lib/dojo/request/iframe.js.uncompressed.js

   1 define("dojo/request/iframe", [
   2         'module',
   3         'require',
   4         './watch',
   5         './util',
   6         './handlers',
   7         '../_base/lang',
   8         '../io-query',
   9         '../query',
  10         '../has',
  11         '../dom',
  12         '../dom-construct',
  13         '../_base/window'/*=====,
  14         '../request',
  15         '../_base/declare' =====*/
  16 ], function(module, require, watch, util, handlers, lang, ioQuery, query, has, dom, domConstruct, win/*=====, request, declare =====*/){
  17         var mid = module.id.replace(/[\/\.\-]/g, '_'),
  18                 onload = mid + '_onload';
  19
  20         if(!win.global[onload]){
  21                 win.global[onload] = function(){
  22                         var dfd = iframe._currentDfd;
  23                         if(!dfd){
  24                                 iframe._fireNextRequest();
  25                                 return;
  26                         }
  27
  28                         var response = dfd.response,
  29                                 options = response.options,
  30                                 formNode = dom.byId(options.form) || dfd._tmpForm;
  31
  32                         if(formNode){
  33                                 // remove all the hidden content inputs
  34                                 var toClean = dfd._contentToClean;
  35                                 for(var i=0; i<toClean.length; i++){
  36                                         var key = toClean[i];
  37                                         //Need to cycle over all nodes since we may have added
  38                                         //an array value which means that more than one node could
  39                                         //have the same .name value.
  40                                         for(var j=0; j<formNode.childNodes.length; j++){
  41                                                 var childNode = formNode.childNodes[j];
  42                                                 if(childNode.name === key){
  43                                                         domConstruct.destroy(childNode);
  44                                                         break;
  45                                                 }
  46                                         }
  47                                 }
  48
  49                                 // restore original action + target
  50                                 dfd._originalAction && formNode.setAttribute('action', dfd._originalAction);
  51                                 if(dfd._originalMethod){
  52                                         formNode.setAttribute('method', dfd._originalMethod);
  53                                         formNode.method = dfd._originalMethod;
  54                                 }
  55                                 if(dfd._originalTarget){
  56                                         formNode.setAttribute('target', dfd._originalTarget);
  57                                         formNode.target = dfd._originalTarget;
  58                                 }
  59                         }
  60
  61                         if(dfd._tmpForm){
  62                                 domConstruct.destroy(dfd._tmpForm);
  63                                 delete dfd._tmpForm;
  64                         }
  65
  66                         dfd._finished = true;
  67                 };
  68         }
  69
  70         function create(name, onloadstr, uri){
  71                 if(win.global[name]){
  72                         return win.global[name];
  73                 }
  74
  75                 if(win.global.frames[name]){
  76                         return win.global.frames[name];
  77                 }
  78
  79                 if(!uri){
  80                         if(has('config-useXDomain') && !has('config-dojoBlankHtmlUrl')){
  81                                 console.warn('dojo/request/iframe: When using cross-domain Dojo builds,' +
  82                                         ' please save dojo/resources/blank.html to your domain and set dojoConfig.dojoBlankHtmlUrl' +
  83                                         ' to the path on your domain to blank.html');
  84                         }
  85                         uri = (has('config-dojoBlankHtmlUrl')||require.toUrl('dojo/resources/blank.html'));
  86                 }
  87
  88                 var frame = domConstruct.place(
  89                         '<iframe id="'+name+'" name="'+name+'" src="'+uri+'" onload="'+onloadstr+
  90                         '" style="position: absolute; left: 1px; top: 1px; height: 1px; width: 1px; visibility: hidden">',
  91                         win.body());
  92
  93                 win.global[name] = frame;
  94
  95                 return frame;
  96         }
  97
  98         function setSrc(_iframe, src, replace){
  99                 var frame = win.global.frames[_iframe.name];
 100
 101                 if(frame.contentWindow){
 102                         // We have an iframe node instead of the window
 103                         frame = frame.contentWindow;
 104                 }
 105
 106                 try{
 107                         if(!replace){
 108                                 frame.location = src;
 109                         }else{
 110                                 frame.location.replace(src);
 111                         }
 112                 }catch(e){
 113                         console.log('dojo/request/iframe.setSrc: ', e);
 114                 }
 115         }
 116
 117         function doc(iframeNode){
