1 | /*! |
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2 | * jCarousel - Riding carousels with jQuery |
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3 | * http://sorgalla.com/jcarousel/ |
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4 | * |
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5 | * Copyright (c) 2006 Jan Sorgalla (http://sorgalla.com) |
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6 | * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) |
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7 | * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses. |
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8 | * |
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9 | * Built on top of the jQuery library |
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10 | * http://jquery.com |
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11 | * |
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12 | * Inspired by the "Carousel Component" by Bill Scott |
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13 | * http://billwscott.com/carousel/ |
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14 | */ |
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15 | |
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16 | /*global window, jQuery */ |
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17 | (function($) { |
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18 | // Default configuration properties. |
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19 | var defaults = { |
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20 | vertical: false, |
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21 | rtl: false, |
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22 | start: 1, |
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23 | offset: 1, |
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24 | size: null, |
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25 | scroll: 3, |
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26 | visible: null, |
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27 | animation: 'normal', |
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28 | easing: 'swing', |
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29 | auto: 0, |
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30 | wrap: null, |
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31 | initCallback: null, |
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32 | setupCallback: null, |
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33 | reloadCallback: null, |
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34 | itemLoadCallback: null, |
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35 | itemFirstInCallback: null, |
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36 | itemFirstOutCallback: null, |
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37 | itemLastInCallback: null, |
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38 | itemLastOutCallback: null, |
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39 | itemVisibleInCallback: null, |
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40 | itemVisibleOutCallback: null, |
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41 | animationStepCallback: null, |
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42 | buttonNextHTML: '<div></div>', |
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43 | buttonPrevHTML: '<div></div>', |
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44 | buttonNextEvent: 'click', |
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45 | buttonPrevEvent: 'click', |
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46 | buttonNextCallback: null, |
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47 | buttonPrevCallback: null, |
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48 | itemFallbackDimension: null |
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49 | }, windowLoaded = false; |
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50 | |
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51 | $(window).bind('load.jcarousel', function() { windowLoaded = true; }); |
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52 | |
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53 | /** |
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54 | * The jCarousel object. |
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55 | * |
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56 | * @constructor |
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57 | * @class jcarousel |
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58 | * @param e {HTMLElement} The element to create the carousel for. |
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59 | * @param o {Object} A set of key/value pairs to set as configuration properties. |
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60 | * @cat Plugins/jCarousel |
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61 | */ |
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62 | $.jcarousel = function(e, o) { |
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63 | this.options = $.extend({}, defaults, o || {}); |
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64 | |
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65 | this.locked = false; |
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66 | this.autoStopped = false; |
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67 | |
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68 | this.container = null; |
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69 | this.clip = null; |
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70 | this.list = null; |
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71 | this.buttonNext = null; |
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72 | this.buttonPrev = null; |
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73 | this.buttonNextState = null; |
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74 | this.buttonPrevState = null; |
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75 | |
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76 | // Only set if not explicitly passed as option |
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77 | if (!o || o.rtl === undefined) { |
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78 | this.options.rtl = ($(e).attr('dir') || $('html').attr('dir') || '').toLowerCase() == 'rtl'; |
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79 | } |
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80 | |
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81 | this.wh = !this.options.vertical ? 'width' : 'height'; |
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82 | this.lt = !this.options.vertical ? (this.options.rtl ? 'right' : 'left') : 'top'; |
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83 | |
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84 | // Extract skin class |
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85 | var skin = '', split = e.className.split(' '); |
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86 | |
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87 | for (var i = 0; i < split.length; i++) { |
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88 | if (split[i].indexOf('jcarousel-skin') != -1) { |
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89 | $(e).removeClass(split[i]); |
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90 | skin = split[i]; |
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91 | break; |
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92 | } |
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93 | } |
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94 | |
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95 | if (e.nodeName.toUpperCase() == 'UL' || e.nodeName.toUpperCase() == 'OL') { |
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96 | this.list = $(e); |
