private static COMDLG_FILTERSPEC[] GetFilterSpecs(string value)
{
if (string.IsNullOrWhiteSpace(value))
{
return(null);
}
var filters = value.Split('|');
if (filters.Length % 2 != 0)
{
return(null);
}
var filterSpecs = new COMDLG_FILTERSPEC[filters.Length / 2];
for (int i = 0, j = 0; i < filters.Length; i += 2)
{
var name = filters[i].Trim();
var spec = filters[i + 1].Trim();
if (name.Length == 0 || spec.Length < 3)
{
return(null);
}
filterSpecs[j++] = new COMDLG_FILTERSPEC {
pszName = name, pszSpec = spec
};
}
return(filterSpecs);
}
protected override void PerformAction(object parameter)
{
var photo = parameter as FacebookPhoto;
if (photo == null)
{
return;
}
string defaultFileName = "Facebook Photo";
if (photo.Album != null)
{
defaultFileName = photo.Album.Title + " (" + (photo.Album.Photos.IndexOf(photo) + 1) + ")";
}
string filePath = null;
if (Utility.IsOSVistaOrNewer)
{
IFileSaveDialog pFileSaveDialog = null;
try
{
pFileSaveDialog = CLSID.CoCreateInstance <IFileSaveDialog>(CLSID.FileSaveDialog);
pFileSaveDialog.SetOptions(pFileSaveDialog.GetOptions() | FOS.FORCEFILESYSTEM | FOS.OVERWRITEPROMPT);
pFileSaveDialog.SetTitle("Select where to save the photo");
pFileSaveDialog.SetOkButtonLabel("Save Photo");
var filterspec = new COMDLG_FILTERSPEC {
pszName = "Images", pszSpec = "*.jpg;*.png;*.bmp;*.gif"
};
pFileSaveDialog.SetFileTypes(1, ref filterspec);
pFileSaveDialog.SetFileName(defaultFileName);
Guid clientId = _SavePhotoId;
pFileSaveDialog.SetClientGuid(ref clientId);
IShellItem pItem = null;
try
{
pItem = ShellUtil.GetShellItemForPath(Environment.GetFolderPath(Environment.SpecialFolder.MyPictures));
pFileSaveDialog.SetDefaultFolder(pItem);
}
finally
{
Utility.SafeRelease(ref pItem);
}
HRESULT hr = pFileSaveDialog.Show(new WindowInteropHelper(Application.Current.MainWindow).Handle);
if (hr.Failed)
{
Assert.AreEqual((HRESULT)Win32Error.ERROR_CANCELLED, hr);
return;
}
pItem = null;
try
{
pItem = pFileSaveDialog.GetResult();
filePath = ShellUtil.GetPathFromShellItem(pItem);
}
finally
{
Utility.SafeRelease(ref pItem);
}
}
finally
{
Utility.SafeRelease(ref pFileSaveDialog);
}
}
else
{
var saveFileDialog = new Microsoft.Win32.SaveFileDialog
{
Filter = "Image Files|*.jpg;*.png;*.bmp;*.gif",
FileName = defaultFileName,
InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures),
};
if (saveFileDialog.ShowDialog(Application.Current.MainWindow) != true)
{
return;
}
filePath = saveFileDialog.FileName;
}
FacebookImageSaveOptions fiso = FacebookImageSaveOptions.FindBetterName;
// We told the file dialog to prompt about overwriting, so if the user specified a location
// with a file extension and the file already exists, prepare to overwrite.
// This isn't quite right because the file extension may be different, so we may overwrite a jpg
// when it was asked to be a gif, but it's not a likely scenario.
if (System.IO.File.Exists(filePath))
{
fiso = FacebookImageSaveOptions.Overwrite;
}
photo.Image.SaveToFile(FacebookImageDimensions.Big, filePath, true, fiso, _OnPhotoSaveProgressCallback, null);
}