 118                 if(iframeNode.contentDocument){
 119                         return iframeNode.contentDocument;
 120                 }
 121                 var name = iframeNode.name;
 122                 if(name){
 123                         var iframes = win.doc.getElementsByTagName('iframe');
 124                         if(iframeNode.document && iframes[name].contentWindow && iframes[name].contentWindow.document){
 125                                 return iframes[name].contentWindow.document;
 126                         }else if(win.doc.frames[name] && win.doc.frames[name].document){
 127                                 return win.doc.frames[name].document;
 128                         }
 129                 }
 130                 return null;
 131         }
 132
 133         function createForm(){
 134                 return domConstruct.create('form', {
 135                         name: mid + '_form',
 136                         style: {
 137                                 position: 'absolute',
 138                                 top: '-1000px',
 139                                 left: '-1000px'
 140                         }
 141                 }, win.body());
 142         }
 143
 144         function fireNextRequest(){
 145                 // summary:
 146                 //              Internal method used to fire the next request in the queue.
 147                 var dfd;
 148                 try{
 149                         if(iframe._currentDfd || !iframe._dfdQueue.length){
 150                                 return;
 151                         }
 152                         do{
 153                                 dfd = iframe._currentDfd = iframe._dfdQueue.shift();
 154                         }while(dfd && (dfd.canceled || (dfd.isCanceled && dfd.isCanceled())) && iframe._dfdQueue.length);
 155
 156                         if(!dfd || dfd.canceled || (dfd.isCanceled && dfd.isCanceled())){
 157                                 iframe._currentDfd = null;
 158                                 return;
 159                         }
 160
 161                         var response = dfd.response,
 162                                 options = response.options,
 163                                 c2c = dfd._contentToClean = [],
 164                                 formNode = dom.byId(options.form),
 165                                 notify = util.notify,
 166                                 data = options.data || null,
 167                                 queryStr;
 168
 169                         if(!dfd._legacy && options.method === 'POST' && !formNode){
 170                                 formNode = dfd._tmpForm = createForm();
 171                         }else if(options.method === 'GET' && formNode && response.url.indexOf('?') > -1){
 172                                 queryStr = response.url.slice(response.url.indexOf('?') + 1);
 173                                 data = lang.mixin(ioQuery.queryToObject(queryStr), data);
 174                         }
 175
 176                         if(formNode){
 177                                 if(!dfd._legacy){
 178                                         var parentNode = formNode;
 179                                         do{
 180                                                 parentNode = parentNode.parentNode;
 181                                         }while(parentNode !== win.doc.documentElement);
 182
 183                                         // Append the form node or some browsers won't work
 184                                         if(!parentNode){
 185                                                 formNode.style.position = 'absolute';
 186                                                 formNode.style.left = '-1000px';
 187                                                 formNode.style.top = '-1000px';
 188                                                 win.body().appendChild(formNode);
 189                                         }
 190
 191                                         if(!formNode.name){
 192                                                 formNode.name = mid + '_form';
 193                                         }
 194                                 }
 195
 196                                 // if we have things in data, we need to add them to the form
 197                                 // before submission
 198                                 if(data){
 199                                         var createInput = function(name, value){
 200                                                 domConstruct.create('input', {
 201                                                         type: 'hidden',
 202                                                         name: name,
 203                                                         value: value
 204                                                 }, formNode);
 205                                                 c2c.push(name);
 206                                         };
 207                                         for(var x in data){
 208                                                 var val = data[x];
 209                                                 if(lang.isArray(val) && val.length > 1){
 210                                                         for(var i=0; i<val.length; i++){
 211                                                                 createInput(x, val[i]);
 212                                                         }
 213                                                 }else{
 214                                                         if(!formNode[x]){
 215                                                                 createInput(x, val);
