Phase 3: Page Templates - Homepage, About, Contact, Blog, Search, Full-width, Landing templates with reusable components

wp-content/plugins/contact-form-7/includes/swv/php/rules/stepnumber.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Contactable\SWV;
+
+class StepNumberRule extends Rule {
+
+	const rule_name = 'stepnumber';
+
+	public function matches( $context ) {
+		if ( false === parent::matches( $context ) ) {
+			return false;
+		}
+
+		if ( empty( $context['text'] ) ) {
+			return false;
+		}
+
+		return true;
+	}
+
+	public function validate( $context ) {
+		$input = $this->get_default_input();
+		$input = wpcf7_array_flatten( $input );
+		$input = wpcf7_strip_whitespaces( $input );
+		$input = wpcf7_exclude_blank( $input );
+
+		$base = floatval( $this->get_property( 'base' ) );
+		$interval = floatval( $this->get_property( 'interval' ) );
+
+		if ( ! ( 0 < $interval ) ) {
+			return true;
+		}
+
+		foreach ( $input as $i ) {
+			$remainder = fmod( floatval( $i ) - $base, $interval );
+
+			if (
+				0.0 === round( abs( $remainder ), 6 ) or
+				0.0 === round( abs( $remainder - $interval ), 6 )
+			) {
+				continue;
+			}
+
+			return $this->create_error();
+		}
+
+		return true;
+	}
+
+}