洛谷题目页面改为NOI/NOIP/CSP经典PDF风格，享受沉浸（致郁）式刷题。
// ==UserScript==
// @name 洛谷 - 梦回考场
// @namespace http://tampermonkey.net/
// @version 0.5
// @description 洛谷题目页面改为NOI/NOIP/CSP经典PDF风格，享受沉浸（致郁）式刷题。
// @author Jerrycyx (Luogu UID 545986)
// @match https://www.luogu.com.cn/problem/*
// @license MPL-2.0
// @grant GM_addStyle
// @require https://scriptcat.org/lib/513/2.1.0/ElementGetter.js#sha256=aQF7JFfhQ7Hi+weLrBlOsY24Z2ORjaxgZNoni7pAz5U=
// ==/UserScript==
(function () {
"use strict";
if (CheckUrl()) {
console.log("[Luogu-RER] URL passed");
MainScript();
}
function CheckUrl() {
const path = window.location.pathname;
const validPrefixes = ["P", "B", "CF", "SP", "AT", "UVA", "T", "U"];
const regex = /^\/problem\/([^/]+)$/;
const match = path.match(regex);
if (!match) return false;
if (!validPrefixes.some(prefix => match[1].startsWith(prefix))) return false;
return true;
}
async function MainScript() {
console.log("[Luogu-RER] MainScript Running.");
const mainElement = await elmGetter.get("#app > .main-container");
mainElement.classList.add("main-element");
mainElement.id = "Main-element";
const [oringinalProblemHeader, oringinalSidebar, problemElement] = await elmGetter.get([
".theme-bg:nth-child(1) > .theme-fg > .columba-content-wrap.header-layout",
"main > .columba-content-wrap > .sidebar-container > .side",
"main > .columba-content-wrap > .sidebar-container > .main > .problem"
], mainElement);
problemElement.classList.add("problem-element");
problemElement.id = "Problem-element";
(async function () {
removeSome(1, "#app > nav");
removeSome(1, "#app > .top-bar");
removeSome(1, "#app > .page-loading");
removeSome(1, "#app > .nav-scrollbar");
GlobalStyles();
ProcessStrong();
ProcessA();
ProcessTable();
ProcessSampleBlocks()
.then(() => removeAll(".io-sample > .io-sample-block button.lform-size-small", problemElement));
ProcessCodeBlocks()
.then(() => {
removeAll(".code-container > button.copy-button", problemElement);
removeAll(".line-numbers-rows", problemElement);
});
ProcessTitles()
.then(ProcessImages);
BuildToolbar()
.then(() => {
removeSome(1, ".problem-block-actions", problemElement);
oringinalSidebar.remove();
});
BuildStat()
.then(BuildHeader)
.then(() => removeSome(2, ".theme-bg", mainElement));
})();
async function GlobalStyles() {
console.log("[Luogu-RER] GlobalStyles Running.");
elmGetter.each("#Problem-element p, #Problem-element ul, #Problem-element ol, #Problem-element .attachments", problemElement, e => {
e.classList.add("custom-common-text");
});
GM_addStyle(`
#Problem-element {
--common-font-family: KaTeX_Main, SimSun, serif;
--strong-font-family: KaTeX_Main, SimHei, sans-serif;
}
.custom-common-text {
font-family: var(--common-font-family);
font-weight: normal;
}
.custom-strong-text {
font-family: var(--strong-font-family);
font-weight: normal;
}
`);
GM_addStyle(`
#Main-element {
margin: 12px 0;
width: auto;
}
#Main-element > main {
background-color: unset;
}
@media (prefers-color-scheme: light) {
body {
background-color: #e6e6e6;
}
}
@media (prefers-color-scheme: dark) {
body {
background-color: #333333;
}
}
#Main-element > main > .columba-content-wrap {
padding: 0px;
}
#Main-element > main > .columba-content-wrap > .sidebar-container {
margin: unset;
}
#Problem-element {
color: black;
width: 100%
max-width: 1191px;
margin: 0 auto;
padding: 77px 141px 156px 141px;
border-radius: 0px;
box-shadow: 0 1px 10px 0px #1a1a1a1a;
}
#Problem-element p:not(li > p) {
text-indent: 2em;
}
#Problem-element p, #Problem-element ul, #Problem-element ol, #Problem-element .attachments {