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97 | this.clip = this.list.parents('.jcarousel-clip'); |
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98 | this.container = this.list.parents('.jcarousel-container'); |
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99 | } else { |
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100 | this.container = $(e); |
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101 | this.list = this.container.find('ul,ol').eq(0); |
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102 | this.clip = this.container.find('.jcarousel-clip'); |
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103 | } |
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104 | |
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105 | if (this.clip.size() === 0) { |
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106 | this.clip = this.list.wrap('<div></div>').parent(); |
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107 | } |
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108 | |
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109 | if (this.container.size() === 0) { |
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110 | this.container = this.clip.wrap('<div></div>').parent(); |
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111 | } |
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112 | |
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113 | if (skin !== '' && this.container.parent()[0].className.indexOf('jcarousel-skin') == -1) { |
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114 | this.container.wrap('<div class=" '+ skin + '"></div>'); |
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115 | } |
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116 | |
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117 | this.buttonPrev = $('.jcarousel-prev', this.container); |
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118 | |
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119 | if (this.buttonPrev.size() === 0 && this.options.buttonPrevHTML !== null) { |
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120 | this.buttonPrev = $(this.options.buttonPrevHTML).appendTo(this.container); |
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121 | } |
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122 | |
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123 | this.buttonPrev.addClass(this.className('jcarousel-prev')); |
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124 | |
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125 | this.buttonNext = $('.jcarousel-next', this.container); |
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126 | |
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127 | if (this.buttonNext.size() === 0 && this.options.buttonNextHTML !== null) { |
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128 | this.buttonNext = $(this.options.buttonNextHTML).appendTo(this.container); |
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129 | } |
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130 | |
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131 | this.buttonNext.addClass(this.className('jcarousel-next')); |
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132 | |
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133 | this.clip.addClass(this.className('jcarousel-clip')).css({ |
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134 | position: 'relative' |
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135 | }); |
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136 | |
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137 | this.list.addClass(this.className('jcarousel-list')).css({ |
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138 | overflow: 'hidden', |
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139 | position: 'relative', |
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140 | top: 0, |
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141 | margin: 0, |
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142 | padding: 0 |
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143 | }).css((this.options.rtl ? 'right' : 'left'), 0); |
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144 | |
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145 | this.container.addClass(this.className('jcarousel-container')).css({ |
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146 | position: 'relative' |
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147 | }); |
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148 | |
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149 | if (!this.options.vertical && this.options.rtl) { |
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150 | this.container.addClass('jcarousel-direction-rtl').attr('dir', 'rtl'); |
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151 | } |
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152 | |
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153 | var di = this.options.visible !== null ? Math.ceil(this.clipping() / this.options.visible) : null; |
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154 | var li = this.list.children('li'); |
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155 | |
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156 | var self = this; |
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157 | |
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158 | if (li.size() > 0) { |
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159 | var wh = 0, j = this.options.offset; |
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160 | li.each(function() { |
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161 | self.format(this, j++); |
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162 | wh += self.dimension(this, di); |
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163 | }); |
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164 | |
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165 | this.list.css(this.wh, (wh + 100) + 'px'); |
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166 | |
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167 | // Only set if not explicitly passed as option |
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168 | if (!o || o.size === undefined) { |
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169 | this.options.size = li.size(); |
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170 | } |
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171 | } |
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172 | |
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173 | // For whatever reason, .show() does not work in Safari... |
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174 | this.container.css('display', 'block'); |
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175 | this.buttonNext.css('display', 'block'); |
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176 | this.buttonPrev.css('display', 'block'); |
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177 | |
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178 | this.funcNext = function() { self.next(); }; |
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179 | this.funcPrev = function() { self.prev(); }; |
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180 | this.funcResize = function() { |
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181 | if (self.resizeTimer) { |
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182 | clearTimeout(self.resizeTimer); |
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183 | } |
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184 | |
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185 | self.resizeTimer = setTimeout(function() { |
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186 | self.reload(); |
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187 | }, 100); |
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188 | }; |
