rem: this.canHandle = function(kwArgs){ 
add: this.canHandle = function(/*dojo.io.Request*/kwArgs){      
context: dojo.io.IframeTransport = new function(){	var _this = this;	this.currentRequest = null;	this.requestQueue = [];	this.iframeName = "dojoIoIframe";	this.fireNextRequest = function(){		try{			if((this.currentRequest)||(this.requestQueue.length == 0)){ return; }			// dojo.debug("fireNextRequest");			var cr = this.currentRequest = this.requestQueue.shift();			cr._contentToClean = [];			var fn = cr["formNode"];			var content = cr["content"] || {};			if(cr.sendTransport) {				content["dojo.transport"] = "iframe";			}			if(fn){				if(content){					// if we have things in content, we need to add them to the form					// before submission					for(var x in content){						if(!fn[x]){							var tn;							if(dojo.render.html.ie){								tn = document.createElement("<input type='hidden' name='"+x+"' value='"+content[x]+"'>");								fn.appendChild(tn);							}else{								tn = document.createElement("input");								fn.appendChild(tn);								tn.type = "hidden";								tn.name = x;								tn.value = content[x];							}							cr._contentToClean.push(x);						}else{							fn[x].value = content[x];						}					}				}				if(cr["url"]){					cr._originalAction = fn.getAttribute("action");					fn.setAttribute("action", cr.url);				}				if(!fn.getAttribute("method")){					fn.setAttribute("method", (cr["method"]) ? cr["method"] : "post");				}				cr._originalTarget = fn.getAttribute("target");				fn.setAttribute("target", this.iframeName);				fn.target = this.iframeName;				fn.submit();			}else{				// otherwise we post a GET string by changing URL location for the				// iframe				var query = dojo.io.argsFromMap(this.currentRequest.content);				var tmpUrl = cr.url + (cr.url.indexOf("?") > -1 ? "&" : "?") + query;				dojo.io.setIFrameSrc(this.iframe, tmpUrl, true);			}		}catch(e){			this.iframeOnload(e);		}	}	this.canHandle = function(kwArgs){		return (			(				dojo.lang.inArray([	"text/plain", "text/html", "text/javascript", "text/json", "application/json"], kwArgs["mimetype"])			)&&(				dojo.lang.inArray(["post", "get"], kwArgs["method"].toLowerCase())			)&&(				// never handle a sync request				!  ((kwArgs["sync"])&&(kwArgs["sync"] == true))			)		);	}	this.bind = function(kwArgs){		if(!this["iframe"]){ this.setUpIframe(); }		this.requestQueue.push(kwArgs);		this.fireNextRequest();		return;	}	this.setUpIframe = function(){		// NOTE: IE 5.0 and earlier Mozilla's don't support an onload event for		//       iframes. OTOH, we don't care.		this.iframe = dojo.io.createIFrame(this.iframeName, "dojo.io.IframeTransport.iframeOnload();");	}	this.iframeOnload = function(errorObject /* Object */){		if(!_this.currentRequest){			_this.fireNextRequest();			return;		}		var req = _this.currentRequest;		if(req.formNode){			// remove all the hidden content inputs			var toClean = req._contentToClean;			for(var i = 0; i < toClean.length; i++) {				var key = toClean[i];				if(dojo.render.html.safari){					//In Safari (at least 2.0.3), can't use formNode[key] syntax to find the node,					//for nodes that were dynamically added.					var fNode = req.formNode;					for(var j = 0; j < fNode.childNodes.length; j++){						var chNode = fNode.childNodes[j];						if(chNode.name == key){							var pNode = chNode.parentNode;							pNode.removeChild(chNode);							break;						}					}				}else{					var input = req.formNode[key];					req.formNode.removeChild(input);					req.formNode[key] = null;				}			}				// restore original action + target			if(req["_originalAction"]){				req.formNode.setAttribute("action", req._originalAction);			}			if(req["_originalTarget"]){				req.formNode.setAttribute("target", req._originalTarget);				req.formNode.target = req._originalTarget;			}		}		var contentDoc = function(iframe_el){			var doc = iframe_el.contentDocument || // W3				(					(iframe_el.contentWindow)&&(iframe_el.contentWindow.document)				) ||  // IE				(					(iframe_el.name)&&(document.frames[iframe_el.name])&&					(document.frames[iframe_el.name].document)				) || null;			return doc;		};		var value;		var success = false;		if (errorObject){				this._callError(req, "IframeTransport Request Error: " + errorObject);		}else{			var ifd = contentDoc(_this.iframe);			// handle successful returns			// FIXME: how do we determine success for iframes? Is there an equiv of			// the "status" property?				try{				var cmt = req.mimetype;				if((cmt == "text/javascript")||(cmt == "text/json")||(cmt == "application/json")){					// FIXME: not sure what to do here? try to pull some evalulable					// text from a textarea or cdata section? 					// how should we set up the contract for that?					var js = ifd.getElementsByTagName("textarea")[0].value;					if(cmt == "text/json" || cmt == "application/json") { js = "(" + js + ")"; }					value = dj_eval(js);				}else if(cmt == "text/html"){					value = ifd;				}else{ // text/plain					value = ifd.getElementsByTagName("textarea")[0].value;				}				success = true;			}catch(e){ 				// looks like we didn't get what we wanted!				this._callError(req, "IframeTransport Error: " + e);			}		}		// don't want to mix load function errors with processing errors, thus		// a separate try..catch		try {			if(success && dojo.lang.isFunction(req["load"])){				req.load("load", value, req);			}		} catch(e) {			throw e;		} finally {			_this.currentRequest = null;			_this.fireNextRequest();		}	}		this._callError = function(req /* Object */, message /* String */){		var errObj = new dojo.io.Error(message);		if(dojo.lang.isFunction(req["error"])){			req.error("error", errObj, req);		}	}	dojo.io.transports.addTransport("IframeTransport");}
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/IframeIO.js/buggy/www/resources/dojo-ajax/src/io/IframeIO.js