font-size: 24px;
line-height: 1.6;
margin: unset;
}
#Problem-element ul, #Problem-element ol {
margin-left: 1em;
}
#Problem-element :is(ul, ol) :is(ul, ol) {
margin-left: unset;
}
#Problem-element :is(ul, ol) :is(ul, ol) li::marker {
content: "– ";
}
.katex:not(.katex-display .katex) {
font-size: 1em;
}
#Problem-element ::selection{
background-color: #99c1da; //TODO
mix-blend-mode: multiply;
color: inherit;
}
#Problem-element :focus-visible {
outline: 3px dashed black;
}
`);
}
async function ProcessSampleBlocks() {
console.log("[Luogu-RER] ProcessSampleBlocks Running.");
elmGetter.each("h2.lfe-h2", problemElement, h2 => {
if (h2.textContent.trim() === "输入输出样例") { h2.remove(); }
});
elmGetter.each(".io-sample > .io-sample-block b", problemElement, b => {
const content = b.textContent.trim();
const regex = /^(输入|输出)\s*#(\d+)$/;
const match = content.match(regex);
if (match) {
const type = match[1];
const num = match[2];
const h2 = document.createElement("h2");
h2.classList.add("lfe-h2");
h2.textContent = `样例 ${num} ${type}`;
b.parentNode.parentNode.replaceChild(h2, b.parentNode);
}
});
}
async function ProcessCodeBlocks() {
console.log("[Luogu-RER] ProcessCodeBlocks Running.");
async function ProcessSingleCodeBlocks(e) {
e.classList.add("code-block");
var lines = e.textContent.split("\n");
const fragment = document.createDocumentFragment();
lines.forEach((lineText, idx) => {
const lineContainer = document.createElement("div");
lineContainer.classList.add("custom-code-line");
const lineNumber = document.createElement("span");
lineNumber.classList.add("custom-line-number");
lineNumber.textContent = idx + 1;
const contentSpan = document.createElement("span");
contentSpan.classList.add("custom-code-content");
contentSpan.textContent = lineText === "" ? "\u200B" : lineText;
lineContainer.appendChild(lineNumber);
lineContainer.appendChild(contentSpan);
fragment.appendChild(lineContainer);
});
e.innerHTML = "";
e.appendChild(fragment);
}
elmGetter.each(".io-sample-block pre", problemElement, ProcessSingleCodeBlocks);
//elmGetter.each("pre > code[class^='language-'], pre > code[class*=' language-']", problemElement, ProcessSingleCodeBlocks);
GM_addStyle(`
#Problem-element > .lfe-marked-wrap {
overflow: visible;
}
#Problem-element > .io-sample {
margin: 0px;
display: block;
}
#Problem-element > .io-sample > .io-sample-block {
margin: 0px;
}
#Problem-element pre, #Problem-element code, .custom-pre-line-number {
font-family: Consolas !important; /* SB Luogu don't use that f**king "!important" */
background-color: unset;
}
#Problem-element pre, #Problem-element code {
font-size: 24px;
line-height: 1.5;
}
#Problem-element pre {
margin: 27px -5px 62px 17px;
}
.code-block {
position: relative;
overflow: visible;
}
#Problem-element .custom-line-number {
position: absolute;
text-align: right;
right: 100%;
font-size: 20px;
color: #949494;
padding-right: 14px;
padding-top: 4px;
}
#Problem-element code {
border: none;
}
#Problem-element pre {
border: solid 1px blue;
border-radius: 0;
padding: 5px;
}
`);
}
async function ProcessTitles() {
console.log("[Luogu-RER] ProcessTitles Running.");
elmGetter.each("h1, h2, h3, h4, h5, h6", problemElement, h => {
h.classList.add("H123456", "custom-strong-text");
if (!h.classList.contains("custom-title")) {
const text = h.textContent;
if (text.length > 0) {
if (text[0] !== "【") {
h.insertBefore(document.createTextNode("【"), h.firstChild);
}
if (text[text.length - 1] !== "】") {
h.appendChild(document.createTextNode("】"));
}
}
}
