[libcalamaresui] Register Global Storage (as 'Global') for QML

src/libcalamares/GlobalStorage.h

@@ -39,12 +39,8 @@ public:
 
     //NOTE: thread safety is guaranteed by JobQueue, which executes jobs one by one.
     //      If at any time jobs become concurrent, this class must be made thread-safe.
-    bool contains( const QString& key ) const;
-    int count() const;
     void insert( const QString& key, const QVariant& value );
-    QStringList keys() const;
     int remove( const QString& key );
-    QVariant value( const QString& key ) const;
 
     /// @brief dump keys and values to the debug log
     void debugDump() const;
@@ -83,6 +79,12 @@ public:
      */
     const QVariantMap& data() const { return m; }
 
+public Q_SLOTS:
+    bool contains( const QString& key ) const;
+    int count() const;
+    QStringList keys() const;
+    QVariant value( const QString& key ) const;
+
 signals:
     void changed();
 

src/libcalamaresui/utils/Qml.cpp

@@ -19,6 +19,8 @@
 #include "Qml.h"
 
 #include "Branding.h"
+#include "GlobalStorage.h"
+#include "JobQueue.h"
 #include "ViewManager.h"
 #include "utils/Logger.h"
 
@@ -164,6 +166,10 @@ registerCalamaresModels()
             "io.calamares.core", 1, 0, "ViewManager", []( QQmlEngine*, QJSEngine* ) -> QObject* {
                 return Calamares::ViewManager::instance();
             } );
+        qmlRegisterSingletonType< Calamares::GlobalStorage >(
+            "io.calamares.core", 1, 0, "Global", []( QQmlEngine*, QJSEngine* ) -> QObject* {
+                return Calamares::JobQueue::instance()->globalStorage();
+            } );
     }
 }
 

src/libcalamaresui/utils/Qml.h

@@ -36,6 +36,7 @@ namespace CalamaresUtils
  * The following objects are made available globally:
  *  - `io.calamares.ui.Branding` (an object, see Branding.h)
  *  - `io.calamares.core.ViewManager` (a model, see ViewManager.h)
+ *  - `io.calamares.core.Global` (an object, see GlobalStorage.h)
  * Additionally, modules based on QmlViewStep have a context
  * property `config` referring to that module's configuration (if any).
  */