forked from socketio/socket.io-client
/
socket.io.js
1640 lines (1423 loc) · 55.2 KB
/
socket.io.js
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/** Socket.IO 0.5 - Built with build.js */
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
this.io = {
version: '0.5',
setPath: function(path){
this.path = /\/$/.test(path) ? path : path + '/';
// this is temporary until we get a fix for injecting Flash WebSocket javascript files dynamically,
// as io.js shouldn't be aware of specific transports.
if ('WebSocket' in window){
WebSocket.__swfLocation = path + 'lib/vendor/web-socket-js/WebSocketMain.swf';
}
}
};
if ('jQuery' in this) jQuery.io = this.io;
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
io.util = {
inherit: function(ctor, superCtor){
// no support for `instanceof` for now
for (var i in superCtor.prototype){
ctor.prototype[i] = superCtor.prototype[i];
}
},
indexOf: function(arr, item, from){
for (var l = arr.length, i = (from < 0) ? Math.max(0, l + from) : from || 0; i < l; i++){
if (arr[i] === item) return i;
}
return -1;
},
isArray: function(obj){
return Object.prototype.toString.call(obj) === '[object Array]';
}
};
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
// abstract
(function(){
var frame = '~m~',
Transport = io.Transport = function(base, options){
this.base = base;
this.options = options;
};
Transport.prototype.send = function(){
throw new Error('Missing send() implementation');
};
Transport.prototype.connect = function(){
throw new Error('Missing connect() implementation');
};
Transport.prototype.disconnect = function(){
throw new Error('Missing disconnect() implementation');
};
Transport.prototype._encode = function(messages){
var ret = '', message,
messages = io.util.isArray(messages) ? messages : [messages];
for (var i = 0, l = messages.length; i < l; i++){
message = messages[i] === null || messages[i] === undefined ? '' : String(messages[i]);
ret += frame + message.length + frame + message;
}
return ret;
};
Transport.prototype._decode = function(data){
var messages = [], number, n;
do {
if (data.substr(0, 3) !== frame) return messages;
data = data.substr(3);
number = '', n = '';
for (var i = 0, l = data.length; i < l; i++){
n = Number(data.substr(i, 1));
if (data.substr(i, 1) == n){
number += n;
} else {
data = data.substr(number.length + frame.length)
number = Number(number);
break;
}
}
messages.push(data.substr(0, number)); // here
data = data.substr(number);
} while(data !== '');
return messages;
};
Transport.prototype._onData = function(data){
var msgs = this._decode(data);
if (msgs){
for (var i = 0, l = msgs.length; i < l; i++){
this._onMessage(msgs[i]);
}
}
};
Transport.prototype._onMessage = function(message){
if (!('sessionid' in this)){
this.sessionid = message;
this._onConnect();
} else if (message.substr(0, 3) == '~h~'){
this._onHeartbeat(message.substr(3));
} else {
this.base._onMessage(message);
}
},
Transport.prototype._onHeartbeat = function(heartbeat){
this.send('~h~' + heartbeat); // echo
};
Transport.prototype._onConnect = function(){
this.connected = true;
this.base._onConnect();
};
Transport.prototype._onDisconnect = function(){
if (!this.connected) return;
this.connected = false;
this.base._onDisconnect();
};
Transport.prototype._prepareUrl = function(){
return (this.base.options.secure ? 'https' : 'http')
+ '://' + this.base.host
+ ':' + this.base.options.port
+ '/' + this.base.options.resource
+ '/' + this.type
+ (this.sessionid ? ('/' + this.sessionid) : '/');
};
})();
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
(function(){
var empty = new Function,
request = function(xdomain){
if ('XDomainRequest' in window && xdomain) return new XDomainRequest();
if ('XMLHttpRequest' in window) return new XMLHttpRequest();
try {
