TopMenu.vue

<template>
<div>
  <b-navbar toggleable="lg" type="dark" variant="info">
    <b-navbar-brand href="#" class="d-none d-md-block" v-on:click="showMainPage">Group Membership Service</b-navbar-brand>

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

    <b-collapse id="nav-collapse" is-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" v-model="input.genericSearch.filter" @keydown.native.enter="genericSearch"></b-form-input>
          <b-button size="sm" class="my-2 my-sm-0" type="button" v-on:click="genericSearch()">Search</b-button>
        </b-nav-form>
        <b-nav-item-dropdown :text="user" right v-if="user">
          <b-dropdown-item href="logout">Logout</b-dropdown-item>
        </b-nav-item-dropdown>
      </b-navbar-nav>
    </b-collapse>
  </b-navbar>
</div>
</template>

<script>
import client from 'api-client';
import {
  mapState
} from 'vuex';

export default {
  name: 'TopMenu',
  props: {
    user: String
  },
  computed: mapState({
    input: state => state.input,
  }),
  methods: {
    showMainPage() {
      this.$store.commit('showMainPage');
    },
    genericSearch(event) {
      // prevent the page reload if enter is pressed
      if (event) {
        event.preventDefault();
      }

      this.input.genericSearch.page = 1;
      this.input.genericSearch.pageSize = 20;
      client.search(this.input)
        .then(results => {
          this.$store.commit('displaySearchResults', results);
        });
    }
  }
}
</script>

<style>
.navbar-dark .nav-link {
  color: rgba(255, 255, 255, .7);
  font-weight: bold;
}
</style>