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
  19 // Handle cache's special case and global
  20 jQuery.ajaxPrefilter("script", function(s) {
  21
  22         if ( s.cache === undefined ) {
  23                 s.cache = false;
  24         }
  25
  26         if ( s.crossDomain ) {
  27                 s.type = "GET";
  28                 s.global = false;
  29         }
  30 });
  31
  32 // Bind script tag hack transport
  33 jQuery.ajaxTransport("script", function(s) {
  34
  35         // This transport only deals with cross domain requests
  36         if ( s.crossDomain ) {
  37
  38                 var script,
  39                         head = document.getElementsByTagName("head")[0] || document.documentElement;
  40
  41                 return {
  42
  43                         send: function(_, callback) {
  44
  45                                 script = document.createElement("script");
  46
  47                                 script.async = "async";
  48
  49                                 if ( s.scriptCharset ) {
  50                                         script.charset = s.scriptCharset;
  51                                 }
  52
  53                                 script.src = s.url;
  54
  55                                 // Attach handlers for all browsers
  56                                 script.onload = script.onreadystatechange = function( _ , isAbort ) {
  57
  58                                         if ( ! script.readyState || /loaded|complete/.test( script.readyState ) ) {
  59
  60                                                 // Handle memory leak in IE
  61                                                 script.onload = script.onreadystatechange = null;
  62
  63                                                 // Remove the script
  64                                                 if ( head && script.parentNode ) {
  65                                                         head.removeChild( script );
  66                                                 }
  67
  68                                                 // Dereference the script
  69                                                 script = 0;
  70
  71                                                 // Callback if not abort
  72                                                 if ( ! isAbort ) {
  73                                                         callback( 200, "success" );
  74                                                 }
  75                                         }
  76                                 };
  77                                 // Use insertBefore instead of appendChild  to circumvent an IE6 bug.
  78                                 // This arises when a base node is used (#2709 and #4378).
  79                                 head.insertBefore( script, head.firstChild );
  80                         },
  81
  82                         abort: function() {
  83                                 if ( script ) {
  84                                         script.onload(0,1);
  85                                 }
  86                         }
  87                 };
  88         }
  89 });
  90
  91 })( jQuery );