856 lines
22 KiB
JavaScript
856 lines
22 KiB
JavaScript
define( [
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"./core",
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"./var/document",
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"./var/rnothtmlwhite",
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"./ajax/var/location",
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"./ajax/var/nonce",
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"./ajax/var/rquery",
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"./core/init",
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"./ajax/parseXML",
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"./event/trigger",
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"./deferred",
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"./serialize" // jQuery.param
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], function( jQuery, document, rnothtmlwhite, location, nonce, rquery ) {
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"use strict";
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var
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r20 = /%20/g,
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rhash = /#.*$/,
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rantiCache = /([?&])_=[^&]*/,
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rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
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// #7653, #8125, #8152: local protocol detection
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rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
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rnoContent = /^(?:GET|HEAD)$/,
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rprotocol = /^\/\//,
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/* Prefilters
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* 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
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* 2) These are called:
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* - BEFORE asking for a transport
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* - AFTER param serialization (s.data is a string if s.processData is true)
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* 3) key is the dataType
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* 4) the catchall symbol "*" can be used
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* 5) execution will start with transport dataType and THEN continue down to "*" if needed
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*/
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prefilters = {},
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/* Transports bindings
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* 1) key is the dataType
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* 2) the catchall symbol "*" can be used
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* 3) selection will start with transport dataType and THEN go to "*" if needed
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*/
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transports = {},
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// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
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allTypes = "*/".concat( "*" ),
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// Anchor tag for parsing the document origin
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originAnchor = document.createElement( "a" );
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originAnchor.href = location.href;
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// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
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function addToPrefiltersOrTransports( structure ) {
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// dataTypeExpression is optional and defaults to "*"
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return function( dataTypeExpression, func ) {
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if ( typeof dataTypeExpression !== "string" ) {
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func = dataTypeExpression;
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dataTypeExpression = "*";
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}
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var dataType,
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i = 0,
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dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];
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if ( jQuery.isFunction( func ) ) {
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// For each dataType in the dataTypeExpression
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while ( ( dataType = dataTypes[ i++ ] ) ) {
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// Prepend if requested
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if ( dataType[ 0 ] === "+" ) {
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dataType = dataType.slice( 1 ) || "*";
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( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
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// Otherwise append
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} else {
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( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
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}
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}
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}
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};
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}
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// Base inspection function for prefilters and transports
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function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
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var inspected = {},
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seekingTransport = ( structure === transports );
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function inspect( dataType ) {
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var selected;
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inspected[ dataType ] = true;
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jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
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var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
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if ( typeof dataTypeOrTransport === "string" &&
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!seekingTransport && !inspected[ dataTypeOrTransport ] ) {
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options.dataTypes.unshift( dataTypeOrTransport );
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inspect( dataTypeOrTransport );
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return false;
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} else if ( seekingTransport ) {
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return !( selected = dataTypeOrTransport );
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}
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} );
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return selected;
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}
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return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
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}
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// A special extend for ajax options
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// that takes "flat" options (not to be deep extended)
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// Fixes #9887
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function ajaxExtend( target, src ) {
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var key, deep,
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flatOptions = jQuery.ajaxSettings.flatOptions || {};
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for ( key in src ) {
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if ( src[ key ] !== undefined ) {
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( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
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}
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}
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if ( deep ) {
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jQuery.extend( true, target, deep );
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}
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return target;
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}
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/* Handles responses to an ajax request:
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* - finds the right dataType (mediates between content-type and expected dataType)
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* - returns the corresponding response
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*/
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function ajaxHandleResponses( s, jqXHR, responses ) {
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var ct, type, finalDataType, firstDataType,
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contents = s.contents,
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dataTypes = s.dataTypes;
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// Remove auto dataType and get content-type in the process
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while ( dataTypes[ 0 ] === "*" ) {
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dataTypes.shift();
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if ( ct === undefined ) {
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ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
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}
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}
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// Check if we're dealing with a known content-type
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if ( ct ) {
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for ( type in contents ) {
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if ( contents[ type ] && contents[ type ].test( ct ) ) {
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dataTypes.unshift( type );
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break;
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}
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}
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}
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// Check to see if we have a response for the expected dataType
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if ( dataTypes[ 0 ] in responses ) {
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finalDataType = dataTypes[ 0 ];
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} else {
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// Try convertible dataTypes
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for ( type in responses ) {
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if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
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finalDataType = type;
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break;
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}
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if ( !firstDataType ) {
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firstDataType = type;
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}
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}
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// Or just use first one
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finalDataType = finalDataType || firstDataType;
