384 lines
14 KiB
JavaScript
384 lines
14 KiB
JavaScript
// Zepto.js
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// (c) 2010-2016 Thomas Fuchs
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// Zepto.js may be freely distributed under the MIT license.
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;(function($){
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var jsonpID = +new Date(),
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document = window.document,
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key,
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name,
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rscript = /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi,
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scriptTypeRE = /^(?:text|application)\/javascript/i,
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xmlTypeRE = /^(?:text|application)\/xml/i,
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jsonType = 'application/json',
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htmlType = 'text/html',
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blankRE = /^\s*$/,
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originAnchor = document.createElement('a')
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originAnchor.href = window.location.href
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// trigger a custom event and return false if it was cancelled
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function triggerAndReturn(context, eventName, data) {
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var event = $.Event(eventName)
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$(context).trigger(event, data)
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return !event.isDefaultPrevented()
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}
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// trigger an Ajax "global" event
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function triggerGlobal(settings, context, eventName, data) {
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if (settings.global) return triggerAndReturn(context || document, eventName, data)
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}
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// Number of active Ajax requests
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$.active = 0
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function ajaxStart(settings) {
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if (settings.global && $.active++ === 0) triggerGlobal(settings, null, 'ajaxStart')
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}
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function ajaxStop(settings) {
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if (settings.global && !(--$.active)) triggerGlobal(settings, null, 'ajaxStop')
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}
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// triggers an extra global event "ajaxBeforeSend" that's like "ajaxSend" but cancelable
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function ajaxBeforeSend(xhr, settings) {
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var context = settings.context
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if (settings.beforeSend.call(context, xhr, settings) === false ||
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triggerGlobal(settings, context, 'ajaxBeforeSend', [xhr, settings]) === false)
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return false
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triggerGlobal(settings, context, 'ajaxSend', [xhr, settings])
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}
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function ajaxSuccess(data, xhr, settings, deferred) {
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var context = settings.context, status = 'success'
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settings.success.call(context, data, status, xhr)
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if (deferred) deferred.resolveWith(context, [data, status, xhr])
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triggerGlobal(settings, context, 'ajaxSuccess', [xhr, settings, data])
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ajaxComplete(status, xhr, settings)
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}
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// type: "timeout", "error", "abort", "parsererror"
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function ajaxError(error, type, xhr, settings, deferred) {
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var context = settings.context
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settings.error.call(context, xhr, type, error)
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if (deferred) deferred.rejectWith(context, [xhr, type, error])
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triggerGlobal(settings, context, 'ajaxError', [xhr, settings, error || type])
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ajaxComplete(type, xhr, settings)
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}
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// status: "success", "notmodified", "error", "timeout", "abort", "parsererror"
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function ajaxComplete(status, xhr, settings) {
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var context = settings.context
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settings.complete.call(context, xhr, status)
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triggerGlobal(settings, context, 'ajaxComplete', [xhr, settings])
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ajaxStop(settings)
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}
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function ajaxDataFilter(data, type, settings) {
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if (settings.dataFilter == empty) return data
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var context = settings.context
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return settings.dataFilter.call(context, data, type)
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}
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// Empty function, used as default callback
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function empty() {}
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$.ajaxJSONP = function(options, deferred){
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if (!('type' in options)) return $.ajax(options)
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var _callbackName = options.jsonpCallback,
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callbackName = ($.isFunction(_callbackName) ?
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_callbackName() : _callbackName) || ('Zepto' + (jsonpID++)),
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script = document.createElement('script'),
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originalCallback = window[callbackName],
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responseData,
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abort = function(errorType) {
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$(script).triggerHandler('error', errorType || 'abort')
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},
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xhr = { abort: abort }, abortTimeout
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if (deferred) deferred.promise(xhr)
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$(script).on('load error', function(e, errorType){
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clearTimeout(abortTimeout)
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$(script).off().remove()
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if (e.type == 'error' || !responseData) {
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ajaxError(null, errorType || 'error', xhr, options, deferred)
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} else {
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ajaxSuccess(responseData[0], xhr, options, deferred)
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}
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window[callbackName] = originalCallback
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if (responseData && $.isFunction(originalCallback))
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originalCallback(responseData[0])
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originalCallback = responseData = undefined
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})
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if (ajaxBeforeSend(xhr, options) === false) {
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abort('abort')
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return xhr
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}
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window[callbackName] = function(){
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responseData = arguments
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}
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script.src = options.url.replace(/\?(.+)=\?/, '?$1=' + callbackName)
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document.head.appendChild(script)
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if (options.timeout > 0) abortTimeout = setTimeout(function(){
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abort('timeout')
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}, options.timeout)
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return xhr
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}
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$.ajaxSettings = {
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// Default type of request
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type: 'GET',
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// Callback that is executed before request
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beforeSend: empty,
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// Callback that is executed if the request succeeds
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success: empty,
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// Callback that is executed the the server drops error
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error: empty,
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// Callback that is executed on request complete (both: error and success)
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complete: empty,
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// The context for the callbacks
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context: null,
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// Whether to trigger "global" Ajax events
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global: true,
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// Transport
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xhr: function () {
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return new window.XMLHttpRequest()
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},
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// MIME types mapping
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// IIS returns Javascript as "application/x-javascript"
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accepts: {
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script: 'text/javascript, application/javascript, application/x-javascript',
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json: jsonType,
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xml: 'application/xml, text/xml',
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html: htmlType,
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text: 'text/plain'
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},
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// Whether the request is to another domain
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crossDomain: false,
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// Default timeout
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timeout: 0,
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// Whether data should be serialized to string
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processData: true,
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// Whether the browser should be allowed to cache GET responses
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cache: true,
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//Used to handle the raw response data of XMLHttpRequest.
