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<?php |
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/** |
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* OpenStation App Framework — view capture. |
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* |
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* A view is a callable that paints markup for a state: it may echo |
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* (the natural thing inside `?> … <?php` blocks), return a string, or |
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* both. `View::capture()` turns either into the HTML string the |
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* runtime ships. |
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* |
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* @package OpenStation |
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*/ |
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|
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namespace OpenStation\App; |
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|
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// Direct access, unless a standalone host is booting on bare PHP. |
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if ( ! defined( 'ABSPATH' ) ) { |
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defined( 'OPENSTATION_STANDALONE' ) || exit; |
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} |
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|
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/** |
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* Turns a view callable into HTML. |
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*/ |
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final class View { |
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|
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/** |
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* Run a view callable and collect everything it painted. |
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* |
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* @param callable $view `function ( State $state, Os $os )`. |
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* @param State $state Current state. |
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* @param Os $os Host handle. |
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* @return string HTML. |
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* @throws \Throwable Whatever the view threw, after the output buffer is discarded. |
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*/ |
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public static function capture( callable $view, State $state, Os $os ) { |
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ob_start(); |
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try { |
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$returned = $view( $state, $os ); |
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} catch ( \Throwable $e ) { |
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ob_end_clean(); |
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throw $e; |
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} |
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$echoed = (string) ob_get_clean(); |
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return $echoed . ( is_string( $returned ) ? $returned : '' ); |
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} |
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} |
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|
