cmanager/src/components/verifition/Verify/VerifyPoints.vue

<template>
  <div style="position: relative">
    <div class="verify-img-out">
      <div
        class="verify-img-panel"
        :style="{'width': setSize.imgWidth,
                                                   'height': setSize.imgHeight,
                                                   'background-size' : setSize.imgWidth + ' '+ setSize.imgHeight,
                                                   'margin-bottom': vSpace + 'px'}"
      >
        <div class="verify-refresh" style="z-index:3" @click="refresh" v-show="showRefresh">
          <i class="iconfont icon-refresh"></i>
        </div>
        <img
          :src="'data:image/png;base64,'+pointBackImgBase"
          ref="canvas"
          alt
          style="width:100%;height:100%;display:block"
          @click="bindingClick?canvasClick($event):undefined"
        />

        <div
          v-for="(tempPoint, index) in tempPoints"
          :key="index"
          class="point-area"
          :style="{
                        'background-color':'#1abd6c',
                        color:'#fff',
                        'z-index':9999,
                        width:'20px',
                        height:'20px',
                        'text-align':'center',
                        'line-height':'20px',
                        'border-radius': '50%',
                        position:'absolute',
                        top:parseInt(tempPoint.y-10) + 'px',
                        left:parseInt(tempPoint.x-10) + 'px'
                     }"
        >{{index + 1}}</div>
      </div>
    </div>
    <!-- 'height': this.barSize.height, -->
    <div
      class="verify-bar-area"
      :style="{'width': setSize.imgWidth,
                      'color': this.barAreaColor,
                      'border-color': this.barAreaBorderColor,
                      'line-height':this.barSize.height}"
    >
      <span class="verify-msg">{{text}}</span>
    </div>
  </div>
</template>
<script type="text/babel">
/**
 * VerifyPoints
 * @description 点选
 * */
import { resetSize } from './../utils/util'
import { aesEncrypt } from "./../utils/ase"
import { reqGet, reqCheck } from "./../api/index"

export default {
  name: 'VerifyPoints',
  props: {
    //弹出式pop，固定fixed
    mode: {
      type: String,
      default: 'fixed'
    },
    captchaType: {
      type: String,
    },
    //间隔
    vSpace: {
      type: Number,
      default: 5
    },
    imgSize: {
      type: Object,
      default () {
        return {
          width: '310px',
          height: '155px'
        }
      }
    },
    barSize: {
      type: Object,
      default () {
        return {
          width: '310px',
          height: '40px'
        }
      }
    }
  },
  data () {
    return {
      secretKey: '',           //后端返回的ase加密秘钥
      checkNum: 3,             //默认需要点击的字数
      fontPos: [],            //选中的坐标信息
      checkPosArr: [],        //用户点击的坐标
      num: 1,                 //点击的记数
      pointBackImgBase: '',    //后端获取到的背景图片
      poinTextList: [],        //后端返回的点击字体顺序
      backToken: '',           //后端返回的token值
      setSize: {
        imgHeight: 0,
        imgWidth: 0,
        barHeight: 0,
        barWidth: 0
      },
      tempPoints: [],
      text: '',
      barAreaColor: undefined,
      barAreaBorderColor: undefined,
      showRefresh: true,
      bindingClick: true
    }
  },
  computed: {
    resetSize () {
      return resetSize
    }
  },
  methods: {
    init () {
      //加载页面
      this.fontPos.splice(0, this.fontPos.length)
      this.checkPosArr.splice(0, this.checkPosArr.length)
      this.num = 1
      this.getPictrue();
      this.$nextTick(() => {
        this.setSize = this.resetSize(this)	//重新设置宽度高度
        this.$parent.$emit('ready', this)
      })
    },
    canvasClick (e) {
      this.checkPosArr.push(this.getMousePos(this.$refs.canvas, e));
      if (this.num == this.checkNum) {
        this.num = this.createPoint(this.getMousePos(this.$refs.canvas, e));
        //按比例转换坐标值
        this.checkPosArr = this.pointTransfrom(this.checkPosArr, this.setSize);
        //等创建坐标执行完
        setTimeout(() => {
          // var flag = this.comparePos(this.fontPos, this.checkPosArr);
          //发送后端请求
          var captchaVerification = this.secretKey ? aesEncrypt(this.backToken + '---' + JSON.stringify(this.checkPosArr), this.secretKey) : this.backToken + '---' + JSON.stringify(this.checkPosArr)
          let data = {
            captchaType: this.captchaType,
            "pointJson": this.secretKey ? aesEncrypt(JSON.stringify(this.checkPosArr), this.secretKey) : JSON.stringify(this.checkPosArr),
            "token": this.backToken
          }
          reqCheck(data).then(res => {
            if (res.repCode == "0000") {
              this.barAreaColor = '#4cae4c'
              this.barAreaBorderColor = '#5cb85c'
              this.text = '验证成功'
              this.bindingClick = false
              if (this.mode == 'pop') {
                setTimeout(() => {
                  this.$parent.clickShow = false;
                  this.refresh();
                }, 1500)
              }
              this.$parent.$emit('success', { captchaVerification })
            } else {
              this.$parent.$emit('error', this)
              this.barAreaColor = '#d9534f'
              this.barAreaBorderColor = '#d9534f'
              this.text = '验证失败'
              setTimeout(() => {
                this.refresh();
              }, 700);
            }
          })
        }, 400);
      }
      if (this.num < this.checkNum) {
        this.num = this.createPoint(this.getMousePos(this.$refs.canvas, e));
      }
    },

    //获取坐标
    getMousePos: function (obj, e) {
      var x = e.offsetX
      var y = e.offsetY
      return { x, y }
    },
    //创建坐标点
    createPoint: function (pos) {
      this.tempPoints.push(Object.assign({}, pos))
      return ++this.num;
    },
    refresh: function () {
      this.tempPoints.splice(0, this.tempPoints.length)
      this.barAreaColor = '#000'
      this.barAreaBorderColor = '#ddd'
      this.bindingClick = true
      this.fontPos.splice(0, this.fontPos.length)
      this.checkPosArr.splice(0, this.checkPosArr.length)
      this.num = 1
      this.getPictrue();
      this.text = '验证失败'
      this.showRefresh = true
    },

    // 请求背景图片和验证图片
    getPictrue () {
      let data = {
        captchaType: this.captchaType
      }
      reqGet(data).then(res => {
        if (res.repCode == "0000") {
          this.pointBackImgBase = res.repData.originalImageBase64
          this.backToken = res.repData.token
          this.secretKey = res.repData.secretKey
          this.poinTextList = res.repData.wordList
          this.text = '请依次点击【' + this.poinTextList.join(",") + '】'
        } else {
          this.text = res.repMsg;
        }
      })
    },
    //坐标转换函数
    pointTransfrom (pointArr, imgSize) {
      var newPointArr = pointArr.map(p => {
        let x = Math.round(310 * p.x / parseInt(imgSize.imgWidth))
        let y = Math.round(155 * p.y / parseInt(imgSize.imgHeight))
        return { x, y }
      })
      return newPointArr
    }
  },
  watch: {
    // type变化则全面刷新
    type: {
      immediate: true,
      handler () {
        this.init()
      }
    }
  },
  mounted () {
    // 禁止拖拽
    this.$el.onselectstart = function () {
      return false
    }
  },
}
</script>