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root / trunk / web / dojo / dojox / xmpp / bosh.js

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/*
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        Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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        Available via Academic Free License >= 2.1 OR the modified BSD license.
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        see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojox.xmpp.bosh"]){
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dojo._hasResource["dojox.xmpp.bosh"]=true;
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dojo.provide("dojox.xmpp.bosh");
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dojo.require("dojo.io.script");
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dojo.require("dojo.io.iframe");
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dojo.require("dojox.xml.parser");
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dojox.xmpp.bosh={transportIframes:[],initialize:function(_1){
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this.transportIframes=[];
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var _2=dojox._scopeName+".xmpp.bosh";
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var c=dojo.connect(dojo.getObject(_2),"_iframeOnload",this,function(_3){
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if(_3==0){
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_1.load();
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dojo.disconnect(c);
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}
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});
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for(var i=0;i<_1.iframes;i++){
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var _4="xmpp-transport-"+i;
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var _5=dojo.byId("xmpp-transport-"+i);
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if(_5){
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if(window[_4]){
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window[_4]=null;
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}
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if(window.frames[_4]){
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window.frames[_4]=null;
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}
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dojo.destroy(_5);
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}
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_5=dojo.io.iframe.create("xmpp-transport-"+i,_2+"._iframeOnload("+i+");");
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this.transportIframes.push(_5);
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}
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},_iframeOnload:function(_6){
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var _7=dojo.io.iframe.doc(dojo.byId("xmpp-transport-"+_6));
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_7.write("<script>var isLoaded=true; var rid=0; var transmiting=false; function _BOSH_(msg) { transmiting=false; parent.dojox.xmpp.bosh.handle(msg, rid); } </script>");
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},findOpenIframe:function(){
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for(var i=0;i<this.transportIframes.length;i++){
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var _8=this.transportIframes[i];
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var _9=_8.contentWindow;
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if(_9.isLoaded&&!_9.transmiting){
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return _8;
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}
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}
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return false;
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},handle:function(_a,_b){
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var _c=this["rid"+_b];
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var _d=dojox.xml.parser.parse(_a,"text/xml");
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if(_d){
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_c.ioArgs.xmppMessage=_d;
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}else{
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_c.errback(new Error("Recieved bad document from server: "+_a));
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}
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},get:function(_e){
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var _f=this.findOpenIframe();
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var _10=dojo.io.iframe.doc(_f);
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_e.frameDoc=_10;
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var dfd=this._makeScriptDeferred(_e);
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var _11=dfd.ioArgs;
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_f.contentWindow.rid=_11.rid;
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_f.contentWindow.transmiting=true;
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dojo._ioAddQueryToUrl(_11);
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dojo._ioNotifyStart(dfd);
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dojo.io.script.attach(_11.id,_11.url,_10);
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dojo._ioWatch(dfd,this._validCheck,this._ioCheck,this._resHandle);
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return dfd;
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},remove:function(id,_12){
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dojo.destroy(dojo.byId(id,_12));
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if(this[id]){
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delete this[id];
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}
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},_makeScriptDeferred:function(_13){
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var dfd=dojo._ioSetArgs(_13,this._deferredCancel,this._deferredOk,this._deferredError);
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var _14=dfd.ioArgs;
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_14.id="rid"+_13.rid;
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_14.rid=_13.rid;
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_14.canDelete=true;
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_14.frameDoc=_13.frameDoc;
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this[_14.id]=dfd;
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return dfd;
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},_deferredCancel:function(dfd){
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dfd.canceled=true;
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if(dfd.ioArgs.canDelete){
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dojox.xmpp.bosh._addDeadScript(dfd.ioArgs);
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}
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},_deferredOk:function(dfd){
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var _15=dfd.ioArgs;
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if(_15.canDelete){
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dojox.xmpp.bosh._addDeadScript(_15);
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}
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return _15.xmppMessage||_15;
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},_deferredError:function(_16,dfd){
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if(dfd.ioArgs.canDelete){
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if(_16.dojoType=="timeout"){
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dojox.xmpp.bosh.remove(dfd.ioArgs.id,dfd.ioArgs.frameDoc);
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}else{
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dojox.xmpp.bosh._addDeadScript(dfd.ioArgs);
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}
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}
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return _16;
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},_deadScripts:[],_addDeadScript:function(_17){
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dojox.xmpp.bosh._deadScripts.push({id:_17.id,frameDoc:_17.frameDoc});
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_17.frameDoc=null;
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},_validCheck:function(dfd){
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var _18=dojox.xmpp.bosh;
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var _19=_18._deadScripts;
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if(_19&&_19.length>0){
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for(var i=0;i<_19.length;i++){
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_18.remove(_19[i].id,_19[i].frameDoc);
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_19[i].frameDoc=null;
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}
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dojox.xmpp.bosh._deadScripts=[];
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}
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return true;
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},_ioCheck:function(dfd){
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var _1a=dfd.ioArgs;
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if(_1a.xmppMessage){
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return true;
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}
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return false;
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},_resHandle:function(dfd){
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if(dojox.xmpp.bosh._ioCheck(dfd)){
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dfd.callback(dfd);
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}else{
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dfd.errback(new Error("inconceivable dojox.xmpp.bosh._resHandle error"));
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}
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}};
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}