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1 <?php |
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2 class Template { |
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3 private $xmlDocument; |
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4 private $xmlXPath; |
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5 |
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6 const NS = 'http://defr.net/2007/template'; |
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7 |
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8 function __construct($fileName, $shouldValidate = false) { |
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9 $this->xmlDocument = new DOMDocument(); |
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10 $this->xmlDocument->validateOnParse = $shouldValidate; |
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11 $this->xmlDocument->preserveWhiteSpace = false; |
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12 $this->xmlDocument->loadXML(file_get_contents($fileName)); |
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13 $this->xmlDocument->preserveWhiteSpace = false; |
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14 $this->xmlXPath = new DOMXPath($this->xmlDocument); |
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15 $this->xmlXPath->registerNamespace('_t', Template::NS); |
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16 } |
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17 |
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18 function apply($selector, $obj, DOMElement $root = null) { |
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19 if(!($root instanceof DOMElement)) |
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20 $root = $this->xmlDocument->documentElement; |
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21 $rootSelector = $this->parseSelector($selector, $root); |
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22 if(is_array($obj)) |
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23 $this->applyClone($rootSelector, $obj, $root); |
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24 else { |
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25 foreach($rootSelector->nodes as $node) { |
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26 $content = $this->parseReplacement($obj); |
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27 if(isset($rootSelector->attribute)) |
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28 $node->setAttribute($rootSelector->attribute, $obj); |
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29 else |
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30 $this->setNodeContent($node, $content); |
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31 } |
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32 } |
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33 } |
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34 |
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35 function applyClone($rootSelector, $obj, $root) { |
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36 foreach($obj as $array) { |
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37 $nodeName = key($array); |
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38 foreach($rootSelector->nodes as $node) { |
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39 $tmp = $this->getClonedNode($node, $nodeName); |
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40 $futureNode = $tmp->clone; |
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41 $futureNode = $node->insertBefore($futureNode, $tmp->orig); |
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42 foreach($array as $sel => $test) { |
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43 $locSelector = $this->parseSelector($sel, $node); |
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44 if(isset($locSelector->attribute)) |
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45 $futureNode->setAttribute($locSelector->attribute, $test); |
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46 else { |
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47 $content = $this->parseReplacement($test); |
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48 $node->insertBefore($content, $tmp->orig); |
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49 $this->setNodeContent($futureNode, $content); |
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50 } |
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51 } |
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52 } |
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53 } |
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54 } |
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55 |
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56 function getClonedNode($node, $childNodeName) { |
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57 $candidates = $this->parseSelector($childNodeName, $node)->nodes; |
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58 foreach($candidates as $candidate) { |
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59 if($candidate->getAttributeNS(Template::NS, 'toClone') == 'true') { |
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60 $tmp = array(); |
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61 $tmp['orig'] = $candidate; |
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62 $cnode = $candidate->cloneNode(true); |
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63 $cnode->removeAttributeNS(Template::NS, 'toClone'); |
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64 $tmp['clone'] = $cnode; |
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65 return (object)$tmp; |
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66 } |
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67 } |
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68 } |
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69 |
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70 function parseSelector($selector, DOMElement $root) { |
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71 $obj = array(); |
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72 $pos = strpos($selector, '@'); |
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73 if($pos !== false) { |
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74 $obj['attribute'] = substr($selector,$pos +1); |
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75 $selector = substr($selector, 0, $pos); |
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76 } |
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77 if($selector[0] == '#') { |
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78 $obj['xpath'] = "//*[@_t:id='" . substr($selector, 1) . "']"; |
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79 $obj['nodes'] = $this->xmlXPath->query($obj['xpath'], $root); |
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80 } |
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81 else { |
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82 $obj['nodeName'] = $selector; |
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83 $obj['nodes'] = $root->getElementsByTagName($selector); |
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84 } |
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85 return (object)$obj; |
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86 } |
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87 |
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88 function parseReplacement($obj) { |
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89 $retVal = NULL; |
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90 if(is_string($obj)) |
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91 $retVal = $this->xmlDocument->createTextNode($obj); |
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92 else if($obj instanceof DOMDocument) |
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93 $retVal = $this->xmlDocument->importNode($obj->documentElement); |
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94 else if($obj instanceof DOMDocumentFragment) |
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95 $retVal = $obj; |
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96 else if($obj instanceof DOMNode) |
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97 $retVal = $obj->clone(true); |
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98 else if($obj instanceof Template) { |
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99 $node = $obj->xmlDocument->documentElement; |
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100 $retVal = $this->xmlDocument->importNode($node, true); |
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101 } |
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102 return $retVal; |
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103 } |
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104 |
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105 function setParams($array) { |
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106 foreach($array as $selector => $obj) { |
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107 $this->apply($selector, $obj); |
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108 } |
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109 } |
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110 |
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111 function replaceNode(DOMNode $node, DOMNode $content) { |
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112 $parent = $node->parentNode; |
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113 $parent->replaceChild($content, $node); |
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114 } |
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115 |
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116 function setNodeContent(DOMElement $node, DOMNode $content) { |
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117 // Suppress existing childs |
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118 foreach($node->childNodes as $child) { |
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119 $node->removeChild($child); |
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120 } |
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121 // Add the new child |
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122 $node->appendChild($content); |
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123 } |
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124 |
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125 function clean() { |
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126 // Suppression des noeuds à cloner |
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127 $nodes = $this->xmlXPath->query("//*[@_t:toClone]|//_t:*"); |
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128 foreach($nodes as $node) { |
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129 if($node->parentNode) { |
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130 $parent = $node->parentNode; |
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131 if(!$node->hasAttributeNS(Template::NS, 'toClone')) { |
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132 while($node->hasChildNodes()) |
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133 $parent->insertBefore($node->firstChild, $node); |
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134 } |
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135 $parent->removeChild($node); |
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136 } |
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137 } |
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138 } |
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139 |
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140 function __toString() { |
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141 $this->clean(); |
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142 $this->xmlDocument->formatOutput = true; |
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143 $this->xmlDocument->normalizeDocument(); |
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144 return $this->xmlDocument->saveXML(); |
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145 } |
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146 |
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147 function getDocumentFragment() { |
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148 return $this->xmlDocument->createDocumentFragment(); |
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149 } |
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150 } |