最近花了些时间研究了一下FMS自带的组件 ，由于客户端代码都比较老了，如果有时间的话，准备尝试把 FMS 的组件全都转成 Flex 的 ：）
先转一个简单又实用的 ConnectionLight ，鼠标放上，可以看到当前延迟，上传下载速度，还不太完美，先发上来了，只在本地测试了一下，如果有bug的话请留言,我会继续完善.
使用方法：
1. 由于netconnection chains 在AS 3中不能执行，所以我们要修改一行服务器端代码 （这是 flex or fms or flashplayer的一个bug，详细见： http://bugs.adobe.com/jira/browse/FLEXDOCS-94）
打开 C:\Program Files\Adobe\Flash Media Server 3\scriptlib\components\component.asc
看第 98 行
this.callPrefix = this.derivedTypeName + "/" + this.name + "/";
用下边这行替换
this.callPrefix = this.derivedTypeName + "." + this.name + ".";
2. 在你的服务端 main.asc 最上边加上一行
load("components.asc");
3. 想办法编译nfms.mxml看看结果吧
下载
<-- 注意，压缩包里的ConnectionLight类有些小bug没更新，请自己用下边的代码替换，等正式发布时候会一并更新
主要代码:
package
{
import flash.display.MovieClip;
import flash.events.TimerEvent;
import flash.net.NetConnection;
import flash.utils.Timer;
import mx.core.UIComponent;
import mx.events.FlexEvent;
import mx.managers.ToolTipManager;
public class ConnectionLight extends UIComponent
{
[Embed(source="connectionLight_icons.swf", symbol="connectLight_mc")]
private var Icon:Class;
private var icon_mc:MovieClip
//---------------------------------------------------------
private var __name:String ;
private var __prefix:String ;
private var _nc:NetConnection ;//reference
private var _interval:int = 2 ; //default value 2 second
private var _threshold:Number = 0.1 // default value is 0.1 second
private var _checkTimer:Timer = new Timer (500) //500 ms
// tooltip
private var latency_txt:String =""
private var bwup_txt:String = ""
private var bwdown_txt:String = ""
//---------------------------------------------------------
public function ConnectionLight()
{
super();
this.addEventListener(FlexEvent.REMOVE , onRemove);
ToolTipManager.showDelay = 0;// Display immediately.
ToolTipManager.hideDelay = Infinity
ToolTipManager.toolTipClass = HtmlToolTip
}
override protected function createChildren():void
{
super.createChildren()
this.__name =(this.id==null ? "_DEFAULT_" : this.id)
this.__prefix = "FCConnectionLight."+this.__name+"."
this.icon_mc = new Icon()
this.icon_mc.gotoAndStop(1)
this.addChild(this.icon_mc)
this.toolTip = "waiting..."
}
override protected function measure():void
{
super.measure()
this.measuredHeight = this.measuredMinHeight = this.icon_mc.height
this.measuredWidth = this.measuredMinWidth = this.icon_mc.width;
}
private function onRemove(eo:FlexEvent):void
{
this.removeEventListener(FlexEvent.REMOVE , onRemove)
this._checkTimer.stop()
this._checkTimer.removeEventListener(TimerEvent.TIMER ,onCheckTimer);
this._nc.call(this.__prefix+"close",null)
this._nc.client.FCConnectionLight[this.__name]=null
this._nc = null
}
public function connect(p_nc:NetConnection):void
{
this._nc = p_nc
if(this._nc.client.chainObject.FCConnectionLight == null)this._nc.client.chainObject.FCConnectionLight = {};
this._nc.client.chainObject.FCConnectionLight[this.__name] = this;
this._nc.call(this.__prefix + "connect" , null ,this._interval*1000 )
if(this._nc.connected) this.showGreen();
this._checkTimer.addEventListener(TimerEvent.TIMER , onCheckTimer)
this._checkTimer.start()
}
//********************
// component setter
//********************
public function set interval(p_value:int):void
{
this._interval = p_value ;
}
public function set threshold(p_value:int):void
{
this._threshold = p_value ;
}
//--------------------------------------------
private function isGrey():Boolean
{
return this.icon_mc.currentFrame == 1 ;
}
private function isGreen():Boolean
{
return this.icon_mc.currentFrame == 2 ;
}
private function isYellow():Boolean
{
return this.icon_mc.currentFrame == 3 ;
}
private function isRed():Boolean
{
return this.icon_mc.currentFrame ==4 ;
}
//----------------------------------------------
private function showGrey():void
{
this.icon_mc.gotoAndStop(1);
}
private function showGreen():void
{
this.icon_mc.gotoAndStop(2);
}
private function showYellow():void
{
this.icon_mc.gotoAndStop(3)
}
private function showRed():void
{
this.icon_mc.gotoAndStop(4)
}
private function onCheckTimer(eo:TimerEvent):void
{
if(!this.isGrey() && !this._nc.connected)
{
this.showRed();
} else if(!this.isGreen() && this.isYellow())
{
this.showGreen()
}
}
// be called from server
public function update(ping:Number , up:Number , down:Number):void
{
if(ping > 1000 * this._threshold)
{
this.showYellow()
}else{
this.showGreen()
}
var latency:Object = this.formatTime( ping /1000 )
var upval:Object = this.formatRate(up * 8000)
var dnval:Object = this.formatRate(down * 8000)
this.latency_txt = (ping<1)? "less than 1 msec" : latency.value + " " + latency.unit;
this.bwup_txt = upval.value + " " +upval.unit ;
this.bwdown_txt = dnval.value + " " + dnval.unit ;
if(ToolTipManager.currentToolTip!=null && ToolTipManager.currentTarget == this)ToolTipManager.currentToolTip.text = "Latency: <b>"+this.latency_txt+"</b><br>UP: <b>"+this.bwup_txt+"</b><br>Down: <b>"+this.bwdown_txt+"</b>"
}
private function formatNumber(value:Number):Object
{
var result:Object ;
if ( value < 0.001 ) result = {value:0,exponent:0};
else if ( value < 1 ) result = {value:value*1000,exponent:-3};
else if ( value < 1000 ) result = {value:value,exponent:0};
else if ( value < 1000000 ) result = {value:value/1000,exponent:3};
else if ( value < 1000000000 ) result = {value:value/1000000,exponent:6};
if ( result.value < 10 ) result.value = (Math.round(result.value*100))/100;
else if ( result.value < 100 ) result.value = (Math.round(result.value*10))/10;
else result.value = Math.round(result.value);
return result;
}
private function formatTime(value:Number):Object
{
var fixp:Object = this.formatNumber(value);
if ( fixp.exponent == -3 )fixp.unit = "msec";
else if ( fixp.exponent == 0 )fixp.unit = "sec";
return fixp;
}
private function formatRate(value:Number):Object
{
var fixp:Object = this.formatNumber(value);
if ( fixp.exponent == -3 )fixp.value = 0, fixp.exponent = 0;
else if ( fixp.exponent == 0 )fixp.unit = "bit/s";
else if ( fixp.exponent == 3 )fixp.unit = "kbit/s";
else if ( fixp.exponent == 6 )fixp.unit = "mbit/s";
return fixp;
}
}
}
(陈新) |
