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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Yii\Bootstrap4; |
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use Yiisoft\Arrays\ArrayHelper; |
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use Yiisoft\Factory\Exceptions\InvalidConfigException; |
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use Yiisoft\Html\Html; |
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use function implode; |
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use function is_array; |
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/** |
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* ButtonGroup renders a button group bootstrap component. |
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* |
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* For example, |
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* |
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* ```php |
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* // a button group with items configuration |
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* echo ButtonGroup::widget() |
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* ->buttons([ |
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* ['label' => 'A'], |
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* ['label' => 'B'], |
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* ['label' => 'C', 'visible' => false], |
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* ]); |
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* |
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* // button group with an item as a string |
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* echo ButtonGroup::widget() |
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* ->buttons([ |
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* Button::widget() |
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* ->label('A'), |
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* ['label' => 'B'], |
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* ]); |
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* ``` |
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* |
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* Pressing on the button should be handled via JavaScript. See the following for details: |
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*/ |
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class ButtonGroup extends Widget |
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{ |
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private array $buttons = []; |
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private bool $encodeLabels = true; |
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private array $options = []; |
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protected function run(): string |
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{ |
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if (!isset($this->options['id'])) { |
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$this->options['id'] = "{$this->getId()}-button-group"; |
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} |
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Html::addCssClass($this->options, ['widget' => 'btn-group']); |
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if (!isset($this->options['role'])) { |
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$this->options['role'] = 'group'; |
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} |
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return Html::tag('div', $this->renderButtons(), $this->options); |
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} |
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/** |
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* Generates the buttons that compound the group as specified on {@see buttons}. |
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* |
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* @throws InvalidConfigException |
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* |
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* @return string the rendering result. |
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*/ |
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protected function renderButtons(): string |
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{ |
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$buttons = []; |
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foreach ($this->buttons as $button) { |
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if (is_array($button)) { |
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$visible = ArrayHelper::remove($button, 'visible', true); |
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if ($visible === false) { |
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continue; |
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} |
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if (!isset($button['encodeLabel'])) { |
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$button['encodeLabel'] = $this->encodeLabels; |
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} |
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if (!isset($button['options']['type'])) { |
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ArrayHelper::setValueByPath($button, 'options.type', 'button'); |
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} |
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$buttons[] = Button::widget() |
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->encodeLabels($button['encodeLabel']) |
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->label($button['label']) |
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->options($button['options']) |
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->render(); |
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} else { |
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$buttons[] = $button; |
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} |
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} |
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return implode("\n", $buttons); |
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} |
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/** |
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* List of buttons. Each array element represents a single button which can be specified as a string or an array of |
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* the following structure: |
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* |
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* - label: string, required, the button label. |
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* - options: array, optional, the HTML attributes of the button. |
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* - visible: bool, optional, whether this button is visible. Defaults to true. |
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* |
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* @param array $value |
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* |
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* @return $this |
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*/ |
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public function buttons(array $value): self |
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{ |
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$this->buttons = $value; |
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return $this; |
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} |
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/** |
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* Whether to HTML-encode the button labels. |
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* |
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* @param bool $value |
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* |
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* @return $this |
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*/ |
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public function encodeLabels(bool $value): self |
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{ |
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$this->encodeLabels = $value; |
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return $this; |
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} |
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/** |
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* The HTML attributes for the widget container tag. The following special options are recognized. |
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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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* @param array $value |
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* |
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* @return $this |
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*/ |
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public function options(array $value): self |
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{ |
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$this->options = $value; |
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return $this; |
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} |
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} |
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yiisoft /
yii-bootstrap4
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