});
GM_addStyle(`
.custom-title {
text-align: center;
}
.H123456 {
font-weight: normal;
}
#Problem-element .H123456:not(.custom-title) {
text-indent: 1em;
}
#Problem-element h1 {
font-size: 36px;
margin: 37px 0px;
border-bottom: unset;
padding-bottom: unset;
}
#Problem-element h2 {
margin-top: 43px;
margin-bottom: 18px;
font-size: 26px;
border-bottom: unset;
padding-bottom: unset;
}
#Problem-element > p.problem-block-actions:not(#problem-element :first-child) {
margin-top: 43px;
margin-bottom: 18px;
}
#Problem-element h3 {
margin-top: 24px;
margin-bottom: 7px;
font-size: 25px;
}
#Problem-element h4, #Problem-element h5, #Problem-element h6 {
margin-top: 10px;
margin-bottom: 7px;
font-size: 24px;
}
`);
}
async function ProcessImages() {
console.log("[Luogu-RER] ProcessImages Running.");
elmGetter.each("p, .H123456", problemElement, e => {
function isValidChainImage(e) {
if (e.tagName === 'IMG') return true;
let current = e;
while (current) {
const childNodes = current.childNodes;
if (childNodes.length !== 1 || childNodes[0].nodeType !== 1) {
return false;
}
current = current.firstElementChild;
if (current && current.tagName === 'IMG') {
return true;
}
}
}
if (isValidChainImage(e)) e.classList.add("single-line-image");
});
GM_addStyle(`
.single-line-image {
text-indent: 0 !important;
text-align: center;
}
`)
}
async function ProcessStrong() {
console.log("[Luogu-RER] ProcessStrong Running.");
elmGetter.each("strong", problemElement, strong => {
strong.classList.add("custom-strong-text");
const fragment = document.createDocumentFragment();
const processNode = (node) => {
if (node.nodeType === Node.TEXT_NODE) {
const text = node.textContent;
const segments = text.split(/([\u4e00-\u9fa5])/);
segments.forEach(segment => {
if (!segment) return;
if (/^[\u4e00-\u9fa5]$/.test(segment)) {
const span = document.createElement("span");
span.classList.add("custom-hanzi-dot");
span.textContent = segment;
const svgNS = "http://www.w3.org/2000/svg";
const svg = document.createElementNS(svgNS, "svg");
svg.setAttribute("class", "custom-dot");
svg.setAttribute("viewBox", "0 0 10 10");
const circle = document.createElementNS(svgNS, "circle");
circle.setAttribute("cx", "5");
circle.setAttribute("cy", "5");
circle.setAttribute("r", "3");
circle.setAttribute("fill", "black");
svg.appendChild(circle);
span.appendChild(svg);
fragment.appendChild(span);
} else {
fragment.appendChild(document.createTextNode(segment));
}
});
} else if (node.nodeType === Node.ELEMENT_NODE) {
fragment.appendChild(node.cloneNode(true));
}
};
strong.childNodes.forEach(node => processNode(node));
strong.innerHTML = "";
strong.appendChild(fragment);
});
GM_addStyle(`
.custom-hanzi-dot {
position: relative;
}
.custom-hanzi-dot svg.custom-dot {
height: 0.16em;
position: absolute;
left: 0.5em;
bottom: -0.05em;
transform: translateX(-50%);
pointer-events: none;
}
`);
}
async function ProcessA() {
console.log("[Luogu-RER] ProcessA Running.");
elmGetter.each("a", problemElement, e => {
e.classList.add("custom-strong-text");
});
GM_addStyle(`
#Problem-element a {
color: black;
font-style: italic;
transition: unset;
}
#Problem-element a:hover {
filter: none;
}
`)
}
async function ProcessTable() {
console.log("[Luogu-RER] ProcessTable Running.");
elmGetter.each("table > thead > tr > th, table > tbody > tr > td", problemElement, e => {
e.classList.add("custom-common-text");
});
GM_addStyle(`
#Problem-element table {
display: table;
margin: 25px auto;
width: fit-content;
}
#Problem-element table > thead > tr {
