Merge branch 'requirements-checking-segv'

CHANGES

@@ -6,16 +6,29 @@ website will have to do for older versions.
 # 3.2.5 (unreleased) #
 
 This release contains contributions from (alphabetically by first name):
+ - Arnaud Ferraris
+ - Dan Simmons
 
 ## Core ##
 
+ * View modules (in C++) can now perform their own requirements-checking
+   to see if installation makes sense. This expands upon the existing
+   requirements checks in the welcome module (RAM, disk space, ..).
+   The checks have been made asynchronous, so that responsiveness during
+   requirements-checking is improved and the user has better feedback.
+
 ## Modules ##
 
+ * *Partition* module: it is now possible to build without libparted. Since
+   KPMCore may not need this library anymore, it is a dependency that will
+   be dropped as soon as it is feasible. Add `-DCMAKE_DISABLE_FIND_PACKAGE_LIBPARTED=ON`
+   to the CMake flags to do so.
  * Python modules: several modules have had translations added. This is
    usually only visible when the module runs as part of the *exec* step,
    when the module's *pretty name* is displayed. In addition, error
    messages are now translated.
 
+
 # 3.2.4 (2019-02-12) #
 
 This release contains contributions from (alphabetically by first name):

src/libcalamaresui/modulesystem/Requirement.h

@@ -45,14 +45,17 @@ struct RequirementEntry
     /// @brief name of this requirement; not shown to user and used as ID
     QString name;
 
-    /// @brief Description of this requirement, for use in user-visible lists
+    /// @brief Detailed description of this requirement, for use in user-visible lists
     TextFunction enumerationText;
 
-    /// @brief User-visible string to show that the requirement is not met
+    /// @brief User-visible string to show that the requirement is not met, short form
     TextFunction negatedText;
 
     bool satisfied;
     bool mandatory;
+
+    /// @brief Convenience to check if this entry should be shown in details dialog
+    bool hasDetails() const { return !enumerationText().isEmpty(); }
 };
 
 using RequirementsList = QList< RequirementEntry >;

src/modules/welcome/CMakeLists.txt

@@ -16,8 +16,8 @@ include_directories( ${PROJECT_BINARY_DIR}/src/libcalamaresui )
 
 set( CHECKER_SOURCES
     checker/CheckerContainer.cpp
-    checker/CheckerWidget.cpp
-    checker/CheckItemWidget.cpp
+    checker/ResultWidget.cpp
+    checker/ResultsListWidget.cpp
     checker/GeneralRequirements.cpp
     ${PARTMAN_SRC}
 )

src/modules/welcome/checker/CheckerContainer.cpp

@@ -1,7 +1,7 @@
 /* === This file is part of Calamares - <https://github.com/calamares> ===
  *
  *   Copyright 2014-2017, Teo Mrnjavac <teo@kde.org>
- *   Copyright 2017, Adriaan de Groot <groot@kde.org>
+ *   Copyright 2017, 2019, Adriaan de Groot <groot@kde.org>
  *   Copyright 2017, Gabriel Craciunescu <crazy@frugalware.org>
  *
  *   Calamares is free software: you can redistribute it and/or modify
@@ -22,7 +22,7 @@
 
 #include "CheckerContainer.h"
 
-#include "CheckerWidget.h"
+#include "ResultsListWidget.h"
 
 #include "utils/CalamaresUtilsGui.h"
 #include "utils/Logger.h"
@@ -31,8 +31,8 @@
 
 CheckerContainer::CheckerContainer( QWidget* parent )
     : QWidget( parent )
-    , m_waitingWidget( new WaitingWidget( QString() ) )
-    , m_checkerWidget( new CheckerWidget() )
+    , m_waitingWidget( new WaitingWidget( QString(), this ) )
+    , m_checkerWidget( nullptr )
     , m_verdict( false )
 {
     QBoxLayout* mainLayout = new QHBoxLayout;
@@ -40,7 +40,10 @@ CheckerContainer::CheckerContainer(QWidget* parent)
     CalamaresUtils::unmarginLayout( mainLayout );
 
     mainLayout->addWidget( m_waitingWidget );
-    CALAMARES_RETRANSLATE( m_waitingWidget->setText( tr( "Gathering system information..." ) ); )
+    CALAMARES_RETRANSLATE(
+        if ( m_waitingWidget )
+            m_waitingWidget->setText( tr( "Gathering system information..." ) );
+    )
 }
 
