create-app.js 1.2 KB
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import Vue from 'vue'

import {
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  initRefs,
  initHooks,
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  initMocks
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} from './util'

const hooks = [
  'onShow',
  'onHide',
  'onError',
  'onPageNotFound'
]

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export function createApp (vm) {
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  // 外部初始化时 Vue 还未初始化,放到 createApp 内部初始化 mixin
  Vue.mixin({
    beforeCreate () {
      if (!this.$options.mpType) {
        return
      }
      this.mpType = this.$options.mpType
      this.$mp = {
        data: {},
        [this.mpType]: this.$options.mpInstance
      }
      delete this.$options.mpType
      delete this.$options.mpInstance

      if (this.mpType !== 'app') {
        initRefs(this)
        initMocks(this)
      }
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    },
    created () { // 处理 injections
      this.__init_injections(this)
      this.__init_provide(this)
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    }
  })
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  const appOptions = {
    onLaunch (args) {
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      this.$vm = vm
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      this.$vm._isMounted = true
      this.$vm.__call_hook('mounted')

      this.$vm.__call_hook('onLaunch', args)
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    }
  }

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  initHooks(appOptions, hooks) // 延迟执行,因为 App 的注册在 main.js 之前,可能导致生命周期内 Vue 原型上开发者注册的属性无法访问
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  App(appOptions)

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  return vm
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}