Merge branch 'issue-1098'

- Doesn't fix the issue, but adds useful things I want in master
   already, also for debugging other issues.

src/modules/partition/core/PartUtils.cpp

@@ -43,6 +43,25 @@
 namespace PartUtils
 {
 
+static QString
+convenienceName( const Partition* const candidate )
+{
+    if ( !candidate->mountPoint().isEmpty() )
+        return candidate->mountPoint();
+    if ( !candidate->partitionPath().isEmpty() )
+        return candidate->partitionPath();
+    if ( !candidate->devicePath().isEmpty() )
+        return candidate->devicePath();
+    if ( !candidate->deviceNode().isEmpty() )
+        return candidate->devicePath();
+
+    QString p;
+    QTextStream s( &p );
+    s << (void *)candidate;
+
+    return p;
+}
+
 bool
 canBeReplaced( Partition* candidate )
 {
@@ -64,12 +83,12 @@ canBeReplaced( Partition* candidate )
              << QString( "(%1GB)" ).arg( requiredStorageB / 1024 / 1024 / 1024 );
     cDebug() << "Storage capacity  B:" << availableStorageB
              << QString( "(%1GB)" ).arg( availableStorageB / 1024 / 1024 / 1024 )
-             << "for" << candidate->partitionPath() << "   length:" << candidate->length();
+             << "for" << convenienceName( candidate ) << "   length:" << candidate->length();
 
     if ( ok &&
          availableStorageB > requiredStorageB )
     {
-        cDebug() << "Partition" << candidate->partitionPath() << "authorized for replace install.";
+        cDebug() << "Partition" << convenienceName( candidate ) << "authorized for replace install.";
 
         return true;
     }
@@ -86,7 +105,7 @@ canBeResized( Partition* candidate )
         return false;
     }
 
-    cDebug() << "Checking if" << candidate->partitionPath() << "can be resized.";
+    cDebug() << "Checking if" << convenienceName( candidate ) << "can be resized.";
     if ( !candidate->fileSystem().supportGrow() ||
          !candidate->fileSystem().supportShrink() )
     {
@@ -140,13 +159,13 @@ canBeResized( Partition* candidate )
              << QString( "(%1GB)" ).arg( advisedStorageGB );
     cDebug() << "Available storage B:" << availableStorageB
              << QString( "(%1GB)" ).arg( availableStorageB / 1024 / 1024 / 1024 )
-             << "for" << candidate->partitionPath() << "   length:" << candidate->length()
+             << "for" << convenienceName( candidate ) << "   length:" << candidate->length()
              << "   sectorsUsed:" << candidate->sectorsUsed() << "   fsType:" << candidate->fileSystem().name();
 
     if ( ok &&
          availableStorageB > advisedStorageB )
     {
-        cDebug() << "Partition" << candidate->partitionPath() << "authorized for resize + autopartition install.";
+        cDebug() << "Partition" << convenienceName( candidate ) << "authorized for resize + autopartition install.";
 
         return true;
     }
@@ -382,7 +401,7 @@ isEfiSystem()
 bool
 isEfiBootable( const Partition* candidate )
 {
-    cDebug() << "Check EFI bootable" << candidate->partitionPath() << candidate->devicePath();
+    cDebug() << "Check EFI bootable" << convenienceName( candidate ) << candidate->devicePath();
     cDebug() << " .. flags" << candidate->activeFlags();
 
     auto flags = PartitionInfo::flags( candidate );

src/modules/partition/core/PartitionCoreModule.h

@@ -154,6 +154,9 @@ public:
 
     void setPartitionFlags( Device* device, Partition* partition, PartitionTable::Flags flags );
 
+    /// @brief Retrieve the path where the bootloader will be installed
+    QString bootLoaderInstallPath() const { return m_bootLoaderInstallPath; }
+    /// @brief Set the path where the bootloader will be installed
     void setBootLoaderInstallPath( const QString& path );
 
     void initLayout();

src/modules/partition/gui/PartitionPage.cpp

@@ -56,7 +56,6 @@
 #include <kpmcore/ops/removevolumegroupoperation.h>
 
 // Qt
-#include <QDebug>
 #include <QHeaderView>
 #include <QItemSelectionModel>
 #include <QMessageBox>
@@ -90,22 +89,9 @@ PartitionPage::PartitionPage( PartitionCoreModule* core, QWidget* parent )
 
     updateFromCurrentDevice();
 
