diff options
Diffstat (limited to 'lib/dojo/io/script.js')
| -rw-r--r-- | lib/dojo/io/script.js | 258 |
1 files changed, 2 insertions, 256 deletions
diff --git a/lib/dojo/io/script.js b/lib/dojo/io/script.js index a44e9f2ee..03459fae1 100644 --- a/lib/dojo/io/script.js +++ b/lib/dojo/io/script.js @@ -4,259 +4,5 @@ see: http://dojotoolkit.org/license for details */ - -if(!dojo._hasResource["dojo.io.script"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. -dojo._hasResource["dojo.io.script"] = true; -dojo.provide("dojo.io.script"); - -dojo.getObject("io", true, dojo); - -/*===== -dojo.declare("dojo.io.script.__ioArgs", dojo.__IoArgs, { - constructor: function(){ - // summary: - // All the properties described in the dojo.__ioArgs type, apply to this - // type as well, EXCEPT "handleAs". It is not applicable to - // dojo.io.script.get() calls, since it is implied by the usage of - // "jsonp" (response will be a JSONP call returning JSON) - // or the response is pure JavaScript defined in - // the body of the script that was attached. - // callbackParamName: String - // Deprecated as of Dojo 1.4 in favor of "jsonp", but still supported for - // legacy code. See notes for jsonp property. - // jsonp: String - // The URL parameter name that indicates the JSONP callback string. - // For instance, when using Yahoo JSONP calls it is normally, - // jsonp: "callback". For AOL JSONP calls it is normally - // jsonp: "c". - // checkString: String - // A string of JavaScript that when evaluated like so: - // "typeof(" + checkString + ") != 'undefined'" - // being true means that the script fetched has been loaded. - // Do not use this if doing a JSONP type of call (use callbackParamName instead). - // frameDoc: Document - // The Document object for a child iframe. If this is passed in, the script - // will be attached to that document. This can be helpful in some comet long-polling - // scenarios with Firefox and Opera. - this.callbackParamName = callbackParamName; - this.jsonp = jsonp; - this.checkString = checkString; - this.frameDoc = frameDoc; - } -}); -=====*/ -(function(){ - var loadEvent = dojo.isIE ? "onreadystatechange" : "load", - readyRegExp = /complete|loaded/; - - dojo.io.script = { - get: function(/*dojo.io.script.__ioArgs*/args){ - // summary: - // sends a get request using a dynamically created script tag. - var dfd = this._makeScriptDeferred(args); - var ioArgs = dfd.ioArgs; - dojo._ioAddQueryToUrl(ioArgs); - - dojo._ioNotifyStart(dfd); - - if(this._canAttach(ioArgs)){ - var node = this.attach(ioArgs.id, ioArgs.url, args.frameDoc); - - //If not a jsonp callback or a polling checkString case, bind - //to load event on the script tag. - if(!ioArgs.jsonp && !ioArgs.args.checkString){ - var handle = dojo.connect(node, loadEvent, function(evt){ - if(evt.type == "load" || readyRegExp.test(node.readyState)){ - dojo.disconnect(handle); - ioArgs.scriptLoaded = evt; - } - }); - } - } - - dojo._ioWatch(dfd, this._validCheck, this._ioCheck, this._resHandle); - return dfd; - }, - - attach: function(/*String*/id, /*String*/url, /*Document?*/frameDocument){ - // summary: - // creates a new <script> tag pointing to the specified URL and - // adds it to the document. - // description: - // Attaches the script element to the DOM. Use this method if you - // just want to attach a script to the DOM and do not care when or - // if it loads. - var doc = (frameDocument || dojo.doc); - var element = doc.createElement("script"); - element.type = "text/javascript"; - element.src = url; - element.id = id; - element.charset = "utf-8"; - return doc.getElementsByTagName("head")[0].appendChild(element); - }, - - remove: function(/*String*/id, /*Document?