mpVue 微信小程序基于vant-weapp 组件的二次封装TForm 表单组件(适配移动端)——新增仓库地址

一、前言

1、mpVue微信小程序不支持动态组件(

2、mpVue微信小程序不支持动态属性及事件穿透($attrs$listeners

3、mpVue微信小程序不支持render函数

二、最终效果

三、配置参数(Attributes)

1. 简介:基于 vant-weapp 组件的二次封装,着重于数据层面,HTML 一行代码

TForm 表单组件
代码示例:

<t-form
  ref="t-form"
  :formOpts="formOpts"
  :listDefaultInfo="formOpts.listDefaultInfo"
  :listTypeInfo="formOpts.listTypeInfo"
  />

2. 配置参数

参数 说明 类型 默认值
className 自定义类名 String -
listTypeInfo 下拉选择数据源(type:'date/datetime/radio/checkbox’有效) Object {}
listDefaultInfo 下拉选择默认值及弹窗字段(type:'date/datetime/radio/checkbox’有效) Object {}
formOpts 表单配置项 Object {}
—fieldList form 表单每项 list (输入框继承van-field) Array []
------slotName 自定义表单某一项输入框 String/slot -
------event type非date/datetime/radio/checkbox有效 String -
------type date/datetime/radio/checkbox/text/password/textarea String -
------label form 表单每一项 title String -
------slotLabelName 自定义某一项 title String/slot -
------slotRightIcon van-field右侧icon Object -
----------name icon 名称 String -
----------fun 点击icon事件 funciton -
----------color icon颜色 String -
------slotButton van-field右侧按钮 Object -
----------name 插槽名 String -
----------fun 点击按钮事件 funciton -
----------type 继承van-button type String -
----------size 继承van-button size String -
------value form 表单每一项传给后台的参数(对应formData每一项) String -
------required 是否显示红点 Boolean false
------list 下拉选择数据源(仅仅对 type:'date/datetime/radio/checkbox’有效) String -
------defaultValue 表单下拉选择回显界面值(type:'date/datetime/radio/checkbox’有效) String -
------defaultPopup 表单下拉选择弹窗字段值(type:'date/datetime/radio/checkbox’有效) String -
—formData 表单提交数据(对应 fieldList 每一项的 value 值) Object -
—rules 三种规则校验(required(是否必填)/min:max(最小最大)/pattern(正则校验) Object -

3. events

事件名 说明 返回值
handleEvent 输入框触发事件 fieldList event 值及/输入框–输入的值

4. Methods

事件名 说明 参数
validateField 单个字段校验 传入rules值
validate 整个表单校验成功返回true -

四、源码

<template>
  <div :class="['t_form',className]">
    <div v-for="(item, index) in formOpts.fieldList" :key="index">
      
      <van-cell-group v-if="item.type === 'date'">
        <van-cell
          :title="item.label"
          :required="item.required"
          input-align="right"
          is-link
          :value-class="listDefaultInfo[item.defaultValue]?'van-cell_date_select':'van-cell_date'"
          :arrow-direction="listDefaultInfo[item.defaultPopup]?'down':''"
          :value="listDefaultInfo[item.defaultValue] || item.placeholder"
          @click="listDefaultInfo[item.defaultPopup] = true"
        />
        <van-popup :show="listDefaultInfo[item.defaultPopup]" position="bottom" round>
          <div class="popup_wrap">
            <van-datetime-picker
              :type="item.type||'date'"
              :value="formOpts.formData[item.value]"
              @cancel="listDefaultInfo[item.defaultPopup] = false"
              @confirm="(e) => {listDefaultInfo[item.defaultValue] = dayjs(e.mp.detail).format('YYYY-MM-DD'),formOpts.formData[item.value] = dayjs(e.mp.detail).format('YYYY-MM-DD'),listDefaultInfo[item.defaultPopup] = false}"
            />
          div>
        van-popup>
      van-cell-group>
      
