diff --git a/index.html b/index.html index a3bb4a1bd5..521bf026f3 100644 --- a/index.html +++ b/index.html @@ -36,7 +36,7 @@

typeahea
- download v0.11.1 + download v1.3.1 project & docs on GitHub · changelog diff --git a/releases/1.3.1/bloodhound.js b/releases/1.3.1/bloodhound.js new file mode 100644 index 0000000000..60001e176e --- /dev/null +++ b/releases/1.3.1/bloodhound.js @@ -0,0 +1,953 @@ +/*! + * typeahead.js 1.3.1 + * https://github.com/corejavascript/typeahead.js + * Copyright 2013-2020 Twitter, Inc. and other contributors; Licensed MIT + */ + + +(function(root, factory) { + if (typeof define === "function" && define.amd) { + define([ "jquery" ], function(a0) { + return root["Bloodhound"] = factory(a0); + }); + } else if (typeof module === "object" && module.exports) { + module.exports = factory(require("jquery")); + } else { + root["Bloodhound"] = factory(root["jQuery"]); + } +})(this, function($) { + var _ = function() { + "use strict"; + return { + isMsie: function() { + return /(msie|trident)/i.test(navigator.userAgent) ? navigator.userAgent.match(/(msie |rv:)(\d+(.\d+)?)/i)[2] : false; + }, + isBlankString: function(str) { + return !str || /^\s*$/.test(str); + }, + escapeRegExChars: function(str) { + return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"); + }, + isString: function(obj) { + return typeof obj === "string"; + }, + isNumber: function(obj) { + return typeof obj === "number"; + }, + isArray: $.isArray, + isFunction: $.isFunction, + isObject: $.isPlainObject, + isUndefined: function(obj) { + return typeof obj === "undefined"; + }, + isElement: function(obj) { + return !!(obj && obj.nodeType === 1); + }, + isJQuery: function(obj) { + return obj instanceof $; + }, + toStr: function toStr(s) { + return _.isUndefined(s) || s === null ? "" : s + ""; + }, + bind: $.proxy, + each: function(collection, cb) { + $.each(collection, reverseArgs); + function reverseArgs(index, value) { + return cb(value, index); + } + }, + map: $.map, + filter: $.grep, + every: function(obj, test) { + var result = true; + if (!obj) { + return result; + } + $.each(obj, function(key, val) { + if (!(result = test.call(null, val, key, obj))) { + return false; + } + }); + return !!result; + }, + some: function(obj, test) { + var result = false; + if (!obj) { + return result; + } + $.each(obj, function(key, val) { + if (result = test.call(null, val, key, obj)) { + return false; + } + }); + return !!result; + }, + mixin: $.extend, + identity: function(x) { + return x; + }, + clone: function(obj) { + return $.extend(true, {}, obj); + }, + getIdGenerator: function() { + var counter = 0; + return function() { + return counter++; + }; + }, + templatify: function templatify(obj) { + return $.isFunction(obj) ? obj : template; + function template() { + return String(obj); + } + }, + defer: function(fn) { + setTimeout(fn, 0); + }, + debounce: function(func, wait, immediate) { + var timeout, result; + return function() { + var context = this, args = arguments, later, callNow; + later = function() { + timeout = null; + if (!immediate) { + result = func.apply(context, args); + } + }; + callNow = immediate && !timeout; + clearTimeout(timeout); + timeout = setTimeout(later, wait); + if (callNow) { + result = func.apply(context, args); + } + return result; + }; + }, + throttle: function(func, wait) { + var context, args, timeout, result, previous, later; + previous = 0; + later = function() { + previous = new Date(); + timeout = null; + result = func.apply(context, args); + }; + return function() { + var now = new Date(), remaining = wait - (now - previous); + context = this; + args = arguments; + if (remaining <= 0) { + clearTimeout(timeout); + timeout = null; + previous = now; + result = func.apply(context, args); + } else if (!timeout) { + timeout = setTimeout(later, remaining); + } + return result; + }; + }, + stringify: function(val) { + return _.isString(val) ? val : JSON.stringify(val); + }, + guid: function() { + function _p8(s) { + var p = (Math.random().toString(16) + "000000000").substr(2, 8); + return s ? "-" + p.substr(0, 4) + "-" + p.substr(4, 4) : p; + } + return "tt-" + _p8() + _p8(true) + _p8(true) + _p8(); + }, + noop: function() {} + }; + }(); + var VERSION = "1.3.1"; + var tokenizers = function() { + "use strict"; + return { + nonword: nonword, + whitespace: whitespace, + ngram: ngram, + obj: { + nonword: getObjTokenizer(nonword), + whitespace: getObjTokenizer(whitespace), + ngram: getObjTokenizer(ngram) + } + }; + function whitespace(str) { + str = _.toStr(str); + return str ? str.split(/\s+/) : []; + } + function nonword(str) { + str = _.toStr(str); + return str ? str.split(/\W+/) : []; + } + function ngram(str) { + str = _.toStr(str); + var tokens = [], word = ""; + _.each(str.split(""), function(char) { + if (char.match(/\s+/)) { + word = ""; + } else { + tokens.push(word + char); + word += char; + } + }); + return tokens; + } + function getObjTokenizer(tokenizer) { + return function setKey(keys) { + keys = _.isArray(keys) ? keys : [].slice.call(arguments, 0); + return function tokenize(o) { + var tokens = []; + _.each(keys, function(k) { + tokens = tokens.concat(tokenizer(_.toStr(o[k]))); + }); + return tokens; + }; + }; + } + }(); + var LruCache = function() { + "use strict"; + function LruCache(maxSize) { + this.maxSize = _.isNumber(maxSize) ? maxSize : 100; + this.reset(); + if (this.maxSize <= 0) { + this.set = this.get = $.noop; + } + } + _.mixin(LruCache.prototype, { + set: function set(key, val) { + var tailItem = this.list.tail, node; + if (this.size >= this.maxSize) { + this.list.remove(tailItem); + delete this.hash[tailItem.key]; + this.size--; + } + if (node = this.hash[key]) { + node.val = val; + this.list.moveToFront(node); + } else { + node = new Node(key, val); + this.list.add(node); + this.hash[key] = node; + this.size++; + } + }, + get: function get(key) { + var node = this.hash[key]; + if (node) { + this.list.moveToFront(node); + return node.val; + } + }, + reset: function reset() { + this.size = 0; + this.hash = {}; + this.list = new List(); + } + }); + function List() { + this.head = this.tail = null; + } + _.mixin(List.prototype, { + add: function add(node) { + if (this.head) { + node.next = this.head; + this.head.prev = node; + } + this.head = node; + this.tail = this.tail || node; + }, + remove: function remove(node) { + node.prev ? node.prev.next = node.next : this.head = node.next; + node.next ? node.next.prev = node.prev : this.tail = node.prev; + }, + moveToFront: function(node) { + this.remove(node); + this.add(node); + } + }); + function Node(key, val) { + this.key = key; + this.val = val; + this.prev = this.next = null; + } + return LruCache; + }(); + var PersistentStorage = function() { + "use strict"; + var LOCAL_STORAGE; + try { + LOCAL_STORAGE = window.localStorage; + LOCAL_STORAGE.setItem("~~~", "!"); + LOCAL_STORAGE.removeItem("~~~"); + } catch (err) { + LOCAL_STORAGE = null; + } + function PersistentStorage(namespace, override) { + this.prefix = [ "__", namespace, "__" ].join(""); + this.ttlKey = "__ttl__"; + this.keyMatcher = new RegExp("^" + _.escapeRegExChars(this.prefix)); + this.ls = override || LOCAL_STORAGE; + !this.ls && this._noop(); + } + _.mixin(PersistentStorage.prototype, { + _prefix: function(key) { + return this.prefix + key; + }, + _ttlKey: function(key) { + return this._prefix(key) + this.ttlKey; + }, + _noop: function() { + this.get = this.set = this.remove = this.clear = this.isExpired = _.noop; + }, + _safeSet: function(key, val) { + try { + this.ls.setItem(key, val); + } catch (err) { + if (err.name === "QuotaExceededError") { + this.clear(); + this._noop(); + } + } + }, + get: function(key) { + if (this.isExpired(key)) { + this.remove(key); + } + return decode(this.ls.getItem(this._prefix(key))); + }, + set: function(key, val, ttl) { + if (_.isNumber(ttl)) { + this._safeSet(this._ttlKey(key), encode(now() + ttl)); + } else { + this.ls.removeItem(this._ttlKey(key)); + } + return this._safeSet(this._prefix(key), encode(val)); + }, + remove: function(key) { + this.ls.removeItem(this._ttlKey(key)); + this.ls.removeItem(this._prefix(key)); + return this; + }, + clear: function() { + var i, keys = gatherMatchingKeys(this.keyMatcher); + for (i = keys.length; i--; ) { + this.remove(keys[i]); + } + return this; + }, + isExpired: function(key) { + var ttl = decode(this.ls.getItem(this._ttlKey(key))); + return _.isNumber(ttl) && now() > ttl ? true : false; + } + }); + return PersistentStorage; + function now() { + return new Date().getTime(); + } + function encode(val) { + return JSON.stringify(_.isUndefined(val) ? null : val); + } + function decode(val) { + return $.parseJSON(val); + } + function gatherMatchingKeys(keyMatcher) { + var i, key, keys = [], len = LOCAL_STORAGE.length; + for (i = 0; i < len; i++) { + if ((key = LOCAL_STORAGE.key(i)).match(keyMatcher)) { + keys.push(key.replace(keyMatcher, "")); + } + } + return keys; + } + }(); + var Transport = function() { + "use strict"; + var pendingRequestsCount = 0, pendingRequests = {}, sharedCache = new LruCache(10); + function Transport(o) { + o = o || {}; + this.maxPendingRequests = o.maxPendingRequests || 6; + this.cancelled = false; + this.lastReq = null; + this._send = o.transport; + this._get = o.limiter ? o.limiter(this._get) : this._get; + this._cache = o.cache === false ? new LruCache(0) : sharedCache; + } + Transport.setMaxPendingRequests = function setMaxPendingRequests(num) { + this.maxPendingRequests = num; + }; + Transport.resetCache = function resetCache() { + sharedCache.reset(); + }; + _.mixin(Transport.prototype, { + _fingerprint: function fingerprint(o) { + o = o || {}; + return o.url + o.type + $.param(o.data || {}); + }, + _get: function(o, cb) { + var that = this, fingerprint, jqXhr; + fingerprint = this._fingerprint(o); + if (this.cancelled || fingerprint !