NGA Re-collapse Button

NGA 折叠内容展开后可再次收起

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         NGA Re-collapse Button
// @namespace    https://greatest.deepsurf.us/zh-CN/scripts/28612-nga-re-collapse-button
// @version      1.2.0.20180312
// @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      https://greatest.deepsurf.us/scripts/39014-nga-user-script-loader/code/NGA%20User%20Script%20Loader.js
// ==/UserScript==

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

(function(){

    function init($){

        let r = commonui.reCollapseButton = {
            f: function(e, c, n){
                if(r.timer != undefined){
                    clearTimeout(r.timer);
                    delete r.timer;
                }
                let b = e.target,
                    dB = $(b).parent(),
                    dC = dB.next();
                if(dC.html() == ''){
                    $(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);
                    let t = $.now();
                    r.mo[t] = new MutationObserver(function(){
                        setTimeout(function(){
                            $('<div />').append(dC.contents()).appendTo(dC);
                            dC.css({'max-height':(dC.children().outerHeight(true) + 'px'),'opacity':'1'});
                            r.timer = setTimeout(function(){
                                dC.css({'max-height':'none'});
                                delete r.timer;
                            }, 500);
                            r.mo[t].disconnect();
                            delete r.mo[t];
                        },100);
                    });
                    r.mo[t].observe(dC[0], {
                        childList: true,
                        subtree: true,
                    });
                    ubbcode.collapse.load(dC[0], c, n);
                    return;
                }
                if($(b).html() == '+'){
                    $(b).html('-');
                    dB.css('background', __COLOR.border2);
                    dC.children().css('display', '');
                    dC.css({'max-height':(dC.children().outerHeight(true) + 'px'),'opacity':'1'});
                    r.timer = setTimeout(function(){
                        dC.css({'max-height':'none'});
                        delete r.timer;
                    }, 500);
                }
                else{
                    $(b).html('+');
                    dB.css('background', '');
                    dC.css('max-height', (dC.children().outerHeight(true) + 'px'));
                    setTimeout(function(){
                        dC.css({'max-height':'0px','opacity':'0'});
                    }, 10);
                    r.timer = setTimeout(function(){
                        dC.children().css('display', 'none');
                        delete r.timer;
                    }, 510);
                }
            },
            r: function(){
                $('.collapse_btn button[onclick^="t"]').each(function(i, b){
                    b = $(b);
                    b.attr('onclick', b.attr('onclick').replace(/^t.+,"/, 'commonui.reCollapseButton.f(event,"'));
                    b.css({width:'1.2em', height:'1.2em', padding:'0', outline:'none', 'font-family':'Serif', 'line-height':'1.1em'});
                });
            },
            mo: {
                body : new MutationObserver(function(){
                    r.r();
                })
            }
        };

        r.r();

        r.mo.body.observe($('body')[0], {
            childList: true,
            subtree: true,
        });

    }

    (function check(){
        try{
            init(commonui.userScriptLoader.$);
        }
        catch(e){
            setTimeout(check, 50);
        }
    })();

})();