var a = new ActiveXObject('MSXML2.XMLHTTP');
return a;
} catch(e){}
try {
var b = new ActiveXObject('Microsoft.XMLHTTP');
return b;
} catch(e){}
return false;
},
XHR = io.Transport.XHR = function(){
io.Transport.apply(this, arguments);
};
io.util.inherit(XHR, io.Transport);
XHR.prototype.connect = function(){
if (!('_sendBuffer' in this)) this._sendBuffer = [];
this._get();
return this;
};
XHR.prototype.send = function(data){
this._sendBuffer.push(data);
this._checkSend();
return this;
};
XHR.prototype._checkSend = function(){
if (!this._posting && this._sendBuffer.length){
var encoded = this._encode(this._sendBuffer);
this._sendBuffer = [];
this._send(encoded);
}
};
XHR.prototype._send = function(data){
var self = this;
this._posting = true;
this._sendXhr = this._request('send', 'POST');
this._sendXhr.send('data=' + encodeURIComponent(data));
this._sendXhr.onreadystatechange = function(){
var status;
if (self._sendXhr.readyState == 4){
self._sendXhr.onreadystatechange = empty;
try { status = self._sendXhr.status; } catch(e){}
if (status == 200){
self._posting = false;
self._checkSend();
}
}
};
},
XHR.prototype.disconnect = function(){
if (this._xhr){
this._xhr.onreadystatechange = this._xhr.onload = empty;
this._xhr.abort();
}
if (this._sendXhr){
this._sendXhr.onreadystatechange = this._sendXhr.onload = empty;
this._sendXhr.abort();
}
this._onClose();
this._onDisconnect();
return this;
}
XHR.prototype._request = function(url, method, multipart){
var req = request(this.base._isXDomain());
if (multipart) req.multipart = true;
req.open(method || 'GET', this._prepareUrl() + (url ? '/' + url : ''));
if (method == 'POST'){
req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded; charset=utf-8');
}
return req;
};
XHR.check = function(){
try {
if (request()) return true;
} catch(e){}
return false;
};
XHR.request = request;
})();
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
(function(){
var WS = io.Transport.websocket = function(){
io.Transport.apply(this, arguments);
};
io.util.inherit(WS, io.Transport);
WS.prototype.type = 'websocket';
WS.prototype.connect = function(){
var self = this;
this.socket = new WebSocket(this._prepareUrl());
this.socket.onmessage = function(ev){ self._onData(ev.data); };
this.socket.onclose = function(ev){ self._onClose(); };
return this;
};
WS.prototype.send = function(data){
this.socket.send(this._encode(data));
return this;
}
WS.prototype.disconnect = function(){
this.socket.close();
return this;
};
WS.prototype._onClose = function(){
this._onDisconnect();
return this;
};
WS.prototype._prepareUrl = function(){
return (this.base.options.secure ? 'wss' : 'ws')
+ '://' + this.base.host
+ ':' + this.base.options.port
+ '/' + this.base.options.resource
+ '/' + this.type
+ (this.sessionid ? ('/' + this.sessionid) : '');
};
WS.check = function(){
// we make sure WebSocket is not confounded with a previously loaded flash WebSocket
return 'WebSocket' in window && !('__initialize' in WebSocket);
};
WS.xdomainCheck = function(){
return true;
};
})();
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
(function(){
var Flashsocket = io.Transport.flashsocket = function(){
io.Transport.websocket.apply(this, arguments);
};
io.util.inherit(Flashsocket, io.Transport.websocket);
Flashsocket.prototype.type = 'flashsocket';
Flashsocket.prototype._onClose = function(){
if (!this.base.connected){
// something failed, we might be behind a proxy, so we'll try another transport
this.base.options.transports.splice(io.util.indexOf(this.base.options.transports, 'flashsocket'), 1);
this.base.transport = this.base.getTransport();
this.base.connect();
return;
}
return io.Transport.websocket.prototype._onClose.call(this);
};
Flashsocket.check = function(){
