ' 张图片（前后各多少张）'
                },
                'gallery.autoZoom': {
                    label: '缩放改回 100%（chrome）',
                    type: 'checkbox',
                    "default": prefs.gallery.autoZoom,
                    title: '如果有放大，则把图片及 sidebar 部分的缩放改回 100%，增大可视面积（仅在 chrome 下有效）'
                },
                'gallery.descriptionLength': {
                    label: '注释的最大宽度',
                    type: 'int',
                    "default": prefs.gallery.descriptionLength,
                    after: ' 个字符'
                },
 
                // 图片窗口
                'imgWindow.fitToScreen': {
                    label: '适应屏幕，并且水平垂直居中',
                    type: 'checkbox',
                    "default": prefs.imgWindow.fitToScreen,
                    section: ['图片窗口'],
                    title: '适应方式为contain，非cover',
                },
                'imgWindow.close.defaultTool': {
                    label: '打开窗口时默认选择的工具',
                    type: 'select',
                    options: {
                        'hand': '抓手',
                        'rotate': '旋转',
                        'zoom': '放大镜',
                    },
                    "default": prefs.imgWindow.close.defaultTool,
                },
                'imgWindow.close.escKey': {
                    label: 'Esc键关闭',
                    type: 'checkbox',
                    "default": prefs.imgWindow.close.escKey,
                    line: 'start',
                },
                'imgWindow.close.dblClickImgWindow': {
                    label: '双击图片窗口关闭',
                    type: 'checkbox',
                    "default": prefs.imgWindow.close.dblClickImgWindow,
                },
                'imgWindow.close.clickOutside': {
                    label: '点击图片外部关闭',
                    type: 'select',
                    options: {
                        '': '无',
                        'click': '单击',
                        'dblclick': '双击',
                    },
                    "default": prefs.imgWindow.close.clickOutside,
                    line: 'end',
                },
                'imgWindow.overlayer.shown': {
                    label: '覆盖层',
                    type: 'checkbox',
                    "default": prefs.imgWindow.overlayer.shown,
                    line: 'start',
                },
                'imgWindow.overlayer.color': {
                    label: '颜色和不透明度',
                    type: 'text',
                    className: 'color',
                    "default": prefs.imgWindow.overlayer.color,
                    line: 'end'
                },
                'imgWindow.shiftRotateStep': {
                    label: '旋转时，按住shift键，旋转的步进',
                    type: 'int',
                    "default": prefs.imgWindow.shiftRotateStep,
                    after: ' 度'
                },
                'imgWindow.zoom.mouseWheelZoom': {
                    label: '滚轮缩放',
                    type: 'checkbox',
                    "default": prefs.imgWindow.zoom.mouseWheelZoom,
                },
                'imgWindow.zoom.range': {
                    label: '滚轮缩放比例',
                    type: 'textarea',
                    "default": prefs.imgWindow.zoom.range.join(', '),
                    title: '缩放比例.(不要出现负数,谢谢-_-!~)',
                    attr: {
                        "spellcheck": "false"
                    }
                },
 
                // 其它
                'waitImgLoad': {
                    label: '等图片完全载入后，才开始执行弹出放大等操作',
                    type: 'checkbox',
                    "default": prefs.waitImgLoad,
                    section: ['其它'],
                    title: '按住ctrl键的时候,可以临时执行和这个设定相反的设定'
                },
                'debug': {
                    label: '调试模式',
                    type: 'checkbox',
                    "default": prefs.debug
                },
                'firstEngine': {
                    label: '首选搜图引擎',
                    type: 'select',
                    options: {
                        "Tineye":"Tineye",
                        "Google":"Google",
                        "Baidu":"Baidu"
                    },
                    "default": prefs.firstEngine,
                },
            },
            events: {
                open: function(doc, win, frame) {
                },
                save: function() {
                    loadPrefs();
                }
            }
        });
 
