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+// -*- mode: C++; c-file-style: "gnu" -*-
+/**
+ * kmfolderdia.h
+ *
+ * Copyright (c) 1997-2004 KMail Developers
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ *  In addition, as a special exception, the copyright holders give
+ *  permission to link the code of this program with any edition of
+ *  the Qt library by Trolltech AS, Norway (or with modified versions
+ *  of Qt that use the same license as Qt), and distribute linked
+ *  combinations including the two.  You must obey the GNU General
+ *  Public License in all respects for all of the code used other than
+ *  Qt.  If you modify this file, you may extend this exception to
+ *  your version of the file, but you are not obligated to do so.  If
+ *  you do not wish to do so, delete this exception statement from
+ *  your version.
+ */
+#ifndef __KMFOLDERDIA
+#define __KMFOLDERDIA
+
+#include <kdialogbase.h>
+#include "configuredialog_p.h"
+#include <qvaluevector.h>
+
+class QCheckBox;
+class QPushButton;
+class QLineEdit;
+class QListBox;
+class QComboBox;
+class KMFolder;
+class KMFolderTreeItem;
+class KMFolderDir;
+class KIntNumInput;
+class KIconButton;
+class KEditListBox;
+namespace KPIM { class IdentityCombo; }
+class KMFolderDialog;
+class KMFolderTree;
+template <typename T> class QGuardedPtr;
+class TemplatesConfiguration;
+class KPushButton;
+
+namespace KMail {
+  class FolderRequester;
+/**
+ * This is the base class for tabs in the folder dialog.
+ * It uses the API from ConfigModuleTab (basically: it's a widget that can load and save)
+ * but it also adds support for delayed-saving:
+ * when save() needs to use async jobs (e.g. KIO) for saving,
+ * we need to delay the closing until after the jobs are finished,
+ * and to cancel the saving on error.
+ *
+ * Feel free to rename and move this base class somewhere else if it
+ * can be useful for other dialogs.
+ */
+class FolderDiaTab : public QWidget
+{
+  Q_OBJECT
+public:
+   FolderDiaTab( QWidget *parent=0, const char* name=0 )
+     : QWidget( parent, name ) {}
+
+  virtual void load() = 0;
+
+  /// Unlike ConfigModuleTab, we return a bool from save.
+  /// This allows to cancel closing on error.
+  /// When called from the Apply button, the return value is ignored
+  /// @return whether save succeeded
+  virtual bool save() = 0;
+
+  enum AcceptStatus { Accepted, Canceled, Delayed };
+  /// Called when clicking OK.
+  /// If a module returns Delayed, the closing is cancelled for now,
+  /// and the module can close the dialog later on (i.e. after an async
+  /// operation like a KIO job).
+  virtual AcceptStatus accept() {
+    return save() ? Accepted : Canceled;
+  }
+
+signals:
+  /// Emit this to tell the dialog that you're done with the async jobs,
+  /// and that the dialog can be closed.
+  void readyForAccept();
+
+  /// Emit this, i.e. after a job had an error, to tell the dialog to cancel
+  /// the closing.
+  void cancelAccept();
+
+  /// Called when this module was changed [not really used yet]
+  void changed(bool);
+};
+
+/**
+ * "General" tab in the folder dialog
+ * Internal class, only used by KMFolderDialog
+ */
+class FolderDiaGeneralTab : public FolderDiaTab
+{
+  Q_OBJECT
+
+public:
+  FolderDiaGeneralTab( KMFolderDialog* dlg,
+                       const QString& aName,
+                       QWidget* parent, const char* name = 0 );
+
+  virtual void load();
+  virtual bool save();
+
+private slots:
+  void slotChangeIcon( QString icon );
+  /*
+   * is called if the folder dropdown changes
+   * then we update the other items to reflect the capabilities
+   */
+  void slotFolderNameChanged( const QString& );
+  void slotFolderContentsSelectionChanged( int );
+
+private:
+  void initializeWithValuesFromFolder( KMFolder* folder );
+
+private:
+  QComboBox *mShowSenderReceiverComboBox;
+  QComboBox *mContentsComboBox;
+  QComboBox *mIncidencesForComboBox;
+  QCheckBox *mAlarmsBlockedCheckBox;
+  QLabel      *mNormalIconLabel;
+  KIconButton *mNormalIconButton;
+  QLabel      *mUnreadIconLabel;
+  KIconButton *mUnreadIconButton;
+  QCheckBox   *mIconsCheckBox;
+  QCheckBox   *mNewMailCheckBox;
+  QCheckBox   *mNotifyOnNewMailCheckBox;
+  QCheckBox   *mKeepRepliesInSameFolderCheckBox;
+  KLineEdit   *mNameEdit;
+
+  KPIM::IdentityCombo *mIdentityComboBox;
+
+  KMFolderDialog* mDlg;
+  bool mIsLocalSystemFolder;
+};
+
+/**
+ * "Templates" tab in the folder dialog
+ * Internal class, only used by KMFolderDialog
+ */
+class FolderDiaTemplatesTab : public FolderDiaTab
+{
+  Q_OBJECT
+
+public:
+  FolderDiaTemplatesTab( KMFolderDialog *dlg, QWidget *parent );
+
+  virtual void load();
+  virtual bool save();
+
+public slots:
+  void slotEmitChanged(); // do nothing for now
+
+  void slotCopyGlobal();
+
+private:
+  void initializeWithValuesFromFolder( KMFolder* folder );
+
+private:
+  QCheckBox* mCustom;
+  TemplatesConfiguration* mWidget;
+  KPushButton* mCopyGlobal;
+  KMFolder* mFolder;
+  uint mIdentity;
+
+  KMFolderDialog* mDlg;
+  bool mIsLocalSystemFolder;
+};
+
+} // end of namespace KMail
+
+/**
+ * Dialog for handling the properties of a mail folder
+ */
+class KMFolderDialog : public KDialogBase
+{
+  Q_OBJECT
+
+public:
+  KMFolderDialog( KMFolder *folder, KMFolderDir *aFolderDir,
+		  KMFolderTree* parent, const QString& caption,
+                  const QString& name = QString::null );
+
+  KMFolder* folder() const { return mFolder; }
+  void setFolder( KMFolder* folder );
+  // Was mFolder just created? (This only makes sense from save())
+  // If Apply is clicked, or OK proceeeds half-way, then next time "new folder" will be false.
+  bool isNewFolder() const { return mIsNewFolder; }
+
+  KMFolderDir* folderDir() const { return mFolderDir; }
+  typedef QValueList<QGuardedPtr<KMFolder> > FolderList;
+
+  KMFolder* parentFolder() const { return mParentFolder; }
+
+  KMFolderTree* folderTree() const { return mFolderTree; }
+
+protected slots:
+  void slotChanged( bool );
+  virtual void slotOk();
+  virtual void slotApply();
+
+  void slotReadyForAccept();
+  void slotCancelAccept();
+
+private:
+  void addTab( KMail::FolderDiaTab* tab );
+
+private:
+  // Can be 0 initially when creating a folder, but will be set by save() in the first tab.
+  QGuardedPtr<KMFolder> mFolder;
+  QGuardedPtr<KMFolderDir> mFolderDir;
+  QGuardedPtr<KMFolder> mParentFolder;
+
+  bool mIsNewFolder; // if true, save() did set mFolder.
+
+  QValueVector<KMail::FolderDiaTab*> mTabs;
+  int mDelayedSavingTabs; // this should go into a base class one day
+  KMFolderTree* mFolderTree;
+};
+
+#endif /*__KMFOLDERDIA*/
+