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/*!
* typeahead.js 0.11.1
* https://github.com/twitter/typeahead.js
* Copyright 2013-2015 Twitter, Inc. and other contributors; Licensed MIT
*/
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
define('bloodhound', ['jquery'], function (a0) {
return root['Bloodhound'] = factory(a0);
});
} else if (typeof exports === 'object') {
module.exports = factory(require('jquery'));
} else {
root['Bloodhound'] = factory(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);
},
noop: function () {},
};
}();
var VERSION = '0.11.1';
var tokenizers = function () {
'use strict';
return {
nonword: nonword,
whitespace: whitespace,
obj: {
nonword: getObjTokenizer(nonword),
whitespace: getObjTokenizer(whitespace),
},
};
function whitespace (str) {
str = _.toStr(str);
return str ? str.split(/\s+/) : [];
}
function nonword (str) {
str = _.toStr(str);
return str ? str.split(/\W+/) : [];
}
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 = {},
maxPendingRequests = 6, sharedCache = new LruCache(10);
function Transport (o) {
o = o || {};
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) {
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 < 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.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) {
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 {
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.transport = new Transport({
cache: o.cache,
limiter: o.limiter,
transport: o.transport,
});
}
_.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,
sufficient: 5,
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)
: $.ajax;
delete o.replace;
delete o.wildcard;
delete o.rateLimitBy;
delete o.rateLimitWait;
return o;
}
function toRemotePrepare (o) {
var prepare, replace, wildcard;
prepare = o.prepare;
replace = o.replace;
wildcard = o.wildcard;
if (prepare) {
return prepare;
}
if (replace) {
prepare = prepareByReplace;
} else if (o.wildcard) {
prepare = prepareByWildcard;
} else {
prepare = idenityPrepare;
}
return prepare;
function prepareByReplace (query, settings) {
settings.url = replace(settings.url, query);
return settings;
}
function prepareByWildcard (query, settings) {
settings.url = settings.url.replace(wildcard,
encodeURIComponent(query));
return settings;
}
function idenityPrepare (query, settings) {
return settings;
}
}
function toLimiter (o) {
var limiter, method, wait;
limiter = o.limiter;
method = o.rateLimitBy;
wait = o.rateLimitWait;
if (!limiter) {
limiter = /^throttle$/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.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;
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);
});
async && 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('typeahead.js', ['jquery'], function (a0) {
return factory(a0);
});
} else if (typeof exports === 'object') {
module.exports = factory(require('jquery'));
} else {
factory(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);
},
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: '<span class="' + c.wrapper + '"></span>',
menu: '<div class="' + c.menu + '"></div>',
};
}
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;
$e = $.Event(namespace + type);
(args = args || []).unshift($e);
this.$el.trigger.apply(this.$el, 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,
};
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);
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 getRegex (patterns, caseSensitive, wordsOnly) {
var escapedPatterns = [], regexStr;
for (var i = 0, len = patterns.length; i < len; i++) {
escapedPatterns.push(_.escapeRegExChars(patterns[i]));
}
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) {
o = o || {};
if (!o.input) {
$.error('input is missing');
}
www.mixin(this);
this.$hint = $(o.hint);
this.$input = $(o.input);
this.query = this.$input.val();
this.queryWhenFocused = this.hasFocus() ? this.query : null;
this.$overflowHelper = buildOverflowHelper(this.$input);
this._checkLanguageDirection();
if (this.$hint.length === 0) {
this.setHint = this.getHint = this.clearHint = this.clearHintIfInvalid = _.noop;
}
}
Input.normalizeQuery = function (str) {
return _.toStr(str).replace(/^\s*/g, '').replace(/\s{2,}/g, ' ');
};
_.mixin(Input.prototype, EventEmitter, {
_onBlur: function onBlur () {
this.resetInputValue();
this.trigger('blurred');
},
_onFocus: function onFocus () {
this.queryWhenFocused = this.query;
this.trigger('focused');
},
_onKeydown: function onKeydown ($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);
}
},
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 = $('<div>');
},
});
return Input;
function buildOverflowHelper ($input) {
return $('<pre aria-hidden="true"></pre>').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 = {
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)) {
$.error('invalid dataset name: ' + o.name);
}
www.mixin(this);
this.highlight = !!o.highlight;
this.name = o.name || nameGenerator();
this.limit = o.limit || 5;
this.displayFn = getDisplayFn(o.display || o.displayKey);
this.templates = getTemplates(o.templates, this.displayFn);
this.source = o.source.__ttAdapter
? o.source.__ttAdapter()
: o.source;
this.async = _.isUndefined(o.async)
? this.source.length > 2
: !!o.async;
this._resetLastSuggestion();
this.$el = $(o.node).
addClass(this.classes.dataset).
addClass(this.classes.dataset + '-' + this.name);
}
Dataset.extractData = function extractData (el) {
var $el = $(el);
if ($el.data(keys.obj)) {
return {
val: $el.data(keys.val) || '',
obj: $el.data(keys.obj) || null,
};
}
return null;
};
_.mixin(Dataset.prototype, EventEmitter, {
_overwrite: function overwrite (query, suggestions) {
suggestions = suggestions || [];
if (suggestions.length) {
this._renderSuggestions(query, suggestions);
} else if (this.async && this.templates.pending) {
this._renderPending(query);
} else if (!this.async && this.templates.notFound) {
this._renderNotFound(query);
} else {
this._empty();
}
this.trigger('rendered', this.name, suggestions, false);
},
_append: function append (query, suggestions) {
suggestions = suggestions || [];
if (suggestions.length && this.$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', this.name, suggestions, true);
},
_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 = $(that.templates.suggestion(context)).
data(keys.obj, suggestion).
