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<?php |
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/** |
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* This file is part of the Madapaja.TwigModule package. |
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* |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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namespace Madapaja\TwigModule; |
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use BEAR\Resource\Code; |
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use BEAR\Resource\RenderInterface; |
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use BEAR\Resource\ResourceObject; |
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use Ray\Aop\WeavedInterface; |
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use Twig_Environment; |
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class TwigRenderer implements RenderInterface |
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{ |
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/** |
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* File extension |
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* |
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* @var string |
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*/ |
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const EXT = '.html.twig'; |
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/** |
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* @var Twig_Environment |
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*/ |
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public $twig; |
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/** |
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* @var TemplateFinderInterface |
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*/ |
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private $templateFinder; |
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public function __construct(Twig_Environment $twig, TemplateFinderInterface $templateFinder = null) |
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{ |
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$this->twig = $twig; |
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$this->templateFinder = $templateFinder ?: new TemplateFinder; |
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} |
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public function render(ResourceObject $ro) |
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{ |
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$this->beforeRender($ro); |
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$ro->view = $this->isNoContent($ro) ? '' : $this->renderView($ro); |
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return $ro->view; |
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} |
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private function beforeRender(ResourceObject $ro) |
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{ |
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if (! isset($ro->headers['content-type'])) { |
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$ro->headers['content-type'] = 'text/html; charset=utf-8'; |
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} |
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} |
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private function renderView(ResourceObject $ro) |
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{ |
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$template = $this->load($ro); |
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return $template ? $template->render($this->buildBody($ro)) : ''; |
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} |
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private function load(ResourceObject $ro) |
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{ |
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try { |
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return $this->loadTemplate($ro); |
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} catch (\Twig_Error_Loader $e) { |
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if ($ro->code !== 200) { |
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return false; |
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} |
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} |
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throw new Exception\TemplateNotFound($e->getMessage(), 500, $e); |
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} |
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private function isNoContent(ResourceObject $ro) |
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{ |
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return $ro->code === Code::NO_CONTENT || $ro->view === ''; |
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} |
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/** |
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* @return \Twig_TemplateWrapper |
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*/ |
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private function loadTemplate(ResourceObject $ro) |
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{ |
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$loader = $this->twig->getLoader(); |
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if ($loader instanceof \Twig_Loader_Filesystem) { |
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list($file, $dir) = $this->getTemplate($ro, $loader->getPaths()); |
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if ($dir) { |
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// if the file not in paths, register the directory |
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$loader->prependPath($dir); |
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} |
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return $this->twig->load($file); |
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} |
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return $this->twig->load($this->getReflection($ro)->name . self::EXT); |
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} |
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/** |
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* @return \ReflectionClass |
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*/ |
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private function getReflection(ResourceObject $ro) |
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{ |
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if ($ro instanceof WeavedInterface) { |
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return (new \ReflectionClass($ro))->getParentClass(); |
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} |
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return new \ReflectionClass($ro); |
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} |
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/** |
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* return template file full path |
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* |
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* @return string |
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*/ |
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private function getTemplatePath(ResourceObject $ro) |
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{ |
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$file = $this->getReflection($ro)->getFileName(); |
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return $this->templateFinder->__invoke($file); |
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} |
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/** |
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* return template path and directory |
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* |
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* @return array |
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*/ |
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private function getTemplate(ResourceObject $ro, array $paths = []) |
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{ |
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$file = $this->getTemplatePath($ro); |
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foreach ($paths as $path) { |
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if (strpos($file, $path . '/') === 0) { |
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return [substr($file, strlen($path . '/')), null]; |
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} |
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} |
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return [basename($file), dirname($file)]; |
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} |
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private function buildBody(ResourceObject $ro) |
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{ |
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$body = is_array($ro->body) ? $ro->body : []; |
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$body += ['_code' => $ro->code, '_headers' => $ro->headers]; |
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return $body; |
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} |
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} |
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madapaja /
Madapaja.TwigModule
