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Posted to dev@tapestry.apache.org by hl...@apache.org on 2014/12/30 01:50:23 UTC

[2/4] tapestry-5 git commit: Update to typeahead 0.10.5

http://git-wip-us.apache.org/repos/asf/tapestry-5/blob/4ede8bec/tapestry-core/src/main/resources/META-INF/assets/tapestry5/typeahead.js
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diff --git a/tapestry-core/src/main/resources/META-INF/assets/tapestry5/typeahead.js b/tapestry-core/src/main/resources/META-INF/assets/tapestry5/typeahead.js
new file mode 100644
index 0000000..8164a3c
--- /dev/null
+++ b/tapestry-core/src/main/resources/META-INF/assets/tapestry5/typeahead.js
@@ -0,0 +1,1782 @@
+/*!
+ * typeahead.js 0.10.5
+ * https://github.com/twitter/typeahead.js
+ * Copyright 2013-2014 Twitter, Inc. and other contributors; Licensed MIT
+ */
+
+(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";
+            },
+            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,
+            getUniqueId: 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;
+                };
+            },
+            noop: function() {}
+        };
+    }();
+    var VERSION = "0.10.5";
+    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() {
+                var args = [].slice.call(arguments, 0);
+                return function tokenize(o) {
+                    var tokens = [];
+                    _.each(args, 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];
+                }
+                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 ls, methods;
+        try {
+            ls = window.localStorage;
+            ls.setItem("~~~", "!");
+            ls.removeItem("~~~");
+        } catch (err) {
+            ls = null;
+        }
+        function PersistentStorage(namespace) {
+            this.prefix = [ "__", namespace, "__" ].join("");
+            this.ttlKey = "__ttl__";
+            this.keyMatcher = new RegExp("^" + _.escapeRegExChars(this.prefix));
+        }
+        if (ls && window.JSON) {
+            methods = {
+                _prefix: function(key) {
+                    return this.prefix + key;
+                },
+                _ttlKey: function(key) {
+                    return this._prefix(key) + this.ttlKey;
+                },
+                get: function(key) {
+                    if (this.isExpired(key)) {
+                        this.remove(key);
+                    }
+                    return decode(ls.getItem(this._prefix(key)));
+                },
+                set: function(key, val, ttl) {
+                    if (_.isNumber(ttl)) {
+                        ls.setItem(this._ttlKey(key), encode(now() + ttl));
+                    } else {
+                        ls.removeItem(this._ttlKey(key));
+                    }
+                    return ls.setItem(this._prefix(key), encode(val));
+                },
+                remove: function(key) {
+                    ls.removeItem(this._ttlKey(key));
+                    ls.removeItem(this._prefix(key));
+                    return this;
+                },
+                clear: function() {
+                    var i, key, keys = [], len = ls.length;
+                    for (i = 0; i < len; i++) {
+                        if ((key = ls.key(i)).match(this.keyMatcher)) {
+                            keys.push(key.replace(this.keyMatcher, ""));
+                        }
+                    }
+                    for (i = keys.length; i--; ) {
+                        this.remove(keys[i]);
+                    }
+                    return this;
+                },
+                isExpired: function(key) {
+                    var ttl = decode(ls.getItem(this._ttlKey(key)));
+                    return _.isNumber(ttl) && now() > ttl ? true : false;
+                }
+            };
+        } else {
+            methods = {
+                get: _.noop,
+                set: _.noop,
+                remove: _.noop,
+                clear: _.noop,
+                isExpired: _.noop
+            };
+        }
+        _.mixin(PersistentStorage.prototype, methods);
+        return PersistentStorage;
+        function now() {
+            return new Date().getTime();
+        }
+        function encode(val) {
+            return JSON.stringify(_.isUndefined(val) ? null : val);
+        }
+        function decode(val) {
+            return JSON.parse(val);
+        }
+    }();
+    var Transport = function() {
+        "use strict";
+        var pendingRequestsCount = 0, pendingRequests = {}, maxPendingRequests = 6, sharedCache = new LruCache(10);
+        function Transport(o) {
+            o = o || {};
+            this.cancelled = false;
+            this.lastUrl = null;
+            this._send = o.transport ? callbackToDeferred(o.transport) : $.ajax;
+            this._get = o.rateLimiter ? o.rateLimiter(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, {
+            _get: function(url, o, cb) {
+                var that = this, jqXhr;
+                if (this.cancelled || url !== this.lastUrl) {
+                    return;
+                }
+                if (jqXhr = pendingRequests[url]) {
+                    jqXhr.done(done).fail(fail);
+                } else if (pendingRequestsCount < maxPendingRequests) {
+                    pendingRequestsCount++;
+                    pendingRequests[url] = this._send(url, o).done(done).fail(fail).always(always);
+                } else {
+                    this.onDeckRequestArgs = [].slice.call(arguments, 0);
+                }
+                function done(resp) {
+                    cb && cb(null, resp);
+                    that._cache.set(url, resp);
+                }
+                function fail() {
+                    cb && cb(true);
+                }
+                function always() {
+                    pendingRequestsCount--;
+                    delete pendingRequests[url];
+                    if (that.onDeckRequestArgs) {
+                        that._get.apply(that, that.onDeckRequestArgs);
+                        that.onDeckRequestArgs = null;
+                    }
+                }
+            },
+            get: function(url, o, cb) {
+                var resp;
+                if (_.isFunction(o)) {
+                    cb = o;
+                    o = {};
+                }
+                this.cancelled = false;
+                this.lastUrl = url;
+                if (resp = this._cache.get(url)) {
