<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>
<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: "拖动滑块到最右边"
    },
    //失败之后的函数
    // errorFun: {
    //   type: Function
    // },
    //或者用值来进行监听
    status: {
      type: String
    }
  },
  name: "Silder",
  data() {
    return {
        rangeStatus:'',
        
    };
  },
  methods: {
    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)';
					this.rangeStatus = false;
					//执行失败的函数

					 this.$emit('errorFun')
					// this.errorFun && this.errorFun();
				}else{
					this.rangeStatus = true;
					if(this.status){
						this.$parent[this.status] = true;
					}
					//执行成功的函数
					this.$emit('successFun')
					// this.successFun && this.successFun();
				}
				document.onmousemove = null;
				document.onmouseup = null;
			}
		}
  
  }
};
</script>
<style scoped>
    .jc-range{
	background-color: #CCC;
	position: relative;
	transition: 1s all;
	user-select: none;
	color: #333;
	display: flex;
	justify-content: center;
	align-items: center;
	height: 45px; /*no*/
}
.jc-range i{
	position: absolute;
	left: 0;
	width: 60px;/*no*/
	height: 100%;
	color: #919191;
	background-color: #fff;
	border: 1px solid #bbb;
	cursor: pointer;
	display: flex;
	justify-content: center;
	align-items: center;
}
.jc-range.success{
	background-color: #7AC23C;
	color: #fff;
}
.jc-range.success i{
	color: #7AC23C;
}
</style>