Vue v-model组件封装(类似弹窗组件)

Vue.component('base-checkbox', {
 model: {
  prop: 'checked',
  event: 'change'
 },
 props: {
  checked: Boolean
 },
 template: `
  <input
   type="checkbox"
   v-bind:checked="checked"
   v-on:change="$emit('change', $event.target.checked)"
  >
 `
})
<base-checkbox v-model="lovingVue"></base-checkbox>

<!--封装的类弹窗组件-->
<template>
  <div>
    <div v-show="value">这是v-model的弹窗组件</div>
  </div>
</template>
<script>
export default {
  props:{
    value:{
      type:Boolean,
      default:false
    }
  }
}
</script>
<!--父组件-->
<template>
  <div>
    <v-model v-model="value"></v-model>
    <button @click="value=true">点击显示</button>
    <button @click="value=false">点击消失</button>
  </div>
</template>
<script>
import VModel from "./Vmodel"
export default {
  components:{VModel},
  data:function(){
    return {
      value:true
    }
  }
}
</script>

props:{
    value1:{ //失效
      type:Boolean,
      default:false
    }
  }

function transformModel (options, data: any) {
 const prop = (options.model && options.model.prop) || 'value' //子组件不存在options.model，默认给value
 const event = (options.model && options.model.event) || 'input'//event="input"
 ;(data.attrs || (data.attrs = {}))[prop] = data.model.value
 const on = data.on || (data.on = {})
 const existing = on[event] //undefined
 const callback = data.model.callback //f()
 if (isDef(existing)) { //false
  if (
   Array.isArray(existing)
    ? existing.indexOf(callback) === -1
    : existing !== callback
  ) {
   on[event] = [callback].concat(existing)
  }
 } else {
  on[event] = callback //把回调赋值给监听的函数
 }
}

<template>
  <div>
    <div v-show="value">这是v-model的弹窗组件</div>
    <div @click="cancelClick">组件内部调用</div>
  </div>
</template>
<script>
export default {
  props:{
    value:{
      type:Boolean,
      default:false
    },
    model:{
      prop:"value",
      event:'change'
    }
  },
  methods:{
    cancelClick:function(){
      //内部调用这个方法可以进行控制
      this.$emit("change",false)
    }
  }
}
</script>

bool:{
    type:Boolean,
    default:false
  },
model:{
  prop:"bool",
  event:'change'
}

const prop = (options.model && options.model.prop) || 'value' //子组件不存在options.model，默认给value
 const event = (options.model && options.model.event) || 'input'//event="input"