+                    _.defer(function() {
+                        cb && cb(null, resp);
+                    });
+                } else {
+                    this._get(url, o, cb);
+                }
+                return !!resp;
+            },
+            cancel: function() {
+                this.cancelled = true;
+            }
+        });
+        return Transport;
+        function callbackToDeferred(fn) {
+            return function customSendWrapper(url, o) {
+                var deferred = $.Deferred();
+                fn(url, o, onSuccess, onError);
+                return deferred;
+                function onSuccess(resp) {
+                    _.defer(function() {
+                        deferred.resolve(resp);
+                    });
+                }
+                function onError(err) {
+                    _.defer(function() {
+                        deferred.reject(err);
+                    });
+                }
+            };
+        }
+    }();
+    var SearchIndex = function() {
+        "use strict";
+        function SearchIndex(o) {
+            o = o || {};
+            if (!o.datumTokenizer || !o.queryTokenizer) {
+                $.error("datumTokenizer and queryTokenizer are both required");
+            }
+            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;
+                    id = that.datums.push(datum) - 1;
+                    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(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];
+                }) : [];
+            },
+            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() {
+            return {
+                ids: [],
+                children: {}
+            };
+        }
+        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(compare);
+            arrayB = arrayB.sort(compare);
+            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;
+            function compare(a, b) {
+                return a - b;
+            }
+        }
+    }();
+    var oParser = function() {
+        "use strict";
+        return {
+            local: getLocal,
+            prefetch: getPrefetch,
+            remote: getRemote
+        };
+        function getLocal(o) {
+            return o.local || null;
+        }
+        function getPrefetch(o) {
+            var prefetch, defaults;
+            defaults = {
+                url: null,
+                thumbprint: "",
+                ttl: 24 * 60 * 60 * 1e3,
+                filter: null,
+                ajax: {}
+            };
+            if (prefetch = o.prefetch || null) {
+                prefetch = _.isString(prefetch) ? {
+                    url: prefetch
+                } : prefetch;
+                prefetch = _.mixin(defaults, prefetch);
+                prefetch.thumbprint = VERSION + prefetch.thumbprint;
+                prefetch.ajax.type = prefetch.ajax.type || "GET";
+                prefetch.ajax.dataType = prefetch.ajax.dataType || "json";
+                !prefetch.url && $.error("prefetch requires url to be set");
+            }
+            return prefetch;
+        }
+        function getRemote(o) {
+            var remote, defaults;
+            defaults = {
+                url: null,
+                cache: true,
+                wildcard: "%QUERY",
+                replace: null,
+                rateLimitBy: "debounce",
+                rateLimitWait: 300,
+                send: null,
+                filter: null,
+                ajax: {}
+            };
+            if (remote = o.remote || null) {
+                remote = _.isString(remote) ? {
+                    url: remote
+                } : remote;
+                remote = _.mixin(defaults, remote);
+                remote.rateLimiter = /^throttle$/i.test(remote.rateLimitBy) ? byThrottle(remote.rateLimitWait) : byDebounce(remote.rateLimitWait);
+                remote.ajax.type = remote.ajax.type || "GET";
+                remote.ajax.dataType = remote.ajax.dataType || "json";
+                delete remote.rateLimitBy;
+                delete remote.rateLimitWait;
+                !remote.url && $.error("remote requires url to be set");
+            }
+            return remote;
+            function byDebounce(wait) {
+                return function(fn) {
+                    return _.debounce(fn, wait);
+                };
+            }
+            function byThrottle(wait) {
+                return function(fn) {
+                    return _.throttle(fn, wait);
+                };
+            }
+        }
+    }();
+    (function(root) {
+        "use strict";
+        var old, keys;
+        old = root.Bloodhound;
+        keys = {
+            data: "data",
+            protocol: "protocol",
+            thumbprint: "thumbprint"
+        };
+        root.Bloodhound = Bloodhound;
+        function Bloodhound(o) {
+            if (!o || !o.local && !o.prefetch && !o.remote) {
+                $.error("one of local, prefetch, or remote is required");
+            }
+            this.limit = o.limit || 5;
+            this.sorter = getSorter(o.sorter);
+            this.dupDetector = o.dupDetector || ignoreDuplicates;
+            this.local = oParser.local(o);
+            this.prefetch = oParser.prefetch(o);
+            this.remote = oParser.remote(o);
+            this.cacheKey = this.prefetch ? this.prefetch.cacheKey || this.prefetch.url : null;
+            this.index = new SearchIndex({
+                datumTokenizer: o.datumTokenizer,
+                queryTokenizer: o.queryTokenizer
+            });
+            this.storage = this.cacheKey ? new PersistentStorage(this.cacheKey) : null;
+        }
+        Bloodhound.noConflict = function noConflict() {
+            root.Bloodhound = old;
+            return Bloodhound;
+        };
+        Bloodhound.tokenizers = tokenizers;
+        _.mixin(Bloodhound.prototype, {
+            _loadPrefetch: function loadPrefetch(o) {
+                var that = this, serialized, deferred;
+                if (serialized = this._readFromStorage(o.thumbprint)) {
+                    this.index.bootstrap(serialized);
+                    deferred = $.Deferred().resolve();
+                } else {
+                    deferred = $.ajax(o.url, o.ajax).done(handlePrefetchResponse);
+                }
+                return deferred;
+                function handlePrefetchResponse(resp) {
+                    that.clear();
+                    that.add(o.filter ? o.filter(resp) : resp);