      <van-cell-group v-else-if="item.type === 'datetime'">
        <van-cell
          :title="item.label"
          input-align="right"
          :required="item.required"
          is-link
          :value="listDefaultInfo[item.defaultValue] || item.placeholder"
          :arrow-direction="listDefaultInfo[item.defaultPopup]?'down':''"
          :value-class="listDefaultInfo[item.defaultValue]?'van-cell_date_select':'van-cell_date'"
          @click="listDefaultInfo[item.defaultPopup] = true"
        />
        <van-popup :show="listDefaultInfo[item.defaultPopup]" position="bottom" round>
          <div class="popup_wrap">
            <van-datetime-picker
              :type="item.type||'datetime'"
              :value="formOpts.formData[item.value]"
              @cancel="listDefaultInfo[item.defaultPopup] = false"
              @confirm="(e) => {listDefaultInfo[item.defaultValue] = dayjs(e.mp.detail).format('YYYY-MM-DD HH:mm:ss'),formOpts.formData[item.value] = dayjs(e.mp.detail).format('YYYY-MM-DD HH:mm:ss'),listDefaultInfo[item.defaultPopup] = false}"
            />
          div>
        van-popup>
      van-cell-group>
      
      <van-cell-group v-else-if="item.type === 'radio'">
        <van-cell
          :title="item.label"
          input-align="right"
          :required="item.required"
          is-link
          :value="listDefaultInfo[item.defaultValue] || item.placeholder"
          :arrow-direction="listDefaultInfo[item.defaultPopup]?'down':''"
          :value-class="listDefaultInfo[item.defaultValue]?'van-cell_date_select':'van-cell_date'"
          @click="listDefaultInfo[item.defaultPopup] = true"
        />
        <van-popup :show="listDefaultInfo[item.defaultPopup]" position="bottom" round>
          <van-picker
            show-toolbar
            :title="item.label"
            :columns="listTypeInfo[item.list]"
            @cancel="listDefaultInfo[item.defaultPopup] = false"
            @confirm="(e) => {listDefaultInfo[item.defaultValue] = e.mp.detail.value,formOpts.formData[item.value] = e.mp.detail.value,listDefaultInfo[item.defaultPopup] = false}"
          />
        van-popup>
      van-cell-group>
      
      <van-cell-group v-else-if="item.type === 'checkbox'">
        <van-cell
          :title="item.label"
          input-align="right"
          :required="item.required"
          is-link
          :value="listDefaultInfo[item.defaultValue].length>0?listDefaultInfo[item.defaultValue]:listDefaultInfo[item.defaultValue].length || item.placeholder"
          :arrow-direction="listDefaultInfo[item.defaultPopup]?'down':''"
          :value-class="listDefaultInfo[item.defaultValue].length?'van-cell_date_select':'van-cell_date'"
          @click="listDefaultInfo[item.defaultPopup] = true"
        />
        <van-popup
          :show="listDefaultInfo[item.defaultPopup]"
          custom-class="t_checkbox_picker"
          position="bottom"
          round
        >
          <div class="t_checkbox_picker__toolbar">
            <div
              class="t_checkbox_picker__cancel"
              @click="listDefaultInfo[item.defaultPopup] = false"
            >取消div>
            <div class="t_checkbox_picker__title t-oneline-overflow-hidden">{{item.label}}div>
            <div
              class="t_checkbox_picker__confirm"
              @click="() => {formOpts.formData[item.value] = listDefaultInfo[item.defaultValue],listDefaultInfo[item.defaultPopup] = false}"
            >确认div>
          div>
          <van-checkbox-group
            :value="listDefaultInfo[item.defaultValue]"
            @change="(event)=>listDefaultInfo[item.defaultValue] = event.mp.detail"
          >
            <div
              v-for="(value,key) in listTypeInfo[item.list]"
              :key="key"
              class="t_checkbox_content"
            >
              <van-checkbox
                custom-class="t_checkbox"
                :name="value[arrLabel || 'label']"
                :disabled="value.disabled||false"
                shape="square"
              >{{value[arrLabel || 'label']}}van-checkbox>
            div>
          van-checkbox-group>
        van-popup>
      van-cell-group>
      
