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UI: FileUtil: Simplify realPath()

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Nodir Temirkhodjaev 2024-05-10 11:09:06 +03:00
parent ed758b7612
commit 6cbc10900f
1 changed files with 14 additions and 16 deletions
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28
src/ui/util/fileutil.cpp
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@ -264,25 +264,28 @@ inline bool isDevicePath(LPCWSTR path)
return path[0] == L'\\' && path[1] == L'\\' && path[2] == L'?' && path[3] == L'\\'; return path[0] == L'\\' && path[1] == L'\\' && path[2] == L'?' && path[3] == L'\\';
} }
inline void realPathByHandle(HANDLE fileHandle, QString &path) inline QString realPathByHandle(HANDLE fileHandle)
{ {
DWORD pathLen = GetFinalPathNameByHandleW(fileHandle, nullptr, 0, FILE_NAME_NORMALIZED); DWORD pathLen = GetFinalPathNameByHandleW(fileHandle, nullptr, 0, FILE_NAME_NORMALIZED);
if (pathLen == 0) if (pathLen == 0)
return; return {};
// pathLen includes the null terminator
QVarLengthArray<BYTE, 4096> pathBuf(pathLen * sizeof(wchar_t)); QVarLengthArray<BYTE, 4096> pathBuf(pathLen * sizeof(wchar_t));
LPWSTR pathData = (LPWSTR) pathBuf.data(); LPWSTR pathData = (LPWSTR) pathBuf.data();
if (!GetFinalPathNameByHandleW(fileHandle, pathData, pathLen, FILE_NAME_NORMALIZED)) pathLen = GetFinalPathNameByHandleW(fileHandle, pathData, pathLen, FILE_NAME_NORMALIZED);
return; if (pathLen == 0)
return {};
if (isDevicePath(pathData)) { // pathLen does not include the null terminator
constexpr int prefixLen = 4; constexpr int prefixLen = 4;
if (pathLen > prefixLen && isDevicePath(pathData)) {
pathData += prefixLen; pathData += prefixLen;
pathLen -= prefixLen; pathLen -= prefixLen;
} }
path = QString::fromWCharArray(pathData, pathLen - 1); return QString::fromWCharArray(pathData, pathLen);
} }
QString realPath(const QString &path) QString realPath(const QString &path)
@ -290,22 +293,17 @@ QString realPath(const QString &path)
if (path.isEmpty()) if (path.isEmpty())
return path; return path;
const QFileInfo fi(path); const HANDLE fileHandle = CreateFileW((LPCWSTR) path.utf16(), GENERIC_READ, FILE_SHARE_READ,
if (!fi.exists() || fi.isSymbolicLink() || fi.isJunction())
return path;
QString resPath = path;
const HANDLE fileHandle = CreateFileW((LPCWSTR) resPath.utf16(), GENERIC_READ, FILE_SHARE_READ,
nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS /* open dir */, nullptr); nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS /* open dir */, nullptr);
QString resPath;
if (fileHandle != INVALID_HANDLE_VALUE) { if (fileHandle != INVALID_HANDLE_VALUE) {
realPathByHandle(fileHandle, resPath); resPath = realPathByHandle(fileHandle);
CloseHandle(fileHandle); CloseHandle(fileHandle);
} }
return resPath; return resPath.compare(path, Qt::CaseInsensitive) == 0 ? resPath : path;
} }
bool removePath(const QString &path) bool removePath(const QString &path)