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AriaAnnouncer.vue
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AriaAnnouncer.vue
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<script setup lang="ts">
import type { AriaAnnounceType, AriaLive } from '~/composables/aria'
import type { LocaleObject } from '#i18n'
const router = useRouter()
const { t, locale, locales } = useI18n()
const { ariaAnnouncer, announce } = useAriaAnnouncer()
const localeMap = (locales.value as LocaleObject[]).reduce((acc, l) => {
acc[l.code!] = l.name!
return acc
}, {} as Record<string, string>)
let ariaLive = $ref<AriaLive>('polite')
let ariaMessage = $ref<string>('')
function onMessage(event: AriaAnnounceType, message?: string) {
if (event === 'announce')
ariaMessage = message!
else if (event === 'mute')
ariaLive = 'off'
else
ariaLive = 'polite'
}
watch(locale, (l, ol) => {
if (ol) {
announce(t('a11y.locale_changing', [localeMap[ol] ?? ol]))
setTimeout(() => {
announce(t('a11y.locale_changed', [localeMap[l] ?? l]))
}, 1000)
}
}, { immediate: true })
onMounted(() => {
ariaAnnouncer.on(onMessage)
router.beforeEach(() => {
announce(t('a11y.loading_page'))
})
router.afterEach((to, from) => {
from && setTimeout(() => {
requestAnimationFrame(() => {
const title = document.title.trim().split('|')
announce(t('a11y.route_loaded', [title[0]]))
})
}, 512)
})
})
</script>
<template>
<p sr-only role="status" :aria-live="ariaLive">
{{ ariaMessage }}
</p>
</template>