vue-bus-manager/index.js

vue bus event manager

export default function bus(Vue) {
  const version = Number(Vue.version.split('.')[0])
  if (version < 2) return 

  var bus = new Vue()

  Object.defineProperty(Vue.prototype, '$bus', {
    get () {
      return bus
    }
  })

  Vue.mixin({
    created () {
      this.$busListeners = {}
      let $bus = this.$options.listener
      for (let name in $bus) {
        this.$busListeners[name] = $bus[name].bind(this)
        bus.$on(name, this.$busListeners[name])
      }
    },
    beforeDestroy () {
      for (let name in this.$busListeners) {
        bus.$off(name, this.$busListeners[name])
      }
      this.$busListeners = null
    }
  })
}