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);
}
private static String ShowDialogInner(IFileSaveDialog dialog, IntPtr parentWindowHandle, String title, String initialDirectory, String defaultFileName, IReadOnlyCollection <Filter> filters, Int32 selectedFilterZeroBasedIndex = -1)
{
FileOpenOptions flags =
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.ForceFilesystem |
FileOpenOptions.OverwritePrompt;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
// if( initialSaveAsItem != null )
// {
// IShellItem2 initialSaveAsItemShellItem = Utility.ParseShellItem2Name( initialDirectory );
// if( initialSaveAsItemShellItem != null )
// {
// dialog.SetSaveAsItem( initialSaveAsItemShellItem );
// }
// }
if (defaultFileName != null)
{
dialog.SetFileName(defaultFileName);
}
Utility.SetFilters(dialog, filters, selectedFilterZeroBasedIndex);
HResult result = dialog.Show(parentWindowHandle);
if (result == HResult.Ok)
{
IShellItem selectedItem;
dialog.GetResult(out selectedItem);
if (selectedItem != null)
{
return(Utility.GetFileNameFromShellItem(selectedItem));
}
else
{
return(null);
}
}
else if (result == HResult_Win32_Canceled)
{
// Cancelled by user.
return(null);
}
else
{
UInt32 win32ErrorCode = Utility.Win32ErrorFromHResult((UInt32)result);
throw new Win32Exception(error: (Int32)win32ErrorCode);
}
}
private static String ShowDialogInner(IFileSaveDialog dialog, IntPtr parentHWnd, String title, String initialDirectory, String defaultFileName, IReadOnlyCollection <Filter> filters, Int32 selectedFilterZeroBasedIndex = -1)
{
FileOpenOptions flags =
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.ForceFilesystem |
FileOpenOptions.OverwritePrompt;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
// if( initialSaveAsItem != null )
// {
// IShellItem2 initialSaveAsItemShellItem = Utility.ParseShellItem2Name( initialDirectory );
// if( initialSaveAsItemShellItem != null )
// {
// dialog.SetSaveAsItem( initialSaveAsItemShellItem );
// }
// }
if (defaultFileName != null)
{
dialog.SetFileName(defaultFileName);
}
Utility.SetFilters(dialog, filters, selectedFilterZeroBasedIndex);
HResult result = dialog.Show(parentHWnd);
HResult cancelledAsHResult = Utility.HResultFromWin32((int)HResult.Win32ErrorCanceled);
if (result == cancelledAsHResult)
{
// Cancelled
return(null);
}
else
{
// OK
IShellItem selectedItem;
dialog.GetResult(out selectedItem);
if (selectedItem != null)
{
return(Utility.GetFileNameFromShellItem(selectedItem));
}
else
{
return(null);
}
}
}
private static String ShowDialogInner(IFileSaveDialog dialog, IntPtr parentHWnd, String title, String initialDirectory, String defaultFileName, IReadOnlyCollection <Filter> filters, Int32 selectedFilterZeroBasedIndex = -1)
#endif
{
FileOpenOptions flags =
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.ForceFilesystem |
FileOpenOptions.OverwritePrompt;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
#if NETCOREAPP3_1_OR_GREATER
IShellItem2?initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#else
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#endif
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
// if( initialSaveAsItem != null )
// {
// IShellItem2 initialSaveAsItemShellItem = Utility.ParseShellItem2Name( initialDirectory );
// if( initialSaveAsItemShellItem != null )
// {
// dialog.SetSaveAsItem( initialSaveAsItemShellItem );
// }
// }
if (defaultFileName != null)
{
dialog.SetFileName(defaultFileName);
}
Utility.SetFilters(dialog, filters, selectedFilterZeroBasedIndex);
//
HResult hr = dialog.Show(parentHWnd);
if (hr.ValidateDialogShowHResult())
{
dialog.GetResult(out IShellItem selectedItem);
if (selectedItem != null)
{
return(Utility.GetFileNameFromShellItem(selectedItem));
}
else
{
return(null);
}
}
else
{
// User cancelled.
return(null);
}
}