/* =============================================================
|
* bootstrap-typeahead.js v2.3.2
|
* http://twitter.github.com/bootstrap/javascript.html#typeahead
|
* =============================================================
|
* Copyright 2012 Twitter, Inc.
|
*
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
* you may not use this file except in compliance with the License.
|
* You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations under the License.
|
* ============================================================ */
|
|
|
!function($){
|
|
"use strict"; // jshint ;_;
|
|
|
/* TYPEAHEAD PUBLIC CLASS DEFINITION
|
* ================================= */
|
|
var Typeahead = function (element, options) {
|
this.$element = $(element)
|
this.options = $.extend({}, $.fn.typeahead.defaults, options)
|
this.matcher = this.options.matcher || this.matcher
|
this.sorter = this.options.sorter || this.sorter
|
this.highlighter = this.options.highlighter || this.highlighter
|
this.updater = this.options.updater || this.updater
|
this.source = this.options.source
|
this.$menu = $(this.options.menu)
|
this.shown = false
|
this.listen()
|
}
|
|
Typeahead.prototype = {
|
|
constructor: Typeahead
|
|
, select: function () {
|
var val = this.$menu.find('.active').attr('data-value')
|
this.$element
|
.val(this.updater(val))
|
.change()
|
return this.hide()
|
}
|
|
, updater: function (item) {
|
return item
|
}
|
|
, show: function () {
|
var pos = $.extend({}, this.$element.position(), {
|
height: this.$element[0].offsetHeight
|
})
|
|
this.$menu
|
.insertAfter(this.$element)
|
.css({
|
top: pos.top + pos.height
|
, left: pos.left
|
})
|
.show()
|
|
this.shown = true
|
return this
|
}
|
|
, hide: function () {
|
this.$menu.hide()
|
this.shown = false
|
return this
|
}
|
|
, lookup: function (event) {
|
var items
|
|
this.query = this.$element.val()
|
|
if (!this.query || this.query.length < this.options.minLength) {
|
return this.shown ? this.hide() : this
|
}
|
|
items = $.isFunction(this.source) ? this.source(this.query, $.proxy(this.process, this)) : this.source
|
|
return items ? this.process(items) : this
|
}
|
|
, process: function (items) {
|
var that = this
|
|
items = $.grep(items, function (item) {
|
return that.matcher(item)
|
})
|
|
items = this.sorter(items)
|
|
if (!items.length) {
|
return this.shown ? this.hide() : this
|
}
|
|
return this.render(items.slice(0, this.options.items)).show()
|
}
|
|
, matcher: function (item) {
|
return ~item.toLowerCase().indexOf(this.query.toLowerCase())
|
}
|
|
, sorter: function (items) {
|
var beginswith = []
|
, caseSensitive = []
|
, caseInsensitive = []
|
, item
|
|
while (item = items.shift()) {
|
if (!item.toLowerCase().indexOf(this.query.toLowerCase())) beginswith.push(item)
|
else if (~item.indexOf(this.query)) caseSensitive.push(item)
|
else caseInsensitive.push(item)
|
}
|
|
return beginswith.concat(caseSensitive, caseInsensitive)
|
}
|
|
, highlighter: function (item) {
|
var query = this.query.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, '\\$&')
|
return item.replace(new RegExp('(' + query + ')', 'ig'), function ($1, match) {
|
return '<strong>' + match + '</strong>'
|
})
|
}
|
|
, render: function (items) {
|
var that = this
|
|
items = $(items).map(function (i, item) {
|
i = $(that.options.item).attr('data-value', item)
|
i.find('a').html(that.highlighter(item))
|
return i[0]
|
})
|
|
items.first().addClass('active')
|
this.$menu.html(items)
|
return this
|
}
|
|
, next: function (event) {
|
var active = this.$menu.find('.active').removeClass('active')
|
, next = active.next()
