//  -*- c-basic-offset:4; indent-tabs-mode:nil -*-
// vim: set ts=4 sts=4 sw=4 et:
/* This file is part of the KDE project
   Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
   Copyright (C) 2006 Daniel Teske <teske@squorn.de>

   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 KBOOKMARKMENU_H
#define KBOOKMARKMENU_H

#include "kbookmark.h"
#include "kbookmarkmanager.h"

#include <QObject>
#include <QString>
#include <QAction>

#include <kaction.h>
#include <kactionmenu.h>
#include <kmenu.h>

class KActionCollection;
class KMenu;
class KBookmarkMenuPrivate;

/**
 * This class provides a bookmark menu.  It is typically used in
 * cooperation with KActionMenu but doesn't have to be.
 *
 * If you use this class by itself, then it will use KDE defaults for
 * everything -- the bookmark path, bookmark editor, bookmark launcher..
 * everything.  These defaults reside in the classes
 * KBookmarkOwner (editing bookmarks) and KBookmarkManager
 * (almost everything else).  If you wish to change the defaults in
 * any way, you must reimplement either this class or KBookmarkOwner.
 *
 * Using this class is very simple:
 *
 * 1) Create a popup menu (either KActionMenu or KMenu will do)
 * 2) Instantiate a new KBookmarkMenu object using the above popup
 *    menu as a parameter
 * 3) Insert your (now full) popup menu wherever you wish
 *
 */
class KIO_EXPORT KBookmarkMenu : public QObject
{
    Q_OBJECT
public:
    /**
     * Fills a bookmark menu
     * (one instance of KBookmarkMenu is created for the toplevel menu,
     *  but also one per submenu).
     *
     * @param mgr The bookmark manager to use (i.e. for reading and writing)
     * @param owner implementation of the KBookmarkOwner callback interface.
     * @param parentMenu menu to be filled
     * @param collec parent collection for the KActions.
     *
     * @note If you pass a null KBookmarkOwner to the constructor, the
     * openBookmark signal is not emitted, instead KRun is used to open the bookmark.
     * @todo give ownership of the bookmarkmenu to another qobject, e.g. parentMenu.
     * Currently this is a QObject without a parent, use setParent to benefit from automatic deletion.
     */
    KBookmarkMenu(KBookmarkManager *mgr, KBookmarkOwner *owner, KMenu *parentMenu, KActionCollection *collec);

    /**
     * Creates a bookmark submenu
     *
     * @todo give ownership of the bookmarkmenu to another qobject, e.g. parentMenu.
     * Currently this is a QObject without a parent, use setParent to benefit from automatic deletion.
     */
    KBookmarkMenu(KBookmarkManager *mgr, KBookmarkOwner *owner,
                  KMenu *parentMenu, const QString &parentAddress);

    ~KBookmarkMenu();

    /**
     * Call ensureUpToDate() if you need KBookmarkMenu to adjust to its
     * final size before it is executed.
     **/
    void ensureUpToDate();

public Q_SLOTS:
    // public for KonqBookmarkBar
    void slotBookmarksChanged(const QString &groupAddress); 

protected Q_SLOTS:
    void slotAboutToShow();
    void slotAddBookmarksList();
    void slotAddBookmark();
    void slotNewFolder();
    void slotOpenFolderInTabs();

protected:
    virtual void clear();
    virtual void refill();
    virtual QAction* actionForBookmark(const KBookmark &bm);
    virtual KMenu* contextMenu(QAction *action);

    void addActions();
    void fillBookmarks();
    void addAddBookmark();
    void addAddBookmarksList();
    void addEditBookmarks();
    void addNewFolder();
    void addOpenInTabs();


    bool isRoot() const;
    bool isDirty() const;

    /**
     * Parent bookmark for this menu.
     */
    QString parentAddress() const;

    KBookmarkManager* manager() const;
    KBookmarkOwner* owner() const;
    /**
     * The menu in which we insert our actions
     * Supplied in the constructor.
     */
    KMenu* parentMenu() const;

private Q_SLOTS:
    void slotCustomContextMenu(const QPoint &pos);

private:
    KBookmarkMenuPrivate* const d;
    Q_DISABLE_COPY(KBookmarkMenu);
};

class KIO_EXPORT KBookmarkContextMenu : public KMenu
{
    Q_OBJECT
public:
    KBookmarkContextMenu(const KBookmark &bm, KBookmarkManager *manager, KBookmarkOwner *owner, QWidget *parent = 0);

    virtual void addActions();

public Q_SLOTS:
    void slotEditAt();
    void slotProperties();
    void slotInsert();
    void slotRemove();
    void slotCopyLocation();
    void slotOpenFolderInTabs();

protected:
    void addBookmark();
    void addFolderActions();
    void addProperties();
    void addBookmarkActions();
    void addOpenFolderInTabs();

    KBookmarkManager* manager() const;
    KBookmarkOwner* owner() const;
    KBookmark bookmark() const;

private Q_SLOTS:
    void slotAboutToShow();

private:
    KBookmark bm;
    KBookmarkManager* m_pManager;
    KBookmarkOwner* m_pOwner;
};

class KIO_EXPORT KBookmarkActionInterface
{
public:
    KBookmarkActionInterface(const KBookmark &bk);
    virtual ~KBookmarkActionInterface();
    const KBookmark bookmark() const;
private:
    KBookmark bm;
};

/***
 * A wrapper around KActionMenu to provide a nice constructor for bookmark groups.
 *
 */
class KIO_EXPORT KBookmarkActionMenu : public KActionMenu, public KBookmarkActionInterface
{
public:
    KBookmarkActionMenu(const KBookmark &bm, QObject *parent);
    KBookmarkActionMenu(const KBookmark &bm, const QString &text, QObject *parent);
};

/***
 * This class is a KAction for bookmarks.
 * It provides a nice constructor.
 * And on triggered uses the owner to open the bookmark.
 *
 */
class KIO_EXPORT KBookmarkAction : public KAction, public KBookmarkActionInterface
{
    Q_OBJECT
public:
    KBookmarkAction(const KBookmark &bk, KBookmarkOwner* owner, QObject *parent);

public Q_SLOTS:
    void slotSelected(Qt::MouseButtons mb, Qt::KeyboardModifiers km);

private:
    KBookmarkOwner* m_pOwner;
};

#endif // KBOOKMARKMENU_H