SessionManager: emit sessionLoaded after actually changing activeSession

Also make use of that signal for the welcome page
Task-Nr: QTCREATORBUG-4034

src/plugins/projectexplorer/projectexplorer.cpp

@@ -331,6 +331,8 @@ bool ProjectExplorerPlugin::initialize(const QStringList &arguments, QString *er
             this, SLOT(updateActions()));
     connect(d->m_session, SIGNAL(sessionLoaded()),
             this, SLOT(updateActions()));
+    connect(d->m_session, SIGNAL(sessionLoaded()),
+            this, SLOT(updateWelcomePage()));
 
     d->m_proWindow = new ProjectWindow;
 

src/plugins/projectexplorer/projectexplorer.h

@@ -215,6 +215,7 @@ private slots:
     void updateVariable(const QString &variable);
 
     void publishProject();
+    void updateWelcomePage();
 
 #ifdef WITH_TESTS
     void testGccOutputParsers_data();
@@ -252,7 +253,6 @@ private:
     IRunControlFactory *findRunControlFactory(RunConfiguration *config, const QString &mode);
 
     void addToRecentProjects(const QString &fileName, const QString &displayName);
-    void updateWelcomePage();
 
     static ProjectExplorerPlugin *m_instance;
     ProjectExplorerPluginPrivate *d;

src/plugins/projectexplorer/session.cpp

@@ -627,9 +627,6 @@ bool SessionManager::loadImpl(const QString &fileName)
     if (debug)
         qDebug() << "SessionManager - restoring session returned " << success;
 
-    if (success)
-        emit sessionLoaded();
-
     return success;
 }
 
@@ -1031,6 +1028,7 @@ bool SessionManager::loadSession(const QString &session)
     if (QFileInfo(fileName).exists()) {
         if (loadImpl(fileName)) {
             updateName(session);
+            emit sessionLoaded();
             return true;
         }
     } else {
@@ -1038,6 +1036,7 @@ bool SessionManager::loadSession(const QString &session)
         if (!createImpl(sessionNameToFileName(session)))
             return false;
         updateName(session);
+        emit sessionLoaded();
         return true;
     }
     return false;