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}
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// If we found a dataType
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// We add the dataType to the list if needed
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// and return the corresponding response
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if ( finalDataType ) {
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if ( finalDataType !== dataTypes[ 0 ] ) {
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dataTypes.unshift( finalDataType );
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}
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return responses[ finalDataType ];
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}
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}
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/* Chain conversions given the request and the original response
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* Also sets the responseXXX fields on the jqXHR instance
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*/
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function ajaxConvert( s, response, jqXHR, isSuccess ) {
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var conv2, current, conv, tmp, prev,
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converters = {},
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// Work with a copy of dataTypes in case we need to modify it for conversion
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dataTypes = s.dataTypes.slice();
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// Create converters map with lowercased keys
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if ( dataTypes[ 1 ] ) {
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for ( conv in s.converters ) {
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converters[ conv.toLowerCase() ] = s.converters[ conv ];
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}
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}
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current = dataTypes.shift();
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// Convert to each sequential dataType
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while ( current ) {
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if ( s.responseFields[ current ] ) {
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jqXHR[ s.responseFields[ current ] ] = response;
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}
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// Apply the dataFilter if provided
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if ( !prev && isSuccess && s.dataFilter ) {
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response = s.dataFilter( response, s.dataType );
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}
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prev = current;
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current = dataTypes.shift();
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if ( current ) {
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// There's only work to do if current dataType is non-auto
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if ( current === "*" ) {
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current = prev;
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// Convert response if prev dataType is non-auto and differs from current
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} else if ( prev !== "*" && prev !== current ) {
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// Seek a direct converter
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conv = converters[ prev + " " + current ] || converters[ "* " + current ];
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// If none found, seek a pair
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if ( !conv ) {
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for ( conv2 in converters ) {
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// If conv2 outputs current
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tmp = conv2.split( " " );
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if ( tmp[ 1 ] === current ) {
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// If prev can be converted to accepted input
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conv = converters[ prev + " " + tmp[ 0 ] ] ||
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converters[ "* " + tmp[ 0 ] ];
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if ( conv ) {
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// Condense equivalence converters
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if ( conv === true ) {
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conv = converters[ conv2 ];
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// Otherwise, insert the intermediate dataType
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} else if ( converters[ conv2 ] !== true ) {
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current = tmp[ 0 ];
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dataTypes.unshift( tmp[ 1 ] );
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}
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break;
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}
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}
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}
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}
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// Apply converter (if not an equivalence)
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if ( conv !== true ) {
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// Unless errors are allowed to bubble, catch and return them
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if ( conv && s.throws ) {
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response = conv( response );
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} else {
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try {
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response = conv( response );
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} catch ( e ) {
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return {
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state: "parsererror",
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error: conv ? e : "No conversion from " + prev + " to " + current
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};
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}
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}
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}
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}
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}
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}
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return { state: "success", data: response };
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}
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jQuery.extend( {
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// Counter for holding the number of active queries
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active: 0,
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// Last-Modified header cache for next request
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lastModified: {},
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etag: {},
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ajaxSettings: {
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url: location.href,
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type: "GET",
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isLocal: rlocalProtocol.test( location.protocol ),
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global: true,
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processData: true,
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async: true,
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contentType: "application/x-www-form-urlencoded; charset=UTF-8",
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/*
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timeout: 0,
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data: null,
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dataType: null,
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username: null,
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password: null,
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cache: null,
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throws: false,
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traditional: false,
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headers: {},
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*/
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accepts: {
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"*": allTypes,
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text: "text/plain",
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html: "text/html",
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xml: "application/xml, text/xml",
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json: "application/json, text/javascript"
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},
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contents: {
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xml: /\bxml\b/,
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html: /\bhtml/,
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json: /\bjson\b/
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},
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responseFields: {
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xml: "responseXML",
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text: "responseText",
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json: "responseJSON"
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},
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// Data converters
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// Keys separate source (or catchall "*") and destination types with a single space
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converters: {
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// Convert anything to text
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"* text": String,
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// Text to html (true = no transformation)
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"text html": true,
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// Evaluate text as a json expression
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"text json": JSON.parse,
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// Parse text as xml
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"text xml": jQuery.parseXML
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},
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// For options that shouldn't be deep extended:
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// you can add your own custom options here if
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// and when you create one that shouldn't be
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// deep extended (see ajaxExtend)
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flatOptions: {
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url: true,
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context: true
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}
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},
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// Creates a full fledged settings object into target
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// with both ajaxSettings and settings fields.
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// If target is omitted, writes into ajaxSettings.