== this.lastReq) { + return; + } + if (jqXhr = pendingRequests[fingerprint]) { + jqXhr.done(done).fail(fail); + } else if (pendingRequestsCount < this.maxPendingRequests) { + pendingRequestsCount++; + pendingRequests[fingerprint] = this._send(o).done(done).fail(fail).always(always); + } else { + this.onDeckRequestArgs = [].slice.call(arguments, 0); + } + function done(resp) { + cb(null, resp); + that._cache.set(fingerprint, resp); + } + function fail() { + cb(true); + } + function always() { + pendingRequestsCount--; + delete pendingRequests[fingerprint]; + if (that.onDeckRequestArgs) { + that._get.apply(that, that.onDeckRequestArgs); + that.onDeckRequestArgs = null; + } + } + }, + get: function(o, cb) { + var resp, fingerprint; + cb = cb || $.noop; + o = _.isString(o) ? { + url: o + } : o || {}; + fingerprint = this._fingerprint(o); + this.cancelled = false; + this.lastReq = fingerprint; + if (resp = this._cache.get(fingerprint)) { + cb(null, resp); + } else { + this._get(o, cb); + } + }, + cancel: function() { + this.cancelled = true; + } + }); + return Transport; + }(); + var SearchIndex = window.SearchIndex = function() { + "use strict"; + var CHILDREN = "c", IDS = "i"; + function SearchIndex(o) { + o = o || {}; + if (!o.datumTokenizer || !o.queryTokenizer) { + $.error("datumTokenizer and queryTokenizer are both required"); + } + this.identify = o.identify || _.stringify; + this.datumTokenizer = o.datumTokenizer; + this.queryTokenizer = o.queryTokenizer; + this.matchAnyQueryToken = o.matchAnyQueryToken; + this.reset(); + } + _.mixin(SearchIndex.prototype, { + bootstrap: function bootstrap(o) { + this.datums = o.datums; + this.trie = o.trie; + }, + add: function(data) { + var that = this; + data = _.isArray(data) ? data : [ data ]; + _.each(data, function(datum) { + var id, tokens; + that.datums[id = that.identify(datum)] = datum; + tokens = normalizeTokens(that.datumTokenizer(datum)); + _.each(tokens, function(token) { + var node, chars, ch; + node = that.trie; + chars = token.split(""); + while (ch = chars.shift()) { + node = node[CHILDREN][ch] || (node[CHILDREN][ch] = newNode()); + node[IDS].push(id); + } + }); + }); + }, + get: function get(ids) { + var that = this; + return _.map(ids, function(id) { + return that.datums[id]; + }); + }, + search: function search(query) { + var that = this, tokens, matches; + tokens = normalizeTokens(this.queryTokenizer(query)); + _.each(tokens, function(token) { + var node, chars, ch, ids; + if (matches && matches.length === 0 && !that.matchAnyQueryToken) { + return false; + } + node = that.trie; + chars = token.split(""); + while (node && (ch = chars.shift())) { + node = node[CHILDREN][ch]; + } + if (node && chars.length === 0) { + ids = node[IDS].slice(0); + matches = matches ? getIntersection(matches, ids) : ids; + } else { + if (!that.matchAnyQueryToken) { + matches = []; + return false; + } + } + }); + return matches ? _.map(unique(matches), function(id) { + return that.datums[id]; + }) : []; + }, + all: function all() { + var values = []; + for (var key in this.datums) { + values.push(this.datums[key]); + } + return values; + }, + reset: function reset() { + this.datums = {}; + this.trie = newNode(); + }, + serialize: function serialize() { + return { + datums: this.datums, + trie: this.trie + }; + } + }); + return SearchIndex; + function normalizeTokens(tokens) { + tokens = _.filter(tokens, function(token) { + return !!token; + }); + tokens = _.map(tokens, function(token) { + return token.toLowerCase(); + }); + return tokens; + } + function newNode() { + var node = {}; + node[IDS] = []; + node[CHILDREN] = {}; + return node; + } + function unique(array) { + var seen = {}, uniques = []; + for (var i = 0, len = array.length; i < len; i++) { + if (!seen[array[i]]) { + seen[array[i]] = true; + uniques.push(array[i]); + } + } + return uniques; + } + function getIntersection(arrayA, arrayB) { + var ai = 0, bi = 0, intersection = []; + arrayA = arrayA.sort(); + arrayB = arrayB.sort(); + var lenArrayA = arrayA.length, lenArrayB = arrayB.length; + while (ai < lenArrayA && bi < lenArrayB) { + if (arrayA[ai] < arrayB[bi]) { + ai++; + } else if (arrayA[ai] > arrayB[bi]) { + bi++; + } else { + intersection.push(arrayA[ai]); + ai++; + bi++; + } + } + return intersection; + } + }(); + var Prefetch = function() { + "use strict"; + var keys; + keys = { + data: "data", + protocol: "protocol", + thumbprint: "thumbprint" + }; + function Prefetch(o) { + this.url = o.url; + this.ttl = o.ttl; + this.cache = o.cache; + this.prepare = o.prepare; + this.transform = o.transform; + this.transport = o.transport; + this.thumbprint = o.thumbprint; + this.storage = new PersistentStorage(o.cacheKey); + } + _.mixin(Prefetch.prototype, { + _settings: function settings() { + return { + url: this.url, + type: "GET", + dataType: "json" + }; + }, + store: function store(data) { + if (!this.cache) { + return; + } + this.storage.set(keys.data, data, this.ttl); + this.storage.set(keys.protocol, location.protocol, this.ttl); + this.storage.set(keys.thumbprint, this.thumbprint, this.ttl); + }, + fromCache: function fromCache() { + var stored = {}, isExpired; + if (!this.cache) { + return null; + } + stored.data = this.storage.get(keys.data); + stored.protocol = this.storage.get(keys.protocol); + stored.thumbprint = this.storage.get(keys.thumbprint); + isExpired = stored.thumbprint !== this.thumbprint || stored.protocol !== location.protocol; + return stored.data && !isExpired ? stored.data : null; + }, + fromNetwork: function(cb) { + var that = this, settings; + if (!cb) { + return; + } + settings = this.prepare(this._settings()); + this.transport(settings).fail(onError).done(onResponse); + function onError() { + cb(true); + } + function onResponse(resp) { + cb(null, that.transform(resp)); + } + }, + clear: function clear() { + this.storage.clear(); + return this; + } + }); + return Prefetch; + }(); + var Remote = function() { + "use strict"; + function Remote(o) { + this.url = o.url; + this.prepare = o.prepare; + this.transform = o.transform; + this.indexResponse = o.indexResponse; + this.transport = new Transport({ + cache: o.cache, + limiter: o.limiter, + transport: o.transport, + maxPendingRequests: o.maxPendingRequests + }); + } + _.mixin(Remote.prototype, { + _settings: function settings() { + return { + url: this.url, + type: "GET", + dataType: "json" + }; + }, + get: function get(query, cb) { + var that = this, settings; + if (!cb) { + return; + } + query = query || ""; + settings = this.prepare(query, this._settings()); + return this.transport.get(settings, onResponse); + function onResponse(err, resp) { + err ? cb([]) : cb(that.transform(resp)); + } + }, + cancelLastRequest: function cancelLastRequest() { + this.transport.cancel(); + } + }); + return Remote; + }(); + var oParser = function() { + "use strict"; + return function parse(o) { + var defaults, sorter; + defaults = { + initialize: true, + identify: _.stringify, + datumTokenizer: null, + queryTokenizer: null, + matchAnyQueryToken: false, + sufficient: 5, + indexRemote: false, + sorter: null, + local: [], + prefetch: null, + remote: null + }; + o = _.mixin(defaults, o || {}); + !o.datumTokenizer && $.error("datumTokenizer is required"); + !o.queryTokenizer && $.error("queryTokenizer is required"); + sorter = o.sorter; + o.sorter = sorter ? function(x) { + return x.sort(sorter); + } : _.identity; + o.local = _.isFunction(o.local) ? o.local() : o.local; + o.prefetch = parsePrefetch(o.prefetch); + o.remote = parseRemote(o.remote); + return o; + }; + function parsePrefetch(o) { + var defaults; + if (!o) { + return null; + } + defaults = { + url: null, + ttl: 24 * 60 * 60 * 1e3, + cache: true, + cacheKey: null, + thumbprint: "", + prepare: _.identity, + transform: _.identity, + transport: null + }; + o = _.isString(o) ? { + url: o + } : o; + o = _.mixin(defaults, o); + !o.url && $.error("prefetch requires url to be set"); + o.transform = o.filter || o.transform; + o.cacheKey = o.cacheKey || o.url; + o.thumbprint = VERSION + o.thumbprint; + o.transport = o.transport ? callbackToDeferred(o.transport) : $.ajax; + return o; + } + function parseRemote(o) { + var defaults; + if (!o) { + return; + } + defaults = { + url: null, + cache: true, + prepare: null, + replace: null, + wildcard: null, + limiter: null, + rateLimitBy: "debounce", + rateLimitWait: 300, + transform: _.identity, + transport: null + }; + o = _.isString(o) ? { + url: o + } : o; + o = _.mixin(defaults, o); + !o.url && $.error("remote requires url to be set"); + o.transform = o.filter || o.transform; + o.prepare = toRemotePrepare(o); + o.limiter = toLimiter(o); + o.transport = o.transport ? callbackToDeferred(o.transport) : $.ajax; + delete o.replace; + delete o.wildcard; + delete o.rateLimitBy; + delete o.rateLimitWait; + return o; + } + function toRemotePrepare(o) { + var prepare, replace, wildcard; + prepare = o.prepare; + replace = o.replace; + wildcard = o.wildcard; + if (prepare) { + return prepare; + } + if (replace) { + prepare = prepareByReplace; + } else if (o.wildcard) { + prepare = prepareByWildcard; + } else { + prepare = identityPrepare; + } + return prepare; + function prepareByReplace(query, settings) { + settings.url = replace(settings.url, query); + return settings; + } + function prepareByWildcard(query, settings) { + settings.url = settings.url.replace(wildcard, encodeURIComponent(query)); + return settings; + } + function identityPrepare(query, settings) { + return settings; + } + } + function toLimiter(o) { + var limiter, method, wait; + limiter = o.limiter; + method = o.rateLimitBy; + wait = o.rateLimitWait; + if (!limiter) { + limiter = /^throttle$/i.test(method) ? throttle(wait) : debounce(wait); + } + return limiter; + function debounce(wait) { + return function debounce(fn) { + return _.debounce(fn, wait); + }; + } + function throttle(wait) { + return function throttle(fn) { + return _.throttle(fn, wait); + }; + } + } + function callbackToDeferred(fn) { + return function wrapper(o) { + var deferred = $.Deferred(); + fn(o, onSuccess, onError); + return deferred; + function onSuccess(resp) { + _.defer(function() { + deferred.resolve(resp); + }); + } + function onError(err) { + _.defer(function() { + deferred.reject(err); + }); + } + }; + } + }(); + var Bloodhound = function() { + "use strict"; + var old; + old = window && window.Bloodhound; + function Bloodhound(o) { + o = oParser(o); + this.sorter = o.sorter; + this.identify = o.identify; + this.sufficient = o.sufficient; + this.indexRemote = o.indexRemote; + this.local = o.local; + this.remote = o.remote ? new Remote(o.remote) : null; + this.prefetch = o.prefetch ? new Prefetch(o.prefetch) : null; + this.index = new SearchIndex({ + identify: this.identify, + datumTokenizer: o.datumTokenizer, + queryTokenizer: o.queryTokenizer + }); + o.initialize !== false && this.initialize(); + } + Bloodhound.noConflict = function noConflict() { + window && (window.Bloodhound = old); + return Bloodhound; + }; + Bloodhound.tokenizers = tokenizers; + _.mixin(Bloodhound.prototype, { + __ttAdapter: function ttAdapter() { + var that = this; + return this.remote ? withAsync : withoutAsync; + function withAsync(query, sync, async) { + return that.search(query, sync, async); + } + function withoutAsync(query, sync) { + return that.search(query, sync); + } + }, + _loadPrefetch: function loadPrefetch() { + var that = this, deferred, serialized; + deferred = $.Deferred(); + if (!this.prefetch) { + deferred.resolve(); + } else if (serialized = this.prefetch.fromCache()) { + this.index.bootstrap(serialized); + deferred.resolve(); + } else { + this.prefetch.fromNetwork(done); + } + return deferred.promise(); + function done(err, data) { + if (err) { + return deferred.reject(); + } + that.add(data); + that.prefetch.store(that.index.serialize()); + deferred.resolve(); + } + }, + _initialize: function initialize() { + var that = this, deferred; + this.clear(); + (this.initPromise = this._loadPrefetch()).done(addLocalToIndex); + return this.initPromise; + function addLocalToIndex() { + that.add(that.local); + } + }, + initialize: function initialize(force) { + return !this.initPromise || force ? this._initialize() : this.initPromise; + }, + add: function add(data) { + this.index.add(data); + return this; + }, + get: function get(ids) { + ids = _.isArray(ids) ? ids : [].slice.call(arguments); + return this.index.get(ids); + }, + search: function search(query, sync, async) { + var that = this, local; + sync = sync || _.noop; + async = async || _.noop; + local = this.sorter(this.index.search(query)); + sync(this.remote ? local.slice() : local); + if (this.remote && local.length < this.sufficient) { + this.remote.get(query, processRemote); + } else if (this.remote) { + this.remote.cancelLastRequest(); + } + return this; + function processRemote(remote) { + var nonDuplicates = []; + _.each(remote, function(r) { + !