1 files changed, 90 insertions, 0 deletions
diff --git a/src/plugins/coreplugin/session.h b/src/plugins/coreplugin/session.h
new file mode 100644
index 0000000000..30dc70edf4
--- /dev/null
+++ b/src/plugins/coreplugin/session.h
@@ -0,0 +1,90 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#pragma once
+
+#include "core_global.h"
+
+#include <utils/id.h>
+#include <utils/persistentsettings.h>
+
+#include <QDateTime>
+#include <QString>
+#include <QStringList>
+
+namespace Core {
+
+class CORE_EXPORT SessionManager : public QObject
+{
+    Q_OBJECT
+
+public:
+    SessionManager();
+    ~SessionManager() override;
+
+    static SessionManager *instance();
+
+    // higher level session management
+    static QString activeSession();
+    static QString lastSession();
+    static QString startupSession();
+    static QStringList sessions();
+    static QDateTime sessionDateTime(const QString &session);
+    static QDateTime lastActiveTime(const QString &session);
+
+    static bool createSession(const QString &session);
+
+    static bool confirmSessionDelete(const QStringList &sessions);
+    static bool deleteSession(const QString &session);
+    static void deleteSessions(const QStringList &sessions);
+
+    static bool cloneSession(const QString &original, const QString &clone);
+    static bool renameSession(const QString &original, const QString &newName);
+    static void showSessionManager();
+
+    static Utils::FilePath sessionNameToFileName(const QString &session);
+
+    static bool isDefaultVirgin();
+    static bool isDefaultSession(const QString &session);
+
+    // Let other plugins store persistent values within the session file
+    // These are settings that are also saved and loaded at startup, and are taken over
+    // to the default session when switching from implicit to explicit default session
+    static void setValue(const QString &name, const QVariant &value);
+    static QVariant value(const QString &name);
+
+    // These are settings that are specific to a session and are not loaded
+    // at startup and also not taken over to the default session when switching from implicit
+    static void setSessionValue(const QString &name, const QVariant &value);
+    static QVariant sessionValue(const QString &name, const QVariant &defaultValue = {});
+
+    static bool isLoadingSession();
+    static void markSessionFileDirty();
+
+    static void sessionLoadingProgress();
+    static void addSessionLoadingSteps(int steps);
+
+    static bool loadSession(const QString &session, bool initial = false);
+    static bool saveSession();
+
+signals:
+    void startupSessionRestored();
+    void aboutToUnloadSession(QString sessionName);
+    // Sent during session loading, after the values of the session are available via value() and
+    // sessionValue. Use to restore values from the new session
+    void aboutToLoadSession(QString sessionName);
+    void sessionLoaded(QString sessionName);
+    void aboutToSaveSession();
+
+    void sessionCreated(const QString &name);
+    void sessionRenamed(const QString &oldName, const QString &newName);
+    void sessionRemoved(const QString &name);
+
+public: // internal
+    static bool isStartupSessionRestored();
+
+private:
+    static void saveActiveMode(Utils::Id mode);
+};
+
+} // namespace Core