/*! * # Semantic UI 2.2.7 - API * http://github.com/semantic-org/semantic-ui/ * * * Released under the MIT license * http://opensource.org/licenses/MIT * */ ;(function ($, window, document, undefined) { "use strict"; var window = (typeof window != 'undefined' && window.Math == Math) ? window : (typeof self != 'undefined' && self.Math == Math) ? self : Function('return this')() ; $.api = $.fn.api = function(parameters) { var // use window context if none specified $allModules = $.isFunction(this) ? $(window) : $(this), moduleSelector = $allModules.selector || '', time = new Date().getTime(), performance = [], query = arguments[0], methodInvoked = (typeof query == 'string'), queryArguments = [].slice.call(arguments, 1), returnedValue ; $allModules .each(function() { var settings = ( $.isPlainObject(parameters) ) ? $.extend(true, {}, $.fn.api.settings, parameters) : $.extend({}, $.fn.api.settings), // internal aliases namespace = settings.namespace, metadata = settings.metadata, selector = settings.selector, error = settings.error, className = settings.className, // define namespaces for modules eventNamespace = '.' + namespace, moduleNamespace = 'module-' + namespace, // element that creates request $module = $(this), $form = $module.closest(selector.form), // context used for state $context = (settings.stateContext) ? $(settings.stateContext) : $module, // request details ajaxSettings, requestSettings, url, data, requestStartTime, // standard module element = this, context = $context[0], instance = $module.data(moduleNamespace), module ; module = { initialize: function() { if(!methodInvoked) { module.bind.events(); } module.instantiate(); }, instantiate: function() { module.verbose('Storing instance of module', module); instance = module; $module .data(moduleNamespace, instance) ; }, destroy: function() { module.verbose('Destroying previous module for', element); $module .removeData(moduleNamespace) .off(eventNamespace) ; }, bind: { events: function() { var triggerEvent = module.get.event() ; if( triggerEvent ) { module.verbose('Attaching API events to element', triggerEvent); $module .on(triggerEvent + eventNamespace, module.event.trigger) ; } else if(settings.on == 'now') { module.debug('Querying API endpoint immediately'); module.query(); } } }, decode: { json: function(response) { if(response !== undefined && typeof response == 'string') { try { response = JSON.parse(response); } catch(e) { // isnt json string } } return response; } }, read: { cachedResponse: function(url) { var response ; if(window.Storage === undefined) { module.error(error.noStorage); return; } response = sessionStorage.getItem(url); module.debug('Using cached response', url, response); response = module.decode.json(response); return response; } }, write: { cachedResponse: function(url, response) { if(response && response === '') { module.debug('Response empty, not caching', response); return; } if(window.Storage === undefined) { module.error(error.noStorage); return; } if( $.isPlainObject(response) ) { response = JSON.stringify(response); } sessionStorage.setItem(url, response); module.verbose('Storing cached response for url', url, response); } }, query: function() { if(module.is.disabled()) { module.debug('Element is disabled API request aborted'); return; } if(module.is.loading()) { if(settings.interruptRequests) { module.debug('Interrupting previous request'); module.abort(); } else { module.debug('Cancelling request, previous request is still pending'); return; } } // pass element metadata to url (value, text) if(settings.defaultData) { $.extend(true, settings.urlData, module.get.defaultData()); } // Add form content if(settings.serializeForm) { settings.data = module.add.formData(settings.data); } // call beforesend and get any settings changes requestSettings = module.get.settings(); // check if before send cancelled request if(requestSettings === false) { module.cancelled = true; module.error(error.beforeSend); return; } else { module.cancelled = false; } // get url url = module.get.templatedURL(); if(!url && !module.is.mocked()) { module.error(error.missingURL); return; } // replace variables url = module.add.urlData( url ); // missing url parameters if( !url && !module.is.mocked()) { return; } requestSettings.url = settings.base + url; // look for jQuery ajax parameters in settings ajaxSettings = $.extend(true, {}, settings, { type : settings.method || settings.type, data : data, url : settings.base + url, beforeSend : settings.beforeXHR, success : function() {}, failure : function() {}, complete : function() {} }); module.debug('Querying URL', ajaxSettings.url); module.verbose('Using AJAX settings', ajaxSettings); if(settings.cache === 'local' && module.read.cachedResponse(url)) { module.debug('Response returned from local cache'); module.request = module.create.request(); module.request.resolveWith(context, [ module.read.cachedResponse(url) ]); return; } if( !settings.throttle ) { module.debug('Sending request', data, ajaxSettings.method); module.send.request(); } else { if(!settings.throttleFirstRequest && !module.timer) { module.debug('Sending request', data, ajaxSettings.method); module.send.request(); module.timer = setTimeout(function(){}, settings.throttle); } else { module.debug('Throttling request', settings.throttle); clearTimeout(module.timer); module.timer = setTimeout(function() { if(module.timer) { delete module.timer; } module.debug('Sending throttled request', data, ajaxSettings.method); module.send.request(); }, settings.throttle); } } }, should: { removeError: function() { return ( settings.hideError === true || (settings.hideError === 'auto' && !module.is.form()) ); } }, is: { disabled: function() { return ($module.filter(selector.disabled).length > 0); }, expectingJSON: function() { return settings.dataType === 'json' || settings.dataType === 'jsonp'; }, form: function() { return $module.is('form') || $context.is('form'); }, mocked: function() { return (settings.mockResponse || settings.mockResponseAsync || settings.response || settings.responseAsync); }, input: function() { return $module.is('input'); }, loading: function() { return (module.request) ? (module.request.state() == 'pending') : false ; }, abortedRequest: function(xhr) { if(xhr && xhr.readyState !== undefined && xhr.readyState === 0) { module.verbose('XHR request determined to be aborted'); return true; } else { module.verbose('XHR request was not aborted'); return false; } }, validResponse: function(response) { if( (!module.is.expectingJSON()) || !$.isFunction(settings.successTest) ) { module.verbose('Response is not JSON, skipping validation', settings.successTest, response); return true; } module.debug('Checking JSON returned success', settings.successTest, response); if( settings.successTest(response) ) { module.debug('Response passed success test', response); return true; } else { module.debug('Response failed success test', response); return false; } } }, was: { cancelled: function() { return (module.cancelled || false); }, succesful: function() { return (module.request && module.request.state() == 'resolved'); }, failure: function() { return (module.request && module.request.state() == 'rejected'); }, complete: function() { return (module.request && (module.request.state() == 'resolved' || module.request.state() == 'rejected') ); } }, add: { urlData: function(url, urlData) { var requiredVariables, optionalVariables ; if(url) { requiredVariables = url.match(settings.regExp.required); optionalVariables = url.match(settings.regExp.optional); urlData = urlData || settings.urlData; if(requiredVariables) { module.debug('Looking for required URL variables', requiredVariables); $.each(requiredVariables, function(index, templatedString) { var // allow legacy {$var} style variable = (templatedString.indexOf('$') !== -1) ? templatedString.substr(2, templatedString.length - 3) : templatedString.substr(1, templatedString.length - 2), value = ($.isPlainObject(urlData) && urlData[variable] !== undefined) ? urlData[variable] : ($module.data(variable) !== undefined) ? $module.data(variable) : ($context.data(variable) !== undefined) ? $context.data(variable) : urlData[variable] ; // remove value if(value === undefined) { module.error(error.requiredParameter, variable, url); url = false; return false; } else { module.verbose('Found required variable', variable, value); value = (settings.encodeParameters) ? module.get.urlEncodedValue(value) : value ; url = url.replace(templatedString, value); } }); } if(optionalVariables) { module.debug('Looking for optional URL variables', requiredVariables); $.each(optionalVariables, function(index, templatedString) { var // allow legacy {/$var} style variable = (templatedString.indexOf('$') !== -1) ? templatedString.substr(3, templatedString.length - 4) : templatedString.substr(2, templatedString.length - 3), value = ($.isPlainObject(urlData) && urlData[variable] !