annotate static/bootstrap/js/bootstrap-carousel.js @ 88:a5a3d454eac9

Updated Bootstrap.
author Ludovic Chabant <ludovic@chabant.com>
date Fri, 05 Apr 2013 08:08:12 -0700
parents 130eccd396d8
children
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1 /* ==========================================================
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2 * bootstrap-carousel.js v2.3.1
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3 * http://twitter.github.com/bootstrap/javascript.html#carousel
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4 * ==========================================================
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5 * Copyright 2012 Twitter, Inc.
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6 *
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7 * Licensed under the Apache License, Version 2.0 (the "License");
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8 * you may not use this file except in compliance with the License.
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9 * You may obtain a copy of the License at
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10 *
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11 * http://www.apache.org/licenses/LICENSE-2.0
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12 *
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13 * Unless required by applicable law or agreed to in writing, software
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14 * distributed under the License is distributed on an "AS IS" BASIS,
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15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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16 * See the License for the specific language governing permissions and
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17 * limitations under the License.
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18 * ========================================================== */
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19
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20
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21 !function ($) {
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22
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23 "use strict"; // jshint ;_;
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24
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25
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26 /* CAROUSEL CLASS DEFINITION
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27 * ========================= */
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28
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29 var Carousel = function (element, options) {
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30 this.$element = $(element)
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31 this.$indicators = this.$element.find('.carousel-indicators')
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32 this.options = options
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33 this.options.pause == 'hover' && this.$element
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34 .on('mouseenter', $.proxy(this.pause, this))
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35 .on('mouseleave', $.proxy(this.cycle, this))
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36 }
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37
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38 Carousel.prototype = {
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39
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40 cycle: function (e) {
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41 if (!e) this.paused = false
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42 if (this.interval) clearInterval(this.interval);
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43 this.options.interval
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44 && !this.paused
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45 && (this.interval = setInterval($.proxy(this.next, this), this.options.interval))
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46 return this
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47 }
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48
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49 , getActiveIndex: function () {
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50 this.$active = this.$element.find('.item.active')
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51 this.$items = this.$active.parent().children()
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52 return this.$items.index(this.$active)
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53 }
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54
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55 , to: function (pos) {
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56 var activeIndex = this.getActiveIndex()
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57 , that = this
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58
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59 if (pos > (this.$items.length - 1) || pos < 0) return
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60
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61 if (this.sliding) {
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62 return this.$element.one('slid', function () {
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63 that.to(pos)
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64 })
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65 }
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66
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67 if (activeIndex == pos) {
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68 return this.pause().cycle()
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69 }
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70
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71 return this.slide(pos > activeIndex ? 'next' : 'prev', $(this.$items[pos]))
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72 }
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73
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74 , pause: function (e) {
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75 if (!e) this.paused = true
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76 if (this.$element.find('.next, .prev').length && $.support.transition.end) {
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77 this.$element.trigger($.support.transition.end)
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78 this.cycle(true)
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79 }
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80 clearInterval(this.interval)
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81 this.interval = null
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82 return this
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83 }
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84
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85 , next: function () {
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86 if (this.sliding) return
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87 return this.slide('next')
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88 }
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89
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90 , prev: function () {
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91 if (this.sliding) return
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92 return this.slide('prev')
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93 }
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94
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95 , slide: function (type, next) {
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96 var $active = this.$element.find('.item.active')
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97 , $next = next || $active[type]()
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98 , isCycling = this.interval
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99 , direction = type == 'next' ? 'left' : 'right'
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100 , fallback = type == 'next' ? 'first' : 'last'
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101 , that = this
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102 , e
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103
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104 this.sliding = true
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105
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106 isCycling && this.pause()
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107
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108 $next = $next.length ? $next : this.$element.find('.item')[fallback]()
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109
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110 e = $.Event('slide', {
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111 relatedTarget: $next[0]
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112 , direction: direction
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113 })
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114
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115 if ($next.hasClass('active')) return
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116
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117 if (this.$indicators.length) {
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118 this.$indicators.find('.active').removeClass('active')
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119 this.$element.one('slid', function () {
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120 var $nextIndicator = $(that.$indicators.children()[that.getActiveIndex()])
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121 $nextIndicator && $nextIndicator.addClass('active')
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122 })
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123 }
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124
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125 if ($.support.transition && this.$element.hasClass('slide')) {
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126 this.$element.trigger(e)
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127 if (e.isDefaultPrevented()) return
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128 $next.addClass(type)
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129 $next[0].offsetWidth // force reflow
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130 $active.addClass(direction)
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131 $next.addClass(direction)
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132 this.$element.one($.support.transition.end, function () {
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133 $next.removeClass([type, direction].join(' ')).addClass('active')
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134 $active.removeClass(['active', direction].join(' '))
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135 that.sliding = false
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136 setTimeout(function () { that.$element.trigger('slid') }, 0)
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137 })
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138 } else {
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139 this.$element.trigger(e)
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140 if (e.isDefaultPrevented()) return
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141 $active.removeClass('active')
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142 $next.addClass('active')
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143 this.sliding = false
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144 this.$element.trigger('slid')
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145 }
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146
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147 isCycling && this.cycle()
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148
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149 return this
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150 }
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151
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152 }
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153
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154
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155 /* CAROUSEL PLUGIN DEFINITION
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156 * ========================== */
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157
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158 var old = $.fn.carousel
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159
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160 $.fn.carousel = function (option) {
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161 return this.each(function () {
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162 var $this = $(this)
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163 , data = $this.data('carousel')
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164 , options = $.extend({}, $.fn.carousel.defaults, typeof option == 'object' && option)
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165 , action = typeof option == 'string' ? option : options.slide
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166 if (!data) $this.data('carousel', (data = new Carousel(this, options)))
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167 if (typeof option == 'number') data.to(option)
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168 else if (action) data[action]()
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169 else if (options.interval) data.pause().cycle()
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170 })
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171 }
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172
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173 $.fn.carousel.defaults = {
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174 interval: 5000
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175 , pause: 'hover'
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176 }
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177
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178 $.fn.carousel.Constructor = Carousel
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179
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180
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181 /* CAROUSEL NO CONFLICT
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182 * ==================== */
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183
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184 $.fn.carousel.noConflict = function () {
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185 $.fn.carousel = old
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186 return this
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187 }
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188
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189 /* CAROUSEL DATA-API
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190 * ================= */
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191
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192 $(document).on('click.carousel.data-api', '[data-slide], [data-slide-to]', function (e) {
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193 var $this = $(this), href
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194 , $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7
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195 , options = $.extend({}, $target.data(), $this.data())
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196 , slideIndex
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197
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198 $target.carousel(options)
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199
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200 if (slideIndex = $this.attr('data-slide-to')) {
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201 $target.data('carousel').pause().to(slideIndex).cycle()
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202 }
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203
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204 e.preventDefault()
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205 })
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206
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207 }(window.jQuery);