Add gravity flow demo

backend/wordpress/wp-content/plugins/wp-mail-smtp/src/WP.php

@@ -0,0 +1,140 @@
+<?php
+
+namespace WPMailSMTP;
+
+/**
+ * Class WP provides WordPress shortcuts.
+ *
+ * @since 1.0.0
+ */
+class WP {
+
+	/**
+	 * The "queue" of notices.
+	 *
+	 * @var array
+	 */
+	protected static $admin_notices = array();
+	/**
+	 * @var string
+	 */
+	const ADMIN_NOTICE_SUCCESS = 'notice-success';
+	/**
+	 * @var string
+	 */
+	const ADMIN_NOTICE_ERROR = 'notice-error';
+	/**
+	 * @var string
+	 */
+	const ADMIN_NOTICE_INFO = 'notice-info';
+	/**
+	 * @var string
+	 */
+	const ADMIN_NOTICE_WARNING = 'notice-warning';
+
+	/**
+	 * True is WP is processing an AJAX call.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @return bool
+	 */
+	public static function is_doing_ajax() {
+
+		if ( function_exists( 'wp_doing_ajax' ) ) {
+			return wp_doing_ajax();
+		}
+
+		return ( defined( 'DOING_AJAX' ) && DOING_AJAX );
+	}
+
+	/**
+	 * True if I am in the Admin Panel, not doing AJAX.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @return bool
+	 */
+	public static function in_wp_admin() {
+		return ( is_admin() && ! self::is_doing_ajax() );
+	}
+
+	/**
+	 * Add a notice to the "queue of notices".
+	 *
+	 * @since 1.0.0
+	 *
+	 * @param string $message Message text (HTML is OK).
+	 * @param string $class Display class (severity).
+	 */
+	public static function add_admin_notice( $message, $class = self::ADMIN_NOTICE_INFO ) {
+
+		self::$admin_notices[] = array(
+			'message' => $message,
+			'class'   => $class,
+		);
+	}
+
+	/**
+	 * Display all notices.
+	 *
+	 * @since 1.0.0
+	 */
+	public static function display_admin_notices() {
+
+		foreach ( (array) self::$admin_notices as $notice ) : ?>
+
+			<div id="message" class="<?php echo esc_attr( $notice['class'] ); ?> notice is-dismissible">
+				<p>
+					<?php echo $notice['message']; ?>
+				</p>
+			</div>
+
+			<?php
+		endforeach;
+	}
+
+	/**
+	 * Check whether WP_DEBUG is active.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @return bool
+	 */
+	public static function is_debug() {
+		return defined( 'WP_DEBUG' ) && WP_DEBUG;
+	}
+
+	/**
+	 * Shortcut to global $wpdb.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @return \wpdb
+	 */
+	public static function wpdb() {
+
+		global $wpdb;
+
+		return $wpdb;
+	}
+
+	/**
+	 * Get the postfix for assets files - ".min" or empty.
+	 * ".min" if in production mode.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @return string
+	 */
+	public static function asset_min() {
+
+		$min = '.min';
+
+		if ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) {
+			$min = '';
+		}
+
+		return $min;
+	}
+}