 
        GM_registerMenuCommand('picviewerCE 设置', openPrefs);
 
        loadPrefs();
 
        function openPrefs() {
            GM_config.open();
        }
 
        function loadPrefs() {
            // 根据 GM_config 的 key 载入设置到 prefs
            Object.keys(GM_config.fields).forEach(function(keyStr) {
                var keys = keyStr.split('.');
                var lastKey = keys.pop();
 
                var lastPref = keys.reduce(function(previousValue, curKey) {
                    return previousValue[curKey];
                }, prefs) || prefs;
 
                var value = GM_config.get(keyStr);
                if (typeof value != 'undefined') {
                    // 特殊的
                    if (keyStr == 'magnifier.wheelZoom.range' || keyStr == 'imgWindow.zoom.range') {
                        lastPref[lastKey] = value.split(/[,，]\s*/).map(function(s) { return parseFloat(s)});
                    } else {
                        lastPref[lastKey] = value;
                    }
                }
            });
 
            debug = prefs.debug ? console.debug.bind(console) : function() {};
        }
 
    };
 
    function init2(){
        init(topObject,window,document,arrayFn,envir,storage,unsafeWindow);
    };
 
 
    //大致检测运行环境
    var envir={
        ie:typeof document.documentMode == 'number',
        firefox:typeof XPCNativeWrapper == 'function',
        opera:!!window.opera,
        chrome:!!window.chrome,
    };
 
    //ie的话，不支持 < ie9的版本
    if(envir.ie && document.documentMode < 9){
        return;
    };
 
 
    var arrayFn=(function(){
        //Array的某些方法对所有的类数组都有效，比如HTMLCollection,NodeList,DOMStringList.....
 
        //添加一个当函数返回true时，返回[array[index],index]，并且跳出循环的方法
        //类似做到 for 循环，在满足条件的时候直接break跳出的效果。
        if(typeof Array.prototype['_find']!='function'){
            Object.defineProperty(Array.prototype,'_find',{
                value:function(callback , thisArg){
                    if (this == null){
                        throw new TypeError( "this is null or not defined" );
                    };
 
                    if(typeof callback != 'function') {
                        throw new TypeError( callback + " is not a function" );
                    };
 
                    var i = 0,
                        l = this.length,
                        value,
                        hasOwnProperty=Object.prototype.hasOwnProperty
                    ;
 
 
                    while(i<l){
                        if(hasOwnProperty.call(this,i)){
                            value = this[i];
                            if(callback.call( thisArg, value, i, this )===true){
                                return [value,i,this];
                            };
                        };
                        i++;
                    };
                },
                writable:true,
                enumerable:false,//与原生方法一样不可枚举，维护网页和谐。。。
                configurable:true,
            });
        };
 
        var arrayProto=Array.prototype;
        return {
            _find:arrayProto._find,
            slice:arrayProto.slice,
            forEach:arrayProto.forEach,
            some:arrayProto.some,
            every:arrayProto.every,
            map:arrayProto.map,
            filter:arrayProto.filter,
            indexOf:arrayProto.indexOf,
            lastIndexOf:arrayProto.lastIndexOf,
        };
 
    })();
 
 
    var storage={
        supportGM: typeof GM_getValue=='function' && typeof GM_getValue('a','b')!='undefined',//chrome的gm函数式空函数
        mxAppStorage:(function(){//傲游扩展储存接口
            try{
                return window.external.mxGetRuntime().storage;
            }catch(e){
            };
        })(),
        operaUJSStorage:(function(){//opera userjs全局存储接口
            try{
                return window.opera.scriptStorage;
            }catch(e){
            };
        })(),
        setItem:function(key,value){
            if(this.operaUJSStorage){
                this.operaUJSStorage.setItem(key,value);
            }else if(this.mxAppStorage){
                this.mxAppStorage.setConfig(key,value);
            }else if(this.supportGM){
                GM_setValue(key,value);
            }else if(window.localStorage){
                window.localStorage.setItem(key,value);
            };
        },
        getItem:function(key){
            var value;
            if(this.operaUJSStorage){
                value=this.operaUJSStorage.getItem(key);
            }else if(this.mxAppStorage){
                value=this.mxAppStorage.getConfig(key);
            }else if(this.supportGM){
                value=GM_getValue(key);
            }else if(window.localStorage){
                value=window.localStorage.getItem(key);
            };
            return value;
        },
    };
 
    function getUrl(url, callback, onError){
        GM_xmlhttpRequest({
            method: 'GET',
            url: url,
            onload: callback,
            onerror: onError
        });
    }
 
    function setSearchState(words){
        if(words)console.info(words);
        var searchState = document.querySelector('.pv-pic-search-state');
        if(searchState)searchState.innerHTML=words;
    }
 
