// ==UserScript==
// @name         MCBBS Extender
// @namespace    https://i.zapic.cc
// @version      beta-0.0.3
// @description  MCBBS行为拓展/样式修复
// @author       Zapic
// @match        https://www.mcbbs.net/*
// @downloadURL none
// ==/UserScript==

(function() {
    var conf = {
        //美化代码块样式
        "fixCodeBlock": true,
        //修复代码块"复制代码"换行消失的问题
        "fixCodeCopy": true,
        //修复表格排版内含有多媒体导致元素戳破表格的问题
        "fixTableLayout": true,
        //后台轮询新消息
        "QueryMessage": true,
        //后台轮询消息间隔,单位为秒
        "QueryMessageInterval": 60,
        //板块页点击"下一页"按钮是否记住当前页码
        "rememberPage":true,
        //美化右侧回到顶部按钮
        "animateGoToTopButton":true,
        //固定顶栏在顶部
        "pinnedTopBar":true
    };
    var jq = jQuery;
    if(conf.fixCodeBlock){
        jq("body").append("<style id=\"fixCodeBlock\">.hljs > ::-webkit-scrollbar {background: #00000000;height: 5px}.hljs > ::-webkit-scrollbar-thumb{background:#0000005c;border-radius: 3px;}.pl .blockcode{overflow-x:auto;padding: 10px 0 20px 10px;}.blockcode ol{overflow-x: unset;}.hljs{display:unset;}.pl .blockcode em{position: absolute;margin-top: 3px;}.pl .blockcode ol{margin: 0 0 0px -10px!important;padding: 0 0 0px 20px !important;}</style>");
    }
    if(conf.fixTableLayout){
        jq("body").append("<style id=\"fixTableLayout\">.pl table.t_table{table-layout: fixed;}.pl table.t_table[style*=\"px\"]{table-layout: auto;}</style>");
    }
    if(conf.fixCodeCopy){
        copycode = function(obj) {
        if (!obj)
            return false;
        var count = obj.children[0].children.length;
        var code = "";
        for(i=0;i<count;i++){
            code += obj.children[0].children[i].innerText + "\r\n";
        }
        setCopy(code, '代码已复制到剪贴板');
    };
    }
    if(conf.QueryMessage){
        setInterval(function(){
            jq.get("https://www.mcbbs.net/",function(d){var dom = jq(d);
                var el = dom.filter("script[src*=html5notification]");
                var ut = dom.find(".user_tools");
                var pum = dom.filter("#myprompt_menu");
                jq(".user_tools").html(ut.html());
                jq("#myprompt_menu").html(pum.html());
                jq("title").text(NOTICECURTITLE);
                if(el.length !== 0){
                if(!window.Html5notification){jq.get(el[0].src,function(s){eval(s);});}
                    var s = el.nextUntil("div").last().text();
                    eval(s);
                    noticeTitle();
                }
            });
        },conf.QueryMessageInterval*1000);
    }
    if(conf.rememberPage){
        if($('autopbn')){
            var npbtn=$('autopbn')
            var dc = npbtn.onclick;
            npbtn.onclick = function(){
                var nextpageurl = this.getAttribute('rel').valueOf();
                var curpage = parseInt(this.getAttribute('curpage').valueOf());
                this.setAttribute('curpage',curpage+1);
                nextpageurl = nextpageurl.replace(/&page=\d+/, '&page=' + (curpage + 1));
                history.replaceState(null,null,nextpageurl);
                dc();
            };
        }
    }
    if(conf.animateGoToTopButton){
        jq("body").append("<style id=\"GoToTopButton\">#scrolltop{opacity:0;transform:scale(0.7);pointer-events:none;bottom: 270px;transform-origin: 0 50%;visibility:visible;margin-left:-5px;}</style>");
        showTopLink = function() {
            var ft = $('ft');
            if (ft) {
                var scrolltop = $('scrolltop');
                var viewPortHeight = parseInt(document.documentElement.clientHeight);
                var scrollHeight = parseInt(document.body.getBoundingClientRect().top);
                var basew = parseInt(ft.clientWidth);
                var sw = scrolltop.clientWidth;
                if(scrolltop.style.transitionDuration=="") scrolltop.style.transitionDuration=".1s";
                if (basew < 1000) {
                    var left = parseInt(fetchOffset(ft)['left']);
                    left = left < sw ? left * 2 - sw : left;
                    scrolltop.style.left = (basew + left + 44) + 'px';
                } else {
                    scrolltop.style.left = 'auto';
                    scrolltop.style.right = 0;
                }
                if (BROWSER.ie && BROWSER.ie < 7) {
                    scrolltop.style.top = viewPortHeight - scrollHeight - 150 + 'px';
                }
                if (scrollHeight < -100) {
                    scrolltop.style.opacity=1;
                    scrolltop.style.transform="scale(1)";
                    scrolltop.style.pointerEvents="unset";
                    scrolltop.style.marginLeft="unset";
                } else {
                    scrolltop.style.opacity="";
                    scrolltop.style.transform="";
                    scrolltop.style.pointerEvents="";
                    scrolltop.style.marginLeft="";
                }
            }
        }
        showTopLink();
    }
    if(conf.pinnedTopBar){
        jq("body").append("<style id=\"pinnedTopBar\">#toptb{position: fixed;width: 100%;z-index:9999;top:0;}.mc_map_wp{padding-top: 45px;}#scbar_type_menu{top:38px!important}#user_info_menu,#myprompt_menu,#usertools_menu {position:fixed!important;top:47px!important}</style>");
    }
})();