webmaster@0: <?php
webmaster@0: class Template {
webmaster@2:     private $xmlDocument;
webmaster@2:     private $xmlXPath;
webmaster@19:     private $stripAttributesInTemplateNS = false;
webmaster@0:     
webmaster@0:     const NS = 'http://defr.net/2007/template';
webmaster@0:     
webmaster@6:     function __construct($fileName, $shouldValidate = false) {
webmaster@2:         $this->xmlDocument = new DOMDocument();
webmaster@6:         $this->xmlDocument->validateOnParse = $shouldValidate;
webmaster@9:         $this->xmlDocument->preserveWhiteSpace = false;
webmaster@17:         $contents = file_get_contents($fileName, FILE_USE_INCLUDE_PATH);
webmaster@17:         $this->xmlDocument->loadXML($contents);
webmaster@15:         $this->xmlDocument->preserveWhiteSpace = false;
webmaster@0:         $this->xmlXPath = new DOMXPath($this->xmlDocument);
webmaster@8:         $this->xmlXPath->registerNamespace('_t', Template::NS);
webmaster@0:     }
webmaster@0:     
webmaster@3:     function apply($selector, $obj, DOMElement $root = null) {
webmaster@6:         if(!($root instanceof DOMElement))
webmaster@3:             $root = $this->xmlDocument->documentElement;
webmaster@3:         $rootSelector = $this->parseSelector($selector, $root);
webmaster@6:         if(is_array($obj))
webmaster@6:             $this->applyClone($rootSelector, $obj, $root);
webmaster@3:         else {
webmaster@0:             foreach($rootSelector->nodes as $node) {
webmaster@3:                 $content = $this->parseReplacement($obj); 
webmaster@15:                 if(isset($rootSelector->attribute))
webmaster@0:                     $node->setAttribute($rootSelector->attribute, $obj);
webmaster@15:                 else
webmaster@15:                     $this->setNodeContent($node, $content);
webmaster@0:             }
webmaster@0:         }
webmaster@0:     }
webmaster@6: 
webmaster@6:     function applyClone($rootSelector, $obj, $root) {
webmaster@6:         foreach($obj as $array) {
webmaster@6:             $nodeName = key($array);
webmaster@6: 	        foreach($rootSelector->nodes as $node) {
webmaster@6:                 $tmp = $this->getClonedNode($node, $nodeName);
webmaster@6:                 $futureNode = $tmp->clone;
webmaster@6:                 $futureNode = $node->insertBefore($futureNode, $tmp->orig);
webmaster@6:                 foreach($array as $sel => $test) {
webmaster@6:                     $locSelector = $this->parseSelector($sel, $node);
webmaster@7:                     if(isset($locSelector->attribute))
webmaster@6:                         $futureNode->setAttribute($locSelector->attribute, $test);
webmaster@6:                     else {
webmaster@6:                         $content = $this->parseReplacement($test);
webmaster@6:                         $node->insertBefore($content, $tmp->orig);
webmaster@15:                         $this->setNodeContent($futureNode, $content);
webmaster@6:                     }
webmaster@6:                 }
webmaster@6: 	        }
webmaster@6:         }
webmaster@6:     }
webmaster@0:     
webmaster@0:     function getClonedNode($node, $childNodeName) {
webmaster@3:         $candidates = $this->parseSelector($childNodeName, $node)->nodes;
webmaster@1:         foreach($candidates as $candidate) {
webmaster@3:             if($candidate->getAttributeNS(Template::NS, 'toClone') == 'true') {
webmaster@0:                 $tmp = array();
webmaster@1:                 $tmp['orig'] = $candidate;
webmaster@1:                 $cnode = $candidate->cloneNode(true);
webmaster@6:                 $cnode->removeAttributeNS(Template::NS, 'toClone');
webmaster@0:                 $tmp['clone'] = $cnode;
webmaster@0:                 return (object)$tmp;
webmaster@0:             }
webmaster@0:         }
webmaster@0:     }
webmaster@0:     
webmaster@3:     function parseSelector($selector, DOMElement $root) {
webmaster@0:         $obj = array();
webmaster@0:         $pos = strpos($selector, '@');
webmaster@0:         if($pos !== false) {
webmaster@0:             $obj['attribute'] = substr($selector,$pos +1);
webmaster@0:             $selector = substr($selector, 0, $pos);
webmaster@0:         }