data(keys.val, that.displayFn(suggestion)).
addClass(that.classes.suggestion + ' ' +
that.classes.selectable);
fragment.appendChild($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);
};
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);
}
}
function async (suggestions) {
suggestions = suggestions || [];
if (!canceled && rendered < that.limit) {
that.cancel = $.noop;
rendered += suggestions.length;
that._append(query,
suggestions.slice(0, that.limit - rendered));
that.async && that.trigger('asyncReceived', query);
}
}
},
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 = $('<div>');
},
});
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 || suggestionTemplate,
};
function suggestionTemplate (context) {
return $('<div>').text(displayFn(context));
}
}
function isValidName (str) {
return /^[_a-zA-Z0-9-]+$/.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 : $('<div>').
appendTo(that.$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, isDatasetEmpty);
function isDatasetEmpty (dataset) {
return dataset.isEmpty();
}
},
_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);
_.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.addClass(this.classes.open);
},
close: function close () {
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 = $('<div>');
_.each(this.datasets, destroyDataset);
function destroyDataset (dataset) {
dataset.destroy();
}
},
});
return Menu;
}();
var DefaultMenu = function () {
'use strict';
var s = Menu.prototype;
function DefaultMenu () {
Menu.apply(this, [].slice.call(arguments, 0));
}
_.mixin(DefaultMenu.prototype, Menu.prototype, {
open: function open () {
!this._allDatasetsEmpty() && this._show();
return s.open.apply(this, [].slice.call(arguments, 0));
},
close: function close () {
this._hide();
return s.close.apply(this, [].slice.call(arguments, 0));
},
_onRendered: function onRendered () {
if (this._allDatasetsEmpty()) {
this._hide();
} else {
this.isOpen() && this._show();
}
return s._onRendered.apply(this, [].slice.call(arguments, 0));
},
_onCleared: function onCleared () {
if (this._allDatasetsEmpty()) {
this._hide();
} else {
this.isOpen() && this._show();
}
return s._onCleared.apply(this, [].slice.call(arguments, 0));
},
setLanguageDirection: function setLanguageDirection (dir) {
this.$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.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 || $('<div>');
$menu = this.menu.$node || $('<div>');
$input.on('blur.tt', function ($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, dataset, suggestions, async) {
this._updateHint();
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()) {
this.select($selectable) && $e.preventDefault();
}
},
_onTabKeyed: function onTabKeyed (type, $e) {
var $selectable;
if ($selectable = this.menu.getActiveSelectable()) {
this.select($selectable) && $e.preventDefault();
} else if ($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.getTopSelectable());
}
},
_onRightKeyed: function onRightKeyed () {
if (this.dir === 'ltr' && this.input.isCursorAtEnd()) {
this.autocomplete(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 + ')(.+$)', 'i');
match = frontMatchRegEx.exec(data.val);
match && this.input.setHint(val + match[1]);
} else {
this.input.clearHint();
}
},
isEnabled: function isEnabled () {
return this.enabled;
},
enable: function enable () {
this.enabled = true;
},
disable: function disable () {
this.enabled = false;
},
isActive: function isActive () {
return this.active;
},
activate: function activate () {
if (this.isActive()) {
return true;
} else if (!this.isEnabled() ||
this.eventBus.before('active')) {
return false;
} else {
this.active = true;
this.eventBus.trigger('active');
return true;
}
},
deactivate: function deactivate () {
if (!this.isActive()) {
return true;
} else if (this.eventBus.before('idle')) {
return false;
} else {
this.active = false;
this.close();
this.eventBus.trigger('idle');
return true;
}
},
isOpen: function isOpen () {
return this.menu.isOpen();
},
open: function open () {
if (!this.isOpen() && !this.eventBus.before('open')) {
this.menu.open();
this._updateHint();
this.eventBus.trigger('open');
}
return this.isOpen();
},
close: function close () {
if (this.isOpen() && !this.eventBus.before('close')) {
this.menu.close();
this.input.clearHint();
this.input.resetInputValue();
this.eventBus.trigger('close');
}
return !this.isOpen();
},
setVal: function setVal (val) {
this.input.setQuery(_.toStr(val));
},
getVal: function getVal () {
return this.input.getQuery();
},
select: function select ($selectable) {
var data = this.menu.getSelectableData($selectable);
if (data && !this.eventBus.before('select', data.obj)) {
this.input.setQuery(data.val, true);
this.eventBus.trigger('select', data.obj);
this.close();
return true;
}
return false;
},
autocomplete: function autocomplete ($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)) {
this.input.setQuery(data.val);
this.eventBus.trigger('autocomplete', data.obj);
return true;
}
return false;
},
moveCursor: function moveCursor (delta) {
var query, $candidate, data, payload, cancelMove;
query = this.input.getQuery();
$candidate = this.menu.selectableRelativeToCursor(delta);
data = this.menu.getSelectableData($candidate);
payload = data ? data.obj : null;
cancelMove = this._minLengthMet() && this.menu.update(query);
if (!cancelMove &&
!this.eventBus.before('cursorchange', payload)) {
this.menu.setCursor($candidate);
if (data) {
this.input.setInputValue(data.val);
} else {
this.input.resetInputValue();
this._updateHint();
}
this.eventBus.trigger('cursorchange', payload);
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, 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,
}, www);
menu = new MenuConstructor({
node: $menu,
datasets: datasets,
}, www);
typeahead = new Typeahead({
input: input,
menu: menu,
eventBus: eventBus,
minLength: o.minLength,
}, 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(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).
removeAttr('id name placeholder required').
attr({
autocomplete: 'off',
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'),
});
$input.addClass(www.classes.input).attr({
autocomplete: 'off',
spellcheck: false,
});
try {
!$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;
}
})();
});