== undefined) ? urlData[variable] : ($module.data(variable) !== undefined) ? $module.data(variable) : ($context.data(variable) !== undefined) ? $context.data(variable) : urlData[variable] ; // optional replacement if(value !== undefined) { module.verbose('Optional variable Found', variable, value); url = url.replace(templatedString, value); } else { module.verbose('Optional variable not found', variable); // remove preceding slash if set if(url.indexOf('/' + templatedString) !== -1) { url = url.replace('/' + templatedString, ''); } else { url = url.replace(templatedString, ''); } } }); } } return url; }, formData: function(data) { var canSerialize = ($.fn.serializeObject !== undefined), formData = (canSerialize) ? $form.serializeObject() : $form.serialize(), hasOtherData ; data = data || settings.data; hasOtherData = $.isPlainObject(data); if(hasOtherData) { if(canSerialize) { module.debug('Extending existing data with form data', data, formData); data = $.extend(true, {}, data, formData); } else { module.error(error.missingSerialize); module.debug('Cant extend data. Replacing data with form data', data, formData); data = formData; } } else { module.debug('Adding form data', formData); data = formData; } return data; } }, send: { request: function() { module.set.loading(); module.request = module.create.request(); if( module.is.mocked() ) { module.mockedXHR = module.create.mockedXHR(); } else { module.xhr = module.create.xhr(); } settings.onRequest.call(context, module.request, module.xhr); } }, event: { trigger: function(event) { module.query(); if(event.type == 'submit' || event.type == 'click') { event.preventDefault(); } }, xhr: { always: function() { // nothing special }, done: function(response, textStatus, xhr) { var context = this, elapsedTime = (new Date().getTime() - requestStartTime), timeLeft = (settings.loadingDuration - elapsedTime), translatedResponse = ( $.isFunction(settings.onResponse) ) ? module.is.expectingJSON() ? settings.onResponse.call(context, $.extend(true, {}, response)) : settings.onResponse.call(context, response) : false ; timeLeft = (timeLeft > 0) ? timeLeft : 0 ; if(translatedResponse) { module.debug('Modified API response in onResponse callback', settings.onResponse, translatedResponse, response); response = translatedResponse; } if(timeLeft > 0) { module.debug('Response completed early delaying state change by', timeLeft); } setTimeout(function() { if( module.is.validResponse(response) ) { module.request.resolveWith(context, [response, xhr]); } else { module.request.rejectWith(context, [xhr, 'invalid']); } }, timeLeft); }, fail: function(xhr, status, httpMessage) { var context = this, elapsedTime = (new Date().getTime() - requestStartTime), timeLeft = (settings.loadingDuration - elapsedTime) ; timeLeft = (timeLeft > 0) ? timeLeft : 0 ; if(timeLeft > 0) { module.debug('Response completed early delaying state change by', timeLeft); } setTimeout(function() { if( module.is.abortedRequest(xhr) ) { module.request.rejectWith(context, [xhr, 'aborted', httpMessage]); } else { module.request.rejectWith(context, [xhr, 'error', status, httpMessage]); } }, timeLeft); } }, request: { done: function(response, xhr) { module.debug('Successful API Response', response); if(settings.cache === 'local' && url) { module.write.cachedResponse(url, response); module.debug('Saving server response locally', module.cache); } settings.onSuccess.call(context, response, $module, xhr); }, complete: function(firstParameter, secondParameter) { var xhr, response ; // have to guess callback parameters based on request success if( module.was.succesful() ) { response = firstParameter; xhr = secondParameter; } else { xhr = firstParameter; response = module.get.responseFromXHR(xhr); } module.remove.loading(); settings.onComplete.call(context, response, $module, xhr); }, fail: function(xhr, status, httpMessage) { var // pull response from xhr if available response = module.get.responseFromXHR(xhr), errorMessage = module.get.errorFromRequest(response, status, httpMessage) ; if(status == 'aborted') { module.debug('XHR Aborted (Most likely caused by page navigation or CORS Policy)', status, httpMessage); settings.onAbort.call(context, status, $module, xhr); return true; } else if(status == 'invalid') { module.debug('JSON did not pass success test. A server-side error has most likely occurred', response); } else if(status == 'error') { if(xhr !