app_vue2/composables/form/useNavigationHelpers.ts

import { onMounted, ref, Ref } from '@nuxtjs/composition-api'
import * as _ from 'lodash'

/**
 * @category composables/form
 * Composable pour gérer les expansions des accordions
 */
export function useNavigationHelpers(route: Ref){
  const panel: Ref<number> = ref(0)
  const activeAccordionId = route.value.query.accordion

  onMounted(() => {
    setTimeout(function () {
      _.each(document.getElementsByClassName('v-expansion-panel'), (element, index) => {
        if (element.id == activeAccordionId) {
          panel.value = index
        }
      })
      if (!panel.value) { panel.value = 0 }
    }, 0)
  })

  return {
    panel
  }
}