if (!('path' in io)) throw new Error('The `flashsocket` transport requires that you call io.setPath() with the path to the socket.io client dir.');
if ('navigator' in window && 'plugins' in navigator && navigator.plugins['Shockwave Flash']){
return !!navigator.plugins['Shockwave Flash'].description;
}
if ('ActiveXObject' in window) {
try {
return !!new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version');
} catch (e) {}
}
return false;
};
Flashsocket.xdomainCheck = function(){
return true;
};
})();
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
(function(){
var HTMLFile = io.Transport.htmlfile = function(){
io.Transport.XHR.apply(this, arguments);
};
io.util.inherit(HTMLFile, io.Transport.XHR);
HTMLFile.prototype.type = 'htmlfile';
HTMLFile.prototype._get = function(){
var self = this;
this._open();
window.attachEvent('onunload', function(){ self._destroy(); });
};
HTMLFile.prototype._open = function(){
this._doc = new ActiveXObject('htmlfile');
this._doc.open();
this._doc.write('<html></html>');
this._doc.parentWindow.s = this;
this._doc.close();
var _iframeC = this._doc.createElement('div');
this._doc.body.appendChild(_iframeC);
this._iframe = this._doc.createElement('iframe');
_iframeC.appendChild(this._iframe);
this._iframe.src = this._prepareUrl() + '/' + (+ new Date);
};
HTMLFile.prototype._ = function(data, doc){
this._onData(data);
var script = doc.getElementsByTagName('script')[0];
script.parentNode.removeChild(script);
};
HTMLFile.prototype._destroy = function(){
this._iframe.src = 'about:blank';
this._doc = null;
CollectGarbage();
};
HTMLFile.prototype.disconnect = function(){
this._destroy();
return io.Transport.XHR.prototype.disconnect.call(this);
};
HTMLFile.check = function(){
if ('ActiveXObject' in window){
try {
var a = new ActiveXObject('htmlfile');
return a && io.Transport.XHR.check();
} catch(e){}
}
return false;
};
HTMLFile.xdomainCheck = function(){
return false; // send() is not cross domain. we need to POST to an iframe to fix it
};
})();
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
(function(){
var XHRMultipart = io.Transport['xhr-multipart'] = function(){
io.Transport.XHR.apply(this, arguments);
};
io.util.inherit(XHRMultipart, io.Transport.XHR);
XHRMultipart.prototype.type = 'xhr-multipart';
XHRMultipart.prototype._get = function(){
var self = this;
this._xhr = this._request('', 'GET', true);
this._xhr.onreadystatechange = function(){
if (self._xhr.readyState == 3) self._onData(self._xhr.responseText);
};
this._xhr.send();
};
XHRMultipart.check = function(){
return 'XMLHttpRequest' in window && 'multipart' in XMLHttpRequest.prototype;
};
XHRMultipart.xdomainCheck = function(){
return true;
};
})();
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
(function(){
var empty = new Function(),
XHRPolling = io.Transport['xhr-polling'] = function(){
io.Transport.XHR.apply(this, arguments);
};
io.util.inherit(XHRPolling, io.Transport.XHR);
XHRPolling.prototype.type = 'xhr-polling';
XHRPolling.prototype._get = function(){
var self = this;
this._xhr = this._request(+ new Date, 'GET');
if ('onload' in this._xhr){
this._xhr.onload = function(){
if (this.responseText.length) self._onData(this.responseText);
self.connect();
};
} else {
this._xhr.onreadystatechange = function(){
var status;
if (self._xhr.readyState == 4){
self._xhr.onreadystatechange = empty;
try { status = self._xhr.status; } catch(e){}
if (status == 200){
if (self._xhr.responseText.length) self._onData(self._xhr.responseText);
self.connect();
}
}
};
}
this._xhr.send();
};
XHRPolling.check = function(){
return io.Transport.XHR.check();
};
XHRPolling.xdomainCheck = function(){
return 'XDomainRequest' in window || 'XMLHttpRequest' in window;
};
})();
/**
* Socket.IO client
*
* @author Guillermo Rauch <guillermo@learnboost.com>
* @license The MIT license.