_.some(local, function(l) { + return that.identify(r) === that.identify(l); + }) && nonDuplicates.push(r); + }); + that.indexRemote && that.add(nonDuplicates); + async(nonDuplicates); + } + }, + all: function all() { + return this.index.all(); + }, + clear: function clear() { + this.index.reset(); + return this; + }, + clearPrefetchCache: function clearPrefetchCache() { + this.prefetch && this.prefetch.clear(); + return this; + }, + clearRemoteCache: function clearRemoteCache() { + Transport.resetCache(); + return this; + }, + ttAdapter: function ttAdapter() { + return this.__ttAdapter(); + } + }); + return Bloodhound; + }(); + return Bloodhound; +}); \ No newline at end of file diff --git a/releases/1.3.1/bloodhound.min.js b/releases/1.3.1/bloodhound.min.js new file mode 100644 index 0000000000..beb66b15b8 --- /dev/null +++ b/releases/1.3.1/bloodhound.min.js @@ -0,0 +1,8 @@ +/*! + * typeahead.js 1.3.1 + * https://github.com/corejavascript/typeahead.js + * Copyright 2013-2020 Twitter, Inc. and other contributors; Licensed MIT + */ + + +!function(a,b){"function"==typeof define&&define.amd?define(["jquery"],function(c){return a.Bloodhound=b(c)}):"object"==typeof 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node.val; + } + }, + reset: function reset() { + this.size = 0; + this.hash = {}; + this.list = new List(); + } + }); + function List() { + this.head = this.tail = null; + } + _.mixin(List.prototype, { + add: function add(node) { + if (this.head) { + node.next = this.head; + this.head.prev = node; + } + this.head = node; + this.tail = this.tail || node; + }, + remove: function remove(node) { + node.prev ? node.prev.next = node.next : this.head = node.next; + node.next ? node.next.prev = node.prev : this.tail = node.prev; + }, + moveToFront: function(node) { + this.remove(node); + this.add(node); + } + }); + function Node(key, val) { + this.key = key; + this.val = val; + this.prev = this.next = null; + } + return LruCache; + }(); + var PersistentStorage = function() { + "use strict"; + var LOCAL_STORAGE; + try { + LOCAL_STORAGE = window.localStorage; + LOCAL_STORAGE.setItem("~~~", "!"); + LOCAL_STORAGE.removeItem("~~~"); + } catch (err) { + LOCAL_STORAGE = null; + } + function PersistentStorage(namespace, override) { + this.prefix = [ "__", namespace, "__" ].join(""); + this.ttlKey = "__ttl__"; + this.keyMatcher = new RegExp("^" + _.escapeRegExChars(this.prefix)); + this.ls = override || LOCAL_STORAGE; + !this.ls && this._noop(); + } + _.mixin(PersistentStorage.prototype, { + _prefix: function(key) { + return this.prefix + key; + }, + _ttlKey: function(key) { + return this._prefix(key) + this.ttlKey; + }, + _noop: function() { + this.get = this.set = this.remove = this.clear = this.isExpired = _.noop; + }, + _safeSet: function(key, val) { + try { + this.ls.setItem(key, val); + } catch (err) { + if (err.name === "QuotaExceededError") { + this.clear(); + this._noop(); + } + } + }, + get: function(key) { + if (this.isExpired(key)) { + this.remove(key); + } + return decode(this.ls.getItem(this._prefix(key))); + }, + set: function(key, val, ttl) { + if (_.isNumber(ttl)) { + this._safeSet(this._ttlKey(key), encode(now() + ttl)); + } else { + this.ls.removeItem(this._ttlKey(key)); + } + return this._safeSet(this._prefix(key), encode(val)); + }, + remove: function(key) { + this.ls.removeItem(this._ttlKey(key)); + this.ls.removeItem(this._prefix(key)); + return this; + }, + clear: function() { + var i, keys = gatherMatchingKeys(this.keyMatcher); + for (i = keys.length; i--; ) { + this.remove(keys[i]); + } + return this; + }, + isExpired: function(key) { + var ttl = decode(this.ls.getItem(this._ttlKey(key))); + return _.isNumber(ttl) && now() > ttl ? true : false; + } + }); + return PersistentStorage; + function now() { + return new Date().getTime(); + } + function encode(val) { + return JSON.stringify(_.isUndefined(val) ? null : val); + } + function decode(val) { + return $.parseJSON(val); + } + function gatherMatchingKeys(keyMatcher) { + var i, key, keys = [], len = LOCAL_STORAGE.length; + for (i = 0; i < len; i++) { + if ((key = LOCAL_STORAGE.key(i)).match(keyMatcher)) { + keys.push(key.replace(keyMatcher, "")); + } + } + return keys; + } + }(); + var Transport = function() { + "use strict"; + var pendingRequestsCount = 0, pendingRequests = {}, sharedCache = new LruCache(10); + function Transport(o) { + o = o || {}; + this.maxPendingRequests = o.maxPendingRequests || 6; + this.cancelled = false; + this.lastReq = null; + this._send = o.transport; + this._get = o.limiter ? o.limiter(this._get) : this._get; + this._cache = o.cache === false ? new LruCache(0) : sharedCache; + } + Transport.setMaxPendingRequests = function setMaxPendingRequests(num) { + this.maxPendingRequests = num; + }; + Transport.resetCache = function resetCache() { + sharedCache.reset(); + }; + _.mixin(Transport.prototype, { + _fingerprint: function fingerprint(o) { + o = o || {}; + return o.url + o.type + $.param(o.data || {}); + }, + _get: function(o, cb) { + var that = this, fingerprint, jqXhr; + fingerprint = this._fingerprint(o); + if (this.cancelled || fingerprint !== this.lastReq) { + return; + } + if (jqXhr = pendingRequests[fingerprint]) { + jqXhr.done(done).fail(fail); + } else if (pendingRequestsCount < this.maxPendingRequests) { + pendingRequestsCount++; + pendingRequests[fingerprint] = this._send(o).done(done).fail(fail).always(always); + } else { + this.onDeckRequestArgs = [].slice.call(arguments, 0); + } + function done(resp) { + cb(null, resp); + that._cache.set(fingerprint, resp); + } + function fail() { + cb(true); + } + function always() { + pendingRequestsCount--; + delete pendingRequests[fingerprint]; + if (that.onDeckRequestArgs) { + that._get.apply(that, that.onDeckRequestArgs); + that.onDeckRequestArgs = null; + } + } + }, + get: function(o, cb) { + var resp, fingerprint; + cb = cb || $.noop; + o = _.isString(o) ? { + url: o + } : o || {}; + fingerprint = this._fingerprint(o); + this.cancelled = false; + this.lastReq = fingerprint; + if (resp = this._cache.get(fingerprint)) { + cb(null, resp); + } else { + this._get(o, cb); + } + }, + cancel: function() { + this.cancelled = true; + } + }); + return Transport; + }(); + var SearchIndex = window.SearchIndex = function() { + "use strict"; + var CHILDREN = "c", IDS = "i"; + function SearchIndex(o) { + o = o || {}; + if (!o.datumTokenizer || !o.queryTokenizer) { + $.error("datumTokenizer and queryTokenizer are both required"); + } + this.identify = o.identify || _.stringify; + this.datumTokenizer = o.datumTokenizer; + this.queryTokenizer = o.queryTokenizer; + this.matchAnyQueryToken = o.matchAnyQueryToken; + this.reset(); + } + _.mixin(SearchIndex.prototype, { + bootstrap: function bootstrap(o) { + this.datums = o.datums; + this.trie = o.trie; + }, + add: function(data) { + var that = this; + data = _.isArray(data) ? data : [ data ]; + _.each(data, function(datum) { + var id, tokens; + that.datums[id = that.identify(datum)] = datum; + tokens = normalizeTokens(that.datumTokenizer(datum)); + _.each(tokens, function(token) { + var node, chars, ch; + node = that.trie; + chars = token.split(""); + while (ch = chars.shift()) { + node = node[CHILDREN][ch] || (node[CHILDREN][ch] = newNode()); + node[IDS].push(id); + } + }); + }); + }, + get: function get(ids) { + var that = this; + return _.map(ids, function(id) { + return that.datums[id]; + }); + }, + search: function search(query) { + var that = this, tokens, matches; + tokens = normalizeTokens(this.queryTokenizer(query)); + _.each(tokens, function(token) { + var node, chars, ch, ids; + if (matches && matches.length === 0 && !that.matchAnyQueryToken) { + return false; + } + node = that.trie; + chars = token.split(""); + while (node && (ch = chars.shift())) { + node = node[CHILDREN][ch]; + } + if (node && chars.length === 0) { + ids = node[IDS].slice(0); + matches = matches ? getIntersection(matches, ids) : ids; + } else { + if (!that.matchAnyQueryToken) { + matches = []; + return false; + } + } + }); + return matches ? _.map(unique(matches), function(id) { + return that.datums[id]; + }) : []; + }, + all: function all() { + var values = []; + for (var key in this.datums) { + values.push(this.datums[key]); + } + return values; + }, + reset: function reset() { + this.datums = {}; + this.trie = newNode(); + }, + serialize: function serialize() { + return { + datums: this.datums, + trie: this.trie + }; + } + }); + return SearchIndex; + function normalizeTokens(tokens) { + tokens = _.filter(tokens, function(token) { + return !!token; + }); + tokens = _.map(tokens, function(token) { + return token.toLowerCase(); + }); + return tokens; + } + function newNode() { + var node = {}; + node[IDS] = []; + node[CHILDREN] = {}; + return node; + } + function unique(array) { + var seen = {}, uniques = []; + for (var i = 0, len = array.length; i < len; i++) { + if (!seen[array[i]]) { + seen[array[i]] = true; + uniques.push(array[i]); + } + } + return uniques; + } + function getIntersection(arrayA, arrayB) { + var ai = 0, bi = 0, intersection = []; + arrayA = arrayA.sort(); + arrayB = arrayB.sort(); + var lenArrayA = arrayA.length, lenArrayB = arrayB.length; + while (ai < lenArrayA && bi < lenArrayB) { + if (arrayA[ai] < arrayB[bi]) { + ai++; + } else if (arrayA[ai] > arrayB[bi]) { + bi++; + } else { + intersection.push(arrayA[ai]); + ai++; + bi++; + } + } + return intersection; + } + }(); + var Prefetch = function() { + "use strict"; + var keys; + keys = { + data: "data", + protocol: "protocol", + thumbprint: "thumbprint" + }; + function Prefetch(o) { + this.url = o.url; + this.ttl = o.ttl; + this.cache = o.cache; + this.prepare = o.prepare; + this.transform = o.transform; + this.transport = o.transport; + this.thumbprint = o.thumbprint; + this.storage = new PersistentStorage(o.cacheKey); + } + _.mixin(Prefetch.prototype, { + _settings: function settings() { + return { + url: this.url, + type: "GET", + dataType: "json" + }; + }, + store: function store(data) { + if (!this.cache) { + return; + } + this.storage.set(keys.data, data, this.ttl); + this.storage.set(keys.protocol, location.protocol, this.ttl); + this.storage.set(keys.thumbprint, this.thumbprint, this.ttl); + }, + fromCache: function fromCache() { + var stored = {}, isExpired; + if (!this.cache) { + return null; + } + stored.data = this.storage.get(keys.data); + stored.protocol = this.storage.get(keys.protocol); + stored.thumbprint = this.storage.get(keys.thumbprint); + isExpired = stored.thumbprint !== this.thumbprint || stored.protocol !