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189 | |
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190 | if (this.options.initCallback !== null) { |
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191 | this.options.initCallback(this, 'init'); |
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192 | } |
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193 | |
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194 | if (!windowLoaded && $.browser.safari) { |
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195 | this.buttons(false, false); |
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196 | $(window).bind('load.jcarousel', function() { self.setup(); }); |
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197 | } else { |
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198 | this.setup(); |
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199 | } |
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200 | }; |
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201 | |
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202 | // Create shortcut for internal use |
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203 | var $jc = $.jcarousel; |
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204 | |
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205 | $jc.fn = $jc.prototype = { |
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206 | jcarousel: '0.2.8' |
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207 | }; |
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208 | |
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209 | $jc.fn.extend = $jc.extend = $.extend; |
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210 | |
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211 | $jc.fn.extend({ |
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212 | /** |
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213 | * Setups the carousel. |
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214 | * |
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215 | * @method setup |
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216 | * @return undefined |
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217 | */ |
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218 | setup: function() { |
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219 | this.first = null; |
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220 | this.last = null; |
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221 | this.prevFirst = null; |
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222 | this.prevLast = null; |
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223 | this.animating = false; |
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224 | this.timer = null; |
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225 | this.resizeTimer = null; |
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226 | this.tail = null; |
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227 | this.inTail = false; |
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228 | |
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229 | if (this.locked) { |
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230 | return; |
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231 | } |
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232 | |
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233 | this.list.css(this.lt, this.pos(this.options.offset) + 'px'); |
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234 | var p = this.pos(this.options.start, true); |
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235 | this.prevFirst = this.prevLast = null; |
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236 | this.animate(p, false); |
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237 | |
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238 | $(window).unbind('resize.jcarousel', this.funcResize).bind('resize.jcarousel', this.funcResize); |
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239 | |
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240 | if (this.options.setupCallback !== null) { |
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241 | this.options.setupCallback(this); |
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242 | } |
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243 | }, |
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244 | |
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245 | /** |
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246 | * Clears the list and resets the carousel. |
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247 | * |
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248 | * @method reset |
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249 | * @return undefined |
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250 | */ |
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251 | reset: function() { |
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252 | this.list.empty(); |
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253 | |
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254 | this.list.css(this.lt, '0px'); |
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255 | this.list.css(this.wh, '10px'); |
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256 | |
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257 | if (this.options.initCallback !== null) { |
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258 | this.options.initCallback(this, 'reset'); |
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259 | } |
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260 | |
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261 | this.setup(); |
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262 | }, |
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263 | |
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264 | /** |
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265 | * Reloads the carousel and adjusts positions. |
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266 | * |
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267 | * @method reload |
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268 | * @return undefined |
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269 | */ |
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270 | reload: function() { |
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271 | if (this.tail !== null && this.inTail) { |
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272 | this.list.css(this.lt, $jc.intval(this.list.css(this.lt)) + this.tail); |
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273 | } |
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274 | |
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275 | this.tail = null; |
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276 | this.inTail = false; |
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277 | |
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278 | if (this.options.reloadCallback !== null) { |
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279 | this.options.reloadCallback(this); |
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280 | } |
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281 | |
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282 | if (this.options.visible !== null) { |
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283 | var self = this; |
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284 | var di = Math.ceil(this.clipping() / this.options.visible), wh = 0, lt = 0; |
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285 | this.list.children('li').each(function(i) { |
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286 | wh += self.dimension(this, di); |
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287 | if (i + 1 < self.first) { |
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288 | lt = wh; |