* @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com>
*/
(function(){
var Socket = io.Socket = function(host, options){
this.host = host || document.domain;
this.options = {
secure: false,
document: document,
heartbeatInterval: 4000,
port: document.location.port || 80,
resource: 'socket.io',
transports: ['websocket', 'flashsocket', 'htmlfile', 'xhr-multipart', 'xhr-polling'],
transportOptions: {},
rememberTransport: true
};
for (var i in options) this.options[i] = options[i];
this.connected = false;
this.connecting = false;
this._events = {};
this.transport = this.getTransport();
if (!this.transport && 'console' in window) console.error('No transport available');
};
Socket.prototype.getTransport = function(){
var transports = this.options.transports, match;
if (this.options.rememberTransport){
match = this.options.document.cookie.match('(?:^|;)\\s*socket\.io=([^;]*)');
if (match) transports = [decodeURIComponent(match[1])];
}
for (var i = 0, transport; transport = transports[i]; i++){
if (io.Transport[transport]
&& io.Transport[transport].check()
&& (!this._isXDomain() || io.Transport[transport].xdomainCheck())){
return new io.Transport[transport](this, this.options.transportOptions[transport] || {});
}
}
return null;
};
Socket.prototype.connect = function(){
if (this.transport && !this.connected && !this.connecting){
this.connecting = true;
this.transport.connect();
}
return this;
};
Socket.prototype.send = function(data){
if (!this.transport || !this.transport.connected) return this._queue(data);
this.transport.send(data);
return this;
};
Socket.prototype.disconnect = function(){
this.transport.disconnect();
return this;
};
Socket.prototype.on = function(name, fn){
if (!(name in this._events)) this._events[name] = [];
this._events[name].push(fn);
return this;
};
Socket.prototype.fire = function(name, args){
if (name in this._events){
for (var i in this._events[name])
this._events[name][i].apply(this, args);
}
return this;
};
Socket.prototype.removeEvent = function(name, fn){
if (name in this._events){
for (var i in this._events[name]){
for (var a = 0, l = this._events[name].length; a < l; a++)
if (this._events[name][a] == fn) this._events[name].splice(a, 1);
}
}
return this;
};
Socket.prototype._queue = function(message){
if (!('_queueStack' in this)) this._queueStack = [];
this._queueStack.push(message);
return this;
};
Socket.prototype._doQueue = function(){
if (!('_queueStack' in this) || !this._queueStack.length) return this;
this.transport.send(JSON.stringify([].concat(this._queueStack)));
this._queueStack = [];
return this;
};
Socket.prototype._isXDomain = function(){
return this.host !== document.domain;
};
Socket.prototype._onConnect = function(){
this.connected = true;
this.connecting = false;
this._doQueue();
if (this.options.rememberTransport) this.options.document.cookie = 'socket.io=' + encodeURIComponent(this.transport.type);
this.fire('connect');
};
Socket.prototype._onMessage = function(data){
this.fire('message', [data]);
};
Socket.prototype._onDisconnect = function(){