== location.protocol; + return stored.data && !isExpired ? stored.data : null; + }, + fromNetwork: function(cb) { + var that = this, settings; + if (!cb) { + return; + } + settings = this.prepare(this._settings()); + this.transport(settings).fail(onError).done(onResponse); + function onError() { + cb(true); + } + function onResponse(resp) { + cb(null, that.transform(resp)); + } + }, + clear: function clear() { + this.storage.clear(); + return this; + } + }); + return Prefetch; + }(); + var Remote = function() { + "use strict"; + function Remote(o) { + this.url = o.url; + this.prepare = o.prepare; + this.transform = o.transform; + this.indexResponse = o.indexResponse; + this.transport = new Transport({ + cache: o.cache, + limiter: o.limiter, + transport: o.transport, + maxPendingRequests: o.maxPendingRequests + }); + } + _.mixin(Remote.prototype, { + _settings: function settings() { + return { + url: this.url, + type: "GET", + dataType: "json" + }; + }, + get: function get(query, cb) { + var that = this, settings; + if (!cb) { + return; + } + query = query || ""; + settings = this.prepare(query, this._settings()); + return this.transport.get(settings, onResponse); + function onResponse(err, resp) { + err ? cb([]) : cb(that.transform(resp)); + } + }, + cancelLastRequest: function cancelLastRequest() { + this.transport.cancel(); + } + }); + return Remote; + }(); + var oParser = function() { + "use strict"; + return function parse(o) { + var defaults, sorter; + defaults = { + initialize: true, + identify: _.stringify, + datumTokenizer: null, + queryTokenizer: null, + matchAnyQueryToken: false, + sufficient: 5, + indexRemote: false, + sorter: null, + local: [], + prefetch: null, + remote: null + }; + o = _.mixin(defaults, o || {}); + !o.datumTokenizer && $.error("datumTokenizer is required"); + !o.queryTokenizer && $.error("queryTokenizer is required"); + sorter = o.sorter; + o.sorter = sorter ? function(x) { + return x.sort(sorter); + } : _.identity; + o.local = _.isFunction(o.local) ? o.local() : o.local; + o.prefetch = parsePrefetch(o.prefetch); + o.remote = parseRemote(o.remote); + return o; + }; + function parsePrefetch(o) { + var defaults; + if (!o) { + return null; + } + defaults = { + url: null, + ttl: 24 * 60 * 60 * 1e3, + cache: true, + cacheKey: null, + thumbprint: "", + prepare: _.identity, + transform: _.identity, + transport: null + }; + o = _.isString(o) ? { + url: o + } : o; + o = _.mixin(defaults, o); + !o.url && $.error("prefetch requires url to be set"); + o.transform = o.filter || o.transform; + o.cacheKey = o.cacheKey || o.url; + o.thumbprint = VERSION + o.thumbprint; + o.transport = o.transport ? callbackToDeferred(o.transport) : $.ajax; + return o; + } + function parseRemote(o) { + var defaults; + if (!o) { + return; + } + defaults = { + url: null, + cache: true, + prepare: null, + replace: null, + wildcard: null, + limiter: null, + rateLimitBy: "debounce", + rateLimitWait: 300, + transform: _.identity, + transport: null + }; + o = _.isString(o) ? { + url: o + } : o; + o = _.mixin(defaults, o); + !o.url && $.error("remote requires url to be set"); + o.transform = o.filter || o.transform; + o.prepare = toRemotePrepare(o); + o.limiter = toLimiter(o); + o.transport = o.transport ? callbackToDeferred(o.transport) : $.ajax; + delete o.replace; + delete o.wildcard; + delete o.rateLimitBy; + delete o.rateLimitWait; + return o; + } + function toRemotePrepare(o) { + var prepare, replace, wildcard; + prepare = o.prepare; + replace = o.replace; + wildcard = o.wildcard; + if (prepare) { + return prepare; + } + if (replace) { + prepare = prepareByReplace; + } else if (o.wildcard) { + prepare = prepareByWildcard; + } else { + prepare = identityPrepare; + } + return prepare; + function prepareByReplace(query, settings) { + settings.url = replace(settings.url, query); + return settings; + } + function prepareByWildcard(query, settings) { + settings.url = settings.url.replace(wildcard, encodeURIComponent(query)); + return settings; + } + function identityPrepare(query, settings) { + return settings; + } + } + function toLimiter(o) { + var limiter, method, wait; + limiter = o.limiter; + method = o.rateLimitBy; + wait = o.rateLimitWait; + if (!limiter) { + limiter = /^throttle$/i.test(method) ? throttle(wait) : debounce(wait); + } + return limiter; + function debounce(wait) { + return function debounce(fn) { + return _.debounce(fn, wait); + }; + } + function throttle(wait) { + return function throttle(fn) { + return _.throttle(fn, wait); + }; + } + } + function callbackToDeferred(fn) { + return function wrapper(o) { + var deferred = $.Deferred(); + fn(o, onSuccess, onError); + return deferred; + function onSuccess(resp) { + _.defer(function() { + deferred.resolve(resp); + }); + } + function onError(err) { + _.defer(function() { + deferred.reject(err); + }); + } + }; + } + }(); + var Bloodhound = function() { + "use strict"; + var old; + old = window && window.Bloodhound; + function Bloodhound(o) { + o = oParser(o); + this.sorter = o.sorter; + this.identify = o.identify; + this.sufficient = o.sufficient; + this.indexRemote = o.indexRemote; + this.local = o.local; + this.remote = o.remote ? new Remote(o.remote) : null; + this.prefetch = o.prefetch ? new Prefetch(o.prefetch) : null; + this.index = new SearchIndex({ + identify: this.identify, + datumTokenizer: o.datumTokenizer, + queryTokenizer: o.queryTokenizer + }); + o.initialize !== false && this.initialize(); + } + Bloodhound.noConflict = function noConflict() { + window && (window.Bloodhound = old); + return Bloodhound; + }; + Bloodhound.tokenizers = tokenizers; + _.mixin(Bloodhound.prototype, { + __ttAdapter: function ttAdapter() { + var that = this; + return this.remote ? withAsync : withoutAsync; + function withAsync(query, sync, async) { + return that.search(query, sync, async); + } + function withoutAsync(query, sync) { + return that.search(query, sync); + } + }, + _loadPrefetch: function loadPrefetch() { + var that = this, deferred, serialized; + deferred = $.Deferred(); + if (!this.prefetch) { + deferred.resolve(); + } else if (serialized = this.prefetch.fromCache()) { + this.index.bootstrap(serialized); + deferred.resolve(); + } else { + this.prefetch.fromNetwork(done); + } + return deferred.promise(); + function done(err, data) { + if (err) { + return deferred.reject(); + } + that.add(data); + that.prefetch.store(that.index.serialize()); + deferred.resolve(); + } + }, + _initialize: function initialize() { + var that = this, deferred; + this.clear(); + (this.initPromise = this._loadPrefetch()).done(addLocalToIndex); + return this.initPromise; + function addLocalToIndex() { + that.add(that.local); + } + }, + initialize: function initialize(force) { + return !this.initPromise || force ? this._initialize() : this.initPromise; + }, + add: function add(data) { + this.index.add(data); + return this; + }, + get: function get(ids) { + ids = _.isArray(ids) ? ids : [].slice.call(arguments); + return this.index.get(ids); + }, + search: function search(query, sync, async) { + var that = this, local; + sync = sync || _.noop; + async = async || _.noop; + local = this.sorter(this.index.search(query)); + sync(this.remote ? local.slice() : local); + if (this.remote && local.length < this.sufficient) { + this.remote.get(query, processRemote); + } else if (this.remote) { + this.remote.cancelLastRequest(); + } + return this; + function processRemote(remote) { + var nonDuplicates = []; + _.each(remote, function(r) { + !_.some(local, function(l) { + return that.identify(r) === that.identify(l); + }) && nonDuplicates.push(r); + }); + that.indexRemote && that.add(nonDuplicates); + async(nonDuplicates); + } + }, + all: function all() { + return this.index.all(); + }, + clear: function clear() { + this.index.reset(); + return this; + }, + clearPrefetchCache: function clearPrefetchCache() { + this.prefetch && this.prefetch.clear(); + return this; + }, + clearRemoteCache: function clearRemoteCache() { + Transport.resetCache(); + return this; + }, + ttAdapter: function ttAdapter() { + return this.__ttAdapter(); + } + }); + return Bloodhound; + }(); + return Bloodhound; +}); + +(function(root, factory) { + if (typeof define === "function" && define.amd) { + define([ "jquery" ], function(a0) { + return factory(a0); + }); + } else if (typeof module === "object" && module.exports) { + module.exports = factory(require("jquery")); + } else { + factory(root["jQuery"]); + } +})(this, function($) { + var _ = function() { + "use strict"; + return { + isMsie: function() { + return /(msie|trident)/i.test(navigator.userAgent) ? navigator.userAgent.match(/(msie |rv:)(\d+(.\d+)?)/i)[2] : false; + }, + isBlankString: function(str) { + return !str || /^\s*$/.test(str); + }, + escapeRegExChars: function(str) { + return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"); + }, + isString: function(obj) { + return typeof obj === "string"; + }, + isNumber: function(obj) { + return typeof obj === "number"; + }, + isArray: $.isArray, + isFunction: $.isFunction, + isObject: $.isPlainObject, + isUndefined: function(obj) { + return typeof obj === "undefined"; + }, + isElement: function(obj) { + return !!(obj && obj.nodeType === 1); + }, + isJQuery: function(obj) { + return obj instanceof $; + }, + toStr: function toStr(s) { + return _.isUndefined(s) || s === null ? "" : s + ""; + }, + bind: $.proxy, + each: function(collection, cb) { + $.each(collection, reverseArgs); + function reverseArgs(index, value) { + return cb(value, index); + } + }, + map: $.map, + filter: $.grep, + every: function(obj, test) { + var result = true; + if (!obj) { + return result; + } + $.each(obj, function(key, val) { + if (!(result = test.call(null, val, key, obj))) { + return false; + } + }); + return !!result; + }, + some: function(obj, test) { + var result = false; + if (!obj) { + return result; + } + $.each(obj, function(key, val) { + if (result = test.call(null, val, key, obj)) { + return false; + } + }); + return !!result; + }, + mixin: $.extend, + identity: function(x) { + return x; + }, + clone: function(obj) { + return $.extend(true, {}, obj); + }, + getIdGenerator: function() { + var counter = 0; + return function() { + return counter++; + }; + }, + templatify: function templatify(obj) { + return $.isFunction(obj) ? obj : template; + function template() { + return String(obj); + } + }, + defer: function(fn) { + setTimeout(fn, 0); + }, + debounce: function(func, wait, immediate) { + var timeout, result; + return function() { + var context = this, args = arguments, later, callNow; + later = function() { + timeout = null; + if (!immediate) { + result = func.apply(context, args); + } + }; + callNow = immediate && !timeout; + clearTimeout(timeout); + timeout = setTimeout(later, wait); + if (callNow) { + result = func.apply(context, args); + } + return result; + }; + }, + throttle: function(func, wait) { + var context, args, timeout, result, previous, later; + previous = 0; + later = function() { + previous = new Date(); + timeout = null; + result = func.apply(context, args); + }; + return function() { + var now = new Date(), remaining = wait - (now - previous); + context = this; + args = arguments; + if (remaining <= 0) { + clearTimeout(timeout); + timeout = null; + previous = now; + result = func.apply(context, args); + } else if (!timeout) { + timeout = setTimeout(later, remaining); + } + return result; + }; + }, + stringify: function(val) { + return _.isString(val) ? val : JSON.stringify(val); + }, + guid: function() { + function _p8(s) { + var p = (Math.random().toString(16) + "000000000").substr(2, 8); + return s ? "-" + p.substr(0, 4) + "-" + p.substr(4, 4) : p; + } + return "tt-" + _p8() + _p8(true) + _p8(true) + _p8(); + }, + noop: function() {} + }; + }(); + var WWW = function() { + "use strict"; + var defaultClassNames = { + wrapper: "twitter-typeahead", + input: "tt-input", + hint: "tt-hint", + menu: "tt-menu", + dataset: "tt-dataset", + suggestion: "tt-suggestion", + selectable: "tt-selectable", + empty: "tt-empty", + open: "tt-open", + cursor: "tt-cursor", + highlight: "tt-highlight" + }; + return build; + function build(o) { + var www, classes; + classes = _.mixin({}, defaultClassNames, o); + www = { + css: buildCss(), + classes: classes, + html: buildHtml(classes), + selectors: buildSelectors(classes) + }; + return { + css: www.css, + html: www.html, + classes: www.classes, + selectors: www.selectors, + mixin: function(o) { + _.mixin(o, www); + } + }; + } + function buildHtml(c) { + return { + wrapper: '', + menu: '
