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<?php |
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declare(strict_types=1); |
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namespace Conia\Boiler; |
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use Conia\Boiler\Exception\LookupException; |
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use Conia\Boiler\Exception\RuntimeException; |
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use ErrorException; |
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use Throwable; |
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/** @psalm-api */ |
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class Template |
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{ |
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use RegistersMethod; |
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public readonly Engine $engine; |
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public readonly Sections $sections; |
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protected ?LayoutValue $layout = null; |
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/** @psalm-suppress PropertyNotSetInConstructor */ |
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protected CustomMethods $customMethods; |
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/** |
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* @psalm-param non-empty-string $path |
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*/ |
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public function __construct( |
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public readonly string $path, |
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?Sections $sections = null, |
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?Engine $engine = null, |
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) { |
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$this->sections = $sections ?: new Sections(); |
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$this->customMethods = new CustomMethods(); |
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if ($engine === null) { |
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$dir = dirname($path); |
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if (empty($dir) || empty($path)) { |
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throw new LookupException('No directory given or empty path'); |
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} |
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$this->engine = new Engine($dir); |
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if (!is_file($path)) { |
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throw new LookupException('Template not found: ' . $path); |
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} |
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} else { |
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$this->engine = $engine; |
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} |
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} |
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/** |
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* @psalm-param list<class-string> $whitelist |
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*/ |
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public function render(array $context = [], array $whitelist = [], bool $autoescape = true): string |
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{ |
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$content = $this->getContent($context, $whitelist, $autoescape); |
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if ($this instanceof Layout) { |
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return $content->content; |
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} |
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return $this->renderLayouts( |
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$this, |
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$content->templateContext, |
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$whitelist, |
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$content->content, |
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$autoescape |
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); |
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} |
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/** |
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* Defines a layout template that will be wrapped around this instance. |
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* |
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* Typically it’s placed at the top of the file. |
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*/ |
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public function setLayout(LayoutValue $layout): void |
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{ |
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if ($this->layout === null) { |
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$this->layout = $layout; |
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return; |
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} |
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throw new RuntimeException('Template error: layout already set'); |
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} |
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public function layout(): ?LayoutValue |
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{ |
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return $this->layout; |
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} |
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public function setCustomMethods(CustomMethods $customMethods): void |
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{ |
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$this->customMethods = $customMethods; |
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} |
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/** @psalm-param list<class-string> $whitelist */ |
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protected function templateContext(array $context, array $whitelist, bool $autoescape): TemplateContext |
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{ |
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return new TemplateContext($this, $context, $whitelist, $autoescape); |
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} |
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/** @psalm-param list<class-string> $whitelist */ |
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protected function getContent(array $context, array $whitelist, bool $autoescape): Content |
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{ |
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$templateContext = $this->templateContext($context, $whitelist, $autoescape); |
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$load = function (string $templatePath, array $context = []): void { |
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// Hide $templatePath. Could be overwritten if $context['templatePath'] exists. |
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$____template_path____ = $templatePath; |
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extract($context); |
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/** @psalm-suppress UnresolvableInclude */ |
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include $____template_path____; |
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}; |
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/** @var callable */ |
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$load = $load->bindTo($templateContext); |
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$level = ob_get_level(); |
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try { |
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ob_start(); |
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$load( |
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$this->path, |
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$autoescape ? |
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$templateContext->context() : |
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$context |
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); |
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$content = ob_get_clean(); |
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return new Content($content, $templateContext); |
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} catch (ErrorException $e) { |
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throw new RuntimeException('Render error: ' . $e->getMessage()); |
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} catch (Throwable $e) { |
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throw $e; |
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} finally { |
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while (ob_get_level() > $level) { |
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ob_end_clean(); |
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} |
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} |
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} |
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/** @psalm-param list<class-string> $whitelist */ |
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protected function renderLayouts( |
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Template $template, |
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TemplateContext $context, |
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array $whitelist, |
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string $content, |
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bool $autoescape |
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): string { |
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while ($layout = $template->layout()) { |
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$file = $template->engine->getFile($layout->layout); |
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$template = new Layout( |
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$file, |
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$content, |
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$this->sections, |
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$template->engine, |
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); |
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$layoutContext = $layout->context |
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? $context->context($layout->context) |
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: $context->context(); |
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$content = $template->render($layoutContext, $whitelist, $autoescape); |
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} |
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return $content; |
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} |
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} |
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coniadev /
boiler
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