1 | /* |
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2 | Created By: Chris Campbell |
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3 | Website: http://particletree.com |
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4 | Date: 2/1/2006 |
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5 | |
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6 | Inspired by the lightbox implementation found at http://www.huddletogether.com/projects/lightbox/ |
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7 | */ |
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8 | |
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9 | /*-------------------------------GLOBAL VARIABLES------------------------------------*/ |
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10 | |
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11 | var detect = navigator.userAgent.toLowerCase(); |
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12 | var OS,browser,version,total,thestring; |
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13 | |
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14 | /*-----------------------------------------------------------------------------------------------*/ |
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15 | |
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16 | //Browser detect script origionally created by Peter Paul Koch at http://www.quirksmode.org/ |
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17 | |
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18 | function getBrowserInfo() { |
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19 | if (checkIt('konqueror')) { |
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20 | browser = "Konqueror"; |
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21 | OS = "Linux"; |
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22 | } |
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23 | else if (checkIt('safari')) browser = "Safari"; |
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24 | else if (checkIt('omniweb')) browser = "OmniWeb"; |
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25 | else if (checkIt('opera')) browser = "Opera"; |
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26 | else if (checkIt('webtv')) browser = "WebTV"; |
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27 | else if (checkIt('icab')) browser = "iCab"; |
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28 | else if (checkIt('msie')) browser = "Internet Explorer"; |
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29 | else if (!checkIt('compatible')) { |
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30 | browser = "Netscape Navigator"; |
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31 | version = detect.charAt(8); |
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32 | } |
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33 | else browser = "An unknown browser"; |
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34 | |
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35 | if (!version) version = detect.charAt(place + thestring.length); |
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36 | |
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37 | if (!OS) { |
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38 | if (checkIt('linux')) OS = "Linux"; |
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39 | else if (checkIt('x11')) OS = "Unix"; |
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40 | else if (checkIt('mac')) OS = "Mac"; |
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41 | else if (checkIt('win')) OS = "Windows"; |
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42 | else OS = "an unknown operating system"; |
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43 | } |
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44 | } |
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45 | |
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46 | function checkIt(string) { |
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47 | place = detect.indexOf(string) + 1; |
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48 | thestring = string; |
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49 | return place; |
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50 | } |
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51 | |
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52 | /*-----------------------------------------------------------------------------------------------*/ |
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53 | |
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54 | Event.observe(window, 'load', lb_initialize, false); |
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55 | Event.observe(window, 'load', getBrowserInfo, false); |
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56 | Event.observe(window, 'unload', Event.unloadCache, false); |
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57 | |
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58 | var lightbox = Class.create(); |
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59 | |
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60 | lightbox.prototype = { |
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61 | |
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62 | yPos : 0, |
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63 | xPos : 0, |
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64 | |
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65 | initialize: function(ctrl) { |
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66 | this.content = ctrl.onclick; |
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67 | Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false); |
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68 | ctrl.onclick = function(){return false;}; |
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69 | }, |
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70 | |
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71 | // Turn everything on - mainly the IE fixes |
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72 | activate: function(){ |
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73 | if (browser == 'Internet Explorer'){ |
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74 | this.getScroll(); |
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75 | this.prepareIE('100%', 'hidden'); |
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76 | this.setScroll(0,0); |
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77 | this.hideSelects('hidden'); |
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78 | } |
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79 | this.displayLightbox("block"); |
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80 | }, |
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81 | |
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82 | // Ie requires height to 100% and overflow hidden or else you can scroll down past the lightbox |
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83 | prepareIE: function(height, overflow){ |
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84 | bod = document.getElementsByTagName('body')[0]; |
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85 | bod.style.height = height; |
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86 | bod.style.overflow = overflow; |
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87 | |
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88 | htm = document.getElementsByTagName('html')[0]; |
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89 | htm.style.height = height; |
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90 | htm.style.overflow = overflow; |
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91 | }, |
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92 | |
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93 | // In IE, select elements hover on top of the lightbox |
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94 | hideSelects: function(visibility){ |
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95 | selects = document.getElementsByTagName('select'); |
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96 | for(i = 0; i < selects.length; i++) { |
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97 | selects[i].style.visibility = visibility; |
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98 | } |
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99 | }, |
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100 | |
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101 | // Taken from lightbox implementation found at http://www.huddletogether.com/projects/lightbox/ |
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102 | getScroll: function(){ |
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103 | if (self.pageYOffset) { |
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104 | this.yPos = self.pageYOffset; |
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105 | } else if (document.documentElement && document.documentElement.scrollTop){ |
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106 | this.yPos = document.documentElement.scrollTop; |
