Toggle Menu for JS

Toggle menu (三つだけ) - ボタンで ", ', ` をコピー
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// ==UserScript==
// @name         Toggle Menu for JS
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Toggle menu (三つだけ) - ボタンで ", ', ` をコピー
// @author       umaimann
// @match        *://*/*
// @grant        none
// @license      MIT
// ==/UserScript==

(function() {
    // 既存のGUIがあれば削除
    const existing = document.getElementById('copy-quote-gui');
    if (existing) existing.remove();

    // GUI作成
    const gui = document.createElement('div');
    gui.id = 'copy-quote-gui';
    Object.assign(gui.style, {
        position: 'fixed',
        top: '20px',
        right: '20px',
        padding: '10px',
        background: '#f0f0f0',
        border: '1px solid #ccc',
        borderRadius: '8px',
        boxShadow: '0 2px 6px rgba(0,0,0,0.2)',
        zIndex: 9999,
        fontFamily: 'sans-serif',
        display: 'flex',
        flexDirection: 'column',
        gap: '8px',
        alignItems: 'center'
    });

    // コピー用文字
    const chars = ['"', "'", '`'];
    const charContainer = document.createElement('div');
    charContainer.style.display = 'flex';
    charContainer.style.gap = '5px';

    chars.forEach(c => {
        const btn = document.createElement('button');
        btn.textContent = c;
        Object.assign(btn.style, {
            padding: '5px 10px',
            cursor: 'pointer'
        });
        btn.onclick = () => {
            navigator.clipboard.writeText(c).then(() => {
                const original = btn.textContent;
                btn.textContent = 'コピー完了 ✔';
                setTimeout(() => btn.textContent = original, 1000);
            });
        };
        charContainer.appendChild(btn);
    });

    gui.appendChild(charContainer);
    document.body.appendChild(gui);
})();