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godot/drivers/windows/dir_access_windows.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

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9.3 KiB
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/*************************************************************************/
/* dir_access_windows.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#if defined(WINDOWS_ENABLED)
#include "dir_access_windows.h"
#include "os/memory.h"
#include <windows.h>
#include <wchar.h>
#include <stdio.h>
#include "print_string.h"
#ifdef WINRT_ENABLED
#include <Synchapi.h>
#include <collection.h>
#include <ppltasks.h>
#endif
/*
[03:57] <reduz> yessopie, so i dont havemak to rely on unicows
[03:58] <yessopie> reduz- yeah, all of the functions fail, and then you can call GetLastError () which will return 120
[03:58] <drumstick> CategoryApl, hehe, what? :)
[03:59] <CategoryApl> didn't Verona lead to some trouble
[03:59] <yessopie> 120 = ERROR_CALL_NOT_IMPLEMENTED
[03:59] <yessopie> (you can use that constant if you include winerr.h)
[03:59] <CategoryApl> well answer with winning a compo
[04:02] <yessopie> if ( SetCurrentDirectoryW ( L"." ) == FALSE && GetLastError () == ERROR_CALL_NOT_IMPLEMENTED ) { use ANSI }
*/
struct DirAccessWindowsPrivate {
HANDLE h; //handle for findfirstfile
WIN32_FIND_DATA f;
WIN32_FIND_DATAW fu; //unicode version
};
// CreateFolderAsync
bool DirAccessWindows::list_dir_begin() {
_cisdir=false;
_cishidden=false;
list_dir_end();
p->h = FindFirstFileExW((current_dir+"\\*").c_str(), FindExInfoStandard, &p->fu, FindExSearchNameMatch, NULL, 0);
return (p->h==INVALID_HANDLE_VALUE);
}
String DirAccessWindows::get_next() {
if (p->h==INVALID_HANDLE_VALUE)
return "";
_cisdir=(p->fu.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
_cishidden=(p->fu.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN);
String name=p->fu.cFileName;
if (FindNextFileW(p->h, &p->fu) == 0) {
FindClose(p->h);
p->h=INVALID_HANDLE_VALUE;
}
return name;
}
bool DirAccessWindows::current_is_dir() const {
return _cisdir;
}
bool DirAccessWindows::current_is_hidden() const {
return _cishidden;
}
void DirAccessWindows::list_dir_end() {
if (p->h!=INVALID_HANDLE_VALUE) {
FindClose(p->h);
p->h=INVALID_HANDLE_VALUE;
}
}
int DirAccessWindows::get_drive_count() {
return drive_count;
}
String DirAccessWindows::get_drive(int p_drive) {
if (p_drive<0 || p_drive>=drive_count)
return "";
return String::chr(drives[p_drive])+":";
}
Error DirAccessWindows::change_dir(String p_dir) {
GLOBAL_LOCK_FUNCTION
#ifdef WINRT_ENABLED
p_dir = fix_path(p_dir);
current_dir = normalize_path(p_dir);
return OK;
#else
p_dir=fix_path(p_dir);
wchar_t real_current_dir_name[2048];
GetCurrentDirectoryW(2048,real_current_dir_name);
String prev_dir=real_current_dir_name;
SetCurrentDirectoryW(current_dir.c_str());
bool worked=(SetCurrentDirectoryW(p_dir.c_str())!=0);
String base = _get_root_path();
if (base!="") {
GetCurrentDirectoryW(2048,real_current_dir_name);
String new_dir;
new_dir = String(real_current_dir_name).replace("\\","/");
if (!new_dir.begins_with(base)) {
worked=false;
}
}
if (worked) {
GetCurrentDirectoryW(2048,real_current_dir_name);
current_dir=real_current_dir_name; // TODO, utf8 parser
current_dir=current_dir.replace("\\","/");
} //else {
SetCurrentDirectoryW(prev_dir.c_str());
//}
return worked?OK:ERR_INVALID_PARAMETER;
#endif
}
Error DirAccessWindows::make_dir(String p_dir) {
GLOBAL_LOCK_FUNCTION
#ifdef WINRT_ENABLED
return ERR_CANT_CREATE;
#else
if (p_dir.is_rel_path())
p_dir=get_current_dir().plus_file(p_dir);
p_dir=fix_path(p_dir);
p_dir = p_dir.replace("/","\\");
bool success;
int err;
p_dir="\\\\?\\"+p_dir; //done according to
