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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003-2005 The ScummVM Team
*
* 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(__PALMOS_TRAPS__)
#include "stdafx.h"
#include "../fs.h"
#include <stdio.h>
#include <stdlib.h>
/*
* Implementation of the ScummVM file system API based on PalmOS VFS API.
*/
class PalmOSFilesystemNode : public AbstractFilesystemNode {
protected:
String _displayName;
bool _isDirectory;
bool _isValid;
bool _isPseudoRoot;
String _path;
public:
PalmOSFilesystemNode();
PalmOSFilesystemNode(const Char *path);
PalmOSFilesystemNode(const PalmOSFilesystemNode *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) const;
virtual AbstractFilesystemNode *parent() const;
private:
static void addFile (FSList &list, ListMode mode, const Char *base, FileInfoType* find_data);
};
void PalmOSFilesystemNode::addFile(FSList &list, ListMode mode, const char *base, FileInfoType* find_data) {
PalmOSFilesystemNode entry;
bool isDirectory;
isDirectory = (find_data->attributes & vfsFileAttrDirectory);
if ((!isDirectory && mode == kListDirectoriesOnly) ||
(isDirectory && mode == kListFilesOnly))
return;
entry._isDirectory = isDirectory;
entry._displayName = find_data->nameP;
entry._path = base;
entry._path += find_data->nameP;
if (entry._isDirectory)
entry._path += "/";
entry._isValid = true;
entry._isPseudoRoot = false;
list.push_back(wrap(new PalmOSFilesystemNode(&entry)));
}
AbstractFilesystemNode *FilesystemNode::getRoot() {
return new PalmOSFilesystemNode();
}
PalmOSFilesystemNode::PalmOSFilesystemNode() {
_isDirectory = true;
_displayName = "Root";
_isValid = true;
_path = "/";
_isPseudoRoot = true;
}
PalmOSFilesystemNode::PalmOSFilesystemNode(const PalmOSFilesystemNode *node) {
_displayName = node->_displayName;
_isDirectory = node->_isDirectory;
_isValid = node->_isValid;
_isPseudoRoot = node->_isPseudoRoot;
_path = node->_path;
}
FSList PalmOSFilesystemNode::listDir(ListMode mode) const {
FSList myList;
Err e;
Char nameP[256];
FileInfoType desc;
FileRef handle;
UInt32 dirIterator = expIteratorStart;
desc.nameP = nameP;
desc.nameBufLen = 256;
e = VFSFileOpen(gVars->volRefNum, _path.c_str(), vfsModeRead, &handle);
if (e)
return myList;
while(dirIterator != expIteratorStop) {
e = VFSDirEntryEnumerate(handle, &dirIterator, &desc);
if (!e) {
addFile(myList, mode, _path.c_str(), &desc);
}
}
VFSFileClose(handle);
return myList;
}
const char *lastPathComponent(const Common::String &str) {
const char *start = str.c_str();
const char *cur = start + str.size() - 2;
while (cur > start && *cur != '/') {
--cur;
}
return cur+1;
}
AbstractFilesystemNode *PalmOSFilesystemNode::parent() const {
PalmOSFilesystemNode *p = 0;
if (!_isPseudoRoot) {
const char *start = _path.c_str();
const char *end = lastPathComponent(_path);
p = new PalmOSFilesystemNode();
p->_path = String(start, end - start);
p->_isValid = true;
p->_isDirectory = true;
p->_displayName = lastPathComponent(p->_path);
p->_isPseudoRoot =(p->_path == "/");
}
return p;
}
#endif // __PALMOS_TRAPS__
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