[gnome-boxes] Some wizard steps needs to be reset backward

[Marc-Andre Lureau <malureau src gnome org>]

commit 3546937f1c45908a4da10c323253c6c19465d1d4
Author: Marc-Andrà Lureau <marcandre lureau gmail com>
Date:   Thu Nov 3 19:27:10 2011 +0100

    Some wizard steps needs to be reset backward

 src/wizard.vala |   20 +++++++++++---------
 1 files changed, 11 insertions(+), 9 deletions(-)
---
diff --git a/src/wizard.vala b/src/wizard.vala
index 03c5faa..def2186 100644
--- a/src/wizard.vala
+++ b/src/wizard.vala
@@ -37,17 +37,19 @@ private class Boxes.Wizard: Boxes.UI {
         set {
             var forwards = value > page;
 
-            if (forwards) {
-                switch (value) {
-                case WizardPage.INTRODUCTION:
-                    next_button.sensitive = true;
-                    break;
+            switch (value) {
+            case WizardPage.INTRODUCTION:
+                next_button.sensitive = true;
+                break;
 
-                case WizardPage.SOURCE:
-                    // reset page to notify deeply widgets states
-                    wizard_source.page = wizard_source.page;
-                    break;
+            case WizardPage.SOURCE:
+                // reset page to notify deeply widgets states
+                wizard_source.page = wizard_source.page;
+                break;
+            }
 
+            if (forwards) {
+                switch (value) {
                 case WizardPage.PREPARATION:
                     try {
                         prepare ();