this.fire('disconnect');
};
Socket.prototype.addListener = Socket.prototype.addEvent = Socket.prototype.addEventListener = Socket.prototype.on;
})();
/* SWFObject v2.2 <http://code.google.com/p/swfobject/>
is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
*/
var swfobject=function(){var D="undefined",r="object",S="Shockwave Flash",W="ShockwaveFlash.ShockwaveFlash",q="application/x-shockwave-flash",R="SWFObjectExprInst",x="onreadystatechange",O=window,j=document,t=navigator,T=false,U=[h],o=[],N=[],I=[],l,Q,E,B,J=false,a=false,n,G,m=true,M=function(){var aa=typeof j.getElementById!=D&&typeof j.getElementsByTagName!=D&&typeof j.createElement!=D,ah=t.userAgent.toLowerCase(),Y=t.platform.toLowerCase(),ae=Y?/win/.test(Y):/win/.test(ah),ac=Y?/mac/.test(Y):/mac/.test(ah),af=/webkit/.test(ah)?parseFloat(ah.replace(/^.*webkit\/(\d+(\.\d+)?).*$/,"$1")):false,X=!+"\v1",ag=[0,0,0],ab=null;if(typeof t.plugins!=D&&typeof t.plugins[S]==r){ab=t.plugins[S].description;if(ab&&!(typeof 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ad=M.ie&&M.win?"ActiveX":"PlugIn",ac="MMredirectURL="+O.location.toString().replace(/&/g,"%26")+"&MMplayerType="+ad+"&MMdoctitle="+j.title;if(typeof ab.flashvars!=D){ab.flashvars+="&"+ac}else{ab.flashvars=ac}if(M.ie&&M.win&&ae.readyState!=4){var Y=C("div");X+="SWFObjectNew";Y.setAttribute("id",X);ae.parentNode.insertBefore(Y,ae);ae.style.display="none";(function(){if(ae.readyState==4){ae.parentNode.removeChild(ae)}else{setTimeout(arguments.callee,10)}})()}u(aa,ab,X)}}function p(Y){if(M.ie&&M.win&&Y.readyState!=4){var X=C("div");Y.parentNode.insertBefore(X,Y);X.parentNode.replaceChild(g(Y),X);Y.style.display="none";(function(){if(Y.readyState==4){Y.parentNode.removeChild(Y)}else{setTimeout(arguments.callee,10)}})()}else{Y.parentNode.replaceChild(g(Y),Y)}}function g(ab){var aa=C("div");if(M.win&&M.ie){aa.innerHTML=ab.innerHTML}else{var Y=ab.getElementsByTagName(r)[0];if(Y){var ad=Y.childNodes;if(ad){var X=ad.length;for(var Z=0;Z<X;Z++){if(!(ad[Z].nodeType==1&&ad[Z].nodeName=="PARAM")&&!(ad[Z].nodeType==8)){aa.appendChild(ad[Z].cloneNode(true))}}}}}return aa}function u(ai,ag,Y){var X,aa=c(Y);if(M.wk&&M.wk<312){return X}if(aa){if(typeof ai.id==D){ai.id=Y}if(M.ie&&M.win){var ah="";for(var ae in ai){if(ai[ae]!=Object.prototype[ae]){if(ae.toLowerCase()=="data"){ag.movie=ai[ae]}else{if(ae.toLowerCase()=="styleclass"){ah+=' class="'+ai[ae]+'"'}else{if(ae.toLowerCase()!="classid"){ah+=" "+ae+'="'+ai[ae]+'"'}}}}}var af="";for(var ad in ag){if(ag[ad]!=Object.prototype[ad]){af+='<param name="'+ad+'" value="'+ag[ad]+'" />'}}aa.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'+ah+">"+af+"</object>";N[N.length]=ai.id;X=c(ai.id)}else{var Z=C(r);Z.setAttribute("type",q);for(var ac in ai){if(ai[ac]!=Object.prototype[ac]){if(ac.toLowerCase()=="styleclass"){Z.setAttribute("class",ai[ac])}else{if(ac.toLowerCase()!="classid"){Z.setAttribute(ac,ai[ac])}}}}for(var ab in ag){if(ag[ab]!=Object.prototype[ab]&&ab.toLowerCase()!