border-bottom: 3px solid black;
}
#Problem-element table > thead > tr > th, #Problem-element table > tbody > tr > td {
font-size: 24px;
border: 1px solid black;
}
#Problem-element table {
border-top: 4px solid black;
border-bottom: 4px solid black;
border-left: 2px solid white;
border-right: 2px solid white;
}
`)
}
async function BuildToolbar() {
GM_addStyle(`
@media (prefers-color-scheme: light) {
#Custom-toolbar {
--toolbar-bg: #f7f7f7;
--toolbar-border: #bebebe;
--toolbar-text: #262626;
--toolbar-button-on: #e5e5e5;
--toolbar-button-on-bottom: #0072c9;
--toolbar-button-hover: #eaeaea;
--toolbar-button-active: #efefef;
--toolbar-separator-color: #b6b6b6;
--toolbar-shadow: 0px 4.8px 10.8px rgba(0,0,0,0.13), 0px 0px 4.7px rgba(0,0,0,0.11);
}
#Custom-toolbar-setting {
--setting-menu-bg: #ffffff;
--setting-item-hover: #ebebeb;
--setting-menu-hr: #e0e0e0
}
}
@media (prefers-color-scheme: dark) {
#Custom-toolbar {
--toolbar-bg: #3b3b3b;
--toolbar-border: #4f4f4f;
--toolbar-text: #ffffff;
--toolbar-button-on: #4d4d4d;
--toolbar-button-on-bottom: #63ade5;
--toolbar-button-hover: #484848;
--toolbar-button-active: #424242;
--toolbar-separator-color: #737373;
--toolbar-shadow: rgba(0, 0, 0, 0.26) 0px 4.8px 10.8px, rgba(0, 0, 0, 0.22) 0px 0px 4.7px;
}
#Custom-toolbar-setting {
--setting-menu-bg: #292929;
--setting-item-hover: #313131;
--setting-menu-hr: #545454;
}
}
`)
console.log("[Luogu-RER] BuildToolbar Running.");
const toolbar = document.createElement("div");
toolbar.id = "Custom-toolbar";
toolbar.classList.add("custom-toolbar");
const toolbarLeft = document.createElement("div");
toolbarLeft.id = "Custom-toolbar-left";
toolbarLeft.classList.add("custom-toolbar-left");
const toolbarCenter = document.createElement("div");
toolbarCenter.id = "Custom-toolbar-center";
toolbarCenter.classList.add("custom-toolbar-center");
const toolbarRight = document.createElement("div");
toolbarRight.id = "Custom-toolbar-right";
toolbarRight.classList.add("custom-toolbar-right");
toolbar.append(toolbarLeft, toolbarCenter, toolbarRight);
const documentApp = document.querySelector("#app");
documentApp.insertBefore(toolbar, documentApp.firstChild);
function RemoveAllVueDataAttributes(e) {
Array.from(e.attributes).forEach(attr => {
if (attr.name.startsWith('data-v-')) {
e.removeAttribute(attr.name);
}
});
}
function removeAllAttributes(e) {
[...e.attributes].forEach(attr => e.removeAttribute(attr.name));
}
async function InitToolbarLeftLargeButton(selector, parent, id, stateUpdater) {
const button = parent.querySelector(selector);
removeAllAttributes(button);
button.classList.add("custom-toolbar-button", "custom-toolbar-button-large");
button.id = id;
toolbarLeft.appendChild(button);
if (stateUpdater) stateUpdater(button);
return button;
}
const submitButton = await InitToolbarLeftLargeButton(
"div > div > button[type='button']",
oringinalProblemHeader,
"Custom-toolbar-submit",
btn => btn.classList.toggle(
"custom-toolbar-button-on",
window.location.hash === "#submit"
)
);
new MutationObserver(() => submitButton.classList.toggle(
"custom-toolbar-button-on",
window.location.hash === "#submit"
)).observe(document, { subtree: true, childList: true });
const leftSeparator1 = document.createElement("div");
leftSeparator1.classList.add("custom-toolbar-separator");
toolbarLeft.appendChild(leftSeparator1);
async function BuildModalButton(id, modalIndex) {
const button = await InitToolbarLeftLargeButton(
"div > div > button[type='button']",
oringinalProblemHeader,
id
);
const modal = document.querySelectorAll("#app > div.modal")[modalIndex];
