Readable Textarea Expander

Expands small textareas to improve readability and editing comfort on common websites.

Ce script ne devrait pas être installé directement. C'est une librairie créée pour d'autres scripts. Elle doit être inclus avec la commande // @require https://update.greasyfork.org/scripts/570704/1780717/Readable%20Textarea%20Expander.js

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Enveloppe les lignes

// ==UserScript==
// @name         Readable Textarea Expander
// @namespace    https://example.com/userscripts
// @version      1.0.0
// @description  Expands small textareas to improve readability and editing comfort on common websites.
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    // Minimum height for textareas that are too small
    const MIN_HEIGHT = 220;

    // Apply better sizing to a textarea
    function improveTextarea(textarea) {
        if (!(textarea instanceof HTMLTextAreaElement)) {
            return;
        }

        // Avoid processing the same textarea multiple times
        if (textarea.dataset.expanderApplied === 'true') {
            return;
        }
        textarea.dataset.expanderApplied = 'true';

        const computedStyle = window.getComputedStyle(textarea);
        const currentHeight = parseFloat(computedStyle.height) || textarea.offsetHeight;

        if (currentHeight < MIN_HEIGHT) {
            textarea.style.minHeight = `${MIN_HEIGHT}px`;
        }

        textarea.style.resize = 'vertical';
        textarea.style.lineHeight = '1.5';
        textarea.style.padding = '10px';
        textarea.style.boxSizing = 'border-box';
    }

    // Process all existing textareas
    function processPage() {
        const textareas = document.querySelectorAll('textarea');
        textareas.forEach(improveTextarea);
    }

    // Watch for dynamically added textareas
    const observer = new MutationObserver(() => {
        processPage();
    });

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

    // Run once on load
    processPage();
})();