|
/* ============================================================= |
|
* bootstrap-typeahead.js v2.0.0 |
|
* 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" |
|
|
|
var Typeahead = function ( element, options ) { |
|
this.$element = $(element) |
|
this.options = $.extend({}, $.fn.typeahead.defaults, options) |
|
this.matcher = this.options.matcher || this.matcher |
|
this.sorter = this.options.sorter || this.sorter |
|
this.highlighter = this.options.highlighter || this.highlighter |
|
this.$menu = $(this.options.menu).appendTo('body') |
|
this.source = this.options.source |
|
this.onselect = this.options.onselect |
|
this.strings = true |
|
this.shown = false |
|
this.listen() |
|
} |
|
|
|
Typeahead.prototype = { |
|
|
|
constructor: Typeahead |
|
|
|
, select: function () { |
|
var val = JSON.parse(this.$menu.find('.active').attr('data-value')) |
|
, text |
|
|
|
if (!this.strings) text = val[this.options.property] |
|
else text = val |
|
|
|
this.$element.val(text) |
|
|
|
if (typeof this.onselect == "function") |
|
this.onselect(val) |
|
|
|
return this.hide() |
|
} |
|
|
|
, 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 |
|
, value |
|
|
|
this.query = this.$element.val() |
|
|
|
if (typeof this.source == "function") { |
|
value = this.source(this, this.query) |
|
if (value) this.process(value) |
|
} else { |
|
this.process(this.source) |
|
} |
|
} |
|
|
|
, process: function (results) { |
|
var that = this |
|
, items |
|
, q |
|
|
|
if (results.length && typeof results[0] != "string") |
|
this.strings = false |
|
|
|
this.query = this.$element.val() |
|
|
|
if (!this.query) { |
|
return this.shown ? this.hide() : this |
|
} |
|
|
|
items = $.grep(results, function (item) { |
|
if (!that.strings) |
|
item = item[that.options.property] |
|
if (that.matcher(item)) return 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 |
|
, sortby |
|
|
|
while (item = items.shift()) { |
|
if (this.strings) sortby = item |
|
else sortby = item[this.options.property] |
|
|
|
if (!sortby.toLowerCase().indexOf(this.query.toLowerCase())) beginswith.push(item) |
|
else if (~sortby.indexOf(this.query)) caseSensitive.push(item) |
|
else caseInsensitive.push(item) |
|
} |
|
|
|
return beginswith.concat(caseSensitive, caseInsensitive) |
|
} |
|
|
|
, highlighter: function (item) { |
|
return item.replace(new RegExp('(' + this.query + ')', 'ig'), function ($1, match) { |
|
return '<strong>' + match + '</strong>' |
|
}) |
|
} |
|
|
|
, render: function (items) { |
|
var that = this |
|
|
|
items = $(items).map(function (i, item) { |
|
i = $(that.options.item).attr('data-value', JSON.stringify(item)) |
|
if (!that.strings) |
|
item = item[that.options.property] |
|
i.find('a').html(that.highlighter(item)) |
|
return i[0] |
|
}) |
|
|
|
items.first().addClass('active') |
|
this.$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', $.proxy(this.mouseenter, this)) |
|
} |
|
|
|
, keyup: function (e) { |
|
e.stopPropagation() |
|
e.preventDefault() |
|
|
|
switch(e.keyCode) { |
|
case 40: // down arrow |
|
case 38: // up arrow |
|
break |
|
|
|
case 9: // tab |
|
case 13: // enter |
|
if (!this.shown) return |
|
this.select() |
|
break |
|
|
|
case 27: // escape |
|
this.hide() |
|
break |
|
|
|
default: |
|
this.lookup() |
|
} |
|
|
|
} |
|
|
|
, keypress: function (e) { |
|
e.stopPropagation() |
|
if (!this.shown) return |
|
|
|
switch(e.keyCode) { |
|
case 9: // tab |
|
case 13: // enter |
|
case 27: // escape |
|
e.preventDefault() |
|
break |
|
|
|
case 38: // up arrow |
|
e.preventDefault() |
|
this.prev() |
|
break |
|
|
|
case 40: // down arrow |
|
e.preventDefault() |
|
this.next() |
|
break |
|
} |
|
} |
|
|
|
, blur: function (e) { |
|
var that = this |
|
e.stopPropagation() |
|
e.preventDefault() |
|
setTimeout(function () { that.hide() }, 150) |
|
} |
|
|
|
, click: function (e) { |
|
e.stopPropagation() |
|
e.preventDefault() |
|
this.select() |
|
} |
|
|
|
, mouseenter: function (e) { |
|
this.$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>' |
|
, onselect: null |
|
, property: 'value' |
|
} |
|
|
|
$.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 ); |
Note that this functionality has now been committed to the 2.1.0-wip branch of Bootstrap, will keep this gist around for older versions though!