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vjudge+background

为vJudge设置背景

当前为 2023-08-16 提交的版本，查看 最新版本。

// ==UserScript==
// @name         vjudge+background
// @namespace    vjudge-plus-v2
// @version      1.8.3
// @description  为vJudge设置背景
// @author       axototl (original by Suntra)
// @match        https://vjudge.net/*
// @noframes
// @icon         https://vjudge.net/favicon.ico
// @license      AGPLv3 or later
// @grant        GM_addStyle
// @grant        GM_registerMenuCommand
// @grant        GM_getValue
// @grant        GM_setValue
// @run-at       document-idle
// ==/UserScript==

// license text: https://www.gnu.org/licenses/agpl-3.0.txt

function reloader() {
    if (!navigator.onLine) {
        alert("离线状态，无法重加载，修改无法即刻生效");
        return;
    }
    alert("设置成功，刷新生效");
    location.reload();
}

(function() {
    //在基于 Blink 浏览器上检测是否为正常返回
    if (navigator.userAgent.includes("Chrome") && performance.getEntries()[0].responseStatus != 200) return;
    // 设置背景
    let back = GM_getValue("background", "https://cdn.luogu.com.cn/images/bg/fe/Day_And_Night_1.jpg");
    GM_registerMenuCommand("设置背景URL", () => {
        back = window.prompt("请输入背景URL", back);
        GM_setValue("background", back);
        reloader();
    });
    let col = GM_getValue("col", "#b93e3e");
    const tes = /^#([0-9a-f]{3,4}|[0-9a-f]{6})$/i;
    function getColor(t) {
        do {
            tmp = window.prompt("请输入颜色的Hexcode\n(比如#b93e3e)\n建议选择背景主色调的反差色", t);
        } while (!tes.test(t));
        return t;
    }
    GM_registerMenuCommand("设置文字颜色", () => {
        GM_setValue("col", getColor(col));
        reloader();
    });
    let collink = GM_getValue("collink", "#ff4c8c");
    GM_registerMenuCommand("设置链接背景颜色", () => {
        GM_setValue("collink", getColor(collink));
        reloader();
    });
    document.body.innerHTML = "<div style='height: 60px'></div>" + document.body.innerHTML; // 防止顶栏和页面内容重叠
    // User defined style
    GM_addStyle("body {background: url("+back+") no-repeat center top fixed;background-size: 100% 100%;-moz-background-size: 100% 100%;color: "+col+";}"+
        "a:focus, a:hover {color: "+collink+";text-decoration: underline;}");
    // Global Style
    GM_addStyle(
        ".navbar {border-radius:0rem;background-color: rgba(0,0,0,65%) !important;position: fixed;top: 0;left: 0;z-index: 1000;width: 100%;}"+
        "scrollbar-width: none"+
        "#prob-ads {display: none;}"+ // 屏蔽广告
        "#img-support {display: none;}"+ // 屏蔽 sponsor 栏广告
        ".card, .list-group-item, .btn-secondary, .page-link, .page-item.disabled .page-link, .dropdown-menu {background-color: rgba(255,255,255,65%);}"+
        ".modal-content {background-color: rgba(255,255,255,90%);}"+
        ".form-control {background-color: rgba(255,255,255,50%);}"+
        ".tab-content {background-color: rgba(255,255,255,50%);border: 2px solid #eceeef;border-radius: 0.25rem;padding: 20px;}"+
        "table {background-color: rgba(255,255,255,70%);border-radius: 0.25rem;}"
    );

    document.querySelector("body > div.body-footer").innerHTML += '<p style="color: #3fb98b">Theme powered by vjudge+background (original by <a href="https://greasyfork.org/scripts/448801">vjudge+</a>)</p>';
})();