+                    that._saveToStorage(that.index.serialize(), o.thumbprint, o.ttl);
+                }
+            },
+            _getFromRemote: function getFromRemote(query, cb) {
+                var that = this, url, uriEncodedQuery;
+                if (!this.transport) {
+                    return;
+                }
+                query = query || "";
+                uriEncodedQuery = encodeURIComponent(query);
+                url = this.remote.replace ? this.remote.replace(this.remote.url, query) : this.remote.url.replace(this.remote.wildcard, uriEncodedQuery);
+                return this.transport.get(url, this.remote.ajax, handleRemoteResponse);
+                function handleRemoteResponse(err, resp) {
+                    err ? cb([]) : cb(that.remote.filter ? that.remote.filter(resp) : resp);
+                }
+            },
+            _cancelLastRemoteRequest: function cancelLastRemoteRequest() {
+                this.transport && this.transport.cancel();
+            },
+            _saveToStorage: function saveToStorage(data, thumbprint, ttl) {
+                if (this.storage) {
+                    this.storage.set(keys.data, data, ttl);
+                    this.storage.set(keys.protocol, location.protocol, ttl);
+                    this.storage.set(keys.thumbprint, thumbprint, ttl);
+                }
+            },
+            _readFromStorage: function readFromStorage(thumbprint) {
+                var stored = {}, isExpired;
+                if (this.storage) {
+                    stored.data = this.storage.get(keys.data);
+                    stored.protocol = this.storage.get(keys.protocol);
+                    stored.thumbprint = this.storage.get(keys.thumbprint);
+                }
+                isExpired = stored.thumbprint !== thumbprint || stored.protocol !== location.protocol;
+                return stored.data && !isExpired ? stored.data : null;
+            },
+            _initialize: function initialize() {
+                var that = this, local = this.local, deferred;
+                deferred = this.prefetch ? this._loadPrefetch(this.prefetch) : $.Deferred().resolve();
+                local && deferred.done(addLocalToIndex);
+                this.transport = this.remote ? new Transport(this.remote) : null;
+                return this.initPromise = deferred.promise();
+                function addLocalToIndex() {
+                    that.add(_.isFunction(local) ? local() : local);
+                }
+            },
+            initialize: function initialize(force) {
+                return !this.initPromise || force ? this._initialize() : this.initPromise;
+            },
+            add: function add(data) {
+                this.index.add(data);
+            },
+            get: function get(query, cb) {
+                var that = this, matches = [], cacheHit = false;
+                matches = this.index.get(query);
+                matches = this.sorter(matches).slice(0, this.limit);
+                matches.length < this.limit ? cacheHit = this._getFromRemote(query, returnRemoteMatches) : this._cancelLastRemoteRequest();
+                if (!cacheHit) {
+                    (matches.length > 0 || !this.transport) && cb && cb(matches);
+                }
+                function returnRemoteMatches(remoteMatches) {
+                    var matchesWithBackfill = matches.slice(0);
+                    _.each(remoteMatches, function(remoteMatch) {
+                        var isDuplicate;
+                        isDuplicate = _.some(matchesWithBackfill, function(match) {
+                            return that.dupDetector(remoteMatch, match);
+                        });
+                        !isDuplicate && matchesWithBackfill.push(remoteMatch);
+                        return matchesWithBackfill.length < that.limit;
+                    });
+                    cb && cb(that.sorter(matchesWithBackfill));
+                }
+            },
+            clear: function clear() {
+                this.index.reset();
+            },
+            clearPrefetchCache: function clearPrefetchCache() {
+                this.storage && this.storage.clear();
+            },
+            clearRemoteCache: function clearRemoteCache() {
+                this.transport && Transport.resetCache();
+            },
+            ttAdapter: function ttAdapter() {
+                return _.bind(this.get, this);
+            }
+        });
+        return Bloodhound;
+        function getSorter(sortFn) {
+            return _.isFunction(sortFn) ? sort : noSort;
+            function sort(array) {
+                return array.sort(sortFn);
+            }
+            function noSort(array) {
+                return array;
+            }
+        }
+        function ignoreDuplicates() {
+            return false;
+        }
+    })(this);
+    var html = function() {
+        return {
+            wrapper: '<span class="twitter-typeahead"></span>',
+            dropdown: '<span class="tt-dropdown-menu"></span>',
+            dataset: '<div class="tt-dataset-%CLASS%"></div>',
+            suggestions: '<span class="tt-suggestions"></span>',
+            suggestion: '<div class="tt-suggestion"></div>'
+        };
+    }();
+    var css = function() {
+        "use strict";
+        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"
+            },
+            dropdown: {
+                position: "absolute",
+                top: "100%",
+                left: "0",
+                zIndex: "100",
+                display: "none"
+            },
+            suggestions: {
+                display: "block"
+            },
+            suggestion: {
+                whiteSpace: "nowrap",
+                cursor: "pointer"
+            },
+            suggestionChild: {
+                whiteSpace: "normal"
+            },
+            ltr: {
+                left: "0",
+                right: "auto"
+            },
+            rtl: {
+                left: "auto",
+                right: " 0"
+            }
+        };
+        if (_.isMsie()) {
+            _.mixin(css.input, {
+                backgroundImage: "url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)"
+            });
+        }
+        if (_.isMsie() && _.isMsie() <= 7) {
+            _.mixin(css.input, {
+                marginTop: "-1px"
+            });
+        }
+        return css;
+    }();
+    var EventBus = function() {
+        "use strict";