' + }; + } + function buildSelectors(classes) { + var selectors = {}; + _.each(classes, function(v, k) { + selectors[k] = "." + v; + }); + return selectors; + } + function buildCss() { + var css = { + wrapper: { + position: "relative", + display: "inline-block" + }, + hint: { + position: "absolute", + top: "0", + left: "0", + borderColor: "transparent", + boxShadow: "none", + opacity: "1" + }, + input: { + position: "relative", + verticalAlign: "top", + backgroundColor: "transparent" + }, + inputWithNoHint: { + position: "relative", + verticalAlign: "top" + }, + menu: { + position: "absolute", + top: "100%", + left: "0", + zIndex: "100", + display: "none" + }, + ltr: { + left: "0", + right: "auto" + }, + rtl: { + left: "auto", + right: " 0" + } + }; + if (_.isMsie()) { + _.mixin(css.input, { + backgroundImage: "url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)" + }); + } + return css; + } + }(); + var EventBus = function() { + "use strict"; + var namespace, deprecationMap; + namespace = "typeahead:"; + deprecationMap = { + render: "rendered", + cursorchange: "cursorchanged", + select: "selected", + autocomplete: "autocompleted" + }; + function EventBus(o) { + if (!o || !o.el) { + $.error("EventBus initialized without el"); + } + this.$el = $(o.el); + } + _.mixin(EventBus.prototype, { + _trigger: function(type, args) { + var $e = $.Event(namespace + type); + this.$el.trigger.call(this.$el, $e, args || []); + return $e; + }, + before: function(type) { + var args, $e; + args = [].slice.call(arguments, 1); + $e = this._trigger("before" + type, args); + return $e.isDefaultPrevented(); + }, + trigger: function(type) { + var deprecatedType; + this._trigger(type, [].slice.call(arguments, 1)); + if (deprecatedType = deprecationMap[type]) { + this._trigger(deprecatedType, [].slice.call(arguments, 1)); + } + } + }); + return EventBus; + }(); + var EventEmitter = function() { + "use strict"; + var splitter = /\s+/, nextTick = getNextTick(); + return { + onSync: onSync, + onAsync: onAsync, + off: off, + trigger: trigger + }; + function on(method, types, cb, context) { + var type; + if (!cb) { + return this; + } + types = types.split(splitter); + cb = context ? bindContext(cb, context) : cb; + this._callbacks = this._callbacks || {}; + while (type = types.shift()) { + this._callbacks[type] = this._callbacks[type] || { + sync: [], + async: [] + }; + this._callbacks[type][method].push(cb); + } + return this; + } + function onAsync(types, cb, context) { + return on.call(this, "async", types, cb, context); + } + function onSync(types, cb, context) { + return on.call(this, "sync", types, cb, context); + } + function off(types) { + var type; + if (!this._callbacks) { + return this; + } + types = types.split(splitter); + while (type = types.shift()) { + delete this._callbacks[type]; + } + return this; + } + function trigger(types) { + var type, callbacks, args, syncFlush, asyncFlush; + if (!this._callbacks) { + return this; + } + types = types.split(splitter); + args = [].slice.call(arguments, 1); + while ((type = types.shift()) && (callbacks = this._callbacks[type])) { + syncFlush = getFlush(callbacks.sync, this, [ type ].concat(args)); + asyncFlush = getFlush(callbacks.async, this, [ type ].concat(args)); + syncFlush() && nextTick(asyncFlush); + } + return this; + } + function getFlush(callbacks, context, args) { + return flush; + function flush() { + var cancelled; + for (var i = 0, len = callbacks.length; !cancelled && i < len; i += 1) { + cancelled = callbacks[i].apply(context, args) === false; + } + return !cancelled; + } + } + function getNextTick() { + var nextTickFn; + if (window.setImmediate) { + nextTickFn = function nextTickSetImmediate(fn) { + setImmediate(function() { + fn(); + }); + }; + } else { + nextTickFn = function nextTickSetTimeout(fn) { + setTimeout(function() { + fn(); + }, 0); + }; + } + return nextTickFn; + } + function bindContext(fn, context) { + return fn.bind ? fn.bind(context) : function() { + fn.apply(context, [].slice.call(arguments, 0)); + }; + } + }(); + var highlight = function(doc) { + "use strict"; + var defaults = { + node: null, + pattern: null, + tagName: "strong", + className: null, + wordsOnly: false, + caseSensitive: false, + diacriticInsensitive: false + }; + var accented = { + A: "[AaªÀ-Åà-åĀ-ąǍǎȀ-ȃȦȧᴬᵃḀḁẚẠ-ảₐ℀℁℻⒜Ⓐⓐ㍱-㍴㎀-㎄㎈㎉㎩-㎯㏂㏊㏟㏿Ａａ]", + B: "[BbᴮᵇḂ-ḇℬ⒝Ⓑⓑ㍴㎅-㎇㏃㏈㏔㏝Ｂｂ]", + C: "[CcÇçĆ-čᶜ℀ℂ℃℅℆ℭⅭⅽ⒞Ⓒⓒ㍶㎈㎉㎝㎠㎤㏄-㏇Ｃｃ]", + D: "[DdĎďDŽ-džDZ-dzᴰᵈḊ-ḓⅅⅆⅮⅾ⒟Ⓓⓓ㋏㍲㍷-㍹㎗㎭-㎯㏅㏈Ｄｄ]", + E: "[EeÈ-Ëè-ëĒ-ěȄ-ȇȨȩᴱᵉḘ-ḛẸ-ẽₑ℡ℯℰⅇ⒠Ⓔⓔ㉐㋍㋎Ｅｅ]", + F: "[FfᶠḞḟ℉ℱ℻⒡Ⓕⓕ㎊-㎌㎙ff-fflＦｆ]", + G: "[GgĜ-ģǦǧǴǵᴳᵍḠḡℊ⒢Ⓖⓖ㋌㋍㎇㎍-㎏㎓㎬㏆㏉㏒㏿Ｇｇ]", + H: "[HhĤĥȞȟʰᴴḢ-ḫẖℋ-ℎ⒣Ⓗⓗ㋌㍱㎐-㎔㏊㏋㏗Ｈｈ]", + I: "[IiÌ-Ïì-ïĨ-İIJijǏǐȈ-ȋᴵᵢḬḭỈ-ịⁱℐℑℹⅈⅠ-ⅣⅥ-ⅨⅪⅫⅰ-ⅳⅵ-ⅸⅺⅻ⒤Ⓘⓘ㍺㏌㏕fiffiＩｉ]", + J: "[JjIJ-ĵLJ-njǰʲᴶⅉ⒥ⒿⓙⱼＪｊ]", + K: "[KkĶķǨǩᴷᵏḰ-ḵK⒦Ⓚⓚ㎄㎅㎉㎏㎑㎘㎞㎢㎦㎪㎸㎾㏀㏆㏍-㏏Ｋｋ]", + L: "[LlĹ-ŀLJ-ljˡᴸḶḷḺ-ḽℒℓ℡Ⅼⅼ⒧Ⓛⓛ㋏㎈㎉㏐-㏓㏕㏖㏿flfflＬｌ]", + M: "[MmᴹᵐḾ-ṃ℠™ℳⅯⅿ⒨Ⓜⓜ㍷-㍹㎃㎆㎎㎒㎖㎙-㎨㎫㎳㎷㎹㎽㎿㏁㏂㏎㏐㏔-㏖㏘㏙㏞㏟Ｍｍ]", + N: "[NnÑñŃ-ʼnNJ-njǸǹᴺṄ-ṋⁿℕ№⒩Ⓝⓝ㎁㎋㎚㎱㎵㎻㏌㏑Ｎｎ]", + O: "[OoºÒ-Öò-öŌ-őƠơǑǒǪǫȌ-ȏȮȯᴼᵒỌ-ỏₒ℅№ℴ⒪Ⓞⓞ㍵㏇㏒㏖Ｏｏ]", + P: "[PpᴾᵖṔ-ṗℙ⒫Ⓟⓟ㉐㍱㍶㎀㎊㎩-㎬㎰㎴㎺㏋㏗-㏚Ｐｐ]", + Q: "[Qqℚ⒬Ⓠⓠ㏃Ｑｑ]", + R: "[RrŔ-řȐ-ȓʳᴿᵣṘ-ṛṞṟ₨ℛ-ℝ⒭Ⓡⓡ㋍㍴㎭-㎯㏚㏛Ｒｒ]", + S: "[SsŚ-šſȘșˢṠ-ṣ₨℁℠⒮Ⓢⓢ㎧㎨㎮-㎳㏛㏜stＳｓ]", + T: "[TtŢ-ťȚțᵀᵗṪ-ṱẗ℡™⒯Ⓣⓣ㉐㋏㎔㏏ſtstＴｔ]", + U: "[UuÙ-Üù-üŨ-ųƯưǓǔȔ-ȗᵁᵘᵤṲ-ṷỤ-ủ℆⒰Ⓤⓤ㍳㍺Ｕｕ]", + V: "[VvᵛᵥṼ-ṿⅣ-Ⅷⅳ-ⅷ⒱Ⓥⓥⱽ㋎㍵㎴-㎹㏜㏞Ｖｖ]", + W: "[WwŴŵʷᵂẀ-ẉẘ⒲Ⓦⓦ㎺-㎿㏝Ｗｗ]", + X: "[XxˣẊ-ẍₓ℻Ⅸ-Ⅻⅸ-ⅻ⒳Ⓧⓧ㏓Ｘｘ]", + Y: "[YyÝýÿŶ-ŸȲȳʸẎẏẙỲ-ỹ⒴Ⓨⓨ㏉Ｙｙ]", + Z: "[ZzŹ-žDZ-dzᶻẐ-ẕℤℨ⒵Ⓩⓩ㎐-㎔Ｚｚ]" + }; + return function hightlight(o) { + var regex; + o = _.mixin({}, defaults, o); + if (!o.node || !o.pattern) { + return; + } + o.pattern = _.isArray(o.pattern) ? o.pattern : [ o.pattern ]; + regex = getRegex(o.pattern, o.caseSensitive, o.wordsOnly, o.diacriticInsensitive); + traverse(o.node, hightlightTextNode); + function hightlightTextNode(textNode) { + var match, patternNode, wrapperNode; + if (match = regex.exec(textNode.data)) { + wrapperNode = doc.createElement(o.tagName); + o.className && (wrapperNode.className = o.className); + patternNode = textNode.splitText(match.index); + patternNode.splitText(match[0].length); + wrapperNode.appendChild(patternNode.cloneNode(true)); + textNode.parentNode.replaceChild(wrapperNode, patternNode); + } + return !!match; + } + function traverse(el, hightlightTextNode) { + var childNode, TEXT_NODE_TYPE = 3; + for (var i = 0; i < el.childNodes.length; i++) { + childNode = el.childNodes[i]; + if (childNode.nodeType === TEXT_NODE_TYPE) { + i += hightlightTextNode(childNode) ? 1 : 0; + } else { + traverse(childNode, hightlightTextNode); + } + } + } + }; + function accent_replacer(chr) { + return accented[chr.toUpperCase()] || chr; + } + function getRegex(patterns, caseSensitive, wordsOnly, diacriticInsensitive) { + var escapedPatterns = [], regexStr; + for (var i = 0, len = patterns.length; i < len; i++) { + var escapedWord = _.escapeRegExChars(patterns[i]); + if (diacriticInsensitive) { + escapedWord = escapedWord.replace(/\S/g, accent_replacer); + } + escapedPatterns.push(escapedWord); + } + regexStr = wordsOnly ? "\\b(" + escapedPatterns.join("|") + ")\\b" : "(" + escapedPatterns.join("|") + ")"; + return caseSensitive ? new RegExp(regexStr) : new RegExp(regexStr, "i"); + } + }(window.document); + var Input = function() { + "use strict"; + var specialKeyCodeMap; + specialKeyCodeMap = { + 9: "tab", + 27: "esc", + 37: "left", + 39: "right", + 13: "enter", + 38: "up", + 40: "down" + }; + function Input(o, www) { + var id; + o = o || {}; + if (!o.input) { + $.error("input is missing"); + } + www.mixin(this); + this.$hint = $(o.hint); + this.$input = $(o.input); + this.$menu = $(o.menu); + id = this.$input.attr("id") || _.guid(); + this.$menu.attr("id", id + "_listbox"); + this.$hint.attr({ + "aria-hidden": true + }); + this.$input.attr({ + "aria-owns": id + "_listbox", + role: "combobox", + "aria-autocomplete": "list", + "aria-expanded": false + }); + this.query = this.$input.val(); + this.queryWhenFocused = this.hasFocus() ? this.query : null; + this.$overflowHelper = buildOverflowHelper(this.$input); + this._checkLanguageDirection(); + if (this.$hint.length === 0) { + this.setHint = this.getHint = this.clearHint = this.clearHintIfInvalid = _.noop; + } + this.onSync("cursorchange", this._updateDescendent); + } + Input.normalizeQuery = function(str) { + return _.toStr(str).replace(/^\s*/g, "").replace(/\s{2,}/g, " "); + }; + _.mixin(Input.prototype, EventEmitter, { + _onBlur: function onBlur() { + this.resetInputValue(); + this.trigger("blurred"); + }, + _onFocus: function onFocus() { + this.queryWhenFocused = this.query; + this.trigger("focused"); + }, + _onKeydown: function onKeydown($e) { + var keyName = specialKeyCodeMap[$e.which || $e.keyCode]; + this._managePreventDefault(keyName, $e); + if (keyName && this._shouldTrigger(keyName, $e)) { + this.trigger(keyName + "Keyed", $e); + } + }, + _onInput: function onInput() { + this._setQuery(this.getInputValue()); + this.clearHintIfInvalid(); + this._checkLanguageDirection(); + }, + _managePreventDefault: function managePreventDefault(keyName, $e) { + var preventDefault; + switch (keyName) { + case "up": + case "down": + preventDefault = !withModifier($e); + break; + + default: + preventDefault = false; + } + preventDefault && $e.preventDefault(); + }, + _shouldTrigger: function shouldTrigger(keyName, $e) { + var trigger; + switch (keyName) { + case "tab": + trigger = !withModifier($e); + break; + + default: + trigger = true; + } + return trigger; + }, + _checkLanguageDirection: function checkLanguageDirection() { + var dir = (this.$input.css("direction") || "ltr").toLowerCase(); + if (this.dir !== dir) { + this.dir = dir; + this.$hint.attr("dir", dir); + this.trigger("langDirChanged", dir); + } + }, + _setQuery: function setQuery(val, silent) { + var areEquivalent, hasDifferentWhitespace; + areEquivalent = areQueriesEquivalent(val, this.query); + hasDifferentWhitespace = areEquivalent ? this.query.length !== val.length : false; + this.query = val; + if (!silent && !areEquivalent) { + this.trigger("queryChanged", this.query); + } else if (!silent && hasDifferentWhitespace) { + this.trigger("whitespaceChanged", this.query); + } + }, + _updateDescendent: function updateDescendent(event, id) { + this.$input.attr("aria-activedescendant", id); + }, + bind: function() { + var that = this, onBlur, onFocus, onKeydown, onInput; + onBlur = _.bind(this._onBlur, this); + onFocus = _.bind(this._onFocus, this); + onKeydown = _.bind(this._onKeydown, this); + onInput = _.bind(this._onInput, this); + this.$input.on("blur.tt", onBlur).on("focus.tt", onFocus).on("keydown.tt", onKeydown); + if (!_.isMsie() || _.isMsie() > 9) { + this.$input.on("input.tt", onInput); + } else { + this.$input.on("keydown.tt keypress.tt cut.tt paste.tt", function($e) { + if (specialKeyCodeMap[$e.which || $e.keyCode]) { + return; + } + _.defer(_.bind(that._onInput, that, $e)); + }); + } + return this; + }, + focus: function focus() { + this.$input.focus(); + }, + blur: function blur() { + this.