实现浏览器-右下角-小广告功能(您有新的消息)

时间:2022-10-09 14:49:28

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <title> New Document </title>
  <meta name="Generator" content="EditPlus">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">

  <style type="text/css">
    #msg_win{position:absolute;right:0px;display:none;overflow:hidden;z-index:99;border:1px solid blue;background:#DDF1FA;width:240px;font-size:12px;margin:0px;}
    #msg_win .icos{position:absolute;top:2px;*top:0px;right:2px;z-index:9;}
    .icos a{float:left;color:#FFFFFF;margin:1px;text-align:center;font-weight:bold;width:14px;height:22px;line-height:22px;padding:1px;text-decoration:none;font-family:webdings;}
    .icos a:hover{color:#FFCC00;}
    #msg_title{background-color:blue;background-image:url(${pageContext.request.contextPath}/images/tbg.gif);border-bottom:1px solid #710B97;border-top:1px solid #FFF;border-left:1px solid #FFF;color:#FFFFFF;height:25px;line-height:25px;text-indent:5px;font-weight:bold;}
    #msg_content{margin:5px;margin-right:0;width:230px;height:126px;overflow:hidden;}
    </style>


</head>

</head>

<body>



<div id="msg_win" style="display:block;top:503px;visibility:visible;opacity:1;">
    <div class="icos"><a id="msg_min" title="最小化" href="javascript:void 0">_</a><a id="msg_close" title="关闭" href="javascript:void 0">×</a></div>
    <div id="msg_title">您有新的消息:</div>
    <div id="msg_content">
    <div colspan="2" style="color:red;">
     哈哈哈
    </div>
    <br/>
    <div>
     呵呵呵呵呵呵呵
    </div>
</div>
  </div>

<script language="javascript">
    var Message={
    set: function() {//最小化与恢复状态切换
    var set=this.minbtn.status == 1?[0,1,'block',this.char[0],'最小化']:[1,0,'none',this.char[1],'恢复'];
    this.minbtn.status=set[0];
    this.win.style.borderBottomWidth=set[1];
    this.content.style.display =set[2];
    this.minbtn.innerHTML =set[3]
    this.minbtn.title = set[4];
    this.win.style.top = this.getY().top;
    },
    close: function() {//关闭
    this.win.style.display = 'none';
    window.onscroll = null;
    },
    setOpacity: function(x) {//设置透明度
    var v = x >= 100 ? '': 'Alpha(opacity=' + x + ')';
    this.win.style.visibility = x<=0?'hidden':'visible';//IE有绝对或相对定位内容不随父透明度变化的bug
    this.win.style.filter = v;
    this.win.style.opacity = x / 100;
    },
    show: function() {//渐显
    clearInterval(this.timer2);
    var me = this,fx = this.fx(0, 100, 0.1),t = 0;
    this.timer2 = setInterval(function() {
    t = fx();
    me.setOpacity(t[0]);
    if (t[1] == 0) {clearInterval(me.timer2) }
    },6);//10 to 6
    },
    fx: function(a, b, c) {//缓冲计算
    var cMath = Math[(a - b) > 0 ? "floor": "ceil"],c = c || 0.1;
    return function() {return [a += cMath((b - a) * c), a - b]}
    },
    getY: function() {//计算移动坐标
    var d = document,b = document.body, e = document.documentElement;
    var s = Math.max(b.scrollTop, e.scrollTop);
    var h = /BackCompat/i.test(document.compatMode)?b.clientHeight:e.clientHeight;
    var h2 = this.win.offsetHeight;
    return {foot: s + h + h2 + 2+'px',top: s + h - h2 - 2+'px'}
    },
    moveTo: function(y) {//移动动画
    clearInterval(this.timer);
    var me = this,a = parseInt(this.win.style.top)||0;
    var fx = this.fx(a, parseInt(y));
    var t = 0 ;
    this.timer = setInterval(function() {
    t = fx();
    me.win.style.top = t[0]+'px';
    if (t[1] == 0) {
    clearInterval(me.timer);
    me.bind();
    }
    },6);//10 to 6
    },
    bind:function (){//绑定窗口滚动条与大小变化事件
    var me=this,st,rt;
    window.onscroll = function() {
    clearTimeout(st);
    clearTimeout(me.timer2);
    me.setOpacity(0);
    st = setTimeout(function() {
    me.win.style.top = me.getY().top;
    me.show();
    },100);//600 mod 100
    };
    window.onresize = function (){
    clearTimeout(rt);
    rt = setTimeout(function() {me.win.style.top = me.getY().top},100);
    }
    },
    init: function() {//创建HTML
    function $(id) {return document.getElementById(id)};
    this.win=$('msg_win');
    var set={minbtn: 'msg_min',closebtn: 'msg_close',title: 'msg_title',content: 'msg_content'};
    for (var Id in set) {this[Id] = $(set[Id])};
    var me = this;
    this.minbtn.onclick = function() {me.set();this.blur()};
    this.closebtn.onclick = function() {me.close()};
    this.char=navigator.userAgent.toLowerCase().indexOf('firefox')+1?['_','::','×']:['0','2','r'];//FF不支持webdings字体
    this.minbtn.innerHTML=this.char[0];
    this.closebtn.innerHTML=this.char[2];
    setTimeout(function() {//初始化最先位置
    me.win.style.display = 'block';
    me.win.style.top = me.getY().foot;
    me.moveTo(me.getY().top);
    },0);
    return this;
    }
    };
    Message.init();
    </script>
</body>
</html>