    var searchSort=["Tineye","Google","Baidu"];
    function sortSearch(){
        for(var i=0;i<searchSort.length;i++){
            if(searchSort[i]==prefs.firstEngine){
                searchSort.splice(i,1);
                break;
            }
        }
        searchSort.unshift(prefs.firstEngine);
    }
 
    function searchImgByImg(imgSrc, callBack, onError, noneResult, searchFrom){
        let srcs=[];
        var searchBaidu=function(){
            setSearchState("百度识图开始……");
            getUrl("http://image.baidu.com/n/same?queryImageUrl="+encodeURIComponent(imgSrc)+"&isguessword=1&rn=30&fr=pc&pn=0&sort=size", function(d){
                let baiduJson;
                try{
                    baiduJson=JSON.parse(d.responseText);
                }catch(e){
                    setSearchState("未找到原图");
                    setTimeout(function(){
                        setSearchState("");
                    },2000);
                    searchNext();
                    return;
                }
                if(baiduJson.data[0]){
                    srcs=[];
                    for(let imgData of baiduJson.data){
                        if(srcs.length>2)break;
                        srcs.push(imgData.objURL);
                    }
                    setSearchState("百度识图结束，共找到"+srcs.length+"张匹配图片");
                    callBackFun(srcs);
                }else{
                    setSearchState("未找到原图");
                    setTimeout(function(){
                        setSearchState("");
                    },2000);
                    searchNext();
                    return;
                }
            }, onError);
        };
        var searchGoogle=function(){
            setSearchState("谷歌识图开始……");
            getUrl("https://www.google.com/searchbyimage?safe=off&image_url="+encodeURIComponent(imgSrc), function(d){
                let googleHtml=document.implementation.createHTMLDocument('');
                googleHtml.documentElement.innerHTML = d.responseText;
                let sizeUrl=googleHtml.querySelector("div.card-section>div>div>span.gl>a");
                if(sizeUrl){
                    getUrl("https://www.google.com"+sizeUrl.getAttribute("href"), function(d){
                        googleHtml.documentElement.innerHTML = d.responseText;
                        let imgs=googleHtml.querySelectorAll("div.rg_meta");
                        if(imgs.length==0){searchNext();return;}
                        srcs=[];
                        for(let img of imgs){
                            if(srcs.length>2)break;
                            let jsonData=JSON.parse(img.innerHTML);
                            srcs.push(jsonData.ou);
                        }
                        setSearchState("谷歌识图结束，共找到"+srcs.length+"张匹配图片");
                        callBackFun(srcs);
                    }, onError);
                }else{
                    searchNext();
                }
            }, onError);
        };
        var searchTineye=function(){
            setSearchState("Tineye识图开始……");
            getUrl("https://www.tineye.com/search?url="+encodeURIComponent(imgSrc)+"&sort=size", function(d){
                let tineyeHtml=document.implementation.createHTMLDocument('');
                tineyeHtml.documentElement.innerHTML = d.responseText;
                let searchImg=tineyeHtml.querySelectorAll("div.matches>div>div>div>div:first-of-type>p.hidden-xs:first-of-type>a");
                if(searchImg.length>0){
                    srcs=[];
                    for(let img of searchImg){
                        if(srcs.length>2)break;
                        srcs.push(img.href);
                    }
                    setSearchState("Tineye识图结束，共找到"+srcs.length+"张匹配图片");
                    callBackFun(srcs);
                }else{
                    searchNext();
                }
            }, onError);
        };
        var searchNext=function(){
            searchFrom++;
            if(searchFrom<=3)switchSearch();
            else if(noneResult)noneResult();
        };
        var callBackFun=function(srcs){
            callBack(srcs, searchFrom);
        };
        if(!searchFrom)searchFrom=1;
        var switchSearch=function(){
            switch(searchSort[searchFrom-1]){
                case "Baidu":
                    searchBaidu();
                    break;
                case "Google":
                    searchGoogle();
                    break;
                case "Tineye":
                    searchTineye();
                    break;
                default:
                    searchTineye();
                    break;
            }
        };
        switchSearch();
    }
 
    init2();
 
})(this,window,document,(typeof unsafeWindow=='undefined'? window : unsafeWindow));