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Sửa lỗi dòng trống thừa khi copy trên CodePTIT. Tạo nút copy nhanh Testcase và Mã bài + Tên bài được chuẩn hóa
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// ==UserScript==
// @name CodePTIT Copier
// @namespace https://github.com/nvbangg/CodePTIT_Copier
// @version 1.4.5
// @description Sửa lỗi dòng trống thừa khi copy trên CodePTIT. Tạo nút copy nhanh Testcase và Mã bài + Tên bài được chuẩn hóa
// @author nvbangg (https://github.com/nvbangg)
// @copyright Copyright (c) 2025 Nguyễn Văn Bằng (nvbangg, github.com/nvbangg)
// @homepage https://github.com/nvbangg/CodePTIT_Copier
// @homepageURL https://chromewebstore.google.com/detail/codeptit-copier/ncckkgpgiplcmbmobjlffkbaaklohhbo
// @match https://code.ptit.edu.vn/*
// @icon https://raw.githubusercontent.com/nvbangg/CodePTIT_Copier/main/src/icon.png
// @grant GM_registerMenuCommand
// @run-at document-start
// @license MIT
// ==/UserScript==
//! 📌 Nên Dùng bản extension để có đầy đủ tính năng, tùy chỉnh settings:
//! https://chromewebstore.google.com/detail/codeptit-copier/ncckkgpgiplcmbmobjlffkbaaklohhbo
//! 🌐 Xem hướng dẫn chi tiết tại:
//! 🏠 Homepage: https://github.com/nvbangg/CodePTIT_Copier
(() => {
"use strict";
const WORD_SEPARATOR = "";
const ICONS = {
copy: '<svg width="25" height="25" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M9 3h10a2 2 0 0 1 2 2v10"/><rect x="3" y="8" width="13" height="13" rx="2"/></svg>',
check:
'<svg width="25" height="25" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>',
rowCopy:
'<svg width="25" height="25" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M9 3h10a2 2 0 0 1 2 2v10"/><rect x="3" y="8" width="13" height="13" rx="2"/><path d="M7 13h7"/><path d="M7 17h6"/></svg>',
};
const addStyles = () => {
const style = document.createElement("style");
style.textContent = `
.copy-btn,.title-copy-btn,.row-copy-btn{background:rgba(30,144,255,.4);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;width:25px;height:25px;border-radius:5px;padding:2px;position:relative;outline:none!important;user-select:none}
.copy-btn{position:absolute;top:0;right:0}
.title-copy-btn{margin-right:8px;top:-3px;display:inline-flex;vertical-align:middle}
.row-copy-btn{position:absolute;left:-26px;top:0;background:rgba(255,165,0,.5)}
.copied{background:rgba(50,205,50,1)!important}`;
document.head.appendChild(style);
};
const $ = (s) => document.querySelector(s);
const $$ = (s) => [...document.querySelectorAll(s)];
const isBeta = () => location.pathname.includes("/beta/problems");
const hasText = (el) => el?.textContent?.trim();
const preventEvent = (e) => (e.preventDefault(), e.stopPropagation());
const showCopied = (button) => {
const originalContent = button.innerHTML;
button.innerHTML = ICONS.check;
button.classList.add("copied");
setTimeout(() => {
button.innerHTML = originalContent;
button.classList.remove("copied");
}, 800);
};
const getTestcase = (cell) =>
(cell.innerText ?? "")
.replace(
/[\u00A0\u1680\u180E\u2000-\u200B\u202F\u205F\u3000\uFEFF]/g,
" "
)
.trimEnd();
const copy = (text, button) => (
navigator.clipboard.writeText(text), showCopied(button)
);
const copyRow = (row, button) => {
const cells = row.querySelectorAll("td");
if (cells.length < 2) return;
const [input, output] = [getTestcase(cells[0]), getTestcase(cells[1])];
input.trim() && navigator.clipboard.writeText(input);
setTimeout(
() => output.trim() && navigator.clipboard.writeText(output),
400
);
showCopied(button);
};
const formatTitle = (title) =>
!title
? ""
: title
.normalize("NFD")
.replace(/[\u0300-\u036f]|[đĐ]/g, (m) =>
m === "đ" ? "d" : m === "Đ" ? "D" : ""
)
.replace(/[^A-Za-z0-9]+/g, " ")
.trim()
