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-/* =============================================================
- * bootstrap-scrollspy.js v2.0.1
- * http://twitter.github.com/bootstrap/javascript.html#scrollspy
- * =============================================================
- * 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"
-
- /* SCROLLSPY CLASS DEFINITION
- * ========================== */
-
- function ScrollSpy( element, options) {
- var process = $.proxy(this.process, this)
- , $element = $(element).is('body') ? $(window) : $(element)
- , href
- this.options = $.extend({}, $.fn.scrollspy.defaults, options)
- this.$scrollElement = $element.on('scroll.scroll.data-api', process)
- this.selector = (this.options.target
- || ((href = $(element).attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7
- || '') + ' .nav li > a'
- this.$body = $('body').on('click.scroll.data-api', this.selector, process)
- this.refresh()
- this.process()
- }
-
- ScrollSpy.prototype = {
-
- constructor: ScrollSpy
-
- , refresh: function () {
- this.targets = this.$body
- .find(this.selector)
- .map(function () {
- var href = $(this).attr('href')
- return /^#\w/.test(href) && $(href).length ? href : null
- })
-
- this.offsets = $.map(this.targets, function (id) {
- return $(id).position().top
- })
- }
-
- , process: function () {
- var scrollTop = this.$scrollElement.scrollTop() + this.options.offset
- , offsets = this.offsets
- , targets = this.targets
- , activeTarget = this.activeTarget
- , i
-
- for (i = offsets.length; i--;) {
- activeTarget != targets[i]
- && scrollTop >= offsets[i]
- && (!offsets[i + 1] || scrollTop <= offsets[i + 1])
- && this.activate( targets[i] )
- }
- }
-
- , activate: function (target) {
- var active
-
- this.activeTarget = target
-
- this.$body
- .find(this.selector).parent('.active')
- .removeClass('active')
-
- active = this.$body
- .find(this.selector + '[href="' + target + '"]')
- .parent('li')
- .addClass('active')
-
- if ( active.parent('.dropdown-menu') ) {
- active.closest('li.dropdown').addClass('active')
- }
- }
-
- }
-
-
- /* SCROLLSPY PLUGIN DEFINITION
- * =========================== */
-
- $.fn.scrollspy = function ( option ) {
- return this.each(function () {
- var $this = $(this)
- , data = $this.data('scrollspy')
- , options = typeof option == 'object' && option
- if (!data) $this.data('scrollspy', (data = new ScrollSpy(this, options)))
- if (typeof option == 'string') data[option]()
- })
- }
-
- $.fn.scrollspy.Constructor = ScrollSpy
-
- $.fn.scrollspy.defaults = {
- offset: 10
- }
-
-
- /* SCROLLSPY DATA-API
- * ================== */
-
- $(function () {
- $('[data-spy="scroll"]').each(function () {
- var $spy = $(this)
- $spy.scrollspy($spy.data())
- })
- })
-
-}( window.jQuery ); \ No newline at end of file