="movie"){e(Z,ab,ag[ab])}}aa.parentNode.replaceChild(Z,aa);X=Z}}return X}function e(Z,X,Y){var aa=C("param");aa.setAttribute("name",X);aa.setAttribute("value",Y);Z.appendChild(aa)}function y(Y){var X=c(Y);if(X&&X.nodeName=="OBJECT"){if(M.ie&&M.win){X.style.display="none";(function(){if(X.readyState==4){b(Y)}else{setTimeout(arguments.callee,10)}})()}else{X.parentNode.removeChild(X)}}}function b(Z){var Y=c(Z);if(Y){for(var X in Y){if(typeof Y[X]=="function"){Y[X]=null}}Y.parentNode.removeChild(Y)}}function c(Z){var X=null;try{X=j.getElementById(Z)}catch(Y){}return X}function C(X){return j.createElement(X)}function i(Z,X,Y){Z.attachEvent(X,Y);I[I.length]=[Z,X,Y]}function F(Z){var Y=M.pv,X=Z.split(".");X[0]=parseInt(X[0],10);X[1]=parseInt(X[1],10)||0;X[2]=parseInt(X[2],10)||0;return(Y[0]>X[0]||(Y[0]==X[0]&&Y[1]>X[1])||(Y[0]==X[0]&&Y[1]==X[1]&&Y[2]>=X[2]))?true:false}function v(ac,Y,ad,ab){if(M.ie&&M.mac){return}var 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swfobject){swfobject[X]=null}swfobject=null})}}();return{registerObject:function(ab,X,aa,Z){if(M.w3&&ab&&X){var Y={};Y.id=ab;Y.swfVersion=X;Y.expressInstall=aa;Y.callbackFn=Z;o[o.length]=Y;w(ab,false)}else{if(Z){Z({success:false,id:ab})}}},getObjectById:function(X){if(M.w3){return z(X)}},embedSWF:function(ab,ah,ae,ag,Y,aa,Z,ad,af,ac){var X={success:false,id:ah};if(M.w3&&!(M.wk&&M.wk<312)&&ab&&ah&&ae&&ag&&Y){w(ah,false);K(function(){ae+="";ag+="";var aj={};if(af&&typeof af===r){for(var al in af){aj[al]=af[al]}}aj.data=ab;aj.width=ae;aj.height=ag;var am={};if(ad&&typeof ad===r){for(var ak in ad){am[ak]=ad[ak]}}if(Z&&typeof Z===r){for(var ai in Z){if(typeof am.flashvars!=D){am.flashvars+="&"+ai+"="+Z[ai]}else{am.flashvars=ai+"="+Z[ai]}}}if(F(Y)){var an=u(aj,am,ah);if(aj.id==ah){w(ah,true)}X.success=true;X.ref=an}else{if(aa&&A()){aj.data=aa;P(aj,am,ah,ac);return}else{w(ah,true)}}if(ac){ac(X)}})}else{if(ac){ac(X)}}},switchOffAutoHideShow:function(){m=false},ua:M,getFlashPlayerVersion:function(){return{major:M.pv[0],minor:M.pv[1],release:M.pv[2]}},hasFlashPlayerVersion:F,createSWF:function(Z,Y,X){if(M.w3){return u(Z,Y,X)}else{return undefined}},showExpressInstall:function(Z,aa,X,Y){if(M.w3&&A()){P(Z,aa,X,Y)}},removeSWF:function(X){if(M.w3){y(X)}},createCSS:function(aa,Z,Y,X){if(M.w3){v(aa,Z,Y,X)}},addDomLoadEvent:K,addLoadEvent:s,getQueryParamValue:function(aa){var Z=j.location.search||j.location.hash;if(Z){if(/\?/.test(Z)){Z=Z.split("?")[1]}if(aa==null){return L(Z)}var Y=Z.split("&");for(var X=0;X<Y.length;X++){if(Y[X].substring(0,Y[X].indexOf("="))==aa){return L(Y[X].substring((Y[X].indexOf("=")+1)))}}}return""},expressInstallCallback:function(){if(a){var X=c(R);if(X&&l){X.parentNode.replaceChild(l,X);if(Q){w(Q,true);if(M.ie&&M.win){l.style.display="block"}}if(E){E(B)}}a=false}}}}();
/*
/*
Copyright 2006 Adobe Systems Incorporated
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The Bridge class, responsible for navigating AS instances
*/
function FABridge(target,bridgeName)
{
this.target = target;
this.remoteTypeCache = {};
this.remoteInstanceCache = {};
this.remoteFunctionCache = {};
this.localFunctionCache = {};
this.bridgeID = FABridge.nextBridgeID++;