$input.blur(); + }, + getLangDir: function getLangDir() { + return this.dir; + }, + getQuery: function getQuery() { + return this.query || ""; + }, + setQuery: function setQuery(val, silent) { + this.setInputValue(val); + this._setQuery(val, silent); + }, + hasQueryChangedSinceLastFocus: function hasQueryChangedSinceLastFocus() { + return this.query !== this.queryWhenFocused; + }, + getInputValue: function getInputValue() { + return this.$input.val(); + }, + setInputValue: function setInputValue(value) { + this.$input.val(value); + this.clearHintIfInvalid(); + this._checkLanguageDirection(); + }, + resetInputValue: function resetInputValue() { + this.setInputValue(this.query); + }, + getHint: function getHint() { + return this.$hint.val(); + }, + setHint: function setHint(value) { + this.$hint.val(value); + }, + clearHint: function clearHint() { + this.setHint(""); + }, + clearHintIfInvalid: function clearHintIfInvalid() { + var val, hint, valIsPrefixOfHint, isValid; + val = this.getInputValue(); + hint = this.getHint(); + valIsPrefixOfHint = val !== hint && hint.indexOf(val) === 0; + isValid = val !== "" && valIsPrefixOfHint && !this.hasOverflow(); + !isValid && this.clearHint(); + }, + hasFocus: function hasFocus() { + return this.$input.is(":focus"); + }, + hasOverflow: function hasOverflow() { + var constraint = this.$input.width() - 2; + this.$overflowHelper.text(this.getInputValue()); + return this.$overflowHelper.width() >= constraint; + }, + isCursorAtEnd: function() { + var valueLength, selectionStart, range; + valueLength = this.$input.val().length; + selectionStart = this.$input[0].selectionStart; + if (_.isNumber(selectionStart)) { + return selectionStart === valueLength; + } else if (document.selection) { + range = document.selection.createRange(); + range.moveStart("character", -valueLength); + return valueLength === range.text.length; + } + return true; + }, + destroy: function destroy() { + this.$hint.off(".tt"); + this.$input.off(".tt"); + this.$overflowHelper.remove(); + this.$hint = this.$input = this.$overflowHelper = $("
"); + }, + setAriaExpanded: function setAriaExpanded(value) { + this.$input.attr("aria-expanded", value); + } + }); + return Input; + function buildOverflowHelper($input) { + return $('').css({ + position: "absolute", + visibility: "hidden", + whiteSpace: "pre", + fontFamily: $input.css("font-family"), + fontSize: $input.css("font-size"), + fontStyle: $input.css("font-style"), + fontVariant: $input.css("font-variant"), + fontWeight: $input.css("font-weight"), + wordSpacing: $input.css("word-spacing"), + letterSpacing: $input.css("letter-spacing"), + textIndent: $input.css("text-indent"), + textRendering: $input.css("text-rendering"), + textTransform: $input.css("text-transform") + }).insertAfter($input); + } + function areQueriesEquivalent(a, b) { + return Input.normalizeQuery(a) === Input.normalizeQuery(b); + } + function withModifier($e) { + return $e.altKey || $e.ctrlKey || $e.metaKey || $e.shiftKey; + } + }(); + var Dataset = function() { + "use strict"; + var keys, nameGenerator; + keys = { + dataset: "tt-selectable-dataset", + val: "tt-selectable-display", + obj: "tt-selectable-object" + }; + nameGenerator = _.getIdGenerator(); + function Dataset(o, www) { + o = o || {}; + o.templates = o.templates || {}; + o.templates.notFound = o.templates.notFound || o.templates.empty; + if (!o.source) { + $.error("missing source"); + } + if (!o.node) { + $.error("missing node"); + } + if (o.name && !isValidName(o.name)) { + $.error("invalid dataset name: " + o.name); + } + www.mixin(this); + this.highlight = !!o.highlight; + this.name = _.toStr(o.name || nameGenerator()); + this.limit = o.limit || 5; + this.displayFn = getDisplayFn(o.display || o.displayKey); + this.templates = getTemplates(o.templates, this.displayFn); + this.source = o.source.__ttAdapter ? o.source.__ttAdapter() : o.source; + this.async = _.isUndefined(o.async) ? this.source.length > 2 : !!o.async; + this._resetLastSuggestion(); + this.$el = $(o.node).attr("role", "presentation").addClass(this.classes.dataset).addClass(this.classes.dataset + "-" + this.name); + } + Dataset.extractData = function extractData(el) { + var $el = $(el); + if ($el.data(keys.obj)) { + return { + dataset: $el.data(keys.dataset) || "", + val: $el.data(keys.val) || "", + obj: $el.data(keys.obj) || null + }; + } + return null; + }; + _.mixin(Dataset.prototype, EventEmitter, { + _overwrite: function overwrite(query, suggestions) { + suggestions = suggestions || []; + if (suggestions.length) { + this._renderSuggestions(query, suggestions); + } else if (this.async && this.templates.pending) { + this._renderPending(query); + } else if (!this.async && this.templates.notFound) { + this._renderNotFound(query); + } else { + this._empty(); + } + this.trigger("rendered", suggestions, false, this.name); + }, + _append: function append(query, suggestions) { + suggestions = suggestions || []; + if (suggestions.length && this.$lastSuggestion.length) { + this._appendSuggestions(query, suggestions); + } else if (suggestions.length) { + this._renderSuggestions(query, suggestions); + } else if (!this.$lastSuggestion.length && this.templates.notFound) { + this._renderNotFound(query); + } + this.trigger("rendered", suggestions, true, this.name); + }, + _renderSuggestions: function renderSuggestions(query, suggestions) { + var $fragment; + $fragment = this._getSuggestionsFragment(query, suggestions); + this.$lastSuggestion = $fragment.children().last(); + this.$el.html($fragment).prepend(this._getHeader(query, suggestions)).append(this._getFooter(query, suggestions)); + }, + _appendSuggestions: function appendSuggestions(query, suggestions) { + var $fragment, $lastSuggestion; + $fragment = this._getSuggestionsFragment(query, suggestions); + $lastSuggestion = $fragment.children().last(); + this.$lastSuggestion.after($fragment); + this.$lastSuggestion = $lastSuggestion; + }, + _renderPending: function renderPending(query) { + var template = this.templates.pending; + this._resetLastSuggestion(); + template && this.$el.html(template({ + query: query, + dataset: this.name + })); + }, + _renderNotFound: function renderNotFound(query) { + var template = this.templates.notFound; + this._resetLastSuggestion(); + template && this.$el.html(template({ + query: query, + dataset: this.name + })); + }, + _empty: function empty() { + this.$el.empty(); + this._resetLastSuggestion(); + }, + _getSuggestionsFragment: function getSuggestionsFragment(query, suggestions) { + var that = this, fragment; + fragment = document.createDocumentFragment(); + _.each(suggestions, function getSuggestionNode(suggestion) { + var $el, context; + context = that._injectQuery(query, suggestion); + $el = $(that.templates.suggestion(context)).data(keys.dataset, that.name).data(keys.obj, suggestion).data(keys.val, that.displayFn(suggestion)).addClass(that.classes.suggestion + " " + that.classes.selectable); + fragment.appendChild($el[0]); + }); + this.highlight && highlight({ + className: this.classes.highlight, + node: fragment, + pattern: query + }); + return $(fragment); + }, + _getFooter: function getFooter(query, suggestions) { + return this.templates.footer ? this.templates.footer({ + query: query, + suggestions: suggestions, + dataset: this.name + }) : null; + }, + _getHeader: function getHeader(query, suggestions) { + return this.templates.header ? this.templates.header({ + query: query, + suggestions: suggestions, + dataset: this.name + }) : null; + }, + _resetLastSuggestion: function resetLastSuggestion() { + this.$lastSuggestion = $(); + }, + _injectQuery: function injectQuery(query, obj) { + return _.isObject(obj) ? _.mixin({ + _query: query + }, obj) : obj; + }, + update: function update(query) { + var that = this, canceled = false, syncCalled = false, rendered = 0; + this.cancel(); + this.cancel = function cancel() { + canceled = true; + that.cancel = $.noop; + that.async && that.trigger("asyncCanceled", query, that.name); + }; + this.source(query, sync, async); + !syncCalled && sync([]); + function sync(suggestions) { + if (syncCalled) { + return; + } + syncCalled = true; + suggestions = (suggestions || []).slice(0, that.limit); + rendered = suggestions.length; + that._overwrite(query, suggestions); + if (rendered < that.limit && that.async) { + that.trigger("asyncRequested", query, that.name); + } + } + function async(suggestions) { + suggestions = suggestions || []; + if (!canceled && rendered < that.limit) { + that.cancel = $.noop; + var idx = Math.abs(rendered - that.limit); + rendered += idx; + that._append(query, suggestions.slice(0, idx)); + that.async && that.trigger("asyncReceived", query, that.name); + } + } + }, + cancel: $.noop, + clear: function clear() { + this._empty(); + this.cancel(); + this.trigger("cleared"); + }, + isEmpty: function isEmpty() { + return this.$el.is(":empty"); + }, + destroy: function destroy() { + this.$el = $("
"); + } + }); + return Dataset; + function getDisplayFn(display) { + display = display || _.stringify; + return _.isFunction(display) ? display : displayFn; + function displayFn(obj) { + return obj[display]; + } + } + function getTemplates(templates, displayFn) { + return { + notFound: templates.notFound && _.templatify(templates.notFound), + pending: templates.pending && _.templatify(templates.pending), + header: templates.header && _.templatify(templates.header), + footer: templates.footer && _.templatify(templates.footer), + suggestion: templates.suggestion ? userSuggestionTemplate : suggestionTemplate + }; + function userSuggestionTemplate(context) { + var template = templates.suggestion; + return $(template(context)).attr("id", _.guid()); + } + function suggestionTemplate(context) { + return $('
').attr("id", _.guid()).text(displayFn(context)); + } + } + function isValidName(str) { + return /^[_a-zA-Z0-9-]+$/.test(str); + } + }(); + var Menu = function() { + "use strict"; + function Menu(o, www) { + var that = this; + o = o || {}; + if (!o.node) { + $.error("node is required"); + } + www.mixin(this); + this.$node = $(o.node); + this.query = null; + this.datasets = _.map(o.datasets, initializeDataset); + function initializeDataset(oDataset) { + var node = that.$node.find(oDataset.node).first(); + oDataset.node = node.length ? node : $("
