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<?php |
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namespace FluidXml; |
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/** |
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* @method FluidXml namespace(...$arguments) |
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*/ |
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class FluidXml implements FluidInterface |
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{ |
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use FluidAliasesTrait, |
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FluidSaveTrait, |
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NewableTrait, |
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ReservedCallTrait, // For compatibility with PHP 5.6. |
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ReservedCallStaticTrait; // For compatibility with PHP 5.6. |
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const ROOT_NODE = 'doc'; |
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private $defaults = [ 'root' => self::ROOT_NODE, |
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'version' => '1.0', |
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'encoding' => 'UTF-8', |
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'stylesheet' => null ]; |
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private $document; |
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private $handler; |
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private $context; |
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private $contextEl; |
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public static function load($document) |
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{ |
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$file = $document; |
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$document = \file_get_contents($file); |
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// file_get_contents() returns false in case of error. |
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if (! $document) { |
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throw new \Exception("File '$file' not accessible."); |
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} |
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return (new FluidXml(null))->addChild($document); |
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} |
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public function __construct(...$arguments) |
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{ |
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// First, we parse the arguments detecting the options provided. |
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// This options are needed to build the DOM, add the stylesheet |
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// and to create the document root/structure. |
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$options = $this->mergeOptions($arguments); |
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// Having the options set, we can build the FluidDocument model |
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// which incapsulates the DOM and the corresponding XPath instance. |
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$document = new FluidDocument(); |
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$document->dom = $this->newDom($options); |
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$document->xpath = new \DOMXPath($document->dom); |
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// After the FluidDocument model creation, we can proceed to build |
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// the FluidInsertionHandler which requires the model to perform |
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// its logics. |
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$handler = new FluidInsertionHandler($document); |
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// Ok, it's time to let them beeing visible along the instance. |
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$this->document = $document; |
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$this->handler = $handler; |
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// Now, we can further populate the DOM with any stylesheet or child. |
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$this->initStylesheet($options) |
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->initRoot($options); |
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} |
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protected function mergeOptions(&$arguments) |
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{ |
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$options = $this->defaults; |
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if (\count($arguments) > 0) { |
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// The root option can be specified as first argument |
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// because it is the most common. |
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$options['root'] = $arguments[0]; |
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} |
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if (\count($arguments) > 1) { |
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// Custom options can be specified only as second argument, |
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// to avoid confusion with array to XML construction style. |
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$options = \array_merge($options, $arguments[1]); |
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} |
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return $options; |
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} |
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private function newDom(&$options) |
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{ |
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$dom = new \DOMDocument($options['version'], $options['encoding']); |
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$dom->formatOutput = true; |
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$dom->preserveWhiteSpace = false; |
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return $dom; |
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} |
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private function initStylesheet(&$options) |
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{ |
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if (! empty($options['stylesheet'])) { |
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$attrs = 'type="text/xsl" ' |
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. "encoding=\"{$options['encoding']}\" " |
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. 'indent="yes" ' |
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. "href=\"{$options['stylesheet']}\""; |
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$stylesheet = new \DOMProcessingInstruction('xml-stylesheet', $attrs); |
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$this->addChild($stylesheet); |
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// Algorithm 2: |
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// Used in case the order of the stylesheet and root creation is reversed. |
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// $this->document->dom->insertBefore($stylesheet, $this->document->dom->documentElement); |
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} |
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return $this; |
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} |
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private function initRoot(&$options) |
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{ |
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if (! empty($options['root'])) { |
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$this->appendSibling($options['root']); |
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} |
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return $this; |
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} |
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public function length() |
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{ |
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return \count($this->array()); |
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} |
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public function dom() |
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{ |
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return $this->document->dom; |
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} |
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// This method should be called 'array', |
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// but for compatibility with PHP 5.6 |
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// it is shadowed by the __call() method. |
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public function array_() |
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{ |
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$el = $this->document->dom->documentElement; |
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if ($el === null) { |
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$el = $this->document->dom; |
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} |
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return [ $el ]; |
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} |