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ajaxSetup: function( target, settings ) {
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return settings ?
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// Building a settings object
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ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
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// Extending ajaxSettings
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ajaxExtend( jQuery.ajaxSettings, target );
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},
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ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
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ajaxTransport: addToPrefiltersOrTransports( transports ),
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// Main method
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ajax: function( url, options ) {
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// If url is an object, simulate pre-1.5 signature
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if ( typeof url === "object" ) {
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options = url;
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url = undefined;
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}
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// Force options to be an object
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options = options || {};
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var transport,
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// URL without anti-cache param
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cacheURL,
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// Response headers
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responseHeadersString,
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responseHeaders,
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// timeout handle
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timeoutTimer,
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// Url cleanup var
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urlAnchor,
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// Request state (becomes false upon send and true upon completion)
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completed,
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// To know if global events are to be dispatched
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fireGlobals,
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// Loop variable
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i,
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// uncached part of the url
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uncached,
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// Create the final options object
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s = jQuery.ajaxSetup( {}, options ),
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// Callbacks context
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callbackContext = s.context || s,
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// Context for global events is callbackContext if it is a DOM node or jQuery collection
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globalEventContext = s.context &&
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( callbackContext.nodeType || callbackContext.jquery ) ?
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jQuery( callbackContext ) :
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jQuery.event,
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// Deferreds
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deferred = jQuery.Deferred(),
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completeDeferred = jQuery.Callbacks( "once memory" ),
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// Status-dependent callbacks
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statusCode = s.statusCode || {},
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// Headers (they are sent all at once)
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requestHeaders = {},
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requestHeadersNames = {},
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// Default abort message
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strAbort = "canceled",
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// Fake xhr
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jqXHR = {
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readyState: 0,
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// Builds headers hashtable if needed
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getResponseHeader: function( key ) {
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var match;
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if ( completed ) {
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if ( !responseHeaders ) {
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responseHeaders = {};
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while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
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responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
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}
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}
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match = responseHeaders[ key.toLowerCase() ];
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}
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return match == null ? null : match;
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},
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// Raw string
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getAllResponseHeaders: function() {
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return completed ? responseHeadersString : null;
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},
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// Caches the header
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setRequestHeader: function( name, value ) {
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if ( completed == null ) {
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name = requestHeadersNames[ name.toLowerCase() ] =
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requestHeadersNames[ name.toLowerCase() ] || name;
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requestHeaders[ name ] = value;
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}
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return this;
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},
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// Overrides response content-type header
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overrideMimeType: function( type ) {
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if ( completed == null ) {
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s.mimeType = type;
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}
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return this;
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},
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// Status-dependent callbacks
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statusCode: function( map ) {
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var code;
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if ( map ) {
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if ( completed ) {
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// Execute the appropriate callbacks
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jqXHR.always( map[ jqXHR.status ] );
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} else {
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// Lazy-add the new callbacks in a way that preserves old ones
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for ( code in map ) {
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statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
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}
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}
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}
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return this;
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},
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// Cancel the request
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abort: function( statusText ) {
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var finalText = statusText || strAbort;
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if ( transport ) {
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transport.abort( finalText );
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}
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done( 0, finalText );
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return this;
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}
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};
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// Attach deferreds
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deferred.promise( jqXHR );
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// Add protocol if not provided (prefilters might expect it)
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// Handle falsy url in the settings object (#10093: consistency with old signature)
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// We also use the url parameter if available
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s.url = ( ( url || s.url || location.href ) + "" )
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.replace( rprotocol, location.protocol + "//" );
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// Alias method option to type as per ticket #12004
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s.type = options.method || options.type || s.method || s.type;
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// Extract dataTypes list
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s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];
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// A cross-domain request is in order when the origin doesn't match the current origin.