").appendTo(that.$node); + return new Dataset(oDataset, www); + } + } + _.mixin(Menu.prototype, EventEmitter, { + _onSelectableClick: function onSelectableClick($e) { + this.trigger("selectableClicked", $($e.currentTarget)); + }, + _onRendered: function onRendered(type, dataset, suggestions, async) { + this.$node.toggleClass(this.classes.empty, this._allDatasetsEmpty()); + this.trigger("datasetRendered", dataset, suggestions, async); + }, + _onCleared: function onCleared() { + this.$node.toggleClass(this.classes.empty, this._allDatasetsEmpty()); + this.trigger("datasetCleared"); + }, + _propagate: function propagate() { + this.trigger.apply(this, arguments); + }, + _allDatasetsEmpty: function allDatasetsEmpty() { + return _.every(this.datasets, _.bind(function isDatasetEmpty(dataset) { + var isEmpty = dataset.isEmpty(); + this.$node.attr("aria-expanded", !isEmpty); + return isEmpty; + }, this)); + }, + _getSelectables: function getSelectables() { + return this.$node.find(this.selectors.selectable); + }, + _removeCursor: function _removeCursor() { + var $selectable = this.getActiveSelectable(); + $selectable && $selectable.removeClass(this.classes.cursor); + }, + _ensureVisible: function ensureVisible($el) { + var elTop, elBottom, nodeScrollTop, nodeHeight; + elTop = $el.position().top; + elBottom = elTop + $el.outerHeight(true); + nodeScrollTop = this.$node.scrollTop(); + nodeHeight = this.$node.height() + parseInt(this.$node.css("paddingTop"), 10) + parseInt(this.$node.css("paddingBottom"), 10); + if (elTop < 0) { + this.$node.scrollTop(nodeScrollTop + elTop); + } else if (nodeHeight < elBottom) { + this.$node.scrollTop(nodeScrollTop + (elBottom - nodeHeight)); + } + }, + bind: function() { + var that = this, onSelectableClick; + onSelectableClick = _.bind(this._onSelectableClick, this); + this.$node.on("click.tt", this.selectors.selectable, onSelectableClick); + this.$node.on("mouseover", this.selectors.selectable, function() { + that.setCursor($(this)); + }); + this.$node.on("mouseleave", function() { + that._removeCursor(); + }); + _.each(this.datasets, function(dataset) { + dataset.onSync("asyncRequested", that._propagate, that).onSync("asyncCanceled", that._propagate, that).onSync("asyncReceived", that._propagate, that).onSync("rendered", that._onRendered, that).onSync("cleared", that._onCleared, that); + }); + return this; + }, + isOpen: function isOpen() { + return this.$node.hasClass(this.classes.open); + }, + open: function open() { + this.$node.scrollTop(0); + this.$node.addClass(this.classes.open); + }, + close: function close() { + this.$node.attr("aria-expanded", false); + this.$node.removeClass(this.classes.open); + this._removeCursor(); + }, + setLanguageDirection: function setLanguageDirection(dir) { + this.$node.attr("dir", dir); + }, + selectableRelativeToCursor: function selectableRelativeToCursor(delta) { + var $selectables, $oldCursor, oldIndex, newIndex; + $oldCursor = this.getActiveSelectable(); + $selectables = this._getSelectables(); + oldIndex = $oldCursor ? $selectables.index($oldCursor) : -1; + newIndex = oldIndex + delta; + newIndex = (newIndex + 1) % ($selectables.length + 1) - 1; + newIndex = newIndex < -1 ? $selectables.length - 1 : newIndex; + return newIndex === -1 ? null : $selectables.eq(newIndex); + }, + setCursor: function setCursor($selectable) { + this._removeCursor(); + if ($selectable = $selectable && $selectable.first()) { + $selectable.addClass(this.classes.cursor); + this._ensureVisible($selectable); + } + }, + getSelectableData: function getSelectableData($el) { + return $el && $el.length ? Dataset.extractData($el) : null; + }, + getActiveSelectable: function getActiveSelectable() { + var $selectable = this._getSelectables().filter(this.selectors.cursor).first(); + return $selectable.length ? $selectable : null; + }, + getTopSelectable: function getTopSelectable() { + var $selectable = this._getSelectables().first(); + return $selectable.length ? $selectable : null; + }, + update: function update(query) { + var isValidUpdate = query !== this.query; + if (isValidUpdate) { + this.query = query; + _.each(this.datasets, updateDataset); + } + return isValidUpdate; + function updateDataset(dataset) { + dataset.update(query); + } + }, + empty: function empty() { + _.each(this.datasets, clearDataset); + this.query = null; + this.$node.addClass(this.classes.empty); + function clearDataset(dataset) { + dataset.clear(); + } + }, + destroy: function destroy() { + this.$node.off(".tt"); + this.$node = $("
"); + _.each(this.datasets, destroyDataset); + function destroyDataset(dataset) { + dataset.destroy(); + } + } + }); + return Menu; + }(); + var Status = function() { + "use strict"; + function Status(options) { + this.$el = $("", { + role: "status", + "aria-live": "polite" + }).css({ + position: "absolute", + padding: "0", + border: "0", + height: "1px", + width: "1px", + "margin-bottom": "-1px", + "margin-right": "-1px", + overflow: "hidden", + clip: "rect(0 0 0 0)", + "white-space": "nowrap" + }); + options.$input.after(this.$el); + _.each(options.menu.datasets, _.bind(function(dataset) { + if (dataset.onSync) { + dataset.onSync("rendered", _.bind(this.update, this)); + dataset.onSync("cleared", _.bind(this.cleared, this)); + } + }, this)); + } + _.mixin(Status.prototype, { + update: function update(event, suggestions) { + var length = suggestions.length; + var words; + if (length === 1) { + words = { + result: "result", + is: "is" + }; + } else { + words = { + result: "results", + is: "are" + }; + } + this.$el.text(length + " " + words.result + " " + words.is + " available, use up and down arrow keys to navigate."); + }, + cleared: function() { + this.$el.text(""); + } + }); + return Status; + }(); + var DefaultMenu = function() { + "use strict"; + var s = Menu.prototype; + function DefaultMenu() { + Menu.apply(this, [].slice.call(arguments, 0)); + } + _.mixin(DefaultMenu.prototype, Menu.prototype, { + open: function open() { + !this._allDatasetsEmpty() && this._show(); + return s.open.apply(this, [].slice.call(arguments, 0)); + }, + close: function close() { + this._hide(); + return s.close.apply(this, [].slice.call(arguments, 0)); + }, + _onRendered: function onRendered() { + if (this._allDatasetsEmpty()) { + this._hide(); + } else { + this.isOpen() && this._show(); + } + return s._onRendered.apply(this, [].slice.call(arguments, 0)); + }, + _onCleared: function onCleared() { + if (this._allDatasetsEmpty()) { + this._hide(); + } else { + this.isOpen() && this._show(); + } + return s._onCleared.apply(this, [].slice.call(arguments, 0)); + }, + setLanguageDirection: function setLanguageDirection(dir) { + this.$node.css(dir === "ltr" ? this.css.ltr : this.css.rtl); + return s.setLanguageDirection.apply(this, [].slice.call(arguments, 0)); + }, + _hide: function hide() { + this.$node.hide(); + }, + _show: function show() { + this.$node.css("display", "block"); + } + }); + return DefaultMenu; + }(); + var Typeahead = function() { + "use strict"; + function Typeahead(o, www) { + var onFocused, onBlurred, onEnterKeyed, onTabKeyed, onEscKeyed, onUpKeyed, onDownKeyed, onLeftKeyed, onRightKeyed, onQueryChanged, onWhitespaceChanged; + o = o || {}; + if (!o.input) { + $.error("missing input"); + } + if (!o.menu) { + $.error("missing menu"); + } + if (!o.eventBus) { + $.error("missing event bus"); + } + www.mixin(this); + this.eventBus = o.eventBus; + this.minLength = _.isNumber(o.minLength) ? o.minLength : 1; + this.input = o.input; + this.menu = o.menu; + this.enabled = true; + this.autoselect = !!o.autoselect; + this.active = false; + this.input.hasFocus() && this.activate(); + this.dir = this.input.getLangDir(); + this._hacks(); + this.menu.bind().onSync("selectableClicked", this._onSelectableClicked, this).onSync("asyncRequested", this._onAsyncRequested, this).onSync("asyncCanceled", this._onAsyncCanceled, this).onSync("asyncReceived", this._onAsyncReceived, this).onSync("datasetRendered", this._onDatasetRendered, this).onSync("datasetCleared", this._onDatasetCleared, this); + onFocused = c(this, "activate", "open", "_onFocused"); + onBlurred = c(this, "deactivate", "_onBlurred"); + onEnterKeyed = c(this, "isActive", "isOpen", "_onEnterKeyed"); + onTabKeyed = c(this, "isActive", "isOpen", "_onTabKeyed"); + onEscKeyed = c(this, "isActive", "_onEscKeyed"); + onUpKeyed = c(this, "isActive", "open", "_onUpKeyed"); + onDownKeyed = c(this, "isActive", "open", "_onDownKeyed"); + onLeftKeyed = c(this, "isActive", "isOpen", "_onLeftKeyed"); + onRightKeyed = c(this, "isActive", "isOpen", "_onRightKeyed"); + onQueryChanged = c(this, "_openIfActive", "_onQueryChanged"); + onWhitespaceChanged = c(this, "_openIfActive", "_onWhitespaceChanged"); + this.input.bind().onSync("focused", onFocused, this).onSync("blurred", onBlurred, this).onSync("enterKeyed", onEnterKeyed, this).onSync("tabKeyed", onTabKeyed, this).onSync("escKeyed", onEscKeyed, this).onSync("upKeyed", onUpKeyed, this).onSync("downKeyed", onDownKeyed, this).onSync("leftKeyed", onLeftKeyed, this).onSync("rightKeyed", onRightKeyed, this).onSync("queryChanged", onQueryChanged, this).onSync("whitespaceChanged", onWhitespaceChanged, this).onSync("langDirChanged", this._onLangDirChanged, this); + } + _.mixin(Typeahead.prototype, { + _hacks: function hacks() { + var $input, $menu; + $input = this.input.$input || $("
"); + $menu = this.menu.$node || $("
"); + $input.on("blur.tt", function($e) { + var active, isActive, hasActive; + active = document.activeElement; + isActive = $menu.is(active); + hasActive = $menu.has(active).length > 0; + if (_.isMsie() && (isActive || hasActive)) { + $e.preventDefault(); + $e.stopImmediatePropagation(); + _.defer(function() { + $input.focus(); + }); + } + }); + $menu.on("mousedown.tt", function($e) { + $e.preventDefault(); + }); + }, + _onSelectableClicked: function onSelectableClicked(type, $el) { + this.select($el); + }, + _onDatasetCleared: function onDatasetCleared() { + this._updateHint(); + }, + _onDatasetRendered: function onDatasetRendered(type, suggestions, async, dataset) { + this._updateHint(); + if (this.autoselect) { + var cursorClass = this.selectors.cursor.substr(1); + this.menu.$node.find(this.selectors.suggestion).first().addClass(cursorClass); + } + this.eventBus.trigger("render", suggestions, async, dataset); + }, + _onAsyncRequested: function onAsyncRequested(type, dataset, query) { + this.eventBus.trigger("asyncrequest", query, dataset); + }, + _onAsyncCanceled: function onAsyncCanceled(type, dataset, query) { + this.eventBus.trigger("asynccancel", query, dataset); + }, + _onAsyncReceived: function onAsyncReceived(type, dataset, query) { + this.eventBus.trigger("asyncreceive", query, dataset); + }, + _onFocused: function onFocused() { + this._minLengthMet() && this.menu.update(this.input.getQuery()); + }, + _onBlurred: function onBlurred() { + if (this.input.hasQueryChangedSinceLastFocus()) { + this.eventBus.trigger("change", this.input.getQuery()); + } + }, + _onEnterKeyed: function onEnterKeyed(type, $e) { + var $selectable; + if ($selectable = this.menu.getActiveSelectable()) { + if (this.select($selectable)) { + $e.preventDefault(); + $e.stopPropagation(); + } + } else if (this.autoselect) { + if (this.select(this.menu.getTopSelectable())) { + $e.preventDefault(); + $e.stopPropagation(); + } + } + }, + _onTabKeyed: function onTabKeyed(type, $e) { + var $selectable; + if ($selectable = this.menu.getActiveSelectable()) { + this.select($selectable) && $e.preventDefault(); + } else if (this.autoselect) { + if ($selectable = this.menu.getTopSelectable()) { + this.autocomplete($selectable) && $e.preventDefault(); + } + } + }, + _onEscKeyed: function onEscKeyed() { + this.close(); + }, + _onUpKeyed: function onUpKeyed() { + this.moveCursor(-1); + }, + _onDownKeyed: function onDownKeyed() { + this.moveCursor(+1); + }, + _onLeftKeyed: function onLeftKeyed() { + if (this.dir === "rtl" && this.input.isCursorAtEnd()) { + this.autocomplete(this.menu.getActiveSelectable() || this.menu.getTopSelectable()); + } + }, + _onRightKeyed: function onRightKeyed() { + if (this.dir === "ltr" && this.input.isCursorAtEnd()) { + this.autocomplete(this.menu.getActiveSelectable() || this.menu.getTopSelectable()); + } + }, + _onQueryChanged: function onQueryChanged(e, query) { + this._minLengthMet(query) ? this.menu.update(query) : this.menu.empty(); + }, + _onWhitespaceChanged: function onWhitespaceChanged() { + this._updateHint(); + }, + _onLangDirChanged: function onLangDirChanged(e, dir) { + if (this.dir !