JS_MediaPlayer类
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>MediaPlayer示例</title>
<style type="text/css">
body
{
font-size:12px;
font-family:宋体;
}
#divMpl
{
height: 137px;
width: 277px;
}
#divMsg
{
height: 155px;
overflow:auto;
width: 376px;
}
</style>
<script language="javascript" type="text/javascript">
/* MediaPlayer类定义 冰点原创 */
function MediaPlayer()
{
this.dom=null;
}
MediaPlayer.uiMode=
{
Full:"full",
Mini:"mini",
None:"none",
Invisible:"invisible"
}
MediaPlayer.prototype={
CreateAt:function(id) //在指定ID的标签中创建MediaPlayer控件，大小由该标签决定
{
this.dom=document.createElement("object");
this.dom.classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6";
this.dom.style.width="100%";
this.dom.style.height="100%";
var container=document.getElementById(id);
container.innerHTML="";
container.appendChild(this.dom);
this._Init();
},
BindID:function(id) //绑定一个已存在的Object标签，该标签应该为一个MediaPlayer控件
{
this.dom=document.getElementById(id);
this._Init();
},
_Init:function() //初始化，注册事件
{
var _this=this;
this.dom.attachEvent("PlayStateChange",
function(newState){_this.onPlayStateChange(newState)});
this.dom.attachEvent("Buffering",function(bStart){ _this.onBuffering(bStart) });
this.dom.attachEvent("Error",function(){ _this.onError(); });
this.dom.attachEvent("PositionChange",
function(oldPos,newPos){ _this.onPositionChange(oldPos,newPos); } );
this.dom.attachEvent("StatusChange",function(){ _this.onStatusChange(); })
},
onPlayStateChange:function(newState)
{
switch(newState)
{
case 1: //wmppsStopped
this.onStop();
break;
case 2: //wmppsPaused
this.onPaused();
break;
case 3: //wmppsPlaying
this.onPlay();
break;
case 4: //wmppsScanForward
break;
case 5: //wmppsScanReverse
break;
case 6: //wmppsBuffering
this.onBuffering_SC();
break;
case 7: //wmppsWaiting
break;
case 8: //wmppsMediaEnded
this.onMediaEnded();
break;
case 9: //wmppsTransitioning
this.onTransitioning();
break;
case 10: //wmppsReady
break;
case 11: //wmppsReconnecting
break;
case 12: //wmppsLast
break;
case 0: //wmppsUndefined
break;
default:
break;
}
},
// 事件列表
onStop:function(){},
onPaused:function(){},
onPlay:function(){},
onBuffering_SC:function(){},
onTransitioning:function(){},
onMediaEnded:function(){},
onError:function(){},
onPositionChange:function(oldPos,newPos){},
onStatusChange:function(){},
onBuffering:function(bStart){},
// 设置 暂时只做两个
setMode:function(mode){ this.dom.uiMode=mode; },
setValume:function(v){ this.dom.settings.volume=v; },
// 各种属性
getMediaName:function()
{
var media=this.dom.currentMedia;
if(media)
{
return media.name;
}
return "";
},
getMediaDuration:function()
{
var media=this.dom.currentMedia;
if(media)
{
return media.duration;
}
return "";
},
getMediaDurationString:function()
{
var media=this.dom.currentMedia;
if(media)
{
return media.durationString;
}
return "";
},
getStatus:function(){ return this.dom.status; },
getPosition:function(){ return this.dom.controls.currentPosition; },
getPositionString:function(){ return this.dom.controls.currentPositionString; },
getPlayState:function(){ return this.dom.playState; },
// 操作方法
OpenUrl:function(URL){ this.dom.URL=URL; },
Play:function(){ this.dom.controls.play(); },
Pause:function(){ this.dom.controls.pause();},
Stop:function(){ this.dom.controls.stop(); }
}
/* MediaPlayer类定义 冰点原创 */
var mpl=new MediaPlayer(); //创建一个MediaPlayer
window.onload=function()
{
mpl.CreateAt("divMpl");
mpl.setValume(100);
mpl.setMode(MediaPlayer.uiMode.Full);
mpl.onPlay=function(){ ShowMessage("正在播放["+this.getMediaName()+"]"); };
mpl.onPaused=function(){ ShowMessage("暂停"); };
mpl.onMediaEnded=function(){ ShowMessage("播放结束"); };
mpl.onStop=function(){ ShowMessage("停止"); };
mpl.onPositionChange=function(oldPos,newPos){
var pos1={
min:parseInt(oldPos/60),
sec:parseInt(oldPos%60)
}
var pos2={
min:parseInt(newPos/60),
sec:parseInt(newPos%60)
}
ShowMessage(pos1.min+":"+pos1.sec+ "->"+ pos2.min+":"+pos2.sec);
};
//mpl.onStatusChange=function(){ ShowMessage(this.getStatus()); };
mpl.OpenUrl("DuskToDawn.wma");
window.setInterval("ShowPlayTime()",1000);
}
function ShowPlayTime()
{
if(mpl.getPlayState()==3)
{
ShowStatus(mpl.getPositionString());
}
}
function ShowMessage(str)
{
var msg=document.getElementById("divMsg");
var tn=document.createTextNode(str);
msg.appendChild(tn);
msg.appendChild(document.createElement("br"));
}
function ShowStatus(str)
{
document.getElementById("divStatus").innerHTML=str;
}
</script>
</head>
<body>
<div id="divMpl"></div>
<div id="divStatus"> </div>
<input type="button" value="清空消息" onclick="document.getElementById('divMsg').innerHTML='';" />
<div id="divMsg"></div>
</body>
</html>
