|
| 1 | +(function () { |
| 2 | + const STORAGE_KEY = 'preferred_lang'; // 'is' or 'en' |
| 3 | + const root = document.documentElement; |
| 4 | + |
| 5 | + function setLang(lang) { |
| 6 | + root.classList.remove('lang-is', 'lang-en'); |
| 7 | + root.classList.add(`lang-${lang}`); |
| 8 | + try { localStorage.setItem(STORAGE_KEY, lang); } catch (e) {} |
| 9 | + |
| 10 | + document.querySelectorAll('[data-lang-btn]') |
| 11 | + .forEach(btn => |
| 12 | + btn.classList.toggle('active', btn.getAttribute('data-lang-btn') === lang) |
| 13 | + ); |
| 14 | + } |
| 15 | + |
| 16 | + function detectInitial() { |
| 17 | + try { |
| 18 | + const saved = localStorage.getItem(STORAGE_KEY); |
| 19 | + if (saved === 'is' || saved === 'en') return saved; |
| 20 | + } catch (e) {} |
| 21 | + |
| 22 | + const navlang = (navigator.language || 'is').toLowerCase(); |
| 23 | + if (navlang.startsWith('is')) return 'is'; |
| 24 | + return 'en'; |
| 25 | + } |
| 26 | + |
| 27 | + function injectToggle() { |
| 28 | + const header = document.querySelector('.md-header__inner'); |
| 29 | + if (!header || header.querySelector('.lang-toggle')) return; |
| 30 | + |
| 31 | + const wrap = document.createElement('div'); |
| 32 | + wrap.className = 'lang-toggle'; |
| 33 | + wrap.innerHTML = ` |
| 34 | + <span>Tungumál / Language:</span> |
| 35 | + <button type="button" data-lang-btn="is">IS</button> |
| 36 | + <button type="button" data-lang-btn="en">EN</button> |
| 37 | + `; |
| 38 | + header.appendChild(wrap); |
| 39 | + |
| 40 | + header.querySelectorAll('[data-lang-btn]').forEach(btn => { |
| 41 | + btn.addEventListener('click', () => |
| 42 | + setLang(btn.getAttribute('data-lang-btn')) |
| 43 | + ); |
| 44 | + }); |
| 45 | + } |
| 46 | + |
| 47 | + document.addEventListener('DOMContentLoaded', () => { |
| 48 | + injectToggle(); |
| 49 | + setLang(detectInitial() || 'is'); |
| 50 | + }); |
| 51 | +})(); |
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