      <template v-else-if="item.slotName">
        <slot :name="item.slotName">slot>
      template>
      
      <van-cell-group v-else>
        <van-field
          :name="item.value"
          v-model="formOpts.formData[item.value]"
          :placeholder="item.placeholder||''"
          :label="item.label"
          :type="item.type"
          :disabled="item.disabled"
          :readonly="item.readonly"
          :required="item.required"
          :title-width="item.titleWidth||'6.2em'"
          :maxlength="item.maxlength||-1"
          :cursor="item.cursor||0"
          :show-word-limit="item.showWordLimit"
          :is-link="item.isLink"
          :input-align="item.inputAlign||'right'"
          :autosize="item.autosize||item.type==='textarea'"
          :left-icon="item.leftIcon||''"
          :right-icon="item.rightIcon||''"
          clearable
          @change="e => formOpts.formData[item.value] = e.mp.detail"
          @click="() =>$emit('handleEvent',item.event,formOpts.formData[item.value])"
        >
          
          <div
            v-if="!item.label"
            :class="item.labelNameClass"
            :style="item.labelNameStyle"
            slot="label"
          >
            <slot :name="item.slotLabelName" />
          div>
          <van-icon
            v-if="item.slotLeftIcon"
            :class="item.slotLeftIcon.class"
            :color="item.slotLeftIcon.color||'inherit'"
            @click="item.slotLeftIcon.fun"
            :name="item.slotLeftIcon.name"
            slot="left-icon"
          />
          <van-icon
            v-if="item.slotRightIcon"
            :class="item.slotRightIcon.class"
            :color="item.slotRightIcon.color||'inherit'"
            :name="item.slotRightIcon.name"
            @click="item.slotRightIcon.fun"
            slot="right-icon"
          />
          <van-button
            v-if="item.slotButton&&item.slotButton.name"
            :class="item.slotButton.class"
            :style="item.slotButton.style"
            :size="item.slotButton.size"
            :type="item.slotButton.type"
            @click="item.slotButton.fun"
            slot="button"
          >
            <slot :name="item.slotButton.name" />
          van-button>
        van-field>
      van-cell-group>
    div>
  div>
template>
<script>
import dayjs from 'dayjs'
export default {
  name: 'TForm',
  components: {},
  props: {
    /** 表单配置项说明
     * formData object 表单提交数据
     * rules object 验证规则
     * fieldList Array 表单渲染数据
     */
    formOpts: {
      type: Object,
      default: () => ({})
    },
    // 下拉选项数据
    listTypeInfo: {
      type: Object,
      default: () => ({})
    },
    // 下拉选择默认值
    listDefaultInfo: {
      type: Object,
      default: () => ({})
    },
    className: String
  },
  computed: {
    dayjs() {
      return dayjs
    }
  },
  watch: {
    'formOpts.fieldList': {
      handler(val) {
        // console.log('fieldList---watch', val)
        val.map(item => {
          // 插槽提示
          if (item.slotLabelName) {
            !Object.keys(this.$slots).includes(item.slotLabelName) && this.$toast(`请在表单组件添加${item.slotLabelName}插槽!`)
          }
          setTimeout(() => {