+        var namespace = "typeahead:";
+        function EventBus(o) {
+            if (!o || !o.el) {
+                $.error("EventBus initialized without el");
+            }
+            this.$el = $(o.el);
+        }
+        _.mixin(EventBus.prototype, {
+            trigger: function(type) {
+                var args = [].slice.call(arguments, 1);
+                this.$el.trigger(namespace + type, args);
+            }
+        });
+        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) {
+            var that = this, onBlur, onFocus, onKeydown, onInput;
+            o = o || {};
+            if (!o.input) {
+                $.error("input is missing");
+            }
+            onBlur = _.bind(this._onBlur, this);
+            onFocus = _.bind(this._onFocus, this);
+            onKeydown = _.bind(this._onKeydown, this);
+            onInput = _.bind(this._onInput, this);
+            this.$hint = $(o.hint);
+            this.$input = $(o.input).on("blur.tt", onBlur).on("focus.tt", onFocus).on("keydown.tt", onKeydown);
+            if (this.$hint.length === 0) {
+                this.setHint = this.getHint = this.clearHint = this.clearHintIfInvalid = _.noop;
+            }
+            if (!_.isMsie()) {
+                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, $e));
+                });
+            }
+            this.query = this.$input.val();
+            this.$overflowHelper = buildOverflowHelper(this.$input);
+        }
+        Input.normalizeQuery = function(str) {
+            return (str || "").replace(/^\s*/g, "").replace(/\s{2,}/g, " ");
+        };
+        _.mixin(Input.prototype, EventEmitter, {
+            _onBlur: function onBlur() {
+                this.resetInputValue();
+                this.trigger("blurred");
+            },
+            _onFocus: function onFocus() {
+                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._checkInputValue();
+            },
+            _managePreventDefault: function managePreventDefault(keyName, $e) {
+                var preventDefault, hintValue, inputValue;
+                switch (keyName) {
+                  case "tab":
+                    hintValue = this.getHint();
+                    inputValue = this.getInputValue();
+                    preventDefault = hintValue && hintValue !== inputValue && !withModifier($e);
+                    break;
+
+                  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;
+            },
+            _checkInputValue: function checkInputValue() {
+                var inputValue, areEquivalent, hasDifferentWhitespace;
+                inputValue = this.getInputValue();
+                areEquivalent = areQueriesEquivalent(inputValue, this.query);
+                hasDifferentWhitespace = areEquivalent ? this.query.length !== inputValue.length : false;
+                this.query = inputValue;
+                if (!areEquivalent) {
+                    this.trigger("queryChanged", this.query);
+                } else if (hasDifferentWhitespace) {
+                    this.trigger("whitespaceChanged", this.query);
+                }
+            },
+            focus: function focus() {
+                this.$input.focus();
+            },
+            blur: function blur() {
+                this.$input.blur();
+            },
+            getQuery: function getQuery() {
+                return this.query;
+            },
+            setQuery: function setQuery(query) {
+                this.query = query;
+            },
+            getInputValue: function getInputValue() {
+                return this.$input.val();
+            },
+            setInputValue: function setInputValue(value, silent) {
+                this.$input.val(value);
+                silent ? this.clearHint() : this._checkInputValue();
+            },
+            resetInputValue: function resetInputValue() {
+                this.setInputValue(this.query, true);
+            },
+            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();
+            },
+            getLanguageDirection: function getLanguageDirection() {
+                return (this.$input.css("direction") || "ltr").toLowerCase();
+            },
+            hasOverflow: function hasOverflow() {
+                var constraint = this.$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.$hint = this.$input = this.$overflowHelper = null;
+            }
+        });
+        return Input;
+        function buildOverflowHelper($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 datasetKey = "ttDataset", valueKey = "ttValue", datumKey = "ttDatum";
+        function Dataset(o) {
+            o = o || {};
+            o.templates = o.templates || {};
+            if (!o.source) {
+                $.error("missing source");
+            }
+            if (o.name && !isValidName(o.name)) {
+                $.error("invalid dataset name: " + o.name);
+            }
+            this.query = null;
+            this.highlight = !!o.highlight;
+            this.name = o.name || _.getUniqueId();
+            this.source = o.source;
+            this.displayFn = getDisplayFn(o.display || o.displayKey);
+            this.templates = getTemplates(o.templates, this.displayFn);
+            this.$el = $(html.dataset.replace("%CLASS%", this.name));
+        }
+        Dataset.extractDatasetName = function extractDatasetName(el) {
+            return $(el).data(datasetKey);
+        };
+        Dataset.extractValue = function extractDatum(el) {
+            return $(el).data(valueKey);
+        };
+        Dataset.extractDatum = function extractDatum(el) {
+            return $(el).data(datumKey);
+        };
+        _.mixin(Dataset.prototype, EventEmitter, {
+            _render: function render(query, suggestions) {
+                if (!this.$el) {
+                    return;
+                }
+                var that = this, hasSuggestions;
+                this.$el.empty();
+                hasSuggestions = suggestions && suggestions.length;
+                if (!hasSuggestions && this.templates.empty) {
+                    this.$el.html(getEmptyHtml()).prepend(that.templates.header ? getHeaderHtml() : null).append(that.templates.footer ? getFooterHtml() : null);
+                } else if (hasSuggestions) {
+                    this.$el.html(getSuggestionsHtml()).prepend(that.templates.header ? getHeaderHtml() : null).append(that.templates.footer ? getFooterHtml() : null);
+                }
