All files / src/components MultilingualTextarea.vue

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<template>
  <div class="multilingual-textarea">
    <div
      v-if="label && showLanguageSelector"
      class="d-flex justify-content-between align-items-center mb-2"
    >
      <label :for="textareaId" class="form-label mb-0">
        {{ label }}
        <span v-if="required" class="text-danger">*</span>
      </label>
      <div class="language-flags">
        <button
          v-for="lang in enabledLanguages"
          :key="lang"
          type="button"
          :class="['btn btn-sm language-flag', { active: currentLang === lang }]"
          :title="getLanguageName(lang)"
          @click="currentLang = lang"
        >
          {{ getFlag(lang) }}
        </button>
      </div>
    </div>
    <div v-else-if="showLanguageSelector" class="language-flags mb-2">
      <button
        v-for="lang in enabledLanguages"
        :key="lang"
        type="button"
        :class="['btn btn-sm language-flag', { active: currentLang === lang }]"
        :title="getLanguageName(lang)"
        @click="currentLang = lang"
      >
        {{ getFlag(lang) }}
      </button>
    </div>
    <label v-else-if="label" :for="textareaId" class="form-label">
      {{ label }}
      <span v-if="required" class="text-danger">*</span>
    </label>
 
    <textarea
      :id="textareaId"
      v-model="currentValue"
      :class="['form-control', textareaClass]"
      :placeholder="placeholder"
      :required="required && isDefaultLanguage"
      :rows="rows"
      @input="updateValue"
      @blur="$emit('blur')"
    />
 
    <small v-if="showLanguageHint" class="text-muted">
      <span v-if="!currentValue && hasOtherTranslations" class="text-warning">
        (empty, will fallback to {{ getLanguageName(defaultLanguage) }})
      </span>
    </small>
  </div>
</template>
 
<script setup lang="ts">
import { ref, computed, watch } from 'vue'
import { getLanguageInfo } from '@/utils/languages'
 
interface Props {
  modelValue: string | Record<string, string>
  label?: string
  placeholder?: string
  required?: boolean
  textareaClass?: string
  rows?: number
  defaultLanguage?: string
  enabledLanguages?: string[]
  showLanguageHint?: boolean
  currentLanguage?: string
  showLanguageSelector?: boolean
  inputId?: string
}
 
const props = withDefaults(defineProps<Props>(), {
  label: '',
  placeholder: '',
  textareaClass: '',
  required: false,
  rows: 3,
  defaultLanguage: 'en',
  enabledLanguages: () => ['en', 'fr'],
  showLanguageHint: true,
  currentLanguage: undefined,
  showLanguageSelector: true,
  inputId: undefined
})
 
const emit = defineEmits<{
  'update:modelValue': [value: string | Record<string, string>]
  blur: []
}>()
 
const textareaId = computed(
  () => props.inputId ?? `multilingual-textarea-${Math.random().toString(36).substr(2, 9)}`
)
const internalCurrentLang = ref(props.defaultLanguage)
 
const currentLang = computed({
  get() {
    return props.currentLanguage !== undefined ? props.currentLanguage : internalCurrentLang.value
  },
  set(value: string) {
    Eif (props.currentLanguage === undefined) {
      internalCurrentLang.value = value
    }
  }
})
 
const normalizedValue = computed(() => {
  if (typeof props.modelValue === 'string') {
    return { [props.defaultLanguage]: props.modelValue }
  }
  return props.modelValue || {}
})
 
const currentValue = computed({
  get() {
    return normalizedValue.value[currentLang.value] || ''
  },
  set(value: string) {
    const updated = { ...normalizedValue.value, [currentLang.value]: value }
    emit('update:modelValue', updated)
  }
})
 
const isDefaultLanguage = computed(() => currentLang.value === props.defaultLanguage)
 
const hasOtherTranslations = computed(() => {
  return Object.keys(normalizedValue.value).some(
    (lang) => lang !== currentLang.value && normalizedValue.value[lang]
  )
})
 
function updateValue(event: Event) {
  const target = event.target as HTMLTextAreaElement
  currentValue.value = target.value
}
 
function getFlag(lang: string): string {
  const info = getLanguageInfo(lang)
  return info?.flag || lang.toUpperCase()
}
 
function getLanguageName(lang: string): string {
  const info = getLanguageInfo(lang)
  return info?.nativeName || lang
}
 
// Auto-switch to default language if current language becomes disabled
watch(
  () => props.enabledLanguages,
  (newLangs) => {
    Iif (props.currentLanguage === undefined && !newLangs.includes(internalCurrentLang.value)) {
      internalCurrentLang.value = props.defaultLanguage
    }
  },
  { immediate: true }
)
</script>
 
<style scoped>
.multilingual-textarea {
  width: 100%;
}
 
.language-flags {
  display: flex;
  gap: 0.25rem;
}
 
.language-flag {
  padding: 0.125rem 0.375rem;
  border: 1px solid #ddd;
  background: white;
  border-radius: 3px;
  font-size: 0.875rem;
  line-height: 1;
  cursor: pointer;
  transition: all 0.2s;
  opacity: 0.6;
}
 
.language-flag:hover {
  opacity: 0.8;
  border-color: #0d6efd;
}
 
.language-flag.active {
  opacity: 1;
  border-color: #0d6efd;
  background: #e7f1ff;
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}
</style>