Add signals

src/historyswitchfoldermanager.cpp

@@ -27,3 +27,8 @@ void HistorySwitchFolderManager::clear()
 {
     mUndoStack->clear();
 }
+
+void HistorySwitchFolderManager::addCollection(const Akonadi::Collection &col)
+{
+    // TODO
+}

src/historyswitchfoldermanager.h

@@ -7,6 +7,10 @@
 
 #include <QObject>
 class QUndoStack;
+namespace Akonadi
+{
+class Collection;
+}
 class HistorySwitchFolderManager : public QObject
 {
     Q_OBJECT
@@ -17,6 +21,10 @@ public:
     void clear();
     void addHistory();
 
+    void addCollection(const Akonadi::Collection &col);
+Q_SIGNALS:
+    void switchToFolder(const Akonadi::Collection &col);
+
 private:
     QUndoStack *const mUndoStack;
 };