mapcomplete/src/UI/InputElement/LanguagePicker.svelte

75 lines
2.6 KiB
Svelte

<script lang="ts">
// Languages in the language itself
import native from "../../assets/language_native.json"
// Translated languages
import language_translations from "../../assets/language_translations.json"
import { Store, UIEventSource } from "../../Logic/UIEventSource"
import Locale from "../i18n/Locale"
import { LanguageIcon } from "@babeard/svelte-heroicons/solid"
import Dropdown from "../Base/Dropdown.svelte"
import { twMerge } from "tailwind-merge"
import Translations from "../i18n/Translations"
import { ariaLabel } from "../../Utils/ariaLabel"
/**
* Languages one can choose from
* Defaults to _all_ languages known by MapComplete
*/
export let availableLanguages: string[] = Object.keys(native)
/**
* EventStore to assign to, defaults to 'Locale.langauge'
*/
export let assignTo: UIEventSource<string> = Locale.language
export let preferredLanguages: Store<string[]> = undefined
let preferredFiltered: string[] = undefined
preferredLanguages?.addCallbackAndRunD((preferredLanguages) => {
let lng = navigator.language
if (lng === "en-US") {
lng = "en"
}
if (preferredLanguages?.indexOf(lng) < 0) {
preferredLanguages?.push(lng)
}
preferredFiltered = preferredLanguages?.filter((l) => availableLanguages.indexOf(l) >= 0)
})
export let clss: string = undefined
let current = Locale.language
</script>
{#if availableLanguages?.length > 1}
<form class={twMerge("flex max-w-full items-center pr-4", clss)}>
<label
class="neutral-label flex max-w-full"
use:ariaLabel={Translations.t.general.pickLanguage}
>
<LanguageIcon class="mr-1 h-4 w-4 shrink-0" aria-hidden="true" />
<Dropdown cls="max-w-full" value={assignTo}>
{#if preferredFiltered}
{#each preferredFiltered as language}
<option value={language} class="font-bold">
{native[language] ?? ""}
{#if language !== $current}
({language_translations[language]?.[$current] ?? language})
{/if}
</option>
{/each}
<option disabled />
{/if}
{#each availableLanguages.filter((l) => l !== "_context") as language}
<option value={language} class="font-bold">
{native[language] ?? ""}
{#if language !== $current}
{#if language_translations[language]?.[$current] !== undefined}
({language_translations[language]?.[$current] + " - " + language ?? language})
{:else}
({language})
{/if}
{/if}
</option>
{/each}
</Dropdown>
</label>
</form>
{/if}