# all files / src/widgets/ RadioSelectInputWidget.js

91.3% Statements 42/46
90% Branches 9/10
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     /**
     * RadioSelectInputWidget is a {@link OO.ui.RadioSelectWidget RadioSelectWidget} intended to be used
     * within an HTML form, such as a OO.ui.FormLayout. The selected value is synchronized with the value
     * of a hidden HTML `input` tag. Please see the [OOjs UI documentation on MediaWiki][1] for
     * more information about input widgets.
     *
     * This and OO.ui.DropdownInputWidget support the same configuration options.
     *
     *     @example
     *     // Example: A RadioSelectInputWidget with three options
     *     var radioSelectInput = new OO.ui.RadioSelectInputWidget( {
     *         options: [
     *             { data: 'a', label: 'First' },
     *             { data: 'b', label: 'Second'},
     *             { data: 'c', label: 'Third' }
     *         ]
     *     } );
     *     $( 'body' ).append( radioSelectInput.$element );
     *
     * [1]: https://www.mediawiki.org/wiki/OOjs_UI/Widgets/Inputs
     *
     * @class
     * @extends OO.ui.InputWidget
     *
     * @constructor
     * @param {Object} [config] Configuration options
     * @cfg {Object[]} [options=[]] Array of menu options in the format `{ data: …, label: … }`
     */
    OO.ui.RadioSelectInputWidget = function OoUiRadioSelectInputWidget( config ) {
    	// Configuration initialization
    	config = config || {};

    	// Properties (must be done before parent constructor which calls #setDisabled)
    	this.radioSelectWidget = new OO.ui.RadioSelectWidget();

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

    	// Events
    	this.radioSelectWidget.connect( this, { select: 'onMenuSelect' } );

    	// Initialization
    	this.setOptions( config.options || [] );
    	this.$element
    		.addClass( 'oo-ui-radioSelectInputWidget' )
    		.append( this.radioSelectWidget.$element );
    	this.setTabIndexedElement( null );
    };

    /* Setup */

    OO.inheritClass( OO.ui.RadioSelectInputWidget, OO.ui.InputWidget );

    /* Static Methods */

    /**
     * @inheritdoc
     */
    OO.ui.RadioSelectInputWidget.static.gatherPreInfuseState = function ( node, config ) {
    	var state = OO.ui.RadioSelectInputWidget.parent.static.gatherPreInfuseState( node, config );
    	state.value = $( node ).find( '.oo-ui-radioInputWidget .oo-ui-inputWidget-input:checked' ).val();
    	return state;
    };

    /**
     * @inheritdoc
     */
    OO.ui.RadioSelectInputWidget.static.reusePreInfuseDOM = function ( node, config ) {
    	config = OO.ui.RadioSelectInputWidget.parent.static.reusePreInfuseDOM( node, config );
    	// Cannot reuse the `<input type=radio>` set
    	delete config.$input;
    	return config;
    };

    /* Methods */

    /**
     * @inheritdoc
     * @protected
     */
    OO.ui.RadioSelectInputWidget.prototype.getInputElement = function () {
    	return $( '<input>' ).attr( 'type', 'hidden' );
    };

    /**
     * Handles menu select events.
     *
     * @private
     * @param {OO.ui.RadioOptionWidget} item Selected menu item
     */
    OO.ui.RadioSelectInputWidget.prototype.onMenuSelect = function ( item ) {
    	this.setValue( item.getData() );
    };

    /**
     * @inheritdoc
     */
    OO.ui.RadioSelectInputWidget.prototype.setValue = function ( value ) {
    	value = this.cleanUpValue( value );
    	this.radioSelectWidget.selectItemByData( value );
    	OO.ui.RadioSelectInputWidget.parent.prototype.setValue.call( this, value );
    	return this;
    };

    /**
     * @inheritdoc
     */
    OO.ui.RadioSelectInputWidget.prototype.setDisabled = function ( state ) {
    	this.radioSelectWidget.setDisabled( state );
    	OO.ui.RadioSelectInputWidget.parent.prototype.setDisabled.call( this, state );
    	return this;
    };

    /**
     * Set the options available for this input.
     *
     * @param {Object[]} options Array of menu options in the format `{ data: …, label: … }`
     * @chainable
     */
    OO.ui.RadioSelectInputWidget.prototype.setOptions = function ( options ) {
    	var
    		value = this.getValue(),
    		widget = this;

    	// Rebuild the radioSelect menu
    	this.radioSelectWidget
    		.clearItems()
    		.addItems( options.map( function ( opt ) {
    			var optValue = widget.cleanUpValue( opt.data );
    			return new OO.ui.RadioOptionWidget( {
    				data: optValue,
    				label: opt.label !== undefined ? opt.label : optValue
    			} );
    		} ) );

    	// Restore the previous value, or reset to something sensible
    	if ( this.radioSelectWidget.getItemFromData( value ) ) {
    		// Previous value is still available, ensure consistency with the radioSelect
    		this.setValue( value );
    	} else {
    		// No longer valid, reset
    		if ( options.length ) {
    			this.setValue( options[ 0 ].data );
    		}
    	}

    	return this;
    };

    /**
     * @inheritdoc
     */
    OO.ui.RadioSelectInputWidget.prototype.focus = function () {
    	this.radioSelectWidget.focus();
    	return this;
    };

    /**
     * @inheritdoc
     */
    OO.ui.RadioSelectInputWidget.prototype.blur = function () {
    	this.radioSelectWidget.blur();
    	return this;
    };