bootstrap-vue/src/components/nav/nav.js

BootstrapVue, with over 40 plugins and more than 80 custom components, custom directives, and over 300 icons, provides one of the most comprehensive implementations of Bootstrap v4 components and grid system for Vue.js. With extensive and automated WAI-AR

import Vue from '../../utils/vue'
import { mergeData } from 'vue-functional-data-merge'

// -- Constants --

export const props = {
  tag: {
    type: String,
    default: 'ul'
  },
  fill: {
    type: Boolean,
    default: false
  },
  justified: {
    type: Boolean,
    default: false
  },
  align: {
    type: String,
    default: null
  },
  tabs: {
    type: Boolean,
    default: false
  },
  pills: {
    type: Boolean,
    default: false
  },
  vertical: {
    type: Boolean,
    default: false
  },
  small: {
    type: Boolean,
    default: false
  },
  cardHeader: {
    // Set to true if placing in a card header
    type: Boolean,
    default: false
  }
}

// -- Utils --

const computeJustifyContent = value => {
  // Normalize value
  value = value === 'left' ? 'start' : value === 'right' ? 'end' : value
  return `justify-content-${value}`
}

// @vue/component
export const BNav = /*#__PURE__*/ Vue.extend({
  name: 'BNav',
  functional: true,
  props,
  render(h, { props, data, children }) {
    return h(
      props.tag,
      mergeData(data, {
        staticClass: 'nav',
        class: {
          'nav-tabs': props.tabs,
          'nav-pills': props.pills && !props.tabs,
          'card-header-tabs': !props.vertical && props.cardHeader && props.tabs,
          'card-header-pills': !props.vertical && props.cardHeader && props.pills && !props.tabs,
          'flex-column': props.vertical,
          'nav-fill': !props.vertical && props.fill,
          'nav-justified': !props.vertical && props.justified,
          [computeJustifyContent(props.align)]: !props.vertical && props.align,
          small: props.small
        }
      }),
      children
    )
  }
})