vue3+elementui-plus实现函数式dialog（初级版本）

将dialog文件内容单独管理，减少主文件的代码量

在plugins路径下添加dialog.ts

一、dialog.ts代码

import { h, render } from 'vue';

function createDialog(component: any, options: any) {
  return new Promise((resolve, reject) => {
    const mountNode = document.createElement('div');
    document.body.appendChild(mountNode);
    const vNode = h(component, {
      ...options,
      // 注意: vue子组件emit回调事件名称必须以on开头
      onSubmit: (data) => {
        resolve(data);
        document.body.removeChild(mountNode);
      },
      onCancel: (data) => {
        reject(data);
        document.body.removeChild(mountNode);
      },
    });
    render(vNode, mountNode);
  });
}

export default createDialog;

二、在main.ts引入

// 引入函数式弹窗
import Dialog from '~/plugins/Dialog';

const app = createApp(App);

// 全局方法挂载
app.config.globalProperties.$dialog = Dialog;

三、在文件中使用$dialog

import processingResultsDilog from './dialog/processingResults.vue';

function openHandleDialog(row) {
  proxy
    .$dialog(processingResultsDilog, {
      title: '新增弹框',
      data: row,
    })
    .then((res) => {
      // submit
      console.log(res);
    })
    .catch((error) => {
      // cancel 回调
      console.log(error);
    });
}

四、processingResultsDilog文件内容

<template>
  <el-dialog
    v-model="dialogVisible" :title="title" width="35%"
  >
    <el-form ref="formRef" :model="form" >
      <el-form-item label="是否:" prop="falseAlarm">
        <el-radio-group v-model="form.falseAlarm">
          <el-radio :value="1">
            是
          </el-radio>
          <el-radio :value="0">
            否
          </el-radio>
        </el-radio-group>
      </el-form-item>
      <el-form-item label="原因:" prop="reason">
        <el-input v-model="form.reason" :rows="4" type="textarea" placeholder="请输入原因" />
      </el-form-item>
    </el-form>
    <template #footer>
      <span class="dialog-footer">
        <el-button type="primary" @click="handleSubmit">保存</el-button>
        <el-button @click="handleCancel">取消</el-button>
      </span>
    </template>
  </el-dialog>
</template>

<script lang="ts" setup>
import { reactive, toRefs } from 'vue';
import { ElButton, ElDialog, ElRadio } from 'element-plus';

const props = withDefaults(
  defineProps<{
    title?: string; // 标题
    data?: any; // 内容
  }>(),
  {},
);

const emits = defineEmits<{ submit: [any]; cancel: [any]; }>();
const state = reactive({
  dialogVisible: true,
});
const { dialogVisible } = toRefs(state);

const form = ref({
  reason: '',
  falseAlarm: 0,
});

/** submit */
const handleSubmit = () => {
emits('submit', form.value);
  // 关闭弹窗
  dialogVisible.value = false;
};

/** cancel */
const handleCancel = () => {
  // 回调
  // emits('cancel', { action: 'cancel', msg: 'cancel back' });
  // 关闭弹窗
  dialogVisible.value = false;
};
const formRef = ref();
</script>