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authorJonathan Barronville2014-06-07 19:13:28 -0400
committerJonathan Barronville2014-06-07 19:13:28 -0400
commitb56e5c671ce89f1c8ddc67a4ac8d2f59de04ea85 (patch)
tree80ce4d67ff46505dc1ec77b72daf7bed59abf8b4 /bower_components/bootstrap/js/scrollspy.js
parent67ad58c27c4a2704532246d044e1ecbae2a11022 (diff)
downloadsellevate-b56e5c671ce89f1c8ddc67a4ac8d2f59de04ea85.tar.bz2
Yo.
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diff --git a/bower_components/bootstrap/js/scrollspy.js b/bower_components/bootstrap/js/scrollspy.js
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+/* ========================================================================
+ * Bootstrap: scrollspy.js v3.1.1
+ * http://getbootstrap.com/javascript/#scrollspy
+ * ========================================================================
+ * Copyright 2011-2014 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // SCROLLSPY CLASS DEFINITION
+ // ==========================
+
+ function ScrollSpy(element, options) {
+ var href
+ var process = $.proxy(this.process, this)
+
+ this.$element = $(element).is('body') ? $(window) : $(element)
+ this.$body = $('body')
+ this.$scrollElement = this.$element.on('scroll.bs.scroll-spy.data-api', process)
+ this.options = $.extend({}, ScrollSpy.DEFAULTS, options)
+ this.selector = (this.options.target
+ || ((href = $(element).attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7
+ || '') + ' .nav li > a'
+ this.offsets = $([])
+ this.targets = $([])
+ this.activeTarget = null
+
+ this.refresh()
+ this.process()
+ }
+
+ ScrollSpy.DEFAULTS = {
+ offset: 10
+ }
+
+ ScrollSpy.prototype.refresh = function () {
+ var offsetMethod = this.$element[0] == window ? 'offset' : 'position'
+
+ this.offsets = $([])
+ this.targets = $([])
+
+ var self = this
+ var $targets = this.$body
+ .find(this.selector)
+ .map(function () {
+ var $el = $(this)
+ var href = $el.data('target') || $el.attr('href')
+ var $href = /^#./.test(href) && $(href)
+
+ return ($href
+ && $href.length
+ && $href.is(':visible')
+ && [[ $href[offsetMethod]().top + (!$.isWindow(self.$scrollElement.get(0)) && self.$scrollElement.scrollTop()), href ]]) || null
+ })
+ .sort(function (a, b) { return a[0] - b[0] })
+ .each(function () {
+ self.offsets.push(this[0])
+ self.targets.push(this[1])
+ })
+ }
+
+ ScrollSpy.prototype.process = function () {
+ var scrollTop = this.$scrollElement.scrollTop() + this.options.offset
+ var scrollHeight = this.$scrollElement[0].scrollHeight || this.$body[0].scrollHeight
+ var maxScroll = scrollHeight - this.$scrollElement.height()
+ var offsets = this.offsets
+ var targets = this.targets
+ var activeTarget = this.activeTarget
+ var i
+
+ if (scrollTop >= maxScroll) {
+ return activeTarget != (i = targets.last()[0]) && this.activate(i)
+ }
+
+ if (activeTarget && scrollTop <= offsets[0]) {
+ return activeTarget != (i = targets[0]) && this.activate(i)
+ }
+
+ for (i = offsets.length; i--;) {
+ activeTarget != targets[i]
+ && scrollTop >= offsets[i]
+ && (!offsets[i + 1] || scrollTop <= offsets[i + 1])
+ && this.activate( targets[i] )
+ }
+ }
+
+ ScrollSpy.prototype.activate = function (target) {
+ this.activeTarget = target
+
+ $(this.selector)
+ .parentsUntil(this.options.target, '.active')
+ .removeClass('active')
+
+ var selector = this.selector +
+ '[data-target="' + target + '"],' +
+ this.selector + '[href="' + target + '"]'
+
+ var active = $(selector)
+ .parents('li')
+ .addClass('active')
+
+ if (active.parent('.dropdown-menu').length) {
+ active = active
+ .closest('li.dropdown')
+ .addClass('active')
+ }
+
+ active.trigger('activate.bs.scrollspy')
+ }
+
+
+ // SCROLLSPY PLUGIN DEFINITION
+ // ===========================
+
+ var old = $.fn.scrollspy
+
+ $.fn.scrollspy = function (option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.scrollspy')
+ var options = typeof option == 'object' && option
+
+ if (!data) $this.data('bs.scrollspy', (data = new ScrollSpy(this, options)))
+ if (typeof option == 'string') data[option]()
+ })
+ }
+
+ $.fn.scrollspy.Constructor = ScrollSpy
+
+
+ // SCROLLSPY NO CONFLICT
+ // =====================
+
+ $.fn.scrollspy.noConflict = function () {
+ $.fn.scrollspy = old
+ return this
+ }
+
+
+ // SCROLLSPY DATA-API
+ // ==================
+
+ $(window).on('load', function () {
+ $('[data-spy="scroll"]').each(function () {
+ var $spy = $(this)
+ $spy.scrollspy($spy.data())
+ })
+ })
+
+}(jQuery);