// ==UserScript==
// @name         NGA Re-collapse Button
// @namespace    https://greasyfork.org/zh-CN/scripts/28612-nga-re-collapse-button
// @version      1.0.0.20170815
// @icon         http://bbs.nga.cn/favicon.ico
// @description  NGA 折叠内容展开后可再次收起
// @author       AgLandy
// @include      /^https?://(bbs\.ngacn\.cc|nga\.178\.com|bbs\.nga\.cn)/.+/
// @grant        none
// @require      http://cdn.bootcss.com/jquery/3.2.1/jquery.min.js
// @downloadURL none
// ==/UserScript==

//发布地址：http://bbs.ngacn.cc/read.php?tid=11313839

var $Q = jQuery.noConflict();

(function(){

    var c = $Q('.collapse_btn');
    for(i = 0; c.length > i; i++){
        $Q(c[i]).children('button').attr('onclick', $Q(c[i]).children('button').attr('onclick').replace(/^t.+,"/, 'cBtnClick(event,"'));
        $Q(c[i]).children('button').css({width:'1.2em', height:'1.2em', padding:'0', outline:'none', 'font-family':'Serif', 'line-height':'1.1em'});
    }

    var sc = "\
    var $Q = jQuery.noConflict();\
    function cBtnClick(e, c, n){\
        var b = e.target, dB = $Q(b).parent(), dC = dB.next();\
        if(dC.html() == ''){\
            $Q(b).html('-');\
            dC.css({'overflow-y':'hidden','transition':'all 0.5s ease-in-out','-o-transition':'all 0.5s ease-in-out','-moz-transition':'all 0.5s ease-in-out','-webkit-transition':'all 0.5s ease-in-out','-ms-transition':'all 0.5s ease-in-out','max-height':'0px','opacity':'0'});\
            dB.css('background', __COLOR.border2);\
            ubbcode.collapse.load(dC[0], c, n);\
            setTimeout(function(){\
                dC.html('<div>' + dC.html() + '</div>');\
                dC.css({'max-height':(dC.children().outerHeight(true) + 'px'),'opacity':'1'});\
                setTimeout(function(){dC.css({'max-height':'none'});}, 500);\
            }, 100);\
            return;\
        }\
        if($Q(b).html() == '+'){\
            $Q(b).html('-');\
            dB.css('background', __COLOR.border2);\
            dC.children().css('display', '');\
            dC.css({'max-height':(dC.children().outerHeight(true) + 'px'),'opacity':'1'});\
            setTimeout(function(){dC.css({'max-height':'none'});}, 500);\
        }\
        else{\
            $Q(b).html('+');\
            dB.css('background', 'none');\
            dC.css('max-height', (dC.children().outerHeight(true) + 'px'));\
            setTimeout(function(){dC.css({'max-height':'0px','opacity':'0'});}, 10);\
            setTimeout(function(){dC.children().css('display', 'none');}, 510);\
        }\
    }\
    ";

    $Q('<script type="text/javascript" />').html(sc).appendTo('head');

})();