# all files / src/widgets/ RadioOptionWidget.js

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     /**
     * RadioOptionWidget is an option widget that looks like a radio button.
     * The class is used with OO.ui.RadioSelectWidget to create a selection of radio options.
     * Please see the [OOjs UI documentation on MediaWiki] [1] for more information.
     *
     * [1]: https://www.mediawiki.org/wiki/OOjs_UI/Widgets/Selects_and_Options#Button_selects_and_option
     *
     * @class
     * @extends OO.ui.OptionWidget
     *
     * @constructor
     * @param {Object} [config] Configuration options
     */
    OO.ui.RadioOptionWidget = function OoUiRadioOptionWidget( config ) {
    	// Configuration initialization
    	config = config || {};

    	// Properties (must be done before parent constructor which calls #setDisabled)
    	this.radio = new OO.ui.RadioInputWidget( { value: config.data, tabIndex: -1 } );

    	// Parent constructor
    	OO.ui.RadioOptionWidget.parent.call( this, config );

    	// Initialization
    	// Remove implicit role, we're handling it ourselves
    	this.radio.$input.attr( 'role', 'presentation' );
    	this.$element
    		.addClass( 'oo-ui-radioOptionWidget' )
    		.attr( 'role', 'radio' )
    		.attr( 'aria-checked', 'false' )
    		.removeAttr( 'aria-selected' )
    		.prepend( this.radio.$element );
    };

    /* Setup */

    OO.inheritClass( OO.ui.RadioOptionWidget, OO.ui.OptionWidget );

    /* Static Properties */

    /**
     * @static
     * @inheritdoc
     */
    OO.ui.RadioOptionWidget.static.highlightable = false;

    /**
     * @static
     * @inheritdoc
     */
    OO.ui.RadioOptionWidget.static.scrollIntoViewOnSelect = true;

    /**
     * @static
     * @inheritdoc
     */
    OO.ui.RadioOptionWidget.static.pressable = false;

    /**
     * @static
     * @inheritdoc
     */
    OO.ui.RadioOptionWidget.static.tagName = 'label';

    /* Methods */

    /**
     * @inheritdoc
     */
    OO.ui.RadioOptionWidget.prototype.setSelected = function ( state ) {
    	OO.ui.RadioOptionWidget.parent.prototype.setSelected.call( this, state );

    	this.radio.setSelected( state );
    	this.$element
    		.attr( 'aria-checked', state.toString() )
    		.removeAttr( 'aria-selected' );

    	return this;
    };

    /**
     * @inheritdoc
     */
    OO.ui.RadioOptionWidget.prototype.setDisabled = function ( disabled ) {
    	OO.ui.RadioOptionWidget.parent.prototype.setDisabled.call( this, disabled );

    	this.radio.setDisabled( this.isDisabled() );

    	return this;
    };