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<?php |
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/** |
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* @package s9e\TextFormatter |
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* @copyright Copyright (c) 2010-2017 The s9e Authors |
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License |
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*/ |
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namespace s9e\TextFormatter\Configurator\TemplateNormalizations; |
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use DOMAttr; |
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use DOMElement; |
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use DOMXPath; |
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use s9e\TextFormatter\Configurator\Helpers\AVTHelper; |
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use s9e\TextFormatter\Configurator\TemplateNormalization; |
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class UninlineAttributes extends TemplateNormalization |
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{ |
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/** |
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* Uninline element attributes |
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* |
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* Will replace |
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* <a href="{@url}">...</a> |
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* with |
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* <a><xsl:attribute name="href"><xsl:value-of select="@url"/></xsl:attribute>...</a> |
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* |
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* @param DOMElement $template <xsl:template/> node |
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* @return void |
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*/ |
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public function normalize(DOMElement $template) |
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{ |
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$xpath = new DOMXPath($template->ownerDocument); |
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$query = '//*[namespace-uri() != "' . self::XMLNS_XSL . '"]'; |
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foreach ($xpath->query($query) as $element) |
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{ |
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$this->normalizeElement($element); |
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} |
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} |
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/** |
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* Uninline an element's attributes |
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* |
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* @param DOMElement $element |
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* @return void |
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*/ |
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protected function normalizeElement(DOMElement $element) |
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{ |
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$firstChild = $element->firstChild; |
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while ($element->attributes->length > 0) |
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{ |
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$attribute = $element->attributes->item(0); |
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$element->insertBefore($this->uninlineAttribute($attribute), $firstChild); |
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} |
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} |
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/** |
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* Remove an attribute from its parent element and return its content as an xsl:attribute |
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* |
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* @param DOMAttr $attribute Attribute node |
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* @return DOMElement xsl:attribute element |
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*/ |
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protected function uninlineAttribute(DOMAttr $attribute) |
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{ |
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$ownerDocument = $attribute->ownerDocument; |
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$xslAttribute = $ownerDocument->createElementNS(self::XMLNS_XSL, 'xsl:attribute'); |
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$xslAttribute->setAttribute('name', $attribute->nodeName); |
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// Build the content of the xsl:attribute element |
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foreach (AVTHelper::parse($attribute->value) as list($type, $content)) |
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{ |
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if ($type === 'expression') |
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{ |
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$childNode = $ownerDocument->createElementNS(self::XMLNS_XSL, 'xsl:value-of'); |
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$childNode->setAttribute('select', $content); |
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} |
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else |
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{ |
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$childNode = $ownerDocument->createElementNS(self::XMLNS_XSL, 'xsl:text'); |
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$childNode->appendChild($ownerDocument->createTextNode($content)); |
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} |
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$xslAttribute->appendChild($childNode); |
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} |
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// Remove the attribute from its parent element |
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$attribute->parentNode->removeAttributeNode($attribute); |
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return $xslAttribute; |
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} |
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} |
s9e /
TextFormatter