*/frameDocument){ - //summary: removes the script element with the given id, from the given frameDocument. - //If no frameDocument is passed, the current document is used. - dojo.destroy(dojo.byId(id, frameDocument)); - - //Remove the jsonp callback on dojo.io.script, if it exists. - if(this["jsonp_" + id]){ - delete this["jsonp_" + id]; - } - }, - - _makeScriptDeferred: function(/*Object*/args){ - //summary: - // sets up a Deferred object for an IO request. - var dfd = dojo._ioSetArgs(args, this._deferredCancel, this._deferredOk, this._deferredError); - - var ioArgs = dfd.ioArgs; - ioArgs.id = dojo._scopeName + "IoScript" + (this._counter++); - ioArgs.canDelete = false; - - //Special setup for jsonp case - ioArgs.jsonp = args.callbackParamName || args.jsonp; - if(ioArgs.jsonp){ - //Add the jsonp parameter. - ioArgs.query = ioArgs.query || ""; - if(ioArgs.query.length > 0){ - ioArgs.query += "&"; - } - ioArgs.query += ioArgs.jsonp - + "=" - + (args.frameDoc ? "parent." : "") - + dojo._scopeName + ".io.script.jsonp_" + ioArgs.id + "._jsonpCallback"; - - ioArgs.frameDoc = args.frameDoc; - - //Setup the Deferred to have the jsonp callback. - ioArgs.canDelete = true; - dfd._jsonpCallback = this._jsonpCallback; - this["jsonp_" + ioArgs.id] = dfd; - } - return dfd; // dojo.Deferred - }, - - _deferredCancel: function(/*Deferred*/dfd){ - //summary: canceller function for dojo._ioSetArgs call. - - //DO NOT use "this" and expect it to be dojo.io.script. - dfd.canceled = true; - if(dfd.ioArgs.canDelete){ - dojo.io.script._addDeadScript(dfd.ioArgs); - } - }, - - _deferredOk: function(/*Deferred*/dfd){ - //summary: okHandler function for dojo._ioSetArgs call. - - //DO NOT use "this" and expect it to be dojo.io.script. - var ioArgs = dfd.ioArgs; - - //Add script to list of things that can be removed. - if(ioArgs.canDelete){ - dojo.io.script._addDeadScript(ioArgs); - } - - //Favor JSONP responses, script load events then lastly ioArgs. - //The ioArgs are goofy, but cannot return the dfd since that stops - //the callback chain in Deferred. The return value is not that important - //in that case, probably a checkString case. - return ioArgs.json || ioArgs.scriptLoaded || ioArgs; - }, - - _deferredError: function(/*Error*/error, /*Deferred*/dfd){ - //summary: errHandler function for dojo._ioSetArgs call. - - if(dfd.ioArgs.canDelete){ - //DO NOT use "this" and expect it to be dojo.io.script. - if(error.dojoType == "timeout"){ - //For timeouts, remove the script element immediately to - //avoid a response from it coming back later and causing trouble. - dojo.io.script.remove(dfd.ioArgs.id, dfd.ioArgs.frameDoc); - }else{ - dojo.io.script._addDeadScript(dfd.ioArgs); - } - } - console.log("dojo.io.script error", error); - return error; - }, - - _deadScripts: [], - _counter: 1, - - _addDeadScript: function(/*Object*/ioArgs){ - //summary: sets up an entry in the deadScripts array. - dojo.io.script._deadScripts.push({id: ioArgs.id, frameDoc: ioArgs.frameDoc}); - //Being extra paranoid about leaks: - ioArgs.frameDoc = null; - }, - - _validCheck: function(/*Deferred*/dfd){ - //summary: inflight check function to see if dfd is still valid. - - //Do script cleanup here. We wait for one inflight pass - //to make sure we don't get any weird things by trying to remove a script - //tag that is part of the call chain (IE 6 has been known to - //crash in that case). - var _self = dojo.io.script; - var deadScripts = _self._deadScripts; - if(deadScripts && deadScripts.length > 0){ - for(var i = 0; i < deadScripts.length; i++){ - //Remove the script tag - _self.remove(deadScripts[i].id, deadScripts[i].frameDoc); - deadScripts[i].frameDoc = null; - } - dojo.io.script._deadScripts = []; - } - - return true; - }, - - _ioCheck: function(/*Deferred*/dfd){ - //summary: inflight check function to see if IO finished. - var ioArgs = dfd.ioArgs; - //Check for finished jsonp - if(ioArgs.json || (ioArgs.scriptLoaded && !ioArgs.args.checkString)){ - return true; - } - - //Check