+                this.trigger("rendered");
+                function getEmptyHtml() {
+                    return that.templates.empty({
+                        query: query,
+                        isEmpty: true
+                    });
+                }
+                function getSuggestionsHtml() {
+                    var $suggestions, nodes;
+                    $suggestions = $(html.suggestions).css(css.suggestions);
+                    nodes = _.map(suggestions, getSuggestionNode);
+                    $suggestions.append.apply($suggestions, nodes);
+                    that.highlight && highlight({
+                        className: "tt-highlight",
+                        node: $suggestions[0],
+                        pattern: query
+                    });
+                    return $suggestions;
+                    function getSuggestionNode(suggestion) {
+                        var $el;
+                        $el = $(html.suggestion).append(that.templates.suggestion(suggestion)).data(datasetKey, that.name).data(valueKey, that.displayFn(suggestion)).data(datumKey, suggestion);
+                        $el.children().each(function() {
+                            $(this).css(css.suggestionChild);
+                        });
+                        return $el;
+                    }
+                }
+                function getHeaderHtml() {
+                    return that.templates.header({
+                        query: query,
+                        isEmpty: !hasSuggestions
+                    });
+                }
+                function getFooterHtml() {
+                    return that.templates.footer({
+                        query: query,
+                        isEmpty: !hasSuggestions
+                    });
+                }
+            },
+            getRoot: function getRoot() {
+                return this.$el;
+            },
+            update: function update(query) {
+                var that = this;
+                this.query = query;
+                this.canceled = false;
+                this.source(query, render);
+                function render(suggestions) {
+                    if (!that.canceled && query === that.query) {
+                        that._render(query, suggestions);
+                    }
+                }
+            },
+            cancel: function cancel() {
+                this.canceled = true;
+            },
+            clear: function clear() {
+                this.cancel();
+                this.$el.empty();
+                this.trigger("rendered");
+            },
+            isEmpty: function isEmpty() {
+                return this.$el.is(":empty");
+            },
+            destroy: function destroy() {
+                this.$el = null;
+            }
+        });
+        return Dataset;
+        function getDisplayFn(display) {
+            display = display || "value";
+            return _.isFunction(display) ? display : displayFn;
+            function displayFn(obj) {
+                return obj[display];
+            }
+        }
+        function getTemplates(templates, displayFn) {
+            return {
+                empty: templates.empty && _.templatify(templates.empty),
+                header: templates.header && _.templatify(templates.header),
+                footer: templates.footer && _.templatify(templates.footer),
+                suggestion: templates.suggestion || suggestionTemplate
+            };
+            function suggestionTemplate(context) {
+                return "<p>" + displayFn(context) + "</p>";
+            }
+        }
+        function isValidName(str) {
+            return /^[_a-zA-Z0-9-]+$/.test(str);
+        }
+    }();
+    var Dropdown = function() {
+        "use strict";
+        function Dropdown(o) {
+            var that = this, onSuggestionClick, onSuggestionMouseEnter, onSuggestionMouseLeave;
+            o = o || {};
+            if (!o.menu) {
+                $.error("menu is required");
+            }
+            this.isOpen = false;
+            this.isEmpty = true;
+            this.datasets = _.map(o.datasets, initializeDataset);
+            onSuggestionClick = _.bind(this._onSuggestionClick, this);
+            onSuggestionMouseEnter = _.bind(this._onSuggestionMouseEnter, this);
+            onSuggestionMouseLeave = _.bind(this._onSuggestionMouseLeave, this);
+            this.$menu = $(o.menu).on("click.tt", ".tt-suggestion", onSuggestionClick).on("mouseenter.tt", ".tt-suggestion", onSuggestionMouseEnter).on("mouseleave.tt", ".tt-suggestion", onSuggestionMouseLeave);
+            _.each(this.datasets, function(dataset) {
+                that.$menu.append(dataset.getRoot());
+                dataset.onSync("rendered", that._onRendered, that);
+            });
+        }
+        _.mixin(Dropdown.prototype, EventEmitter, {
+            _onSuggestionClick: function onSuggestionClick($e) {
+                this.trigger("suggestionClicked", $($e.currentTarget));
+            },
+            _onSuggestionMouseEnter: function onSuggestionMouseEnter($e) {
+                this._removeCursor();
+                this._setCursor($($e.currentTarget), true);
+            },
+            _onSuggestionMouseLeave: function onSuggestionMouseLeave() {
+                this._removeCursor();
+            },
+            _onRendered: function onRendered() {
+                this.isEmpty = _.every(this.datasets, isDatasetEmpty);
+                this.isEmpty ? this._hide() : this.isOpen && this._show();
+                this.trigger("datasetRendered");
+                function isDatasetEmpty(dataset) {
+                    return dataset.isEmpty();
+                }
+            },
+            _hide: function() {
+                this.$menu.hide();
+            },
+            _show: function() {
+                this.$menu.css("display", "block");
+            },
+            _getSuggestions: function getSuggestions() {
+                return this.$menu.find(".tt-suggestion");
+            },
+            _getCursor: function getCursor() {
+                return this.$menu.find(".tt-cursor").first();
+            },
+            _setCursor: function setCursor($el, silent) {
+                $el.first().addClass("tt-cursor");
+                !silent && this.trigger("cursorMoved");
+            },
+            _removeCursor: function removeCursor() {
+                this._getCursor().removeClass("tt-cursor");
+            },
+            _moveCursor: function moveCursor(increment) {
