类似 QQ 新闻的提示框要求页面每隔半小时弹出一次提示消息,下面有个不错的实现方法,感兴趣的朋友可以参考下
Javascript 是一种由 Netscape 的 LiveScript 发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言,主要目的是为了解决服务器端语言,比如 Perl,遗留的速度问题,为客户提供更流畅的浏览效果。
还是在做联通 IOM 项目时遇到的一个需求, 要求页面每隔半小时弹出一次提示消息(消息以类似 QQ 新闻的形式弹出)。当时上网找的这么一个资料,已经不记得原文出处了
- <html>
- <head>
- <title>JavaScript提示框</title>
- <script type="text/javascript">
- <!--
- /**
- * 类名:CLASS_MSN_MESSAGE
- * 功能:提供类似MSN消息框
- * 示例:
- * var MSG = new CLASS_MSN_MESSAGE("aa",200,120,"短消息提示:","您有1封消息","今天请我吃饭哈");
- * MSG.show();
- * 消息构造
- */
- function CLASS_MSN_MESSAGE(id,width,height,caption,title,message,target,action){
- this.id = id;
- this.title = title;
- this.caption = caption;
- this.message = message;
- this.target = target;
- this.action = action;
- this.width = width?width:200;
- this.height = height?height:120;
- this.timeout = 150;
- this.speed = 20;
- this.step = 1;
- this.right = screen.width -1;
- this.bottom = screen.height;
- this.left = this.right - this.width;
- this.top = this.bottom - this.height;
- this.timer = 0;
- this.pause = false;
- this.close = false;
- this.autoHide = true;
- }
- /**
- * 隐藏消息方法
- */
- CLASS_MSN_MESSAGE.prototype.hide = function(){
- if(this.onunload()){
- var offset = this.height>this.bottom-this.top?this.height:this.bottom-this.top;
- var me = this;
- if(this.timer>0){
- window.clearInterval(me.timer);
- }
- var fun = function(){
- if(me.pause==false||me.close){
- var x = me.left;
- var y = 0;
- var width = me.width;
- var height = 0;
- if(me.offset>0){
- height = me.offset;
- }
- y = me.bottom - height;
- if(y>=me.bottom){
- window.clearInterval(me.timer);
- } else {
- me.offset = me.offset - me.step;
- }
- me.Pop.show(x,y,width,height);
- }
- }
- this.timer = window.setInterval(fun,this.speed)
- }
- }
- /**
- * 消息卸载事件,可以重写
- */
- CLASS_MSN_MESSAGE.prototype.onunload = function() {
- return true;
- }
- /**
- * 消息命令事件,要实现自己的连接,请重写它
- */
- CLASS_MSN_MESSAGE.prototype.oncommand = function(){
- this.close = true;
- this.hide();
- window.open("http://www.lost63.com");
- }
- /**
- * 消息显示方法
- */
- CLASS_MSN_MESSAGE.prototype.show = function(){
- var oPopup = window.createPopup(); //IE5.5+
- this.Pop = oPopup;
- var w = this.width;
- var h = this.height;
- // "×"关闭按钮
- /*
- str += "<tr>"
- str += "<td style='font-size: 12px;color: #0f2c8c' width=30 height=24></td>"
- str += "<td style='padding-left: 4px; font-weight: normal; font-size: 12px; color: #1f336b; padding-top: 4px' valign=center width='100%'>" + this.caption + "</td>"
- str += "<td style='padding-right: 2px; padding-top: 2px' valign=center align=right width=19>"
- str += "<span title=关闭 style='font-weight: bold; font-size: 12px; cursor: hand; color: red; margin-right: 4px' id='btsysclose' >×</span></td>"
- str += "</tr>"
- */
- // 按钮style
- // style='width:60px; height:20px; border-right: #002D96 1px solid; padding-right: 2px; border-top: #002D96 1px solid; padding-left: 2px; FONT-SIZE: 12px; filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, StartColorStr=#FFFFFF, EndColorStr=#9DBCEA); border-left: #002D96 1px solid; CURSOR: hand; color: black; padding-top: 2px; border-bottom: #002D96 1px solid;'
- var str = "<div style='border-right: #455690 1px solid; border-top: #a6b4cf 1px solid; z-index: 99999; left: 0px; border-left: #a6b4cf 1px solid; width: " + w + "px; border-bottom: #455690 1px solid; position: absolute; top: 0px; height: " + h + "px; background-color: #c9d3f3'>"
- str += "<table style='border-top: #ffffff 1px solid; border-left: #ffffff 1px solid' cellspacing=0 cellpadding=0 width='100%' bgcolor=#cfdef4 border=0>"
- str += "<tr>"
- str += "<td style='font-size: 12px;color: #0f2c8c' width=30 height=24></td>"
- str += "<td style='padding-left: 4px; font-weight: normal; font-size: 12px; color: #1f336b; padding-top: 4px' valign=center width='100%'>" + this.caption + "</td>"
- str += "</tr>"
- str += "<tr>"
- /*height:设置里面内容区域的高度 */
- str += "<td style='padding-right: 1px;padding-bottom: 1px' colspan=3 height=" + (h-50) + ">"
