vue 实现滑块验证码

图一为拖拽前效果，图二为拖拽后效果

一、新建文件JcRange.vue，代码如下：

　　1、模板代码:

 <template>
   <div class="jc-component__range">
     <div class="jc-range" :class="rangeStatus?'success':''" >
         <i @mousedown="rangeMove" :class="rangeStatus?successIcon:startIcon"></i>
         {{rangeStatus?successText:startText}}
     </div>
   </div>
 </template>

　　2、js代码

<script>
export default {
    props: {
        // 成功之后的函数
        successFun: {
            type: Function
        },
        //成功图标
        successIcon: {
            type: String,
            default: 'el-icon-success'
        },
        //成功文字
        successText: {
            type: String,
            default: '验证成功'
        },
        //开始的图标
        startIcon: {
            type: String,
            default: 'el-icon-d-arrow-right'
        },
        //开始的文字
        startText: {
            type: String,
            default: '请拖住滑块，拖动到最右边'
        },
        //失败之后的函数
        errorFun: {
            type: Function
        },
        //或者用值来进行监听
        status: {
            type: String
        }
    },
    data(){
        return {
            disX : 0,
            rangeStatus: false
        }
    },
  methods:{
        //滑块移动
        rangeMove(e){
            let ele = e.target;
            let startX = e.clientX;
            let eleWidth = ele.offsetWidth;
            let parentWidth =  ele.parentElement.offsetWidth;
            let MaxX = parentWidth - eleWidth;
            if(this.rangeStatus){//不运行
                return false;
            }
            document.onmousemove = (e) => {
                let endX = e.clientX;
                this.disX = endX - startX;
                if(this.disX<=0){
                    this.disX = 0;
                }
                if(this.disX>=MaxX-eleWidth){//减去滑块的宽度,体验效果更好
                    this.disX = MaxX;
                }
                ele.style.transition = '.1s all';
                ele.style.transform = 'translateX('+this.disX+'px)';
                e.preventDefault();
            }
            document.onmouseup = ()=> {
                if(this.disX !== MaxX){
                    ele.style.transition = '.5s all';
                    ele.style.transform = 'translateX(0)';
                    //执行成功的函数
                    this.errorFun && this.errorFun();
                }else{
                    this.rangeStatus = true;
                    if(this.status){
                        this.$parent[this.status] = true;
                    }
                    //执行成功的函数
                    this.successFun && this.successFun();
                }
                document.onmousemove = null;
                document.onmouseup = null;
            }
        }
    }
};
</script>

　　3、css 代码（此处使用了sass）

<style lang="scss" scoped>
@mixin jc-flex{
    display: flex;
    justify-content: center;
    align-items: center;
}
.jc-component__range{
    .jc-range{
        background-color: #e9e9e9;
        position: relative;
        transition: 1s all;
        user-select: none;
        color: #585858;
        @include jc-flex;
        height: 50px; /*no*/
        &.success{
            background-color: #3bc923;
            color: #fff;
            i{
                color: #3bc923;
            }
        }
        i{
            position: absolute;
            left:;
            width: 50px;/*no*/
            height: 100%;
            color: #3fcd26;
            background-color: #fff;
            border: 1px solid #d8d8d8;
            cursor: pointer;
            font-size: 24px;
            @include jc-flex;
        }
    }
}
</style>

二、引用方法（加上验证就可以了）

<JcRange  status="ruleForm.status":successFun="onMpanelSuccess":errorFun="onMpanelError"></JcRange>

import JcRange from "@/components/common/JcRange.vue";

 status: [{ validator: checkStatus, trigger: "change" }]

var checkStatus = (rule, value, callback) => {
      console.log(value);
      if (!value) {
        return callback(new Error("请拖动滑块完成验证"));
      } else {
        callback();
      }
    };