const updateState = () => button.classList.toggle(
"custom-toolbar-button-on",
!modal.classList.contains("hide")
);
updateState();
new MutationObserver(updateState).observe(modal, {
attributes: true,
attributeFilter: ["class"]
});
return button;
}
await BuildModalButton("Custom-toolbar-add-list", 0);
await BuildModalButton("Custom-toolbar-copy-problem", 1);
const leftSeparator2 = document.createElement("div");
leftSeparator2.classList.add("custom-toolbar-separator");
toolbarLeft.appendChild(leftSeparator2);
problemElement.querySelectorAll(".problem-block-actions > *").forEach(actionButton => {
const text = actionButton.textContent.trim();
if (text != "展开" && text != "进入 IDE 模式" && text != "显示翻译" && text != "隐藏翻译") {
removeAllAttributes(actionButton);
actionButton.className = "custom-toolbar-a";
toolbarLeft.appendChild(actionButton);
}
if (text == "显示翻译" || text == "隐藏翻译") {
}
});
const rightActionMap = {
"退出比赛模式": { id: "Custom-toolbar-a-exit" },
" 提交记录": { id: "Custom-toolbar-a-record" },
" 查看题解": { id: "Custom-toolbar-a-solution" },
" 题目反馈": { id: "Custom-toolbar-a-feedback" }
};
oringinalSidebar.querySelectorAll("div a").forEach(e => {
RemoveAllVueDataAttributes(e);
e.classList.add("custom-toolbar-a");
const config = rightActionMap[e.textContent];
if (config) {
e.id = config.id;
toolbarRight.appendChild(e);
}
});
const rightSeparator1 = document.createElement("div");
rightSeparator1.classList.add("custom-toolbar-separator");
toolbarRight.appendChild(rightSeparator1);
const setting = document.createElement("div");
setting.id = "Custom-toolbar-setting";
setting.classList.add("custom-toolbar-setting");
toolbarRight.appendChild(setting);
const settingButton = document.createElement("button");
settingButton.id = "Custom-toolbar-setting-button";
settingButton.classList.add("custom-toolbar-setting-button", "custom-toolbar-button");
function CreateSettingSVG() {
const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
svg.setAttribute("width", "20");
svg.setAttribute("height", "20");
svg.setAttribute("viewBox", "0 0 20 20");
const path = document.createElementNS("http://www.w3.org/2000/svg", "path");
path.setAttribute("d", "M 1.91 7.38 A 8.5 8.5 0 0 1 3.7 4.3 a 0.5 0.5 0 0 1 0.54 -0.13 l 1.92 0.68 a 1 1 0 0 0 1.32 -0.76 l 0.36 -2 a 0.5 0.5 0 0 1 0.4 -0.4 a 8.53 8.53 0 0 1 3.55 0 c 0.2 0.04 0.35 0.2 0.38 0.4 l 0.37 2 a 1 1 0 0 0 1.32 0.76 l 1.92 -0.68 a 0.5 0.5 0 0 1 0.54 0.13 a 8.5 8.5 0 0 1 1.78 3.08 c 0.06 0.2 0 0.4 -0.15 0.54 l -1.56 1.32 a 1 1 0 0 0 0 1.52 l 1.56 1.32 a 0.5 0.5 0 0 1 0.15 0.54 a 8.5 8.5 0 0 1 -1.78 3.08 a 0.5 0.5 0 0 1 -0.54 0.13 l -1.92 -0.68 a 1 1 0 0 0 -1.32 0.76 l -0.37 2 a 0.5 0.5 0 0 1 -0.38 0.4 a 8.53 8.53 0 0 1 -3.56 0 a 0.5 0.5 0 0 1 -0.39 -0.4 l -0.36 -2 a 1 1 0 0 0 -1.32 -0.76 l -1.92 0.68 a 0.5 0.5 0 0 1 -0.54 -0.13 a 8.5 8.5 0 0 1 -1.78 -3.08 a 0.5 0.5 0 0 1 0.15 -0.54 l 1.56 -1.32 a 1 1 0 0 0 0 -1.52 L 2.06 7.92 a 0.5 0.5 0 0 1 -0.15 -0.54 Z m 1.06 0 l 1.3 1.1 a 2 2 0 0 1 0 3.04 l -1.3 1.1 c 0.3 0.79 0.71 1.51 1.25 2.16 l 1.6 -0.58 a 2 2 0 0 1 2.63 1.53 l 0.3 1.67 a 7.55 7.55 0 0 0 2.5 0 l 0.3 -1.67 a 2 2 0 0 1 2.64 -1.53 l 1.6 0.58 a 7.5 7.5 0 0 0 1.24 -2.16 l -1.3 -1.1 a 2 2 0 0 1 0 -3.04 l 1.3 -1.1 a 7.5 7.5 0 0 0 -1.25 -2.16 l -1.6 0.58 a 2 2 0 0 1 -2.63 -1.53 l -0.3 -1.67 a 7.55 7.55 0 0 0 -2.5 0 l -0.3 1.67 A 2 2 0 0 1 5.81 5.8 l -1.6 -0.58 a 7.5 7.5 0 0 0 -1.24 2.16 Z M 7.5 10 a 2.5 2.5 0 1 1 5 0 a 2.5 2.5 0 0 1 -5 0 Z m 1 0 a 1.5 1.5 0 1 0 3 0 a 1.5 1.5 0 0 0 -3 0 Z");