for finished "checkString" case. - var checkString = ioArgs.args.checkString; - if(checkString && eval("typeof(" + checkString + ") != 'undefined'")){ - return true; - } - - return false; - }, - - _resHandle: function(/*Deferred*/dfd){ - //summary: inflight function to handle a completed response. - if(dojo.io.script._ioCheck(dfd)){ - dfd.callback(dfd); - }else{ - //This path should never happen since the only way we can get - //to _resHandle is if _ioCheck is true. - dfd.errback(new Error("inconceivable dojo.io.script._resHandle error")); - } - }, - - _canAttach: function(/*Object*/ioArgs){ - //summary: A method that can be overridden by other modules - //to control when the script attachment occurs. - return true; - }, - - _jsonpCallback: function(/*JSON Object*/json){ - //summary: - // generic handler for jsonp callback. A pointer to this function - // is used for all jsonp callbacks. NOTE: the "this" in this - // function will be the Deferred object that represents the script - // request. - this.ioArgs.json = json; - } - }; -})(); - -} +//>>built +define("dojo/io/script",["../main"],function(_1){_1.getObject("io",true,_1);var _2=_1.isIE?"onreadystatechange":"load",_3=/complete|loaded/;_1.io.script={get:function(_4){var _5=this._makeScriptDeferred(_4);var _6=_5.ioArgs;_1._ioAddQueryToUrl(_6);_1._ioNotifyStart(_5);if(this._canAttach(_6)){var _7=this.attach(_6.id,_6.url,_4.frameDoc);if(!_6.jsonp&&!_6.args.checkString){var _8=_1.connect(_7,_2,function(_9){if(_9.type=="load"||_3.test(_7.readyState)){_1.disconnect(_8);_6.scriptLoaded=_9;}});}}_1._ioWatch(_5,this._validCheck,this._ioCheck,this._resHandle);return _5;},attach:function(id,_a,_b){var _c=(_b||_1.doc);var _d=_c.createElement("script");_d.type="text/javascript";_d.src=_a;_d.id=id;_d.async=true;_d.charset="utf-8";return _c.getElementsByTagName("head")[0].appendChild(_d);},remove:function(id,_e){_1.destroy(_1.byId(id,_e));if(this["jsonp_"+id]){delete this["jsonp_"+id];}},_makeScriptDeferred:function(_f){var dfd=_1._ioSetArgs(_f,this._deferredCancel,this._deferredOk,this._deferredError);var _10=dfd.ioArgs;_10.id=_1._scopeName+"IoScript"+(this._counter++);_10.canDelete=false;_10.jsonp=_f.callbackParamName||_f.jsonp;if(_10.jsonp){_10.query=_10.query||"";if(_10.query.length>0){_10.query+="&";}_10.query+=_10.jsonp+"="+(_f.frameDoc?"parent.":"")+_1._scopeName+".io.script.jsonp_"+_10.id+"._jsonpCallback";_10.frameDoc=_f.frameDoc;_10.canDelete=true;dfd._jsonpCallback=this._jsonpCallback;this["jsonp_"+_10.id]=dfd;}return dfd;},_deferredCancel:function(dfd){dfd.canceled=true;if(dfd.ioArgs.canDelete){_1.io.script._addDeadScript(dfd.ioArgs);}},_deferredOk:function(dfd){var _11=dfd.ioArgs;if(_11.canDelete){_1.io.script._addDeadScript(_11);}return _11.json||_11.scriptLoaded||_11;},_deferredError:function(_12,dfd){if(dfd.ioArgs.canDelete){if(_12.dojoType=="timeout"){_1.io.script.remove(dfd.ioArgs.id,dfd.ioArgs.frameDoc);}else{_1.io.script._addDeadScript(dfd.ioArgs);}}return _12;},_deadScripts:[],_counter:1,_addDeadScript:function(_13){_1.io.script._deadScripts.push({id:_13.id,frameDoc:_13.frameDoc});_13.frameDoc=null;},_validCheck:function(dfd){var _14=_1.io.script;var _15=_14._deadScripts;if(_15&&_15.length>0){for(var i=0;i<_15.length;i++){_14.remove(_15[i].id,_15[i].frameDoc);_15[i].frameDoc=null;}_1.io.script._deadScripts=[];}return true;},_ioCheck:function(dfd){var _16=dfd.ioArgs;if(_16.json||(_16.scriptLoaded&&!_16.args.checkString)){return true;}var _17=_16.args.checkString;return _17&&eval("typeof("+_17+") != 'undefined'");},_resHandle:function(dfd){if(_1.io.script._ioCheck(dfd)){dfd.callback(dfd);}else{dfd.errback(new Error("inconceivable dojo.io.script._resHandle error"));}},_canAttach:function(_18){return true;},_jsonpCallback:function(_19){this.ioArgs.json=_19;}};return _1.io.script;});
\ No newline at end of file |