File indexing completed on 2024-06-23 05:20:25

 /*
     Copyright (C) 2012  Andras Mantia <amantia@kde.org>
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.
 
     You should have received a copy of the GNU Lesser General Public
     License along with this library; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
 
 #ifndef KEYCACHE_H
 #define KEYCACHE_H
 
 /** @brief a cache for the maildir keys (file names in cur/new folders).
  *  It is used to find if a file is in cur or new
  */
 
 #include <QSet>
 #include <QHash>
 
 class KeyCache {
 
 public:
   static KeyCache *self()
   {
     if ( !mSelf )
             mSelf = new KeyCache();
     return mSelf;
   }
 
   /** Find the new and cur keys on the disk for @param dir and add them to the cache */
   void addKeys( const QString& dir );
 
   /** Refresh the new and cur keys for @param dir */
   void refreshKeys( const QString& dir );
 
   /** Add a "new" key for @param dir. */
   void addNewKey( const QString& dir, const QString& key );
 
   /** Add a "cur" key for @param dir. */
   void addCurKey( const QString& dir, const QString& key );
 
   /** Remove all keys associated with @param dir. */
   void removeKey( const QString& dir, const QString& key );
 
   /** Check if the @param key is a "cur" key in @param dir */
   bool isCurKey( const QString& dir, const QString& key ) const;
 
   /** Check if the @param key is a "new" key in @param dir */
   bool isNewKey( const QString& dir, const QString& key ) const;
 
 private:
   KeyCache() {
   }
 
   QSet<QString> listNew( const QString& dir ) const;
 
   QSet<QString> listCurrent( const QString& dir ) const;
 
   QHash< QString, QSet<QString> > mNewKeys;
   QHash< QString, QSet<QString> > mCurKeys;
 
   static KeyCache* mSelf;
 
 };
 
 
 #endif // KEYCACHE_H