/*
 * Copyright (C) 2016  Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifndef FM_PATHBAR_H
#define FM_PATHBAR_H

#include "libfmqtglobals.h"
#include <QWidget>
#include "core/filepath.h"

class QToolButton;
class QScrollArea;
class QPushButton;
class QHBoxLayout;

namespace Fm {

class PathEdit;
class PathButton;

class LIBFM_QT_API PathBar: public QWidget {
    Q_OBJECT
public:
    explicit PathBar(QWidget* parent = 0);

    const Fm::FilePath& path() {
        return currentPath_;
    }

    void setPath(Fm::FilePath path);

Q_SIGNALS:
    void chdir(const Fm::FilePath& path);
    void middleClickChdir(const Fm::FilePath& path);
    void editingFinished();

public Q_SLOTS:
    void openEditor();
    void closeEditor();
    void copyPath();

private Q_SLOTS:
  void onButtonToggled(bool checked);
  void onScrollButtonClicked();
  void onReturnPressed();
  void setArrowEnabledState(int value);
  void setScrollButtonVisibility();
  void ensureToggledVisible();

protected:
    void resizeEvent(QResizeEvent* event);
    void wheelEvent(QWheelEvent* event);
    void mousePressEvent(QMouseEvent* event);
    void contextMenuEvent(QContextMenuEvent* event);

private:
    void updateScrollButtonVisibility();
    Fm::FilePath pathForButton(PathButton* btn);

private:
    QToolButton* scrollToStart_;
    QToolButton* scrollToEnd_;
    QScrollArea* scrollArea_;
    QWidget* buttonsWidget_;
    QHBoxLayout* buttonsLayout_;
    PathEdit* tempPathEdit_;

    Fm::FilePath currentPath_;   // currently active path
};

} // namespace Fm

#endif // FM_PATHBAR_H