.replace(/\S+/g, (w) => w[0].toUpperCase() + w.slice(1).toLowerCase())
.replace(/ /g, WORD_SEPARATOR);
const addCellBtn = (cell) => {
if (!hasText(cell) || cell.dataset.copyAdded) return;
window.getComputedStyle(cell).position === "static" &&
(cell.style.position = "relative");
cell.dataset.copyAdded = "true";
const btn = document.createElement("button");
btn.className = "copy-btn";
btn.innerHTML = ICONS.copy;
btn.addEventListener(
"click",
(e) => (
preventEvent(e),
((content) => content.trim() && copy(content, e.currentTarget))(
getTestcase(cell)
)
)
);
cell.appendChild(btn);
};
const addRowBtn = (row) => {
if (!row || row.dataset.rowCopyAdded) return;
const cells = row.querySelectorAll("td");
if (cells.length < 2 || !hasText(cells[0]) || !hasText(cells[1])) return;
window.getComputedStyle(cells[0]).position === "static" &&
(cells[0].style.position = "relative");
row.dataset.rowCopyAdded = "true";
const btn = document.createElement("button");
btn.className = "row-copy-btn";
btn.innerHTML = ICONS.rowCopy;
btn.addEventListener(
"click",
(e) => (preventEvent(e), copyRow(row, e.currentTarget))
);
cells[0].appendChild(btn);
};
const addTitleBtn = (titleEl) => {
if (!titleEl || titleEl.dataset.copyAdded) return;
titleEl.dataset.copyAdded = "true";
const btn = document.createElement("button");
btn.className = "title-copy-btn";
btn.innerHTML = ICONS.copy;
btn.addEventListener(
"click",
(e) => (
preventEvent(e),
(() => {
const code = (location.pathname.split("/").pop() || "").trim();
const titleText = (titleEl.textContent || "").trim();
const joiner = WORD_SEPARATOR || "_";
const name = [code, formatTitle(titleText)]
.filter(Boolean)
.join(joiner);
name && copy(name, e.currentTarget);
})()
)
);
titleEl.insertBefore(btn, titleEl.firstChild);
};
const processTables = (tables) => {
tables.forEach((t) => {
t.querySelectorAll("tbody p").forEach(
(p) => (p.outerHTML = `<div>${p.innerHTML}</div>`)
);
t.querySelectorAll("tr:not(:first-child)").forEach((row) => {
row.querySelectorAll("td").forEach(addCellBtn);
addRowBtn(row);
});
});
};
const processLegacyPage = () => {
if (!/\/student\/question\/[A-Za-z0-9_]+/.test(location.pathname)) return;
const container = $(".submit__des");
if (!container) return;
addTitleBtn($(".submit__nav p span a.link--red"));
const tables = [...container.querySelectorAll("table")];
processTables(tables);
};
const processBetaPage = () => {
if (!/\/beta\/problems\/[A-Za-z0-9_]+/.test(location.pathname)) return;
addTitleBtn($$("h2").find(hasText));
processTables($$("table"));
};
const cleanup = () => {
$$(".copy-btn, .title-copy-btn, .row-copy-btn").forEach((btn) =>
btn.remove()
);
$$("[data-copy-added], [data-row-copy-added]").forEach(
(el) => (
el.removeAttribute("data-copy-added"),
el.removeAttribute("data-row-copy-added")
)
);
};
const process = () => (
cleanup(), isBeta() ? processBetaPage() : processLegacyPage()
);
let observerTimer;
const observer = new MutationObserver(() => {
clearTimeout(observerTimer);
observerTimer = setTimeout(() => {
observer.lastUrl !== location.href
? ((observer.lastUrl = location.href), process())
: (isBeta() ? processBetaPage : processLegacyPage)();
}, 500);
});
observer.lastUrl = location.href;
const start = () => {
addStyles();
try {
GM_registerMenuCommand("🏠 GitHub Homepage", () => {
window.open("https://github.com/nvbangg/CodePTIT_Copier", "_blank");
});
GM_registerMenuCommand("🌐 View in Chrome Web Store", () => {
window.open(
"https://chromewebstore.google.com/detail/codeptit-copier/ncckkgpgiplcmbmobjlffkbaaklohhbo",
"_blank"
);
});
} catch {}
observer.observe(document.documentElement, {
childList: true,
subtree: true,
});
process();
};
document.readyState !== "loading"
? start()
: document.addEventListener("DOMContentLoaded", start);
})();