有人可以看一下代码吗，这里是问题截图 enter image description here
当单击侧边栏用户时，单击弹出标题后会出现一个弹出窗口，它将向下显示，然后如果有人从侧边栏单击同一用户，则会创建一个重复实例，单击头部将使第一个出现，第二个出现一个下来。
当有人再次单击侧边栏用户时，我想停止重复，然后已经生成的弹出窗口将切换。 https://jsfiddle.net/hamzasgd/Lqyajokp/4/
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Facebook like chat popup layout</title>
</head>
<body>
<div id="chat-sidebar">
<div id="sidebar-user-box" class="100">
<img src="user.png" />
<span id="slider-username">User 1</span>
</div>
<div id="sidebar-user-box" class="200">
<img src="user.png" />
<span id="slider-username">User 2</span>
</div>
</div>
</body>
</html>
$(document).ready(function(){
var arr = []; // List of users
$(document).on('click', '.msg_head', function() {
var chatbox = $(this).parents().attr("rel") ;
$('[rel="'+chatbox+'"] .msg_wrap').slideToggle('slow');
return false;
});
$(document).on('click', '.close', function() {
var chatbox = $(this).parents().parents().attr("rel") ;
$('[rel="'+chatbox+'"]').hide();
arr.splice($.inArray(chatbox, arr), 1);
displayChatBox();
return false;
});
$(document).on('click', '#sidebar-user-box', function() {
var userID = $(this).attr("class");
var username = $(this).children().text() ;
if ($.inArray(userID, arr) != -1)
{
arr.splice($.inArray(userID, arr), 1);
}
arr.unshift(userID);
chatPopup = '<div class="msg_box" style="right:270px" rel="'+ userID+'">'+
'<div class="msg_head">'+username +
'<div class="close">x</div> </div>'+
'<div class="msg_wrap"> <div class="msg_body"> <div class="msg_push"></div> </div>'+
'<div class="msg_footer"><textarea class="msg_input" rows="4"></textarea></div> </div> </div>' ;
$("body").append( chatPopup );
displayChatBox();
});
$(document).on('keypress', 'textarea' , function(e) {
if (e.keyCode == 13 ) {
var msg = $(this).val();
$(this).val('');
if(msg.trim().length != 0){
var chatbox = $(this).parents().parents().parents().attr("rel") ;
$('<div class="msg-right">'+msg+'</div>').insertBefore('[rel="'+chatbox+'"] .msg_push');
$('.msg_body').scrollTop($('.msg_body')[0].scrollHeight);
}
}
});
function displayChatBox(){
i = 270 ; // start position
j = 260; //next position
$.each( arr, function( index, value ) {
if(index < 4){
$('[rel="'+value+'"]').css("right",i);
$('[rel="'+value+'"]').show();
i = i+j;
}
else{
$('[rel="'+value+'"]').hide();
}
});
}
});
最佳答案
我添加了一项检查，用于检查您是否已拥有具有该用户 ID 的聊天框:
var exist = $('.msg_box[rel="' + userID + '"]').length;
if (exist == 0) {
arr.unshift(userID);
chatPopup = '<div class="msg_box" style="right:270px" rel="' + userID + '">' +
'<div class="msg_head">' + username +
'<div class="close">x</div> </div>' +
'<div class="msg_wrap"> <div class="msg_body"> <div class="msg_push"></div> </div>' +
'<div class="msg_footer"><textarea class="msg_input" rows="4"></textarea></div> </div> </div>';
$("body").append(chatPopup);
displayChatBox();
}
请注意，您有一些无效的 html。不允许您在多个元素上拥有 id。
演示
$(document).ready(function() {
var arr = []; // List of users
$(document).on('click', '.msg_head', function() {
var chatbox = $(this).parents().attr("rel");
$('[rel="' + chatbox + '"] .msg_wrap').slideToggle('slow');
return false;
});
$(document).on('click', '.close', function() {
var chatbox = $(this).parents().parents().attr("rel");
$('[rel="' + chatbox + '"]').hide();
arr.splice($.inArray(chatbox, arr), 1);
displayChatBox();
return false;
});
$(document).on('click', '#sidebar-user-box', function() {
