J'utilise nuxt et bootstrap pour créer un menu déroulant de survol personnalisé pour la navigation. Le problème que j'ai est que mon sous-menu de navigation NuxtLinks actualise la page entière au lieu de modifier en douceur le contenu de l'application dans le bloc Nuxt. La barre de navigation est générée dynamiquement dans la mise en page default.vue et utilise le composant b-dropdown-hover avec un NuxtLink encapsulant le contenu. Pourquoi la page est-elle complètement actualisée pour ces liens/ancres, mais mon image de marque b-navbar évolue-t-elle en douceur ? Désolé, je suis nouveau sur Nuxt. Cette vidéo à ~ 1:35:00 montre ce que j'essaie de faire.

components/BDropdownHoverRight.vue

<template>
  <nuxt-link :to="aTo">
    <div class="ddr-top" @mouseover="onOver1($event.target)" @mouseleave="onLeave1($event.target)">
      <b-dropdown ref="dropdown_ddr" :text="cText" class="m-md-2 ddr">
        <slot></slot>
      </b-dropdown>
    </div>
  </nuxt-link>
</template>

<script>
export default {
  name: 'BDropdownHoverRight',
  props: {
    cText: {
      type: String,
    },
    aTo: {
      type: String,
    },
  },
  methods: {
    onOver1(t) {
      if (t.nodeName === 'DIV') {
        console.log(t)
        console.log(t.nodeName)
        let num_child_nodes = 0
        try {
          if (t.querySelectorAll(':scope > ul')[0].getElementsByTagName('div').length >= 0) {
            num_child_nodes = t.querySelectorAll(':scope > ul')[0].getElementsByTagName('div').length
          }
        } catch (e) {
          if (t.querySelectorAll(':scope > div > ul')[0].getElementsByTagName('div').length >= 0) {
            num_child_nodes = t.querySelectorAll(':scope > div > ul')[0].getElementsByTagName('div').length
          }
        }

        if (num_child_nodes > 0) {
          try {
            t.querySelectorAll(':scope > div > ul')[0].style.display = 'block'
          } catch (e) {
            try {
              t.querySelectorAll(':scope > ul')[0].style.display = 'block'
            } catch (e) {}
          }
        }
      }
    },
    onLeave1(t) {
      try {
        t.querySelectorAll(':scope > div > ul')[0].style.display = 'none'
      } catch (e) {
        try {
          t.querySelectorAll(':scope > ul')[0].style.display = 'none'
        } catch (e) {}
      }
    },
  },
}
</script>

layouts/default.vue

<template>
  <div>
    <b-navbar id="top-nav-bar" toggleable="lg" type="light" sticky>
      <b-navbar-brand to="/">
        <Rabbit id="tl-logo" />
      </b-navbar-brand>

      <b-navbar-toggle target="nav-collapse"></b-navbar-toggle>

      <b-collapse id="nav-collapse" is-nav>
        <b-navbar-nav>
          <template v-for="dir in navtop_dd">
            <b-dropdown-hover
              :key="dir.id"
              :c-text="dir.name"
              :a-to="dir.hasOwnProperty('ato') ? dir.ato : '/nolink'"
            >
              <template v-if="'submenus' in dir && dir.submenus.length > 0">
                <template v-for="dir1 in dir.submenus">
                  <b-dropdown-hover-right
                    :key="dir1.id"
                    :c-text="dir1.name"
                    :a-to="dir1.hasOwnProperty('ato') ? dir1.ato : '/nolink'"
                  >
                    <template v-if="'submenus' in dir1 && dir1.submenus.length > 0">
                      <template v-for="dir2 in dir1.submenus">
                        <b-dropdown-hover-right
                          :key="dir2.id"
                          :c-text="dir2.name"
                          :a-to="dir2.hasOwnProperty('ato') ? dir2.ato : '/nolink'"
                        >
                        </b-dropdown-hover-right>
                      </template>
                    </template>
                  </b-dropdown-hover-right>
                </template>
              </template>
            </b-dropdown-hover>
          </template>
        </b-navbar-nav>