-    connect( m_ui->deviceComboBox, &QComboBox::currentTextChanged,
-             [ this ]( const QString& /* text */ )
-    {
-        updateFromCurrentDevice();
-    } );
-    connect( m_ui->bootLoaderComboBox, static_cast<void(QComboBox::*)(const QString &)>(&QComboBox::activated),
-                [ this ]( const QString& /* text */ )
-    {
-        m_lastSelectedBootLoaderIndex = m_ui->bootLoaderComboBox->currentIndex();
-    } );
-
-    connect( m_ui->bootLoaderComboBox, &QComboBox::currentTextChanged,
-             [ this ]( const QString& /* text */ )
-    {
-        updateBootLoaderInstallPath();
-    } );
+    connect( m_ui->deviceComboBox, &QComboBox::currentTextChanged, this, &PartitionPage::updateFromCurrentDevice );
+    connect( m_ui->bootLoaderComboBox, QOverload<int>::of(&QComboBox::activated), this, &PartitionPage::updateSelectedBootLoaderIndex );
+    connect( m_ui->bootLoaderComboBox, &QComboBox::currentTextChanged, this, &PartitionPage::updateBootLoaderInstallPath );
 
     connect( m_core, &PartitionCoreModule::isDirtyChanged, m_ui->revertButton, &QWidget::setEnabled );
 
@@ -376,18 +362,18 @@ PartitionPage::onCreateClicked()
     if ( !checkCanCreate( model->device() ) )
         return;
 
-    QPointer< CreatePartitionDialog > dlg = new CreatePartitionDialog( model->device(),
-                                                                       partition->parent(),
-                                                                       nullptr,
-                                                                       getCurrentUsedMountpoints(),
-                                                                       this );
-    dlg->initFromFreeSpace( partition );
-    if ( dlg->exec() == QDialog::Accepted )
+    CreatePartitionDialog dlg(
+        model->device(),
+        partition->parent(),
+        nullptr,
+        getCurrentUsedMountpoints(),
+        this );
+    dlg.initFromFreeSpace( partition );
+    if ( dlg.exec() == QDialog::Accepted )
     {
-        Partition* newPart = dlg->createPartition();
-        m_core->createPartition( model->device(), newPart, dlg->newFlags() );
+        Partition* newPart = dlg.createPartition();
+        m_core->createPartition( model->device(), newPart, dlg.newFlags() );
     }
-    delete dlg;
 }
 
 void
@@ -508,10 +494,17 @@ PartitionPage::updateBootLoaderInstallPath()
     QVariant var = m_ui->bootLoaderComboBox->currentData( BootLoaderModel::BootLoaderPathRole );
     if ( !var.isValid() )
         return;
-    qDebug() << "PartitionPage::updateBootLoaderInstallPath" << var.toString();
+    cDebug() << "PartitionPage::updateBootLoaderInstallPath" << var.toString();
     m_core->setBootLoaderInstallPath( var.toString() );
 }
 
+void
+PartitionPage::updateSelectedBootLoaderIndex()
+{
+    m_lastSelectedBootLoaderIndex = m_ui->bootLoaderComboBox->currentIndex();
+    cDebug() << "Selected bootloader index" << m_lastSelectedBootLoaderIndex;
+}
+
 void
 PartitionPage::updateFromCurrentDevice()
 {

src/modules/partition/gui/PartitionPage.h

@@ -50,6 +50,14 @@ public:
     int selectedDeviceIndex();
     void selectDeviceByIndex( int index );
 
+private slots:
+    /// @brief Update everything when the base device changes
+    void updateFromCurrentDevice();
+    /// @brief Update when the selected device for boot loader changes
+    void updateBootLoaderInstallPath();
+    /// @brief Explicitly selected boot loader path
+    void updateSelectedBootLoaderIndex();
+
 private:
     QScopedPointer< Ui_PartitionPage > m_ui;
     PartitionCoreModule* m_core;
@@ -67,8 +75,6 @@ private:
 
     void updatePartitionToCreate( Device*, Partition* );
     void editExistingPartition( Device*, Partition* );
-    void updateBootLoaderInstallPath();
-    void updateFromCurrentDevice();
     void updateBootLoaderIndex();
 
     /**