JavaScript實現彈出式可拖動登入框
阿新 • • 發佈:2022-01-07
本文例項為大家分享了實現彈出式可拖動登入框的具體程式碼,供大家參考,具體內容如下
效果圖展示:
總體來說實現起來比較簡單,老規矩,先搭建html框架,程式碼如下:
<div class="login-header"><a id="link" href="script:;" rel="external nofollow" >點選,彈出登入框</a></div> <div id="login" class="login"> <div id="title" class="login-title">登入會員 <span><a id="closeBtn" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" class="close-login">關閉</a></span> </div> <div class="login-input-content"> <div class="login-input"> <label>使用者名稱:</label> <input type="text" placeholder="請輸入使用者名稱" name="info[username]" id="username" class="list-input"> </div> <div class="login-input"> <label>登入密碼:</label>www.cppcns.com; <input type="password" placeholder="請輸入登入密碼" name="info[password]" id="password" class="list-input"> </div> </div> <div id="loginBtn" class="login-button"><a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" id="login-button-submit">登入會員</a></div> </div> <!-- 遮蓋層 --> <div id="bg" class="login-bg"></div>
程式碼:
<style> .login-header { width: 100%; text-align: center; height: 30px; font-size: 24px; line-height: 30px; } *{ padding: 0px; margin: 0px; } .login { display: none; width: 512px; height: 280px; position: fixed; http://www.cppcns.comborder: #ebebeb solid 1px; left: 50%; top: 50%; background: #ffffff; box-shadow: 0px 0px 20px #ddd; z-index: 9999; transform: translate(-50%,-50%); } .login-title { width: 100%; margin: 10px 0px 0px 0px; text-align: center; line-height: 40px; height: 40px; font-size: 18px; position: relative; cursor: move; } .login-input-content { margin-top: 20px; } .login-button { width: 50%; margin: 30px auto 0px auto; line-height: 40px; font-size: 14px; border: #ebebeb 1px solid; text-align: center; } .login-bg { display: none; width: 100%; height: 100%; position: fixed; top: 0px; left: 0px; background: rgba(0,.3); } a { text-decoration: none; color: #000000; } .login-button a { display: block; xlGpkMYksW } .login-input input.list-input { float: left; line-height: 35px; height: 35px; width: 350px; border: #ebebeb 1px solid; text-indent: 5px; } .login-input { overflow: hidden; margin: 0px 0px 20px 0px; } .login-input label { float: left; width: 90px; padding-right: 10px; text-align: right; line-height: 35px; height: xlGpkMYksW35px; font-size: 14px; } .login-title span { position: absolute; font-size: 12px; right: -20px; top: -30px; background: #ffffff; border: #ebebeb solid 1px; width: 40px; height: 40px; border-radius: 20px; } </style>
有沒有覺得CSS才是最複雜難搞的
最後是程式碼:這裡我們只讓盒子的title部分能拖動,也就是登入框頭部部分
<script> //獲取元素 var login = document.querySelector('.login'); var mask = document.querySelector('.login-bg'); var link = document.querySelector('#link'); var closeBtn = document.querySelector('#closeBtn'); var title = document.querySelector('#title'); //建立點選事件,點選link後,登入框顯示 link.addEventListener('click',function() { mask.style.display = 'block'; login.style.display = 'block'; }) //關閉後,登入框隱藏 closeBtn.addEventListener('click',function() { mask.style.display = 'none'; login.style.display = 'none'; }) //滑鼠按下,獲取登入框位置 title.addEventListener('mousedown',function(e) { var x = e.pageX - login.offsetLeft; var y = e.pageY - login.offsetTop; //滑鼠移動,觸發移動事件 document.addEventListener('mousemove',move) function move(e) { login.style.left = e.pageX - x + 'px'; login.style.top = e.pageY - y + 'px'; } //滑鼠抬起,銷燬滑鼠移動事件 document.addEventListener('mouseup',function() { document.removeEventListener('mousemove',move); }) }) </scrip>
這樣就實現了簡單的彈出式可移動登入框。快上手練練吧
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。