webmaster@0:         if($selector[0] == '#') {
webmaster@8:             $obj['xpath'] = "//*[@_t:id='" . substr($selector, 1) . "']";
webmaster@0:             $obj['nodes'] = $this->xmlXPath->query($obj['xpath'], $root);
webmaster@0:         }
webmaster@0:         else {
webmaster@0:             $obj['nodeName'] = $selector;
webmaster@0:             $obj['nodes'] = $root->getElementsByTagName($selector);
webmaster@0:         }
webmaster@0:         return (object)$obj;
webmaster@0:     }
webmaster@0:     
webmaster@0:     function parseReplacement($obj) {
webmaster@0:         $retVal = NULL;
webmaster@0:         if(is_string($obj))
webmaster@0:             $retVal = $this->xmlDocument->createTextNode($obj);
webmaster@0:         else if($obj instanceof DOMDocument)
webmaster@16:             $retVal = $this->xmlDocument->importNode($obj->documentElement);
webmaster@16:         else if($obj instanceof DOMDocumentFragment)
webmaster@16:             $retVal = $obj;
webmaster@0:         else if($obj instanceof DOMNode)
webmaster@3:             $retVal = $obj->clone(true);
webmaster@11:         else if($obj instanceof Template) {
webmaster@11:             $node = $obj->xmlDocument->documentElement;
webmaster@11:             $retVal = $this->xmlDocument->importNode($node, true);
webmaster@11:         }
webmaster@0:         return $retVal;
webmaster@0:     }
webmaster@0:     
webmaster@0:     function setParams($array) {
webmaster@0:         foreach($array as $selector => $obj) {
webmaster@0:             $this->apply($selector, $obj);
webmaster@0:         }
webmaster@0:     }
webmaster@0:     
webmaster@0:     function replaceNode(DOMNode $node, DOMNode $content) {
webmaster@0:         $parent = $node->parentNode;
webmaster@0:         $parent->replaceChild($content, $node);
webmaster@0:     }
webmaster@0:     
webmaster@0:     function setNodeContent(DOMElement $node, DOMNode $content) {
webmaster@0:         // Suppress existing childs
webmaster@0:         foreach($node->childNodes as $child) {
webmaster@0:             $node->removeChild($child);
webmaster@0:         }
webmaster@0:         // Add the new child
webmaster@0:         $node->appendChild($content);
webmaster@0:     }
webmaster@0:     
webmaster@0:     function clean() {
webmaster@0:         // Suppression des noeuds à cloner
webmaster@8:         $nodes = $this->xmlXPath->query("//*[@_t:toClone]|//_t:*");
webmaster@0:         foreach($nodes as $node) {
webmaster@0:             if($node->parentNode) {
webmaster@15:                 $parent = $node->parentNode;
webmaster@15:                 if(!$node->hasAttributeNS(Template::NS, 'toClone')) {
webmaster@15:                     while($node->hasChildNodes())
webmaster@15:                         $parent->insertBefore($node->firstChild, $node);
webmaster@15:                 }
webmaster@15:                 $parent->removeChild($node);
webmaster@0:             }
webmaster@0:         }
webmaster@19: 
webmaster@19:     	// Suppression éventuelle des attributs de l'espace de nom Template::NS
webmaster@19:         if($this->stripAttributesInTemplateNS) {
webmaster@19:             $nodes = $this->xmlXPath->query("//*[@_t:*]");
webmaster@19: 	        foreach($nodes as $node) {
webmaster@19:                 foreach($node->attributes as $attr) {
webmaster@19:                     if($attr->namespaceURI == Template::NS)
webmaster@19: 		                $node->removeAttributeNode($attr);
webmaster@19: 	            }
webmaster@19: 	        }
webmaster@19:         }
webmaster@19:     }
webmaster@19: 
webmaster@19:     function shouldStripAttributesInTemplateNS($boolean) {
webmaster@19:         $this->stripAttributesInTemplateNS = $boolean;
webmaster@0:     }
webmaster@0:     
webmaster@0:     function __toString() {
webmaster@0:         $this->clean();
webmaster@9:         $this->xmlDocument->formatOutput = true;
webmaster@15:         $this->xmlDocument->normalizeDocument();
webmaster@0:         return $this->xmlDocument->saveXML();
webmaster@0:     }
webmaster@16: 
webmaster@16:     function getDocumentFragment() {
webmaster@16:         return $this->xmlDocument->createDocumentFragment();
webmaster@16:     }
webmaster@6: }