carousel.js 5.9KB

    /* ======================================================================== * Bootstrap: carousel.js v3.1.1 * http://getbootstrap.com/javascript/#carousel * ======================================================================== * Copyright 2011-2014 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) * ======================================================================== */ +function ($) { 'use strict'; // CAROUSEL CLASS DEFINITION // ========================= var Carousel = function (element, options) { this.$element = $(element) this.$indicators = this.$element.find('.carousel-indicators') this.options = options this.paused = this.sliding = this.interval = this.$active = this.$items = null this.options.pause == 'hover' && this.$element .on('mouseenter', $.proxy(this.pause, this)) .on('mouseleave', $.proxy(this.cycle, this)) } Carousel.DEFAULTS = { interval: 5000, pause: 'hover', wrap: true } Carousel.prototype.cycle = function (e) { e || (this.paused = false) this.interval && clearInterval(this.interval) this.options.interval && !this.paused && (this.interval = setInterval($.proxy(this.next, this), this.options.interval)) return this } Carousel.prototype.getActiveIndex = function () { this.$active = this.$element.find('.item.active') this.$items = this.$active.parent().children() return this.$items.index(this.$active) } Carousel.prototype.to = function (pos) { var that = this var activeIndex = this.getActiveIndex() if (pos > (this.$items.length - 1) || pos < 0) return if (this.sliding) return this.$element.one('slid.bs.carousel', function () { that.to(pos) }) if (activeIndex == pos) return this.pause().cycle() return this.slide(pos > activeIndex ? 'next' : 'prev', $(this.$items[pos])) } Carousel.prototype.pause = function (e) { e || (this.paused = true) if (this.$element.find('.next, .prev').length && $.support.transition) { this.$element.trigger($.support.transition.end) this.cycle(true) } this.interval = clearInterval(this.interval) return this } Carousel.prototype.next = function () { if (this.sliding) return return this.slide('next') } Carousel.prototype.prev = function () { if (this.sliding) return return this.slide('prev') } Carousel.prototype.slide = function (type, next) { var $active = this.$element.find('.item.active') var $next = next || $active[type]() var isCycling = this.interval var direction = type == 'next' ? 'left' : 'right' var fallback = type == 'next' ? 'first' : 'last' var that = this if (!$next.length) { if (!this.options.wrap) return $next = this.$element.find('.item')[fallback]() } if ($next.hasClass('active')) return this.sliding = false var e = $.Event('slide.bs.carousel', { relatedTarget: $next[0], direction: direction }) this.$element.trigger(e) if (e.isDefaultPrevented()) return this.sliding = true isCycling && this.pause() if (this.$indicators.length) { this.$indicators.find('.active').removeClass('active') this.$element.one('slid.bs.carousel', function () { var $nextIndicator = $(that.$indicators.children()[that.getActiveIndex()]) $nextIndicator && $nextIndicator.addClass('active') }) } if ($.support.transition && this.$element.hasClass('slide')) { $next.addClass(type) $next[0].offsetWidth // force reflow $active.addClass(direction) $next.addClass(direction) $active .one($.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.bs.carousel') }, 0) }) .emulateTransitionEnd($active.css('transition-duration').slice(0, -1) * 1000) } else { $active.removeClass('active') $next.addClass('active') this.sliding = false this.$element.trigger('slid.bs.carousel') } isCycling && this.cycle() return this } // CAROUSEL PLUGIN DEFINITION // ========================== var old = $.fn.carousel $.fn.carousel = function (option) { return this.each(function () { var $this = $(this) var data = $this.data('bs.carousel') var options = $.extend({}, Carousel.DEFAULTS, $this.data(), typeof option == 'object' && option) var action = typeof option == 'string' ? option : options.slide if (!data) $this.data('bs.carousel', (data = new Carousel(this, options))) if (typeof option == 'number') data.to(option) else if (action) data[action]() else if (options.interval) data.pause().cycle() }) } $.fn.carousel.Constructor = Carousel // CAROUSEL NO CONFLICT // ==================== $.fn.carousel.noConflict = function () { $.fn.carousel = old return this } // CAROUSEL DATA-API // ================= $(document).on('click.bs.carousel.data-api', '[data-slide], [data-slide-to]', function (e) { var $this = $(this), href var $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7 var options = $.extend({}, $target.data(), $this.data()) var slideIndex = $this.attr('data-slide-to') if (slideIndex) options.interval = false $target.carousel(options) if (slideIndex = $this.attr('data-slide-to')) { $target.data('bs.carousel').to(slideIndex) } e.preventDefault() }) $(window).on('load', function () { $('[data-ride="carousel"]').each(function () { var $carousel = $(this) $carousel.carousel($carousel.data()) }) }) }(jQuery);