Update trash-icon dependent on whether the thrash is empty or not

The class PlacesItemStorageAccessListener has been renamed to
PlacesItemSignalHandler and represents a generic signal handler
for the PlacesItem.

1 files changed, 68 insertions, 0 deletions

diff --git a/src/panels/places/placesitemsignalhandler.h b/src/panels/places/placesitemsignalhandler.h
new file mode 100644
index 000000000..d767b58d3
--- /dev/null
+++ b/src/panels/places/placesitemsignalhandler.h
@@ -0,0 +1,68 @@
+/***************************************************************************
+ *   Copyright (C) 2012 by Peter Penz <[email protected]>             *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, 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 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 PLACESITEMSIGNALHANDLER_H
+#define PLACESITEMSIGNALHANDLER_H
+
+#include <QObject>
+
+class PlacesItem;
+
+/**
+ * @brief Helper class for PlacesItem to be able to listen to signals
+ *        and performing a corresponding action.
+ *
+ * PlacesItem is derived from KStandardItem, which is no QObject-class
+ * on purpose. To be able to internally listening to signals and performing a
+ * corresponding action, PlacesItemSignalHandler is used.
+ *
+ * E.g. if the PlacesItem wants to react on accessibility-changes of a storage-access,
+ * the signal-handler can be used like this:
+ * <code>
+ *     QObject::connect(storageAccess, SIGNAL(accessibilityChanged(bool,QString)),
+ *                      signalHandler, SLOT(onAccessibilityChanged()));
+ * </code>
+ *
+ * The slot PlacesItemSignalHandler::onAccessibilityChanged() will call
+ * the method PlacesItem::onAccessibilityChanged().
+ */
+class PlacesItemSignalHandler: public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit PlacesItemSignalHandler(PlacesItem* item, QObject* parent = 0);
+    virtual ~PlacesItemSignalHandler();
+
+public slots:
+    /**
+     * Calls PlacesItem::onAccessibilityChanged()
+     */
+    void onAccessibilityChanged();
+
+    /**
+     * Calls PlacesItem::onTrashDirListerCompleted()
+     */
+    void onTrashDirListerCompleted();
+
+private:
+    PlacesItem* m_item;
+};
+
+#endif