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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 JsonException; |
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use Yiisoft\Arrays\ArrayHelper; |
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use Yiisoft\Html\Html; |
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/** |
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* Alert renders an alert 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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* echo Alert::widget() |
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* ->options([ |
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* 'class' => 'alert-info', |
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* ]) |
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* ->body('Say hello...'); |
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* ``` |
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*/ |
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class Alert extends Widget |
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{ |
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private ?string $body = null; |
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private array $closeButton = []; |
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private bool $closeButtonEnabled = 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()}-alert"; |
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} |
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$this->initOptions(); |
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$this->registerPlugin('alert', $this->options); |
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return Html::beginTag('div', $this->options) . "\n" |
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. "\n" . $this->renderBodyEnd() |
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. "\n" . Html::endTag('div'); |
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} |
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/** |
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* Renders the alert body and the close button (if any). |
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* |
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* @throws JsonException |
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* |
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* @return string the rendering result |
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*/ |
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protected function renderBodyEnd(): string |
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{ |
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return $this->body . "\n" . $this->renderCloseButton() . "\n"; |
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} |
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/** |
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* Renders the close button. |
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* |
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* @throws JsonException |
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* |
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* @return string the rendering result. |
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*/ |
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protected function renderCloseButton(): ?string |
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{ |
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if ($this->closeButtonEnabled === false) { |
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return null; |
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} |
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$tag = ArrayHelper::remove($this->closeButton, 'tag', 'button'); |
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$label = ArrayHelper::remove($this->closeButton, 'label', Html::tag('span', '×', [ |
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'aria-hidden' => 'true', |
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])); |
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if ($tag === 'button' && !isset($this->closeButton['type'])) { |
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$this->closeButton['type'] = 'button'; |
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} |
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return Html::tag($tag, $label, $this->closeButton); |
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} |
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/** |
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* Initializes the widget options. |
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* |
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* This method sets the default values for various options. |
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*/ |
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protected function initOptions(): void |
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{ |
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Html::addCssClass($this->options, ['widget' => 'alert']); |
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if ($this->closeButtonEnabled !== false) { |
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$this->closeButton = [ |
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'data-dismiss' => 'alert', |
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'class' => ['widget' => 'close'], |
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]; |
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Html::addCssClass($this->options, ['alert-dismissible']); |
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} |
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if (!isset($this->options['role'])) { |
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$this->options['role'] = 'alert'; |
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} |
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} |
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/** |
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* The body content in the alert component. Alert widget will also be treated as the body content, and will be |
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* rendered before this. |
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* |
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* @param string|null $value |
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* |
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* @return $this |
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*/ |
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public function body(?string $value): self |
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{ |
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$this->body = $value; |
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return $this; |
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} |
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/** |
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* The options for rendering the close button tag. |
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* |
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* The close button is displayed in the header of the modal window. Clicking on the button will hide the modal |
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* window. If {@see closeButtonEnabled} is false, no close button will be rendered. |
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* |
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* The following special options are supported: |
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* |
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* - tag: string, the tag name of the button. Defaults to 'button'. |
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* - label: string, the label of the button. Defaults to '×'. |
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* |
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* The rest of the options will be rendered as the HTML attributes of the button tag. |
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* |
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* Please refer to the [Alert documentation](http://getbootstrap.com/components/#alerts) for the supported HTML |
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* attributes. |
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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 closeButton(array $value): self |
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{ |
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$this->closeButton = $value; |
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return $this; |
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} |
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/** |
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* Enable/Disable close button. |
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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 closeButtonEnabled(bool $value): self |
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{ |
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$this->closeButtonEnabled = $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
