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See: https://leetcode.com/discuss/general-discussion/136588/Is-there-any-keyboard-shortcut-to-run-code-and-submit-solution/346347
// ==UserScript==
// @name LeetCode - Bring back Submit Code shortcut (Ctrl/Cmd + Enter)
// @name:zh-CN LeetCode - 加回提交代码快捷键（Ctrl/Cmd + Enter）
// @name:zh-HK LeetCode - 加回提交代碼快捷鍵（Ctrl/Cmd + Enter）
// @name:zh-TW LeetCode - 加回提交代碼快捷鍵（Ctrl/Cmd + Enter）
// @description See: https://leetcode.com/discuss/general-discussion/136588/Is-there-any-keyboard-shortcut-to-run-code-and-submit-solution/346347
// @description:zh-CN 参考：https://leetcode.com/discuss/general-discussion/136588/Is-there-any-keyboard-shortcut-to-run-code-and-submit-solution/346347
// @description:zh-HK 參考：https://leetcode.com/discuss/general-discussion/136588/Is-there-any-keyboard-shortcut-to-run-code-and-submit-solution/346347
// @description:zh-TW 參考：https://leetcode.com/discuss/general-discussion/136588/Is-there-any-keyboard-shortcut-to-run-code-and-submit-solution/346347
// @namespace RainSlide
// @author RainSlide
// @icon https://assets.leetcode.com/static_assets/public/icons/favicon-192x192.png
// @version 1.0
// @match *://leetcode.com/problems/*
// @grant none
// ==/UserScript==
"use strict";
const debug = msg => console.debug("[LeetCode - Submit Code shortcut] ".conact(msg));
const addShortcut = () => {
const codeArea = document.querySelector('div[data-cy="code-area"]');
if (codeArea !== null) {
// see: https://developer.mozilla.org/en-US/docs/Web/CSS/%3Ascope
const selectInCodeArea = selector =>
codeArea.querySelector(':scope '.concat(selector));
const submitButton = selectInCodeArea('button[data-cy="submit-code-btn"]');
if (submitButton !== null) {
// see: https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent
document.addEventListener(
"keydown", event => {
if (
event.key === "Enter" && (
event.ctrlKey === true || event.metaKey === true
)
) {
event.preventDefault();
submitButton.click();
}
}
);
const shortcutsButton = selectInCodeArea('button[icon="information"]');
if (shortcutsButton !== null) {
const addShortcutEntry = () => {
// select div[class^="shortcut__"] which is:
// in a Ant modal titled with "Editor Shortcuts"
/* has div[class^="shortcut-description__"] and
div[class^="shortcut-keystrokes__"] as 1st & 2nd child */
// see: https://devhints.io/xpath
const result = new XPathEvaluator().createExpression(
`//div[@class="ant-modal-content"][
./div[@class="ant-modal-header"]
//span[text()="Editor Shortcuts"]
]/div[@class="ant-modal-body"]
//div[starts-with(@class,"shortcut__")][
./div[1][starts-with(@class,"shortcut-description__")] and
./div[2][starts-with(@class,"shortcut-keystrokes__")]
]` // .replace(/\n\s+/g, "")
).evaluate(
document.body, XPathResult.FIRST_ORDERED_NODE_TYPE
);
/* <div class="shortcut__1GGr">
<div class="shortcut-description__23fr">Run code</div>
<div class="shortcut-keystrokes__3HcT">CTRL + '</div>
</div> */
const shortcut = result.singleNodeValue;
if (shortcut !== null) {
const submitShortcut = shortcut.cloneNode(true);
submitShortcut.children[0].textContent = "Submit Code";
submitShortcut.children[1].textContent = "Ctrl + Enter";
shortcut.parentNode.insertBefore(submitShortcut, shortcut);
} else debug("shortcut not found");
};
// use setTimeout(func, 0) to delay the exec of func
// see:
// https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Asynchronous/Timeouts_and_intervals#settimeout
// https://stackoverflow.com/questions/779379
// https://stackoverflow.com/questions/33955650
shortcutsButton.addEventListener(
"click", () => setTimeout(addShortcutEntry, 0), { once: true }
);
} else debug("shortcutsButton not found");
} else debug("submitButton not found, won't add shortcut");
} else debug("codeArea not found, won't add shortcut");
};
const loading = document.querySelector("body > #initial-loading");
if (loading !== null) {
// run addShortcut() when #initial-loading is removed
// see:
// https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver
// https://developer.mozilla.org/en-US/docs/Web/API/MutationObserverInit
new MutationObserver(
(mutationList, observer) => mutationList.forEach(
mutation => {
if ( Array.from(mutation.removedNodes).includes(loading) ) {
addShortcut();
observer.disconnect();
}
/* const nodes = mutation.removedNodes;
if (nodes instanceof NodeList && nodes.length > 0) {
for (const node of nodes) {
if (node.id === "initial-loading") {
addShortcut();
observer.disconnect();
break;
}
}
} */
}
)
).observe(
document.body, { childList: true }
);
} else {
debug("loading not found");
addShortcut();
}