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if ( s.crossDomain == null ) {
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urlAnchor = document.createElement( "a" );
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// Support: IE <=8 - 11, Edge 12 - 13
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// IE throws exception on accessing the href property if url is malformed,
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// e.g. http://example.com:80x/
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try {
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urlAnchor.href = s.url;
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// Support: IE <=8 - 11 only
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// Anchor's host property isn't correctly set when s.url is relative
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urlAnchor.href = urlAnchor.href;
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s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
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urlAnchor.protocol + "//" + urlAnchor.host;
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} catch ( e ) {
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// If there is an error parsing the URL, assume it is crossDomain,
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// it can be rejected by the transport if it is invalid
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s.crossDomain = true;
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}
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}
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// Convert data if not already a string
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if ( s.data && s.processData && typeof s.data !== "string" ) {
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s.data = jQuery.param( s.data, s.traditional );
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}
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// Apply prefilters
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inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
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// If request was aborted inside a prefilter, stop there
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if ( completed ) {
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return jqXHR;
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}
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// We can fire global events as of now if asked to
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// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
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fireGlobals = jQuery.event && s.global;
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// Watch for a new set of requests
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if ( fireGlobals && jQuery.active++ === 0 ) {
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jQuery.event.trigger( "ajaxStart" );
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}
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// Uppercase the type
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s.type = s.type.toUpperCase();
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// Determine if request has content
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s.hasContent = !rnoContent.test( s.type );
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|
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// Save the URL in case we're toying with the If-Modified-Since
|
|
// and/or If-None-Match header later on
|
|
// Remove hash to simplify url manipulation
|
|
cacheURL = s.url.replace( rhash, "" );
|
|
|
|
// More options handling for requests with no content
|
|
if ( !s.hasContent ) {
|
|
|
|
// Remember the hash so we can put it back
|
|
uncached = s.url.slice( cacheURL.length );
|
|
|
|
// If data is available, append data to url
|
|
if ( s.data ) {
|
|
cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
|
|
|
|
// #9682: remove data so that it's not used in an eventual retry
|
|
delete s.data;
|
|
}
|
|
|
|
// Add or update anti-cache param if needed
|
|
if ( s.cache === false ) {
|
|
cacheURL = cacheURL.replace( rantiCache, "$1" );
|
|
uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
|
|
}
|
|
|
|
// Put hash and anti-cache on the URL that will be requested (gh-1732)
|
|
s.url = cacheURL + uncached;
|
|
|
|
// Change '%20' to '+' if this is encoded form body content (gh-2658)
|
|
} else if ( s.data && s.processData &&
|
|
( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
|
|
s.data = s.data.replace( r20, "+" );
|
|
}
|
|
|
|
// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
|
|
if ( s.ifModified ) {
|
|
if ( jQuery.lastModified[ cacheURL ] ) {
|
|
jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
|
|
}
|
|
if ( jQuery.etag[ cacheURL ] ) {
|
|
jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
|
|
}
|
|
}
|
|
|
|
// Set the correct header, if data is being sent
|
|
if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
|
|
jqXHR.setRequestHeader( "Content-Type", s.contentType );
|
|
}
|
|
|
|
// Set the Accepts header for the server, depending on the dataType
|
|
jqXHR.setRequestHeader(
|
|
"Accept",
|
|
s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
|
|
s.accepts[ s.dataTypes[ 0 ] ] +
