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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#if defined(WIN32)
// Disable symbol overrides so that we can use system headers.
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "backends/fs/windows/windows-fs.h"
#include "backends/fs/stdiostream.h"
// F_OK, R_OK and W_OK are not defined under MSVC, so we define them here
// For more information on the modes used by MSVC, check:
// http://msdn2.microsoft.com/en-us/library/1w06ktdy(VS.80).aspx
#ifndef F_OK
#define F_OK 0
#endif
#ifndef R_OK
#define R_OK 4
#endif
#ifndef W_OK
#define W_OK 2
#endif
bool WindowsFilesystemNode::exists() const {
return _access(_path.c_str(), F_OK) == 0;
}
bool WindowsFilesystemNode::isReadable() const {
return _access(_path.c_str(), R_OK) == 0;
}
bool WindowsFilesystemNode::isWritable() const {
return _access(_path.c_str(), W_OK) == 0;
}
void WindowsFilesystemNode::addFile(AbstractFSList &list, ListMode mode, const char *base, bool hidden, WIN32_FIND_DATA* find_data) {
WindowsFilesystemNode entry;
char *asciiName = toAscii(find_data->cFileName);
bool isDirectory;
// Skip local directory (.) and parent (..)
if (!strcmp(asciiName, ".") || !strcmp(asciiName, ".."))
return;
// Skip hidden files if asked
if ((find_data->dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) && !hidden)
return;
isDirectory = (find_data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? true : false);
if ((!isDirectory && mode == Common::FSNode::kListDirectoriesOnly) ||
(isDirectory && mode == Common::FSNode::kListFilesOnly))
return;
entry._isDirectory = isDirectory;
entry._displayName = asciiName;
entry._path = base;
entry._path += asciiName;
if (entry._isDirectory)
entry._path += "\\";
entry._isValid = true;
entry._isPseudoRoot = false;
list.push_back(new WindowsFilesystemNode(entry));
}
char* WindowsFilesystemNode::toAscii(TCHAR *str) {
#ifndef UNICODE
return (char *)str;
#else
static char asciiString[MAX_PATH];
WideCharToMultiByte(CP_ACP, 0, str, _tcslen(str) + 1, asciiString, sizeof(asciiString), NULL, NULL);
return asciiString;
#endif
}
const TCHAR* WindowsFilesystemNode::toUnicode(const char *str) {
#ifndef UNICODE
return (const TCHAR *)str;
#else
static TCHAR unicodeString[MAX_PATH];
MultiByteToWideChar(CP_ACP, 0, str, strlen(str) + 1, unicodeString, sizeof(unicodeString) / sizeof(TCHAR));
return unicodeString;
#endif
}
WindowsFilesystemNode::WindowsFilesystemNode() {
_isDirectory = true;
#ifndef _WIN32_WCE
// Create a virtual root directory for standard Windows system
_isValid = false;
_path = "";
_isPseudoRoot = true;
#else
_displayName = "Root";
// No need to create a pseudo root directory on Windows CE
_isValid = true;
_path = "\\";
_isPseudoRoot = false;
#endif
}
WindowsFilesystemNode::WindowsFilesystemNode(const Common::String &p, const bool currentDir) {
if (currentDir) {
char path[MAX_PATH];
GetCurrentDirectory(MAX_PATH, path);
_path = path;
} else {
assert(p.size() > 0);
_path = p;
}
_displayName = lastPathComponent(_path, '\\');
// Check whether it is a directory, and whether the file actually exists
DWORD fileAttribs = GetFileAttributes(toUnicode(_path.c_str()));
if (fileAttribs == INVALID_FILE_ATTRIBUTES) {
_isDirectory = false;
_isValid = false;
} else {
_isDirectory = ((fileAttribs & FILE_ATTRIBUTE_DIRECTORY) != 0);
_isValid = true;
// Add a trailing slash, if necessary.