|
|
if (!next.length) {
|
next = $(this.$menu.find('li')[0])
|
}
|
|
next.addClass('active')
|
}
|
|
, prev: function (event) {
|
var active = this.$menu.find('.active').removeClass('active')
|
, prev = active.prev()
|
|
if (!prev.length) {
|
prev = this.$menu.find('li').last()
|
}
|
|
prev.addClass('active')
|
}
|
|
, listen: function () {
|
this.$element
|
.on('focus', $.proxy(this.focus, this))
|
.on('blur', $.proxy(this.blur, this))
|
.on('keypress', $.proxy(this.keypress, this))
|
.on('keyup', $.proxy(this.keyup, this))
|
|
if (this.eventSupported('keydown')) {
|
this.$element.on('keydown', $.proxy(this.keydown, this))
|
}
|
|
this.$menu
|
.on('click', $.proxy(this.click, this))
|
.on('mouseenter', 'li', $.proxy(this.mouseenter, this))
|
.on('mouseleave', 'li', $.proxy(this.mouseleave, this))
|
}
|
|
, eventSupported: function(eventName) {
|
var isSupported = eventName in this.$element
|
if (!isSupported) {
|
this.$element.setAttribute(eventName, 'return;')
|
isSupported = typeof this.$element[eventName] === 'function'
|
}
|
return isSupported
|
}
|
|
, move: function (e) {
|
if (!this.shown) return
|
|
switch(e.keyCode) {
|
case 9: // tab
|
case 13: // enter
|
case 27: // escape
|
e.preventDefault()
|
break
|
|
case 38: // up arrow
|
e.preventDefault()
|
this.prev()
|
break
|
|
case 40: // down arrow
|
e.preventDefault()
|
this.next()
|
break
|
}
|
|
e.stopPropagation()
|
}
|
|
, keydown: function (e) {
|
this.suppressKeyPressRepeat = ~$.inArray(e.keyCode, [40,38,9,13,27])
|
this.move(e)
|
}
|
|
, keypress: function (e) {
|
if (this.suppressKeyPressRepeat) return
|
this.move(e)
|
}
|
|
, keyup: function (e) {
|
switch(e.keyCode) {
|
case 40: // down arrow
|
case 38: // up arrow
|
case 16: // shift
|
case 17: // ctrl
|
case 18: // alt
|
break
|
|
case 9: // tab
|
case 13: // enter
|
if (!this.shown) return
|
this.select()
|
break
|
|
case 27: // escape
|
if (!this.shown) return
|
this.hide()
|
break
|
|
default:
|
this.lookup()
|
}
|
|
e.stopPropagation()
|
e.preventDefault()
|
}
|
|
, focus: function (e) {
|
this.focused = true
|
}
|
|
, blur: function (e) {
|
this.focused = false
|
if (!this.mousedover && this.shown) this.hide()
|
}
|
|
, click: function (e) {
|
e.stopPropagation()
|
e.preventDefault()
|
this.select()
|
this.$element.focus()
|
}
|
|
, mouseenter: function (e) {
|
this.mousedover = true
|
this.$menu.find('.active').removeClass('active')
|
$(e.currentTarget).addClass('active')
|
}
|
|
, mouseleave: function (e) {
|
this.mousedover = false
|
if (!this.focused && this.shown) this.hide()
|
}
|
|
}
|
|
|
/* TYPEAHEAD PLUGIN DEFINITION
|
* =========================== */
|
|
var old = $.fn.typeahead
|
|
$.fn.typeahead = function (option) {
|
return this.each(function () {
|
var $this = $(this)
|
, data = $this.data('typeahead')
|
, options = typeof option == 'object' && option
|
if (!data) $this.data('typeahead', (data = new Typeahead(this, options)))
|
if (typeof option == 'string') data[option]()
|
})
|
}
|
|
$.fn.typeahead.defaults = {
|
source: []
|
, items: 8
|
, menu: '<ul class="typeahead dropdown-menu"></ul>'
|
, item: '<li><a href="#"></a></li>'
|
, minLength: 1
|
}
|
|
$.fn.typeahead.Constructor = Typeahead
|
|
|
/* TYPEAHEAD NO CONFLICT
|
* =================== */
|
|
$.fn.typeahead.noConflict = function () {
|
$.fn.typeahead = old
|
return this
|
}
|
|
|
/* TYPEAHEAD DATA-API
|
* ================== */
|
|
$(document).on('focus.typeahead.data-api', '[data-provide="typeahead"]', function (e) {
|
var $this = $(this)
|
if ($this.data('typeahead')) return
|
$this.typeahead($this.data())
|
})
|
|
}(window.jQuery);
|