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289 | } |
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290 | }); |
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291 | |
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292 | this.list.css(this.wh, wh + 'px'); |
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293 | this.list.css(this.lt, -lt + 'px'); |
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294 | } |
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295 | |
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296 | this.scroll(this.first, false); |
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297 | }, |
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298 | |
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299 | /** |
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300 | * Locks the carousel. |
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301 | * |
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302 | * @method lock |
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303 | * @return undefined |
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304 | */ |
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305 | lock: function() { |
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306 | this.locked = true; |
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307 | this.buttons(); |
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308 | }, |
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309 | |
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310 | /** |
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311 | * Unlocks the carousel. |
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312 | * |
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313 | * @method unlock |
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314 | * @return undefined |
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315 | */ |
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316 | unlock: function() { |
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317 | this.locked = false; |
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318 | this.buttons(); |
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319 | }, |
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320 | |
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321 | /** |
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322 | * Sets the size of the carousel. |
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323 | * |
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324 | * @method size |
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325 | * @return undefined |
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326 | * @param s {Number} The size of the carousel. |
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327 | */ |
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328 | size: function(s) { |
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329 | if (s !== undefined) { |
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330 | this.options.size = s; |
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331 | if (!this.locked) { |
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332 | this.buttons(); |
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333 | } |
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334 | } |
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335 | |
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336 | return this.options.size; |
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337 | }, |
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338 | |
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339 | /** |
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340 | * Checks whether a list element exists for the given index (or index range). |
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341 | * |
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342 | * @method get |
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343 | * @return bool |
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344 | * @param i {Number} The index of the (first) element. |
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345 | * @param i2 {Number} The index of the last element. |
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346 | */ |
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347 | has: function(i, i2) { |
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348 | if (i2 === undefined || !i2) { |
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349 | i2 = i; |
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350 | } |
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351 | |
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352 | if (this.options.size !== null && i2 > this.options.size) { |
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353 | i2 = this.options.size; |
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354 | } |
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355 | |
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356 | for (var j = i; j <= i2; j++) { |
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357 | var e = this.get(j); |
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358 | if (!e.length || e.hasClass('jcarousel-item-placeholder')) { |
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359 | return false; |
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360 | } |
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361 | } |
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362 | |
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363 | return true; |
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364 | }, |
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365 | |
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366 | /** |
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367 | * Returns a jQuery object with list element for the given index. |
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368 | * |
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369 | * @method get |
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370 | * @return jQuery |
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371 | * @param i {Number} The index of the element. |
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372 | */ |
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373 | get: function(i) { |
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374 | return $('>.jcarousel-item-' + i, this.list); |
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375 | }, |
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376 | |
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377 | /** |
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378 | * Adds an element for the given index to the list. |
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379 | * If the element already exists, it updates the inner html. |
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380 | * Returns the created element as jQuery object. |
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381 | * |
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382 | * @method add |
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383 | * @return jQuery |
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384 | * @param i {Number} The index of the element. |
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385 | * @param s {String} The innerHTML of the element. |
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386 | */ |
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387 | add: function(i, s) { |
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388 | var e = this.get(i), old = 0, n = $(s); |
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389 | |
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390 | if (e.length === 0) { |
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391 | var c, j = $jc.intval(i); |
