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/** global: GLSR, XMLHttpRequest */ |
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;(function() { |
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'use strict'; |
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var Ajax = function() { |
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this.get = this.get_; |
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this.isFileAPISupported = this.isFileAPISupported_; |
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this.isFormDataSupported = this.isFormDataSupported_; |
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this.isUploadSupported = this.isUploadSupported_; |
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this.post = this.post_; |
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}; |
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Ajax.prototype = { |
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/** @return void */ |
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get_: function( url, successCallback, headers ) { |
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this.xhr = new XMLHttpRequest(); |
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this.xhr.open( 'GET', url ); |
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this.xhr.onreadystatechange = function() { |
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if( this.xhr.readyState !== 4 || this.xhr.status !== 200 )return; |
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successCallback( this.xhr.responseText ); |
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}.bind( this ); |
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this.setHeaders_( headers ); |
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this.xhr.send(); |
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}, |
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/** @return bool */ |
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isFileAPISupported_: function() { |
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var input = document.createElement( 'INPUT' ); |
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input.type = 'file'; |
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return 'files' in input; |
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}, |
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/** @return bool */ |
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isFormDataSupported_: function() { |
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return !!window.FormData; |
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}, |
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/** @return bool */ |
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isUploadSupported_: function() { |
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var xhr = new XMLHttpRequest(); |
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return !!( xhr && ( 'upload' in xhr ) && ( 'onprogress' in xhr.upload )); |
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}, |
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/** @return FormData */ |
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buildFormData_: function( formData, data, parentKey ) { |
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if( typeof data !== 'object' || data instanceof Date || data instanceof File ) { |
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formData.append( parentKey, data || '' ); |
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} |
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else { |
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Object.keys( data ).forEach( function( key ) { |
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if( !data.hasOwnProperty( key ))return; |
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formData = this.buildFormData_( formData, data[key], parentKey ? parentKey[key] : key ); |
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}.bind( this )); |
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} |
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return formData; |
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}, |
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/** @return FormData */ |
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normalizeData_: function( data ) { // object |
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var formData = new FormData( data ); |
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if( Object.prototype.toString.call( data ) !== '[object HTMLFormElement]' ) { |
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formData = this.buildFormData_( formData, data ); |
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} |
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formData.append( 'action', GLSR.action ); |
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formData.append( 'ajax_request', true ); |
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return formData; |
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}, |
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/** @return void */ |
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post_: function( formOrData, successCallback, headers ) { |
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this.xhr = new XMLHttpRequest(); |
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this.xhr.open( 'POST', GLSR.ajaxurl ); |
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this.setHeaders_( headers ); |
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this.xhr.send( this.normalizeData_( formOrData )); |
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this.xhr.onreadystatechange = function() { |
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if( this.xhr.readyState !== XMLHttpRequest.DONE || this.xhr.status !== 200 )return; |
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successCallback( JSON.parse( this.xhr.responseText )); |
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}.bind( this ); |
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}, |
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/** @return void */ |
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setHeaders_: function( headers ) { |
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headers = headers || {}; |
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headers['X-Requested-With'] = 'XMLHttpRequest'; |
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for( var key in headers ) { |
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if( !headers.hasOwnProperty( key ))continue; |
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this.xhr.setRequestHeader( key, headers[key] ); |
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} |
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}, |
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}; |
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GLSR.Ajax = Ajax; |
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})(); |
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pryley /
site-reviews
This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.
To learn more about declaring variables in Javascript, see the MDN.