Make SipPlugin reset pure virtual and implement

src/libtomahawk/sip/SipPlugin.h

@@ -94,7 +94,8 @@ public slots:
     // so plugins can clean up after themselves
     virtual void deletePlugin();
 
-    virtual void reset() {}
+    //called when there is a new database
+    virtual void reset() = 0;
     
 signals:
     void error( int, const QString& );

src/sip/jabber/jabber.h

@@ -97,6 +97,8 @@ public slots:
     void refreshProxy();
     void showAddFriendDialog();
 
+    virtual void reset() {}
+
 protected:
     virtual QString defaultSuffix() const;
 

src/sip/twitter/twitter.cpp

@@ -785,6 +785,18 @@ TwitterPlugin::checkSettings()
     connectPlugin( false );
 }
 
+
+void
+TwitterPlugin::reset()
+{
+    qDebug() << Q_FUNC_INFO;
+    setTwitterCachedDirectMessagesSinceId( 0 );
+    setTwitterCachedFriendsSinceId( 0 );
+    setTwitterCachedMentionsSinceId( 0 );
+    setTwitterCachedPeers( QHash< QString, QVariant >() );
+}
+
+
 QString
 TwitterPlugin::twitterScreenName() const
 {

src/sip/twitter/twitter.h

@@ -78,6 +78,7 @@ signals:
 public slots:
     virtual bool connectPlugin( bool startup );
     void disconnectPlugin();
+    virtual void reset();
     void checkSettings();
     void refreshProxy();
     void deletePlugin();

src/sip/zeroconf/zeroconf.h

@@ -67,6 +67,8 @@ public slots:
     virtual bool connectPlugin( bool startup );
     void disconnectPlugin();
 
+    virtual void reset() {}
+    
     void sendMsg( const QString& , const QString&  ) {}
     void broadcastMsg( const QString & ) {}
     void addContact( const QString &, const QString&  ) {}