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Rev | Author | Line No. | Line |
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7670 | bpr | 1 | /* |
2 | * Content-seperated javascript tree widget |
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8588 | obado | 3 | * Copyright (C) 2005 SilverStripe Limited |
4 | * Feel free to use this on your websites, but please leave this message in the fies |
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5 | * http://www.silverstripe.com/blog |
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7670 | bpr | 6 | */ |
7 | |||
8 | /* |
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9 | * Initialise all trees identified by <ul class="tree"> |
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10 | */ |
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11 | |||
12 | /* |
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13 | * Usefull function for popup window displaying |
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14 | */ |
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15 | function popup(mylink, windowname){ |
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16 | if (! window.focus)return true; |
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17 | var href; |
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18 | if (typeof(mylink) == 'string') |
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19 | href=mylink; |
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20 | else |
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21 | href=mylink.href; |
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22 | window.open(href, windowname, 'width=800,height=500,scrollbars=yes'); |
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23 | return false; |
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24 | } |
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25 | |||
26 | function autoInit_trees() { |
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27 | var candidates = document.getElementsByTagName('ul'); |
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28 | for(var i=0;i<candidates.length;i++) { |
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29 | if(candidates[i].className && candidates[i].className.indexOf('tree') != -1) { |
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30 | initTree(candidates[i]); |
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31 | candidates[i].className = candidates[i].className.replace(/ ?unformatted ?/, ' '); |
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32 | } |
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33 | } |
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34 | } |
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35 | |||
36 | /* |
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37 | * Initialise a tree node, converting all its LIs appropriately |
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38 | */ |
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39 | function initTree(el) { |
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40 | var i,j; |
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41 | var spanA, spanB, spanC; |
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42 | var startingPoint, stoppingPoint, childUL; |
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43 | |||
44 | // Find all LIs to process |
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45 | for(i=0;i<el.childNodes.length;i++) { |
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46 | if(el.childNodes[i].tagName && el.childNodes[i].tagName.toLowerCase() == 'li') { |
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47 | var li = el.childNodes[i]; |
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48 | |||
49 | // Create our extra spans |
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50 | spanA = document.createElement('span'); |
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51 | spanB = document.createElement('span'); |
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52 | spanC = document.createElement('span'); |
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53 | spanA.appendChild(spanB); |
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54 | spanB.appendChild(spanC); |
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55 | spanA.className = 'a ' + li.className.replace('closed','spanClosed'); |
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56 | spanA.onMouseOver = function() {} |
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57 | spanB.className = 'b'; |
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58 | spanB.onclick = treeToggle; |
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59 | spanC.className = 'c'; |
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60 | |||
61 | |||
62 | // Find the UL within the LI, if it exists |
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63 | stoppingPoint = li.childNodes.length; |
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64 | startingPoint = 0; |
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65 | childUL = null; |
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66 | for(j=0;j<li.childNodes.length;j++) { |
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67 | if(li.childNodes[j].tagName && li.childNodes[j].tagName.toLowerCase() == 'div') { |
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68 | startingPoint = j + 1; |
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69 | continue; |
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70 | } |
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71 | |||
72 | if(li.childNodes[j].tagName && li.childNodes[j].tagName.toLowerCase() == 'ul') { |
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73 | childUL = li.childNodes[j]; |
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74 | stoppingPoint = j; |
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75 | break; |
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76 | } |
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77 | } |
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78 | |||
79 | // Move all the nodes up until that point into spanC |
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80 | for(j=startingPoint;j<stoppingPoint;j++) { |
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81 | spanC.appendChild(li.childNodes[startingPoint]); |
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82 | } |
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83 | |||
84 | // Insert the outermost extra span into the tree |
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85 | if(li.childNodes.length > startingPoint) li.insertBefore(spanA, li.childNodes[startingPoint]); |
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86 | else li.appendChild(spanA); |
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87 | |||
88 | // Process the children |
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89 | if(childUL != null) { |
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90 | if(initTree(childUL)) { |
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91 | addClass(li, 'children', 'closed'); |
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92 | addClass(spanA, 'children', 'spanClosed'); |
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93 | } |
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94 | } |
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95 | } |
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96 | } |
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97 | |||
98 | if(li) { |
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99 | // li and spanA will still be set to the last item |
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100 | |||
101 | addClass(li, 'last', 'closed'); |
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102 | addClass(spanA, 'last', 'spanClosed'); |
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103 | return true; |
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104 | } else { |
