FinishedPage: don't reboot on failure

If installation fails, and you end up on the last page, suppress the
reboot-now checkbox.

FIXES #605

src/modules/finished/FinishedPage.cpp

@@ -39,6 +39,7 @@ FinishedPage::FinishedPage( QWidget* parent )
     , ui( new Ui::FinishedPage )
     , m_restartSetUp( false )
 {
+    cDebug() << "FinishedPage()";
     ui->setupUi( this );
 
     ui->mainText->setAlignment( Qt::AlignCenter );
@@ -83,6 +84,7 @@ FinishedPage::setRestartNowCommand( const QString& command )
 void
 FinishedPage::setUpRestart()
 {
+    cDebug() << "FinishedPage::setUpRestart()";
     if ( !m_restartSetUp )
     {
         connect( qApp, &QApplication::aboutToQuit,
@@ -102,3 +104,14 @@ FinishedPage::focusInEvent( QFocusEvent* e )
     e->accept();
 }
 
+void
+FinishedPage::onInstallationFailed( const QString& message, const QString& details )
+{
+    ui->mainText->setText( tr( "<h1>Installation Failed</h1><br/>"
+                             "%1 has not been installed on your computer.<br/>"
+                             "The error message was: %2." )
+                        .arg(Calamares::Branding::instance()->
+                               string( Calamares::Branding::VersionedName ) )
+                        .arg( details ) );
+    setRestartNowEnabled( false );
+}

src/modules/finished/FinishedPage.h

@@ -38,6 +38,9 @@ public:
 
     void setUpRestart();
 
+public slots:
+    void onInstallationFailed( const QString& message, const QString& details );
+
 protected:
     void focusInEvent( QFocusEvent* e ) override; //choose the child widget to focus
 

src/modules/finished/FinishedViewStep.cpp

@@ -17,8 +17,10 @@
  */
 
 #include "FinishedViewStep.h"
-
 #include "FinishedPage.h"
+#include "JobQueue.h"
+
+#include "utils/Logger.h"
 
 #include <QVariantMap>
 
@@ -26,6 +28,11 @@ FinishedViewStep::FinishedViewStep( QObject* parent )
     : Calamares::ViewStep( parent )
     , m_widget( new FinishedPage() )
 {
+    cDebug() << "FinishedViewStep()";
+
+    connect( Calamares::JobQueue::instance(), &Calamares::JobQueue::failed,
+            m_widget, &FinishedPage::onInstallationFailed );
+
     emit nextStatusChanged( true );
 }
 
@@ -47,6 +54,7 @@ FinishedViewStep::prettyName() const
 QWidget*
 FinishedViewStep::widget()
 {
+    cDebug() << "FinishedViewStep::widget()";
     return m_widget;
 }
 
@@ -94,6 +102,7 @@ FinishedViewStep::isAtEnd() const
 void
 FinishedViewStep::onActivate()
 {
+    cDebug() << "FinishedViewStep::onActivate()";
     m_widget->setUpRestart();
 }
 
@@ -101,6 +110,7 @@ FinishedViewStep::onActivate()
 QList< Calamares::job_ptr >
 FinishedViewStep::jobs() const
 {
+    cDebug() << "FinishedViewStep::jobs";
     return QList< Calamares::job_ptr >();
 }