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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Form\Widget; |
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use InvalidArgumentException; |
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use Stringable; |
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use Yiisoft\Form\Widget\Attribute\ChoiceAttributes; |
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use Yiisoft\Html\Tag\Input\Radio as RadioTag; |
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/** |
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* The input element with a type attribute whose value is "radio" represents a selection of one item from a list of |
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* items (a radio button). |
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* |
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* @link https://www.w3.org/TR/2012/WD-html-markup-20120329/input.radio.html |
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*/ |
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final class Radio extends ChoiceAttributes |
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{ |
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private bool $checked = false; |
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private bool $enclosedByLabel = true; |
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private ?string $label = ''; |
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private array $labelAttributes = []; |
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private ?string $uncheckValue = null; |
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/** |
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* Check the radio button. |
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* |
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* @param bool $value Whether the radio button is checked. |
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* |
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* @return static |
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*/ |
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public function checked(bool $value = true): self |
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{ |
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$new = clone $this; |
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$new->checked = $value; |
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return $new; |
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} |
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/** |
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* If the widget should be enclosed by label. |
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* |
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* @param bool $value If the widget should be en closed by label. |
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* |
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* @return static |
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*/ |
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public function enclosedByLabel(bool $value): self |
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{ |
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$new = clone $this; |
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$new->enclosedByLabel = $value; |
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return $new; |
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} |
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/** |
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* Label displayed next to the radio. |
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* |
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* It will NOT be HTML-encoded, therefore you can pass in HTML code such as an image tag. If this is coming from |
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* end users, you should {@see encode()} it to prevent XSS attacks. |
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* |
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* When this option is specified, the radio will be enclosed by a label tag. |
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* |
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* @param string|null $value |
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* |
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* @return static |
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*/ |
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public function label(?string $value): self |
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{ |
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$new = clone $this; |
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$new->label = $value; |
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return $new; |
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} |
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/** |
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* HTML attributes for the label tag. |
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* |
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* Do not set this option unless you set the "label" option. |
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* |
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* @param array $value |
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* |
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* @return static |
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*/ |
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public function labelAttributes(array $value = []): self |
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{ |
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$new = clone $this; |
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$new->labelAttributes = $value; |
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return $new; |
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} |
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/** |
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* @param bool|float|int|string|Stringable|null $value Value that corresponds to "unchecked" state of the input. |
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* |
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* @return static |
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*/ |
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public function uncheckValue($value): self |
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{ |
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$new = clone $this; |
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$new->uncheckValue = $value === null ? null : (string) $value; |
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return $new; |
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} |
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/** |
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* Generates a radio button tag together with a label for the given form attribute. |
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* |
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* @return string the generated radio button tag. |
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*/ |
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protected function run(): string |
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{ |
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$attributes = $this->build($this->attributes); |
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/** @link https://www.w3.org/TR/2012/WD-html-markup-20120329/input.radio.html#input.radio.attrs.value */ |
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$value = $this->getAttributeValue(); |
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/** @var iterable<int, scalar|Stringable>|scalar|Stringable|null */ |
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$valueDefault = array_key_exists('value', $attributes) ? $attributes['value'] : null; |
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if (is_iterable($value) || is_object($value) || is_iterable($valueDefault) || is_object($valueDefault)) { |
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throw new InvalidArgumentException('Radio widget value can not be an iterable or an object.'); |
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} |
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$radio = RadioTag::tag(); |
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if ($this->enclosedByLabel === true) { |
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$radio = $radio->label( |
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empty($this->label) ? $this->getAttributeLabel() : $this->label, |
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$this->labelAttributes, |
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); |
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} |
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if (empty($value)) { |
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$radio = $radio->checked($this->checked); |
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} else { |
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$radio = $radio->checked("$value" === "$valueDefault"); |
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} |
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return $radio |
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->attributes($attributes) |
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->uncheckValue($this->uncheckValue) |
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->value(is_bool($valueDefault) ? (int) $valueDefault : $valueDefault) |
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->render(); |
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} |
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} |
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yiisoft /
form
