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<?php
/**
* @package yii2-grid
* @author Kartik Visweswaran <kartikv2@gmail.com>
* @copyright Copyright © Kartik Visweswaran, Krajee.com, 2014 - 2019
* @version 3.3.2
*/
namespace kartik\grid;
use Yii;
use Closure;
use yii\base\InvalidConfigException;
use yii\grid\Column;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
use yii\helpers\Json;
use yii\web\View;
/**
* RadioColumn displays a column of radio inputs in a grid view. It is different than the CheckboxColumn in the sense
* that it allows only a single row to be selected at a time.
*
* To add a RadioColumn to the gridview, add it to the [[GridView::columns|columns]] configuration as follows:
*
* ```php
* 'columns' => [
* // ...
* [
* 'class' => RadioColumn::className(),
* // you may configure additional properties here
* ],
* ]
* ```
*
* @author Kartik Visweswaran <kartikv2@gmail.com>
* @since 1.0
*/
class RadioColumn extends Column
{
use ColumnTrait;
/**
* @var string the name of the radio input fields.
*/
public $name = 'kvradio';
/**
* @var boolean whether to show the clear button in the header to clear the radio.
*/
public $showClear = true;
/**
* @var array the HTML attributes for the clear button in the header. The following special option is recognized:
* - label: string, the label for the button (defaults to `×`);
*/
public $clearOptions = ['class' => 'close'];
/**
* @var array|\Closure the HTML attributes for radio inputs. This can either be an array of attributes or an
* anonymous function ([[Closure]]) that returns such an array. The signature of the function should be the
* following: `function ($model, $key, $index, $column)`. Where `$model`, `$key`, and `$index` refer to the
* model, key and index of the row currently being rendered and `$column` is a reference to the [[RadioColumn]]
* object. A function may be used to assign different attributes to different rows based on the data in that
* row. Specifically if you want to set a different value for the radio, you can use this option in the
* following way (in this example using the `name` attribute of the model):
*
* ```php
* 'radioOptions' => function($model, $key, $index, $column) {
* return ['value' => $model->name];
* }
* ```
*
* @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
*/
public $radioOptions = [];
/**
* @var boolean highlight current row if checkbox is checked
*/
public $rowHighlight = true;
/**
* @var string highlight CSS class to be applied for highlighting the row. Defaults to 'success'.
*/
public $rowSelectedClass;
/**
* @var string the variables for the client script
*/
protected $_clientVars = '';
/**
* @inheritdoc
* @throws InvalidConfigException
*/
public function init()
{
$this->initColumnSettings([
'hiddenFromExport' => true,
'mergeHeader' => true,
'hAlign' => GridView::ALIGN_CENTER,
'vAlign' => GridView::ALIGN_MIDDLE,
'width' => '50px'
]);
if (empty($this->name)) {
throw new InvalidConfigException('The "name" property must be set.');
}
if (!isset($this->rowSelectedClass)) {
$this->rowSelectedClass = $this->grid->getCssClass(GridView::BS_TABLE_SUCCESS);
}
$css = $this->rowHighlight ? $this->rowSelectedClass : '';
$this->_view = $this->grid->getView();
RadioColumnAsset::register($this->_view);
$grid = $this->grid->options['id'];
$this->_clientVars = "'{$grid}', '{$this->name}', '{$css}'";
$this->_clientScript = "kvSelectRadio({$this->_clientVars});";
$this->_view->registerJs($this->_clientScript);
$this->parseFormat();
$this->parseVisibility();
parent::init();
$this->setPageRows();
}
/**
* @inheritdoc
*/
protected function renderHeaderCellContent()
{
if ($this->header !== null || !$this->showClear) {
return parent::renderHeaderCellContent();
} else {
$label = ArrayHelper::remove($this->clearOptions, 'label', '×');
Html::addCssClass($this->clearOptions, 'kv-clear-radio');
if (empty($this->clearOptions['title'])) {
$this->clearOptions['title'] = Yii::t('kvgrid', 'Clear selection');
}
$this->_view->registerJs("kvClearRadio({$this->_clientVars});");
return Html::button($label, $this->clearOptions);
}
}
/**
* @inheritdoc
*/
public function renderDataCell($model, $key, $index)
{
$this->initPjax($this->_clientScript);
$options = $this->fetchContentOptions($model, $key, $index);
Html::addCssClass($options, 'kv-row-radio-select');
return Html::tag('td', $this->renderDataCellContent($model, $key, $index), $options);
}
/**
* @inheritdoc
*/
protected function renderDataCellContent($model, $key, $index)
{
if ($this->radioOptions instanceof Closure) {
$options = call_user_func($this->radioOptions, $model, $key, $index, $this);
} else {
$options = $this->radioOptions;
if (!isset($options['value'])) {
$options['value'] = is_array($key) ? Json::encode($key) : $key;
}
}
return Html::radio($this->name, !empty($options['checked']), $options);
}
}