 CheckerContainer::~CheckerContainer()
@@ -51,11 +54,13 @@ CheckerContainer::~CheckerContainer()
 
 void CheckerContainer::requirementsComplete( bool ok )
 {
-    m_checkerWidget->init( m_requirements );
+
     layout()->removeWidget( m_waitingWidget );
     m_waitingWidget->deleteLater();
     m_waitingWidget = nullptr;  // Don't delete in destructor
-    m_checkerWidget->setParent( this );
+
+    m_checkerWidget = new ResultsListWidget( this );
+    m_checkerWidget->init( m_requirements );
     layout()->addWidget( m_checkerWidget );
 
     m_verdict = ok;

src/modules/welcome/checker/CheckerContainer.h

@@ -27,7 +27,7 @@
 
 #include "modulesystem/Requirement.h"
 
-class CheckerWidget;
+class ResultsListWidget;
 class WaitingWidget;
 
 /**
@@ -55,7 +55,7 @@ public slots:
 
 protected:
     WaitingWidget *m_waitingWidget;
-    CheckerWidget *m_checkerWidget;
+    ResultsListWidget *m_checkerWidget;
 
     Calamares::RequirementsList m_requirements;
     bool m_verdict;

src/modules/welcome/checker/ResultWidget.cpp

@@ -1,7 +1,7 @@
 /* === This file is part of Calamares - <https://github.com/calamares> ===
  *
  *   Copyright 2014-2015, Teo Mrnjavac <teo@kde.org>
- *   Copyright 2017, Adriaan de Groot <groot@kde.org>
+ *   Copyright 2017, 2019, Adriaan de Groot <groot@kde.org>
  *
  *   Calamares is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -17,7 +17,7 @@
  *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "CheckItemWidget.h"
+#include "ResultWidget.h"
 
 #include "utils/CalamaresUtilsGui.h"
 #include "utils/Logger.h"
@@ -26,12 +26,13 @@
 
 static inline void setCondition( QLabel* label, CalamaresUtils::ImageType t )
 {
-    label->setPixmap( CalamaresUtils::defaultPixmap( t,
+    label->setPixmap(
+        CalamaresUtils::defaultPixmap( t,
                                        CalamaresUtils::Original,
                                        QSize( label->height(), label->height() ) ) );
 }
 
-CheckItemWidget::CheckItemWidget( bool checked,
+ResultWidget::ResultWidget( bool satisfied,
                             bool required,
                             QWidget* parent )
     : QWidget( parent )
@@ -46,11 +47,9 @@ CheckItemWidget::CheckItemWidget( bool checked,
     mainLayout->addWidget( m_textLabel );
     m_textLabel->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Preferred );
 
-    if ( checked )
-        // Condition is satisfied
+    if ( satisfied )
         setCondition( m_iconLabel, CalamaresUtils::StatusOk );
-    else
-        if ( required )
+    else if ( required )
         setCondition( m_iconLabel, CalamaresUtils::StatusError );
     else
         setCondition( m_iconLabel, CalamaresUtils::StatusWarning );
@@ -58,7 +57,7 @@ CheckItemWidget::CheckItemWidget( bool checked,
 
 
 void
-CheckItemWidget::setText( const QString& text )
+ResultWidget::setText( const QString& text )
 {
     m_textLabel->setText( text );
 }

src/modules/welcome/checker/ResultWidget.h

@@ -1,7 +1,7 @@
 /* === This file is part of Calamares - <https://github.com/calamares> ===
  *
  *   Copyright 2014-2015, Teo Mrnjavac <teo@kde.org>
- *   Copyright 2017, Adriaan de Groot <groot@kde.org>
+ *   Copyright 2017, 2019, Adriaan de Groot <groot@kde.org>
  *
  *   Calamares is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -17,22 +17,35 @@
  *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef CHECKITEMWIDGET_H
-#define CHECKITEMWIDGET_H
+#ifndef CHECKER_RESULTWIDGET_H
+#define CHECKER_RESULTWIDGET_H
 
 #include <QLabel>
 
-class CheckItemWidget : public QWidget
+/**
+ * @brief Displays the results of a single check.
+ *
+ * Widget to insert into a ResultListWidget to display an iconic status
+ * (warning or failure when the check is not satisfied) along with
+ * descriptive test.
+ */
+class ResultWidget : public QWidget
 {
     Q_OBJECT
 public:
-    explicit CheckItemWidget( bool checked, bool required,
+    /**
+     * @brief Create widget with results of a check.
+     *
+     * Use setText() to set up the text of the widget.
+     */
+    explicit ResultWidget( bool satisfied, bool required,
                            QWidget* parent = nullptr );
 
+    /// @brief Set the displayed description of the check.
     void setText( const QString& text );
 private:
     QLabel* m_textLabel;
     QLabel* m_iconLabel;
 };
 
