editorwatcher.h

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/*
    Copyright (c) 2007 Volker Krause <vkrause@kde.org>

    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; either version 2 of the License, or
    (at your option) any later version.

    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.
*/

#ifndef MESSAGEVIEWER_EDITORWATCHER_H
#define MESSAGEVIEWER_EDITORWATCHER_H

#include "messageviewer_export.h"
#include <kurl.h>

#include <qobject.h>
#include <qtimer.h>
#include <QTime>
class KProcess;

namespace MessageViewer {


class MESSAGEVIEWER_EXPORT EditorWatcher : public QObject
{
    Q_OBJECT
public:
    enum OpenWithOption {
        OpenWithDialog,
        NoOpenWithDialog
    };
    enum ErrorEditorWatcher {
        Unknown = 0,
        Canceled,
        NoServiceFound,
        CannotStart,
        NoError
    };

    EditorWatcher( const KUrl &url, const QString &mimeType, OpenWithOption option,
                   QObject *parent, QWidget *parentWidget );
    ~EditorWatcher();
    ErrorEditorWatcher start();
    bool fileChanged() const;
    KUrl url() const;
signals:
    void editDone( MessageViewer::EditorWatcher* watcher );

private slots:
    void editorExited();
    void inotifyEvent();
    void checkEditDone();

private:
    KUrl mUrl;
    QString mMimeType;
    QTimer mTimer;
    QTime mEditTime;

    KProcess *mEditor;
    QWidget *mParentWidget;

    int mInotifyFd;
    int mInotifyWatch;
    OpenWithOption mOpenWithOption;
    bool mHaveInotify;
    bool mFileOpen;
    bool mEditorRunning;
    bool mFileModified;
    bool mDone;
};

}

#endif