if (_isDirectory && _path.lastChar() != '\\') {
_path += '\\';
}
}
_isPseudoRoot = false;
}
AbstractFSNode *WindowsFilesystemNode::getChild(const Common::String &n) const {
assert(_isDirectory);
// Make sure the string contains no slashes
assert(!n.contains('/'));
Common::String newPath(_path);
if (_path.lastChar() != '\\')
newPath += '\\';
newPath += n;
return new WindowsFilesystemNode(newPath, false);
}
bool WindowsFilesystemNode::getChildren(AbstractFSList &myList, ListMode mode, bool hidden) const {
assert(_isDirectory);
if (_isPseudoRoot) {
#ifndef _WIN32_WCE
// Drives enumeration
TCHAR drive_buffer[100];
GetLogicalDriveStrings(sizeof(drive_buffer) / sizeof(TCHAR), drive_buffer);
for (TCHAR *current_drive = drive_buffer; *current_drive;
current_drive += _tcslen(current_drive) + 1) {
WindowsFilesystemNode entry;
char drive_name[2];
drive_name[0] = toAscii(current_drive)[0];
drive_name[1] = '\0';
entry._displayName = drive_name;
entry._isDirectory = true;
entry._isValid = true;
entry._isPseudoRoot = false;
entry._path = toAscii(current_drive);
myList.push_back(new WindowsFilesystemNode(entry));
}
#endif
}
else {
// Files enumeration
WIN32_FIND_DATA desc;
HANDLE handle;
char searchPath[MAX_PATH + 10];
sprintf(searchPath, "%s*", _path.c_str());
handle = FindFirstFile(toUnicode(searchPath), &desc);
if (handle == INVALID_HANDLE_VALUE)
return false;
addFile(myList, mode, _path.c_str(), hidden, &desc);
while (FindNextFile(handle, &desc))
addFile(myList, mode, _path.c_str(), hidden, &desc);
FindClose(handle);
}
return true;
}
AbstractFSNode *WindowsFilesystemNode::getParent() const {
assert(_isValid || _isPseudoRoot);
if (_isPseudoRoot)
return 0;
WindowsFilesystemNode *p = new WindowsFilesystemNode();
if (_path.size() > 3) {
const char *start = _path.c_str();
const char *end = lastPathComponent(_path, '\\');
p = new WindowsFilesystemNode();
p->_path = Common::String(start, end - start);
p->_isValid = true;
p->_isDirectory = true;
p->_displayName = lastPathComponent(p->_path, '\\');
p->_isPseudoRoot = false;
}
return p;
}
Common::SeekableReadStream *WindowsFilesystemNode::createReadStream() {
return StdioStream::makeFromPath(getPath(), false);
}
Common::WriteStream *WindowsFilesystemNode::createWriteStream() {
return StdioStream::makeFromPath(getPath(), true);
}
bool WindowsFilesystemNode::create(bool isDirectoryFlag) {
bool success;
if (isDirectoryFlag) {
success = CreateDirectory(toUnicode(_path.c_str()), NULL) != 0;
} else {
success = CreateFile(toUnicode(_path.c_str()), GENERIC_READ|GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL) != INVALID_HANDLE_VALUE;
}
if (success) {
//this piece is copied from constructor, it checks that file exists and detects whether it's a directory
DWORD fileAttribs = GetFileAttributes(toUnicode(_path.c_str()));
if (fileAttribs != INVALID_FILE_ATTRIBUTES) {
_isDirectory = ((fileAttribs & FILE_ATTRIBUTE_DIRECTORY) != 0);
_isValid = true;
// Add a trailing slash, if necessary.
if (_isDirectory && _path.lastChar() != '\\') {
_path += '\\';
}
if (_isDirectory != isDirectoryFlag) warning("failed to create %s: got %s", isDirectoryFlag ? "directory" : "file", _isDirectory ? "directory" : "file");
return _isDirectory == isDirectoryFlag;
}
warning("WindowsFilesystemNode: Create%s() was a success, but GetFileAttributes() indicates there is no such %s",
isDirectoryFlag ? "Directory" : "File", isDirectoryFlag ? "directory" : "file");
return false;
}
return false;
}
#endif //#ifdef WIN32
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