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public function __toString() |
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{ |
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return $this->xml(); |
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} |
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public function xml($strip = false) |
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{ |
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if ($strip) { |
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return FluidHelper::domdocumentToStringWithoutHeaders($this->document->dom); |
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} |
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return $this->document->dom->saveXML(); |
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} |
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public function html($strip = false) |
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{ |
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$header = "<!DOCTYPE html>\n"; |
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if ($strip) { |
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$header = ''; |
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} |
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$html = FluidHelper::domdocumentToStringWithoutHeaders($this->document->dom, true); |
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return "{$header}{$html}"; |
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} |
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public function namespaces() |
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{ |
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return $this->document->namespaces; |
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} |
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// This method should be called 'namespace', |
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// but for compatibility with PHP 5.6 |
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// it is shadowed by the __call() method. |
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protected function namespace_(...$arguments) |
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{ |
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$namespaces = []; |
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if (\is_string($arguments[0])) { |
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$args = [ $arguments[0], $arguments[1] ]; |
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if (isset($arguments[2])) { |
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$args[] = $arguments[2]; |
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} |
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$namespaces[] = new FluidNamespace(...$args); |
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} elseif (\is_array($arguments[0])) { |
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$namespaces = $arguments[0]; |
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} else { |
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$namespaces = $arguments; |
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} |
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foreach ($namespaces as $n) { |
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$this->document->namespaces[$n->id()] = $n; |
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$this->document->xpath->registerNamespace($n->id(), $n->uri()); |
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} |
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return $this; |
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} |
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public function query(...$query) { return $this->context()->query(...$query); } |
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public function times($times, callable $fn = null) { return $this->context()->times($times, $fn); } |
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public function each(callable $fn) { return $this->context()->each($fn); } |
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public function filter(callable $fn) { return $this->context()->filter($fn); } |
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public function setAttribute($name, $value = null) { $this->context()->setAttribute($name, $value); return $this; } |
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public function setText($text) { $this->context()->setText($text); return $this; } |
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public function addText($text) { $this->context()->addText($text); return $this; } |
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public function setCdata($text) { $this->context()->setCdata($text); return $this; } |
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public function addCdata($text) { $this->context()->addCdata($text); return $this; } |
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public function setComment($text) { $this->context()->setComment($text); return $this; } |
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public function addComment($text) { $this->context()->addComment($text); return $this; } |
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public function remove(...$query) { $this->context()->remove(...$query); return $this; } |
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public function addChild($child, ...$optionals) |
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{ |
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return $this->chooseContext(function($cx) use ($child, &$optionals) { |
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return $cx->addChild($child, ...$optionals); |
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}); |
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} |
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public function prependSibling($sibling, ...$optionals) |
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{ |
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return $this->chooseContext(function($cx) use ($sibling, &$optionals) { |
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return $cx->prependSibling($sibling, ...$optionals); |
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}); |
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} |
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public function appendSibling($sibling, ...$optionals) |
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{ |
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return $this->chooseContext(function($cx) use ($sibling, &$optionals) { |
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return $cx->appendSibling($sibling, ...$optionals); |
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}); |
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} |
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protected function context() |
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{ |
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$el = $this->document->dom->documentElement; |
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if ($el === null) { |
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// Whether there is not a root node |
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// the DOMDocument is promoted as root node. |
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$el = $this->document->dom; |
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} |
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if ($this->context === null || $el !== $this->contextEl) { |
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// The user can prepend a root node to the current root node. |
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// In this case we have to update the context with the new first root node. |
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$this->context = new FluidContext($this->document, $this->handler, $el); |
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$this->contextEl = $el; |
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} |
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return $this->context; |
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} |
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protected function chooseContext(\Closure $fn) |
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{ |
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// If the user has requested ['root' => null] at construction time |
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// 'context()' promotes DOMDocument as root node. |
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$context = $this->context(); |
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$new_context = $fn($context); |
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if ($context !== $new_context) { |
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// If the two contextes are diffent, the user has requested |
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// a switch of the context and we have to return it. |
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return $new_context; |
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} |
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return $this; |
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} |
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} |
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This check marks calls to methods that do not seem to exist on an object.
This is most likely the result of a method being renamed without all references to it being renamed likewise.