NebulaPanel - Control Interface

✏️ Editing: typeahead.jquery.js

/*!
 * typeahead.js 0.11.1
 * https://github.com/twitter/typeahead.js
 * Copyright 2013-2015 Twitter, Inc. and other contributors; Licensed MIT
 */

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;
        }
    })();
});

✏️ Editing: typeahead.jquery.js

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