source: Dev/trunk/src/client/dojo/io/iframe.js

define([
        "../_base/config", "../_base/json", "../_base/kernel", /*===== "../_base/declare", =====*/ "../_base/lang",
        "../_base/xhr", "../sniff", "../_base/window",
        "../dom", "../dom-construct", "../query", "require", "../aspect", "../request/iframe"
], function(config, json, kernel, /*===== declare, =====*/ lang, xhr, has, win, dom, domConstruct, query, require, aspect, _iframe){

// module:
//              dojo/io/iframe

kernel.deprecated("dojo/io/iframe", "Use dojo/request/iframe.", "2.0");

/*=====
var __ioArgs = declare(kernel.__IoArgs, {
        // method: String?
        //              The HTTP method to use. "GET" or "POST" are the only supported
        //              values.  It will try to read the value from the form node's
        //              method, then try this argument. If neither one exists, then it
        //              defaults to POST.
        // handleAs: String?
        //              Specifies what format the result data should be given to the
        //              load/handle callback. Valid values are: text, html, xml, json,
        //              javascript. IMPORTANT: For all values EXCEPT html and xml, The
        //              server response should be an HTML file with a textarea element.
        //              The response data should be inside the textarea element. Using an
        //              HTML document the only reliable, cross-browser way this
        //              transport can know when the response has loaded. For the html
        //              handleAs value, just return a normal HTML document.  NOTE: xml
        //              is now supported with this transport (as of 1.1+); a known issue
        //              is if the XML document in question is malformed, Internet Explorer
        //              will throw an uncatchable error.
        // content: Object?
        //              If "form" is one of the other args properties, then the content
        //              object properties become hidden form form elements. For
        //              instance, a content object of {name1 : "value1"} is converted
        //              to a hidden form element with a name of "name1" and a value of
        //              "value1". If there is not a "form" property, then the content
        //              object is converted into a name=value&name=value string, by
        //              using xhr.objectToQuery().
});
=====*/

/*=====
return kernel.io.iframe = {
        // summary:
        //              Deprecated, use dojo/request/iframe instead.
        //              Sends an Ajax I/O call using and Iframe (for instance, to upload files)

        create: function(fname, onloadstr, uri){
                // summary:
                //              Creates a hidden iframe in the page. Used mostly for IO
                //              transports.  You do not need to call this to start a
                //              dojo/io/iframe request. Just call send().
                // fname: String
                //              The name of the iframe. Used for the name attribute on the
                //              iframe.
                // onloadstr: String
                //              A string of JavaScript that will be executed when the content
                //              in the iframe loads.
                // uri: String
                //              The value of the src attribute on the iframe element. If a
                //              value is not given, then dojo/resources/blank.html will be
                //              used.
        },
        setSrc: function(iframe, src, replace){
                // summary:
                //              Sets the URL that is loaded in an IFrame. The replace parameter
                //              indicates whether location.replace() should be used when
                //              changing the location of the iframe.
        },
        doc: function(iframeNode){
                // summary:
                //              Returns the document object associated with the iframe DOM Node argument.
        }
};
=====*/


var mid = _iframe._iframeName;
mid = mid.substring(0, mid.lastIndexOf('_'));

var iframe = lang.delegate(_iframe, {
        // summary:
        //              Deprecated, use dojo/request/iframe instead.
        //              Sends an Ajax I/O call using and Iframe (for instance, to upload files)

        create: function(){
                return iframe._frame = _iframe.create.apply(_iframe, arguments);
        },

        // cover up delegated methods
        get: null,
        post: null,

        send: function(/*__ioArgs*/args){
                // summary:
                //              Function that sends the request to the server.
                //              This transport can only process one send() request at a time, so if send() is called
                //              multiple times, it will queue up the calls and only process one at a time.
                var rDfd;

                //Set up the deferred.
                var dfd = xhr._ioSetArgs(args,
                        function(/*Deferred*/dfd){
                                // summary:
                                //              canceller function for xhr._ioSetArgs call.
                                rDfd && rDfd.cancel();
                        },
                        function(/*Deferred*/dfd){
                                // summary:
                                //              okHandler function for xhr._ioSetArgs call.
                                var value = null,
                                        ioArgs = dfd.ioArgs;
                                try{
                                        var handleAs = ioArgs.handleAs;

                                        //Assign correct value based on handleAs value.
                                        if(handleAs === "xml" || handleAs === "html"){
                                                value = rDfd.response.data;
                                        }else{
                                                value = rDfd.response.text;
                                                if(handleAs === "json"){
                                                        value = json.fromJson(value);
                                                }else if(handleAs === "javascript"){
                                                        value = kernel.eval(value);
                                                }
                                        }
                                }catch(e){
                                        value = e;
                                }
                                return value;
                        },
                        function(/*Error*/error, /*Deferred*/dfd){
                                // summary:
                                //              errHandler function for xhr._ioSetArgs call.
                                dfd.ioArgs._hasError = true;
                                return error;
                        }
                );

                var ioArgs = dfd.ioArgs;

                var method = "GET",
                        form = dom.byId(args.form);
                if(args.method && args.method.toUpperCase() === "POST" && form){
                        method = "POST";
                }

                var options = {
                        method: method,
                        handleAs: args.handleAs === "json" || args.handleAs === "javascript" ? "text" : args.handleAs,
                        form: args.form,
                        query: form ? null : args.content,
                        data: form ? args.content : null,
                        timeout: args.timeout,
                        ioArgs: ioArgs
                };

                if(options.method){
                        options.method = options.method.toUpperCase();
                }

                if(config.ioPublish && kernel.publish && ioArgs.args.ioPublish !== false){
                        var start = aspect.after(_iframe, "_notifyStart", function(data){
                                if(data.options.ioArgs === ioArgs){
                                        start.remove();
                                        xhr._ioNotifyStart(dfd);
                                }
                        }, true);
                }
                rDfd = _iframe(ioArgs.url, options, true);

                ioArgs._callNext = rDfd._callNext;

                rDfd.then(function(){
                        dfd.resolve(dfd);
                }).otherwise(function(error){
                        dfd.ioArgs.error = error;
                        dfd.reject(error);
                });

                return dfd;
        },

        _iframeOnload: win.global[mid + '_onload']
});

lang.setObject("dojo.io.iframe", iframe);

return iframe;
});