[summary] Improve naming, shuffle parameters

- the page doesn't need to remember what step it belongs to,
  if the step tells it when creating widgets.
- detach naming from the viewstep API that calls it.

src/modules/summary/SummaryPage.cpp

@@ -27,18 +27,15 @@
 #include <QLabel>
 #include <QScrollArea>
 
-SummaryPage::SummaryPage( Config* config, const SummaryViewStep* thisViewStep, QWidget* parent )
+SummaryPage::SummaryPage( Config* config, QWidget* parent )
     : QWidget()
-    , m_thisViewStep( thisViewStep )
     , m_contentWidget( nullptr )
     , m_scrollArea( new QScrollArea( this ) )
 {
     Q_UNUSED( parent )
 
-
     this->setObjectName( "summaryStep" );
 
-    Q_ASSERT( m_thisViewStep );
     QVBoxLayout* layout = new QVBoxLayout( this );
     layout->setContentsMargins( 0, 0, 0, 0 );
 
@@ -85,7 +82,7 @@ createBodyLabel( const QString& text, const QPalette& bodyPalette )
 // Adds a widget for those ViewSteps that want a summary;
 // see SummaryPage documentation and also ViewStep docs.
 void
-SummaryPage::onActivate()
+SummaryPage::buildWidgets( Config* config, SummaryViewStep* viewstep )
 {
     const int SECTION_SPACING = 12;
 
@@ -102,7 +99,7 @@ SummaryPage::onActivate()
     bodyPalette.setColor( WindowBackground, palette().window().color().lighter( 108 ) );
 
     bool first = true;
-    const Calamares::ViewStepList steps = stepsForSummary( Calamares::ViewManager::instance()->viewSteps() );
+    const Calamares::ViewStepList steps = stepsForSummary( Calamares::ViewManager::instance()->viewSteps(), viewstep );
 
     for ( Calamares::ViewStep* step : steps )
     {
@@ -151,12 +148,12 @@ SummaryPage::onActivate()
 
         cDebug() << "Summary widget is larger than viewport, enlarge by" << enlarge << "to" << widgetSize;
 
-        emit m_thisViewStep->ensureSize( widgetSize );  // Only expand height
+        emit viewstep->ensureSize( widgetSize );  // Only expand height
     }
 }
 
 Calamares::ViewStepList
-SummaryPage::stepsForSummary( const Calamares::ViewStepList& allSteps ) const
+SummaryPage::stepsForSummary( const Calamares::ViewStepList& allSteps, SummaryViewStep* viewstep ) const
 {
     Calamares::ViewStepList steps;
     for ( Calamares::ViewStep* step : allSteps )
@@ -173,7 +170,7 @@ SummaryPage::stepsForSummary( const Calamares::ViewStepList& allSteps ) const
 
         // If we reach the parent step of this page, we're done collecting the list of
         // steps to summarize.
-        if ( m_thisViewStep == step )
+        if ( viewstep == step )
         {
             break;
         }
@@ -185,7 +182,7 @@ SummaryPage::stepsForSummary( const Calamares::ViewStepList& allSteps ) const
 }
 
 void
-SummaryPage::onLeave()
+SummaryPage::cleanup()
 {
     delete m_contentWidget;
     m_contentWidget = nullptr;

src/modules/summary/SummaryPage.h

@@ -45,22 +45,19 @@ class SummaryPage : public QWidget
 {
     Q_OBJECT
 public:
-    explicit SummaryPage( Config* config, const SummaryViewStep* thisViewStep, QWidget* parent = nullptr );
+    explicit SummaryPage( Config* config, QWidget* parent = nullptr );
 
     /// @brief Create contents showing all of the summary
-    void onActivate();
+    void buildWidgets( Config* config, SummaryViewStep* viewstep );
     /// @brief Clean up the widgets
-    void onLeave();
+    void cleanup();
 
 private:
-    Calamares::ViewStepList stepsForSummary( const Calamares::ViewStepList& allSteps ) const;
-
-    const SummaryViewStep* m_thisViewStep;
+    Calamares::ViewStepList stepsForSummary( const Calamares::ViewStepList& allSteps, SummaryViewStep* viewstep ) const;
 
     QVBoxLayout* m_layout = nullptr;
     QWidget* m_contentWidget = nullptr;
-
-    QScrollArea* m_scrollArea;
+    QScrollArea* m_scrollArea = nullptr;
 };
 
 #endif  // SUMMARYPAGE_H

src/modules/summary/SummaryViewStep.cpp

@@ -16,7 +16,7 @@ CALAMARES_PLUGIN_FACTORY_DEFINITION( SummaryViewStepFactory, registerPlugin< Sum
 SummaryViewStep::SummaryViewStep( QObject* parent )
     : Calamares::ViewStep( parent )
     , m_config( new Config( this ) )
-    , m_widget( new SummaryPage( m_config, this ) )
+    , m_widget( new SummaryPage( m_config ) )
 {
     emit nextStatusChanged( true );
 }
@@ -85,7 +85,7 @@ void
 SummaryViewStep::onActivate()
 {
     m_config->collectSummaries( this, Config::Widgets::Enabled );
-    m_widget->onActivate();
+    m_widget->buildWidgets( m_config, this );
 }
 
 
@@ -93,5 +93,5 @@ void
 SummaryViewStep::onLeave()
 {
     m_config->clearSummaries();
-    m_widget->onLeave();
+    m_widget->cleanup();
 }