 216                                                         }else{
 217                                                                 formNode[x].value = val;
 218                                                         }
 219                                                 }
 220                                         }
 221                                 }
 222
 223                                 //IE requires going through getAttributeNode instead of just getAttribute in some form cases,
 224                                 //so use it for all.  See #2844
 225                                 var actionNode = formNode.getAttributeNode('action'),
 226                                         methodNode = formNode.getAttributeNode('method'),
 227                                         targetNode = formNode.getAttributeNode('target');
 228
 229                                 if(response.url){
 230                                         dfd._originalAction = actionNode ? actionNode.value : null;
 231                                         if(actionNode){
 232                                                 actionNode.value = response.url;
 233                                         }else{
 234                                                 formNode.setAttribute('action', response.url);
 235                                         }
 236                                 }
 237
 238                                 if(!dfd._legacy){
 239                                         dfd._originalMethod = methodNode ? methodNode.value : null;
 240                                         if(methodNode){
 241                                                 methodNode.value = options.method;
 242                                         }else{
 243                                                 formNode.setAttribute('method', options.method);
 244                                         }
 245                                 }else{
 246                                         if(!methodNode || !methodNode.value){
 247                                                 if(mthdNode){
 248                                                         mthdNode.value = options.method;
 249                                                 }else{
 250                                                         fn.setAttribute("method", options.method);
 251                                                 }
 252                                         }
 253                                 }
 254
 255                                 dfd._originalTarget = targetNode ? targetNode.value : null;
 256                                 if(targetNode){
 257                                         targetNode.value = iframe._iframeName;
 258                                 }else{
 259                                         formNode.setAttribute('target', iframe._iframeName);
 260                                 }
 261                                 formNode.target = iframe._iframeName;
 262
 263                                 notify && notify.emit('send', response, dfd.promise.cancel);
 264                                 iframe._notifyStart(response);
 265                                 formNode.submit();
 266                         }else{
 267                                 // otherwise we post a GET string by changing URL location for the
 268                                 // iframe
 269
 270                                 var extra = '';
 271                                 if(response.options.data){
 272                                         extra = response.options.data;
 273                                         if(typeof extra !== 'string'){
 274                                                 extra = ioQuery.objectToQuery(extra);
 275                                         }
 276                                 }
 277                                 var tmpUrl = response.url + (response.url.indexOf('?') > -1 ? '&' : '?') + extra;
 278                                 notify && notify.emit('send', response, dfd.promise.cancel);
 279                                 iframe._notifyStart(response);
 280                                 iframe.setSrc(iframe._frame, tmpUrl, true);
 281                         }
 282                 }catch(e){
 283                         dfd.reject(e);
 284                 }
 285         }
 286
 287         // dojo/request/watch handlers
 288         function isValid(response){
 289                 return !this.isFulfilled();
 290         }
 291         function isReady(response){
 292                 return !!this._finished;
 293         }
 294         function handleResponse(response, error){
 295                 if(!error){
 296                         try{
 297                                 var options = response.options,
 298                                         doc = iframe.doc(iframe._frame),
 299                                         handleAs = options.handleAs;
 300
 301                                 if(handleAs !== 'html'){
 302                                         if(handleAs === 'xml'){
 303                                                 // IE6-8 have to parse the XML manually. See http://bugs.dojotoolkit.org/ticket/6334
 304                                                 if(doc.documentElement.tagName.toLowerCase() === 'html'){
 305                                                         query('a', doc.documentElement).orphan();
 306                                                         var xmlText = doc.documentElement.innerText;
 307                                                         xmlText = xmlText.replace(/>\s+</g, '><');
 308                                                         response.text = lang.trim(xmlText);
