bootstrap-vue/src/components/navbar/navbar.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 { getComponentConfig, getBreakpoints } from '../../utils/config'
import { isString } from '../../utils/inspect'
import normalizeSlotMixin from '../../mixins/normalize-slot'

const NAME = 'BNavbar'

export const props = {
  tag: {
    type: String,
    default: 'nav'
  },
  type: {
    type: String,
    default: 'light'
  },
  variant: {
    type: String,
    default: () => getComponentConfig(NAME, 'variant')
  },
  toggleable: {
    type: [Boolean, String],
    default: false
  },
  fixed: {
    type: String
  },
  sticky: {
    type: Boolean,
    default: false
  },
  print: {
    type: Boolean,
    default: false
  }
}

// @vue/component
export const BNavbar = /*#__PURE__*/ Vue.extend({
  name: NAME,
  mixins: [normalizeSlotMixin],
  props,
  provide() {
    return { bvNavbar: this }
  },
  computed: {
    breakpointClass() {
      let breakpoint = null
      const xs = getBreakpoints()[0]
      const toggleable = this.toggleable
      if (toggleable && isString(toggleable) && toggleable !== xs) {
        breakpoint = `navbar-expand-${toggleable}`
      } else if (toggleable === false) {
        breakpoint = 'navbar-expand'
      }

      return breakpoint
    }
  },
  render(h) {
    return h(
      this.tag,
      {
        staticClass: 'navbar',
        class: [
          {
            'd-print': this.print,
            'sticky-top': this.sticky,
            [`navbar-${this.type}`]: this.type,
            [`bg-${this.variant}`]: this.variant,
            [`fixed-${this.fixed}`]: this.fixed
          },
          this.breakpointClass
        ],
        attrs: {
          role: this.tag === 'nav' ? null : 'navigation'
        }
      },
      [this.normalizeSlot('default')]
    )
  }
})