diff -r 773be20e0a25 -r 993ab30e92fc searchui/onlinehandler/tsrc/t_googleplugin/inc/onlinesearchplugin.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/searchui/onlinehandler/tsrc/t_googleplugin/inc/onlinesearchplugin.h	Tue Jul 06 14:17:22 2010 +0300
@@ -0,0 +1,121 @@
+/*
+ * 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:   OnlineSearchPlugin class definition
+ *
+ */
+
+#ifndef ONLINESEARCHPLUGIN_H
+#define ONLINESEARCHPLUGIN_H
+
+#include <QObject>
+
+/**
+ * @ingroup group_onlinesearchpluginmodel
+ * @brief Represents a plugin plugin in the framework.
+ *
+ * OnlineSearchPlugin is an interface through which setting plugin plugin can be 
+ * executed in the search handlers.
+ *
+ * @lib ?library
+ * @since S60 ?S60_version
+ */
+
+class OnlineSearchPlugin : public QObject
+    {
+Q_OBJECT
+public:
+
+    /**
+     * Destructor.
+     * @since S60 ?S60_version.
+     */
+    virtual ~OnlineSearchPlugin()
+        {
+        }
+
+    /**
+     * Called by the search handlers during initialize cycle of the plugin, it is during
+     * this phase the plugin widget
+     * usually creates its initial view.
+     * Once the initialization is done, pluginInitialized signal must be 
+     * emitted.
+     * @since S60 ?S60_version.
+     */
+    virtual void initializePlugin() = 0;
+
+    /**
+     * Called by the search handlers when the plugin becomes the current plugin.  
+     * @since S60 ?S60_version.
+     */
+    virtual void activatePlugin() = 0;
+    /**
+     * Called by the search handlers when the plugin becomes the current plugin.  
+     * @since S60 ?S60_version.
+     */
+    virtual void activatePlugin(const QString &searchQuery) = 0;
+
+    /**
+     * Called by the search handlers when the plugin is no longer being displayed.  
+     */
+    virtual void deactivatePlugin() = 0;
+
+    /**
+     * Called by the search handlers before the plugin destructor is called.
+     * @param reason The reason why the search handlers is being killed. 
+     */
+    virtual void shutdownPlugin() = 0;    
+
+protected:
+
+    /**
+     * Constructor.
+     * @since S60 ?S60_version.
+     */
+    OnlineSearchPlugin()
+        {
+        }
+
+signals:
+
+    /**
+     * Emit this signal when changing the view inside the plugin.
+     * @param caller The calling plugin plugin instance.
+     * @param viewWidget The new plugin view widget to be shown.
+     */
+    void viewChanged();
+
+    /**
+     * Emit this signal to indicate initialization is done. 
+     * @param caller The calling plugin plugin instance.
+     * @param success True if succeeded, false otherwise.
+     */
+    void pluginInitialized(bool success);
+
+    /**
+     * Emit this signal to indicate that the plugin plugin can be deleted. 
+     * Note that this signal does not need to be emitted if true is returned
+     * from shutdownPlugin.
+     * @param caller The calling plugin plugin instance.
+     */
+    void shutdownCompleted(bool success);
+
+    /**
+     * Called by search handlers when back button is clicked in the plugin view.
+     * In this method the plugin plugin can implement internally showing and
+     * hiding GUI elements if the plugin has multiple 'views'.
+     */
+    void handleBackEvent();
+    };
+
+#endif // ONLINESEARCHPLUGIN_H