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<?php |
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namespace WPEmerge\View; |
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use GuzzleHttp\Psr7; |
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use GuzzleHttp\Psr7\Response; |
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use WPEmerge\Exceptions\ViewException; |
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use WPEmerge\Facades\View; |
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/** |
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* Render a view file with php. |
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*/ |
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class PhpView implements ViewInterface { |
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use HasNameTrait, HasContextTrait; |
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/** |
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* Stack of rendered layout contents. |
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* |
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* @var array<string> |
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*/ |
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protected static $layout_content_stack = []; |
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/** |
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* Filepath to view. |
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* |
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* @var string |
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*/ |
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protected $filepath = ''; |
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/** |
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* Layout to use. |
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* |
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* @var ViewInterface|null |
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*/ |
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protected $layout = null; |
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/** |
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* Get the top-most layout content from the stack. |
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* |
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* @codeCoverageIgnore |
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* @return string |
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*/ |
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public static function getLayoutContent() { |
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$stack = static::$layout_content_stack; |
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if ( empty( $stack ) ) { |
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return ''; |
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} |
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return $stack[ count( $stack ) - 1 ]; |
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} |
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/** |
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* Get filepath. |
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* |
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* @return string |
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*/ |
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public function getFilepath() { |
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return $this->filepath; |
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} |
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/** |
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* Set filepath. |
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* |
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* @param string $filepath |
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* @return self $this |
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*/ |
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public function setFilepath( $filepath ) { |
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$this->filepath = $filepath; |
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return $this; |
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} |
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/** |
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* Get layout. |
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* |
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* @return ViewInterface|null |
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*/ |
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public function getLayout() { |
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return $this->layout; |
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} |
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/** |
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* Set layout. |
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* |
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* @param ViewInterface|null $layout |
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* @return self $this |
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*/ |
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public function setLayout( ViewInterface $layout ) { |
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$this->layout = $layout; |
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return $this; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function toString() { |
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if ( empty( $this->getName() ) ) { |
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throw new ViewException( 'View must have a name.' ); |
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} |
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if ( empty( $this->getFilepath() ) ) { |
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throw new ViewException( 'View must have a filepath.' ); |
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} |
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$html = (clone $this)->compose()->render(); |
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if ( $this->getLayout() !== null ) { |
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static::$layout_content_stack[] = $html; |
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$html = $this->getLayout()->toString(); |
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array_pop( static::$layout_content_stack ); |
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} |
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return $html; |
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} |
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/** |
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* Compose the context. |
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* |
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* @return self $this |
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*/ |
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protected function compose() { |
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$context = $this->getContext(); |
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$this->with( ['global' => View::getGlobals()] ); |
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View::compose( $this ); |
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$this->with( $context ); |
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return $this; |
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} |
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/** |
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* Render the view to a string. |
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* |
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* @return string |
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*/ |
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protected function render() { |
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$__context = $this->getContext(); |
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ob_start(); |
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extract( $__context, EXTR_OVERWRITE ); |
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include( $this->getFilepath() ); |
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return ob_get_clean(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function toResponse() { |
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return (new Response()) |
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->withHeader( 'Content-Type', 'text/html' ) |
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->withBody( Psr7\stream_for( $this->toString() ) ); |
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} |
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} |
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htmlburger /
wpemerge
