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<?php
namespace OOUI;
/**
* Element containing a label.
*
* @abstract
*/
class LabelElement extends ElementMixin {
/**
* Label value.
*
* @var string|HtmlSnippet|null
*/
protected $label = null;
public static $targetPropertyName = 'label';
/**
* @param Element $element Element being mixed into
* @param array $config Configuration options
* @param string|HtmlSnippet $config['label'] Label text
*/
public function __construct( Element $element, array $config = array() ) {
// Parent constructor
// FIXME 'labelElement' is a very stupid way to call '$label'
$target = isset( $config['labelElement'] ) ? $config['labelElement'] : new Tag( 'span' );
parent::__construct( $element, $target, $config );
// Initialization
$this->target->addClasses( array( 'oo-ui-labelElement-label' ) );
$this->setLabel( isset( $config['label'] ) ? $config['label'] : null );
}
/**
* Set the label.
*
* An empty string will result in the label being hidden. A string containing only whitespace will
* be converted to a single ` `.
*
* @param string|HtmlSnippet|null $label Label text
* @chainable
*/
public function setLabel( $label ) {
$this->label = $label;
$this->target->clearContent();
if ( $this->label !== null ) {
if ( is_string( $this->label ) && $this->label !== '' && trim( $this->label ) === '' ) {
$this->target->appendContent( new HtmlSnippet( ' ' ) );
} else {
$this->target->appendContent( $label );
}
}
$this->element->toggleClasses( array( 'oo-ui-labelElement' ), !!$this->label );
return $this;
}
/**
* Get the label.
*
* @return string|HtmlSnippet|null Label text
*/
public function getLabel() {
return $this->label;
}
public function getConfig( &$config ) {
if ( $this->label !== null ) {
$config['label'] = $this->label;
}
return parent::getConfig( $config );
}
}
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