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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Form\Field\Base; |
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use InvalidArgumentException; |
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use Yiisoft\Html\Html; |
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use Yiisoft\Html\Tag\CustomTag; |
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use Yiisoft\Widget\Widget; |
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abstract class BaseField extends Widget |
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{ |
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/** |
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* @psalm-var non-empty-string |
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*/ |
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protected string $containerTag = 'div'; |
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protected array $containerTagAttributes = []; |
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protected bool $useContainer = true; |
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private bool $isStartedByBegin = false; |
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final public function containerTag(string $tag): static |
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{ |
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if ($tag === '') { |
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throw new InvalidArgumentException('Tag name cannot be empty.'); |
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} |
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$new = clone $this; |
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$new->containerTag = $tag; |
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return $new; |
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} |
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final public function containerTagAttributes(array $attributes): static |
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{ |
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$new = clone $this; |
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$new->containerTagAttributes = $attributes; |
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return $new; |
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} |
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final public function useContainer(bool $use): static |
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{ |
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$new = clone $this; |
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$new->useContainer = $use; |
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return $new; |
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} |
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final public function begin(): ?string |
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{ |
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parent::begin(); |
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$this->isStartedByBegin = true; |
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$this->beforeRender(); |
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$content = $this->generateBeginContent(); |
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return $this->renderOpenContainerAndContent($content) . "\n"; |
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} |
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final protected function run(): string |
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{ |
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if ($this->isStartedByBegin) { |
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$this->isStartedByBegin = false; |
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return $this->renderEnd(); |
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} |
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$this->beforeRender(); |
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$content = $this->generateContent(); |
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if ($content === null) { |
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return ''; |
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} |
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$result = $this->renderOpenContainerAndContent($content); |
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if ($this->useContainer) { |
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$result .= "\n" . Html::closeTag($this->containerTag); |
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} |
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return $result; |
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} |
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protected function beforeRender(): void |
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{ |
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} |
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abstract protected function generateContent(): ?string; |
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protected function generateBeginContent(): string |
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{ |
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return ''; |
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} |
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protected function generateEndContent(): string |
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{ |
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return ''; |
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} |
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protected function prepareContainerTagAttributes(array &$attributes): void |
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{ |
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} |
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private function renderEnd(): string |
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{ |
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$content = $this->generateEndContent(); |
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if (!$this->useContainer) { |
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return $content; |
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} |
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$containerTag = CustomTag::name($this->containerTag); |
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return |
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"\n" |
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. ($content !== '' ? $content . "\n" : '') |
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. $containerTag->close(); |
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} |
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private function renderOpenContainerAndContent(string $content): string |
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{ |
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if (!$this->useContainer) { |
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return $content; |
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} |
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$containerTag = CustomTag::name($this->containerTag); |
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$attributes = $this->containerTagAttributes; |
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$this->prepareContainerTagAttributes($attributes); |
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if ($attributes !== []) { |
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$containerTag = $containerTag->attributes($attributes); |
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} |
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return $containerTag->open() |
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. ($content === '' ? '' : ("\n" . $content)); |
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} |
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} |
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yiisoft /
form
