feat(i18n): replace language cycle buttons with flag dropdown selector using inline SVGs

2026-06-07 12:59:40 +02:00
parent 944f4518e9
commit 4dfe2cea4e
8 changed files with 364 additions and 50 deletions
@@ -0,0 +1,191 @@
+import { useEffect, useRef, useState } from 'react'
+import { useTranslation } from 'react-i18next'
+import { Languages, Globe, ChevronDown } from 'lucide-react'
+import {
+  SUPPORTED_LANGUAGES,
+  changeAppLanguage,
+  normalizeAppLanguage,
+  type AppLanguage
+} from '../utils/i18nLanguages.js'
+
+function FlagIcon({ lang, className, style }: { lang: string; className?: string; style?: React.CSSProperties }) {
+  const baseStyle = {
+    display: 'inline-block',
+    verticalAlign: 'middle',
+    borderRadius: '2px',
+    overflow: 'hidden',
+    border: '1px solid rgba(255, 255, 255, 0.15)',
+    boxSizing: 'border-box' as const,
+    ...style
+  }
+
+  switch (lang) {
+    case 'de':
+      return (
+        <svg viewBox="0 0 5 3" className={className} style={baseStyle}>
+          <rect width="5" height="3" fill="#FFCE00"/>
+          <rect width="5" height="2" fill="#DD0000"/>
+          <rect width="5" height="1" fill="#000000"/>
+        </svg>
+      )
+    case 'en':
+      return (
+        <svg viewBox="0 0 60 30" className={className} style={baseStyle}>
+          <clipPath id="union-jack-clip">
+            <path d="M0,0 L60,30 M60,0 L0,30"/>
+          </clipPath>
+          <rect width="60" height="30" fill="#012169"/>
+          <path d="M0,0 L60,30 M60,0 L0,30" stroke="#fff" strokeWidth="6"/>
+          <path d="M0,0 L60,30 M60,0 L0,30" stroke="#C8102E" strokeWidth="4" clipPath="url(#union-jack-clip)"/>
+          <path d="M30,0 v30 M0,15 h60" stroke="#fff" strokeWidth="10"/>
+          <path d="M30,0 v30 M0,15 h60" stroke="#C8102E" strokeWidth="6"/>
+        </svg>
+      )
+    case 'da':
+      return (
+        <svg viewBox="0 0 37 28" className={className} style={baseStyle}>
+          <rect width="37" height="28" fill="#C8102E"/>
+          <path d="M12,0 h4 v28 h-4 z M0,12 h37 v4 h-37 z" fill="#FFFFFF"/>
+        </svg>
+      )
+    case 'sv':
+      return (
+        <svg viewBox="0 0 16 10" className={className} style={baseStyle}>
+          <rect width="16" height="10" fill="#006AA7"/>
+          <path d="M5,0 h2 v10 h-2 z M0,4 h16 v2 h-16 z" fill="#FECC00"/>
+        </svg>
+      )
+    case 'nb':
+      return (
+        <svg viewBox="0 0 22 16" className={className} style={baseStyle}>
+          <rect width="22" height="16" fill="#BA0C2F"/>
+          <path d="M6,0 h4 v16 h-4 z M0,6 h22 v4 h-22 z" fill="#FFFFFF"/>
+          <path d="M7,0 h2 v16 h-2 z M0,7 h22 v2 h-22 z" fill="#00205B"/>
+        </svg>
+      )
+    default:
+      return null
+  }
+}
+
+interface LanguageDropdownProps {
+  variant?: 'icon' | 'text' | 'secondary-button'
+  align?: 'left' | 'right'
+}
+
+export default function LanguageDropdown({
+  variant = 'icon',
+  align = 'right'
+}: LanguageDropdownProps) {
+  const { t, i18n } = useTranslation()
+  const [isOpen, setIsOpen] = useState(false)
+  const rootRef = useRef<HTMLDivElement>(null)
+
+  const activeLang = normalizeAppLanguage(i18n.language)
+
+  useEffect(() => {
+    if (!isOpen) return
+
+    const closeOnOutsideClick = (event: MouseEvent) => {
+      if (rootRef.current && !rootRef.current.contains(event.target as Node)) {
+        setIsOpen(false)
+      }
+    }
+
+    const closeOnEscape = (event: KeyboardEvent) => {
+      if (event.key === 'Escape') setIsOpen(false)
+    }
+
+    document.addEventListener('mousedown', closeOnOutsideClick)
+    document.addEventListener('keydown', closeOnEscape)
+    return () => {
+      document.removeEventListener('mousedown', closeOnOutsideClick)
+      document.removeEventListener('keydown', closeOnEscape)
+    }
+  }, [isOpen])
+
+  const selectLanguage = (lang: AppLanguage) => {
+    changeAppLanguage(i18n, lang)
+    setIsOpen(false)
+  }
+
+  // Trigger button content based on variant
+  const renderTriggerContent = () => {
+    const name = t(`languages.${activeLang}`)
+
+    if (variant === 'icon') {
+      return (
+        <span className="lang-dropdown-trigger-flag" aria-hidden="true">
+          <FlagIcon lang={activeLang} className="lang-flag-svg trigger-icon-only" />
+        </span>
+      )
+    }
+
+    if (variant === 'secondary-button') {
+      return (
+        <>
+          <Globe size={14} style={{ marginRight: '4px' }} />
+          <FlagIcon lang={activeLang} className="lang-flag-svg" style={{ marginRight: '4px' }} />
+          <span className="lang-trigger-name">{name}</span>
+          <ChevronDown size={12} className="lang-dropdown-chevron" />
+        </>
+      )
+    }
+
+    // Default or "text" variant (used in footer)
+    return (
+      <>
+        <Languages size={18} />
+        <FlagIcon lang={activeLang} className="lang-flag-svg" style={{ margin: '0 4px' }} />
+        <span>{name}</span>
+        <ChevronDown size={14} className="lang-dropdown-chevron" />
+      </>
+    )
+  }
+
+  const triggerClass =
+    variant === 'icon'
+      ? 'btn-icon'
+      : variant === 'secondary-button'
+      ? 'btn secondary compact'
+      : 'btn-icon-text'
+
+  return (
+    <div
+      className={`lang-dropdown ${isOpen ? 'is-open' : ''} align-${align}`}
+      ref={rootRef}
+    >
+      <button
+        type="button"
+        className={triggerClass}
+        onClick={() => setIsOpen((prev) => !prev)}
+        aria-haspopup="listbox"
+        aria-expanded={isOpen}
+        title="Switch Language"
+        style={variant === 'secondary-button' ? { width: 'auto', padding: '6px 12px', fontSize: '13px' } : undefined}
+      >
+        {renderTriggerContent()}
+      </button>
+
+      {isOpen && (
+        <ul className="lang-dropdown-menu" role="listbox">
+          {SUPPORTED_LANGUAGES.map((lang) => {
+            const isSelected = lang === activeLang
+            return (
+              <li
+                key={lang}
+                role="option"
+                aria-selected={isSelected}
+                className={`lang-dropdown-option ${isSelected ? 'is-selected' : ''}`}
+                onClick={() => selectLanguage(lang)}
+              >
+                <FlagIcon lang={lang} className="lang-flag-svg" />
+                <span className="lang-option-name">{t(`languages.${lang}`)}</span>
+              </li>
+            )
+          })}
+        </ul>
+      )}
+    </div>
+  )
+}