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392 | e = this.create(i); |
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393 | while (true) { |
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394 | c = this.get(--j); |
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395 | if (j <= 0 || c.length) { |
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396 | if (j <= 0) { |
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397 | this.list.prepend(e); |
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398 | } else { |
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399 | c.after(e); |
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400 | } |
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401 | break; |
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402 | } |
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403 | } |
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404 | } else { |
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405 | old = this.dimension(e); |
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406 | } |
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407 | |
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408 | if (n.get(0).nodeName.toUpperCase() == 'LI') { |
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409 | e.replaceWith(n); |
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410 | e = n; |
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411 | } else { |
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412 | e.empty().append(s); |
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413 | } |
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414 | |
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415 | this.format(e.removeClass(this.className('jcarousel-item-placeholder')), i); |
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416 | |
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417 | var di = this.options.visible !== null ? Math.ceil(this.clipping() / this.options.visible) : null; |
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418 | var wh = this.dimension(e, di) - old; |
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419 | |
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420 | if (i > 0 && i < this.first) { |
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421 | this.list.css(this.lt, $jc.intval(this.list.css(this.lt)) - wh + 'px'); |
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422 | } |
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423 | |
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424 | this.list.css(this.wh, $jc.intval(this.list.css(this.wh)) + wh + 'px'); |
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425 | |
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426 | return e; |
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427 | }, |
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428 | |
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429 | /** |
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430 | * Removes an element for the given index from the list. |
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431 | * |
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432 | * @method remove |
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433 | * @return undefined |
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434 | * @param i {Number} The index of the element. |
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435 | */ |
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436 | remove: function(i) { |
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437 | var e = this.get(i); |
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438 | |
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439 | // Check if item exists and is not currently visible |
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440 | if (!e.length || (i >= this.first && i <= this.last)) { |
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441 | return; |
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442 | } |
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443 | |
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444 | var d = this.dimension(e); |
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445 | |
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446 | if (i < this.first) { |
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447 | this.list.css(this.lt, $jc.intval(this.list.css(this.lt)) + d + 'px'); |
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448 | } |
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449 | |
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450 | e.remove(); |
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451 | |
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452 | this.list.css(this.wh, $jc.intval(this.list.css(this.wh)) - d + 'px'); |
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453 | }, |
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454 | |
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455 | /** |
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456 | * Moves the carousel forwards. |
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457 | * |
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458 | * @method next |
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459 | * @return undefined |
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460 | */ |
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461 | next: function() { |
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462 | if (this.tail !== null && !this.inTail) { |
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463 | this.scrollTail(false); |
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464 | } else { |
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465 | this.scroll(((this.options.wrap == 'both' || this.options.wrap == 'last') && this.options.size !== null && this.last == this.options.size) ? 1 : this.first + this.options.scroll); |
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466 | } |
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467 | }, |
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468 | |
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469 | /** |
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470 | * Moves the carousel backwards. |
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471 | * |
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472 | * @method prev |
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473 | * @return undefined |
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474 | */ |
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475 | prev: function() { |
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476 | if (this.tail !== null && this.inTail) { |
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477 | this.scrollTail(true); |
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478 | } else { |
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479 | this.scroll(((this.options.wrap == 'both' || this.options.wrap == 'first') && this.options.size !== null && this.first == 1) ? this.options.size : this.first - this.options.scroll); |
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480 | } |
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481 | }, |
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482 | |
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483 | /** |
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484 | * Scrolls the tail of the carousel. |
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485 | * |
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486 | * @method scrollTail |
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487 | * @return undefined |
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488 | * @param b {Boolean} Whether scroll the tail back or forward. |
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489 | */ |
