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chat.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="format-detection" content="telephone=no"/>
<meta name="format-detection" content="email=no"/>
<meta content="width=device-width, initial-scale=1.0, maximum-scale=2.0, minimum-scale=1.0, user-scalable=0" name="viewport">
<meta http-equiv="cache-control" content="public">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<title>Miko的随机聊天室 QQ452753617</title>
<link rel="stylesheet" type="text/css" href="css/style.css" />
<!--[if lt IE 8]><script src="./json3.min.js"></script><![endif]-->
<script src="js/socket.io.js"></script>
<script type="text/javascript" src="js/jquery.2.1.4.min.js" ></script>
<script type="text/javascript" src="js/jquery.qqFace.js"></script>
</head>
<body>
<div class="page">
<div class="online">
<div class="long" id="screen" style="left:-0%">
<div class="login">
<div class="getmsg">
<p>请输入你的姓名：</p>
<input type="text" id="name" value="" >
<a href="javascript:;" id="login">确定</a>
</div>
</div>
<div class="user">
<h3>随机私聊(<span id="count">0</span>人在线)</h3>
<p id="ul" class="ab-center">
</p>
</div>
<div class="chat">
<a href="javascript:;" class="back">返回</a>
<h3 id="nickname">与战三聊天中...</h3>
<div class="content clearfix" id="content">
</div>
<div class="text">
<textarea id="msg" name="msg" ></textarea>
<span class="emotion" id="emotion"></span>
<span class="emotion img" id="img"></span>
<a href="javascript:;" class="send" id="send">发送</a>
</div>
<div class="pop" id="previewBox">
<img src="" id="preview">
<a href="javascript:;" class="send" id="sendImg" >发送</a>
</div>
<div class="pop" id="scan">
<img src="" class="ab-center" id="check">
</div>
</div>
</div>
</div>
</div>
<input type="file" accept="image/*;capture=camera" id="photo">
<script type="text/javascript">
$(document).ready(function(){
var h = window.innerHeight
var c_h = h - $("#nickname").height() - $(".text").height() - 40
$("#content").css("height", c_h +"px")
})
var $login = $("#login"),$name = $("#name"),socket,host = location.host,
$screen = $("#screen"),$userList = $("#userList"),to,$content = $("#content"),$msg = $("#msg");
$login.click(function(){
var name = $name.val();
window.id = new Date().getTime()+""+Math.floor(Math.random()*899+100);
if(!name){
alert("请输入用户名!")
return false
}
$screen.animate({"left": "-100%"},800)
socket = io.connect('ws://'+host);
socket.emit('newUser',{ user_name : name, user_id : id})
socket.on('onlineCount',function(data){
var len = data.length
if(len > 1){
$("#ul").html("匹配中，请稍后...")
socket.on('getChat',function(data,nameList){ //如果广播到用户包含自己，则匹配聊天
if(data.p1 == id){
to = data.p2
}else if(data.p2 == id){
to = data.p1
}
var name = nameList[to]
if(to){
$screen.animate({"left": "-200%"},800)
$("#nickname").text("与"+name+"聊天中...")
$("#ul").css("display","none")
}
})
}else{
$("#ul").html("当前服务器只有您一位空闲用户，请等待其他用户加入<br><br><p style='text-align:center'>来自：QQ452753617</p>")
}
})
socket.on('addCount',function(data){ //在线用户增加
$("#count").text(data)
})
socket.on('getMsg',function(data){ // 接收消息
var html = '<div class="clearfix"><p class="chat-box-l">'+replace_em(data.msg)+'</p></div>'
$content.append(html)
toBottom()
})
socket.on('getImg',function(data){ // 接收图片
var html = '<div class="clearfix"><p class="chat-box-l"><img class="check" src="'+replace_em(data.msg)+'"/></p></div>'
$content.append(html)
toBottom()
})
socket.on('offline',function(data){ // 对方下线提示
if(to == data.id){
alert("对方用户已退出聊天，刷新或关闭页面将删除所有聊天内容！")
$("#nickname").text("对方已经退出，刷新页面重新匹配")
$msg.attr("disabled","disabled")
}
})
socket.on('err',function(data){ // 对面下线后继续发送信息，将报错提示
alert(data.msg)
})
})
$("#send").click(function(){
sendMsg("msg");
})
$msg.keydown(function(e) { //绑定回车键
if (e.keyCode === 13) {
e.preventDefault();
sendMsg("msg");
}
});
$(".back").on('click',function(){ // 返回后刷新页面，解放socket
$screen.animate({"left": 0},800,function(){
location.reload()
})
})
function replace_em(str){ // 匹配表情字符
str = str.replace(/\</g,'<');
str = str.replace(/\>/g,'>');
str = str.replace(/\n/g,'<br/>');
str = str.replace(/\[em_([0-9]*)\]/g,'<img src="images/face/$1.gif" border="0" />');
return str;
}
$('#emotion').qqFace({ //表情转换
id : 'facebox', //表情盒子的ID
assign:'msg', //给那个控件赋值
path:'images/face/' //表情存放的路径
});
$msg.blur(function(){
$("#facebox").css("display","none");
})
$("#img").click(function(){ //模拟file控件点击
$("#photo").click()
})
$("#photo").change(function(){ // 选中图片后出现弹窗
var reader = new FileReader();
reader.onload = function(e) {
$("#preview").attr("src",this.result)
$("#previewBox").css("display","block")
}
reader.readAsDataURL(this.files[0])
})
$("#sendImg").click(function(){
var img = $("#preview").attr("src")
socket.emit('sendImg',{msg:img,to:to})
$("#previewBox").css("display","none")
sendMsg("img")
})
$("body").delegate('.check','click',function(){
var img = $(this).attr("src");
$("#check").attr("src",img)
$("#scan").css("display","block").click(function(){
$(this).css("display","none")
})
})
$content.click(function(){
$msg.blur()
})
function toBottom(){ // 接收新消息时，聊天框自动滚到最下方
var top = $content[0].scrollHeight
$content.scrollTop(top)
}
function sendMsg(type){ // 发送消息函数
if(type == "msg"){
var msg = $("#msg").val()
if($.trim(msg) == ""){ //不能发送空值
$("#msg").val("")
return false
}
socket.emit('message',{msg:msg,to:to})
var html = '<div class="clearfix"><p class="chat-box-r">'+replace_em(msg)+'</p></div>'
$content.append(html)
$("#msg").val("").blur() // 发送信息后置空，失焦
}else{
var msg = $("#preview").attr("src")
var html = '<div class="clearfix"><p class="chat-box-r"><img class="check" src="'+replace_em(msg)+'"/></p></div>'
$content.append(html)
}
toBottom()
}
</script>
</body>
</html>