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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Form\Field; |
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use InvalidArgumentException; |
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use Stringable; |
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use Yiisoft\Form\Field\Base\InputField; |
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use Yiisoft\Form\Field\Base\ValidationClass\ValidationClassInterface; |
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use Yiisoft\Form\Field\Base\ValidationClass\ValidationClassTrait; |
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use Yiisoft\Html\Html; |
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use function is_bool; |
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use function is_object; |
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use function is_string; |
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/** |
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* The input element with a type attribute whose value is "checkbox" represents a state or option that can be toggled. |
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* |
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* @link https://html.spec.whatwg.org/multipage/input.html#checkbox-state-(type=checkbox) |
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*/ |
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final class Checkbox extends InputField implements ValidationClassInterface |
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{ |
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use ValidationClassTrait; |
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private ?string $uncheckValue = '0'; |
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private bool $enclosedByLabel = true; |
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private ?string $inputLabel = null; |
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private array $inputLabelAttributes = []; |
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private bool $inputLabelEncode = true; |
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private ?string $inputValue = null; |
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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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public function uncheckValue(bool|float|int|string|Stringable|null $value): self |
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{ |
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$new = clone $this; |
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$new->uncheckValue = $this->prepareValue($value); |
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return $new; |
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} |
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/** |
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* If the input should be enclosed by label. |
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* |
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* @param bool $value If the input should be en closed by label. |
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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 checkbox. |
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* |
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* When this option is specified, the checkbox 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 self |
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* |
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* @link https://www.w3.org/TR/html52/sec-forms.html#the-label-element |
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*/ |
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public function inputLabel(?string $value): self |
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{ |
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$new = clone $this; |
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$new->inputLabel = $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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* {@see \Yiisoft\Html\Html::renderTagAttributes()} for details on how attributes are being rendered. |
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*/ |
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public function inputLabelAttributes(array $attributes): self |
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{ |
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$new = clone $this; |
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$new->inputLabelAttributes = $attributes; |
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return $new; |
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} |
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public function inputLabelEncode(bool $encode): self |
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{ |
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$new = clone $this; |
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$new->inputLabelEncode = $encode; |
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return $new; |
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} |
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public function inputValue(bool|float|int|string|Stringable|null $value): self |
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{ |
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$new = clone $this; |
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$new->inputValue = $this->prepareValue($value); |
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return $new; |
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} |
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/** |
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* @link https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fe-disabled |
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*/ |
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public function disabled(bool $disabled = true): self |
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{ |
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$new = clone $this; |
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$new->inputTagAttributes['disabled'] = $disabled; |
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return $new; |
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} |
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/** |
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* Identifies the element (or elements) that describes the object. |
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* |
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* @link https://w3c.github.io/aria/#aria-describedby |
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*/ |
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public function ariaDescribedBy(?string $value): self |
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{ |
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$new = clone $this; |
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$new->inputTagAttributes['aria-describedby'] = $value; |
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return $new; |
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} |
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/** |
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* Defines a string value that labels the current element. |
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* |
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* @link https://w3c.github.io/aria/#aria-label |
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*/ |
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public function ariaLabel(?string $value): self |
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{ |
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$new = clone $this; |
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$new->inputTagAttributes['aria-label'] = $value; |
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return $new; |
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} |
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/** |
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* Focus on the control (put cursor into it) when the page loads. Only one form element could be in focus |
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* at the same time. |
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* |
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* @link https://html.spec.whatwg.org/multipage/interaction.html#attr-fe-autofocus |
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*/ |
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public function autofocus(bool $value = true): self |
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{ |
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$new = clone $this; |
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$new->inputTagAttributes['autofocus'] = $value; |
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return $new; |
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} |
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/** |
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* The `tabindex` attribute indicates that its element can be focused, and where it participates in sequential |
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* keyboard navigation (usually with the Tab key, hence the name). |
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* |
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* It accepts an integer as a value, with different results depending on the integer's value: |
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* |
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* - A negative value (usually `tabindex="-1"`) means that the element is not reachable via sequential keyboard |
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* navigation, but could be focused with Javascript or visually. It's mostly useful to create accessible widgets |
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* with JavaScript. |
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* - `tabindex="0"` means that the element should be focusable in sequential keyboard navigation, but its order is |
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* defined by the document's source order. |
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* - A positive value means the element should be focusable in sequential keyboard navigation, with its order |
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* defined by the value of the number. That is, `tabindex="4"` is focused before `tabindex="5"`, but after |
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* `tabindex="3"`. |
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* |
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* @link https://html.spec.whatwg.org/multipage/interaction.html#attr-tabindex |
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*/ |
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public function tabIndex(?int $value): self |
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{ |
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$new = clone $this; |
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$new->inputTagAttributes['tabindex'] = $value; |
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return $new; |
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} |
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protected function generateInput(): string |
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{ |
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$value = $this->getAttributeValue(); |
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if (!is_bool($value) |
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&& !is_string($value) |
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&& !is_numeric($value) |
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&& $value !== null |
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&& (!is_object($value) || !method_exists($value, '__toString')) |
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) { |
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throw new InvalidArgumentException( |
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'Checkbox widget requires a string, numeric, bool, Stringable or null value.' |
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); |
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} |
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$value = $this->prepareValue($value); |
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$tagAttributes = $this->getInputTagAttributes(); |
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$inputValue = $this->inputValue; |
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$inputValue = $inputValue ?? $this->prepareValue($tagAttributes['value'] ?? null); |
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unset($tagAttributes['value']); |
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$inputValue = $inputValue ?? '1'; |
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$checkbox = Html::checkbox($this->getInputName(), $inputValue, $tagAttributes); |
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$label = $this->inputLabel ?? $this->getAttributeLabel(); |
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if ($this->enclosedByLabel) { |
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$checkbox = $checkbox |
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->label($label, $this->inputLabelAttributes) |
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->labelEncode($this->inputLabelEncode); |
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} |
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$html = $checkbox |
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->checked($inputValue === $value) |
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->uncheckValue($this->uncheckValue) |
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->render(); |
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if (!$this->enclosedByLabel && $this->inputLabel !== null) { |
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$html .= ' ' . ($this->inputLabelEncode ? Html::encode($this->inputLabel) : $this->inputLabel); |
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} |
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return $html; |
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} |
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protected function shouldHideLabel(): bool |
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{ |
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return $this->enclosedByLabel; |
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} |
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private function prepareValue(mixed $value): ?string |
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{ |
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if ($value === null) { |
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return null; |
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} |
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if (is_bool($value)) { |
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return $value ? '1' : '0'; |
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} |
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return (string) $value; |
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} |
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protected function prepareContainerTagAttributes(array &$attributes): void |
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{ |
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if ($this->hasFormModelAndAttribute()) { |
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$this->addValidationClassToTagAttributes( |
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$attributes, |
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$this->getFormModel(), |
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$this->getAttributeName(), |
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); |
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} |
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} |
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} |
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