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490 | scrollTail: function(b) { |
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491 | if (this.locked || this.animating || !this.tail) { |
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492 | return; |
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493 | } |
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494 | |
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495 | this.pauseAuto(); |
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496 | |
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497 | var pos = $jc.intval(this.list.css(this.lt)); |
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498 | |
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499 | pos = !b ? pos - this.tail : pos + this.tail; |
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500 | this.inTail = !b; |
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501 | |
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502 | // Save for callbacks |
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503 | this.prevFirst = this.first; |
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504 | this.prevLast = this.last; |
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505 | |
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506 | this.animate(pos); |
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507 | }, |
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508 | |
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509 | /** |
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510 | * Scrolls the carousel to a certain position. |
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511 | * |
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512 | * @method scroll |
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513 | * @return undefined |
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514 | * @param i {Number} The index of the element to scoll to. |
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515 | * @param a {Boolean} Flag indicating whether to perform animation. |
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516 | */ |
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517 | scroll: function(i, a) { |
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518 | if (this.locked || this.animating) { |
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519 | return; |
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520 | } |
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521 | |
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522 | this.pauseAuto(); |
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523 | this.animate(this.pos(i), a); |
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524 | }, |
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525 | |
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526 | /** |
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527 | * Prepares the carousel and return the position for a certian index. |
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528 | * |
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529 | * @method pos |
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530 | * @return {Number} |
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531 | * @param i {Number} The index of the element to scoll to. |
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532 | * @param fv {Boolean} Whether to force last item to be visible. |
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533 | */ |
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534 | pos: function(i, fv) { |
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535 | var pos = $jc.intval(this.list.css(this.lt)); |
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536 | |
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537 | if (this.locked || this.animating) { |
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538 | return pos; |
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539 | } |
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540 | |
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541 | if (this.options.wrap != 'circular') { |
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542 | i = i < 1 ? 1 : (this.options.size && i > this.options.size ? this.options.size : i); |
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543 | } |
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544 | |
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545 | var back = this.first > i; |
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546 | |
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547 | // Create placeholders, new list width/height |
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548 | // and new list position |
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549 | var f = this.options.wrap != 'circular' && this.first <= 1 ? 1 : this.first; |
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550 | var c = back ? this.get(f) : this.get(this.last); |
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551 | var j = back ? f : f - 1; |
---|
552 | var e = null, l = 0, p = false, d = 0, g; |
---|
553 | |
---|
554 | while (back ? --j >= i : ++j < i) { |
---|
555 | e = this.get(j); |
---|
556 | p = !e.length; |
---|
557 | if (e.length === 0) { |
---|
558 | e = this.create(j).addClass(this.className('jcarousel-item-placeholder')); |
---|
559 | c[back ? 'before' : 'after' ](e); |
---|
560 | |
---|
561 | if (this.first !== null && this.options.wrap == 'circular' && this.options.size !== null && (j <= 0 || j > this.options.size)) { |
---|
562 | g = this.get(this.index(j)); |
---|
563 | if (g.length) { |
---|
564 | e = this.add(j, g.clone(true)); |
---|
565 | } |
---|
566 | } |
---|
567 | } |
---|
568 | |
---|
569 | c = e; |
---|
570 | d = this.dimension(e); |
---|
571 | |
---|
572 | if (p) { |
---|
573 | l += d; |
---|
574 | } |
---|
575 | |
---|
576 | if (this.first !== null && (this.options.wrap == 'circular' || (j >= 1 && (this.options.size === null || j <= this.options.size)))) { |
---|
577 | pos = back ? pos + d : pos - d; |
---|
578 | } |
---|
579 | } |
---|
580 | |
---|
581 | // Calculate visible items |
---|
582 | var clipping = this.clipping(), cache = [], visible = 0, v = 0; |
---|
583 | c = this.get(i - 1); |
---|
584 | j = i; |
---|
585 | |
---|
586 | while (++visible) { |
---|
587 | e = this.get(j); |
---|
588 | p = !e.length; |
---|
589 | if (e.length === 0) { |
---|
590 | e = this.create(j).addClass(this.className('jcarousel-item-placeholder')); |
---|
591 | // This should only happen on a next scroll |
---|
592 | if (c.length === 0) { |
---|
593 | this.list.prepend(e); |
---|
594 | } else { |
---|
595 | c[back ? 'before' : 'after' ](e); |
---|
596 | } |
---|
597 | |
---|
598 | if (this.first !== null && this.options.wrap == 'circular' && this.options.size !== null && (j <= 0 || j > this.options.size)) { |
---|
599 | g = this.get(this.index(j)); |
---|
600 | if (g.length) { |
---|
601 | e = this.add(j, g.clone(true)); |
---|
602 | } |
---|
603 | } |
---|
604 | } |
---|
605 | |
---|
606 | c = e; |
---|
607 | d = this.dimension(e); |
---|
608 | if (d === 0) { |
---|
609 | throw new Error('jCarousel: No width/height set for items. This will cause an infinite loop. Aborting...'); |
---|
610 | } |
---|
611 | |
---|
612 | if (this.options.wrap != 'circular' && this.options.size !== null && j > this.options.size) { |
---|
613 | cache.push(e); |
---|
614 | } else if (p) { |
---|
615 | l += d; |
---|
616 | } |
---|
617 | |
---|
618 | v += d; |
---|
619 | |
---|
620 | if (v >= clipping) { |
---|
621 | break; |
---|
622 | } |
---|
623 | |
---|
624 | j++; |
---|
625 | } |
---|
626 | |
---|
627 | // Remove out-of-range placeholders |
---|
628 | for (var x = 0; x < cache.length; x++) { |
---|
629 | cache[x].remove(); |
---|
630 | } |
---|
631 | |
---|
632 | // Resize list |
---|
633 | if (l > 0) { |
---|
634 | this.list.css(this.wh, this.dimension(this.list) + l + 'px'); |
