VirtualDesktopManager.h

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// SPDX-FileCopyrightText: 2026 fuddlesworth
// SPDX-License-Identifier: LGPL-2.1-or-later
 
#pragma once
 
#include <PhosphorEngine/IVirtualDesktopManager.h>
#include <phosphorworkspaces_export.h>
#include <QHash>
#include <QObject>
#include <QString>
#include <QStringList>
 
class QDBusInterface;
class QDBusMessage;
 
namespace PhosphorWorkspaces {
 
class PHOSPHORWORKSPACES_EXPORT VirtualDesktopManager : public QObject, public PhosphorEngine::IVirtualDesktopManager
{
    Q_OBJECT
 
public:
    explicit VirtualDesktopManager(QObject* parent = nullptr);
    ~VirtualDesktopManager() override;
 
    bool init();
    void start();
    void stop();
 
    int currentDesktop() const override;
    int currentDesktopForScreen(const QString& screenId) const override;
    bool perScreenModeActive() const override;
 
    void updateScreenDesktop(const QString& screenId, int desktop);
 
    void removeScreenDesktop(const QString& screenId);
 
    void setCurrentDesktop(int desktop);
    int desktopCount() const;
    int desktopRows() const;
    QStringList desktopNames() const;
 
Q_SIGNALS:
    void currentDesktopChanged(int desktop);
    void desktopCountChanged(int count);
    void screenDesktopChanged(const QString& screenId, int desktop);
 
private Q_SLOTS:
    void onNumberOfDesktopsChanged(int count);
    void refreshFromKWin();
    void onKWinCurrentChanged(const QString& desktopId);
    void onKWinDesktopCreated();
    void onKWinDesktopRemoved();
    void onKWinDesktopRowsChanged();
 
private:
    void initKWinDBus();
    void applyDesktopListReply(const QDBusMessage& reply, const QString& currentId);
    void clampScreenDesktopsToCount();
 
    QDBusInterface* m_kwinVDInterface = nullptr;
    bool m_running = false;
    bool m_useKWinDBus = false;
    int m_currentDesktop = 1;
    QHash<QString, int> m_screenDesktops;
    int m_desktopCount = 1;
    int m_desktopRows = 1;
    QStringList m_desktopNames;
    QStringList m_desktopIds;
    uint m_refreshGeneration = 0;
};
 
} // namespace PhosphorWorkspaces