1 files changed, 162 insertions, 0 deletions
diff --git a/libkonq/konq_undo.h b/libkonq/konq_undo.h
new file mode 100644
index 000000000..fae2b5e61
--- /dev/null
+++ b/libkonq/konq_undo.h
@@ -0,0 +1,162 @@
+/* This file is part of the KDE project
+   Copyright (C) 2000 Simon Hausmann <[email protected]>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+#ifndef __konq_undo_h__
+#define __konq_undo_h__
+
+#include <qobject.h>
+#include <qstring.h>
+#include <qvaluestack.h>
+
+#include <dcopobject.h>
+
+#include <kurl.h>
+#include <libkonq_export.h>
+
+namespace KIO
+{
+  class Job;
+}
+
+class KonqUndoJob;
+
+struct KonqBasicOperation
+{
+  typedef QValueStack<KonqBasicOperation> Stack;
+
+  KonqBasicOperation()
+  { m_valid = false; }
+
+  bool m_valid;
+  bool m_directory;
+  bool m_renamed;
+  bool m_link;
+  KURL m_src;
+  KURL m_dst;
+  QString m_target;
+};
+
+struct KonqCommand
+{
+  typedef QValueStack<KonqCommand> Stack;
+
+  enum Type { COPY, MOVE, LINK, MKDIR, TRASH };
+
+  KonqCommand()
+  { m_valid = false; }
+
+  bool m_valid;
+
+  Type m_type;
+  KonqBasicOperation::Stack m_opStack;
+  KURL::List m_src;
+  KURL m_dst;
+};
+
+class KonqCommandRecorder : public QObject
+{
+  Q_OBJECT
+public:
+  KonqCommandRecorder( KonqCommand::Type op, const KURL::List &src, const KURL &dst, KIO::Job *job );
+  virtual ~KonqCommandRecorder();
+
+private slots:
+  void slotResult( KIO::Job *job );
+
+  void slotCopyingDone( KIO::Job *, const KURL &from, const KURL &to, bool directory, bool renamed );
+  void slotCopyingLinkDone( KIO::Job *, const KURL &from, const QString &target, const KURL &to );
+
+private:
+  class KonqCommandRecorderPrivate;
+  KonqCommandRecorderPrivate *d;
+};
+
+class LIBKONQ_EXPORT KonqUndoManager : public QObject, public DCOPObject
+{
+  Q_OBJECT
+  K_DCOP
+  friend class KonqUndoJob;
+public:
+  enum UndoState { MAKINGDIRS, MOVINGFILES, REMOVINGDIRS, REMOVINGFILES };
+
+  KonqUndoManager();
+  virtual ~KonqUndoManager();
+
+  static void incRef();
+  static void decRef();
+  static KonqUndoManager *self();
+
+  void addCommand( const KonqCommand &cmd );
+
+  bool undoAvailable() const;
+  QString undoText() const;
+
+public slots:
+  void undo();
+
+signals:
+  void undoAvailable( bool avail );
+  void undoTextChanged( const QString &text );
+
+protected:
+  /**
+   * @internal
+   */
+  void stopUndo( bool step );
+
+private:
+k_dcop:
+  virtual ASYNC push( const KonqCommand &cmd );
+  virtual ASYNC pop();
+  virtual ASYNC lock();
+  virtual ASYNC unlock();
+
+  virtual KonqCommand::Stack get() const;
+
+private slots:
+  void slotResult( KIO::Job *job );
+
+private:
+  void undoStep();
+
+  void undoMakingDirectories();
+  void undoMovingFiles();
+  void undoRemovingFiles();
+  void undoRemovingDirectories();
+
+  void broadcastPush( const KonqCommand &cmd );
+  void broadcastPop();
+  void broadcastLock();
+  void broadcastUnlock();
+
+  void addDirToUpdate( const KURL& url );
+  bool initializeFromKDesky();
+
+  class KonqUndoManagerPrivate;
+  KonqUndoManagerPrivate *d;
+  static KonqUndoManager *s_self;
+  static unsigned long s_refCnt;
+};
+
+QDataStream &operator<<( QDataStream &stream, const KonqBasicOperation &op );
+QDataStream &operator>>( QDataStream &stream, KonqBasicOperation &op );
+
+QDataStream &operator<<( QDataStream &stream, const KonqCommand &cmd );
+QDataStream &operator>>( QDataStream &stream, KonqCommand &cmd );
+
+#endif