|
|
( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
|
|
s.accepts[ "*" ]
|
|
);
|
|
|
|
// Check for headers option
|
|
for ( i in s.headers ) {
|
|
jqXHR.setRequestHeader( i, s.headers[ i ] );
|
|
}
|
|
|
|
// Allow custom headers/mimetypes and early abort
|
|
if ( s.beforeSend &&
|
|
( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
|
|
|
|
// Abort if not done already and return
|
|
return jqXHR.abort();
|
|
}
|
|
|
|
// Aborting is no longer a cancellation
|
|
strAbort = "abort";
|
|
|
|
// Install callbacks on deferreds
|
|
completeDeferred.add( s.complete );
|
|
jqXHR.done( s.success );
|
|
jqXHR.fail( s.error );
|
|
|
|
// Get transport
|
|
transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
|
|
|
|
// If no transport, we auto-abort
|
|
if ( !transport ) {
|
|
done( -1, "No Transport" );
|
|
} else {
|
|
jqXHR.readyState = 1;
|
|
|
|
// Send global event
|
|
if ( fireGlobals ) {
|
|
globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
|
|
}
|
|
|
|
// If request was aborted inside ajaxSend, stop there
|
|
if ( completed ) {
|
|
return jqXHR;
|
|
}
|
|
|
|
// Timeout
|
|
if ( s.async && s.timeout > 0 ) {
|
|
timeoutTimer = window.setTimeout( function() {
|
|
jqXHR.abort( "timeout" );
|
|
}, s.timeout );
|
|
}
|
|
|
|
try {
|
|
completed = false;
|
|
transport.send( requestHeaders, done );
|
|
} catch ( e ) {
|
|
|
|
// Rethrow post-completion exceptions
|
|
if ( completed ) {
|
|
throw e;
|
|
}
|
|
|
|
// Propagate others as results
|
|
done( -1, e );
|
|
}
|
|
}
|
|
|
|
// Callback for when everything is done
|
|
function done( status, nativeStatusText, responses, headers ) {
|
|
var isSuccess, success, error, response, modified,
|
|
statusText = nativeStatusText;
|
|
|
|
// Ignore repeat invocations
|
|
if ( completed ) {
|
|
return;
|
|
}
|
|
|
|
completed = true;
|
|
|
|
// Clear timeout if it exists
|
|
if ( timeoutTimer ) {
|
|
window.clearTimeout( timeoutTimer );
|
|
}
|
|
|
|
// Dereference transport for early garbage collection
|
|
// (no matter how long the jqXHR object will be used)
|
|
transport = undefined;
|
|
|
|
// Cache response headers
|
|
responseHeadersString = headers || "";
|
|
|
|
// Set readyState
|
|
jqXHR.readyState = status > 0 ? 4 : 0;
|
|
|
|
// Determine if successful
|
|
isSuccess = status >= 200 && status < 300 || status === 304;
|
|
|
|
// Get response data
|
|
if ( responses ) {
|
|
response = ajaxHandleResponses( s, jqXHR, responses );
|
|
}
|
|
|
|
// Convert no matter what (that way responseXXX fields are always set)
|
|
response = ajaxConvert( s, response, jqXHR, isSuccess );
|
|
|
|
// If successful, handle type chaining
|
|
if ( isSuccess ) {
|
|
|
|
// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
|
|
if ( s.ifModified ) {
|
|
modified = jqXHR.getResponseHeader( "Last-Modified" );
|
|
if ( modified ) {
|
|
jQuery.lastModified[ cacheURL ] = modified;
|
|
}
|
|
modified = jqXHR.getResponseHeader( "etag" );
|
|
if ( modified ) {
|
|
jQuery.etag[ cacheURL ] = modified;
|
|
}
|
|
}
|
|
|
|
// if no content
|
|
if ( status === 204 || s.type === "HEAD" ) {
|
|
statusText = "nocontent";
|
|
|
|
// if not modified
|
|
} else if ( status === 304 ) {
|
|
statusText = "notmodified";
|
|
|
|
// If we have data, let's convert it
|
|
} else {
|
|
statusText = response.state;
|
|
success = response.data;
|
|
error = response.error;
|
|
isSuccess = !error;
|
|
}
|
|
} else {
|
|
|
|
// Extract error from statusText and normalize for non-aborts
|
|
error = statusText;
|
|
if ( status || !statusText ) {
|
|
statusText = "error";
|
|
if ( status < 0 ) {
|
|
status = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set data for the fake xhr object
|
|
jqXHR.status = status;
|
|
jqXHR.statusText = ( nativeStatusText || statusText ) + "";
|
|
|
|
// Success/Error
|
|
if ( isSuccess ) {
|
|
deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
|
|
} else {
|
|
deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
|
|
}
|
|
|
|
// Status-dependent callbacks
|
|
jqXHR.statusCode( statusCode );
|
|
statusCode = undefined;
|
|
|
|
if ( fireGlobals ) {
|
|
globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
|
|
[ jqXHR, s, isSuccess ? success : error ] );
|
|
}
|
|
|
|
// Complete
|
|
completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
|
|
|
|
if ( fireGlobals ) {
|
|
globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
|
|
|
|
// Handle the global AJAX counter
|
|
if ( !( --jQuery.active ) ) {
|
|
jQuery.event.trigger( "ajaxStop" );
|
|
}
|
|
}
|
|
}
|
|
|
|
return jqXHR;
|
|
},
|
|
|
|
getJSON: function( url, data, callback ) {
|
|
return jQuery.get( url, data, callback, "json" );
|
|
},
|
|
|
|
getScript: function( url, callback ) {
|
|
return jQuery.get( url, undefined, callback, "script" );
|
|
}
|
|
} );
|
|
|
|
jQuery.each( [ "get", "post" ], function( i, method ) {
|
|
jQuery[ method ] = function( url, data, callback, type ) {
|
|
|
|
// Shift arguments if data argument was omitted
|
|
if ( jQuery.isFunction( data ) ) {
|
|
type = type || callback;
|
|
callback = data;
|
|
data = undefined;
|
|
}
|
|
|
|
// The url can be an options object (which then must have .url)
|
|
return jQuery.ajax( jQuery.extend( {
|
|
url: url,
|
|
type: method,
|
|
dataType: type,
|
|
data: data,
|
|
success: callback
|
|
}, jQuery.isPlainObject( url ) && url ) );
|
|
};
|
|
} );
|
|
|
|
return jQuery;
|
|
} );
|