            if (item.slotButton && item.slotButton.name) {
              !Object.keys(this.$slots).includes(item.slotButton.name) && this.$toast(`请在表单组件添加${item.slotButton.name}插槽!`)
            }
          }, 2000)
          setTimeout(() => {
            if (item.slotName) {
              !Object.keys(this.$slots).includes(item.slotName) && this.$toast(`请在表单组件添加${item.slotName}插槽!`)
            }
          }, 3000)
        })
      },
      immediate: true,
      deep: true // 深度监听
    }
  },
  data() {
    return {
      ...this.listDefaultInfo
    }
  },
  methods: {
    // 单个字段校验
    validateField(key) {
      let value = this.formOpts.formData[key]
      if (this.formOpts.rules[key] && this.formOpts.rules[key].length) {
        for (let i = 0; i < this.formOpts.rules[key].length; i++) {
          let rule = this.formOpts.rules[key][i]
          if (rule.required) {
            // 必填校验
            if (!value) {
              return {
                valid: false,
                msg: rule.message
              }
            }
          } else if (rule.max || rule.min) {
            // 最大最小长度校验
            if (value && (value.length > rule.max || value.length < rule.min)) {
              return {
                valid: false,
                msg: rule.message
              }
            }
          } else if (rule.pattern && value) {
            // 正则校验
            let reg = new RegExp(rule.pattern)
            if (!reg.test(value)) {
              return {
                valid: false,
                msg: rule.message
              }
            }
          }
        }
      }
      return {
        valid: true
      }
    },
    // 全部校验
    validate() {
      let res = []
      Object.keys(this.formOpts.rules).forEach(key => {
        res.push(this.validateField(key))
      })
      for (let i = 0; i < res.length; i++) {
        if (!res[i].valid) {
          wx.showToast({
            title: res[i].msg,
            icon: 'none'
          })
          return false
        }
      }
      return true
    }
  }
}
script>
<style lang="scss">
.t_form {
  .van-cell_date {
    color: var(--cell-value-color, #c8c9cc);
  }
  .van-cell_date_select {
    color: var(--cell-value-color, #000);
  }
  .t_checkbox_picker {
    min-height: 260px;
    padding: 10px 15px;
    .t_checkbox_picker__toolbar {
      display: flex;
      height: var(--picker-toolbar-height, 44px);
      justify-content: space-between;
      line-height: var(--picker-toolbar-height, 44px);
      .t_checkbox_picker__cancel,
      .t_checkbox_picker__confirm {
        font-size: var(--picker-action-font-size, 14px);
        padding: var(--picker-action-padding, 0 16px);
      }
      .t_checkbox_picker__cancel {
        color: var(--picker-cancel-action-color, #969799);
      }
      .t_checkbox_picker__title {
        font-size: var(--picker-option-font-size, 16px);
        font-weight: var(--font-weight-bold, 500);
        max-width: 50%;
        text-align: center;
      }
      .t_checkbox_picker__confirm {
        color: var(--picker-confirm-action-color, #576b95);
      }
    }
    ._van-checkbox-group {
      .t_checkbox_content {
        margin: 10px;
      }
    }
  }
}
style>

