resources/jquery/jquery.mockjax.js

   1 /*!
   2  * MockJax - jQuery Plugin to Mock Ajax requests
   3  *
   4  * Version:  1.4.0
   5  * Released: 2011-02-04
   6  * Source:   http://github.com/appendto/jquery-mockjax
   7  * Docs:     http://enterprisejquery.com/2010/07/mock-your-ajax-requests-with-mockjax-for-rapid-development
   8  * Plugin:   mockjax
   9  * Author:   Jonathan Sharp (http://jdsharp.com)
  10  * License:  MIT,GPL
  11  *
  12  * Copyright (c) 2010 appendTo LLC.
  13  * Dual licensed under the MIT or GPL licenses.
  14  * http://appendto.com/open-source-licenses
  15  */
  16 (function($) {
  17         var _ajax = $.ajax,
  18                 mockHandlers = [];
  19
  20         function parseXML(xml) {
  21                 if ( window['DOMParser'] == undefined && window.ActiveXObject ) {
  22                         DOMParser = function() { };
  23                         DOMParser.prototype.parseFromString = function( xmlString ) {
  24                                 var doc = new ActiveXObject('Microsoft.XMLDOM');
  25                         doc.async = 'false';
  26                         doc.loadXML( xmlString );
  27                                 return doc;
  28                         };
  29                 }
  30
  31                 try {
  32                         var xmlDoc      = ( new DOMParser() ).parseFromString( xml, 'text/xml' );
  33                         if ( $.isXMLDoc( xmlDoc ) ) {
  34                                 var err = $('parsererror', xmlDoc);
  35                                 if ( err.length == 1 ) {
  36                                         throw('Error: ' + $(xmlDoc).text() );
  37                                 }
  38                         } else {
  39                                 throw('Unable to parse XML');
  40                         }
  41                 } catch( e ) {
  42                         var msg = ( e.name == undefined ? e : e.name + ': ' + e.message );
  43                         $(document).trigger('xmlParseError', [ msg ]);
  44                         return undefined;
  45                 }
  46                 return xmlDoc;
  47         }
  48
  49         $.extend({
  50                 ajax: function(origSettings) {
  51                         var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings),
  52                             mock = false;
  53                         // Iterate over our mock handlers (in registration order) until we find
  54                         // one that is willing to intercept the request
  55                         $.each(mockHandlers, function(k, v) {
  56                                 if ( !mockHandlers[k] ) {
  57                                         return;
  58                                 }
  59                                 var m = null;
  60                                 // If the mock was registered with a function, let the function decide if we
  61                                 // want to mock this request
  62                                 if ( $.isFunction(mockHandlers[k]) ) {
  63                                         m = mockHandlers[k](s);
  64                                 } else {
  65                                         m = mockHandlers[k];
  66                                         // Inspect the URL of the request and check if the mock handler's url
  67                                         // matches the url for this ajax request
  68                                         if ( $.isFunction(m.url.test) ) {
  69                                                 // The user provided a regex for the url, test it
  70                                                 if ( !m.url.test( s.url ) ) {
  71                                                         m = null;
  72                                                 }
  73                                         } else {
  74                                                 // Look for a simple wildcard '*' or a direct URL match
  75                                                 var star = m.url.indexOf('*');
  76                                                 if ( ( m.url != '*' && m.url != s.url && star == -1 ) ||
  77                                                         ( star > -1 && m.url.substr(0, star) != s.url.substr(0, star) ) ) {
  78                                                          // The url we tested did not match the wildcard *
  79                                                          m = null;
  80                                                 }
  81                                         }
  82                                         if ( m ) {
  83                                                 // Inspect the data submitted in the request (either POST body or GET query string)
  84                                                 if ( m.data && s.data ) {
  85                                                         var identical = false;
  86                                                         // Deep inspect the identity of the objects
  87                                                         (function ident(mock, live) {
  88                                                                 // Test for situations where the data is a querystring (not an object)
  89                                                                 if (typeof live === 'string') {
  90                                                                         // Querystring may be a regex
  91                                                                         identical = $.isFunction( mock.test ) ? mock.test(live) : mock == live;
  92                                                                         return identical;
  93                                                                 }
  94                                                                 $.each(mock, function(k, v) {
  95                                                                         if ( live[k] === undefined ) {
  96                                                                                 identical = false;
  97                                                                                 return false;
  98                                                                         } else {
  99                                                                                 identical = true;
 100                                                                                 if ( typeof live[k] == 'object' ) {
 101                                                                                         return ident(mock[k], live[k]);
 102                                                                                 } else {
 103                                                                                         if ( $.isFunction( mock[k].test ) ) {
 104                                                                                                 identical = mock[k].test(live[k]);
 105                                                                                         } else {
 106                                                                                                 identical = ( mock[k] == live[k] );