path.setAttribute("fill", getComputedStyle(toolbar).getPropertyValue("--toolbar-text"));
svg.appendChild(path);
return svg;
}
settingButton.appendChild(CreateSettingSVG());
setting.appendChild(settingButton);
const settingMenu = document.createElement("div");
settingMenu.id = "Custom-toolbar-setting-menu";
settingMenu.classList.add("custom-toolbar-setting-menu", "custom-toolbar-setting-menu-hidden");
setting.appendChild(settingMenu);
let globalClickListener = null;
settingButton.addEventListener("click", function (e) {
e.stopPropagation();
settingMenu.classList.remove("custom-toolbar-setting-menu-hidden");
if (globalClickListener) {
document.removeEventListener("click", globalClickListener);
}
globalClickListener = function (event) {
const isClickInsideMenu = settingMenu.contains(event.target);
const isClickOnButton = settingButton.contains(event.target);
if (!isClickInsideMenu || isClickOnButton) {
settingMenu.classList.add("custom-toolbar-setting-menu-hidden");
document.removeEventListener("click", globalClickListener);
globalClickListener = null;
}
};
setTimeout(() => {
document.addEventListener("click", globalClickListener);
}, 0);
});
function BuildSettingItemSwitch(text, onToggle, initialState = false) {
const settingItem = document.createElement("button");
settingItem.classList.add("custom-toolbar-setting-item");
const checkbox = document.createElement("span");
checkbox.classList.add("custom-toolbar-setting-checkbox");
checkbox.innerHTML = '<svg style="width: 1.25em; height: 1.25em; vertical-align: middle; fill: currentColor; overflow: hidden;" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg"><path d="M365.624235 692.484607 165.695786 492.556159 99.05297 559.198975 365.624235 825.77024 936.850128 254.54537 870.207311 187.902554Z" fill="#b3b3b3"></path></svg>';
const textSpan = document.createElement("span");
textSpan.classList.add("custom-toolbar-setting-text");
textSpan.textContent = text;
const content = document.createElement("div");
content.classList.add("custom-toolbar-setting-content");
content.appendChild(checkbox);
content.appendChild(textSpan);
settingItem.appendChild(content);
let enabled = initialState;
checkbox.style.visibility = enabled ? "visible" : "hidden";
onToggle(enabled, text);
settingItem.addEventListener("click", () => {
enabled = !enabled;
checkbox.style.visibility = enabled ? "visible" : "hidden";
onToggle(enabled, text);
});
settingMenu.appendChild(settingItem);
return {
getState: () => enabled,
setState: (newState) => {
enabled = newState;
checkbox.style.visibility = enabled ? "visible" : "hidden";
onToggle(enabled, text);
},
toggle: () => settingItem.click(),
element: settingItem
};
}
function SwitchStyle(enabled, styleId, enabledStyle, disabledStyle) {
let styleElement = document.getElementById(styleId);
if (!styleElement) {
styleElement = document.createElement("style");
styleElement.id = styleId;
document.head.appendChild(styleElement);
}
const cssRule = enabled ? enabledStyle : disabledStyle;
styleElement.textContent = cssRule;
}
BuildSettingItemSwitch("锁定工具栏", (enabled) => {
SwitchStyle(enabled, "fix-toolbar-style",
"#Custom-toolbar {\
position: sticky;\
top: 0;\
}",
"#Custom-toolbar {\
position: fixed;\
top: 0;\
box-shadow: var(--toolbar-shadow)\
}");
let isNearTop = true, hideTimer = null;
if (enabled) {
showToolbar();
if (hideTimer) {
clearTimeout(hideTimer);
hideTimer = null;
}
}
function showToolbar() {
toolbar.style.top = "0";
if (hideTimer) {
clearTimeout(hideTimer);
hideTimer = null;
}
}
function hideToolbar() {
