src/ajax/script.js

   1 (function( jQuery ) {
   2
   3 // Install script dataType
   4 jQuery.ajaxSetup({
   5
   6         accepts: {
   7                 script: "text/javascript, application/javascript"
   8         },
   9
  10         contents: {
  11                 script: /javascript/
  12         },
  13
  14         converters: {
  15                 "text script": jQuery.globalEval
  16         }
  17
  18 // Handle cache's special case and global
  19 }).ajaxPrefilter("script", function(s) {
  20
  21         if ( s.cache === undefined ) {
  22                 s.cache = false;
  23         }
  24
  25         if ( s.crossDomain ) {
  26                 s.global = false;
  27         }
  28
  29 // Bind script tag hack transport
  30 }).ajaxTransport("script", function(s) {
  31
  32         // This transport only deals with cross domain requests
  33         if ( s.crossDomain ) {
  34
  35                 var script,
  36                         head = document.getElementsByTagName("head")[0] || document.documentElement;
  37
  38                 return {
  39
  40                         send: function(_, callback) {
  41
  42                                 script = document.createElement("script");
  43
  44                                 script.async = "async";
  45
  46                                 if ( s.scriptCharset ) {
  47                                         script.charset = s.scriptCharset;
  48                                 }
  49
  50                                 script.src = s.url;
  51
  52                                 // Attach handlers for all browsers
  53                                 script.onload = script.onreadystatechange = function( _ , isAbort ) {
  54
  55                                         if ( ! script.readyState || /loaded|complete/.test( script.readyState ) ) {
  56
  57                                                 // Handle memory leak in IE
  58                                                 script.onload = script.onreadystatechange = null;
  59
  60                                                 // Remove the script
  61                                                 if ( head && script.parentNode ) {
  62                                                         head.removeChild( script );
  63                                                 }
  64
  65                                                 // Dereference the script
  66                                                 script = 0;
  67
  68                                                 // Callback if not abort
  69                                                 if ( ! isAbort ) {
  70                                                         callback( 200, "success" );
  71                                                 }
  72                                         }
  73                                 };
  74                                 // Use insertBefore instead of appendChild  to circumvent an IE6 bug.
  75                                 // This arises when a base node is used (#2709 and #4378).
  76                                 head.insertBefore( script, head.firstChild );
  77                         },
  78
  79                         abort: function() {
  80                                 if ( script ) {
  81                                         script.onload(0,1);
  82                                 }
  83                         }
  84                 };
  85         }
  86 });
  87
  88 })( jQuery );