 107                                                                                         }
 108                                                                                         return identical;
 109                                                                                 }
 110                                                                         }
 111                                                                 });
 112                                                         })(m.data, s.data);
 113                                                         // They're not identical, do not mock this request
 114                                                         if ( identical == false ) {
 115                                                                 m = null;
 116                                                         }
 117                                                 }
 118                                                 // Inspect the request type
 119                                                 if ( m && m.type && m.type != s.type ) {
 120                                                         // The request type doesn't match (GET vs. POST)
 121                                                         m = null;
 122                                                 }
 123                                         }
 124                                 }
 125                                 if ( m ) {
 126                                         mock = true;
 127
 128                                         // Handle console logging
 129                                         var c = $.extend({}, $.mockjaxSettings, m);
 130                                         if ( c.log && $.isFunction(c.log) ) {
 131                                                 c.log('MOCK ' + s.type.toUpperCase() + ': ' + s.url, $.extend({}, s));
 132                                         }
 133
 134                                         var jsre = /=\?(&|$)/, jsc = (new Date()).getTime();
 135
 136                                         // Handle JSONP Parameter Callbacks, we need to replicate some of the jQuery core here
 137                                         // because there isn't an easy hook for the cross domain script tag of jsonp
 138                                         if ( s.dataType === "jsonp" ) {
 139                                                 if ( s.type.toUpperCase() === "GET" ) {
 140                                                         if ( !jsre.test( s.url ) ) {
 141                                                                 s.url += (rquery.test( s.url ) ? "&" : "?") + (s.jsonp || "callback") + "=?";
 142                                                         }
 143                                                 } else if ( !s.data || !jsre.test(s.data) ) {
 144                                                         s.data = (s.data ? s.data + "&" : "") + (s.jsonp || "callback") + "=?";
 145                                                 }
 146                                                 s.dataType = "json";
 147                                         }
 148
 149                                         // Build temporary JSONP function
 150                                         if ( s.dataType === "json" && (s.data && jsre.test(s.data) || jsre.test(s.url)) ) {
 151                                                 jsonp = s.jsonpCallback || ("jsonp" + jsc++);
 152
 153                                                 // Replace the =? sequence both in the query string and the data
 154                                                 if ( s.data ) {
 155                                                         s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");
 156                                                 }
 157
 158                                                 s.url = s.url.replace(jsre, "=" + jsonp + "$1");
 159
 160                                                 // We need to make sure
 161                                                 // that a JSONP style response is executed properly
 162                                                 s.dataType = "script";
 163
 164                                                 // Handle JSONP-style loading
 165                                                 window[ jsonp ] = window[ jsonp ] || function( tmp ) {
 166                                                         data = tmp;
 167                                                         success();
 168                                                         complete();
 169                                                         // Garbage collect
 170                                                         window[ jsonp ] = undefined;
 171
 172                                                         try {
 173                                                                 delete window[ jsonp ];
 174                                                         } catch(e) {}
 175
 176                                                         if ( head ) {
 177                                                                 head.removeChild( script );
 178                                                         }
 179                                                 };
 180                                         }
 181
 182                                         var rurl = /^(\w+:)?\/\/([^\/?#]+)/,
 183                                                 parts = rurl.exec( s.url ),
 184                                                 remote = parts && (parts[1] && parts[1] !== location.protocol || parts[2] !== location.host);
 185
 186                                         // Test if we are going to create a script tag (if so, intercept & mock)
 187                                         if ( s.dataType === "script" && s.type.toUpperCase() === "GET" && remote ) {
 188                                                 // Synthesize the mock request for adding a script tag
 189                                                 var callbackContext = origSettings && origSettings.context || s;
 190
 191                                                 function success() {
 192                                                         // If a local callback was specified, fire it and pass it the data
 193                                                         if ( s.success ) {
 194                                                                 s.success.call( callbackContext, ( m.response ? m.response.toString() : m.responseText || ''), status, {} );
 195                                                         }
 196
 197                                                         // Fire the global callback
 198                                                         if ( s.global ) {
 199                                                                 trigger( "ajaxSuccess", [{}, s] );
 200                                                         }
 201                                                 }
 202
 203                                                 function complete() {
 204                                                         // Process result
 205                                                         if ( s.complete ) {
