initial draft + stub class of the Context (aka Activity) class for Nepomuk integration and the exporting of workspace Contexts to the rest of the desktop as per disucssions at Akademy.

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=848789

CMakeLists.txt

@@ -29,6 +29,7 @@ set(plasma_LIB_SRCS
     appletbrowser/plasmaappletitemmodel.cpp
     configxml.cpp
     containment.cpp
+    context.cpp
     corona.cpp
     datacontainer.cpp
     dataengine.cpp
@@ -134,6 +135,7 @@ set(plasma_LIB_INCLUDES
     appletbrowser.h
     configxml.h
     containment.h
+    context.h
     corona.h
     datacontainer.h
     dataengine.h
@@ -210,6 +212,7 @@ includes/CheckBox
 includes/ComboBox
 includes/ConfigXml
 includes/Containment
+includes/Context
 includes/Corona
 includes/DataContainer
 includes/DataEngine
@@ -275,3 +278,13 @@ install(FILES
 
 install(FILES scripting/plasmoids.knsrc DESTINATION  ${CONFIG_INSTALL_DIR})
 
+# Nepomuk integration
+configure_file(ontology/workspace.desktop.cmake ${CMAKE_CURRENT_BINARY_DIR}/workspace.desktop)
+
+install(FILES
+  ontology/workspace.trig
+  ${CMAKE_CURRENT_BINARY_DIR}/workspace.desktop
+  DESTINATION
+  ${DATA_INSTALL_DIR}/nepomuk/ontologies
+)
+

context.cpp

@@ -0,0 +1,61 @@
+/*
+ *   Copyright 2008 by Aaron Seigo <aseigo@kde.org>
+ *
+ *   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 "context.h"
+
+namespace Plasma
+{
+
+class ContextPrivate
+{
+public:
+};
+
+Context::Context(QObject *parent)
+    : QObject(parent),
+      d(new ContextPrivate)
+{
+}
+
+Context::~Context()
+{
+}
+
+void Context::createContext(const QString &name)
+{
+}
+
+QStringList Context::contexts() const
+{
+    return QStringList();
+}
+
+void Context::setCurrentContext(const QString &name)
+{
+}
+
+QString Context::currentContext() const
+{
+    return QString();
+}
+
+} // namespace Plasma
+
+#include "context.moc"
+

context.h

@@ -0,0 +1,57 @@
+/*
+ *   Copyright 2008 by Aaron Seigo <aseigo@kde.org>
+ *
+ *   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 PLASMA_CONTEXT_H
+#define PLASMA_CONTEXT_H
+
+#include <QtCore/QObject>
+#include <QtCore/QStringList>
+
+#include "plasma_export.h"
+
+namespace Plasma
+{
+
+class ContextPrivate;
+
+class PLASMA_EXPORT Context : QObject
+{
+    Q_OBJECT
+
+public:
+    explicit Context(QObject *parent = 0);
+    ~Context();
+
+    void createContext(const QString &name);
+    QStringList contexts() const;
+
+    void setCurrentContext(const QString &name);
+    QString currentContext() const;
+
+Q_SIGNALS:
+    void currentChanged(const QString &);
+
+private:
+    ContextPrivate * const d;
+};
+
+} // namespace Plasma
+
+#endif // multiple inclusion guard
+

includes/Context

@@ -0,0 +1,2 @@
+#include "../../plasma/context.h"
+

ontology/workspace.desktop.cmake

@@ -0,0 +1,7 @@
+[Desktop Entry]
+Version=1.0
+Name=Workspace Context Ontology
+URL=http://plasma.kde.org/ontologies/workspacecontext#
+Path=${DATA_INSTALL_DIR}/nepomuk/ontologies/workspace.trig
+MimeType=application/x-trig
+Type=Data

ontology/workspace.rdf

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE rdf:RDF [
+         <!ENTITY workspacecontext 'http://plasma.kde.org/ontologies/workspacecontext#'>
+         <!ENTITY rdf 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'>
+         <!ENTITY rdfs 'http://www.w3.org/2000/01/rdf-schema#'>
+         <!ENTITY xs 'http://www.w3.org/2001/XMLSchema#'>
+         <!ENTITY nie 'http://www.semanticdesktop.org/ontologies/2007/01/19/nie/#'>
+]>
+<rdf:RDF
+   xmlns:semn="&workspacecontext;"
+   xmlns:rdf="&rdf;"
+   xmlns:rdfs="&rdfs;"
+   xmlns:xs="&xs;"
+   xmlns:nie="&nie;"
+   >
+  <rdfs:Class rdf:about="&workspacecontext;Context"
+     rdfs:comment="Represents a workspace context, such as a user project or activity"
+     rdfs:label="WorkspaceContext">
+    <rdfs:subClassOf rdf:resource="&nie;InformationElement"/>
+  </rdfs:Class>
+  <rdf:Property rdf:about="&workspacecontext;name"
+     rdfs:comment="A workspace context name"
+     rdfs:label="name">
+    <rdfs:domain rdf:resource="&workspacecontext;Context"/>
+    <rdfs:range rdf:resource="&xs;string"/>
+  </rdf:Property>
+  <rdf:Property rdf:about="&workspacecontext;isActive"
+     rdfs:comment="Is this context the active one?"
+     rdfs:label="isActive">
+    <rdfs:domain rdf:resource="&workspacecontext;Context"/>
+    <rdfs:range rdf:resource="&xs;boolean"/>
+  </rdf:Property>
+</rdf:RDF>

ontology/workspace.trig

@@ -0,0 +1,44 @@
+@prefix workspacecontext:	<http://plasma.kde.org/ontologies/workspacecontext#> .
+@prefix nie:	<http://www.semanticdesktop.org/ontologies/2007/01/19/nie#> .
+@prefix nao:     <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#> .
+@prefix nrl:     <http://www.semanticdesktop.org/ontologies/2007/08/15/nrl#> .
+@prefix rdf:	<http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .
+@prefix xsd:	<http://www.w3.org/2001/XMLSchema#> .
+
+semn: {
+	semn:Context
+		a rdfs:Context ;
+		rdfs:comment "Represents a workspace context, such as a user project or activity." ;
+		rdfs:label "Context" ;
+		rdfs:subClassOf nie:InformationElement .
+		
+	semn:name
+		a       rdf:Property ;
+		rdfs:comment "A workspace context name.";
+		rdfs:label "name" ;
+		rdfs:domain workspacecontext:Context ;
+		rdfs:range xsd:string .
+		
+	semn:name
+		a       rdf:Property ;
+		rdfs:comment "Is this context the active one?";
+		rdfs:label "isActive" ;
+		rdfs:domain workspacecontext:Context ;
+		rdfs:range xsd:boolean .
+}
+
+<http://plasma.kde.org/ontologies/workspacecontext_metadata#> {
+	workspacecontext: 
+		a <http://www.semanticdesktop.org/ontologies/2007/08/15/nrl#Ontology> ;
+		nao:creator "http://www.dfki.uni-kl.de/~mylka" ;
+		nao:hasDefaultNamespace "http://plasma.kde.org/ontologies/workspacecontext#" ;
+		nao:hasDefaultNamespaceAbbreviation "workspacecontext" ;
+		nao:status "Unstable" ;
+		nao:updatable "0 " ;
+		nao:version "0.1" .
+
+	<http://plasma.kde.org/ontologies/workspacecontext_metadata#>
+		a       nrl:GraphMetadata ;
+		nrl:coreGraphMetadataFor workspacecontext: .
+}