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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 {
/* Properties */
/**
* Whether to use `<input/>` rather than `<button/>`.
*
* @var boolean
*/
protected $useInputTag;
private $labelElementMixin;
/**
* @param array $config Configuration options
* @param string $config['type'] HTML tag `type` attribute, may be 'button', 'submit' or 'reset'
* (default: 'button')
* @param boolean $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 = array() ) {
// Configuration initialization
$config = array_merge( array( 'type' => 'button', 'useInputTag' => false ), $config );
// Properties (must be set before parent constructor, which calls setValue())
$this->useInputTag = $config['useInputTag'];
// Parent constructor
parent::__construct( $config );
// Mixins
$this->mixin( new ButtonElement( $this,
array_merge( $config, array( 'button' => $this->input ) ) ) );
$this->mixin( new IconElement( $this, $config ) );
$this->mixin( new IndicatorElement( $this, $config ) );
// HACK: We need to have access to the mixin to override the setLabel() method
$this->mixin( $this->labelElementMixin = new LabelElement( $this, $config ) );
$this->mixin( new TitledElement( $this,
array_merge( $config, array( 'titled' => $this->input ) ) ) );
// Initialization
if ( !$config['useInputTag'] ) {
$this->input->appendContent( $this->icon, $this->label, $this->indicator );
}
// HACK: This is done in LabelElement mixin, but doesn't call our overridden method because of
// how we implement mixins. Switching to traits will fix that.
$this->setLabel( isset( $config['label'] ) ? $config['label'] : null );
$this->addClasses( array( 'oo-ui-buttonInputWidget' ) );
}
protected function getInputElement( $config ) {
$input = new Tag( $config['useInputTag'] ? 'input' : 'button' );
$input->setAttributes( array( 'type' => $config['type'] ) );
return $input;
}
/**
* Set label value.
*
* Overridden to support setting the 'value' of `<input/>` elements.
*
* @param string|null $label Label text
* @chainable
*/
public function setLabel( $label ) {
$this->labelElementMixin->setLabel( $label );
if ( $this->useInputTag ) {
// Discard non-plaintext labels
$label = is_string( $label ) ? $label : '';
$this->input->setValue( $label );
}
return $this;
}
/**
* Set the value of the input.
*
* Overridden to disable for `<input/>` elements, which have value identical to the label.
*
* @param string $value New value
* @chainable
*/
public function setValue( $value ) {
if ( !$this->useInputTag ) {
parent::setValue( $value );
}
return $this;
}
public function getConfig( &$config ) {
if ( $this->useInputTag ) {
$config['useInputTag'] = true;
}
$config['type'] = $this->input->getAttribute( 'type' );
return parent::getConfig( $config );
}
}
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