 206                                                                 s.complete.call( callbackContext, {} , status );
 207                                                         }
 208
 209                                                         // The request was completed
 210                                                         if ( s.global ) {
 211                                                                 trigger( "ajaxComplete", [{}, s] );
 212                                                         }
 213
 214                                                         // Handle the global AJAX counter
 215                                                         if ( s.global && ! --jQuery.active ) {
 216                                                                 jQuery.event.trigger( "ajaxStop" );
 217                                                         }
 218                                                 }
 219
 220                                                 function trigger(type, args) {
 221                                                         (s.context ? jQuery(s.context) : jQuery.event).trigger(type, args);
 222                                                 }
 223
 224                                                 if ( m.response && $.isFunction(m.response) ) {
 225                                                         m.response(origSettings);
 226                                                 } else {
 227                                                         $.globalEval(m.responseText);
 228                                                 }
 229                                                 success();
 230                                                 complete();
 231                                                 return false;
 232                                         }
 233                                         mock = _ajax.call($, $.extend(true, {}, origSettings, {
 234                                                 // Mock the XHR object
 235                                                 xhr: function() {
 236                                                         // Extend with our default mockjax settings
 237                                                         m = $.extend({}, $.mockjaxSettings, m);
 238
 239                                                         if ( m.contentType ) {
 240                                                                 m.headers['content-type'] = m.contentType;
 241                                                         }
 242
 243                                                         // Return our mock xhr object
 244                                                         return {
 245                                                                 status: m.status,
 246                                                                 readyState: 1,
 247                                                                 open: function() { },
 248                                                                 send: function() {
 249                                                                         // This is a substitute for < 1.4 which lacks $.proxy
 250                                                                         var process = (function(that) {
 251                                                                                 return function() {
 252                                                                                         return (function() {
 253                                                                                                 // The request has returned
 254                                                                                                 this.status             = m.status;
 255                                                                                                 this.readyState         = 4;
 256
 257                                                                                                 // We have an executable function, call it to give
 258                                                                                                 // the mock handler a chance to update it's data
 259                                                                                                 if ( $.isFunction(m.response) ) {
 260                                                                                                         m.response(origSettings);
 261                                                                                                 }
 262                                                                                                 // Copy over our mock to our xhr object before passing control back to
 263                                                                                                 // jQuery's onreadystatechange callback
 264                                                                                                 if ( s.dataType == 'json' && ( typeof m.responseText == 'object' ) ) {
 265                                                                                                         this.responseText = JSON.stringify(m.responseText);
 266                                                                                                 } else if ( s.dataType == 'xml' ) {
 267                                                                                                         if ( typeof m.responseXML == 'string' ) {
 268                                                                                                                 this.responseXML = parseXML(m.responseXML);
 269                                                                                                         } else {
 270                                                                                                                 this.responseXML = m.responseXML;
 271                                                                                                         }
 272                                                                                                 } else {
 273                                                                                                         this.responseText = m.responseText;
 274                                                                                                 }
 275                                                                                                 // jQuery < 1.4 doesn't have onreadystate change for xhr
 276                                                                                                 if ( $.isFunction(this.onreadystatechange) ) {
 277                                                                                                         this.onreadystatechange( m.isTimeout ? 'timeout' : undefined );
 278                                                                                                 }
 279                                                                                         }).apply(that);
 280                                                                                 };
 281                                                                         })(this);