toolbar.style.top = "-41px";
}
function optimizedThrottle(func, limit) {
let lastRan = 0;
let ticking = false;
return function () {
const context = this;
const args = arguments;
const now = Date.now();
if (now - lastRan >= limit) {
if (!ticking) {
requestAnimationFrame(function () {
func.apply(context, args);
lastRan = now;
ticking = false;
});
ticking = true;
}
}
};
}
const handleMouseMove = optimizedThrottle(function (e) {
if (enabled) return;
const mouseY = e.clientY;
const newState = mouseY <= 41;
if (newState !== isNearTop) {
isNearTop = newState;
if (isNearTop) {
showToolbar();
} else {
if (hideTimer) {
clearTimeout(hideTimer);
hideTimer = null;
}
hideTimer = setTimeout(hideToolbar, 2000);
}
}
}, 100);
window.addEventListener('mousemove', handleMouseMove);
}, true);
BuildSettingItemSwitch("样例复制时带行号", (enabled) => {
SwitchStyle(enabled, "line-number-selection-style",
"#Problem-element .custom-line-number { user-select: all; }",
"#Problem-element .custom-line-number { user-select: none; }"
);
}, false);
BuildSettingItemSwitch("显示时空限制", (enabled) => {
SwitchStyle(enabled, "limit-show-style",
"",
".custom-stat { display: none; }"
);
}, true);
const settingHr1 = document.createElement("hr");
settingHr1.classList.add("custom-setting-hr");
settingMenu.appendChild(settingHr1);
const settingItemInfo = document.createElement("button");
settingItemInfo.classList.add("custom-toolbar-setting-item");
settingItemInfo.id = "Custom-setting-item-info";
settingItemInfo.textContent = "查看题目详细信息（暂不可用）";
settingMenu.appendChild(settingItemInfo);
GM_addStyle(`
#Custom-toolbar {
background-color: var(--toolbar-bg);
border-bottom: 1px solid var(--toolbar-border);
z-index: 10;
width: 100%;
height: 41px;
padding: 0px 4px;
display: flex;
justify-content: space-between;
align-items: center;
box-sizing: border-box;
transition: top 0.5s;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI';
}
#Custom-toolbar-left, #Custom-toolbar-center, #Custom-toolbar-right {
height: 100%;
display: flex;
align-items: center;
}
#Custom-toolbar-left {
justify-content: flex-start;
margin-right: auto;
}
#Custom-toolbar-center {
justify-content: center;
margin-left: auto;
margin-right: auto;
}
#Custom-toolbar-right {
justify-content: flex-end;
margin-left: auto;
}
#Custom-toolbar-setting-menu {
position: absolute;
right: 2px;
width: max-content;
}
.custom-toolbar-button:not(.custom-toolbar-button-large), .custom-toolbar-a {
font-size: 15px;
}
.custom-toolbar-button-large {
font-size: 16px;
}
.custom-toolbar-button, .custom-toolbar-a {
cursor: default;
border: 2px solid transparent;
border-radius: 2px;
padding: 0 8px;
margin: 2px 0px;
max-height: 100%;
display: flex;
white-space: pre-wrap;
justify-content: center;
align-items: center;
color: var(--toolbar-text);
background-color: var(--toolbar-bg);
outline: none;
transition: background-color 0.1s ease-in-out;
}
.custom-toolbar-button {
height: 32px;
}
.custom-toolbar-a {
height: 28px;
}
.custom-toolbar-a a {
color: var(--toolbar-text);
outline: none;
}
.custom-toolbar-button-on {
background-color: var(--toolbar-button-on);
border-bottom-color: var(--toolbar-button-on-bottom);
}
.custom-toolbar-button:hover, .custom-toolbar-a:hover {
background-color: var(--toolbar-button-hover);
filter: unset;
}
.custom-toolbar-button:active, .custom-toolbar-a:active {
background-color: var(--toolbar-button-active);
}
.custom-toolbar-separator {
margin: 0 4px;
width: 1px;
height: 16px;
background-color: var(--toolbar-separator-color);
}
#app > .dropdown.shown {
z-index: 12;
}
