corrade-nucleus-nucleons – Blame information for rev
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1 | office | 1 | /* ======================================================================== |
2 | * Bootstrap: scrollspy.js v3.3.7 |
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3 | * http://getbootstrap.com/javascript/#scrollspy |
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4 | * ======================================================================== |
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5 | * Copyright 2011-2016 Twitter, Inc. |
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6 | * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) |
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7 | * ======================================================================== */ |
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8 | |||
9 | |||
10 | +function ($) { |
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11 | 'use strict'; |
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12 | |||
13 | // SCROLLSPY CLASS DEFINITION |
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14 | // ========================== |
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15 | |||
16 | function ScrollSpy(element, options) { |
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17 | this.$body = $(document.body) |
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18 | this.$scrollElement = $(element).is(document.body) ? $(window) : $(element) |
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19 | this.options = $.extend({}, ScrollSpy.DEFAULTS, options) |
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20 | this.selector = (this.options.target || '') + ' .nav li > a' |
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21 | this.offsets = [] |
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22 | this.targets = [] |
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23 | this.activeTarget = null |
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24 | this.scrollHeight = 0 |
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25 | |||
26 | this.$scrollElement.on('scroll.bs.scrollspy', $.proxy(this.process, this)) |
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27 | this.refresh() |
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28 | this.process() |
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29 | } |
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30 | |||
31 | ScrollSpy.VERSION = '3.3.7' |
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32 | |||
33 | ScrollSpy.DEFAULTS = { |
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34 | offset: 10 |
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35 | } |
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36 | |||
37 | ScrollSpy.prototype.getScrollHeight = function () { |
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38 | return this.$scrollElement[0].scrollHeight || Math.max(this.$body[0].scrollHeight, document.documentElement.scrollHeight) |
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39 | } |
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40 | |||
41 | ScrollSpy.prototype.refresh = function () { |
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42 | var that = this |
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43 | var offsetMethod = 'offset' |
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44 | var offsetBase = 0 |
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45 | |||
46 | this.offsets = [] |
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47 | this.targets = [] |
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48 | this.scrollHeight = this.getScrollHeight() |
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49 | |||
50 | if (!$.isWindow(this.$scrollElement[0])) { |
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51 | offsetMethod = 'position' |
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52 | offsetBase = this.$scrollElement.scrollTop() |
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53 | } |
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54 | |||
55 | this.$body |
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56 | .find(this.selector) |
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57 | .map(function () { |
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58 | var $el = $(this) |
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59 | var href = $el.data('target') || $el.attr('href') |
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60 | var $href = /^#./.test(href) && $(href) |
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61 | |||
62 | return ($href |
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63 | && $href.length |
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64 | && $href.is(':visible') |
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65 | && [[$href[offsetMethod]().top + offsetBase, href]]) || null |
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66 | }) |
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67 | .sort(function (a, b) { return a[0] - b[0] }) |
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68 | .each(function () { |
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69 | that.offsets.push(this[0]) |
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70 | that.targets.push(this[1]) |
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71 | }) |
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72 | } |
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73 | |||
74 | ScrollSpy.prototype.process = function () { |
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75 | var scrollTop = this.$scrollElement.scrollTop() + this.options.offset |
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76 | var scrollHeight = this.getScrollHeight() |
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77 | var maxScroll = this.options.offset + scrollHeight - this.$scrollElement.height() |
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78 | var offsets = this.offsets |
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79 | var targets = this.targets |
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80 | var activeTarget = this.activeTarget |
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81 | var i |
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82 | |||
83 | if (this.scrollHeight != scrollHeight) { |
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84 | this.refresh() |
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85 | } |
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86 | |||
87 | if (scrollTop >= maxScroll) { |
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88 | return activeTarget != (i = targets[targets.length - 1]) && this.activate(i) |
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89 | } |
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90 | |||
91 | if (activeTarget && scrollTop < offsets[0]) { |
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92 | this.activeTarget = null |
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93 | return this.clear() |
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94 | } |
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95 | |||
96 | for (i = offsets.length; i--;) { |
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97 | activeTarget != targets[i] |
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98 | && scrollTop >= offsets[i] |
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99 | && (offsets[i + 1] === undefined || scrollTop < offsets[i + 1]) |
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100 | && this.activate(targets[i]) |
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101 | } |
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102 | } |
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103 | |||
104 | ScrollSpy.prototype.activate = function (target) { |
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105 | this.activeTarget = target |
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106 | |||
107 | this.clear() |
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108 | |||
109 | var selector = this.selector + |
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110 | '[data-target="' + target + '"],' + |
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111 | this.selector + '[href="' + target + '"]' |
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112 | |||
113 | var active = $(selector) |
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114 | .parents('li') |
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115 | .addClass('active') |
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116 | |||
117 | if (active.parent('.dropdown-menu').length) { |
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118 | active = active |
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119 | .closest('li.dropdown') |
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120 | .addClass('active') |
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121 | } |
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122 | |||
123 | active.trigger('activate.bs.scrollspy') |
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124 | } |
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125 | |||
126 | ScrollSpy.prototype.clear = function () { |
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127 | $(this.selector) |
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128 | .parentsUntil(this.options.target, '.active') |
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129 | .removeClass('active') |
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130 | } |
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131 | |||
132 | |||
133 | // SCROLLSPY PLUGIN DEFINITION |
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134 | // =========================== |
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135 | |||
136 | function Plugin(option) { |
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137 | return this.each(function () { |
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138 | var $this = $(this) |
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139 | var data = $this.data('bs.scrollspy') |
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140 | var options = typeof option == 'object' && option |
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141 | |||
142 | if (!data) $this.data('bs.scrollspy', (data = new ScrollSpy(this, options))) |
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143 | if (typeof option == 'string') data[option]() |
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144 | }) |
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145 | } |
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146 | |||
147 | var old = $.fn.scrollspy |
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148 | |||
149 | $.fn.scrollspy = Plugin |
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150 | $.fn.scrollspy.Constructor = ScrollSpy |
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151 | |||
152 | |||
153 | // SCROLLSPY NO CONFLICT |
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154 | // ===================== |
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155 | |||
156 | $.fn.scrollspy.noConflict = function () { |
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157 | $.fn.scrollspy = old |
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158 | return this |
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159 | } |
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160 | |||
161 | |||
162 | // SCROLLSPY DATA-API |
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163 | // ================== |
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164 | |||
165 | $(window).on('load.bs.scrollspy.data-api', function () { |
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166 | $('[data-spy="scroll"]').each(function () { |
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167 | var $spy = $(this) |
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168 | Plugin.call($spy, $spy.data()) |
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169 | }) |
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170 | }) |
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171 | |||
172 | }(jQuery); |