== undefined) { module.debug('XHR produced a server error', status, httpMessage); // make sure we have an error to display to console if( xhr.status != 200 && httpMessage !== undefined && httpMessage !== '') { module.error(error.statusMessage + httpMessage, ajaxSettings.url); } settings.onError.call(context, errorMessage, $module, xhr); } } if(settings.errorDuration && status !== 'aborted') { module.debug('Adding error state'); module.set.error(); if( module.should.removeError() ) { setTimeout(module.remove.error, settings.errorDuration); } } module.debug('API Request failed', errorMessage, xhr); settings.onFailure.call(context, response, $module, xhr); } } }, create: { request: function() { // api request promise return $.Deferred() .always(module.event.request.complete) .done(module.event.request.done) .fail(module.event.request.fail) ; }, mockedXHR: function () { var // xhr does not simulate these properties of xhr but must return them textStatus = false, status = false, httpMessage = false, responder = settings.mockResponse || settings.response, asyncResponder = settings.mockResponseAsync || settings.responseAsync, asyncCallback, response, mockedXHR ; mockedXHR = $.Deferred() .always(module.event.xhr.complete) .done(module.event.xhr.done) .fail(module.event.xhr.fail) ; if(responder) { if( $.isFunction(responder) ) { module.debug('Using specified synchronous callback', responder); response = responder.call(context, requestSettings); } else { module.debug('Using settings specified response', responder); response = responder; } // simulating response mockedXHR.resolveWith(context, [ response, textStatus, { responseText: response }]); } else if( $.isFunction(asyncResponder) ) { asyncCallback = function(response) { module.debug('Async callback returned response', response); if(response) { mockedXHR.resolveWith(context, [ response, textStatus, { responseText: response }]); } else { mockedXHR.rejectWith(context, [{ responseText: response }, status, httpMessage]); } }; module.debug('Using specified async response callback', asyncResponder); asyncResponder.call(context, requestSettings, asyncCallback); } return mockedXHR; }, xhr: function() { var xhr ; // ajax request promise xhr = $.ajax(ajaxSettings) .always(module.event.xhr.always) .done(module.event.xhr.done) .fail(module.event.xhr.fail) ; module.verbose('Created server request', xhr, ajaxSettings); return xhr; } }, set: { error: function() { module.verbose('Adding error state to element', $context); $context.addClass(className.error); }, loading: function() { module.verbose('Adding loading state to element', $context); $context.addClass(className.loading); requestStartTime = new Date().getTime(); } }, remove: { error: function() { module.verbose('Removing error state from element', $context); $context.removeClass(className.error); }, loading: function() { module.verbose('Removing loading state from element', $context); $context.removeClass(className.loading); } }, get: { responseFromXHR: function(xhr) { return $.isPlainObject(xhr) ? (module.is.expectingJSON()) ? module.decode.json(xhr.responseText) : xhr.responseText : false ; }, errorFromRequest: function(response, status, httpMessage) { return ($.isPlainObject(response) && response.error !== undefined) ? response.error // use json error message : (settings.error[status] !== undefined) // use server error message ? settings.error[status] : httpMessage ; }, request: function() { return module.request || false; }, xhr: function() { return module.xhr || false; }, settings: function() { var runSettings ; runSettings = settings.beforeSend.call(context, settings); if(runSettings) { if(runSettings.success !== undefined) { module.debug('Legacy success callback detected', runSettings); module.error(error.legacyParameters, runSettings.success); runSettings.onSuccess = runSettings.success; } if(runSettings.failure !== undefined) { module.debug('Legacy failure callback detected', runSettings); module.error(error.legacyParameters, runSettings.failure); runSettings.onFailure = runSettings.failure; } if(runSettings.complete !== undefined) { module.debug('Legacy complete callback detected', runSettings); module.error(error.legacyParameters, runSettings.complete); runSettings.onComplete = runSettings.complete; } } if(runSettings === undefined) { module.error(error.noReturnedValue); } if(runSettings === false) { return runSettings; } return (runSettings !