experiment for a declarative config skeleton

maps a KConfigSkeleton to a QQmlPropertyMap, allowing a "declarative" use of configs

not sure will be an efficient approach enough but it seems to work correctly

src/scriptengines/qml/CMakeLists.txt

@@ -13,6 +13,7 @@ include_directories(${KDE4_INCLUDE_DIR}/KDE ${PHONON_INCLUDES} ${CMAKE_CURRENT_S
 
 #DECLARATIVE APPLET
 set(declarative_appletscript_SRCS
+    declarative/configpropertymap.cpp
     declarative/packageaccessmanager.cpp
     declarative/packageaccessmanagerfactory.cpp
     declarative/qmlobject.cpp

src/scriptengines/qml/declarative/configpropertymap.cpp

@@ -0,0 +1,84 @@
+/*
+ *   Copyright 2013 Marco Martin <notmart@gmail.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License as
+ *   published by the Free Software Foundation; either version 2, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "configpropertymap.h"
+
+#include <QDebug>
+
+#include <KConfigSkeletonItem>
+
+
+ConfigPropertyMap::ConfigPropertyMap(KConfigSkeleton *config, QObject *parent)
+    : QQmlPropertyMap(parent),
+      m_config(config)
+{
+    connect(config, &KConfigSkeleton::configChanged,
+            this, &ConfigPropertyMap::loadConfig);
+    connect(this, &ConfigPropertyMap::valueChanged,
+            this, &ConfigPropertyMap::writeConfigValue);
+
+    loadConfig();
+}
+
+ConfigPropertyMap::~ConfigPropertyMap()
+{
+    writeConfig();
+}
+
+void ConfigPropertyMap::loadConfig()
+{
+    if (!m_config) {
+        return;
+    }
+
+    foreach (KConfigSkeletonItem *item, m_config.data()->items()) {
+        insert(item->key(), item->property());
+    }
+}
+
+void ConfigPropertyMap::writeConfig()
+{
+    if (!m_config) {
+        return;
+    }
+
+    foreach (KConfigSkeletonItem *item, m_config.data()->items()) {
+        item->setProperty(value(item->key()));
+    }
+
+    m_config.data()->blockSignals(true);
+    m_config.data()->writeConfig();
+    m_config.data()->blockSignals(false);
+}
+
+void ConfigPropertyMap::writeConfigValue(const QString &key, const QVariant &value)
+{
+    KConfigSkeletonItem *item = m_config.data()->findItem(key);
+    if (item) {
+        item->setProperty(value);
+        m_config.data()->blockSignals(true);
+        m_config.data()->writeConfig();
+        m_config.data()->blockSignals(false);
+    }
+}
+
+#include "moc_configpropertymap.cpp"
+
+
+

src/scriptengines/qml/declarative/configpropertymap.h

@@ -0,0 +1,45 @@
+/*
+ *   Copyright 2013 Marco Martin <notmart@gmail.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License as
+ *   published by the Free Software Foundation; either version 2, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef CONFIGPROPERTYMAP_P
+#define CONFIGPROPERTYMAP_P
+
+#include <QQmlPropertyMap>
+
+#include <KConfigSkeleton>
+
+
+class ConfigPropertyMap : public QQmlPropertyMap
+{
+    Q_OBJECT
+
+public:
+    ConfigPropertyMap(KConfigSkeleton *config, QObject *parent = 0);
+    ~ConfigPropertyMap();
+
+private Q_SLOTS:
+    void loadConfig();
+    void writeConfig();
+    void writeConfigValue(const QString &key, const QVariant &value);
+
+private:
+    QWeakPointer<KConfigSkeleton>m_config;
+};
+
+#endif

src/scriptengines/qml/plasmoid/appletinterface.cpp

@@ -42,6 +42,7 @@
 #include <Plasma/Package>
 
 #include "containmentinterface.h"
+#include "declarative/configpropertymap.h"
 
 Q_DECLARE_METATYPE(AppletInterface*)
 
@@ -54,6 +55,9 @@ AppletInterface::AppletInterface(DeclarativeAppletScript *script, QQuickItem *pa
       m_expanded(false)
 {
     qmlRegisterType<AppletInterface>();
+    
+    m_configuration = new ConfigPropertyMap(applet()->configScheme(), this);
+
     connect(this, SIGNAL(releaseVisualFocus()), applet(), SIGNAL(releaseVisualFocus()));
     connect(this, SIGNAL(configNeedsSaving()), applet(), SIGNAL(configNeedsSaving()));
     connect(applet(), SIGNAL(immutabilityChanged(Plasma::ImmutabilityType)), this, SIGNAL(immutableChanged()));
@@ -107,6 +111,11 @@ QString AppletInterface::currentActivity() const
     return applet()->containment()->activity();
 }
 
+QObject* AppletInterface::configuration() const
+{
+    return m_configuration;
+}
+
 QString AppletInterface::icon() const
 {
     return applet()->icon();

src/scriptengines/qml/plasmoid/appletinterface.h

@@ -35,6 +35,8 @@ class QmlAppletScript;
 class QSignalMapper;
 class QSizeF;
 
+class ConfigPropertyMap;
+
 
 namespace Plasma
 {
@@ -58,6 +60,7 @@ class AppletInterface : public QQuickItem
     Q_PROPERTY(FormFactor formFactor READ formFactor NOTIFY formFactorChanged)
     Q_PROPERTY(Location location READ location NOTIFY locationChanged)
     Q_PROPERTY(QString currentActivity READ currentActivity NOTIFY contextChanged)
+    Q_PROPERTY(QObject* configuration READ configuration CONSTANT)
     Q_PROPERTY(QString activeConfig WRITE setActiveConfig READ activeConfig)
     Q_PROPERTY(bool busy WRITE setBusy READ isBusy NOTIFY busyChanged)
     Q_PROPERTY(bool expanded WRITE setExpanded READ isExpanded NOTIFY expandedChanged)
@@ -184,6 +187,8 @@ enum IntervalAlignment {
 
     QString currentActivity() const;
 
+    QObject* configuration() const;
+
     bool isBusy() const;
     void setBusy(bool busy);
 
@@ -233,6 +238,8 @@ private:
     QMap<QString, Plasma::ConfigLoader*> m_configs;
 
 
+    ConfigPropertyMap *m_configuration;
+
 //UI-specific members ------------------
     QWeakPointer<QObject> m_uiObject;
     QWeakPointer<QObject> m_compactUiObject;

src/shell/applets/testapplet/contents/ui/main.qml

@@ -64,6 +64,12 @@ Rectangle {
                 plasmoid.busy = !plasmoid.busy
             }
         }
+        TextInput {
+            width: 100
+            height: 22
+            text: plasmoid.configuration.Test
+            onTextChanged: plasmoid.configuration.Test = text
+        }
     }
     Component.onCompleted: {
         print("Test Applet loaded")