== dir) { + this.dir = dir; + this.menu.setLanguageDirection(dir); + } + }, + _openIfActive: function openIfActive() { + this.isActive() && this.open(); + }, + _minLengthMet: function minLengthMet(query) { + query = _.isString(query) ? query : this.input.getQuery() || ""; + return query.length >= this.minLength; + }, + _updateHint: function updateHint() { + var $selectable, data, val, query, escapedQuery, frontMatchRegEx, match; + $selectable = this.menu.getTopSelectable(); + data = this.menu.getSelectableData($selectable); + val = this.input.getInputValue(); + if (data && !_.isBlankString(val) && !this.input.hasOverflow()) { + query = Input.normalizeQuery(val); + escapedQuery = _.escapeRegExChars(query); + frontMatchRegEx = new RegExp("^(?:" + escapedQuery + ")(.+$)", "i"); + match = frontMatchRegEx.exec(data.val); + match && this.input.setHint(val + match[1]); + } else { + this.input.clearHint(); + } + }, + isEnabled: function isEnabled() { + return this.enabled; + }, + enable: function enable() { + this.enabled = true; + }, + disable: function disable() { + this.enabled = false; + }, + isActive: function isActive() { + return this.active; + }, + activate: function activate() { + if (this.isActive()) { + return true; + } else if (!this.isEnabled() || this.eventBus.before("active")) { + return false; + } else { + this.active = true; + this.eventBus.trigger("active"); + return true; + } + }, + deactivate: function deactivate() { + if (!this.isActive()) { + return true; + } else if (this.eventBus.before("idle")) { + return false; + } else { + this.active = false; + this.close(); + this.eventBus.trigger("idle"); + return true; + } + }, + isOpen: function isOpen() { + return this.menu.isOpen(); + }, + open: function open() { + if (!this.isOpen() && !this.eventBus.before("open")) { + this.input.setAriaExpanded(true); + this.menu.open(); + this._updateHint(); + this.eventBus.trigger("open"); + } + return this.isOpen(); + }, + close: function close() { + if (this.isOpen() && !this.eventBus.before("close")) { + this.input.setAriaExpanded(false); + this.menu.close(); + this.input.clearHint(); + this.input.resetInputValue(); + this.eventBus.trigger("close"); + } + return !this.isOpen(); + }, + setVal: function setVal(val) { + this.input.setQuery(_.toStr(val)); + }, + getVal: function getVal() { + return this.input.getQuery(); + }, + select: function select($selectable) { + var data = this.menu.getSelectableData($selectable); + if (data && !this.eventBus.before("select", data.obj, data.dataset)) { + this.input.setQuery(data.val, true); + this.eventBus.trigger("select", data.obj, data.dataset); + this.close(); + return true; + } + return false; + }, + autocomplete: function autocomplete($selectable) { + var query, data, isValid; + query = this.input.getQuery(); + data = this.menu.getSelectableData($selectable); + isValid = data && query !== data.val; + if (isValid && !this.eventBus.before("autocomplete", data.obj, data.dataset)) { + this.input.setQuery(data.val); + this.eventBus.trigger("autocomplete", data.obj, data.dataset); + return true; + } + return false; + }, + moveCursor: function moveCursor(delta) { + var query, $candidate, data, suggestion, datasetName, cancelMove, id; + query = this.input.getQuery(); + $candidate = this.menu.selectableRelativeToCursor(delta); + data = this.menu.getSelectableData($candidate); + suggestion = data ? data.obj : null; + datasetName = data ? data.dataset : null; + id = $candidate ? $candidate.attr("id") : null; + this.input.trigger("cursorchange", id); + cancelMove = this._minLengthMet() && this.menu.update(query); + if (!cancelMove && !this.eventBus.before("cursorchange", suggestion, datasetName)) { + this.menu.setCursor($candidate); + if (data) { + if (typeof data.val === "string") { + this.input.setInputValue(data.val); + } + } else { + this.input.resetInputValue(); + this._updateHint(); + } + this.eventBus.trigger("cursorchange", suggestion, datasetName); + return true; + } + return false; + }, + destroy: function destroy() { + this.input.destroy(); + this.menu.destroy(); + } + }); + return Typeahead; + function c(ctx) { + var methods = [].slice.call(arguments, 1); + return function() { + var args = [].slice.call(arguments); + _.each(methods, function(method) { + return ctx[method].apply(ctx, args); + }); + }; + } + }(); + (function() { + "use strict"; + var old, keys, methods; + old = $.fn.typeahead; + keys = { + www: "tt-www", + attrs: "tt-attrs", + typeahead: "tt-typeahead" + }; + methods = { + initialize: function initialize(o, datasets) { + var www; + datasets = _.isArray(datasets) ? datasets : [].slice.call(arguments, 1); + o = o || {}; + www = WWW(o.classNames); + return this.each(attach); + function attach() { + var $input, $wrapper, $hint, $menu, defaultHint, defaultMenu, eventBus, input, menu, status, typeahead, MenuConstructor; + _.each(datasets, function(d) { + d.highlight = !!o.highlight; + }); + $input = $(this); + $wrapper = $(www.html.wrapper); + $hint = $elOrNull(o.hint); + $menu = $elOrNull(o.menu); + defaultHint = o.hint !== false && !$hint; + defaultMenu = o.menu !== false && !$menu; + defaultHint && ($hint = buildHintFromInput($input, www)); + defaultMenu && ($menu = $(www.html.menu).css(www.css.menu)); + $hint && $hint.val(""); + $input = prepInput($input, www); + if (defaultHint || defaultMenu) { + $wrapper.css(www.css.wrapper); + $input.css(defaultHint ? www.css.input : www.css.inputWithNoHint); + $input.wrap($wrapper).parent().prepend(defaultHint ? $hint : null).append(defaultMenu ? $menu : null); + } + MenuConstructor = defaultMenu ? DefaultMenu : Menu; + eventBus = new EventBus({ + el: $input + }); + input = new Input({ + hint: $hint, + input: $input, + menu: $menu + }, www); + menu = new MenuConstructor({ + node: $menu, + datasets: datasets + }, www); + status = new Status({ + $input: $input, + menu: menu + }); + typeahead = new Typeahead({ + input: input, + menu: menu, + eventBus: eventBus, + minLength: o.minLength, + autoselect: o.autoselect + }, www); + $input.data(keys.www, www); + $input.data(keys.typeahead, typeahead); + } + }, + isEnabled: function isEnabled() { + var enabled; + ttEach(this.first(), function(t) { + enabled = t.isEnabled(); + }); + return enabled; + }, + enable: function enable() { + ttEach(this, function(t) { + t.enable(); + }); + return this; + }, + disable: function disable() { + ttEach(this, function(t) { + t.disable(); + }); + return this; + }, + isActive: function isActive() { + var active; + ttEach(this.first(), function(t) { + active = t.isActive(); + }); + return active; + }, + activate: function activate() { + ttEach(this, function(t) { + t.activate(); + }); + return this; + }, + deactivate: function deactivate() { + ttEach(this, function(t) { + t.deactivate(); + }); + return this; + }, + isOpen: function isOpen() { + var open; + ttEach(this.first(), function(t) { + open = t.isOpen(); + }); + return open; + }, + open: function open() { + ttEach(this, function(t) { + t.open(); + }); + return this; + }, + close: function close() { + ttEach(this, function(t) { + t.close(); + }); + return this; + }, + select: function select(el) { + var success = false, $el = $(el); + ttEach(this.first(), function(t) { + success = t.select($el); + }); + return success; + }, + autocomplete: function autocomplete(el) { + var success = false, $el = $(el); + ttEach(this.first(), function(t) { + success = t.autocomplete($el); + }); + return success; + }, + moveCursor: function moveCursoe(delta) { + var success = false; + ttEach(this.first(), function(t) { + success = t.moveCursor(delta); + }); + return success; + }, + val: function val(newVal) { + var query; + if (!arguments.length) { + ttEach(this.first(), function(t) { + query = t.getVal(); + }); + return query; + } else { + ttEach(this, function(t) { + t.setVal(_.toStr(newVal)); + }); + return this; + } + }, + destroy: function destroy() { + ttEach(this, function(typeahead, $input) { + revert($input); + typeahead.destroy(); + }); + return this; + } + }; + $.fn.typeahead = function(method) { + if (methods[method]) { + return methods[method].apply(this, [].slice.call(arguments, 1)); + } else { + return methods.initialize.apply(this, arguments); + } + }; + $.fn.typeahead.noConflict = function noConflict() { + $.fn.typeahead = old; + return this; + }; + function ttEach($els, fn) { + $els.each(function() { + var $input = $(this), typeahead; + (typeahead = $input.data(keys.typeahead)) && fn(typeahead, $input); + }); + } + function buildHintFromInput($input, www) { + return $input.clone().addClass(www.classes.hint).removeData().css(www.css.hint).css(getBackgroundStyles($input)).prop({ + readonly: true, + required: false + }).removeAttr("id name placeholder").removeClass("required").attr({ + spellcheck: "false", + tabindex: -1 + }); + } + function prepInput($input, www) { + $input.data(keys.attrs, { + dir: $input.attr("dir"), + autocomplete: $input.attr("autocomplete"), + spellcheck: $input.attr("spellcheck"), + style: $input.attr("style") + }); + $input.addClass(www.classes.input).attr({ + spellcheck: false + }); + try { + !$input.attr("dir") && $input.attr("dir", "auto"); + } catch (e) {} + return $input; + } + function getBackgroundStyles($el) { + return { + backgroundAttachment: $el.css("background-attachment"), + backgroundClip: $el.css("background-clip"), + backgroundColor: $el.css("background-color"), + backgroundImage: $el.css("background-image"), + backgroundOrigin: $el.css("background-origin"), + backgroundPosition: $el.css("background-position"), + backgroundRepeat: $el.css("background-repeat"), + backgroundSize: $el.css("background-size") + }; + } + function revert($input) { + var www, $wrapper; + www = $input.data(keys.www); + $wrapper = $input.parent().filter(www.selectors.wrapper); + _.each($input.data(keys.attrs), function(val, key) { + _.isUndefined(val) ? $input.removeAttr(key) : $input.attr(key, val); + }); + $input.removeData(keys.typeahead).removeData(keys.www).removeData(keys.attr).removeClass(www.classes.input); + if ($wrapper.length) { + $input.detach().insertAfter($wrapper); + $wrapper.remove(); + } + } + function $elOrNull(obj) { + var isValid, $el; + isValid = _.isJQuery(obj) || _.isElement(obj); + $el = isValid ? $(obj).first() : []; + return $el.length ? $el : null; + } + })(); +}); \ No newline at end of file diff --git a/releases/1.3.1/typeahead.bundle.min.js b/releases/1.3.1/typeahead.bundle.min.js new file mode 100644 index 0000000000..6a2d2e71bd --- /dev/null +++ b/releases/1.3.1/typeahead.bundle.min.js @@ -0,0 +1,9 @@ +/*! + * typeahead.js 1.3.1 + * https://github.com/corejavascript/typeahead.js + * Copyright 2013-2020 Twitter, Inc. and other contributors; Licensed MIT + */ + + +!function(a,b){"function"==typeof define&&define.amd?define(["jquery"],function(c){return a.Bloodhound=b(c)}):"object"==typeof module&&module.exports?module.exports=b(require("jquery")):a.Bloodhound=b(a.jQuery)}(this,function(a){var b=function(){"use strict";return{isMsie:function(){return!!/(msie|trident)/i.test(navigator.userAgent)&&navigator.userAgent.match(/(msie |rv:)(\d+(.\d+)?)/i)[2]},isBlankString:function(a){return!a||/^\s*$/.test(a)},escapeRegExChars:function(a){return a.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g,"\\$&")},isString:function(a){return"string"==typeof a},isNumber:function(a){return"number"==typeof a},isArray:a.isArray,isFunction:a.isFunction,isObject:a.isPlainObject,isUndefined:function(a){return void 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