yii2-bootstrap5/src/BootstrapWidgetTrait.php

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<?php
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/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
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declare(strict_types=1);
namespace yii\bootstrap5;
use yii\base\InvalidConfigException;
use yii\helpers\Json;
/**
* BootstrapWidgetTrait is the trait, which provides basic for all bootstrap widgets features.
*
* Note: class, which uses this trait must declare public field named `options` with the array default value:
*
* ```php
* class MyWidget extends \yii\base\Widget
* {
* use BootstrapWidgetTrait;
*
* public $options = [];
* }
* ```
*
* This field is not present in the trait in order to avoid possible PHP Fatal error on definition conflict.
*
* @author Antonio Ramirez <amigo.cobos@gmail.com>
* @author Qiang Xue <qiang.xue@gmail.com>
* @author Paul Klimov <klimov.paul@gmail.com>
*/
trait BootstrapWidgetTrait
{
/**
* @var array the options for the underlying Bootstrap JS plugin.
* Please refer to the corresponding Bootstrap plugin Web page for possible options.
* For example, [this page](http://getbootstrap.com/javascript/#modals) shows
* how to use the "Modal" plugin and the supported options (e.g. "remote").
*/
public $clientOptions = [];
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/**
* @var array the event handlers for the underlying Bootstrap JS plugin.
* Please refer to the corresponding Bootstrap plugin Web page for possible events.
* For example, [this page](http://getbootstrap.com/javascript/#modals) shows
* how to use the "Modal" plugin and the supported events (e.g. "shown").
*/
public $clientEvents = [];
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/**
* Initializes the widget.
* This method will register the bootstrap asset bundle. If you override this method,
* make sure you call the parent implementation first.
* @throws InvalidConfigException
*/
public function init()
{
parent::init();
if (!isset($this->options['id'])) {
$this->options['id'] = $this->getId();
}
}
/**
* Registers a specific Bootstrap plugin and the related events
* @param string $name the name of the Bootstrap plugin
*/
protected function registerPlugin(string $name)
{
$view = $this->getView();
BootstrapPluginAsset::register($view);
$id = $this->options['id'];
$options = empty($this->clientOptions) ? '' : Json::htmlEncode($this->clientOptions);
$js = "jQuery('#$id').$name($options);";
$view->registerJs($js);
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$this->registerClientEvents();
}
/**
* Registers JS event handlers that are listed in [[clientEvents]].
*/
protected function registerClientEvents()
{
if (!empty($this->clientEvents)) {
$id = $this->options['id'];
$js = [];
foreach ($this->clientEvents as $event => $handler) {
$js[] = "jQuery('#$id').on('$event', $handler);";
}
$this->getView()->registerJs(implode("\n", $js));
}
}
}