 309                                                 }else{
 310                                                         response.data = doc;
 311                                                 }
 312                                         }else{
 313                                                 // 'json' and 'javascript' and 'text'
 314                                                 response.text = doc.getElementsByTagName('textarea')[0].value; // text
 315                                         }
 316                                         handlers(response);
 317                                 }else{
 318                                         response.data = doc;
 319                                 }
 320                         }catch(e){
 321                                 error = e;
 322                         }
 323                 }
 324
 325                 if(error){
 326                         this.reject(error);
 327                 }else if(this._finished){
 328                         this.resolve(response);
 329                 }else{
 330                         this.reject(new Error('Invalid dojo/request/iframe request state'));
 331                 }
 332         }
 333         function last(response){
 334                 this._callNext();
 335         }
 336
 337         var defaultOptions = {
 338                 method: 'POST'
 339         };
 340         function iframe(url, options, returnDeferred){
 341                 var response = util.parseArgs(url, util.deepCreate(defaultOptions, options), true);
 342                 url = response.url;
 343                 options = response.options;
 344
 345                 if(options.method !== 'GET' && options.method !== 'POST'){
 346                         throw new Error(options.method + ' not supported by dojo/request/iframe');
 347                 }
 348
 349                 if(!iframe._frame){
 350                         iframe._frame = iframe.create(iframe._iframeName, onload + '();');
 351                 }
 352
 353                 var dfd = util.deferred(response, null, isValid, isReady, handleResponse, last);
 354                 dfd._callNext = function(){
 355                         if(!this._calledNext){
 356                                 this._calledNext = true;
 357                                 iframe._currentDfd = null;
 358                                 iframe._fireNextRequest();
 359                         }
 360                 };
 361                 dfd._legacy = returnDeferred;
 362
 363                 iframe._dfdQueue.push(dfd);
 364                 iframe._fireNextRequest();
 365
 366                 watch(dfd);
 367
 368                 return returnDeferred ? dfd : dfd.promise;
 369         }
 370
 371         /*=====
 372         iframe = function(url, options){
 373                 // summary:
 374                 //              Sends a request using an iframe element with the given URL and options.
 375                 // url: String
 376                 //              URL to request
 377                 // options: dojo/request/iframe.__Options?
 378                 //              Options for the request.
 379                 // returns: dojo/request.__Promise
 380         };
 381         iframe.__BaseOptions = declare(request.__BaseOptions, {
 382                 // form: DOMNode?
 383                 //              A form node to use to submit data to the server.
 384                 // data: String|Object?
 385                 //              Data to transfer. When making a GET request, this will
 386                 //              be converted to key=value parameters and appended to the
 387                 //              URL.
 388         });
 389         iframe.__MethodOptions = declare(null, {
 390                 // method: String?
 391                 //              The HTTP method to use to make the request. Must be
 392                 //              uppercase. Only `"GET"` and `"POST"` are accepted.
 393                 //              Default is `"POST"`.
 394         });
 395         iframe.__Options = declare([iframe.__BaseOptions, iframe.__MethodOptions]);
 396
 397         iframe.get = function(url, options){
 398                 // summary:
 399                 //              Send an HTTP GET request using an iframe element with the given URL and options.
 400                 // url: String
 401                 //              URL to request
 402                 // options: dojo/request/iframe.__BaseOptions?
 403                 //              Options for the request.
 404                 // returns: dojo/request.__Promise
 405         };
 406         iframe.post = function(url, options){
 407                 // summary:
 408                 //              Send an HTTP POST request using an iframe element with the given URL and options.
 409                 // url: String
 410                 //              URL to request
 411                 // options: dojo/request/iframe.__BaseOptions?
 412                 //              Options for the request.
 413                 // returns: dojo/request.__Promise
 414         };
 415         =====*/
 416         iframe.create = create;
 417         iframe.doc = doc;
 418         iframe.setSrc = setSrc;
 419
 420         // TODO: Make these truly private in 2.0
 421         iframe._iframeName = mid + '_IoIframe';
 422         iframe._notifyStart = function(){};
 423         iframe._dfdQueue = [];
 424         iframe._currentDfd = null;
 425         iframe._fireNextRequest = fireNextRequest;
 426
 427         util.addCommonMethods(iframe, ['GET', 'POST']);
 428
 429         return iframe;
 430 });