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7zip/CPP/7zip/UI/FileManager/FSFolder.cpp  view on Meta::CPAN

}

void CFSFolder::AddRefs(CDirItem &dirItem)
{
  int i;
  for (i = 0; i < dirItem.Files.Size(); i++)
  {
    CDirItem &item = dirItem.Files[i];
    item.Parent = &dirItem;
    _refs.Add(&item);
  }
  if (!_flatMode)
    return;
  for (i = 0; i < dirItem.Files.Size(); i++)
  {
    CDirItem &item = dirItem.Files[i];
    if (item.IsDir())
      AddRefs(item);
  }
}

STDMETHODIMP CFSFolder::LoadItems()
{
  // OutputDebugString(TEXT("Start\n"));
  Int32 dummy;
  WasChanged(&dummy);
  Clear();
  RINOK(LoadSubItems(_root, _path));
  AddRefs(_root);

  // OutputDebugString(TEXT("Finish\n"));
  _commentsAreLoaded = false;
  return S_OK;
}

static const wchar_t *kDescriptionFileName = L"descript.ion";

bool CFSFolder::LoadComments()
{
  if (_commentsAreLoaded)
    return true;
  _comments.Clear();
  _commentsAreLoaded = true;
  NIO::CInFile file;
  if (!file.Open(_path + kDescriptionFileName))
    return false;
  UInt64 length;
  if (!file.GetLength(length))
    return false;
  if (length >= (1 << 28))
    return false;
  AString s;
  char *p = s.GetBuffer((int)((size_t)length + 1));
  UInt32 processedSize;
  file.Read(p, (UInt32)length, processedSize);
  p[length] = 0;
  s.ReleaseBuffer();
  if (processedSize != length)
    return false;
  file.Close();
  UString unicodeString;
  if (!ConvertUTF8ToUnicode(s, unicodeString))
    return false;
  return _comments.ReadFromString(unicodeString);
}

static bool IsAscii(const UString &testString)
{
  for (int i = 0; i < testString.Length(); i++)
    if (testString[i] >= 0x80)
      return false;
  return true;
}

bool CFSFolder::SaveComments()
{
  NIO::COutFile file;
  if (!file.Create(_path + kDescriptionFileName, true))
    return false;
  UString unicodeString;
  _comments.SaveToString(unicodeString);
  AString utfString;
  ConvertUnicodeToUTF8(unicodeString, utfString);
  UInt32 processedSize;
  if (!IsAscii(unicodeString))
  {
    Byte bom [] = { 0xEF, 0xBB, 0xBF, 0x0D, 0x0A };
    file.Write(bom , sizeof(bom), processedSize);
  }
  file.Write(utfString, utfString.Length(), processedSize);
  _commentsAreLoaded = false;
  return true;
}

STDMETHODIMP CFSFolder::GetNumberOfItems(UInt32 *numItems)
{
  *numItems = _refs.Size();
  return S_OK;
}

/*
STDMETHODIMP CFSFolder::GetNumberOfSubFolders(UInt32 *numSubFolders)
{
  UInt32 numSubFoldersLoc = 0;
  for (int i = 0; i < _files.Size(); i++)
    if (_files[i].IsDir())
      numSubFoldersLoc++;
  *numSubFolders = numSubFoldersLoc;
  return S_OK;
}
*/

#ifndef UNDER_CE
static bool MyGetCompressedFileSizeW(LPCWSTR fileName, UInt64 &size)
{
  DWORD highPart;
  DWORD lowPart = ::GetCompressedFileSizeW(fileName, &highPart);
  if (lowPart == INVALID_FILE_SIZE && ::GetLastError() != NO_ERROR)
  {
    #ifdef WIN_LONG_PATH
    {
      UString longPath;
      if (GetLongPath(fileName, longPath))
        lowPart = ::GetCompressedFileSizeW(longPath, &highPart);
    }
    #endif
    if (lowPart == INVALID_FILE_SIZE && ::GetLastError() != NO_ERROR)
      return false;
  }
  size = (UInt64(highPart) << 32) | lowPart;
  return true;
}
#endif

STDMETHODIMP CFSFolder::GetProperty(UInt32 itemIndex, PROPID propID, PROPVARIANT *value)
{
  NCOM::CPropVariant prop;
  if (itemIndex >= (UInt32)_refs.Size())
    return E_INVALIDARG;
  CDirItem &fi = *_refs[itemIndex];
  switch(propID)
  {
    case kpidIsDir: prop = fi.IsDir(); break;
    case kpidName: prop = fi.Name; break;
    case kpidSize: if (!fi.IsDir()) prop = fi.Size; break;