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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2003 The ScummVM project
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*/
#if defined(UNIX) || defined (__GP32__) //ph0x
#include "../fs.h"
#ifdef MACOSX
#include <sys/types.h>
#endif
#include <sys/stat.h>
#include <dirent.h>
#include <stdio.h>
#ifdef __GP32__ //ph0x FIXME: implement and move to portdefs.h
#define opendir(x) (0)
#define readdir(x) (0)
#define closedir(x) (0)
#endif
/*
* Implementation of the ScummVM file system API based on POSIX.
*/
class POSIXFilesystemNode : public FilesystemNode {
protected:
String _displayName;
bool _isDirectory;
bool _isValid;
String _path;
public:
POSIXFilesystemNode();
POSIXFilesystemNode(const String &path);
POSIXFilesystemNode(const POSIXFilesystemNode *node);
virtual String displayName() const { return _displayName; }
virtual bool isValid() const { return _isValid; }
virtual bool isDirectory() const { return _isDirectory; }
virtual String path() const { return _path; }
virtual FSList *listDir(ListMode mode = kListDirectoriesOnly) const;
virtual FilesystemNode *parent() const;
virtual FilesystemNode *clone() const { return new POSIXFilesystemNode(this); }
};
FilesystemNode *FilesystemNode::getRoot() {
return new POSIXFilesystemNode();
}
POSIXFilesystemNode::POSIXFilesystemNode() {
_displayName = "/";
_isValid = true;
_isDirectory = true;
_path = "/";
}
/*
POSIXFilesystemNode::POSIXFilesystemNode(const String &p) {
// TODO - extract last component from path
_displayName = p;
// TODO - check whether it is a directory, and whether the file actually exists
_isValid = true;
_isDirectory = true;
_path = p;
}
*/
POSIXFilesystemNode::POSIXFilesystemNode(const POSIXFilesystemNode *node) {
_displayName = node->_displayName;
_isValid = node->_isValid;
_isDirectory = node->_isDirectory;
_path = node->_path;
}
FSList *POSIXFilesystemNode::listDir(ListMode mode) const {
assert(_isDirectory);
DIR *dirp = opendir(_path.c_str());
struct stat st;
struct dirent *dp;
FSList *myList = new FSList();
if (dirp == NULL) return myList;
// ... loop over dir entries using readdir
while ((dp = readdir(dirp)) != NULL) {
// Skip 'invisible' files
if (dp->d_name[0] == '.')
continue;
POSIXFilesystemNode entry;
entry._displayName = dp->d_name;
entry._path = _path;
entry._path += dp->d_name;
if (stat(entry._path.c_str(), &st))
continue;
entry._isDirectory = S_ISDIR(st.st_mode);
// Honor the chosen mode
if ((mode == kListFilesOnly && entry._isDirectory) ||
(mode == kListDirectoriesOnly && !entry._isDirectory))
continue;
if (entry._isDirectory)
entry._path += "/";
myList->push_back(entry);
}
closedir(dirp);
return myList;
}
const char *lastPathComponent(const ScummVM::String &str) {
const char *start = str.c_str();
const char *cur = start + str.size() - 2;
while (cur > start && *cur != '/') {
--cur;
}
return cur+1;
}
FilesystemNode *POSIXFilesystemNode::parent() const {
POSIXFilesystemNode *p = new POSIXFilesystemNode();
// Root node is its own parent. Still we can't just return this
// as the GUI code will call delete on the old node.
if (_path != "/") {
const char *start = _path.c_str();
const char *end = lastPathComponent(_path);
p->_path = String(start, end - start);
p->_isValid = true;
p->_isDirectory = true;
p->_displayName = lastPathComponent(p->_path);
}
return p;
}
#endif // defined(UNIX)
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