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Bootstrap/js/bootstrap-carousel.js

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/* ==========================================================
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* bootstrap-carousel.js v2.0.1
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* http://twitter.github.com/bootstrap/javascript.html#carousel
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* ==========================================================
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* Copyright 2012 Twitter, Inc.
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*
* 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"
/* CAROUSEL CLASS DEFINITION
* ========================= */
var Carousel = function (element, options) {
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this.$element = $(element)
this.options = $.extend({}, $.fn.carousel.defaults, options)
this.options.slide && this.slide(this.options.slide)
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}
Carousel.prototype = {
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cycle: function () {
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this.interval = setInterval($.proxy(this.next, this), this.options.interval)
return this
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}
, to: function (pos) {
var $active = this.$element.find('.active')
, children = $active.parent().children()
, activePos = children.index($active)
, that = this
if (pos > (children.length - 1) || pos < 0) return
if (this.sliding) {
return this.$element.one('slid', function () {
that.to(pos)
})
}
if (activePos == pos) {
return this.pause().cycle()
}
return this.slide(pos > activePos ? 'next' : 'prev', $(children[pos]))
}
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, pause: function () {
clearInterval(this.interval)
this.interval = null
return this
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}
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, next: function () {
if (this.sliding) return
return this.slide('next')
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}
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, prev: function () {
if (this.sliding) return
return this.slide('prev')
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}
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, slide: function (type, next) {
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var $active = this.$element.find('.active')
, $next = next || $active[type]()
, isCycling = this.interval
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, direction = type == 'next' ? 'left' : 'right'
, fallback = type == 'next' ? 'first' : 'last'
, that = this
this.sliding = true
isCycling && this.pause()
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$next = $next.length ? $next : this.$element.find('.item')[fallback]()
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if ($next.hasClass('active')) return
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if (!$.support.transition && this.$element.hasClass('slide')) {
this.$element.trigger('slide')
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$active.removeClass('active')
$next.addClass('active')
this.sliding = false
this.$element.trigger('slid')
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} else {
$next.addClass(type)
$next[0].offsetWidth // force reflow
$active.addClass(direction)
$next.addClass(direction)
this.$element.trigger('slide')
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this.$element.one($.support.transition.end, function () {
$next.removeClass([type, direction].join(' ')).addClass('active')
$active.removeClass(['active', direction].join(' '))
that.sliding = false
setTimeout(function () { that.$element.trigger('slid') }, 0)
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})
}
isCycling && this.cycle()
return this
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}
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}
/* CAROUSEL PLUGIN DEFINITION
* ========================== */
$.fn.carousel = function ( option ) {
return this.each(function () {
var $this = $(this)
, data = $this.data('carousel')
, options = typeof option == 'object' && option
if (!data) $this.data('carousel', (data = new Carousel(this, options)))
if (typeof option == 'number') data.to(option)
else if (typeof option == 'string' || (option = options.slide)) data[option]()
else data.cycle()
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})
}
$.fn.carousel.defaults = {
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interval: 5000
}
$.fn.carousel.Constructor = Carousel
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/* CAROUSEL DATA-API
* ================= */
$(function () {
$('body').on('click.carousel.data-api', '[data-slide]', function ( e ) {
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var $this = $(this), href
, $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7
, options = !$target.data('modal') && $.extend({}, $target.data(), $this.data())
$target.carousel(options)
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e.preventDefault()
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})
})
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}( window.jQuery );