/*
  *contactlistview.h - base contact list widget class
  *Copyright (C) 2008-2010  Yandex LLC (Michail Pishchagin)
 *
  *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 library; if not, write to the Free Software
  *Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 */

#ifndef CONTACTLISTVIEW_H
#define CONTACTLISTVIEW_H

#include "hoverabletreeview.h"

#include <QPointer>

class QWidget;
class ContactListItem;
class ContactListItemMenu;
class QLineEdit;
class ContactListModel;

class ContactListView : public HoverableTreeView
{
    Q_OBJECT

public:
    ContactListView(QWidget *parent = nullptr);

    ContactListModel *realModel() const;
    QModelIndexList realIndexes(const QModelIndexList &indexes) const;
    QModelIndex realIndex(const QModelIndex &index) const;
    QModelIndexList proxyIndexes(const QModelIndexList &indexes) const;
    QModelIndex proxyIndex(const QModelIndex &index) const;
    ContactListItem *itemProxy(const QModelIndex &index) const;
    void setEditingIndex(const QModelIndex &index, bool editing) const;

    void activate(const QModelIndex &index);
    void toggleExpandedState(const QModelIndex &index);
    void ensureVisible(const QModelIndex &index);

    // reimplemented
    void setModel(QAbstractItemModel *model);

public slots:
    virtual void rename();

signals:
    void realExpanded(const QModelIndex&);
    void realCollapsed(const QModelIndex&);

protected:
    // reimplemented
    bool viewportEvent(QEvent *event);
    void closeEditor(QWidget *editor, QAbstractItemDelegate::EndEditHint hint);

    virtual void showToolTip(const QModelIndex &index, const QPoint &globalPos) const;

protected slots:
    virtual void itemActivated(const QModelIndex &index);

    virtual void showOfflineChanged();
    void updateGroupExpandedState();
    virtual void itemExpanded(const QModelIndex&);
    virtual void itemCollapsed(const QModelIndex&);

    // reimplamented
    virtual void selectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
    virtual void focusInEvent(QFocusEvent *event);
    virtual void focusOutEvent(QFocusEvent *event);

protected:
    // reimplamented
    void contextMenuEvent(QContextMenuEvent*);
    void drawBranches(QPainter*, const QRect&, const QModelIndex&) const;
    void keyPressEvent(QKeyEvent*);
    void resizeEvent(QResizeEvent*);
    void rowsInserted(const QModelIndex &parent, int start, int end) override;

    QLineEdit *currentEditor() const;

    bool isContextMenuVisible();
    virtual ContactListItemMenu *createContextMenuFor(ContactListItem *item) const;

    virtual void addContextMenuActions();
    virtual void removeContextMenuActions();
    virtual void addContextMenuAction(QAction *action);
    virtual void updateContextMenu();

private:
    QPointer<ContactListItemMenu> contextMenu_;
    bool contextMenuActive_;
};

#endif
