v-model中update:modelValue

v-model的主要原因是由于value和input事件可能另有它用，
那么我们可不可以直接使用另外的属性和方法，而不需要去通过model进行定义。
vue3中就实现了这个功能，v-model绑定的不再是value，而是modelValue，接收的方法也不再是input，而是update:modelValue

写法：

<ChildComponent v-model:title="title" />
//或者
<ChildComponent :modelValue = "title" @update:modelValue = "title = $event">
// 或者
<ChildComponent :title="title" @update:title = "title = $event" />

使用：
父组件

<wm-tinymce
  ref="editor"
  v-model="data.introduction"
  :min-height="400"
  name="职能管理"
  placeholder="请编辑职能大类"
/>

子组件

<div class="tinymce-container">
    <editor
      v-model="tinymceData"
      :api-key="key"
      :init="tinymceOptions"
      :name="name"
      :readonly="tinymceReadOnly"
    />
</div>
<script>
  import { ref, watch, watchEffect } from 'vue'
  import Editor from '@tinymce/tinymce-vue'
  import { key, plugins, toolbar, setting } from './config'
  export default {
    name: 'WmTinymce',
    components: { Editor },
    props: {
      modelValue: {
        type: String,
        default: '',
      },
      readOnly: {
        type: Boolean,
        default: false,
      },
      options: {
        type: Object,
        default() {
          return { plugins, toolbar }
        },
      },
      name: {
        type: String,
        default: '',
      },
    },
    emits: ['update:modelValue'],
    setup(props, { emit }) {
      const tinymceData = ref(props.modelValue) // 编辑器数据
      watch(
        () => tinymceData.value,
        (data) => emit('update:modelValue', data)
      ) // 监听富文本输入值变动
      return {
        tinymceData,
      }
    },
  }
</script>

---

项目中使用： 富文本编辑器数据问题 父组件

 <wm-tinymce
  ref="editor"
  v-model="data.introduction"
/>

子组件

<template>
  <div class="tinymce-container">
    <editor
      v-model="tinymceData"
      :api-key="key"
      :init="tinymceOptions"
      :name="tinymceName"
      :readonly="tinymceReadOnly"
    />
  </div>
</template>

<script>
  import { ref, watch, computed, onMounted } from 'vue'

  import tinymce from 'tinymce/tinymce'
  import { setupPreview, setupWmPreview, setupIndent2em } from './plugins'
  import { key, plugins, toolbar, setting } from './config'

  import Editor from '@tinymce/tinymce-vue'
  import Modal from './modal/index.vue'

  export default {
    name: 'WmTinymce',
    components: {
      Editor,
    },
    props: {
      modelValue: {
        type: String,
        default: '',
      },
    },
    emits: ['update:modelValue'],
    setup(props, { emit }) {
      
      const tinymceData = ref(props.modelValue) // 编辑器数据

      watch(
        () => props.modelValue,
        (d) => (tinymceData.value = d)
      )
      watch(
        () => tinymceData.value,
        (data) => emit('update:modelValue', data)
      ) // 监听富文本输入值变动


      return {
        tinymceData,
      }
    },
  }
</script>