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homepage/src/lib/components/RecipeLanguageSwitcher.svelte
Alexander Bocken 5c8605c690
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feat: complete Svelte 5 migration across entire application
Migrated all components and routes from Svelte 4 to Svelte 5 syntax:

- Converted export let → $props() with generic type syntax
- Replaced createEventDispatcher → callback props
- Migrated $: reactive statements → $derived() and $effect()
- Updated two-way bindings with $bindable()
- Fixed TypeScript syntax: added lang="ts" to script tags
- Converted inline type annotations to generic parameter syntax

- Updated deprecated event directives to Svelte 5 syntax:
  - on:click → onclick
  - on:submit → onsubmit
  - on:change → onchange

- Converted deprecated <slot> elements → {@render children()}
- Updated slot props to Snippet types
- Fixed season/icon selector components with {#snippet} blocks

- Fixed non-reactive state by converting let → $state()
- Fixed infinite loop in EnhancedBalance by converting $effect → $derived
- Fixed Chart.js integration by converting $state proxies to plain arrays
- Updated cospend dashboard and payment pages with proper reactivity

- Migrated 20+ route files from export let data → $props()
- Fixed TypeScript type annotations in page components
- Updated reactive statements in error and cospend routes

- Removed invalid onchange attribute from Toggle component
- Fixed modal ID isolation in CreateIngredientList/CreateStepList
- Fixed dark mode button visibility in TranslationApproval
- Build now succeeds with zero deprecation warnings

All functionality tested and working. No breaking changes to user experience.
2026-01-10 16:20:50 +01:00

143 lines
2.5 KiB
Svelte

<script lang="ts">
let {
germanUrl,
englishUrl,
currentLang = 'de',
hasTranslation = true
}: {
germanUrl: string,
englishUrl: string,
currentLang?: 'de' | 'en',
hasTranslation?: boolean
} = $props();
function setLanguagePreference(lang: 'de' | 'en') {
if (typeof localStorage !== 'undefined') {
localStorage.setItem('preferredLanguage', lang);
}
}
</script>
<style>
.language-switcher {
position: fixed;
top: 1rem;
right: 1rem;
z-index: 1000;
display: flex;
gap: 0.5rem;
background: var(--nord0);
padding: 0.5rem;
border-radius: 8px;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
@media(prefers-color-scheme: light) {
.language-switcher {
background: var(--nord6);
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
}
.language-switcher a {
padding: 0.5rem 1rem;
border-radius: 4px;
text-decoration: none;
color: var(--nord4);
font-weight: 600;
font-size: 0.9rem;
transition: all 0.2s;
display: flex;
align-items: center;
gap: 0.5rem;
}
@media(prefers-color-scheme: light) {
.language-switcher a {
color: var(--nord2);
}
}
.language-switcher a:hover {
background: var(--nord3);
color: var(--nord6);
}
@media(prefers-color-scheme: light) {
.language-switcher a:hover {
background: var(--nord4);
color: var(--nord0);
}
}
.language-switcher a.active {
background: var(--nord14);
color: var(--nord0);
}
.language-switcher a.active:hover {
background: var(--nord15);
}
.language-switcher a.disabled {
opacity: 0.5;
cursor: not-allowed;
pointer-events: none;
}
.flag {
font-size: 1.2rem;
line-height: 1;
}
@media (max-width: 600px) {
.language-switcher {
top: 0.5rem;
right: 0.5rem;
padding: 0.25rem;
gap: 0.25rem;
}
.language-switcher a {
padding: 0.4rem 0.7rem;
font-size: 0.85rem;
}
.flag {
font-size: 1rem;
}
}
</style>
<div class="language-switcher">
<a
href={germanUrl}
class:active={currentLang === 'de'}
aria-label="Switch to German"
onclick={() => setLanguagePreference('de')}
>
<span class="flag">🇩🇪</span>
<span class="label">DE</span>
</a>
{#if hasTranslation}
<a
href={englishUrl}
class:active={currentLang === 'en'}
aria-label="Switch to English"
onclick={() => setLanguagePreference('en')}
>
<span class="flag">🇬🇧</span>
<span class="label">EN</span>
</a>
{:else}
<span
class="disabled"
title="English translation not available"
aria-label="English translation not available"
>
<span class="flag">🇬🇧</span>
<span class="label">EN</span>
</span>
{/if}
</div>