#Custom-toolbar-setting-button {
cursor: pointer;
}
#Custom-toolbar-setting-menu {
display: flex;
flex-direction: column;
background-color: var(--setting-menu-bg);
padding: 5px 2px;
border-radius: 10px;
box-shadow: var(--toolbar-shadow);
font-size: 15px;
transition: opacity 0.1s ease, visibility 0.1s ease;
}
.custom-toolbar-setting-menu-hidden {
opacity: 0;
visibility: hidden;
}
.custom-toolbar-setting-checkbox {
margin-right: 0.5em;
}
.custom-toolbar-setting-item {
width: auto;
text-align: left;
padding: 5px 10px;
margin: 0 4px;
background-color: transparent;
color: var(--toolbar-text);
border: unset;
border-radius: 4px;
}
.custom-toolbar-setting-item:hover {
background-color: var(--setting-item-hover);
}
.custom-setting-hr {
border: 1px var(--setting-menu-hr) solid;
width: 100%;
margin: 5px 0;
}
`);
}
async function BuildStat() {
const [timeLimit, memoryLimit] = (await elmGetter.get([
".stat > .field:nth-child(3) > .stat-text.value",
".stat > .field:nth-child(4) > .stat-text.value"
], oringinalProblemHeader)).map(e => e.textContent.trim());
console.log("[Luogu-RER] BuildStat Running.");
const stat = document.createElement("div");
stat.classList.add("custom-stat", "custom-common-text");
const timeStat = document.createElement("div");
timeStat.classList.add("custom-time-stat");
timeStat.textContent = "时间限制：" + timeLimit;
const memoryStat = document.createElement("div");
memoryStat.classList.add("custom-memory-stat");
memoryStat.textContent = "空间限制：" + memoryLimit;
stat.append(timeStat, memoryStat);
problemElement.insertBefore(stat, problemElement.firstChild);
GM_addStyle(`
.custom-stat {
font-size: 24px;
display: flex;
flex-wrap: wrap;
justify-content: center;
}
.custom-time-stat, .custom-memory-stat {
margin-left: 1em;
margin-right: 1em;
}
`);
return stat;
}
async function BuildHeader(stat) {
console.log("[Luogu-RER] BuildHeader Running.");
const titleContent = (await elmGetter.get("h1.lfe-h1", oringinalProblemHeader)).textContent;
const title = document.createElement("h1");
title.classList.add("lfe-h1", "custom-title");
title.textContent = titleContent.substring(titleContent.indexOf(" ") + 1);
problemElement.insertBefore(title, stat);
const customHeaderElement = document.createElement("header");
customHeaderElement.classList.add("custom-header", "custom-common-text");
problemElement.insertBefore(customHeaderElement, title);
const leftText = document.createElement("div");
leftText.classList.add("custom-header-left-text");
leftText.textContent = "洛谷 Luogu";
customHeaderElement.appendChild(leftText);
const rightText = document.createElement("div");
rightText.classList.add("custom-header-right-text");
rightText.textContent = titleContent;
customHeaderElement.appendChild(rightText);
const hrElement = document.createElement("hr");
hrElement.classList.add("custom-header-hr");
customHeaderElement.appendChild(hrElement);
GM_addStyle(`
.custom-header {
font-size: 20px;
display: flex;
flex-wrap: wrap;
margin: 0px 0px 48px 0px;
}
.custom-header-left-text, .custom-header-right-text {
margin: 0px;
}
.custom-header-left-text {
margin-right: auto;
}
.custom-header-hr {
flex-basis: 100%;
border: 1px solid #bfbfbf;
margin: 0px;
}
`);
}
}
async function removeAll(selector, container = document) {
elmGetter.each(selector, container, e => { e.remove(); });
}
async function removeSome(number, selector, container = document) {
for (let i = 1; i <= number; i++) {
const e = await elmGetter.get(selector, container);
e.remove();
}
}
})();
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