plugin install

wp/wp-content/plugins/gravityforms/includes/wizard/class-gf-upgrade-wizard.php

@@ -0,0 +1,91 @@
+<?php
+
+if ( ! class_exists( 'GFForms' ) ) {
+	die();
+}
+
+class GF_Upgrade_Wizard {
+	private $_step_class_names = array();
+
+	function __construct(){
+
+	}
+
+	public function display(){
+		//not implemented
+		return false;
+	}
+/*
+	public function display(){
+
+		// register admin styles
+		wp_print_styles( array( 'jquery-ui-styles', 'gform_admin' ) );
+
+		?>
+
+		<div class="wrap about-wrap gform_installation_progress_step_wrap">
+
+			<h1><?php esc_html_e( 'Gravity Forms Upgrade', 'gravityforms' ) ?></h1>
+
+			<hr/>
+
+			<h2><?php esc_html_e( 'Database Update Required', 'gravityforms' ); ?></h2>
+
+			<p><?php esc_html_e( 'Gravity Forms has been updated! Before we send you on your way, we have to update your database to the newest version.', 'gravityforms' ); ?></p>
+			<p><?php esc_html_e( 'The database update process may take a little while, so please be patient.', 'gravityforms' ); ?></p>
+
+			<input class="button button-primary" type="submit" value="<?php esc_attr_e( 'Upgrade', 'gravityforms' ) ?>" name="_upgrade"/>
+
+			<script type="text/javascript">
+
+				function gform_start_upgrade(){
+
+					gform_message( 'Progress: 0%' );
+
+					//TODO: implement AJAX callbacks for manual upgrade
+
+					jQuery.post(ajaxurl, {
+						action			: "gf_upgrade",
+						gf_upgrade		: '<?php echo wp_create_nonce( 'gf_upgrade' ); ?>',
+					})
+					.done(function( data ) {
+						gform_success_message();
+					})
+
+					setTimeout( 'gform_check_upgrade_status', 1000 );
+
+				}
+
+				function gform_check_upgrade_status(){
+
+					jQuery.post(ajaxurl, {
+						action				: "gf_check_upgrade_status",
+						gf_upgrade_status	: '<?php echo wp_create_nonce( 'gf_upgrade_status' ); ?>',
+					})
+					.done(function( data ) {
+						if( data == '100' ){
+							gform_success_message();
+						}
+						else{
+							gform_message( 'Progress: ' + parseInt( data ) + '%' );
+						}
+					})
+
+				}
+
+				function gform_message( message ){
+					jQuery( '#gform_upgrade_message' ).html( message );
+				}
+
+				function gform_success_message(){
+					gform_message( 'Database upgrade complete' );
+				}
+			</script>
+		</div>
+
+	<?php
+
+		return true;
+	}
+*/
+}