/*
 * This file is part of KDevelop
 *
 * Copyright 2007 David Nolden <david.nolden.kdevelop@art-master.de>
 * Copyright 2016 Kevin Funk <kfunk@kde.org>
 *
 * This program 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 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 KDEVPLATFORM_PLUGIN_QUICKOPENWIDGET_H
#define KDEVPLATFORM_PLUGIN_QUICKOPENWIDGET_H

#include "ui_quickopenwidget.h"

#include <QMenu>
#include <QTime>
#include <QTimer>

class QuickOpenModel;

class QLineEdit;

/// Will delete itself once the dialog is closed, so use QPointer when referencing it permanently
class QuickOpenWidget : public QMenu {
  Q_OBJECT
  public:
  /**
   * @param initialItems List of items that should initially be enabled in the quickopen-list. If empty, all are enabled.
   * @param initialScopes List of scopes that should initially be enabled in the quickopen-list. If empty, all are enabled.
   * @param listOnly when this is true, the given items will be listed, but all filtering using checkboxes is disabled.
   * @param noSearchField when this is true, no search-line is shown.
   * */
  QuickOpenWidget( QString title, QuickOpenModel* model, const QStringList& initialItems, const QStringList& initialScopes, bool listOnly = false, bool noSearchField = false );
  ~QuickOpenWidget() override;
  void setPreselectedText(const QString &text);
  void prepareShow();

  void setAlternativeSearchField(QLineEdit* alterantiveSearchField);

  //Shows OK + Cancel. By default they are hidden
  void showStandardButtons(bool show);
    void showSearchField(bool show);

  signals:
  void scopesChanged( const QStringList& scopes );
  void itemsChanged( const QStringList& scopes );
  void ready();

  private slots:
  void callRowSelected();

  void updateTimerInterval( bool cheapFilterChange );

  void accept();
  void textChanged( const QString& str );
  void updateProviders();
  void doubleClicked ( const QModelIndex & index );

  void applyFilter();

  private:
  void showEvent(QShowEvent *) override;

  bool eventFilter ( QObject * watched, QEvent * event ) override;

  void avoidMenuAltFocus();

  QuickOpenModel* m_model;
  bool m_expandedTemporary, m_hadNoCommandSinceAlt;
  QTime m_altDownTime;
  QString m_preselectedText;
  QTimer m_filterTimer;
  QString m_filter;
  public:
  Ui::QuickOpenWidget ui;

  friend class QuickOpenWidgetDialog;
  friend class QuickOpenPlugin;
  friend class QuickOpenLineEdit;
};

class QuickOpenWidgetDialog : public QObject {
  Q_OBJECT
  public:
    QuickOpenWidgetDialog( QString title, QuickOpenModel* model, const QStringList& initialItems, const QStringList& initialScopes, bool listOnly = false, bool noSearchField = false );
    ~QuickOpenWidgetDialog() override;

    /// Shows the dialog
    void run();

    QuickOpenWidget* widget() const {
      return m_widget;
    }
  private:
  QDialog* m_dialog; /// @warning m_dialog is also the parent
  QuickOpenWidget* m_widget;
};

#endif