== undefined) ? $.extend(true, {}, runSettings) : $.extend(true, {}, settings) ; }, urlEncodedValue: function(value) { var decodedValue = window.decodeURIComponent(value), encodedValue = window.encodeURIComponent(value), alreadyEncoded = (decodedValue !== value) ; if(alreadyEncoded) { module.debug('URL value is already encoded, avoiding double encoding', value); return value; } module.verbose('Encoding value using encodeURIComponent', value, encodedValue); return encodedValue; }, defaultData: function() { var data = {} ; if( !$.isWindow(element) ) { if( module.is.input() ) { data.value = $module.val(); } else if( module.is.form() ) { } else { data.text = $module.text(); } } return data; }, event: function() { if( $.isWindow(element) || settings.on == 'now' ) { module.debug('API called without element, no events attached'); return false; } else if(settings.on == 'auto') { if( $module.is('input') ) { return (element.oninput !== undefined) ? 'input' : (element.onpropertychange !== undefined) ? 'propertychange' : 'keyup' ; } else if( $module.is('form') ) { return 'submit'; } else { return 'click'; } } else { return settings.on; } }, templatedURL: function(action) { action = action || $module.data(metadata.action) || settings.action || false; url = $module.data(metadata.url) || settings.url || false; if(url) { module.debug('Using specified url', url); return url; } if(action) { module.debug('Looking up url for action', action, settings.api); if(settings.api[action] === undefined && !module.is.mocked()) { module.error(error.missingAction, settings.action, settings.api); return; } url = settings.api[action]; } else if( module.is.form() ) { url = $module.attr('action') || $context.attr('action') || false; module.debug('No url or action specified, defaulting to form action', url); } return url; } }, abort: function() { var xhr = module.get.xhr() ; if( xhr && xhr.state() !== 'resolved') { module.debug('Cancelling API request'); xhr.abort(); } }, // reset state reset: function() { module.remove.error(); module.remove.loading(); }, setting: function(name, value) { module.debug('Changing setting', name, value); if( $.isPlainObject(name) ) { $.extend(true, settings, name); } else if(value !== undefined) { if($.isPlainObject(settings[name])) { $.extend(true, settings[name], value); } else { settings[name] = value; } } else { return settings[name]; } }, internal: function(name, value) { if( $.isPlainObject(name) ) { $.extend(true, module, name); } else if(value !== undefined) { module[name] = value; } else { return module[name]; } }, debug: function() { if(!settings.silent && settings.debug) { if(settings.performance) { module.performance.log(arguments); } else { module.debug = Function.prototype.bind.call(console.info, console, settings.name + ':'); module.debug.apply(console, arguments); } } }, verbose: function() { if(!settings.silent && settings.verbose && settings.debug) { if(settings.performance) { module.performance.log(arguments); } else { module.verbose = Function.prototype.bind.call(console.info, console, settings.name + ':'); module.verbose.apply(console, arguments); } } }, error: function() { if(!settings.silent) { module.error = Function.prototype.bind.call(console.error, console, settings.name + ':'); module.error.apply(console, arguments); } }, performance: { log: function(message) { var currentTime, executionTime, previousTime ; if(settings.performance) { currentTime = new Date().getTime(); previousTime = time || currentTime; executionTime = currentTime - previousTime; time = currentTime; performance.push({ 'Name' : message[0], 'Arguments' : [].slice.call(message, 1) || '', //'Element' : element, 'Execution Time' : executionTime }); } clearTimeout(module.performance.timer); module.performance.timer = setTimeout(module.performance.display, 500); }, display: function() { var title = settings.name + ':', totalTime = 0 ; time = false; clearTimeout(module.performance.timer); $.each(performance, function(index, data) { totalTime += data['Execution Time']; }); title += ' ' + totalTime + 'ms'; if(moduleSelector) { title += ' \'' + moduleSelector + '\''; } if( (console.group !== undefined || console.table !== undefined) && performance.length > 0) { console.groupCollapsed(title); if(console.table) { console.table(performance); } else { $.each(performance, function(index, data) { console.log(data['Name'] + ': ' + data['Execution Time']+'ms'); }); } console.groupEnd(); } performance = []; } }, invoke: function(query, passedArguments, context) { var object = instance, maxDepth, found, response ; passedArguments = passedArguments || queryArguments; context = element || context; if(typeof query == 'string' && object !