explorer.hpp

#ifndef __FILEBROWSER__
#define __FILEBROWSER__

#include <string>
#include <vector>
#include <filesystem>
#include <sys/stat.h>
#include <dirent.h>
#include <unistd.h>

typedef std::vector<std::string> strvec;
typedef std::filesystem::path PathType;

typedef struct
{
	strvec		files;
	int		fileNum;
	strvec		directories;
	int		dirNum;
	std::string	currentDir;
	int		total;
} dirList_t;

typedef struct DirEntry {
	DirEntry(const std::string& name, bool directory) : filename(name), directory(directory) {}
	std::string filename;
	bool directory;
} DirEntry_t;

enum {
	EXPATH_NOEXIST = 1,   // Directory does not exist
	EXPATH_EMPTY = 2,     // The given path is an empty string
	EXPATH_EXIT = 200     // Attempted to access beyond root dir
};

class Explorer
{
public:
	Explorer(const std::string& root);
	~Explorer() {}
	std::string Item(uint32_t index);
	bool IsDir(uint32_t index);
	DirEntry GetEntry(uint32_t index);
	std::string GetAbsolutePath(uint32_t index);
	int ChangeTo(uint32_t index);
	int ChangeDir(const PathType path);
	int BackDir(void);
	void GotoRoot(void) { m_relativePath.clear(); LoadEntries(); }
	int Size(void) { return m_entries.size(); }
	std::string GetCurrentDir(void) { return m_rootDir / m_relativePath; }
	void SetExtFilter(const std::string& extension) {m_filteredExt = extension;}

private:
	int LoadEntries(void);
	PathType NormalizePath(const PathType& path);
	int CheckDir(const PathType& path);
	std::vector<DirEntry_t> m_entries;
	PathType m_rootDir;
	PathType m_relativePath;
	std::string m_filteredExt;
};

#endif