-#endif // CHECKITEMWIDGET_H
+#endif // CHECKER_RESULTWIDGET_H

src/modules/welcome/checker/ResultsListWidget.cpp

@@ -1,7 +1,7 @@
 /* === This file is part of Calamares - <https://github.com/calamares> ===
  *
  *   Copyright 2014-2015, Teo Mrnjavac <teo@kde.org>
- *   Copyright 2017, Adriaan de Groot <groot@kde.org>
+ *   Copyright 2017, 2019, Adriaan de Groot <groot@kde.org>
  *
  *   Calamares is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -17,9 +17,9 @@
  *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "CheckerWidget.h"
+#include "ResultsListWidget.h"
 
-#include "CheckItemWidget.h"
+#include "ResultWidget.h"
 
 #include "Branding.h"
 #include "utils/CalamaresUtilsGui.h"
@@ -33,7 +33,7 @@
 #include <QLabel>
 
 
-CheckerWidget::CheckerWidget( QWidget* parent )
+ResultsListWidget::ResultsListWidget( QWidget* parent )
     : QWidget( parent )
 {
     setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );
@@ -53,7 +53,7 @@ CheckerWidget::CheckerWidget( QWidget* parent )
 
 
 void
-CheckerWidget::init( const Calamares::RequirementsList& checkEntries )
+ResultsListWidget::init( const Calamares::RequirementsList& checkEntries )
 {
     bool allChecked = true;
     bool requirementsSatisfied = true;
@@ -62,16 +62,14 @@ CheckerWidget::init( const Calamares::RequirementsList& checkEntries )
     {
         if ( !entry.satisfied )
         {
-            CheckItemWidget* ciw = new CheckItemWidget( entry.satisfied, entry.mandatory );
+            ResultWidget* ciw = new ResultWidget( entry.satisfied, entry.mandatory );
             CALAMARES_RETRANSLATE( ciw->setText( entry.negatedText() ); )
             m_entriesLayout->addWidget( ciw );
             ciw->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Preferred );
 
             allChecked = false;
             if ( entry.mandatory )
-            {
                 requirementsSatisfied = false;
-            }
             ciw->setAutoFillBackground( true );
             QPalette pal( ciw->palette() );
             pal.setColor( QPalette::Background, Qt::white );
@@ -155,14 +153,12 @@ CheckerWidget::init( const Calamares::RequirementsList& checkEntries )
         )
     }
     else
-    {
         m_mainLayout->addStretch();
 }
-}
 
 
 void
-CheckerWidget::showDetailsDialog( const Calamares::RequirementsList& checkEntries )
+ResultsListWidget::showDetailsDialog( const Calamares::RequirementsList& checkEntries )
 {
     QDialog* detailsDialog = new QDialog( this );
     QBoxLayout* mainLayout = new QVBoxLayout;
@@ -179,10 +175,10 @@ CheckerWidget::showDetailsDialog( const Calamares::RequirementsList& checkEntrie
 
     for ( const auto& entry : checkEntries )
     {
-        if ( entry.enumerationText().isEmpty() )
+        if ( !entry.hasDetails() )
             continue;
 
-        CheckItemWidget* ciw = new CheckItemWidget( entry.satisfied, entry.mandatory );
+        ResultWidget* ciw = new ResultWidget( entry.satisfied, entry.mandatory );
         CALAMARES_RETRANSLATE( ciw->setText( entry.enumerationText() ); )
         entriesLayout->addWidget( ciw );
         ciw->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Preferred );

src/modules/welcome/checker/ResultsListWidget.h

@@ -1,6 +1,7 @@
 /* === This file is part of Calamares - <https://github.com/calamares> ===
  *
  *   Copyright 2014-2015, Teo Mrnjavac <teo@kde.org>
+ *   Copyright 2019, Adriaan de Groot <groot@kde.org>
  *
  *   Calamares is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -16,19 +17,19 @@
  *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef CHECKERWIDGET_H
-#define CHECKERWIDGET_H
+#ifndef CHECKER_RESULTSLISTWIDGET_H
+#define CHECKER_RESULTSLISTWIDGET_H
 
 #include "modulesystem/Requirement.h"
 
 #include <QBoxLayout>
 #include <QWidget>
 
-class CheckerWidget : public QWidget
+class ResultsListWidget : public QWidget
 {
     Q_OBJECT
 public:
-    explicit CheckerWidget( QWidget* parent = nullptr );
+    explicit ResultsListWidget( QWidget* parent = nullptr );
 
     void init( const Calamares::RequirementsList& checkEntries );
 
@@ -40,4 +41,4 @@ private:
     int m_paddingSize;
 };
 
-#endif // CHECKERWIDGET_H
+#endif // CHECKER_RESULTSLISTWIDGET_H