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Boy-oh-boy我討厭外部接口嗎？我有一個視頻播放器，利用外部接口來控制Flash對象，並允許Flash對象將消息傳遞給相同的JavaScript。一段時間以來，它在所有瀏覽器中運行良好。然後前幾天我就去在所有瀏覽器進行測試之前，我感動項目進行開發，並發現該應用程序在Internet Explorer 9打破在控制檯中出現以下錯誤：外部接口和Internet Explorer 9問題
SCRIPT16389: Could not complete the operation due to error 8070000c.
jquery.min.js, line 16 character 29366
我JavaScript文件真的很長，但這裏是重要的部分。我所有的行爲都包含在我創建的對象中。裏面的我的方法之一，我有以下行：
var that = this;
that.stop();
這裏是所有被調用作爲方法的結果的方法：
this.stop = function(){
var that = this;
console.log('stop called');
that.pause();
that.seek(0);
that.isPlaying = false;
console.log('stop finished');
};
this.pause = function(){
var that = this;
console.log('pause called');
if(that.player == 'undefined' || that.player == null){
that.player = that.GetMediaObject(that.playerID);
}
that.player.pauseMedia(); //external interface call
that.isPlaying = false;
console.log('pause finished');
};
this.seek = function(seek){
var that = this;
console.log('seek called');
if(that.player == 'undefined' || that.player ==null){
console.log("player="+that.player+". resetting player object");
that.player = that.GetMediaObject(that.playerID);
console.log("player="+that.player);
}
that.player.scrubMedia(seek); //external interface call
console.log('seek finished');
};
//this method returns a reference to my player. This method is call once when the page loads and then again as necessary by all methods that make external interface calls
this.GetMediaObject = function(playerID){
var mediaObj = swfobject.getObjectById(playerID);
console.log('fetching media object: ' +mediaObj);
//if swfobject.getObjectById fails
if(typeof mediaObj == 'undefined' || mediaObj == null){
console.log('secondary fetch required');
var isIE = navigator.userAgent.match(/MSIE/i);
mediaObj = isIE ? window[playerID] : document[playerID];
}
return mediaObj;
};
下面是從我的console.log statments輸出：
LOG: fetching media object: [object HTMLObjectElement]
LOG: video-obj-1: ready
LOG: stop called
LOG: pause called
LOG: pause finished
LOG: seek called
LOG: player=[object HTMLObjectElement]
SCRIPT16389: Could not complete the operation due to error 8070000c.
jquery.min.js, line 16 character 29366
有趣的是，它似乎是第一個外部接口調用「that.player.pauseMedia（）」沒有任何問題，但後續調用「that.player.scrubMedi一個（0）'失敗。另一個奇怪的是，它指向jquery作爲錯誤的來源，但在這些函數中沒有對jquery的調用。
這是我所知道的不是。這不是我的時機關閉的問題。當flash對象完全加載時，我的動作的最後一行向javascript發送消息。另外我將參數'allowScriptAccess'設置爲'always'，所以它不是那樣。我們使用的actionscript文件已經在以前的項目中使用過，所以我90％確定這不是問題。
這裏是我的動作無論如何。我沒有寫動作，我不是太熟悉的語言，但我試圖把似乎最爲相關的我的應用程序的部分：
flash.system.Security.allowDomain("*.mydomain.com");
import flash.external.ExternalInterface;
// variables to store local information about the current media
var mediaEmbedServer:String = "www";
var mediaPlayerID:String;
var mediaFile:String;
var mediaDuration:Number;
// variables to be watched by actionscript and message javascript on changes
var mediaPositions:String = "0,0"; // buffer position, scrub position
var mediaStatus:String;
var netStreamClient:Object = new Object();
netStreamClient.onMetaData = metaDataHandler;
netStreamClient.onCuePoint = cuePointHandler;
var connection:NetConnection;
var stream:NetStream;
var media:Video = new Video();
// grab the media's duration when it becomes available
function metaDataHandler(info:Object):void {
mediaDuration = info.duration;
}
function cuePointHandler(info:Object):void {
}
connection = new NetConnection();
connection.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
connection.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);
try {
var paramName:String;
var paramValue:String;
var paramObject:Object = LoaderInfo(this.root.loaderInfo).parameters;
for (paramName in paramObject) {
paramValue = String(paramObject[paramName]);
switch (paramName){
case "server":
mediaEmbedServer = paramValue;
break
case "playerID":
mediaPlayerID = paramValue;
break
}
}
} catch (error:Error) {
}
if (mediaEmbedServer == "dev" || mediaEmbedServer == "dev2"){
connection.connect("rtmp://media.developmentMediaServer.com/myApp");
} else {
connection.connect("rtmp://media.myMediaServer.com/myApp");
}
function securityErrorHandler(event:SecurityErrorEvent):void {
trace("securityErrorHandler: " + event);
}
function connectStream():void {
stream = new NetStream(connection);
stream.soundTransform = new SoundTransform(1);
stream.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
stream.client = netStreamClient;
media.attachNetStream(stream);
media.width = 720;
media.height = 405;
addChild(media);
}
function netStatusHandler(stats:NetStatusEvent){
switch (stats.info.code){
case "NetConnection.Connect.Success":
connectStream();
break;
case "NetConnection.Call.BadVersion":
case "NetConnection.Call.Failed":
case "NetConnection.Call.Prohibited":
case "NetConnection.Connect.AppShutdown":
case "NetConnection.Connect.Failed":
case "NetConnection.Connect.InvalidApp":
case "NetConnection.Connect.Rejected":
case "NetGroup.Connect.Failed":
case "NetGroup.Connect.Rejected":
case "NetStream.Connect.Failed":
case "NetStream.Connect.Rejected":
case "NetStream.Failed":
case "NetStream.Play.Failed":
case "NetStream.Play.FileStructureInvalid":
case "NetStream.Play.NoSupportedTrackFound":
case "NetStream.Play.StreamNotFound":
case "NetStream.Seek.Failed":
case "NetStream.Seek.InvalidTime":
// report error status and reset javascriptPlay
clearInterval(progressInterval);
messageStatus("error");
break;
default:
// check time through file to determine if media is over
if (stream.time > 0 && stream.time >= (mediaDuration - .25)){
// reset media if it has ended
clearInterval(progressInterval);
stream.play(mediaFile, 0, 0);
messageStatus("finished");
}
}
};
var progressInterval:Number;
// respond to a play/pause request by playing/pausing the current stream
function pauseMedia(){
clearInterval(progressInterval);
if (mediaStatus == 'playing'){
stream.pause();
messageStatus("paused");
}
};
ExternalInterface.addCallback("pauseMedia", pauseMedia);
// respond to a scrub request by seeking to a position in the media
function scrubMedia(newPosition){
clearInterval(progressInterval);
if (mediaStatus == "playing"){
stream.pause();
messageStatus("paused");
}
stream.seek(newPosition * mediaDuration);
var positionSeconds = newPosition * mediaDuration;
messagePositions(positionSeconds+","+positionSeconds);
};
ExternalInterface.addCallback("scrubMedia", scrubMedia);
ExternalInterface.call("MediaPlayerReady", mediaPlayerID);