var userID = $(this).attr("class");
var username = $(this).children().text();
if ($.inArray(userID, arr) != -1) {
arr.splice($.inArray(userID, arr), 1);
}
var exist = $('.msg_box[rel="' + userID + '"]').length;
if (exist == 0) {
arr.unshift(userID);
chatPopup = '<div class="msg_box" style="right:270px" rel="' + userID + '">' +
'<div class="msg_head">' + username +
'<div class="close">x</div> </div>' +
'<div class="msg_wrap"> <div class="msg_body"> <div class="msg_push"></div> </div>' +
'<div class="msg_footer"><textarea class="msg_input" rows="4"></textarea></div> </div> </div>';
$("body").append(chatPopup);
displayChatBox();
} else {
$('.msg_box[rel="' + userID + '"] .msg_wrap').slideToggle('slow');
}
});
$(document).on('keypress', 'textarea', function(e) {
if (e.keyCode == 13) {
var msg = $(this).val();
$(this).val('');
if (msg.trim().length != 0) {
var chatbox = $(this).parents().parents().parents().attr("rel");
$('<div class="msg-right">' + msg + '</div>').insertBefore('[rel="' + chatbox + '"] .msg_push');
$('.msg_body').scrollTop($('.msg_body')[0].scrollHeight);
}
}
});
function displayChatBox() {
i = 270; // start position
j = 260; //next position
$.each(arr, function(index, value) {
if (index < 4) {
$('[rel="' + value + '"]').css("right", i);
$('[rel="' + value + '"]').show();
i = i + j;
} else {
$('[rel="' + value + '"]').hide();
}
});
}
});/**** Chat Popup Layout******/
body {
background: #e5e5e5;
font-family: sans-serif;
}
.msg_box {
position: fixed;
bottom: -5px;
width: 250px;
background: white;
border-radius: 5px 5px 0px 0px;
}
.msg_head {
background: black;
color: white;
padding: 8px;
font-weight: bold;
cursor: pointer;
border-radius: 5px 5px 0px 0px;
}
.msg_body {
background: white;
height: 200px;
font-size: 12px;
padding: 15px;
overflow: auto;
overflow-x: hidden;
}
.msg_input {
width: 100%;
height: 55px;
border: 1px solid white;
border-top: 1px solid #DDDDDD;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.close {
float: right;
cursor: pointer;
}
.minimize {
float: right;
cursor: pointer;
padding-right: 5px;
}
.msg-left {
position: relative;
background: #e2e2e2;
padding: 5px;
min-height: 10px;
margin-bottom: 5px;
margin-right: 10px;
border-radius: 5px;
word-break: break-all;
}
.msg-right {
background: #d4e7fa;
padding: 5px;
min-height: 15px;
margin-bottom: 5px;
position: relative;
margin-left: 10px;
border-radius: 5px;
word-break: break-all;
}
/**** Slider Layout Popup *********/
#chat-sidebar {
width: 250px;
position: fixed;
height: 100%;
right: 0px;
top: 0px;
padding-top: 10px;
padding-bottom: 10px;
border: 1px solid #b2b2b2;
}
#sidebar-user-box {
padding: 4px;
margin-bottom: 4px;
font-size: 15px;
font-family: Calibri;
font-weight: bold;
cursor: pointer;
}
#sidebar-user-box:hover {
background-color: #999999;
}
#sidebar-user-box:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}
img {
width: 35px;
height: 35px;
border-radius: 50%;
float: left;
}
#slider-username {
float: left;
line-height: 30px;
margin-left: 5px;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="chat-sidebar">
<div id="sidebar-user-box" class="100">
<img src="user.png" />
<span id="slider-username">User 1</span>
</div>
<div id="sidebar-user-box" class="200">
<img src="user.png" />
<span id="slider-username">User 2</span>
</div>
</div>关于javascript - jquery弹出窗口实例重复问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/58212950/