From 5c866c2ca0b49ab0819ad9d542e32a4e31a4b152 Mon Sep 17 00:00:00 2001
From: Rastislav Wagner <rawagner@redhat.com>
Date: Fri, 10 Aug 2018 12:36:24 +0200
Subject: [PATCH] Allow disabling back button in Wizard.Pattern. Fixes #527

---
 .../Wizard/Patterns/WizardPattern.js           | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/packages/patternfly-react/src/components/Wizard/Patterns/WizardPattern.js b/packages/patternfly-react/src/components/Wizard/Patterns/WizardPattern.js
index b1300eb2d59..e013f21f846 100644
--- a/packages/patternfly-react/src/components/Wizard/Patterns/WizardPattern.js
+++ b/packages/patternfly-react/src/components/Wizard/Patterns/WizardPattern.js
@@ -14,6 +14,7 @@ const WizardPattern = ({
   onNext,
   onBack,
   nextStepDisabled,
+  backStepDisabled,
   title,
   loadingTitle,
   loadingMessage,
@@ -80,19 +81,20 @@ const WizardPattern = ({
     const preventEnterTarget =
       targetStep.preventEnter ||
       (stepBeforeTarget && stepBeforeTarget.isInvalid);
-    const nextStepClicked = newStepIndex === activeStepIndex + 1;
+    const nextStepClicked = newStepIndex > activeStepIndex;
 
-    return (
-      preventExitActive ||
-      preventEnterTarget ||
-      (nextStepClicked && nextStepDisabled)
-    );
+    return preventExitActive || preventEnterTarget || nextStepClicked
+      ? nextStepDisabled
+      : backStepDisabled;
   };
 
   const activeStepStr = (activeStepIndex + 1).toString();
 
   const prevStepUnreachable =
-    onFirstStep || activeStep.preventExit || getPrevStep().preventEnter;
+    backStepDisabled ||
+    onFirstStep ||
+    activeStep.preventExit ||
+    getPrevStep().preventEnter;
   // nextStepUnreachable is still true onFinalStep, because the Next button turns into a Close button
   const nextStepUnreachable =
     nextStepDisabled ||
@@ -168,6 +170,7 @@ WizardPattern.propTypes = {
   closeText: PropTypes.string,
   steps: PropTypes.arrayOf(PropTypes.shape(wizardStepShape)),
   nextStepDisabled: PropTypes.bool,
+  backStepDisabled: PropTypes.bool,
   stepButtonsDisabled: PropTypes.bool,
   nextButtonRef: PropTypes.func,
   bodyHeader: PropTypes.node,
@@ -191,6 +194,7 @@ WizardPattern.defaultProps = {
   closeText: 'Close',
   steps: [],
   nextStepDisabled: false,
+  backStepDisabled: false,
   stepButtonsDisabled: false,
   nextButtonRef: noop,
   bodyHeader: null,