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 /* This file is part of the KDE project
    Copyright (C) 2018 Jarosław Staniek <staniek@kde.org>
 
    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 KPROPERTYEDITORITEMEVENT_H
 #define KPROPERTYEDITORITEMEVENT_H
 
 #include "kpropertywidgets_export.h"
 
 #include <QVariant>
 
 #include <QScopedPointer>
 
 class KProperty;
 class QVariant;
 
 /**
  * @brief The KPropertyEditorItemEvent class describes request for handling a single property
  *        editor widget item's event
  *
  * Handling editor events is useful to customize behavior of the property editors.
  *
  * For example Url property editor can offer overriding the default file dialog.
  *
  * Currently supported events are:
  *  - "getOpenFileUrl" for editors of KProperty::Url. Overrides the default file dialog for files
  *    or directories. For this event own file dialog can be displayed. In this case event's result
  *    should be set to result of the file dialog. Note that even if the dialog has been canceled
  *    result should be set (to empty QUrl), otherwise the property editor will not "realize" that
  *    the dialog has been overriden and will display the built-in dialog.
  *    It is recommended to take values of the "fileMode" and "confirmOverwrites" property options
  *    into account and display file dialog in appropriate mode. See KProperty::setOption() for
  *    documentation of property options.
  *    This event provides the following parameters: "url" equal to QUrl value of the editor for use
  *    in the dialog as default value; "caption" equal to the default window's caption for
  *    the dialog, depending on variant of the dialog, e.g. "Select Existing File" if "fileMode"
  *    option is "existingfile".
  *
  * @see KPropertyEditorView::handlePropertyEditorItemEvent()
  *
  * @since 3.2
  */
 class KPROPERTYWIDGETS_EXPORT KPropertyEditorItemEvent
 {
 public:
     /**
      * Creates a new request object.
      *
      * @param property Property related to the request
      * @param name Name of the event
      * @param parameters Parameters of the event
      */
     KPropertyEditorItemEvent(const KProperty &property, const QString &name,
                              const QVariantMap &parameters);
 
     ~KPropertyEditorItemEvent();
 
     /**
      * @brief Returns property assiciated with editor which requests the override
      */
     const KProperty *property() const;
 
     /**
      * @brief Returns name of event that requests the override
      */
     QString name() const;
 
     /**
      * @brief Returns zero or more parameters associated with this specific event
      *
      * See description of the KPropertyEditorItemEvent class for parameters supported by given
      * events.
      */
     QVariantMap parameters() const;
 
     /**
      * @brief Sets result of the event
      *
      * In order to override behavior of the editor users have to call this method even if the
      * result is null. Editor will note that and accept the override. For example, URL editor will
      * not attempt to display its built-in file dialog assuming that custom dialog has been used.
      *
      * Once setResult() is called for given event object, there is no way to unset the result.
      * it is only possible to replace the result with other.
      */
     void setResult(const QVariant &result);
 
     /**
      * @brief Returns result set by the user of the editor
      *
      * It is null until user sets result with setResult().
      *
      * @see hasResult()
      */
     QVariant result() const;
 
     /**
      * @brief Returns @c true if event's result has been set with setResult()
      *
      * @see result()
      */
     bool hasResult() const;
 
 private:
     Q_DISABLE_COPY(KPropertyEditorItemEvent)
     class Private;
     QScopedPointer<Private> const d;
 };
 
 #endif