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<?php
namespace OOUI;
/**
* A button that is an input widget. Intended to be used within a FormLayout.
*/
class ButtonInputWidget extends InputWidget {
use ButtonElement;
use IconElement;
use IndicatorElement;
use LabelElement {
LabelElement::setLabel as setLabelElementLabel;
}
use FlaggedElement;
/* Static Properties */
/** @var string */
public static $tagName = 'span';
/* Properties */
/**
* Whether to use `<input>` rather than `<button>`.
*
* @var bool
*/
protected $useInputTag;
/**
* @param array $config Configuration options
* - string $config['type'] HTML tag `type` attribute, may be 'button', 'submit' or 'reset'
* (default: 'button')
* - bool $config['useInputTag'] Whether to use `<input>` rather than `<button>`. Only
* useful if you need IE 6 support in a form with multiple buttons. If you use this
* option, icons and indicators will not be displayed, it won't be possible to have a
* non-plaintext label, and it won't be possible to set a value (which will internally
* become identical to the label). (default: false)
*/
public function __construct( array $config = [] ) {
// Configuration initialization
$config = array_merge( [ 'type' => 'button', 'useInputTag' => false ], $config );
// Properties (must be set before parent constructor, which calls setValue())
$this->useInputTag = $config['useInputTag'];
// Parent constructor
parent::__construct( $config );
// Traits
$this->initializeButtonElement(
array_merge( [ 'button' => $this->input ], $config )
);
$this->initializeIconElement( $config );
$this->initializeIndicatorElement( $config );
$this->initializeLabelElement( $config );
$this->initializeFlaggedElement(
array_merge( [ 'flagged' => $this ], $config )
);
// Initialization
if ( !$config['useInputTag'] ) {
$this->input->appendContent( $this->icon, $this->label, $this->indicator );
}
$this->addClasses( [ 'oo-ui-buttonInputWidget' ] );
}
/** @inheritDoc */
protected function getInputElement( $config ) {
$type = in_array( $config['type'], [ 'button', 'submit', 'reset' ] ) ?
$config['type'] :
'button';
$tag = $config['useInputTag'] ? 'input' : 'button';
return ( new Tag( $tag ) )->setAttributes( [ 'type' => $type ] );
}
/**
* Set label value.
*
* Overridden to support setting the 'value' of `<input>` elements.
*
* @param string|null $label Label text
* @return $this
*/
public function setLabel( $label ) {
if ( $this->useInputTag ) {
// Discard non-plaintext labels
if ( !is_string( $label ) ) {
$label = '';
}
$this->input->setValue( $label );
}
return $this->setLabelElementLabel( $label );
}
/**
* Set the value of the input.
*
* Overridden to disable for `<input>` elements, which have value identical to the label.
*
* @param mixed $value New value should be a string
* @return $this
*/
public function setValue( $value ) {
if ( !$this->useInputTag ) {
parent::setValue( $value );
}
return $this;
}
/**
* @return null
*/
public function getInputId() {
// Disable generating `<label>` elements for buttons. One would very rarely need additional label
// for a button, and it's already a big clickable target, and it causes unexpected rendering.
return null;
}
/** @inheritDoc */
public function getConfig( &$config ) {
if ( $this->useInputTag ) {
$config['useInputTag'] = true;
}
$config['type'] = $this->input->getAttribute( 'type' );
return parent::getConfig( $config );
}
}
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