 282
 283                                                                         if ( m.proxy ) {
 284                                                                                 // We're proxying this request and loading in an external file instead
 285                                                                                 _ajax({
 286                                                                                         global: false,
 287                                                                                         url: m.proxy,
 288                                                                                         type: m.proxyType,
 289                                                                                         data: m.data,
 290                                                                                         dataType: s.dataType,
 291                                                                                         complete: function(xhr, txt) {
 292                                                                                                 m.responseXML = xhr.responseXML;
 293                                                                                                 m.responseText = xhr.responseText;
 294                                                                                                 this.responseTimer = setTimeout(process, m.responseTime || 0);
 295                                                                                         }
 296                                                                                 });
 297                                                                         } else {
 298                                                                                 // type == 'POST' || 'GET' || 'DELETE'
 299                                                                                 if ( s.async === false ) {
 300                                                                                         // TODO: Blocking delay
 301                                                                                         process();
 302                                                                                 } else {
 303                                                                                         this.responseTimer = setTimeout(process, m.responseTime || 50);
 304                                                                                 }
 305                                                                         }
 306                                                                 },
 307                                                                 abort: function() {
 308                                                                         clearTimeout(this.responseTimer);
 309                                                                 },
 310                                                                 setRequestHeader: function() { },
 311                                                                 getResponseHeader: function(header) {
 312                                                                         // 'Last-modified', 'Etag', 'content-type' are all checked by jQuery
 313                                                                         if ( m.headers && m.headers[header] ) {
 314                                                                                 // Return arbitrary headers
 315                                                                                 return m.headers[header];
 316                                                                         } else if ( header.toLowerCase() == 'last-modified' ) {
 317                                                                                 return m.lastModified || (new Date()).toString();
 318                                                                         } else if ( header.toLowerCase() == 'etag' ) {
 319                                                                                 return m.etag || '';
 320                                                                         } else if ( header.toLowerCase() == 'content-type' ) {
 321                                                                                 return m.contentType || 'text/plain';
 322                                                                         }
 323                                                                 },
 324                                                                 getAllResponseHeaders: function() {
 325                                                                         var headers = '';
 326                                                                         $.each(m.headers, function(k, v) {
 327                                                                                 headers += k + ': ' + v + "\n";
 328                                                                         });
 329                                                                         return headers;
 330                                                                 }
 331                                                         };
 332                                                 }
 333                                         }));
 334                                         return false;
 335                                 }
 336                         });
 337                         // We don't have a mock request, trigger a normal request
 338                         if ( !mock ) {
 339                                 return _ajax.apply($, arguments);
 340                         } else {
 341                                 return mock;
 342                         }
 343                 }
 344         });
 345
 346         $.mockjaxSettings = {
 347                 //url:        null,
 348                 //type:       'GET',
 349                 log:          function(msg) {
 350                                 window['console'] && window.console.log && window.console.log(msg);
 351                               },
 352                 status:       200,
 353                 responseTime: 500,
 354                 isTimeout:    false,
 355                 contentType:  'text/plain',
 356                 response:     '',
 357                 responseText: '',
 358                 responseXML:  '',
 359                 proxy:        '',
 360                 proxyType:    'GET',
 361
 362                 lastModified: null,
 363                 etag:         '',
 364                 headers: {
 365                         etag: 'IJF@H#@923uf8023hFO@I#H#',
 366                         'content-type' : 'text/plain'
 367                 }
 368         };
 369
 370         $.mockjax = function(settings) {
 371                 var i = mockHandlers.length;
 372                 mockHandlers[i] = settings;
 373                 return i;
 374         };
 375         $.mockjaxClear = function(i) {
 376                 if ( arguments.length == 1 ) {
 377                         mockHandlers[i] = null;
 378                 } else {
 379                         mockHandlers = [];
 380                 }
 381         };
 382 })(jQuery);