/*  This file is part of the KDE libraries and the Kate part.
 *
 *  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 __KATE_ABSTRACT_INPUT_MODE_H__
#define __KATE_ABSTRACT_INPUT_MODE_H__

class KateLayoutCache;
class KateViewInternal;

#include "katerenderer.h"
#include "ktexteditor/view.h"
#include "ktexteditor_export.h" // for tests

#include <KConfigGroup>

#include <QKeyEvent>

class KateViewInternal;
namespace KTextEditor { class ViewPrivate; }

class KTEXTEDITOR_EXPORT KateAbstractInputMode
{
protected:
    KateAbstractInputMode(KateViewInternal *);

public:
    virtual ~KateAbstractInputMode();

    virtual KTextEditor::View::ViewMode viewMode() const = 0;
    virtual QString viewModeHuman() const = 0;
    virtual KTextEditor::View::InputMode viewInputMode() const = 0;
    virtual QString viewInputModeHuman() const = 0;

    virtual void activate() = 0;
    virtual void deactivate() = 0;
    virtual void reset() = 0;

    virtual bool overwrite() const = 0;
    virtual void overwrittenChar(const QChar &) = 0;
    virtual void clearSelection() = 0;
    virtual bool stealKey(const QKeyEvent *) const = 0;

    virtual void gotFocus() = 0;
    virtual void lostFocus() = 0;

    virtual void readSessionConfig(const KConfigGroup &config) = 0;
    virtual void writeSessionConfig(KConfigGroup &config) = 0;
    virtual void updateRendererConfig() = 0;
    virtual void updateConfig() = 0;
    virtual void readWriteChanged(bool rw) = 0;

    virtual void find() = 0;
    virtual void findSelectedForwards() = 0;
    virtual void findSelectedBackwards() = 0;
    virtual void findReplace() = 0;
    virtual void findNext() = 0;
    virtual void findPrevious() = 0;

    virtual void activateCommandLine() = 0;

    virtual bool keyPress(QKeyEvent *) = 0;
    virtual bool blinkCaret() const = 0;
    virtual KateRenderer::caretStyles caretStyle() const = 0;

    virtual void toggleInsert() = 0;
    virtual void launchInteractiveCommand(const QString &command) = 0;

    virtual QString bookmarkLabel(int line) const = 0;

    /* functions that are currently view private, but vi-mode needs to access them */
public:
    void updateCursor(const KTextEditor::Cursor &newCursor);
    KateLayoutCache *layoutCache() const;
    int linesDisplayed() const;
    void scrollViewLines(int offset);

protected:
    KateViewInternal *viewInternal() const { return m_viewInternal; }
    KTextEditor::ViewPrivate *view() const { return m_view; }

private:
    KateViewInternal *m_viewInternal;
    KTextEditor::ViewPrivate *m_view;
};

#endif
