ashleshajs
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AshleshaJS is a framework to build high performance and maintainable single page web applications. It uses ExpressJS and YUI3 as foundation. It is tightly coupled with Twitter Bootstrap for the CSS framework but you can use any other framework as well.
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JavaScript
/* =============================================================
* bootstrap-typeahead.js v2.0.4
* 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({}, $.fn.typeahead.defaults, options)
this.matcher = this.options.matcher || this.matcher
this.sorter = this.options.sorter || this.sorter
this.highlighter = this.options.highlighter || this.highlighter
this.updater = this.options.updater || this.updater
this.$menu = $(this.options.menu).appendTo('body')
this.source = this.options.source
this.shown = false
this.listen()
}
Typeahead.prototype = {
constructor: Typeahead
, select: function () {
var val = this.$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.offset(), {
height: this.$element[0].offsetHeight
})
this.$menu.css({
top: pos.top + pos.height
, left: pos.left
})
this.$menu.show()
this.shown = true
return this
}
, hide: function () {
this.$menu.hide()
this.shown = false
return this
}
, lookup: function (event) {
var that = this
, items
, q
this.query = this.$element.val()
if (!this.query) {
return this.shown ? this.hide() : this
}
items = $.grep(this.source, 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('blur', $.proxy(this.blur, this))
.on('keypress', $.proxy(this.keypress, this))
.on('keyup', $.proxy(this.keyup, this))
if ($.browser.webkit || $.browser.msie) {
this.$element.on('keydown', $.proxy(this.keypress, this))
}
this.$menu
.on('click', $.proxy(this.click, this))
.on('mouseenter', 'li', $.proxy(this.mouseenter, this))
}
, keyup: function (e) {
switch(e.keyCode) {
case 40: // down arrow
case 38: // up arrow
break
case 9: // tab
case 13: // enter
if (!this.shown) return
this.select()
break
case 27: // escape
if (!this.shown) return
this.hide()
break
default:
this.lookup()
}
e.stopPropagation()
e.preventDefault()
}
, keypress: function (e) {
if (!this.shown) return
switch(e.keyCode) {
case 9: // tab
case 13: // enter
case 27: // escape
e.preventDefault()
break
case 38: // up arrow
if (e.type != 'keydown') break
e.preventDefault()
this.prev()
break
case 40: // down arrow
if (e.type != 'keydown') break
e.preventDefault()
this.next()
break
}
e.stopPropagation()
}
, blur: function (e) {
var that = this
setTimeout(function () { that.hide() }, 150)
}
, click: function (e) {
e.stopPropagation()
e.preventDefault()
this.select()
}
, mouseenter: function (e) {
this.$menu.find('.active').removeClass('active')
$(e.currentTarget).addClass('active')
}
}
/* TYPEAHEAD PLUGIN DEFINITION
* =========================== */
$.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>'
}
$.fn.typeahead.Constructor = Typeahead
/* TYPEAHEAD DATA-API
* ================== */
$(function () {
$('body').on('focus.typeahead.data-api', '[data-provide="typeahead"]', function (e) {
var $this = $(this)
if ($this.data('typeahead')) return
e.preventDefault()
$this.typeahead($this.data())
})
})
}(window.jQuery);