- str += "<div style='border-right: #b9c9ef 1px solid; padding-right: 8px; border-top: #728eb8 1px solid; padding-left: 8px; font-size: 12px; padding-bottom: 8px; border-left: #728eb8 1px solid; width: 100%; color: #1f336b; padding-top: 8px; border-bottom: #b9c9ef 1px solid; height: 100%'>" + this.title + "<br><br>"
- str += "<div style='word-break: break-all' align=left><a href='javascript:void(0)' hidefocus=false id='btcommand'><font color=#ff0000>" + this.message + "</font></a> - <a href='tencent://message/?uin=380522459&site=http://hi.baidu.com/lupeng0527&menu=yes' hidefocus=false id='ommand'><font color=#ff0000>有事您q我!</font></a></div>"
- str += "</div>"
- str += "</td>"
- str += "</tr>"
- str += "<tr align=center>"
- str += "<td colspan=3>"
- str += "<div style='padding: 2 0 2 0;'>"
- str += "<span id='buttonClose'><input type='button' title=关闭 value=确认 style='width:60px; height:20px; border-right: #002D96 1px solid; padding-right: 2px; border-top: #002D96 1px solid; padding-left: 2px; FONT-SIZE: 12px; filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, StartColorStr=#FFFFFF, EndColorStr=#9DBCEA); border-left: #002D96 1px solid; CURSOR: hand; color: black; padding-top: 2px; border-bottom: #002D96 1px solid;'></span>"
- str += "</div>"
- str += "</td>"
- str += "</tr>"
- str += "</table>"
- str += "</div>"
- oPopup.document.body.innerHTML = str;
- this.offset = 0;
- var me = this;
- oPopup.document.body.onmouseover = function(){me.pause=true;}
- oPopup.document.body.onmouseout = function(){me.pause=true;}
- var fun = function(){
- var x = me.left;
- var y = 0;
- var width = me.width;
- var height = me.height;
- if(me.offset>me.height){
- height = me.height;
- } else {
- height = me.offset;
- }
- y = me.bottom - me.offset;
- if(y<=me.top){
- //me.timeout--;
- if(me.timeout==0){
- window.clearInterval(me.timer);
- if(me.autoHide){
- me.hide();
- }
- }
- } else {
- me.offset = me.offset + me.step;
- }
- me.Pop.show(x,y,width,height);
- }
- this.timer = window.setInterval(fun,this.speed)
- //"确认"关闭事件
- var buttonClose = oPopup.document.getElementById("buttonClose");
- buttonClose.onclick = function(){
- me.close = true;
- me.hide();
- }
- /*
- * "×"关闭事件
- * var btClose = oPopup.document.getElementById("btSysClose");
- *
- * btClose.onclick = function(){
- * me.close = true;
- * me.hide();
- * }
- */
- var btCommand = oPopup.document.getElementById("btCommand");
- btCommand.onclick = function(){
- me.oncommand();
- }
- var ommand = oPopup.document.getElementById("ommand");
- ommand.onclick = function(){
- this.close = true;
- me.hide();
- window.open(ommand.href);
- }
- }
- /*
- * 设置速度方法
- */
- CLASS_MSN_MESSAGE.prototype.speed = function(s){
- var t = 20;
- try {
- t = praseInt(s);
- } catch(e){}
- this.speed = t;
- }
- /**
- * 设置步长方法
- */
- CLASS_MSN_MESSAGE.prototype.step = function(s){
- var t = 1;
- try {
- t = praseInt(s);
- } catch(e){}
- this.step = t;
- }
- CLASS_MSN_MESSAGE.prototype.rect = function(left,right,top,bottom){
- try {
- this.left = left !=null?left:this.right-this.width;
- this.right = right !=null?right:this.left +this.width;
- this.bottom = bottom!=null?(bottom>screen.height?screen.height:bottom):screen.height;
- this.top = top !=null?top:this.bottom - this.height;
- } catch(e){}
- }
- var MSG1 = new CLASS_MSN_MESSAGE("aa",240,150,"管理员:","思路决定出路","迷失路上");
- MSG1.rect(null,null,null,screen.height-50);
- MSG1.speed = 10;
- MSG1.step = 5;
- //alert(MSG1.top);
- //MSG1.show();
- //同时两个有闪烁,只能用层代替了,不过层不跨框架
- /*
- var MSG2 = new CLASS_MSN_MESSAGE("aa",200,120,"短消息提示:","您有2封消息","好的啊");
- MSG2.rect(100,null,null,screen.height);
- MSG2.show();
- */
- /**
- * 显示提示框
- */
- function showMSG(){
- MSG1.show();
- }
- </script>
- </head>
- <body>
- <center>
- <bgsound src="" id="bs" loop="no">
- <input type="button" value="按钮" onclick="showMSG(); ">
- <br>
- <hr>
- </center>
- </body>
- </html>
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