scratch – Blame information for rev 125
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Rev | Author | Line No. | Line |
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125 | office | 1 | define([ |
58 | office | 2 | "../core", |
3 | "../var/support", |
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4 | "../ajax" |
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5 | ], function( jQuery, support ) { |
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6 | |||
7 | jQuery.ajaxSettings.xhr = function() { |
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8 | try { |
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125 | office | 9 | return new XMLHttpRequest(); |
10 | } catch( e ) {} |
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58 | office | 11 | }; |
12 | |||
125 | office | 13 | var xhrId = 0, |
14 | xhrCallbacks = {}, |
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15 | xhrSuccessStatus = { |
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16 | // file protocol always yields status code 0, assume 200 |
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58 | office | 17 | 0: 200, |
125 | office | 18 | // Support: IE9 |
58 | office | 19 | // #1450: sometimes IE returns 1223 when it should be 204 |
20 | 1223: 204 |
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21 | }, |
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22 | xhrSupported = jQuery.ajaxSettings.xhr(); |
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23 | |||
125 | office | 24 | // Support: IE9 |
25 | // Open requests must be manually aborted on unload (#5280) |
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26 | // See https://support.microsoft.com/kb/2856746 for more info |
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27 | if ( window.attachEvent ) { |
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28 | window.attachEvent( "onunload", function() { |
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29 | for ( var key in xhrCallbacks ) { |
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30 | xhrCallbacks[ key ](); |
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31 | } |
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32 | }); |
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33 | } |
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34 | |||
58 | office | 35 | support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported ); |
36 | support.ajax = xhrSupported = !!xhrSupported; |
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37 | |||
125 | office | 38 | jQuery.ajaxTransport(function( options ) { |
39 | var callback; |
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58 | office | 40 | |
41 | // Cross domain only allowed if supported through XMLHttpRequest |
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42 | if ( support.cors || xhrSupported && !options.crossDomain ) { |
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43 | return { |
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44 | send: function( headers, complete ) { |
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45 | var i, |
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125 | office | 46 | xhr = options.xhr(), |
47 | id = ++xhrId; |
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58 | office | 48 | |
125 | office | 49 | xhr.open( options.type, options.url, options.async, options.username, options.password ); |
58 | office | 50 | |
51 | // Apply custom fields if provided |
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52 | if ( options.xhrFields ) { |
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53 | for ( i in options.xhrFields ) { |
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54 | xhr[ i ] = options.xhrFields[ i ]; |
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55 | } |
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56 | } |
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57 | |||
58 | // Override mime type if needed |
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59 | if ( options.mimeType && xhr.overrideMimeType ) { |
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60 | xhr.overrideMimeType( options.mimeType ); |
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61 | } |
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62 | |||
63 | // X-Requested-With header |
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64 | // For cross-domain requests, seeing as conditions for a preflight are |
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65 | // akin to a jigsaw puzzle, we simply never set it to be sure. |
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66 | // (it can always be set on a per-request basis or even using ajaxSetup) |
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67 | // For same-domain requests, won't change header if already provided. |
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125 | office | 68 | if ( !options.crossDomain && !headers["X-Requested-With"] ) { |
69 | headers["X-Requested-With"] = "XMLHttpRequest"; |
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58 | office | 70 | } |
71 | |||
72 | // Set headers |
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73 | for ( i in headers ) { |
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74 | xhr.setRequestHeader( i, headers[ i ] ); |
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75 | } |
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76 | |||
77 | // Callback |
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78 | callback = function( type ) { |
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79 | return function() { |
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80 | if ( callback ) { |
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125 | office | 81 | delete xhrCallbacks[ id ]; |
82 | callback = xhr.onload = xhr.onerror = null; |
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58 | office | 83 | |
84 | if ( type === "abort" ) { |
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85 | xhr.abort(); |
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86 | } else if ( type === "error" ) { |
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125 | office | 87 | complete( |
88 | // file: protocol always yields status 0; see #8605, #14207 |
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89 | xhr.status, |
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90 | xhr.statusText |
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91 | ); |
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58 | office | 92 | } else { |
93 | complete( |
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94 | xhrSuccessStatus[ xhr.status ] || xhr.status, |
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95 | xhr.statusText, |
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125 | office | 96 | // Support: IE9 |
97 | // Accessing binary-data responseText throws an exception |
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98 | // (#11426) |
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99 | typeof xhr.responseText === "string" ? { |
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100 | text: xhr.responseText |
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101 | } : undefined, |
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58 | office | 102 | xhr.getAllResponseHeaders() |
103 | ); |
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104 | } |
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105 | } |
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106 | }; |
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107 | }; |
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108 | |||
109 | // Listen to events |
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110 | xhr.onload = callback(); |
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125 | office | 111 | xhr.onerror = callback("error"); |
58 | office | 112 | |
113 | // Create the abort callback |
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125 | office | 114 | callback = xhrCallbacks[ id ] = callback("abort"); |
58 | office | 115 | |
116 | try { |
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117 | // Do send the request (this may raise an exception) |
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118 | xhr.send( options.hasContent && options.data || null ); |
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119 | } catch ( e ) { |
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120 | // #14683: Only rethrow if this hasn't been notified as an error yet |
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121 | if ( callback ) { |
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122 | throw e; |
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123 | } |
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124 | } |
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125 | }, |
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126 | |||
127 | abort: function() { |
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128 | if ( callback ) { |
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129 | callback(); |
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130 | } |
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131 | } |
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132 | }; |
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133 | } |
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125 | office | 134 | }); |
58 | office | 135 | |
125 | office | 136 | }); |