this.name = bridgeName;
this.nextLocalFuncID = 0;
FABridge.instances[this.name] = this;
FABridge.idMap[this.bridgeID] = this;
return this;
}
// type codes for packed values
FABridge.TYPE_ASINSTANCE = 1;
FABridge.TYPE_ASFUNCTION = 2;
FABridge.TYPE_JSFUNCTION = 3;
FABridge.TYPE_ANONYMOUS = 4;
FABridge.initCallbacks = {};
FABridge.userTypes = {};
FABridge.addToUserTypes = function()
{
for (var i = 0; i < arguments.length; i++)
{
FABridge.userTypes[arguments[i]] = {
'typeName': arguments[i],
'enriched': false
};
}
}
FABridge.argsToArray = function(args)
{
var result = [];
for (var i = 0; i < args.length; i++)
{
result[i] = args[i];
}
return result;
}
function instanceFactory(objID)
{
this.fb_instance_id = objID;
return this;
}
function FABridge__invokeJSFunction(args)
{
var funcID = args[0];
var throughArgs = args.concat();//FABridge.argsToArray(arguments);
throughArgs.shift();
var bridge = FABridge.extractBridgeFromID(funcID);
return bridge.invokeLocalFunction(funcID, throughArgs);
}
FABridge.addInitializationCallback = function(bridgeName, callback)
{
var inst = FABridge.instances[bridgeName];
if (inst != undefined)
{
callback.call(inst);
return;
}
var callbackList = FABridge.initCallbacks[bridgeName];
if(callbackList == null)
{
FABridge.initCallbacks[bridgeName] = callbackList = [];
}
callbackList.push(callback);
}
// updated for changes to SWFObject2
function FABridge__bridgeInitialized(bridgeName) {
var objects = document.getElementsByTagName("object");
var ol = objects.length;
var activeObjects = [];
if (ol > 0) {
for (var i = 0; i < ol; i++) {
if (typeof objects[i].SetVariable != "undefined") {
activeObjects[activeObjects.length] = objects[i];
}
}
}
var embeds = document.getElementsByTagName("embed");
var el = embeds.length;
var activeEmbeds = [];
if (el > 0) {
for (var j = 0; j < el; j++) {
if (typeof embeds[j].SetVariable != "undefined") {
activeEmbeds[activeEmbeds.length] = embeds[j];
}
}
}
var aol = activeObjects.length;
var ael = activeEmbeds.length;
var searchStr = "bridgeName="+ bridgeName;
if ((aol == 1 && !ael) || (aol == 1 && ael == 1)) {
FABridge.attachBridge(activeObjects[0], bridgeName);
}
else if (ael == 1 && !aol) {
FABridge.attachBridge(activeEmbeds[0], bridgeName);
}
else {
var flash_found = false;
if (aol > 1) {
for (var k = 0; k < aol; k++) {
var params = activeObjects[k].childNodes;
for (var l = 0; l < params.length; l++) {
var param = params[l];
if (param.nodeType == 1 && param.tagName.toLowerCase() == "param" && param["name"].toLowerCase() == "flashvars" && param["value"].indexOf(searchStr) >= 0) {
FABridge.attachBridge(activeObjects[k], bridgeName);
flash_found = true;
break;
}
}
if (flash_found) {
break;
}
}
}
if (!flash_found && ael > 1) {
for (var m = 0; m < ael; m++) {
var flashVars = activeEmbeds[m].attributes.getNamedItem("flashVars").nodeValue;
if (flashVars.indexOf(searchStr) >= 0) {
FABridge.attachBridge(activeEmbeds[m], bridgeName);
break;
}
}
}
}
return true;
}
// used to track multiple bridge instances, since callbacks from AS are global across the page.