五、页面使用

<template>
  <div class="demo_form">
    <t-header title="表单组件示例" />
    <t-form
      ref="t-form"
      :formOpts="formOpts"
      :listDefaultInfo="formOpts.listDefaultInfo"
      :listTypeInfo="formOpts.listTypeInfo"
    >
      <div slot="custom">自定义labeldiv>
      <div slot="button">发送验证码div>
    t-form>
    <van-button block type="primary" @click="formCom">表单组件van-button>
  div>
template>
<script>
import TForm from '@/components/TForm/index.vue'
export default {
  name: 'DemoForm',
  components: {
    TForm
  },
  data() {
    return {
      formOpts: {
        formData: {
          account: '', // *用户账号
          password: '', // *用户密码
          name: '', // *用户昵称
          email: '', // 邮箱
          desc: '', // 描述
          sex: '', // *性别: 0:男 1:女
          status: '', // *状态: 停用,启用',
          hobby: '', // *爱好:多选
          creatDate: '', // 出生日期
          date: '', // 出生日期---时分秒
          phone: '' // 手机号码
        },
        // 下拉选择默认值
        listDefaultInfo: {
          statusDefault: '',
          statusPopup: false,
          sexDefault: '',
          sexPopup: false,
          showDatePopup: false, // 日期弹窗
          showDatetimePopup: false, // 日期弹窗(含时分秒)
          dateDefault: '', // 默认日期-- 年月日
          datetimeDefault: '', // 默认日期--含时分秒
          hobbyPopup: false, // 爱好弹窗
          hobbyDefault: [] // 爱好
        },
        fieldList: [
          { label: '账号', value: 'account', type: 'text', placeholder: '请输入账号', required: true },
          { label: '', value: 'password', type: 'password', placeholder: '请输入密码', required: true, slotLabelName: 'custom', labelNameStyle: 'color:red', slotRightIcon: { name: 'location-o', fun: this.clickIcon } },
          { label: '昵称', value: 'name', type: 'text', placeholder: '请输入昵称', required: true, slotButton: { name: 'button', size: 'small', type: 'primary', fun: this.test } },
          { label: '邮箱', value: 'email', type: 'text', placeholder: '请输入邮箱', required: true },
          { label: '出生日期', value: 'creatDate', type: 'date', placeholder: '请选择出生日期', defaultValue: 'dateDefault', defaultPopup: 'showDatePopup' },
          { label: '日期时分秒', value: 'date', type: 'datetime', placeholder: '请选择日期时分秒', defaultValue: 'datetimeDefault', defaultPopup: 'showDatetimePopup' },
          { label: '性别', value: 'sex', type: 'radio', list: 'sexList', placeholder: '请选择性别', defaultValue: 'sexDefault', defaultPopup: 'sexPopup' },
          { label: '爱好', value: 'hobby', type: 'checkbox', list: 'hobbyList', placeholder: '请选择爱好(多选)', required: true, defaultValue: 'hobbyDefault', defaultPopup: 'hobbyPopup' },
          { label: '状态', value: 'status', type: 'radio', list: 'statusList', placeholder: '请选择状态', defaultValue: 'statusDefault', defaultPopup: 'statusPopup' },
          { label: '手机号码', value: 'phone', type: 'text', maxlength: 11, placeholder: '请输入手机号码', required: true },
          { label: '描述', value: 'desc', type: 'textarea', placeholder: '请输入描述', autosize: { maxHeight: 80, minHeight: 50 } }
        ],
        rules: {
          account: [
            { required: true, message: '请输入账号' },
            { min: 2, max: 4, message: '账号只能大于2个字符小于4个字符' }
          ],
          password: [{ required: true, message: '请输入密码' }],
          name: [{ required: true, message: '请输入昵称' }],
          email: [
            { required: true, message: '请输入邮箱' },
            { pattern: /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/, message: '请输入正确的邮箱' }
          ],
          hobby: [{ required: true, message: '请至少选择一个爱好' }],
          phone: [
            { required: true, message: '请输入手机号码' },
            { pattern: /^1[3456789]\d{9}$/, message: '请输入正确的手机号码' }
          ]
        },
        // 相关列表
        listTypeInfo: {
          hobbyList: [
            { label: '吉他', value: '0' },
            { label: '看书', value: '1' },
            { label: '美剧', value: '2' },
            { label: '旅游', value: '3' },
            { label: '音乐', value: '4' }
          ],
          sexList: ['女', '男'],
          statusList: ['启用', '停用']
        }
      }
    }
  },
  methods: {
    // TForm表单提交
    formCom() {
      console.log('form组件点击提交--数据', this.formOpts.formData)
      let res = this.$refs['t-form'].validate()
      console.log('提交数据规则', res)
      if (!res) return
      console.log('全部校验通过--最终数据', this.formOpts.formData)
    },
    test(val) {
      console.log('测试点击右侧按钮---', val)
    },
    clickIcon(val) {
      console.log('点击图标', val)
    }
  }
}
script>
<style lang="scss">
.demo_form {
  width: 100%;
}
style>

六、仓库地址

gitHub地址

码云地址

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