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa363855(v=vs.85).aspx
success=CreateDirectoryW(p_dir.c_str(), NULL);
err = GetLastError();
if (success) {
return OK;
};
if (err == ERROR_ALREADY_EXISTS || err == ERROR_ACCESS_DENIED) {
return ERR_ALREADY_EXISTS;
};
return ERR_CANT_CREATE;
#endif
}
String DirAccessWindows::get_current_dir() {
String base = _get_root_path();
if (base!="") {
String bd = current_dir.replace("\\","/").replace_first(base,"");
if (bd.begins_with("/"))
return _get_root_string()+bd.substr(1,bd.length());
else
return _get_root_string()+bd;
} else {
}
return current_dir;
}
bool DirAccessWindows::file_exists(String p_file) {
GLOBAL_LOCK_FUNCTION
if (!p_file.is_abs_path())
p_file=get_current_dir().plus_file(p_file);
p_file=fix_path(p_file);
//p_file.replace("/","\\");
//WIN32_FILE_ATTRIBUTE_DATA fileInfo;
DWORD fileAttr;
fileAttr = GetFileAttributesW(p_file.c_str());
if (INVALID_FILE_ATTRIBUTES == fileAttr)
return false;
return !(fileAttr&FILE_ATTRIBUTE_DIRECTORY);
}
bool DirAccessWindows::dir_exists(String p_dir) {
GLOBAL_LOCK_FUNCTION
if (p_dir.is_rel_path())
p_dir=get_current_dir().plus_file(p_dir);
p_dir=fix_path(p_dir);
//p_dir.replace("/","\\");
//WIN32_FILE_ATTRIBUTE_DATA fileInfo;
DWORD fileAttr;
fileAttr = GetFileAttributesW(p_dir.c_str());
if (INVALID_FILE_ATTRIBUTES == fileAttr)
return false;
return (fileAttr&FILE_ATTRIBUTE_DIRECTORY);
}
Error DirAccessWindows::rename(String p_path,String p_new_path) {
if (p_path.is_rel_path())
p_path=get_current_dir().plus_file(p_path);
p_path=fix_path(p_path);
if (p_new_path.is_rel_path())
p_new_path=get_current_dir().plus_file(p_new_path);
p_new_path=fix_path(p_new_path);
if (file_exists(p_new_path)) {
if (remove(p_new_path) != OK) {
return FAILED;
};
};
return ::_wrename(p_path.c_str(),p_new_path.c_str())==0?OK:FAILED;
}
Error DirAccessWindows::remove(String p_path) {
if (p_path.is_rel_path())
p_path=get_current_dir().plus_file(p_path);
p_path=fix_path(p_path);
printf("erasing %s\n",p_path.utf8().get_data());
//WIN32_FILE_ATTRIBUTE_DATA fileInfo;
//DWORD fileAttr = GetFileAttributesExW(p_path.c_str(), GetFileExInfoStandard, &fileInfo);
DWORD fileAttr;
fileAttr = GetFileAttributesW(p_path.c_str());
if (INVALID_FILE_ATTRIBUTES == fileAttr)
return FAILED;
if ((fileAttr&FILE_ATTRIBUTE_DIRECTORY))
return ::_wrmdir(p_path.c_str())==0?OK:FAILED;
else
return ::_wunlink(p_path.c_str())==0?OK:FAILED;
}
/*
FileType DirAccessWindows::get_file_type(const String& p_file) const {
wchar_t real_current_dir_name[2048];
GetCurrentDirectoryW(2048,real_current_dir_name);
String prev_dir=real_current_dir_name;
bool worked SetCurrentDirectoryW(current_dir.c_str());
DWORD attr;
if (worked) {
WIN32_FILE_ATTRIBUTE_DATA fileInfo;
attr = GetFileAttributesExW(p_file.c_str(), GetFileExInfoStandard, &fileInfo);
}
SetCurrentDirectoryW(prev_dir.c_str());
if (!worked)
return FILE_TYPE_NONE;
return (attr&FILE_ATTRIBUTE_DIRECTORY)?FILE_TYPE_
}
*/
size_t DirAccessWindows::get_space_left() {
uint64_t bytes = 0;
if (!GetDiskFreeSpaceEx(NULL,(PULARGE_INTEGER)&bytes,NULL,NULL))
return 0;
//this is either 0 or a value in bytes.
return (size_t)bytes;
}
DirAccessWindows::DirAccessWindows() {
p = memnew( DirAccessWindowsPrivate );
p->h=INVALID_HANDLE_VALUE;
current_dir=".";
drive_count=0;
#ifdef WINRT_ENABLED
Windows::Storage::StorageFolder ^install_folder = Windows::ApplicationModel::Package::Current->InstalledLocation;
change_dir(install_folder->Path->Data());
#else
DWORD mask=GetLogicalDrives();
for (int i=0;i<MAX_DRIVES;i++) {
if (mask&(1<<i)) { //DRIVE EXISTS
drives[drive_count]='a'+i;
drive_count++;
}
}
change_dir(".");
#endif
}
DirAccessWindows::~DirAccessWindows() {
memdelete( p );
}
#endif //windows DirAccess support
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