kwin/kcmkwin/kwindesktop/desktopsmodel.h
Méven Car 790e717c82 [KCM/Desktop] Port from KQuickAddons::ConfigModule to ManagedConfigModule
Test Plan:
kcmshell5 kcm_kwin_virtualdesktops
kcm works as before

Reviewers: #kwin, ervin, crossi, zzag

Reviewed By: #kwin, ervin, zzag

Subscribers: zzag, bport, crossi, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D25881
2019-12-23 13:22:36 +01:00

134 lines
4 KiB
C++

/*
* Copyright (C) 2018 Eike Hein <hein@kde.org>
* Copyright (C) 2018 Marco Martin <mart@kde.org>
*
* 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 program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DESKTOPSMODEL_H
#define DESKTOPSMODEL_H
#include <QAbstractListModel>
#include "../virtualdesktopsdbustypes.h"
class QDBusArgument;
class QDBusMessage;
class QDBusServiceWatcher;
namespace KWin
{
/**
* @short An item model around KWin's D-Bus API for virtual desktops.
*
* The model initially gets the state from KWin and populates.
*
* As long as the user makes no changes, KWin-side changes are directly
* exposed in the model.
*
* If the user makes changes (see the `userModified` property), it stops
* exposing KWin-side changes live, but it keeps track of the KWin-side
* changes, so it can figure out and apply the delta when `syncWithServer`
* is called.
*
* When KWin-side changes happen while the model is user-modified, the
* model signals this via the `serverModified` property. A call to
* `syncWithServer` will overwrite the KWin-side changes.
*
* After synchronization, the model tracks Kwin-side changes again,
* until the user makes further changes.
*
* @author Eike Hein <hein@kde.org>
*/
class DesktopsModel : public QAbstractListModel
{
Q_OBJECT
Q_PROPERTY(bool ready READ ready NOTIFY readyChanged)
Q_PROPERTY(QString error READ error NOTIFY errorChanged)
Q_PROPERTY(bool userModified READ userModified NOTIFY userModifiedChanged)
Q_PROPERTY(bool serverModified READ serverModified NOTIFY serverModifiedChanged)
Q_PROPERTY(int rows READ rows WRITE setRows NOTIFY rowsChanged)
public:
enum AdditionalRoles {
Id = Qt::UserRole + 1,
DesktopRow
};
Q_ENUM(AdditionalRoles)
explicit DesktopsModel(QObject *parent = nullptr);
~DesktopsModel() override;
QHash<int, QByteArray> roleNames() const override;
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
int rowCount(const QModelIndex &parent = {}) const override;
bool ready() const;
QString error() const;
bool userModified() const;
bool serverModified() const;
int rows() const;
void setRows(int rows);
Q_INVOKABLE void createDesktop(const QString &name);
Q_INVOKABLE void removeDesktop(const QString &id);
Q_INVOKABLE void setDesktopName(const QString &id, const QString &name);
Q_INVOKABLE void syncWithServer();
bool needsSave() const;
void load();
void defaults();
bool isDefaults() const;
Q_SIGNALS:
void readyChanged() const;
void errorChanged() const;
void userModifiedChanged() const;
void serverModifiedChanged() const;
void rowsChanged() const;
protected Q_SLOTS:
void reset();
void getAllAndConnect(const QDBusMessage &msg);
void desktopCreated(const QString &id, const KWin::DBusDesktopDataStruct &data);
void desktopRemoved(const QString &id);
void desktopDataChanged(const QString &id, const KWin::DBusDesktopDataStruct &data);
void desktopRowsChanged(uint rows);
void updateModifiedState(bool server = false);
void handleCallError();
private:
QDBusServiceWatcher *m_serviceWatcher;
QString m_error;
bool m_userModified;
bool m_serverModified;
QStringList m_serverSideDesktops;
QHash<QString,QString> m_serverSideNames;
int m_serverSideRows;
QStringList m_desktops;
QHash<QString,QString> m_names;
int m_rows;
bool m_synchronizing;
};
}
#endif