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105 | return false; |
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106 | } |
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107 | |||
108 | } |
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109 | |||
110 | |||
111 | /* |
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112 | * +/- toggle the tree, where el is the <span class="b"> node |
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113 | * force, will force it to "open" or "close" |
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114 | */ |
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115 | function treeToggle(el, force) { |
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116 | el = this; |
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117 | while(el != null && (!el.tagName || el.tagName.toLowerCase() != "li")) el = el.parentNode; |
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118 | |||
119 | // Get UL within the LI |
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120 | var childSet = findChildWithTag(el, 'ul'); |
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121 | var topSpan = findChildWithTag(el, 'span'); |
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122 | |||
123 | if( force != null ){ |
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124 | |||
125 | if( force == "open"){ |
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126 | treeOpen( topSpan, el ) |
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127 | } |
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128 | else if( force == "close" ){ |
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129 | treeClose( topSpan, el ) |
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130 | } |
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131 | |||
132 | } |
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133 | |||
134 | else if( childSet != null) { |
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135 | // Is open, close it |
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136 | if(!el.className.match(/(^| )closed($| )/)) { |
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137 | treeClose( topSpan, el ) |
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138 | // Is closed, open it |
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139 | } else { |
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140 | treeOpen( topSpan, el ) |
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141 | } |
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142 | } |
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143 | } |
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144 | |||
145 | |||
8588 | obado | 146 | function treeOpen(a, b ){ |
7670 | bpr | 147 | removeClass(a,'spanClosed'); |
148 | removeClass(b,'closed'); |
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149 | } |
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8588 | obado | 150 | |
151 | /* |
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152 | * [Jquery] treeToggleAll : Open/close all tree inside "elem" |
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153 | * elem can be a css id (#ident) or a css class (.classname) |
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154 | * added by obado |
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155 | */ |
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156 | function treeToggleAll( elem ){ |
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157 | $(elem+" .children").toggleClass("closed"); |
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158 | } |
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7670 | bpr | 159 | |
160 | |||
8588 | obado | 161 | function treeClose(a, b ){ |
7670 | bpr | 162 | addClass(a,'spanClosed'); |
163 | addClass(b,'closed'); |
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164 | } |
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165 | |||
166 | /* |
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167 | * Find the a child of el of type tag |
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168 | */ |
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169 | function findChildWithTag(el, tag) { |
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170 | for(var i=0;i<el.childNodes.length;i++) { |
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171 | if(el.childNodes[i].tagName != null && el.childNodes[i].tagName.toLowerCase() == tag) return el.childNodes[i]; |
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172 | } |
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173 | return null; |
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174 | } |
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175 | |||
176 | /* |
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177 | * Functions to add and remove class names |
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178 | * Mac IE hates unnecessary spaces |
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179 | */ |
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180 | function addClass(el, cls, forceBefore) { |
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181 | if(forceBefore != null && el.className.match(new RegExp('(^| )' + forceBefore))) { |
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182 | el.className = el.className.replace(new RegExp("( |^)" + forceBefore), '$1' + cls + ' ' + forceBefore); |
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183 | |||
184 | } else if(!el.className.match(new RegExp('(^| )' + cls + '($| )'))) { |
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185 | el.className += ' ' + cls; |
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186 | el.className = el.className.replace(/(^ +)|( +$)/g, ''); |
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187 | } |
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188 | } |
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189 | function removeClass(el, cls) { |
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190 | var old = el.className; |
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191 | var newCls = ' ' + el.className + ' '; |
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192 | newCls = newCls.replace(new RegExp(' (' + cls + ' +)+','g'), ' '); |
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193 | el.className = newCls.replace(/(^ +)|( +$)/g, ''); |
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194 | } |
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195 | |||
196 | /* |
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197 | * Handlers for automated loading |
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198 | */ |
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199 | _LOADERS = Array(); |
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200 | |||
201 | function callAllLoaders() { |
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202 | var i, loaderFunc; |
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203 | for(i=0;i<_LOADERS.length;i++) { |
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204 | loaderFunc = _LOADERS[i]; |
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205 | if(loaderFunc != callAllLoaders) loaderFunc(); |
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206 | } |
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207 | } |
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208 | |||
209 | function appendLoader(loaderFunc) { |
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210 | if(window.onload && window.onload != callAllLoaders) |
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211 | _LOADERS[_LOADERS.length] = window.onload; |
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212 | |||
213 | window.onload = callAllLoaders; |
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214 | |||
215 | _LOADERS[_LOADERS.length] = loaderFunc; |
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216 | } |
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217 | |||
218 | appendLoader(autoInit_trees); |