== undefined) { query = query.split(/[\. ]/); maxDepth = query.length - 1; $.each(query, function(depth, value) { var camelCaseValue = (depth != maxDepth) ? value + query[depth + 1].charAt(0).toUpperCase() + query[depth + 1].slice(1) : query ; if( $.isPlainObject( object[camelCaseValue] ) && (depth != maxDepth) ) { object = object[camelCaseValue]; } else if( object[camelCaseValue] !== undefined ) { found = object[camelCaseValue]; return false; } else if( $.isPlainObject( object[value] ) && (depth != maxDepth) ) { object = object[value]; } else if( object[value] !== undefined ) { found = object[value]; return false; } else { module.error(error.method, query); return false; } }); } if ( $.isFunction( found ) ) { response = found.apply(context, passedArguments); } else if(found !== undefined) { response = found; } if($.isArray(returnedValue)) { returnedValue.push(response); } else if(returnedValue !== undefined) { returnedValue = [returnedValue, response]; } else if(response !== undefined) { returnedValue = response; } return found; } }; if(methodInvoked) { if(instance === undefined) { module.initialize(); } module.invoke(query); } else { if(instance !== undefined) { instance.invoke('destroy'); } module.initialize(); } }) ; return (returnedValue !== undefined) ? returnedValue : this ; }; $.api.settings = { name : 'API', namespace : 'api', debug : false, verbose : false, performance : true, // object containing all templates endpoints api : {}, // whether to cache responses cache : true, // whether new requests should abort previous requests interruptRequests : true, // event binding on : 'auto', // context for applying state classes stateContext : false, // duration for loading state loadingDuration : 0, // whether to hide errors after a period of time hideError : 'auto', // duration for error state errorDuration : 2000, // whether parameters should be encoded with encodeURIComponent encodeParameters : true, // API action to use action : false, // templated URL to use url : false, // base URL to apply to all endpoints base : '', // data that will urlData : {}, // whether to add default data to url data defaultData : true, // whether to serialize closest form serializeForm : false, // how long to wait before request should occur throttle : 0, // whether to throttle first request or only repeated throttleFirstRequest : true, // standard ajax settings method : 'get', data : {}, dataType : 'json', // mock response mockResponse : false, mockResponseAsync : false, // aliases for mock response : false, responseAsync : false, // callbacks before request beforeSend : function(settings) { return settings; }, beforeXHR : function(xhr) {}, onRequest : function(promise, xhr) {}, // after request onResponse : false, // function(response) { }, // response was successful, if JSON passed validation onSuccess : function(response, $module) {}, // request finished without aborting onComplete : function(response, $module) {}, // failed JSON success test onFailure : function(response, $module) {}, // server error onError : function(errorMessage, $module) {}, // request aborted onAbort : function(errorMessage, $module) {}, successTest : false, // errors error : { beforeSend : 'The before send function has aborted the request', error : 'There was an error with your request', exitConditions : 'API Request Aborted. Exit conditions met', JSONParse : 'JSON could not be parsed during error handling', legacyParameters : 'You are using legacy API success callback names', method : 'The method you called is not defined', missingAction : 'API action used but no url was defined', missingSerialize : 'jquery-serialize-object is required to add form data to an existing data object', missingURL : 'No URL specified for api event', noReturnedValue : 'The beforeSend callback must return a settings object, beforeSend ignored.', noStorage : 'Caching responses locally requires session storage', parseError : 'There was an error parsing your request', requiredParameter : 'Missing a required URL parameter: ', statusMessage : 'Server gave an error: ', timeout : 'Your request timed out' }, regExp : { required : /\{\$*[A-z0-9]+\}/g, optional : /\{\/\$*[A-z0-9]+\}/g, }, className: { loading : 'loading', error : 'error' }, selector: { disabled : '.disabled', form : 'form' }, metadata: { action : 'action', url : 'url' } }; })( jQuery, window, document );