原生js封装简单模态框

最新推荐文章于 2023-04-10 15:56:48 发布
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最新推荐文章于 2023-04-10 15:56:48 发布
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CC 4.0 BY-SA版权
分类专栏： javascript 文章标签： confirm
本文链接：https://blog.youkuaiyun.com/weixin_39685861/article/details/80243283
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<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        *{font-weight: normal;font-style: normal;}
        .mask-layer{
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            right: 0;
            background:rgba(0,0,0,.6);
        }

        .model-icon{
            width: 100px;
            transform: translate(-50%,-50%);
            /* margin-top: -10px; */
            position: absolute;
            top: 0px;
            left: 50%;
        }
        .model-blank{
            height: 24px;
        }
        .model-container{
            width: 400px;
            min-height: 200px;
            background: #fff;
            border-radius: 10px;
            box-shadow: 0px 0px 4px 2px #f1f8ff;
            text-align: center;
            font-size: 18px;
            color: #333;
            padding: 10px 24px;
            box-sizing: border-box;
            position: absolute;
            top: 50%;
            left:50%;
            -webkit-transform: translate(-50%,-50%);
            -moz-transform: translate(-50%,-50%);
            -ms-transform: translate(-50%,-50%);
            -o-transform: translate(-50%,-50%);
            transform: translate(-50%,-50%);
        }
        .model-container .model-title{ font-size: 24px;}
        .model-container .controls{
            /*position: absolute;*/
            /*bottom: 19px;*/
            width: 100%;
            margin: 20px 0;
        }
        .model-container a{
            display: inline-block;
            width: 49%;
            text-align: center;
            cursor: pointer;
            background: royalblue;
            height: 36px;
            line-height: 36px;
            border-radius: 5px;
            color: #fff;
        }
        .model-container .confirm{

        }
    </style>
</head>
<body>
<button id="btn">开启模态框</button>
<script>
  var ModelBox=(function(){
    var ModelBox=function(option){
      this.option=option||{};
      this.init();
    };
    ModelBox.prototype={
      isShow:false,
      init:function(){
        var _this=this;
        _this.isShow=this.option.isShow;
        var html =
          '<div class="model-container">'
          +(_this.option.iconSrc?'<img  class="model-icon"/>':'')
          +(_this.option.iconSrc?'<div  class="model-blank"></div>':'')
          +'<h1 class="model-title">title</h1>'
          +'<div class="model-content"></div>'
          +'<div class="controls">'
          +'<a class="confirm model-confirm">确定</a>'
          +'<a class="cancel model-cancel">取消</a>'
          +'</div>'
          +'</div>';
        var ModelBoxCon=document.createElement("div");
        ModelBoxCon.setAttribute("class","mask-layer");
        ModelBoxCon.innerHTML=html;
        ModelBoxCon.querySelector(".model-title").innerHTML=_this.option.title;
        ModelBoxCon.querySelector(".model-content").innerHTML=_this.option.content;
        ModelBoxCon.querySelector(".model-confirm").innerHTML=_this.option.confirm;
        ModelBoxCon.querySelector(".model-cancel").innerHTML=_this.option.cancel;
        _this.option.iconSrc && (ModelBoxCon.querySelector(".model-icon").setAttribute("src",_this.option.iconSrc));
        !_this.option.isShowConfirm && (ModelBoxCon.querySelector(".model-confirm").style.display = 'none');
        document.getElementsByTagName("body")[0].appendChild(ModelBoxCon);
        if(!_this.isShow){
          ModelBoxCon.style.display="none";
        }
        ModelBoxCon.querySelector(".cancel").onclick=ModelBoxCon.querySelector(".confirm").onclick=_this.eventsFn.bind("",this,ModelBoxCon);


      },
      show:function(){
        document.querySelector(".mask-layer").style.display="block";
        this.isShow=true;
      },
      hide:function(){
        document.querySelector(".mask-layer").style.display="none";
        this.isShow=false;
      },
      eventsFn:function(e,doc,target){
        var _thisEvent=target.target;
        if(_thisEvent.classList.contains("confirm")){
          e.option.confirmCallBack();
        }
        doc.style.display="none";
        e.isShow=false;
        return false;
      }

    }||{};
    return ModelBox;
  })();
</script>
<script>
  var opt=new ModelBox({
    title:"提示框",//标题
    content:"这是一个弹出框这是一个弹出框这是一个弹出框这是一个弹出框",//内容
    confirm:"确认",//确认文字
    cancel:"关闭",//关闭按钮文字
    isShow:false,//初始状态
    isShowConfirm:false,//是否显示确认按钮
    iconSrc:'https://www.hecoos.com/Statics/Message/success.png',//头部图标 为空不显示
    confirmCallBack:(function(){//确认回调
      alert("操作成功");
    })

  });
  document.querySelector("#btn").onclick=function(){
    !opt.isShow?opt.show():opt.hide();
  }
</script>
</body>
</html>