---|
635 | |
---|
636 | if (back) { |
---|
637 | pos -= l; |
---|
638 | this.list.css(this.lt, $jc.intval(this.list.css(this.lt)) - l + 'px'); |
---|
639 | } |
---|
640 | } |
---|
641 | |
---|
642 | // Calculate first and last item |
---|
643 | var last = i + visible - 1; |
---|
644 | if (this.options.wrap != 'circular' && this.options.size && last > this.options.size) { |
---|
645 | last = this.options.size; |
---|
646 | } |
---|
647 | |
---|
648 | if (j > last) { |
---|
649 | visible = 0; |
---|
650 | j = last; |
---|
651 | v = 0; |
---|
652 | while (++visible) { |
---|
653 | e = this.get(j--); |
---|
654 | if (!e.length) { |
---|
655 | break; |
---|
656 | } |
---|
657 | v += this.dimension(e); |
---|
658 | if (v >= clipping) { |
---|
659 | break; |
---|
660 | } |
---|
661 | } |
---|
662 | } |
---|
663 | |
---|
664 | var first = last - visible + 1; |
---|
665 | if (this.options.wrap != 'circular' && first < 1) { |
---|
666 | first = 1; |
---|
667 | } |
---|
668 | |
---|
669 | if (this.inTail && back) { |
---|
670 | pos += this.tail; |
---|
671 | this.inTail = false; |
---|
672 | } |
---|
673 | |
---|
674 | this.tail = null; |
---|
675 | if (this.options.wrap != 'circular' && last == this.options.size && (last - visible + 1) >= 1) { |
---|
676 | var m = $jc.intval(this.get(last).css(!this.options.vertical ? 'marginRight' : 'marginBottom')); |
---|
677 | if ((v - m) > clipping) { |
---|
678 | this.tail = v - clipping - m; |
---|
679 | } |
---|
680 | } |
---|
681 | |
---|
682 | if (fv && i === this.options.size && this.tail) { |
---|
683 | pos -= this.tail; |
---|
684 | this.inTail = true; |
---|
685 | } |
---|
686 | |
---|
687 | // Adjust position |
---|
688 | while (i-- > first) { |
---|
689 | pos += this.dimension(this.get(i)); |
---|
690 | } |
---|
691 | |
---|
692 | // Save visible item range |
---|
693 | this.prevFirst = this.first; |
---|
694 | this.prevLast = this.last; |
---|
695 | this.first = first; |
---|
696 | this.last = last; |
---|
697 | |
---|
698 | return pos; |
---|
699 | }, |
---|
700 | |
---|
701 | /** |
---|
702 | * Animates the carousel to a certain position. |
---|
703 | * |
---|
704 | * @method animate |
---|
705 | * @return undefined |
---|
706 | * @param p {Number} Position to scroll to. |
---|
707 | * @param a {Boolean} Flag indicating whether to perform animation. |
---|
708 | */ |
---|
709 | animate: function(p, a) { |
---|
710 | if (this.locked || this.animating) { |
---|
711 | return; |
---|
712 | } |
---|
713 | |
---|
714 | this.animating = true; |
---|
715 | |
---|
716 | var self = this; |
---|
717 | var scrolled = function() { |
---|
718 | self.animating = false; |
---|
719 | |
---|
720 | if (p === 0) { |
---|
721 | self.list.css(self.lt, 0); |
---|
722 | } |
---|
723 | |
---|
724 | if (!self.autoStopped && (self.options.wrap == 'circular' || self.options.wrap == 'both' || self.options.wrap == 'last' || self.options.size === null || self.last < self.options.size || (self.last == self.options.size && self.tail !== null && !self.inTail))) { |
---|
725 | self.startAuto(); |
---|
726 | } |
---|
727 | |
---|
728 | self.buttons(); |
---|
729 | self.notify('onAfterAnimation'); |
---|
730 | |
---|
731 | // This function removes items which are appended automatically for circulation. |
---|
732 | // This prevents the list from growing infinitely. |
---|
733 | if (self.options.wrap == 'circular' && self.options.size !== null) { |
---|
734 | for (var i = self.prevFirst; i <= self.prevLast; i++) { |
---|
735 | if (i !== null && !(i >= self.first && i <= self.last) && (i < 1 || i > self.options.size)) { |
---|
736 | self.remove(i); |
---|
737 | } |
---|
738 | } |
---|
739 | } |
---|
740 | }; |
---|
741 | |
---|
742 | this.notify('onBeforeAnimation'); |
---|
743 | |
---|
744 | // Animate |
---|
745 | if (!this.options.animation || a === false) { |
---|
746 | this.list.css(this.lt, p + 'px'); |
---|
747 | scrolled(); |
---|
748 | } else { |
---|
749 | var o = !this.options.vertical ? (this.options.rtl ? {'right': p} : {'left': p}) : {'top': p}; |
---|
750 | // Define animation settings. |
---|
751 | var settings = { |
---|
752 | duration: this.options.animation, |
---|
753 | easing: this.options.easing, |
---|
754 | complete: scrolled |
---|
755 | }; |
---|
756 | // If we have a step callback, specify it as well. |
---|
757 | if ($.isFunction(this.options.animationStepCallback)) { |
---|
758 | settings.step = this.options.animationStepCallback; |
---|
759 | } |
---|
760 | // Start the animation. |
---|
761 | this.list.animate(o, settings); |
---|
762 | } |
---|
763 | }, |
---|
764 | |
---|
765 | /** |
---|
766 | * Starts autoscrolling. |
---|
767 | * |
---|
768 | * @method auto |
---|
769 | * @return undefined |
---|
770 | * @param s {Number} Seconds to periodically autoscroll the content. |
---|
771 | */ |
---|
772 | startAuto: function(s) { |
---|
773 | if (s !== undefined) { |
---|
774 | this.options.auto = s; |
---|
775 | } |
---|
776 | |
---|
777 | if (this.options.auto === 0) { |
---|
778 | return this.stopAuto(); |
---|
779 | } |
---|
780 | |
---|
781 | if (this.timer !== null) { |
---|
782 | return; |
---|
783 | } |
---|
784 | |
---|
785 | this.autoStopped = false; |
---|
786 | |
---|
787 | var self = this; |
---|
788 | this.timer = window.setTimeout(function() { self.next(); }, this.options.auto * 1000); |
---|
789 | }, |
---|
790 | |
---|
791 | /** |
---|
792 | * Stops autoscrolling. |
---|
793 | * |
---|
794 | * @method stopAuto |
---|
795 | * @return undefined |
---|
796 | */ |
---|
797 | stopAuto: function() { |
---|
798 | this.pauseAuto(); |
---|
799 | this.autoStopped = true; |
---|
800 | }, |
---|
801 | |
---|
802 | /** |
---|
803 | * Pauses autoscrolling. |
---|
804 | * |
---|
805 | * @method pauseAuto |
---|
806 | * @return undefined |
---|
807 | */ |
---|
808 | pauseAuto: function() { |
---|
809 | if (this.timer === null) { |
---|
810 | return; |
---|
811 | } |
---|
812 | |
---|
813 | window.clearTimeout(this.timer); |
---|
814 | this.timer = null; |
---|
815 | }, |
---|
816 | |
---|
817 | /** |
---|
818 | * Sets the states of the prev/next buttons. |
---|
819 | * |
---|
820 | * @method buttons |
---|
821 | * @return undefined |
---|
822 | */ |
---|
823 | buttons: function(n, p) { |
---|
824 | if (n == null) { |
---|
825 | n = !this.locked && this.options.size !== 0 && ((this.options.wrap && this.options.wrap != 'first') || this.options.size === null || this.last < this.options.size); |
---|
826 | if (!this.locked && (!this.options.wrap || this.options.wrap == 'first') && this.options.size !== null && this.last >= this.options.size) { |
---|
827 | n = this.tail !== null && !this.inTail; |
---|
828 | } |
---|
829 | } |
---|
830 | |
---|
831 | if (p == null) { |
---|
832 | p = !this.locked && this.options.size !== 0 && ((this.options.wrap && this.options.wrap != 'last') || this.first > 1); |
---|
833 | if (!this.locked && (!this.options.wrap || this.options.wrap == 'last') && this.options.size !== null && this.first == 1) { |
---|
834 | p = this.tail !== null && this.inTail; |
---|
835 | } |
---|
836 | } |
---|
837 | |
---|
838 | var self = this; |
---|
839 | |
---|
840 | if (this.buttonNext.size() > 0) { |
---|
841 | this.buttonNext.unbind(this.options.buttonNextEvent + '.jcarousel', this.funcNext); |
---|
842 | |
---|
843 | if (n) { |
---|
844 | this.buttonNext.bind(this.options.buttonNextEvent + '.jcarousel', this.funcNext); |
---|
845 | } |
---|
846 | |
---|
847 | this.buttonNext[n ? 'removeClass' : 'addClass'](this.className('jcarousel-next-disabled')).attr('disabled', n ? false : true); |
---|
848 | |
---|
849 | if (this.options.buttonNextCallback !== null && this.buttonNext.data('jcarouselstate') != n) { |
---|
850 | this.buttonNext.each(function() { self.options.buttonNextCallback(self, this, n); }).data('jcarouselstate', n); |
---|
851 | } |
---|
852 | } else { |
---|
853 | if (this.options.buttonNextCallback !== null && this.buttonNextState != n) { |
---|
854 | this.options.buttonNextCallback(self, null, n); |
---|
855 | } |
---|
856 | } |
---|
857 | |
---|