+                var $suggestions, $oldCursor, newCursorIndex, $newCursor;
+                if (!this.isOpen) {
+                    return;
+                }
+                $oldCursor = this._getCursor();
+                $suggestions = this._getSuggestions();
+                this._removeCursor();
+                newCursorIndex = $suggestions.index($oldCursor) + increment;
+                newCursorIndex = (newCursorIndex + 1) % ($suggestions.length + 1) - 1;
+                if (newCursorIndex === -1) {
+                    this.trigger("cursorRemoved");
+                    return;
+                } else if (newCursorIndex < -1) {
+                    newCursorIndex = $suggestions.length - 1;
+                }
+                this._setCursor($newCursor = $suggestions.eq(newCursorIndex));
+                this._ensureVisible($newCursor);
+            },
+            _ensureVisible: function ensureVisible($el) {
+                var elTop, elBottom, menuScrollTop, menuHeight;
+                elTop = $el.position().top;
+                elBottom = elTop + $el.outerHeight(true);
+                menuScrollTop = this.$menu.scrollTop();
+                menuHeight = this.$menu.height() + parseInt(this.$menu.css("paddingTop"), 10) + parseInt(this.$menu.css("paddingBottom"), 10);
+                if (elTop < 0) {
+                    this.$menu.scrollTop(menuScrollTop + elTop);
+                } else if (menuHeight < elBottom) {
+                    this.$menu.scrollTop(menuScrollTop + (elBottom - menuHeight));
+                }
+            },
+            close: function close() {
+                if (this.isOpen) {
+                    this.isOpen = false;
+                    this._removeCursor();
+                    this._hide();
+                    this.trigger("closed");
+                }
+            },
+            open: function open() {
+                if (!this.isOpen) {
+                    this.isOpen = true;
+                    !this.isEmpty && this._show();
+                    this.trigger("opened");
+                }
+            },
+            setLanguageDirection: function setLanguageDirection(dir) {
+                this.$menu.css(dir === "ltr" ? css.ltr : css.rtl);
+            },
+            moveCursorUp: function moveCursorUp() {
+                this._moveCursor(-1);
+            },
+            moveCursorDown: function moveCursorDown() {
+                this._moveCursor(+1);
+            },
+            getDatumForSuggestion: function getDatumForSuggestion($el) {
+                var datum = null;
+                if ($el.length) {
+                    datum = {
+                        raw: Dataset.extractDatum($el),
+                        value: Dataset.extractValue($el),
+                        datasetName: Dataset.extractDatasetName($el)
+                    };
+                }
+                return datum;
+            },
+            getDatumForCursor: function getDatumForCursor() {
+                return this.getDatumForSuggestion(this._getCursor().first());
+            },
+            getDatumForTopSuggestion: function getDatumForTopSuggestion() {
+                return this.getDatumForSuggestion(this._getSuggestions().first());
+            },
+            update: function update(query) {
+                _.each(this.datasets, updateDataset);
+                function updateDataset(dataset) {
+                    dataset.update(query);
+                }
+            },
+            empty: function empty() {
+                _.each(this.datasets, clearDataset);
+                this.isEmpty = true;
+                function clearDataset(dataset) {
+                    dataset.clear();
+                }
+            },
+            isVisible: function isVisible() {
+                return this.isOpen && !this.isEmpty;
+            },
+            destroy: function destroy() {
+                this.$menu.off(".tt");
+                this.$menu = null;
+                _.each(this.datasets, destroyDataset);
+                function destroyDataset(dataset) {
+                    dataset.destroy();
+                }
+            }
+        });
+        return Dropdown;
+        function initializeDataset(oDataset) {
+            return new Dataset(oDataset);
+        }
+    }();
+    var Typeahead = function() {
+        "use strict";
+        var attrsKey = "ttAttrs";
+        function Typeahead(o) {
+            var $menu, $input, $hint;
+            o = o || {};
+            if (!o.input) {
+                $.error("missing input");
+            }
+            this.isActivated = false;
+            this.autoselect = !!o.autoselect;
+            this.minLength = _.isNumber(o.minLength) ? o.minLength : 1;
+            this.$node = buildDom(o.input, o.withHint);
+            $menu = this.$node.find(".tt-dropdown-menu");
+            $input = this.$node.find(".tt-input");
+            $hint = this.$node.find(".tt-hint");
+            $input.on("blur.tt", function($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();
+            });
+            this.eventBus = o.eventBus || new EventBus({
+                el: $input
+            });
+            this.dropdown = new Dropdown({
+                menu: $menu,
+                datasets: o.datasets
+            }).onSync("suggestionClicked", this._onSuggestionClicked, this).onSync("cursorMoved", this._onCursorMoved, this).onSync("cursorRemoved", this._onCursorRemoved, this).onSync("opened", this._onOpened, this).onSync("closed", this._onClosed, this).onAsync("datasetRendered", this._onDatasetRendered, this);
+            this.input = new Input({
+                input: $input,
+                hint: $hint
+            }).onSync("focused", this._onFocused, this).onSync("blurred", this._onBlurred, this).onSync("enterKeyed", this._onEnterKeyed, this).onSync("tabKeyed", this._onTabKeyed, this).onSync("escKeyed", this._onEscKeyed, this).onSync("upKeyed", this._onUpKeyed, this).onSync("downKeyed", this._onDownKeyed, this).onSync("leftKeyed", this._onLeftKeyed, this).onSync("rightKeyed", this._onRightKeyed, this).onSync("queryChanged", this._onQueryChanged, this).onSync("whitespaceChanged", this._onWhitespaceChanged, this);
+            this._setLanguageDirection();
+        }
+        _.mixin(Typeahead.prototype, {
+            _onSuggestionClicked: function onSuggestionClicked(type, $el) {
+                var datum;
+                if (datum = this.dropdown.getDatumForSuggestion($el)) {