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107 | } else if (document.body) { |
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108 | this.yPos = document.body.scrollTop; |
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109 | } |
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110 | }, |
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111 | |
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112 | setScroll: function(x, y){ |
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113 | window.scrollTo(x, y); |
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114 | }, |
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115 | |
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116 | displayLightbox: function(display){ |
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117 | $('overlay').style.display = display; |
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118 | $('lightbox').style.display = display; |
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119 | if(display != 'none') this.processInfo(); |
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120 | }, |
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121 | |
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122 | // Begin Ajax request based off of the href of the clicked linked |
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123 | loadInfo: function() { |
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124 | var myAjax = new Ajax.Request( |
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125 | this.content, |
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126 | {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)} |
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127 | ); |
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128 | |
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129 | }, |
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130 | |
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131 | // Display Ajax response |
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132 | processInfo: function(response){ |
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133 | info = "<div id='lbContent'></div>"; |
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134 | new Insertion.Before($('lbLoadMessage'), info); |
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135 | |
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136 | if (typeof(this.content) == "function") |
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137 | { |
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138 | this.content(); |
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139 | } |
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140 | else |
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141 | { |
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142 | this.content; |
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143 | } |
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144 | |
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145 | $('lightbox').className = "done"; |
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146 | //this.actions(); |
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147 | }, |
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148 | |
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149 | // Search through new links within the lightbox, and attach click event |
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150 | /* |
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151 | actions: function(){ |
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152 | lbActions = document.getElementsByClassName('lbAction'); |
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153 | |
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154 | for(i = 0; i < lbActions.length; i++) { |
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155 | Event.observe(lbActions[i], 'click', this[lbActions[i].rel].bindAsEventListener(this), false); |
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156 | lbActions[i].onclick = function(){return false;}; |
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157 | } |
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158 | }, |
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159 | */ |
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160 | |
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161 | // Example of creating your own functionality once lightbox is initiated |
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162 | insert: function(e){ |
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163 | link = Event.element(e).parentNode; |
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164 | Element.remove($('lbContent')); |
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165 | |
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166 | var myAjax = new Ajax.Request( |
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167 | link.href, |
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168 | {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)} |
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169 | ); |
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170 | |
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171 | }, |
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172 | |
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173 | // Example of creating your own functionality once lightbox is initiated |
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174 | deactivate: function(){ |
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175 | Element.remove($('lbContent')); |
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176 | |
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177 | if (browser == "Internet Explorer"){ |
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178 | this.setScroll(0,this.yPos); |
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179 | this.prepareIE("auto", "auto"); |
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180 | this.hideSelects("visible"); |
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181 | } |
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182 | |
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183 | this.displayLightbox("none"); |
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184 | } |
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185 | }; |
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186 | |
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187 | /*-----------------------------------------------------------------------------------------------*/ |
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188 | |
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189 | // Onload, make all links that need to trigger a lightbox active |
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190 | function lb_initialize(){ |
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191 | if (!$('overlay')) |
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192 | addLightboxMarkup(); |
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193 | |
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194 | lbox = document.getElementsByClassName('lbOn'); |
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195 | |
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196 | for(i = 0; i < lbox.length; i++) { |
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197 | valid = new lightbox(lbox[i]); |
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198 | } |
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199 | } |
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200 | |
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201 | // Add in markup necessary to make this work. Basically two divs: |
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202 | // Overlay holds the shadow |
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203 | // Lightbox is the centered square that the content is put into. |
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204 | function addLightboxMarkup() { |
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205 | bod = document.getElementsByTagName('body')[0]; |
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206 | overlay = document.createElement('div'); |
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207 | overlay.id = 'overlay'; |
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208 | lb = document.createElement('div'); |
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209 | lb.id = 'lightbox'; |
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210 | lb.className = 'loading'; |
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211 | lb.innerHTML = '<div id="lbLoadMessage">' + |
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212 | '<p>Loading</p>' + |
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213 | '</div>'; |
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214 | |
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215 | bod.appendChild(overlay); |
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216 | bod.appendChild(lb); |
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217 | } |
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