        <!-- Right aligned nav items -->
        <b-navbar-nav class="ml-auto">
          <b-nav-form>
            <b-form-input size="sm" class="mr-sm-2" placeholder="Search"></b-form-input>
            <b-button size="sm" class="my-2 my-sm-0" type="submit">Search</b-button>
          </b-nav-form>

          <b-nav-item-dropdown right>
            <!-- Using 'button-content' slot -->
            <template #button-content>
              <b-img src="../assets/imgs/account-circle.svg" style="height: 35px"> </b-img>
              <!-- <em>User</em> -->
            </template>
            <b-dropdown-item href="#">Profile</b-dropdown-item>
            <b-dropdown-item href="#">Sign Out</b-dropdown-item>
          </b-nav-item-dropdown>
        </b-navbar-nav>
      </b-collapse>
    </b-navbar>
    <b-container id="app-content">
      <Nuxt />
    </b-container>
    <div id="footer">
      <div style="height: 100%; padding: 5px">© 2021</div>
    </div>
  </div>
</template>

<script>
import BDropdownHover from '@/components/BDropdownHover'
import BDropdownHoverRight from '@/components/BDropdownHoverRight'

export default {
  components: {
    BDropdownHover,
    BDropdownHoverRight,
  },
  data() {
    return {
      navtop_dd: [
        {
          id: 1,
          name: 'Transactions',
          ato: '/transactions',
          submenus: [
            {
              id: '1a',
              name: 'Sales Orders',
              ato: '/transactions/salesorders',
              submenus: [
                {
                  id: '1b',
                  name: 'New',
                },
                {
                  id: '2b',
                  name: 'List',
                },
              ],
            },
            {
              id: '2a',
              name: 'Item Fulfillments',
              ato: '/transactions/itemfulfillments',
              submenus: [
                {
                  id: '1b',
                  name: 'New',
                },
                {
                  id: '2b',
                  name: 'List',
                },
              ],
            },
          ],
        },
        {
          id: 2,
          name: 'Inventory',
        },
        {
          id: 3,
          name: 'Reports',
        },
        {
          id: 4,
          name: 'Setup',
        },
        {
          id: 5,
          name: 'Support',
        },
      ],
    }
  },
  mounted() {
    var x = document.querySelectorAll('.b-dropdown.navtop-dd')
    for (var i = 0; i < x.length; i++) {
      if (x[i].querySelectorAll(':scope > ul')[0].getElementsByTagName('div').length == 0) {
        var btn = x[i].querySelectorAll(':scope > .btn')[0]
        btn.classList += ' no-content-after'
      }
    }
    var x = document.querySelectorAll('.b-dropdown.ddr')
    for (var i = 0; i < x.length; i++) {
      if (x[i].querySelectorAll(':scope > ul')[0].getElementsByTagName('div').length == 0) {
        var btn = x[i].querySelectorAll(':scope > .btn')[0]
        btn.classList += ' no-content-after'
      }
    }
  },
}
</script>

<style>
#top-nav-bar {
  border-bottom: 1px solid green;
}

#tl-logo {
  height: 40px;
  margin: 5px;
}

#footer {
  height: 40px;
  color: black;
  border-top: 1px solid green;
  margin: auto;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: space-around;
}

.navtop-dd button {
  background: none !important;
  color: #6c757d !important;
  border: none !important;
}

#app-content {
  margin: 20px auto;
}

.ddr > button::after {
  display: inline-block;
  margin-left: 0.555em;
  right: 0px;
  content: "";
  border-top: 0.25em solid transparent;
  border-right: 0.3em solid transparent;
  border-bottom: 0.25em solid transparent;
  border-left: 0.35em solid;
  vertical-align: 0.075em;
}

.b-dropdown {
  width: 100%;
}

.ddr > button {
  text-align: left;
}

.no-content-after::after {
  content: none !important;
}

.ddr > ul {
  top: -1.2rem;
  left: calc(100% - 0.5rem);
}

.dropdown-menu {
  min-width: 0 !important;
}

.dropdown-item {
  color: #6C757D;
}

.ddr-top:hover {
  background-color: #e4ffda;
}

a:hover {
  text-decoration: none !important;
}
</style>