woocommerce/plugins/woocommerce-beta-tester/assets/js/version-picker.js

/**
 * Handles the version picker form.
 *
 * @package
 */

jQuery( function ( $ ) {
	/**
	 * Version picker
	 */
	const wc_beta_tester_version_picker = {
		/**
		 * Initialize Version Information click
		 */
		init() {
			instance = this;
			instance.new_version = undefined;

			$( '#wcbt-modal-version-switch-confirm' ).on(
				'click',
				this.showConfirmVersionSwitchModal
			);
			$( 'input[type=radio][name=wcbt_switch_to_version]' )
				.change( function () {
					if ( $( this ).is( ':checked' ) ) {
						instance.new_version = $( this ).val();
					}
				} )
				.trigger( 'change' );
		},

		/**
		 * Handler for showing/hiding version switch modal
		 *
		 * @param  event
		 */
		showConfirmVersionSwitchModal( event ) {
			event.preventDefault();

			if ( ! instance.new_version ) {
				alert( wc_beta_tester_version_picker_params.i18n_pick_version );
			} else {
				$( this ).WCBackboneModal( {
					template: 'wcbt-version-switch-confirm',
					variable: {
						new_version: instance.new_version,
					},
				} );

				$( '#wcbt-submit-version-switch' ).on(
					'click',
					instance.submitSwitchVersionForm
				);
			}
		},

		/**
		 * Submit form to switch version of WooCommerce.
		 *
		 * @param  event
		 */
		submitSwitchVersionForm( event ) {
			event.preventDefault();

			$( 'form[name=wcbt-select-version]' ).get( 0 ).submit();
		},
	};

	wc_beta_tester_version_picker.init();
} );