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+// Licensed to Cloudera, Inc. under one
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+// or more contributor license agreements. See the NOTICE file
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+// distributed with this work for additional information
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+// regarding copyright ownership. Cloudera, Inc. licenses this file
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+// to you under the Apache License, Version 2.0 (the
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+// "License"); you may not use this file except in compliance
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+// with the License. You may obtain a copy of the License at
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+//
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+// http://www.apache.org/licenses/LICENSE-2.0
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+//
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+// Unless required by applicable law or agreed to in writing, software
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+// distributed under the License is distributed on an "AS IS" BASIS,
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+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+// See the License for the specific language governing permissions and
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+// limitations under the License.
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+
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+// This is the original Bootstrap 2.3.2 typeahed + custom code taken from https://github.com/bassjobsen/Bootstrap-3-Typeahead/issues/121
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+
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+!function ($) {
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+
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+ "use strict"; // jshint ;_;
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+
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+
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+ /* TYPEAHEAD PUBLIC CLASS DEFINITION
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+ * ================================= */
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+
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+ var Typeahead = function (element, options) {
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+ this.$element = $(element)
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+ this.options = $.extend({}, $.fn.typeahead.defaults, options)
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+ this.matcher = this.options.matcher || this.matcher
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+ this.sorter = this.options.sorter || this.sorter
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+ this.highlighter = this.options.highlighter || this.highlighter
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+ this.updater = this.options.updater || this.updater
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+ this.source = this.options.source
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+ this.$menu = $(this.options.menu)
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+ this.shown = false
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+ this.listen()
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+ }
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+
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+ Typeahead.prototype = {
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+
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+ constructor: Typeahead
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+
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+ , select: function () {
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+ var val = this.$menu.find('.active').attr('data-value')
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+ this.$element
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+ .val(this.updater(val))
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+ .change()
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+ return this.hide()
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+ }
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+
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+ , updater: function (item) {
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+ return item
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+ }
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+
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+ , show: function () {
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+ var pos = $.extend({}, this.$element.position(), {
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+ height: this.$element[0].offsetHeight
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+ })
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+
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+ this.$menu
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+ .insertAfter(this.$element)
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+ .css({
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+ top: pos.top + pos.height
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+ , left: pos.left
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+ })
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+ .show()
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+
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+ this.shown = true
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+ return this
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+ }
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+
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+ , hide: function () {
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+ this.$menu.hide()
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+ this.shown = false
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+ return this
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+ }
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+
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+ , lookup: function (event) {
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+ var items
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+
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+ this.query = this.$element.val()
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+
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+ if (!this.query || this.query.length < this.options.minLength) {
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+ return this.shown ? this.hide() : this
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+ }
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+
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+ items = $.isFunction(this.source) ? this.source(this.query, $.proxy(this.process, this)) : this.source
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+
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+ return items ? this.process(items) : this
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+ }
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+
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+ , process: function (items) {
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+ var that = this
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+
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+ items = $.grep(items, function (item) {
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+ return that.matcher(item)
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+ })
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+
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+ items = this.sorter(items)
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+
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+ if (!items.length) {
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+ return this.shown ? this.hide() : this
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+ }
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+
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+ return this.render(items.slice(0, this.options.items)).show()
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+ }
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+
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+ , matcher: function (item) {
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+ return ~item.toLowerCase().indexOf(this.query.toLowerCase())
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+ }
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+
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+ , sorter: function (items) {
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+ var beginswith = []
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+ , caseSensitive = []
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+ , caseInsensitive = []
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+ , item
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+
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+ while (item = items.shift()) {
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+ if (!item.toLowerCase().indexOf(this.query.toLowerCase())) beginswith.push(item)
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+ else if (~item.indexOf(this.query)) caseSensitive.push(item)
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+ else caseInsensitive.push(item)
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+ }
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+
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+ return beginswith.concat(caseSensitive, caseInsensitive)
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+ }
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+
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+ , highlighter: function (item) {
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+ var query = this.query.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, '\\$&')
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+ return item.replace(new RegExp('(' + query + ')', 'ig'), function ($1, match) {
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+ return '<strong>' + match + '</strong>'
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+ })
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+ }
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+
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+ , render: function (items) {
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+ var that = this
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+
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+ items = $(items).map(function (i, item) {
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+ i = $(that.options.item).attr('data-value', item)
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+ i.find('a').html(that.highlighter(item))
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+ return i[0]
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+ })
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+
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+ items.first().addClass('active')
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+ this.$menu.html(items)
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+ return this
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+ }
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+
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+ , next: function (event) {
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+ var active = this.$menu.find('.active').removeClass('active')
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+ , next = active.next()
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+
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+ if (!next.length) {
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+ next = $(this.$menu.find('li')[0])
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+ }
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+
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+ next.addClass('active')
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+ }
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+
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+ , prev: function (event) {
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+ var active = this.$menu.find('.active').removeClass('active')
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+ , prev = active.prev()
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+
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+ if (!prev.length) {
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+ prev = this.$menu.find('li').last()
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+ }
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+
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+ prev.addClass('active')
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+ }
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+
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+ , listen: function () {
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+ this.$element
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+ .on('focus', $.proxy(this.focus, this))
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+ .on('blur', $.proxy(this.blur, this))
