https://www.bnf.fr/themes/custom/bnfsi/bootstrap/js/carousel.js?tlonsf

1/* ========================================================================
2 * Bootstrap: carousel.js v3.3.7
3 * http://getbootstrap.com/javascript/#carousel
4 * ========================================================================
5 * Copyright 2011-2016 Twitter, Inc.
6 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
7 * ======================================================================== */
8
9
10+function ($) {
11  'use strict';
12
13  // CAROUSEL CLASS DEFINITION
14  // =========================
15
16  var Carousel = function (element, options) {
17    this.$element    = $(element)
18    this.$indicators = this.$element.find('.carousel-indicators')
19    this.options     = options
20    this.paused      = null
21    this.sliding     = null
22    this.interval    = null
23    this.$active     = null
24    this.$items      = null
25
26    this.options.keyboard && this.$element.on('keydown.bs.carousel', $.proxy(this.keydown, this))
27
28    this.options.pause == 'hover' && !('ontouchstart' in document.documentElement) && this.$element
29      .on('mouseenter.bs.carousel', $.proxy(this.pause, this))
30      .on('mouseleave.bs.carousel', $.proxy(this.cycle, this))
31  }
32
33  Carousel.VERSION  = '3.3.7'
34
35  Carousel.TRANSITION_DURATION = 600
36
37  Carousel.DEFAULTS = {
38    interval: 5000,
39    pause: 'hover',
40    wrap: true,
41    keyboard: true
42  }
43
44  Carousel.prototype.keydown = function (e) {
45    if (/input|textarea/i.test(e.target.tagName)) return
46    switch (e.which) {
47      case 37: this.prev(); break
48      case 39: this.next(); break
49      default: return
50    }
51
52    e.preventDefault()
53  }
54
55  Carousel.prototype.cycle = function (e) {
56    e || (this.paused = false)
57
58    this.interval && clearInterval(this.interval)
59
60    this.options.interval
61      && !this.paused
62      && (this.interval = setInterval($.proxy(this.next, this), this.options.interval))
63
64    return this
65  }
66
67  Carousel.prototype.getItemIndex = function (item) {
68    this.$items = item.parent().children('.item')
69    return this.$items.index(item || this.$active)
70  }
71
72  Carousel.prototype.getItemForDirection = function (direction, active) {
73    var activeIndex = this.getItemIndex(active)
74    var willWrap = (direction == 'prev' && activeIndex === 0)
75                || (direction == 'next' && activeIndex == (this.$items.length - 1))
76    if (willWrap && !this.options.wrap) return active
77    var delta = direction == 'prev' ? -1 : 1
78    var itemIndex = (activeIndex + delta) % this.$items.length
79    return this.$items.eq(itemIndex)
80  }
81
82  Carousel.prototype.to = function (pos) {
83    var that        = this
84    var activeIndex = this.getItemIndex(this.$active = this.$element.find('.item.active'))
85
86    if (pos > (this.$items.length - 1) || pos < 0) return
87
88    if (this.sliding)       return this.$element.one('slid.bs.carousel', function () { that.to(pos) }) // yes, "slid"
89    if (activeIndex == pos) return this.pause().cycle()
90
91    return this.slide(pos > activeIndex ? 'next' : 'prev', this.$items.eq(pos))
92  }
93
94  Carousel.prototype.pause = function (e) {
95    e || (this.paused = true)
96
97    if (this.$element.find('.next, .prev').length && $.support.transition) {
98      this.$element.trigger($.support.transition.end)
99      this.cycle(true)
100    }
101
102    this.interval = clearInterval(this.interval)
103
104    return this
105  }
106
107  Carousel.prototype.next = function () {
108    if (this.sliding) return
109    return this.slide('next')
110  }
111
112  Carousel.prototype.prev = function () {
113    if (this.sliding) return
114    return this.slide('prev')
115  }
116
117  Carousel.prototype.slide = function (type, next) {
118    var $active   = this.$element.find('.item.active')
119    var $next     = next || this.getItemForDirection(type, $active)
120    var isCycling = this.interval
121    var direction = type == 'next' ? 'left' : 'right'
122    var that      = this
123
124    if ($next.hasClass('active')) return (this.sliding = false)
125
126    var relatedTarget = $next[0]
127    var slideEvent = $.Event('slide.bs.carousel', {
128      relatedTarget: relatedTarget,
129      direction: direction
130    })
131    this.$element.trigger(slideEvent)
132    if (slideEvent.isDefaultPrevented()) return
133
134    this.sliding = true
135
136    isCycling && this.pause()
137
138    if (this.$indicators.length) {
139      this.$indicators.find('.active').removeClass('active')
140      var $nextIndicator = $(this.$indicators.children()[this.getItemIndex($next)])
141      $nextIndicator && $nextIndicator.addClass('active')
142    }
143
144    var slidEvent = $.Event('slid.bs.carousel', { relatedTarget: relatedTarget, direction: direction }) // yes, "slid"