FABridge.nextBridgeID = 0;
FABridge.instances = {};
FABridge.idMap = {};
FABridge.refCount = 0;
FABridge.extractBridgeFromID = function(id)
{
var bridgeID = (id >> 16);
return FABridge.idMap[bridgeID];
}
FABridge.attachBridge = function(instance, bridgeName)
{
var newBridgeInstance = new FABridge(instance, bridgeName);
FABridge[bridgeName] = newBridgeInstance;
/* FABridge[bridgeName] = function() {
return newBridgeInstance.root();
}
*/
var callbacks = FABridge.initCallbacks[bridgeName];
if (callbacks == null)
{
return;
}
for (var i = 0; i < callbacks.length; i++)
{
callbacks[i].call(newBridgeInstance);
}
delete FABridge.initCallbacks[bridgeName]
}
// some methods can't be proxied. You can use the explicit get,set, and call methods if necessary.
FABridge.blockedMethods =
{
toString: true,
get: true,
set: true,
call: true
};
FABridge.prototype =
{
// bootstrapping
root: function()
{
return this.deserialize(this.target.getRoot());
},
//clears all of the AS objects in the cache maps
releaseASObjects: function()
{
return this.target.releaseASObjects();
},
//clears a specific object in AS from the type maps
releaseNamedASObject: function(value)
{
if(typeof(value) != "object")
{
return false;
}
else
{
var ret = this.target.releaseNamedASObject(value.fb_instance_id);
return ret;
}
},
//create a new AS Object
create: function(className)
{
return this.deserialize(this.target.create(className));
},
// utilities
makeID: function(token)
{
return (this.bridgeID << 16) + token;
},
// low level access to the flash object
//get a named property from an AS object
getPropertyFromAS: function(objRef, propName)
{
if (FABridge.refCount > 0)
{
throw new Error("You are trying to call recursively into the Flash Player which is not allowed. In most cases the JavaScript setTimeout function, can be used as a workaround.");
}
else
{
FABridge.refCount++;
retVal = this.target.getPropFromAS(objRef, propName);
retVal = this.handleError(retVal);
FABridge.refCount--;
return retVal;
}
},
//set a named property on an AS object
setPropertyInAS: function(objRef,propName, value)
{
if (FABridge.refCount > 0)
{
throw new Error("You are trying to call recursively into the Flash Player which is not allowed. In most cases the JavaScript setTimeout function, can be used as a workaround.");
}
else
{
FABridge.refCount++;
retVal = this.target.setPropInAS(objRef,propName, this.serialize(value));
retVal = this.handleError(retVal);
FABridge.refCount--;
return retVal;
}
},
//call an AS function
callASFunction: function(funcID, args)
{
if (FABridge.refCount > 0)
{
throw new Error("You are trying to call recursively into the Flash Player which is not allowed. In most cases the JavaScript setTimeout function, can be used as a workaround.");
}
else
{
FABridge.refCount++;
retVal = this.target.invokeASFunction(funcID, this.serialize(args));
retVal = this.handleError(retVal);
FABridge.refCount--;
return retVal;
}
},
//call a method on an AS object
callASMethod: function(objID, funcName, args)
{
if (FABridge.refCount > 0)
{
throw new Error("You are trying to call recursively into the Flash Player which is not allowed. In most cases the JavaScript setTimeout function, can be used as a workaround.");
}
else
{
FABridge.refCount++;
args = this.serialize(args);
retVal = this.target.invokeASMethod(objID, funcName, args);
retVal = this.handleError(retVal);
FABridge.refCount--;
return retVal;
}
},
// responders to remote calls from flash
//callback from flash that executes a local JS function
//used mostly when setting js functions as callbacks on events
invokeLocalFunction: function(funcID, args)
{
var result;
var func = this.localFunctionCache[funcID];
if(func != undefined)
{
result = this.serialize(func.apply(null, this.deserialize(args)));
}
return result;