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+ .on('keypress', $.proxy(this.keypress, this))
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+ .on('keyup', $.proxy(this.keyup, this))
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+
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+ if (this.eventSupported('keydown')) {
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+ this.$element.on('keydown', $.proxy(this.keydown, this))
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+ }
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+
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+ var isTouchDevice = 'ontouchstart' in document.documentElement
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+
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+ if (isTouchDevice) {
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+ this.$menu
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+ .on('touchstart', 'li', $.proxy(this.touchstart, this))
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+ .on('touchend', 'li', $.proxy(this.click, this))
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+ .on('mousedown', 'li', $.proxy(this.click, this))
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+ .on('mouseup', 'li', $.proxy(this.hide, this))
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+
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+ }
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+ else {
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+ this.$menu
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+ .on('click', $.proxy(this.click, this))
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+ .on('mouseenter', 'li', $.proxy(this.mouseenter, this))
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+ .on('mouseleave', 'li', $.proxy(this.mouseleave, this))
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+ }
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+
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+ }
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+
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+ , eventSupported: function (eventName) {
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+ var isSupported = eventName in this.$element
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+ if (!isSupported) {
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+ this.$element.setAttribute(eventName, 'return;')
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+ isSupported = typeof this.$element[eventName] === 'function'
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+ }
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+ return isSupported
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+ }
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+
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+ , move: function (e) {
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+ if (!this.shown) return
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+
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+ switch (e.keyCode) {
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+ case 9: // tab
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+ case 13: // enter
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+ case 27: // escape
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+ e.preventDefault()
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+ break
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+
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+ case 38: // up arrow
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+ e.preventDefault()
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+ this.prev()
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+ break
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+
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+ case 40: // down arrow
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+ e.preventDefault()
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+ this.next()
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+ break
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+ }
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+
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+ e.stopPropagation()
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+ }
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+
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+ , keydown: function (e) {
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+ this.suppressKeyPressRepeat = ~$.inArray(e.keyCode, [40, 38, 9, 13, 27])
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+ this.move(e)
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+ }
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+
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+ , keypress: function (e) {
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+ if (this.suppressKeyPressRepeat) return
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+ this.move(e)
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+ }
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+
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+ , keyup: function (e) {
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+ switch (e.keyCode) {
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+ case 40: // down arrow
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+ case 38: // up arrow
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+ case 16: // shift
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+ case 17: // ctrl
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+ case 18: // alt
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+ break
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+
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+ case 9: // tab
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+ case 13: // enter
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+ if (!this.shown) return
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+ this.select()
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+ break
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+
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+ case 27: // escape
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+ if (!this.shown) return
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+ this.hide()
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+ break
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+
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+ default:
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+ this.lookup()
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+ }
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+
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+ e.stopPropagation()
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+ e.preventDefault()
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+ }
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+
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+ , focus: function (e) {
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+ this.focused = true
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+ }
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+
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+ , blur: function (e) {
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+ this.focused = false
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+ if (!this.mousedover && this.shown) this.hide()
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+ }
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+
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+ , click: function (e) {
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+ e.stopPropagation()
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+ e.preventDefault()
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+ this.select()
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+ this.$element.focus()
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+ }
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+
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+ , mouseenter: function (e) {
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+ this.mousedover = true
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+ this.$menu.find('.active').removeClass('active')
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+ $(e.currentTarget).addClass('active')
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+ }
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+
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+ , mouseleave: function (e) {
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+ this.mousedover = false
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+ if (!this.focused && this.shown) this.hide()
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+ }
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+
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+ , touchstart: function (e) {
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+ e.preventDefault()
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+ this.$menu.find('.active').removeClass('active')
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+ $(e.currentTarget).addClass('active')
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+ }
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+
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+ , touchend: function (e) {
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+ e.preventDefault()
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+ this.select()
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+ this.$element.focus()
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+ }
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+
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+ }
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+
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+
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|
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+ /* TYPEAHEAD PLUGIN DEFINITION
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+ * =========================== */
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+
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+ var old = $.fn.typeahead
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+
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+ $.fn.typeahead = function (option) {
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+ return this.each(function () {
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+ var $this = $(this)
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+ , data = $this.data('typeahead')
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+ , options = typeof option == 'object' && option
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+ if (!data) $this.data('typeahead', (data = new Typeahead(this, options)))
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+ if (typeof option == 'string') data[option]()
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+ })
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+ }
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+
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+ $.fn.typeahead.defaults = {
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+ source: []
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+ , items: 8
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+ , menu: '<ul class="typeahead dropdown-menu"></ul>'
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+ , item: '<li><a href="#"></a></li>'
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+ , minLength: 1
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+ }
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+
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+ $.fn.typeahead.Constructor = Typeahead
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+
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+
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+ /* TYPEAHEAD NO CONFLICT
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+ * =================== */
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+
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+ $.fn.typeahead.noConflict = function () {
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+ $.fn.typeahead = old
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+ return this
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+ }
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+
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+
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+ /* TYPEAHEAD DATA-API
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+ * ================== */
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+
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+ $(document).on('focus.typeahead.data-api', '[data-provide="typeahead"]', function (e) {
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+ var $this = $(this)
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+ if ($this.data('typeahead')) return
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+ $this.typeahead($this.data())
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+ })
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+
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+}(window.jQuery);
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