<template>
  <div>
    <el-button @click="showPopup">余额支付</el-button>

    <!--以下是密码输入-->
        <van-popup v-model="passshow"
                   closeable
                   close-icon-position="top-left"
                   position="bottom"
                   :style="{ height: '70%' }">
          <div class="popup">
            <p>余额支付</p>
            <div class="popup_title">
              <div class="popup_title_">请输入支付密码</div>
            </div>
            <!-- 密码输入框 -->
            <van-password-input
              :value="password"
              :focused="showKeyboard"/>
          </div>
        </van-popup>
        <div class="popup_">
          <!-- 数字键盘 -->
          <van-number-keyboard :show="passshow" @input="onInput" @delete="onDelete"/>
        </div>
        <!--密码输入 end-->
 
  </div>

  
</template>
<script>
export default { 
  data() {
    return {
      passshow: false,     //密码弹窗
      showKeyboard: false,    //数字键盘显示隐藏
      password: "",      //支付密码
    }
  },  
  mounted() {
  },

  methods: {
   //余额支付 弹出
   showPopup() {
      this.passshow = true;
      this.password = ''
    },
    //密码输入函数
    onInput(key) {
      this.password = (this.password + key).slice(0, 6);
      if (this.password.length == 6) {
        //确定密码
        this.passshow = false;
        this.$toast('支付成功！')
        console.log("确定支付" + this.password)
      }
    },
    onDelete() {
      this.password = this.password.slice(0, this.password.length - 1);
    },
  }
}
</script>
<style scoped>
  /*密码输入框*/
.popup{width:100%;height:100%;border-radius:7px;height:50px;line-height:50px;text-align:center;font-size:18px;font-family:Source Han Sans CN;font-weight:500;color:#333}
.popup_title{height:49px;display:flex;align-items:center;justify-content:center;font-size:16px;font-family:Source Han Sans CN;font-weight:500;color:#666}
.popup_{position:fixed;bottom:0;z-index:99999}

</style>

 

<template>
  <div>
    <van-field readonly label="￥" clickable :value="value1" @touchstart.native.stop="show = true" />
    <van-number-keyboard theme="custom" :show="show" :title="'￥'+value1" :hide-on-click-outside="false" :maxlength="maxlength" extra-key="." @input="handleInput"  @delete="handleDelete" @close="handleClose"  close-button-text="确定"  @blur="show = false" ></van-number-keyboard>
 
  </div>

  
</template>
<script>
import { Field, NumberKeyboard } from 'vant';
export default {
  name: 'MoneyKeyboard',
  props: {
    value: '',
    maxlength: 8
  },
  data() {
    return {
      show: false,
      value1: ''
    }
  },
  watch: {
    value: function (v) {
      this.value1 = v + '';
    },
    value1(val){
      if(/^0[1-9]/.test(val)){
        this.value1 = val.substring(1);
      }
    }
  },
  components: {
    [Field.name]: Field,
    [NumberKeyboard.name]: NumberKeyboard,
  },
  mounted() {
  },

  methods: {
    handleInput(key){
      this.value1 = this.value1 + '';
      if(this.value1 === '' && key === '.'){
        this.value1 = '0';
      }else if(this.value1.indexOf('.') !== -1 && key === '.'){
        return;
      }else if(this.value1.indexOf('0') !== -1 && this.value1.length === 1 && key === 0){
        return;
      }else if(/\.\d{2}$/.test(this.value1)){
        return;
      }
      this.value1 += key;
    },
    handleDelete(){
      this.value1 = this.value1 + '';
      if(!this.value1){
        return;
      }
      this.value1 = this.value1.substring(0,this.value1.length - 1);
    },
    handleClose() {
      this.value1 = Number(this.value1);
      this.$emit('input', this.value1);
    }
  }
}
</script>
<style scoped>
</style>