crm.fsf.org/20131203/files/sites/all/modules-old/civicrm/bower_components/jquery-validation/src/ajax.js

   1 // ajax mode: abort
   2 // usage: $.ajax({ mode: "abort"[, port: "uniqueport"]});
   3 // if mode:"abort" is used, the previous request on that port (port can be undefined) is aborted via XMLHttpRequest.abort()
   4
   5 var pendingRequests = {},
   6         ajax;
   7 // Use a prefilter if available (1.5+)
   8 if ( $.ajaxPrefilter ) {
   9         $.ajaxPrefilter(function( settings, _, xhr ) {
  10                 var port = settings.port;
  11                 if ( settings.mode === "abort" ) {
  12                         if ( pendingRequests[port] ) {
  13                                 pendingRequests[port].abort();
  14                         }
  15                         pendingRequests[port] = xhr;
  16                 }
  17         });
  18 } else {
  19         // Proxy ajax
  20         ajax = $.ajax;
  21         $.ajax = function( settings ) {
  22                 var mode = ( "mode" in settings ? settings : $.ajaxSettings ).mode,
  23                         port = ( "port" in settings ? settings : $.ajaxSettings ).port;
  24                 if ( mode === "abort" ) {
  25                         if ( pendingRequests[port] ) {
  26                                 pendingRequests[port].abort();
  27                         }
  28                         pendingRequests[port] = ajax.apply(this, arguments);
  29                         return pendingRequests[port];
  30                 }
  31                 return ajax.apply(this, arguments);
  32         };
  33 }