Fast-Codeforces

使您更方便地使用Codeforces

As of 2019-12-15. See the latest version.

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        Fast-Codeforces
// @namespace   Violentmonkey Scripts
// @version     0.2.0
// @match       *://codeforces.com/*
// @match       *://codeforc.es/*
// @match       *://codeforces.ml/*
// @description 使您更方便地使用Codeforces
// @author      xcxxcx
// @require     https://code.jquery.com/jquery-3.4.1.min.js
// ==/UserScript==
const Name="fast-codeforces-",JPar=JSON.parse,JStr=JSON.stringify;
function gets(dir){
	if((Name+dir) in localStorage ===false||localStorage[Name+dir]==="undefined")return void 0;
	return JPar(localStorage[Name+dir]);
}
function puts(dir,val){
	if(val!==void 0)localStorage[Name+dir]=JStr(val);
	else localStorage[Name+dir]="undefined";
}
var user=$(".lang-chooser>div:eq(1)>a:eq(0)").html(),user_csrf=$("[name=X-Csrf-Token]").attr("content");
function Ajax(url){
	return $.ajax({
		async:false,
		method:"GET",
		url:url,
		data:{},
		success:function(e){return e;},
		error:function(e){console.log("ERROR");return e;}
	}).responseText;
}
function show_pre(){$("#pageContent,#pre-bar").show();}
function hide_pre(){$("#pageContent,#pre-bar").hide();}
function show_sub(){$("#fc-submit").show();$("#fc-menu-submit").css("background-color","#AAAAAA");}
function hide_sub(){$("#fc-submit").hide();$("#fc-menu-submit").css("background-color","white");}
function getsub(){
	var sub=gets("submit");
	if(sub!==void 0){$("#fc-submit-form").html(sub);return;}
	sub=$(Ajax("/problemset/submit")).find(".submit-form");
	sub.find(".aceEditorTd").html(`<textarea style="width:600px;height:300px;resize:none" name="source"></textarea>`);
	$("#fc-submit-form").html(sub.html());puts("submit",sub.html());
}
function init_sub(){
	$("#pageContent").after($(`<div id="fc-submit" class="content-with-sidebar" style="display:none;margin:1em;padding-top:1em;min-height:20em">
<form id="fc-submit-form" method="post" action="/problemset/submit?csrf_token=`+user_csrf+`" enctype="multipart/form-data" target="_blank">
</form></div>`));
	getsub();
}
var prolist=gets("problem"),focpro;
if(prolist===void 0){puts("problem",[]);prolist=[];}
function showpro(ID){$("#fc-problem-menu-"+ID).addClass("focpro");$("#fc-problem-"+ID+",#fc-bar-problem-"+ID).show();}
function hidepro(ID){$("#fc-problem-menu-"+ID).removeClass("focpro");$("#fc-problem-"+ID+",#fc-bar-problem-"+ID).hide();}
function show_pro(){$("#fc-problem,#fc-bar-problem").show();$("#fc-menu-problem").css("background-color","#AAAAAA");}
function hide_pro(){$("#fc-problem,#fc-bar-problem").hide();$("#fc-menu-problem").css("background-color","white");}
function getpro(url){
	x=$(Ajax("/problemset/problem/"+url));
	return [x.find(`.problem-statement`),x.find(`#sidebar`)];
}
function addpro(x,y){
	$("#fc-problem-menu-add").before(`<li id="fc-problem-menu-`+x+y+`"><a>`+x+y+`</a><a style="bor">X</a></li>`);
	var node=$("#fc-problem-menu-"+x+y).children();
	$(node[0]).click(function(){
		if(focpro!==void 0)hidepro(focpro);
		showpro(this.innerHTML);focpro=this.innerHTML;
	});
	$(node[1]).click(function(){
		var fa=$(this).parent(),ID=fa.children()[0].innerHTML;
		if(focpro===ID){
			var pos=prolist.indexOf(ID);prolist.splice(pos,1);
			if(pos===prolist.length)--pos;
			if(pos!==-1){focpro=prolist[pos];showpro(focpro);}
			else focpro=void 0;
		}
		fa.remove();$("#fc-problem-"+ID).remove();
	});
	var pro=getpro(x+"/"+y);
	$("#fc-problem-contain").append(pro[0].attr("id","fc-problem-"+x+y));
	$("#fc-bar-problem").append(pro[1].attr("id","fc-bar-problem-"+x+y));
