woocommerce/plugins/woocommerce-beta-tester/includes/class-wc-beta-tester-version-picker.php

<?php
/**
 * Beta Tester plugin Version Picker class
 *
 * @package WC_Beta_Tester
 */

defined( 'ABSPATH' ) || exit;

/**
 * Settings Class.
 */
class WC_Beta_Tester_Version_Picker {

	/**
	 * @var null
	 */
	protected $current_version = null;

	/**
	 * Constructor
	 */
	public function __construct() {
		add_action( 'admin_menu', array( $this, 'add_to_menus' ) );
	}

	/**
	 * Add options page to menu
	 *
	 * @return void
	 */
	public function add_to_menus() {
		add_submenu_page( 'tools.php',
			__( 'WooCommerce Beta Tester Version Switch', 'woocommerce-beta-tester' ),
			__( 'WooCommerce Beta Tester Version Switch', 'woocommerce-beta-tester' ),
			'install_plugins',
			'wc-beta-tester-version-picker',
			array( $this, 'select_versions_form_html' ) );
	}

	/**
	 * Return HTML code representation of list of WooCommerce versions for the selected channel.
	 *
	 * @param string $channel Filter versions by channel: all|beta|rc|stable.
	 * @return string
	 */
	public function get_versions_html( $channel ) {
		$tags = WC_Beta_Tester::instance()->get_tags( $channel );

		if ( ! $tags ) {
			return '';
		}

		usort( $tags, 'version_compare' );
		$tags = array_reverse( $tags );

		$versions_html         = '<ul class="wcbt-version-list">';
		$plugin_data           = WC_Beta_Tester::instance()->get_plugin_data();
		$this->current_version = $plugin_data['Version'];

		// Loop through versions and output in a radio list.
		foreach ( $tags as $tag_version ) {

			$versions_html .= '<li class="wcbt-version-li">';
			$versions_html .= '<label><input type="radio" value="' . esc_attr( $tag_version ) . '" name="switch_to_version">' . $tag_version;

			// Is this the current version?
			if ( $tag_version === $this->current_version ) {
				$versions_html .= '<span class="wcbt-current-version">' . esc_html__( 'Installed Version', 'woocommerce-beta-tester' ) . '</span>';
			}

			$versions_html .= '</label>';
			$versions_html .= '</li>';
		}

		$versions_html .= '</ul>';

		return $versions_html;
	}

	// TODO: this needs css (and maybe a bit of JS), but the idea is to display Switch version button that displays modal which contains the actual form submit,
	/**
	 * Echo HTML form to switch WooCommerce versions, filtered for the selected channel.
	 */
	public function select_versions_form_html() {
		if ( ! current_user_can( 'install_plugins' ) ) {
			return;
		}

		$options = get_option( 'wc_beta_tester_options' );
		$channel = $options[WC_Beta_Tester_Settings::$version_setting_id];

		?>
		<div class="wrap">
			<div class="wcbt-content-wrap">
				<h1><?php esc_html_e( 'Available WooCommerce versions', 'woocommerce-beta-tester' ); ?></h1>
				<form name="wcbt-select-version" class="wcbt-select-version-form" action="<?php echo esc_attr( admin_url( '/index.php' ) ); ?>">
					<div class="wcbt-versions-wrap">
						<?php echo $this->get_versions_html( $channel ); // WPCS: XSS ok. ?>
					</div>
					<div class="wcbt-submit-wrap">
						<a href="#wcbt-modal-confirm" class="magnific-popup button-primary wcbt-rollback-disabled"><?php esc_html_e( 'Switch version', 'woocommerce-beta-tester' ); ?></a>
						<input type="button" value="<?php esc_html_e( 'Cancel', 'woocommerce-beta-tester' ); ?>" class="button" onclick="location.href='<?php echo esc_attr( wp_get_referer() ); ?>';" />
					</div>
					<?php wp_nonce_field( 'wcbt_switch_version_nonce' ); ?>
					<div id="wcbt-modal-confirm" class="white-popup mfp-hide">
						<div class="wcbt-modal-inner">
							<p class="wcbt-rollback-intro"><?php esc_html_e( 'Are you sure you want to switch the version of WooCommerce plugin?', 'woocommerce-beta-tester' ); ?></p>

							<div class="wcbt-rollback-details">
								<table class="wcbt-widefat">
									<tbody>
									<tr class="alternate">
										<td class="row-title">
											<label for="tablecell"><?php esc_html_e( 'Installed Version:', 'woocommerce-beta-tester' ); ?></label>
										</td>
										<td><span class="wcbt-installed-version"><?php echo esc_html( $this->current_version ); ?></span></td>
									</tr>
									<tr>
										<td class="row-title">
											<label for="tablecell"><?php esc_html_e( 'New Version:', 'woocommerce-beta-tester' ); ?></label>
										</td>
										<td><span class="wcbt-new-version"></span></td>
									</tr>
									</tbody>
								</table>
							</div>

							<div class="wcbt-notice">
								<p><?php esc_html_e( 'Notice: We strongly recommend you perform the test on a staging site and create a complete backup of your WordPress files and database prior to performing a rollback. We are not responsible for any misuse, deletions, white screens, fatal errors, or any other issue arising from using this plugin.', 'woocommerce-beta-tester' ); ?></p>
							</div>

							<input type="submit" value="<?php esc_attr_e( 'Switch version', 'woocommerce-beta-tester' ); ?>" class="button-primary wcbt-go" />
							<a href="#" class="button wcbt-close"><?php esc_attr_e( 'Cancel', 'woocommerce-beta-tester' ); ?></a>
						</div>
					</div>
				</form>
			</div>
		</div>
		<?php
	}
}

new WC_Beta_Tester_Version_Picker();