homescreenapp/stateplugins/hsmenuworkerstateplugin/inc/hsmenubasestate.h
changeset 35 f9ce957a272c
child 39 4e8ebe173323
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreenapp/stateplugins/hsmenuworkerstateplugin/inc/hsmenubasestate.h	Fri Mar 19 09:27:44 2010 +0200
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description: Menu Base state
+ *
+ */
+
+#ifndef HSMENUBASESTATE_H
+#define HSMENUBASESTATE_H
+
+#include <qstate.h>
+#include <QVariant>
+
+#include "hsmenustates_global.h"
+HS_STATES_TEST_CLASS(MenuStatesTest)
+
+class HsShortcutService;
+class HsContentService;
+
+/**
+ * @ingroup group_hsmenustateplugin
+ * @brief Menu Base State
+ *
+ * Menu Base state is the base class for states used in Menu.
+ * It provides basic functionality that makes implemenatation state easier.
+ * Derived implementation can request specific service and access it using convience function.
+ *
+ * @lib ?library
+ * @since S60 ?S60_version
+ */
+class HsMenuBaseState: public QState
+{
+    Q_OBJECT
+
+    HS_STATES_TEST_FRIEND_CLASS(MenuStatesTest)
+
+public:
+
+    /**
+     * Constructor.
+     *
+     * @since S60 ?S60_version.
+     * @param objectName object name, used for debug purpose
+     * @param parent Owner.
+     */
+    HsMenuBaseState(const QString &objectName, QState *parent = 0);
+
+    /**
+
+     * Destructor.
+     *
+     * @since S60 ?S60_version.
+     */
+    virtual ~HsMenuBaseState();
+
+protected:
+
+    /**
+     * Constructs contained objects.
+     *
+     * @since S60 ?S60_version.
+     * @param objectName object name, used for debug purpose
+     */
+    void construct(const QString &objectName);
+
+    /**
+     * Request for services
+     *
+     * notice that services are appended to the list,
+     * so this fuction can be called more than once.
+     * @since S60 ?S60_version.
+     * @param services list of requested services
+     * this method must be called during construction phased of derived class
+     */
+    void requestServices(const QVariantList &services);
+
+    /**
+     * Convenience method that request single service.
+     *
+     * @param service service to be requested.
+     * @see requestServices
+     */
+    void requestService(const QVariant &service);
+
+    /**
+     * Convenience method that returns the shortcut serviceif was requested
+     *
+     * @since S60 ?S60_version.
+     * @return Shortcut service if exists.
+     */
+    HsShortcutService *shortcutService() const;
+
+    /**
+     * Convenient method that returns the content serviceif was requested
+     *
+     * @since S60 ?S60_version.
+     * @return Content service if exists.
+     */
+    HsContentService *contentService() const;
+
+private:
+    /**
+     * Function return value for specified property and
+     * if it is not valid add warning message on console.
+     *
+     * @since S60 ?S60_version.
+     * @param propertyName Property name.
+     * @return Property after validation.
+     */
+    QVariant propertyWithChecking(const char *propertyName) const;
+
+
+};
+
+#endif //HSMENUBASESTATE_H