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//This is a pre-filtering function to sanitize the response.
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//The sanitized response should be returned
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dataFilter: empty
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}
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function mimeToDataType(mime) {
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if (mime) mime = mime.split(';', 2)[0]
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return mime && ( mime == htmlType ? 'html' :
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mime == jsonType ? 'json' :
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scriptTypeRE.test(mime) ? 'script' :
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xmlTypeRE.test(mime) && 'xml' ) || 'text'
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}
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function appendQuery(url, query) {
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if (query == '') return url
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return (url + '&' + query).replace(/[&?]{1,2}/, '?')
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}
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// serialize payload and append it to the URL for GET requests
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function serializeData(options) {
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if (options.processData && options.data && $.type(options.data) != "string")
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options.data = $.param(options.data, options.traditional)
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if (options.data && (!options.type || options.type.toUpperCase() == 'GET' || 'jsonp' == options.dataType))
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options.url = appendQuery(options.url, options.data), options.data = undefined
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}
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$.ajax = function(options){
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var settings = $.extend({}, options || {}),
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deferred = $.Deferred && $.Deferred(),
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urlAnchor, hashIndex
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for (key in $.ajaxSettings) if (settings[key] === undefined) settings[key] = $.ajaxSettings[key]
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ajaxStart(settings)
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if (!settings.crossDomain) {
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urlAnchor = document.createElement('a')
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urlAnchor.href = settings.url
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// cleans up URL for .href (IE only), see https://github.com/madrobby/zepto/pull/1049
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urlAnchor.href = urlAnchor.href
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settings.crossDomain = (originAnchor.protocol + '//' + originAnchor.host) !== (urlAnchor.protocol + '//' + urlAnchor.host)
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}
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if (!settings.url) settings.url = window.location.toString()
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if ((hashIndex = settings.url.indexOf('#')) > -1) settings.url = settings.url.slice(0, hashIndex)
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serializeData(settings)
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var dataType = settings.dataType, hasPlaceholder = /\?.+=\?/.test(settings.url)
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if (hasPlaceholder) dataType = 'jsonp'
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if (settings.cache === false || (
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(!options || options.cache !== true) &&
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('script' == dataType || 'jsonp' == dataType)
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))
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settings.url = appendQuery(settings.url, '_=' + Date.now())
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if ('jsonp' == dataType) {
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if (!hasPlaceholder)
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settings.url = appendQuery(settings.url,
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settings.jsonp ? (settings.jsonp + '=?') : settings.jsonp === false ? '' : 'callback=?')