	if(focpro!==void 0)hidepro(focpro);
	showpro(x+y);focpro=x+y;prolist.push(focpro);
	MathJax.Hub.Queue(["Typeset", MathJax.Hub,"fc-problem-"+x+y]);
}
function newpro(){
	var ID=prompt("请输入题号");
	if(ID===""||ID===null)return;
	if(typeof ID!=="string"){alert("请输入正确的题号");return;}
	var A=ID.substr(ID.length-1);ID=parseFloat(ID.substr(0,ID.length-1));
	if(parseInt(ID)!==ID){alert("请输入正确的题号");return;}
	addpro(ID,A);
}
function init_pro(){
	$("#pageContent").after($(`<div id="fc-problem" class="content-with-sidebar" style="display:none;margin:1em;padding-top:1em;min-height:20em">
<div class="second-level-menu">
	<style>
		.focpro{background-color:grey;}
		#fc-problem-menu>li{border-radius:12px;}
	</style>
	<ul class="second-level-menu-list" id="fc-problem-menu">
		<li id="fc-problem-menu-add"><a>+add problem</a></li>
	</ul>
</div>
<div class="problemindexholder">
	<div class="ttypography" id="fc-problem-contain"></div>
</div>
</div>`));
	var link=$("link"),sideCSS=false,statCSS;
	for(var i=0;i<link.leng;++i){
		switch($(link[i]).attr("href")){
			case "//sta.codeforces.com/s/63369/css/sidebar-menu.css":sideCSS=true;break;
			case "//sta.codeforces.com/s/31021/css/status.css":statCSS=true;break;
		}
	}
	if(!sideCSS)$("head").append($(`<link rel="stylesheet" href="//sta.codeforces.com/s/37050/css/sidebar-menu.css"/>`));
	if(!statCSS)$("head").append($(`<link rel="stylesheet" href="//sta.codeforces.com/s/31021/css/status.css"/>`));
	$("#fc-bar-menu").after(`<div id="fc-bar-problem" style="display:none"></div>`);
	$("#fc-problem-menu-add").click(newpro);
}
var eles={
	"problem":{name:"查看题目",init:init_pro,func:function(){},hide:hide_pro,show:show_pro},
	"submit":{name:"提交代码",init:init_sub,func:function(){},hide:hide_sub,show:show_sub},
};
var list=["problem","submit"],len=list.length,ele="pre";
function CreateEle(id){
	var obj=eles[id];obj.init();
	$("#fc-stop").before($(`<a id="fc-menu-`+id+`" style="border-radius:3px;background-color:white">`+obj.name+`</a><br/>`));
	$("#fc-menu-"+id).click(function(){
		var ID=$(this).attr("id").substr(8);eles[ID].func();
		if(ele===ID){eles[ID].hide();show_pre();ele="pre";}
		else if(ele==="pre"){hide_pre();eles[ID].show();ele=ID;}
		else{eles[ele].hide();eles[ID].show();ele=ID;}
	});
}
function showLogin(){
	$("#fc-menu").html(`<a href="javascript:;" id="fc-start">开始使用Fast Codeforces</a>`);
	$("#fc-start").click(function(){
		if(confirm("您确认要使用Fast Codeforces?")===false)return;
		puts("using",true);alert("授权成功");showMain();
	});
}
function showMain(){
	$("#fc-menu").html(`<a href="javascript:;" id="fc-stop">停止使用Fast Codeforces</a>`);
	$("#fc-stop").click(function(){
		if(confirm("您确认要停止使用Fast Codeforces?")===false)return;
		puts("using",false);alert("Fast Codeforces已停止");showLogin();
		$("#fc-problem").remove();$("#fc-submit").remove();
	});
	for(var i=0;i<len;++i)CreateEle(list[i]);
}
$(document).ready(function(){
	if($("#sidebar").length===0)return;
	var sidebar=$("#sidebar").html();
	$("#sidebar").html(`<div id="fc-bar"><div class="roundbox sidebox" id="fc-bar-menu">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="caption titled">&rarr; Fast Codeforces<div class="top-links"><a href="https://github.com/xcx-xcx/fast-codeforces">帮助</a></div></div>
<div style="padding:0.5em">
	<div id="fc-menu" style="text-align:center;border-bottom:1px solid rgb(185,185,185);margin:0 -0.5em 0.5em -0.5em;padding:0 1em 0.5em 1em"></div>
</div></div></div><div id="pre-bar">`+sidebar+`</div>`);
	if($(".header-bell").length===0)$("#fc-menu").html(`<span>请登录后再使用!</span>`);
	else if(gets("using"))showMain();
	else showLogin();
});