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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 Yiisoft\Html\Tag\Button; |
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/** |
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* @link https://html.spec.whatwg.org/multipage/form-elements.html#the-button-element |
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*/ |
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abstract class ButtonField extends PartsField |
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{ |
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use FieldContentTrait; |
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private ?Button $button = null; |
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private array $attributes = []; |
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final public function button(?Button $button): static |
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{ |
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$new = clone $this; |
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$new->button = $button; |
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return $new; |
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} |
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final public function attributes(array $attributes): static |
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{ |
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$new = clone $this; |
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$new->attributes = array_merge($this->attributes, $attributes); |
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return $new; |
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} |
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final public function replaceAttributes(array $attributes): static |
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{ |
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$new = clone $this; |
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$new->attributes = $attributes; |
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return $new; |
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} |
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final public function disabled(?bool $disabled = true): static |
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{ |
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$new = clone $this; |
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$new->attributes['disabled'] = $disabled; |
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return $new; |
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} |
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/** |
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* Specifies the form element the button belongs to. The value of this attribute must be the ID attribute of a form |
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* element in the same document. |
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* |
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* @param string|null $id ID of a form. |
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* |
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* @link https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fae-form |
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*/ |
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final public function form(?string $id): static |
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{ |
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$new = clone $this; |
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$new->attributes['form'] = $id; |
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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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final public function tabIndex(?int $value): static |
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{ |
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$new = clone $this; |
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$new->attributes['tabindex'] = $value; |
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return $new; |
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} |
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final protected function generateInput(): string |
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{ |
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$button = ($this->button ?? Button::tag()) |
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->type($this->getType()); |
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if (!empty($this->attributes)) { |
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$button = $button->attributes($this->attributes); |
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} |
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$content = $this->renderContent(); |
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if ($content !== '') { |
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$button = $button->content($content); |
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} |
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return $button->render(); |
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} |
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abstract protected function getType(): string; |
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} |
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yiisoft /
form
