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DOM case sharing—jQ realizes the effect of clicking anywhere to close a certain place

php是最好的语言

Aug 02, 2018 am 10:07 AM

dom

Practical combat of DOM in Javascript learning, jQ realizes the effect of clicking anywhere to close a certain place (often used in the mask layer behind the modal box)

Click anywhere Closing a certain place

and clicking the corresponding place will not hide yourself

Principle

//点击文档任意处都触发该事件$(document).mousedown(function(e){
    //只有当某对象存在时才会有的点击任意处出现的事件效果
    if($(e.target).parents(".search").length==0){
        $("xxx").slideToggle(300);//显示隐藏
    }
})

I took out some of the following web pages in practice, so the final style may be different.
The idea is

//点击文档任意处都触发该事件$(document).mousedown(function(e){
    if(想要显示的对象如果是在显示状态时才有以下的触发效果){        //只有当某对象存在时才会有的点击任意处出现的事件效果
        if($(e.target).parents(".search").length==0){
            $("xxx").slideToggle(300);//显示隐藏
        }
    }
})

Effect

DOM case sharing—jQ realizes the effect of clicking anywhere to close a certain place

Code

html part

<!DOCTYPE html><html lang="en"><head>
    <meta charset="UTF-8">
    <title>backspacing</title>
    <style type="text/css">
        html{            background: #666;        }
        .topList{            float: right;            margin-right: 36px;            list-style: none;        }
        .topList li{            float: left;            height: 35px;            line-height: 35px;            text-align: center;        }
        .topList a{            color: #fff;        }
        .topList a:active,        .topList a:focus,        .topList a:hover{            color: #fff;            text-decoration: none;        }
        .searchBtn{            position: absolute;            right: 0;            top: 3px;            width: 35px;            height: 35px;        }
        .searchBtn img{            position: absolute;            right: 0px;            top: 7px;            width: 16px;            height: 16px;            display: block;        }
        .search{            display: none;            position: absolute;            right: 0;            top: 0;            width: 190px;            height: 35px;        }
        .search input{            position: absolute;            right: 0px;            top: 0px;            width: 100%;            height: 31px;            border:0;            border-bottom: 1px solid #fff;            background: #89C997;            color: #fff !important;            padding-right:30px;        }
        .search input::-webkit-input-placeholder{            color: #fff;        }
        .search input::-moz-placeholder{            color: #fff;        }
        .search input::-ms-input-placeholder{            color: #fff;        }
        .search input::-moz-placeholder{            color: #fff;        }
        .search a{            position: absolute;            right: 0px;            top: 7px;            width: 16px;            height: 16px;            border-radius: 25px;        }
        .search img{            width: 16px;            height: 16px;        }
    </style></head><body><ul class="topList">
    <li><a href="javascript:alert(&#39;敬请期待&#39;)!">理工首页&ensp;|&ensp;</a></li>
    <li><a href="javascript:alert(&#39;敬请期待&#39;)!">收藏本页&ensp;|&ensp;</a></li>
    <li><a href="javascript:alert(&#39;敬请期待&#39;)!">English</a></li></ul><a href="javascript:alert(&#39;敬请期待&#39;)!" class="searchBtn"><img src="/static/imghwm/default1.png"  data-src="search.png"  class="lazy"   alt=""></a><p class="search">
    <form action="">
        <input type="text" placeholder="请输入相关搜索内容">
        <a href="javascript:alert(&#39;敬请期待&#39;)!"><img src="/static/imghwm/default1.png"  data-src="search.png"  class="lazy"   alt=""></a>
    </form></p>
    <script src="../jquery.min.js"></script>
    <script src="backspacing.js"></script></body></html>

js part

// 搜索框的出现&&隐藏$(".searchBtn").click(function(){
    $(".searchBtn").slideToggle(300);
    $(".search").slideToggle(300);
    $(".topList").slideToggle(100);
});
$(document).mousedown(function(e){
    if(!($(".search").is(":hidden"))){        if($(e.target).parents(".search").length==0){
            $(".searchBtn").slideToggle(300);
            $(".search").slideToggle(300);
            $(".topList").slideToggle(100);
        }
    }else{        return false;
    }
})

jQuery realizes the effect of closing the pop-up layer outside the pop-up layer by clicking anywhere

JavaScript click on the web page Implementation code for opening new windows and closing windows at any location

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