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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\View; |
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use Psr\EventDispatcher\EventDispatcherInterface; |
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use Psr\EventDispatcher\StoppableEventInterface; |
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use Yiisoft\View\Event\AfterRenderEventInterface; |
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use Yiisoft\View\Event\View\AfterRender; |
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use Yiisoft\View\Event\View\BeforeRender; |
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use Yiisoft\View\Event\View\PageBegin; |
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use Yiisoft\View\Event\View\PageEnd; |
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use Yiisoft\View\State\ViewState; |
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use function ob_end_flush; |
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use function ob_implicit_flush; |
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use function ob_start; |
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/** |
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* View represents an instance of a view for use in an any environment. |
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* |
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* View provides a set of methods (e.g. {@see View::render()}) for rendering purpose. |
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*/ |
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final class View implements ViewInterface |
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{ |
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use ViewTrait; |
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private ViewState $state; |
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/** |
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* @param string $basePath The full path to the base directory of views. |
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* @param EventDispatcherInterface $eventDispatcher The event dispatcher instance. |
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*/ |
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public function __construct(string $basePath, EventDispatcherInterface $eventDispatcher) |
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{ |
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$this->basePath = $basePath; |
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$this->state = new ViewState(); |
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$this->eventDispatcher = $eventDispatcher; |
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$this->setPlaceholderSalt(__DIR__); |
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} |
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/** |
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* Returns a new instance with cleared state (blocks, parameters, etc.) |
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* |
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* @return static |
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*/ |
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public function withClearedState(): self |
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{ |
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$new = clone $this; |
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$new->state = new ViewState(); |
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return $new; |
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} |
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/** |
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* Marks the beginning of a view. |
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*/ |
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public function beginPage(): void |
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{ |
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ob_start(); |
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/** @psalm-suppress InvalidArgument */ |
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PHP_VERSION_ID >= 80000 ? ob_implicit_flush(false) : ob_implicit_flush(0); |
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$this->eventDispatcher->dispatch(new PageBegin($this)); |
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} |
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/** |
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* Marks the ending of a view. |
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*/ |
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public function endPage(): void |
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{ |
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$this->eventDispatcher->dispatch(new PageEnd($this)); |
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ob_end_flush(); |
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} |
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protected function createBeforeRenderEvent(string $viewFile, array $parameters): StoppableEventInterface |
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{ |
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return new BeforeRender($this, $viewFile, $parameters); |
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} |
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protected function createAfterRenderEvent( |
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string $viewFile, |
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array $parameters, |
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string $result |
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): AfterRenderEventInterface { |
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return new AfterRender($this, $viewFile, $parameters, $result); |
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} |
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} |
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yiisoft /
view
