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qb20nh/keyboardsubmit.user.js

Created November 7, 2023 10:08
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  1. qb20nh created this gist Nov 7, 2023.
    81 changes: 81 additions & 0 deletions keyboardsubmit.user.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,81 @@
    // ==UserScript==
    // @name Ctrl+Enter executes for programmers.co.kr
    // @namespace http://tampermonkey.net/
    // @version 0.1
    // @description try to take over the world!
    // @author You
    // @match https://school.programmers.co.kr/learn/courses/*/lessons/*
    // @icon https://www.google.com/s2/favicons?sz=64&domain=programmers.co.kr
    // @grant none
    // ==/UserScript==

    (async function() {
    'use strict';

    function forElement(selector, rootNode = document) {
    return new Promise((resolve, reject) => {
    const element = rootNode.querySelector(selector);

    if (element) {
    resolve(element);
    return;
    }

    const observer = new MutationObserver(mutations => {
    const element = rootNode.querySelector(selector);
    if (element) {
    observer.disconnect();
    resolve(element);
    }
    });

    observer.observe(rootNode, {
    childList: true,
    subtree: true
    });
    });
    }

    function forProperty(obj, propName, timeout = 3000, interval = 100) {
    return new Promise((resolve, reject) => {
    const startTime = Date.now();

    // Function to check the property
    function checkProperty() {
    // If the property exists, resolve the promise with its value
    if (propName in obj) {
    resolve(obj[propName]);
    } else {
    // If the timeout has not elapsed, check again after the interval
    if (Date.now() - startTime < timeout) {
    setTimeout(checkProperty, interval);
    } else {
    // If the timeout has elapsed, reject the promise
    reject(new Error(`Property ${propName} was not found within ${timeout}ms`));
    }
    }
    }

    // Start the polling
    checkProperty();
    });
    }


    const cm = await forProperty(await forElement('.CodeMirror'), 'CodeMirror');
    const codeMirrorTextarea = document.querySelector('.CodeMirror textarea');
    const runCodeBtn = document.getElementById('run-code');

    // Your code here...
    document.addEventListener('keydown', ({ctrlKey, key}) => {
    if (ctrlKey && key === 'Enter') {
    const focusElement = document.querySelector(':focus');
    if (focusElement === codeMirrorTextarea) {
    runCodeBtn.click();
    cm.execCommand('undo');
    }
    }
    }, {
    passive: true
    });
    })();