openo-portal/portal-common/src/main/webapp/common/thirdparty/cometd/jquery/jquery.cometd.js

   1 /*\r
   2  * Copyright (c) 2010 the original author or authors.\r
   3  *\r
   4  * Licensed under the Apache License, Version 2.0 (the "License");\r
   5  * you may not use this file except in compliance with the License.\r
   6  * You may obtain a copy of the License at\r
   7  *\r
   8  *     http://www.apache.org/licenses/LICENSE-2.0\r
   9  *\r
  10  * Unless required by applicable law or agreed to in writing, software\r
  11  * distributed under the License is distributed on an "AS IS" BASIS,\r
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  13  * See the License for the specific language governing permissions and\r
  14  * limitations under the License.\r
  15  */\r
  16 \r
  17 (function($)\r
  18 {\r
  19     function bind($, org_cometd)\r
  20     {\r
  21         // Remap cometd JSON functions to jquery JSON functions\r
  22         org_cometd.JSON.toJSON = JSON.stringify;\r
  23         org_cometd.JSON.fromJSON = JSON.parse;\r
  24 \r
  25         function _setHeaders(xhr, headers)\r
  26         {\r
  27             if (headers)\r
  28             {\r
  29                 for (var headerName in headers)\r
  30                 {\r
  31                     if (headerName.toLowerCase() === 'content-type')\r
  32                     {\r
  33                         continue;\r
  34                     }\r
  35                     xhr.setRequestHeader(headerName, headers[headerName]);\r
  36                 }\r
  37             }\r
  38         }\r
  39 \r
  40         // Remap toolkit-specific transport calls\r
  41         function LongPollingTransport()\r
  42         {\r
  43             var _super = new org_cometd.LongPollingTransport();\r
  44             var that = org_cometd.Transport.derive(_super);\r
  45 \r
  46             that.xhrSend = function(packet)\r
  47             {\r
  48                 return $.ajax({\r
  49                     url: packet.url,\r
  50                     async: packet.sync !== true,\r
  51                     type: 'POST',\r
  52                     contentType: 'application/json;charset=UTF-8',\r
  53                     data: packet.body,\r
  54                     xhrFields: {\r
  55                         // Has no effect if the request is not cross domain\r
  56                         // but if it is, allows cookies to be sent to the server\r
  57                         withCredentials: true\r
  58                     },\r
  59                     beforeSend: function(xhr)\r
  60                     {\r
  61                         _setHeaders(xhr, packet.headers);\r
  62                         // Returning false will abort the XHR send\r
  63                         return true;\r
  64                     },\r
  65                     success: packet.onSuccess,\r
  66                     error: function(xhr, reason, exception)\r
  67                     {\r
  68                         packet.onError(reason, exception);\r
  69                     }\r
  70                 });\r
  71             };\r
  72 \r
  73             return that;\r
  74         }\r
  75 \r
  76         function CallbackPollingTransport()\r
  77         {\r
  78             var _super = new org_cometd.CallbackPollingTransport();\r
  79             var that = org_cometd.Transport.derive(_super);\r
  80 \r
  81             that.jsonpSend = function(packet)\r
  82             {\r
  83                 $.ajax({\r
  84                     url: packet.url,\r
  85                     async: packet.sync !== true,\r
  86                     type: 'GET',\r
  87                     dataType: 'jsonp',\r
  88                     jsonp: 'jsonp',\r
  89                     data: {\r
  90                         // In callback-polling, the content must be sent via the 'message' parameter\r
  91                         message: packet.body\r
  92                     },\r
  93                     beforeSend: function(xhr)\r
  94                     {\r
  95                         _setHeaders(xhr, packet.headers);\r
  96                         // Returning false will abort the XHR send\r
  97                         return true;\r
  98                     },\r
  99                     success: packet.onSuccess,\r
 100                     error: function(xhr, reason, exception)\r
 101                     {\r
 102                         packet.onError(reason, exception);\r
 103                     }\r
 104                 });\r
 105             };\r
 106 \r
 107             return that;\r
 108         }\r
 109 \r
 110         $.Cometd = function(name)\r
 111         {\r
 112             var cometd = new org_cometd.Cometd(name);\r
 113 \r
 114             // Registration order is important\r
 115             if (org_cometd.WebSocket)\r
 116             {\r
 117                 cometd.registerTransport('websocket', new org_cometd.WebSocketTransport());\r
 118             }\r
 119             cometd.registerTransport('long-polling', new LongPollingTransport());\r
 120             cometd.registerTransport('callback-polling', new CallbackPollingTransport());\r
 121 \r
 122             return cometd;\r
 123         };\r
 124 \r
 125         // The default cometd instance\r
 126         $.cometd = new $.Cometd();\r
 127 \r
 128         return $.cometd;\r
 129     }\r
 130 \r
 131     if (typeof define === 'function' && define.amd)\r
 132     {\r
 133         define(['jquery', 'org/cometd'], bind);\r
 134     }\r
 135     else\r
 136     {\r
 137         bind($, org.cometd);\r
 138     }\r
 139 })(jQuery);\r