+                    this._select(datum);
+                }
+            },
+            _onCursorMoved: function onCursorMoved() {
+                var datum = this.dropdown.getDatumForCursor();
+                this.input.setInputValue(datum.value, true);
+                this.eventBus.trigger("cursorchanged", datum.raw, datum.datasetName);
+            },
+            _onCursorRemoved: function onCursorRemoved() {
+                this.input.resetInputValue();
+                this._updateHint();
+            },
+            _onDatasetRendered: function onDatasetRendered() {
+                this._updateHint();
+            },
+            _onOpened: function onOpened() {
+                this._updateHint();
+                this.eventBus.trigger("opened");
+            },
+            _onClosed: function onClosed() {
+                this.input.clearHint();
+                this.eventBus.trigger("closed");
+            },
+            _onFocused: function onFocused() {
+                this.isActivated = true;
+                this.dropdown.open();
+            },
+            _onBlurred: function onBlurred() {
+                this.isActivated = false;
+                this.dropdown.empty();
+                this.dropdown.close();
+            },
+            _onEnterKeyed: function onEnterKeyed(type, $e) {
+                var cursorDatum, topSuggestionDatum;
+                cursorDatum = this.dropdown.getDatumForCursor();
+                topSuggestionDatum = this.dropdown.getDatumForTopSuggestion();
+                if (cursorDatum) {
+                    this._select(cursorDatum);
+                    $e.preventDefault();
+                } else if (this.autoselect && topSuggestionDatum) {
+                    this._select(topSuggestionDatum);
+                    $e.preventDefault();
+                }
+            },
+            _onTabKeyed: function onTabKeyed(type, $e) {
+                var datum;
+                if (datum = this.dropdown.getDatumForCursor()) {
+                    this._select(datum);
+                    $e.preventDefault();
+                } else {
+                    this._autocomplete(true);
+                }
+            },
+            _onEscKeyed: function onEscKeyed() {
+                this.dropdown.close();
+                this.input.resetInputValue();
+            },
+            _onUpKeyed: function onUpKeyed() {
+                var query = this.input.getQuery();
+                this.dropdown.isEmpty && query.length >= this.minLength ? this.dropdown.update(query) : this.dropdown.moveCursorUp();
+                this.dropdown.open();
+            },
+            _onDownKeyed: function onDownKeyed() {
+                var query = this.input.getQuery();
+                this.dropdown.isEmpty && query.length >= this.minLength ? this.dropdown.update(query) : this.dropdown.moveCursorDown();
+                this.dropdown.open();
+            },
+            _onLeftKeyed: function onLeftKeyed() {
+                this.dir === "rtl" && this._autocomplete();
+            },
+            _onRightKeyed: function onRightKeyed() {
+                this.dir === "ltr" && this._autocomplete();
+            },
+            _onQueryChanged: function onQueryChanged(e, query) {
+                this.input.clearHintIfInvalid();
+                query.length >= this.minLength ? this.dropdown.update(query) : this.dropdown.empty();
+                this.dropdown.open();
+                this._setLanguageDirection();
+            },
+            _onWhitespaceChanged: function onWhitespaceChanged() {
+                this._updateHint();
+                this.dropdown.open();
+            },
+            _setLanguageDirection: function setLanguageDirection() {
+                var dir;
+                if (this.dir !== (dir = this.input.getLanguageDirection())) {
+                    this.dir = dir;
+                    this.$node.css("direction", dir);
+                    this.dropdown.setLanguageDirection(dir);
+                }
+            },
+            _updateHint: function updateHint() {
+                var datum, val, query, escapedQuery, frontMatchRegEx, match;
+                datum = this.dropdown.getDatumForTopSuggestion();
+                if (datum && this.dropdown.isVisible() && !this.input.hasOverflow()) {
+                    val = this.input.getInputValue();
+                    query = Input.normalizeQuery(val);
+                    escapedQuery = _.escapeRegExChars(query);
+                    frontMatchRegEx = new RegExp("^(?:" + escapedQuery + ")(.+$)", "i");
+                    match = frontMatchRegEx.exec(datum.value);
+                    match ? this.input.setHint(val + match[1]) : this.input.clearHint();
+                } else {
+                    this.input.clearHint();
+                }
+            },
+            _autocomplete: function autocomplete(laxCursor) {
+                var hint, query, isCursorAtEnd, datum;
+                hint = this.input.getHint();
+                query = this.input.getQuery();
+                isCursorAtEnd = laxCursor || this.input.isCursorAtEnd();
+                if (hint && query !== hint && isCursorAtEnd) {
+                    datum = this.dropdown.getDatumForTopSuggestion();
+                    datum && this.input.setInputValue(datum.value);
+                    this.eventBus.trigger("autocompleted", datum.raw, datum.datasetName);
+                }
+            },
+            _select: function select(datum) {
+                this.input.setQuery(datum.value);
+                this.input.setInputValue(datum.value, true);
+                this._setLanguageDirection();
+                this.eventBus.trigger("selected", datum.raw, datum.datasetName);
+                this.dropdown.close();
+                _.defer(_.bind(this.dropdown.empty, this.dropdown));
+            },
+            open: function open() {
+                this.dropdown.open();
+            },
+            close: function close() {
+                this.dropdown.close();
+            },
+            setVal: function setVal(val) {
+                val = _.toStr(val);
+                if (this.isActivated) {
+                    this.input.setInputValue(val);
+                } else {
+                    this.input.setQuery(val);
+                    this.input.setInputValue(val, true);
+                }
+                this._setLanguageDirection();
+            },
+            getVal: function getVal() {
+                return this.input.getQuery();