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return $.ajaxJSONP(settings, deferred)
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}
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var mime = settings.accepts[dataType],
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headers = { },
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setHeader = function(name, value) { headers[name.toLowerCase()] = [name, value] },
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protocol = /^([\w-]+:)\/\//.test(settings.url) ? RegExp.$1 : window.location.protocol,
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xhr = settings.xhr(),
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nativeSetHeader = xhr.setRequestHeader,
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abortTimeout
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if (deferred) deferred.promise(xhr)
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if (!settings.crossDomain) setHeader('X-Requested-With', 'XMLHttpRequest')
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setHeader('Accept', mime || '*/*')
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if (mime = settings.mimeType || mime) {
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if (mime.indexOf(',') > -1) mime = mime.split(',', 2)[0]
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xhr.overrideMimeType && xhr.overrideMimeType(mime)
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}
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if (settings.contentType || (settings.contentType !== false && settings.data && settings.type.toUpperCase() != 'GET'))
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setHeader('Content-Type', settings.contentType || 'application/x-www-form-urlencoded')
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if (settings.headers) for (name in settings.headers) setHeader(name, settings.headers[name])
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xhr.setRequestHeader = setHeader
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xhr.onreadystatechange = function(){
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if (xhr.readyState == 4) {
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xhr.onreadystatechange = empty
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clearTimeout(abortTimeout)
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var result, error = false
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if ((xhr.status >= 200 && xhr.status < 300) || xhr.status == 304 || (xhr.status == 0 && protocol == 'file:')) {
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dataType = dataType || mimeToDataType(settings.mimeType || xhr.getResponseHeader('content-type'))
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if (xhr.responseType == 'arraybuffer' || xhr.responseType == 'blob')
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result = xhr.response
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else {
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result = xhr.responseText
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try {
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// http://perfectionkills.com/global-eval-what-are-the-options/
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// sanitize response accordingly if data filter callback provided
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result = ajaxDataFilter(result, dataType, settings)
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if (dataType == 'script') (1,eval)(result)
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else if (dataType == 'xml') result = xhr.responseXML
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else if (dataType == 'json') result = blankRE.test(result) ? null : $.parseJSON(result)
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} catch (e) { error = e }
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if (error) return ajaxError(error, 'parsererror', xhr, settings, deferred)
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}
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ajaxSuccess(result, xhr, settings, deferred)
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} else {
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ajaxError(xhr.statusText || null, xhr.status ? 'error' : 'abort', xhr, settings, deferred)
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}
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}
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}
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if (ajaxBeforeSend(xhr, settings) === false) {
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xhr.abort()
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ajaxError(null, 'abort', xhr, settings, deferred)
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return xhr
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}
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var async = 'async' in settings ? settings.async : true
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xhr.open(settings.type, settings.url, async, settings.username, settings.password)
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if (settings.xhrFields) for (name in settings.xhrFields) xhr[name] = settings.xhrFields[name]
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for (name in headers) nativeSetHeader.apply(xhr, headers[name])
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if (settings.timeout > 0) abortTimeout = setTimeout(function(){
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xhr.onreadystatechange = empty
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xhr.abort()
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ajaxError(null, 'timeout', xhr, settings, deferred)
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}, settings.timeout)
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// avoid sending empty string (#319)
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xhr.send(settings.data ? settings.data : null)
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return xhr
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}
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// handle optional data/success arguments
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function parseArguments(url, data, success, dataType) {
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if ($.isFunction(data)) dataType = success, success = data, data = undefined
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if (!$.isFunction(success)) dataType = success, success = undefined
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return {
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url: url
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, data: data
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, success: success
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, dataType: dataType
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}
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}
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$.get = function(/* url, data, success, dataType */){
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return $.ajax(parseArguments.apply(null, arguments))
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}
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$.post = function(/* url, data, success, dataType */){
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var options = parseArguments.apply(null, arguments)
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options.type = 'POST'
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return $.ajax(options)
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}
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$.getJSON = function(/* url, data, success */){
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var options = parseArguments.apply(null, arguments)
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options.dataType = 'json'
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return $.ajax(options)
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}
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$.fn.load = function(url, data, success){
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if (!this.length) return this
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var self = this, parts = url.split(/\s/), selector,
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options = parseArguments(url, data, success),
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callback = options.success
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if (parts.length > 1) options.url = parts[0], selector = parts[1]
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options.success = function(response){
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self.html(selector ?
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$('<div>').html(response.replace(rscript, "")).find(selector)
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: response)
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callback && callback.apply(self, arguments)
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}
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$.ajax(options)
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return this
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}
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var escape = encodeURIComponent
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function serialize(params, obj, traditional, scope){
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var type, array = $.isArray(obj), hash = $.isPlainObject(obj)
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$.each(obj, function(key, value) {
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type = $.type(value)
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if (scope) key = traditional ? scope :
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scope + '[' + (hash || type == 'object' || type == 'array' ? key : '') + ']'
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// handle data in serializeArray() format
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if (!scope && array) params.add(value.name, value.value)
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// recurse into nested objects
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else if (type == "array" || (!traditional && type == "object"))
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serialize(params, value, traditional, key)
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else params.add(key, value)
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})
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}
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$.param = function(obj, traditional){
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var params = []
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params.add = function(key, value) {
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if ($.isFunction(value)) value = value()
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if (value == null) value = ""
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this.push(escape(key) + '=' + escape(value))
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}
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serialize(params, obj, traditional)
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return params.join('&').replace(/%20/g, '+')
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}
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})(Zepto)
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