LeetCode - Bring back Submit Code shortcut (Ctrl/Cmd + Enter)

See: https://leetcode.com/discuss/general-discussion/136588/Is-there-any-keyboard-shortcut-to-run-code-and-submit-solution/346347

Verze ze dne 30. 03. 2021. Zobrazit nejnovější verzi.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

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.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==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();
}