+            },
+            destroy: function destroy() {
+                this.input.destroy();
+                this.dropdown.destroy();
+                destroyDomStructure(this.$node);
+                this.$node = null;
+            }
+        });
+        return Typeahead;
+        function buildDom(input, withHint) {
+            var $input, $wrapper, $dropdown, $hint;
+            $input = $(input);
+            $wrapper = $(html.wrapper).css(css.wrapper);
+            $dropdown = $(html.dropdown).css(css.dropdown);
+            $hint = $input.clone().css(css.hint).css(getBackgroundStyles($input));
+            $hint.val("").removeData().addClass("tt-hint").removeAttr("id name placeholder required").prop("readonly", true).attr({
+                autocomplete: "off",
+                spellcheck: "false",
+                tabindex: -1
+            });
+            $input.data(attrsKey, {
+                dir: $input.attr("dir"),
+                autocomplete: $input.attr("autocomplete"),
+                spellcheck: $input.attr("spellcheck"),
+                style: $input.attr("style")
+            });
+            $input.addClass("tt-input").attr({
+                autocomplete: "off",
+                spellcheck: false
+            }).css(withHint ? css.input : css.inputWithNoHint);
+            try {
+                !$input.attr("dir") && $input.attr("dir", "auto");
+            } catch (e) {}
+            return $input.wrap($wrapper).parent().prepend(withHint ? $hint : null).append($dropdown);
+        }
+        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: $el.css("background-size")
+            };
+        }
+        function destroyDomStructure($node) {
+            var $input = $node.find(".tt-input");
+            _.each($input.data(attrsKey), function(val, key) {
+                _.isUndefined(val) ? $input.removeAttr(key) : $input.attr(key, val);
+            });
+            $input.detach().removeData(attrsKey).removeClass("tt-input").insertAfter($node);
+            $node.remove();
+        }
+    }();
+    (function() {
+        "use strict";
+        var old, typeaheadKey, methods;
+        old = $.fn.typeahead;
+        typeaheadKey = "ttTypeahead";
+        methods = {
+            initialize: function initialize(o, datasets) {
+                datasets = _.isArray(datasets) ? datasets : [].slice.call(arguments, 1);
+                o = o || {};
+                return this.each(attach);
+                function attach() {
+                    var $input = $(this), eventBus, typeahead;
+                    _.each(datasets, function(d) {
+                        d.highlight = !!o.highlight;
+                    });
+                    typeahead = new Typeahead({
+                        input: $input,
+                        eventBus: eventBus = new EventBus({
+                            el: $input
+                        }),
+                        withHint: _.isUndefined(o.hint) ? true : !!o.hint,
+                        minLength: o.minLength,
+                        autoselect: o.autoselect,
+                        datasets: datasets
+                    });
+                    $input.data(typeaheadKey, typeahead);
+                }
+            },
+            open: function open() {
+                return this.each(openTypeahead);
+                function openTypeahead() {
+                    var $input = $(this), typeahead;
+                    if (typeahead = $input.data(typeaheadKey)) {
+                        typeahead.open();
+                    }
+                }
+            },
+            close: function close() {
+                return this.each(closeTypeahead);
+                function closeTypeahead() {
+                    var $input = $(this), typeahead;
+                    if (typeahead = $input.data(typeaheadKey)) {
+                        typeahead.close();
+                    }
+                }
+            },
+            val: function val(newVal) {
+                return !arguments.length ? getVal(this.first()) : this.each(setVal);
+                function setVal() {
+                    var $input = $(this), typeahead;
+                    if (typeahead = $input.data(typeaheadKey)) {
+                        typeahead.setVal(newVal);
+                    }
+                }
+                function getVal($input) {
+                    var typeahead, query;
+                    if (typeahead = $input.data(typeaheadKey)) {
+                        query = typeahead.getVal();
+                    }
+                    return query;
+                }
+            },
+            destroy: function destroy() {
+                return this.each(unattach);
+                function unattach() {
+                    var $input = $(this), typeahead;
+                    if (typeahead = $input.data(typeaheadKey)) {
+                        typeahead.destroy();
+                        $input.removeData(typeaheadKey);
+                    }
+                }
+            }
+        };
+        $.fn.typeahead = function(method) {
+            var tts;
+            if (methods[method] && method !== "initialize") {
+                tts = this.filter(function() {
+                    return !!$(this).data(typeaheadKey);
+                });
+                return methods[method].apply(tts, [].slice.call(arguments, 1));
+            } else {
+                return methods.initialize.apply(this, arguments);
+            }
+        };
+        $.fn.typeahead.noConflict = function noConflict() {
+            $.fn.typeahead = old;
+            return this;
+        };
+    })();
+})(window.jQuery);
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/tapestry-5/blob/4ede8bec/tapestry-core/src/test/app1/AutocompleteDemo.tml
----------------------------------------------------------------------
diff --git a/tapestry-core/src/test/app1/AutocompleteDemo.tml b/tapestry-core/src/test/app1/AutocompleteDemo.tml
index b74074f..32a52ab 100644
--- a/tapestry-core/src/test/app1/AutocompleteDemo.tml
+++ b/tapestry-core/src/test/app1/AutocompleteDemo.tml
@@ -5,7 +5,7 @@
 
         <t:errors/>
 
-        <t:textfield t:id="title" t:mixins="autocomplete,formgroup" tokens=",;" maxSuggestions="10" size="60"/>
+        <t:textfield t:id="title" t:mixins="autocomplete,formgroup" maxSuggestions="10" size="60"/>
         <t:textfield t:id="withContext" t:mixins="autocomplete,formgroup" context="context"/>
 
         <div class="form-actions">