Add the fallback component from the plasma-mobile repository

declarativeimports/plasmaextracomponents/CMakeLists.txt

@@ -9,6 +9,7 @@ set(plasmaextracomponents_SRCS
     appbackgroundprovider.cpp
     resourceinstance.cpp
     plasmaextracomponentsplugin.cpp
+    fallbackcomponent.cpp
     )
 
 include_directories(
@@ -19,7 +20,8 @@ qt4_automoc(${plasmaextracomponents_SRCS})
 
 
 add_library(plasmaextracomponentsplugin SHARED ${plasmaextracomponents_SRCS})
-target_link_libraries(plasmaextracomponentsplugin ${QT_QTCORE_LIBRARY} ${QT_QTDECLARATIVE_LIBRARY} ${QT_QTGUI_LIBRARY} ${KDE4_PLASMA_LIBS} ${KACTIVITIES_LIBRARY} )
+target_link_libraries(plasmaextracomponentsplugin ${QT_QTCORE_LIBRARY} ${QT_QTDECLARATIVE_LIBRARY}
+                                                    ${QT_QTGUI_LIBRARY} ${KDE4_PLASMA_LIBS} ${KACTIVITIES_LIBRARY} )
 
 install(TARGETS plasmaextracomponentsplugin DESTINATION ${IMPORTS_INSTALL_DIR}/org/kde/plasma/extras)
 

declarativeimports/plasmaextracomponents/fallbackcomponent.cpp

@@ -0,0 +1,60 @@
+/*
+ *   Copyright 2011 Marco Martin <mart@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 Library 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 "fallbackcomponent.h"
+
+
+#include <QFile>
+
+
+#include <KStandardDirs>
+#include <KDebug>
+
+
+FallbackComponent::FallbackComponent(QObject *parent)
+    : QObject(parent)
+{
+}
+
+QString FallbackComponent::resolvePath(const QString &component, const QStringList &paths)
+{
+    QString resolved;
+    foreach (const QString &path, paths) {
+        //kDebug() << "Searching for" << path;
+        const QString key = component + '/' + path;
+        if (m_paths.contains(key)) {
+            resolved = *m_paths.object(key);
+            if (!resolved.isEmpty()) {
+                break;
+            } else {
+                continue;
+            }
+        }
+
+        resolved = KStandardDirs::locate("data", "plasma/" + key);
+        m_paths.insert(key, new QString(resolved));
+        if (!resolved.isEmpty()) {
+            break;
+        }
+    }
+
+    return resolved;
+}
+
+#include "fallbackcomponent.moc"

declarativeimports/plasmaextracomponents/fallbackcomponent.h

@@ -0,0 +1,41 @@
+/*
+ *   Copyright 2011 Marco Martin <mart@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 Library 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 FALLBACKCOMPONENT_H
+#define FALLBACKCOMPONENT_H
+
+
+#include <QObject>
+#include <QCache>
+
+
+class FallbackComponent : public QObject
+{
+    Q_OBJECT
+
+public:
+    FallbackComponent(QObject *parent = 0);
+
+    Q_INVOKABLE QString resolvePath(const QString &component, const QStringList &paths);
+
+private:
+    QCache<QString, QString> m_paths;
+};
+
+#endif

declarativeimports/plasmaextracomponents/plasmaextracomponentsplugin.cpp

@@ -21,6 +21,7 @@
 
 #include "appbackgroundprovider_p.h"
 #include "resourceinstance.h"
+#include "fallbackcomponent.h"
 
 #include <QtDeclarative/qdeclarative.h>
 #include <QtDeclarative/QDeclarativeEngine>
@@ -48,8 +49,7 @@ void PlasmaExtraComponentsPlugin::registerTypes(const char *uri)
     */
     // Register additional types here...
     qmlRegisterType<ResourceInstance>(uri, 0, 1, "ResourceInstance");
-
+    qmlRegisterType<FallbackComponent>(uri, 0, 1, "FallbackComponent");
-    
 }