858 | if (this.buttonPrev.size() > 0) { |
---|
859 | this.buttonPrev.unbind(this.options.buttonPrevEvent + '.jcarousel', this.funcPrev); |
---|
860 | |
---|
861 | if (p) { |
---|
862 | this.buttonPrev.bind(this.options.buttonPrevEvent + '.jcarousel', this.funcPrev); |
---|
863 | } |
---|
864 | |
---|
865 | this.buttonPrev[p ? 'removeClass' : 'addClass'](this.className('jcarousel-prev-disabled')).attr('disabled', p ? false : true); |
---|
866 | |
---|
867 | if (this.options.buttonPrevCallback !== null && this.buttonPrev.data('jcarouselstate') != p) { |
---|
868 | this.buttonPrev.each(function() { self.options.buttonPrevCallback(self, this, p); }).data('jcarouselstate', p); |
---|
869 | } |
---|
870 | } else { |
---|
871 | if (this.options.buttonPrevCallback !== null && this.buttonPrevState != p) { |
---|
872 | this.options.buttonPrevCallback(self, null, p); |
---|
873 | } |
---|
874 | } |
---|
875 | |
---|
876 | this.buttonNextState = n; |
---|
877 | this.buttonPrevState = p; |
---|
878 | }, |
---|
879 | |
---|
880 | /** |
---|
881 | * Notify callback of a specified event. |
---|
882 | * |
---|
883 | * @method notify |
---|
884 | * @return undefined |
---|
885 | * @param evt {String} The event name |
---|
886 | */ |
---|
887 | notify: function(evt) { |
---|
888 | var state = this.prevFirst === null ? 'init' : (this.prevFirst < this.first ? 'next' : 'prev'); |
---|
889 | |
---|
890 | // Load items |
---|
891 | this.callback('itemLoadCallback', evt, state); |
---|
892 | |
---|
893 | if (this.prevFirst !== this.first) { |
---|
894 | this.callback('itemFirstInCallback', evt, state, this.first); |
---|
895 | this.callback('itemFirstOutCallback', evt, state, this.prevFirst); |
---|
896 | } |
---|
897 | |
---|
898 | if (this.prevLast !== this.last) { |
---|
899 | this.callback('itemLastInCallback', evt, state, this.last); |
---|
900 | this.callback('itemLastOutCallback', evt, state, this.prevLast); |
---|
901 | } |
---|
902 | |
---|
903 | this.callback('itemVisibleInCallback', evt, state, this.first, this.last, this.prevFirst, this.prevLast); |
---|
904 | this.callback('itemVisibleOutCallback', evt, state, this.prevFirst, this.prevLast, this.first, this.last); |
---|
905 | }, |
---|
906 | |
---|
907 | callback: function(cb, evt, state, i1, i2, i3, i4) { |
---|
908 | if (this.options[cb] == null || (typeof this.options[cb] != 'object' && evt != 'onAfterAnimation')) { |
---|
909 | return; |
---|
910 | } |
---|
911 | |
---|
912 | var callback = typeof this.options[cb] == 'object' ? this.options[cb][evt] : this.options[cb]; |
---|
913 | |
---|
914 | if (!$.isFunction(callback)) { |
---|
915 | return; |
---|
916 | } |
---|
917 | |
---|
918 | var self = this; |
---|
919 | |
---|
920 | if (i1 === undefined) { |
---|
921 | callback(self, state, evt); |
---|
922 | } else if (i2 === undefined) { |
---|
923 | this.get(i1).each(function() { callback(self, this, i1, state, evt); }); |
---|
924 | } else { |
---|
925 | var call = function(i) { |
---|
926 | self.get(i).each(function() { callback(self, this, i, state, evt); }); |
---|
927 | }; |
---|
928 | for (var i = i1; i <= i2; i++) { |
---|
929 | if (i !== null && !(i >= i3 && i <= i4)) { |
---|
930 | call(i); |
---|
931 | } |
---|
932 | } |
---|
933 | } |
---|
934 | }, |
---|
935 | |
---|
936 | create: function(i) { |
---|
937 | return this.format('<li></li>', i); |
---|
938 | }, |
---|
939 | |
---|
940 | format: function(e, i) { |
---|
941 | e = $(e); |
---|
942 | var split = e.get(0).className.split(' '); |
---|
943 | for (var j = 0; j < split.length; j++) { |
---|
944 | if (split[j].indexOf('jcarousel-') != -1) { |
---|
945 | e.removeClass(split[j]); |
---|
946 | } |
---|
947 | } |
---|
948 | e.addClass(this.className('jcarousel-item')).addClass(this.className('jcarousel-item-' + i)).css({ |
---|
949 | 'float': (this.options.rtl ? 'right' : 'left'), |
---|
950 | 'list-style': 'none' |
---|
951 | }).attr('jcarouselindex', i); |
---|
952 | return e; |
---|
953 | }, |
---|
954 | |
---|
955 | className: function(c) { |
---|
956 | return c + ' ' + c + (!this.options.vertical ? '-horizontal' : '-vertical'); |
---|
957 | }, |
---|
958 | |
---|
959 | dimension: function(e, d) { |
---|
960 | var el = $(e); |
---|
961 | |
---|
962 | if (d == null) { |
---|
963 | return !this.options.vertical ? |
---|
964 | (el.outerWidth(true) || $jc.intval(this.options.itemFallbackDimension)) : |
---|
965 | (el.outerHeight(true) || $jc.intval(this.options.itemFallbackDimension)); |
---|
966 | } else { |
---|
967 | var w = !this.options.vertical ? |
---|
968 | d - $jc.intval(el.css('marginLeft')) - $jc.intval(el.css('marginRight')) : |
---|
969 | d - $jc.intval(el.css('marginTop')) - $jc.intval(el.css('marginBottom')); |
---|
970 | |
---|
971 | $(el).css(this.wh, w + 'px'); |
---|
972 | |
---|
973 | return this.dimension(el); |
---|
974 | } |
---|
975 | }, |
---|
976 | |
---|
977 | clipping: function() { |
---|
978 | return !this.options.vertical ? |
---|
979 | this.clip[0].offsetWidth - $jc.intval(this.clip.css('borderLeftWidth')) - $jc.intval(this.clip.css('borderRightWidth')) : |
---|
980 | this.clip[0].offsetHeight - $jc.intval(this.clip.css('borderTopWidth')) - $jc.intval(this.clip.css('borderBottomWidth')); |
---|
981 | }, |
---|
982 | |
---|
983 | index: function(i, s) { |
---|
984 | if (s == null) { |
---|
985 | s = this.options.size; |
---|
986 | } |
---|
987 | |
---|
988 | return Math.round((((i-1) / s) - Math.floor((i-1) / s)) * s) + 1; |
---|
989 | } |
---|
990 | }); |
---|
991 | |
---|
992 | $jc.extend({ |
---|
993 | /** |
---|
994 | * Gets/Sets the global default configuration properties. |
---|
995 | * |
---|
996 | * @method defaults |
---|
997 | * @return {Object} |
---|
998 | * @param d {Object} A set of key/value pairs to set as configuration properties. |
---|
999 | */ |
---|
1000 | defaults: function(d) { |
---|
1001 | return $.extend(defaults, d || {}); |
---|
1002 | }, |
---|
1003 | |
---|
1004 | intval: function(v) { |
---|
1005 | v = parseInt(v, 10); |
---|
1006 | return isNaN(v) ? 0 : v; |
---|
1007 | }, |
---|
1008 | |
---|
1009 | windowLoaded: function() { |
---|
1010 | windowLoaded = true; |
---|
1011 | } |
---|
1012 | }); |
---|
1013 | |
---|
1014 | /** |
---|
1015 | * Creates a carousel for all matched elements. |
---|
1016 | * |
---|
1017 | * @example $("#mycarousel").jcarousel(); |
---|
1018 | * @before <ul id="mycarousel" class="jcarousel-skin-name"><li>First item</li><li>Second item</li></ul> |
---|
1019 | * @result |
---|
1020 | * |
---|
1021 | * <div class="jcarousel-skin-name"> |
---|
1022 | * <div class="jcarousel-container"> |
---|
1023 | * <div class="jcarousel-clip"> |
---|
1024 | * <ul class="jcarousel-list"> |
---|
1025 | * <li class="jcarousel-item-1">First item</li> |
---|
1026 | * <li class="jcarousel-item-2">Second item</li> |
---|
1027 | * </ul> |
---|
1028 | * </div> |
---|
1029 | * <div disabled="disabled" class="jcarousel-prev jcarousel-prev-disabled"></div> |
---|
1030 | * <div class="jcarousel-next"></div> |
---|
1031 | * </div> |
---|
1032 | * </div> |
---|
1033 | * |
---|
1034 | * @method jcarousel |
---|
1035 | * @return jQuery |
---|
1036 | * @param o {Hash|String} A set of key/value pairs to set as configuration properties or a method name to call on a formerly created instance. |
---|
1037 | */ |
---|
1038 | $.fn.jcarousel = function(o) { |
---|
1039 | if (typeof o == 'string') { |
---|
1040 | var instance = $(this).data('jcarousel'), args = Array.prototype.slice.call(arguments, 1); |
---|
1041 | return instance[o].apply(instance, args); |
---|
1042 | } else { |
---|
1043 | return this.each(function() { |
---|
1044 | var instance = $(this).data('jcarousel'); |
---|
1045 | if (instance) { |
---|
1046 | if (o) { |
---|
1047 | $.extend(instance.options, o); |
---|
1048 | } |
---|
1049 | instance.reload(); |
---|
1050 | } else { |
---|
1051 | $(this).data('jcarousel', new $jc(this, o)); |
---|
1052 | } |
---|
1053 | }); |
---|
1054 | } |
---|
1055 | }; |
---|
1056 | |
---|
1057 | })(jQuery); |
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