workspace_state.h

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#ifndef WORKSPACE_STATE_H
#define WORKSPACE_STATE_H
 
#include "config.h"
 
#include <QObject>
#include <QStringList>
#include <QFileInfo>
#include <QList>
#include <functional>

struct RecentFileInfo {
    QString filename;   
    qint64  size = 0;   
    bool accessible = false; 
};
 

class WorkspaceState : public QObject
{
    Q_OBJECT
 
public:
    static WorkspaceState *instance();

    virtual ~WorkspaceState();

    WorkspaceState(const WorkspaceState &) = delete;

    WorkspaceState &operator=(const WorkspaceState &) = delete;

    bool loadCommonState(QString *errorPath = nullptr, int *errorCode = nullptr);

    QString recentCommonFilePath() const;

    QString recentProfileFilePath() const;

    QString personalThemesPath() const;

    const QList<RecentFileInfo> &recentCaptureFiles() const;

    QStringList recentCaptureFilenames() const;

    void addRecentCaptureFile(const QString &filePath);

    void removeRecentCaptureFile(const QString &filePath);

    void clearRecentCaptureFiles();

    static bool isDevelopmentBuild();

    static bool isPortableApplication();
 
signals:
    void recentCaptureFilesChanged();

    void recentFileStatusChanged(const QString &filename);

    void stateLoaded();

    void stateSaved();
 
protected:
    explicit WorkspaceState(QObject *parent = nullptr);
 
private slots:
    void onFileStatusChecked(const QString &filename, qint64 size, bool accessible);
 
private:
    bool parseRecentFile(const QString &filePath,
                         std::function<void(const QString &key, const QString &value)> handler);

    void queueFileStatusCheck(const QString &filename);
 
    QList<RecentFileInfo> recent_capture_files_; 
 
    static constexpr const char *RECENT_COMMON_FILE_NAME  = "recent_common";  
    static constexpr const char *RECENT_PROFILE_FILE_NAME = "recent";          
    static constexpr const char *KEY_CAPTURE_FILE         = "recent.capture_file"; 
    static constexpr const char *THEMES_DIR_NAME          = "themes";          
};
 
#endif // WORKSPACE_STATE_H