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authorBobby <[email protected]>2022-04-21 16:44:29 -0400
committerBobby <[email protected]>2022-04-21 16:44:29 -0400
commitfba7b92e3bb57dfb0805773545a4b5d58104a983 (patch)
tree5c40d945d6fe2c81e9cdd564bc970c6df3c19484 /static/assets/js/bootstrap-scrollspy.js
parentc0c3d6ef17574a8695121f8a6a63e8a521e54fef (diff)
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-/* =============================================================
- * bootstrap-scrollspy.js v2.3.1
- * 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"; // jshint ;_;
-
-
- /* 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-spy.data-api', process)
- this.selector = (this.options.target
- || ((href = $(element).attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7
- || '') + ' .nav li > a'
- this.$body = $('body')
- this.refresh()
- this.process()
- }
-
- ScrollSpy.prototype = {
-
- constructor: ScrollSpy
-
- , refresh: function () {
- var self = this
- , $targets
-
- this.offsets = $([])
- this.targets = $([])
-
- $targets = this.$body
- .find(this.selector)
- .map(function () {
- var $el = $(this)
- , href = $el.data('target') || $el.attr('href')
- , $href = /^#\w/.test(href) && $(href)
- return ( $href
- && $href.length
- && [[ $href.position().top + (!$.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])
- })
- }
-
- , process: function () {
- var scrollTop = this.$scrollElement.scrollTop() + this.options.offset
- , scrollHeight = this.$scrollElement[0].scrollHeight || this.$body[0].scrollHeight
- , maxScroll = scrollHeight - this.$scrollElement.height()
- , offsets = this.offsets
- , targets = this.targets
- , activeTarget = this.activeTarget
- , i
-
- if (scrollTop >= maxScroll) {
- return activeTarget != (i = targets.last()[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] )
- }
- }
-
- , activate: function (target) {
- var active
- , selector
-
- this.activeTarget = target
-
- $(this.selector)
- .parent('.active')
- .removeClass('active')
-
- selector = this.selector
- + '[data-target="' + target + '"],'
- + this.selector + '[href="' + target + '"]'
-
- active = $(selector)
- .parent('li')
- .addClass('active')
-
- if (active.parent('.dropdown-menu').length) {
- active = active.closest('li.dropdown').addClass('active')
- }
-
- active.trigger('activate')
- }
-
- }
-
-
- /* SCROLLSPY PLUGIN DEFINITION
- * =========================== */
-
- var old = $.fn.scrollspy
-
- $.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 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())
- })
- })
-
-}(window.jQuery); \ No newline at end of file