/// <summary>
/// Begins an asynchronous Save operation, including downloading the full size image.
/// The operation is synchronous until download begins, then asynch.
/// </summary>
internal void Save(Window dialogOwner)
{
var filePath = FilePath;
if (String.IsNullOrEmpty(filePath))
{
SaveAs(dialogOwner);
return;
}
//Check that it is possible to save to FilePath
try
{
//Check if FilePath already exists
if (File.Exists(filePath))
{
//Confirm overwrite
filePath = OverwriteExistingWarning.Show(filePath, CreateSaveAsDialog(), dialogOwner);
if (filePath == null) //Cancelled
{
return;
}
if (filePath != FilePath)
{
// Update the file path to indicate where it was actually saved
FilePath = filePath;
}
}
DirectoryInfo folder = new DirectoryInfo(Path.GetDirectoryName(filePath));
if (!folder.Exists)
{
folder.Create();
}
//Create a dummy file so that other save operations will notice if they would overwrite them
File.Create(filePath, 1).Close();
}
catch (Exception e)
{
MessageBox.Show(dialogOwner, String.Format("Could not save image '{0}':\n\n{1}", filePath, e.Message), "Album Art Downloader", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
IsSaving = true;
//Pass the current filepath as a variable so that if the FilePath property changes, it will still be this filepath that's saved to, not the new one.
RetrieveFullSizeImage(new WaitCallback(delegate { SaveInternal(filePath); }));
}
private void SaveAs_Click(object sender, RoutedEventArgs e)
{
SaveAsDialog.FileName = Filename;
if (SaveAsDialog.ShowDialog(Owner).GetValueOrDefault(false))
{
Filename = SaveAsDialog.FileName;
if (!SaveAsDialog.CheckFileExists && File.Exists(Filename))
{
// Reshow the warning dialog for the new filename, which also needs overwrite confirmation
Filename = OverwriteExistingWarning.Show(Filename, SaveAsDialog, Owner);
}
DialogResult = true;
}
}
private void UseSuggestion_Click(object sender, RoutedEventArgs e)
{
if (String.IsNullOrEmpty(SuggestedFilename))
{
//Wait for a suggested filename to present itself
this.Cursor = Cursors.Wait;
this.IsEnabled = false;
PropertyChanged += WaitForSuggestedFilename;
return;
}
Filename = SuggestedFilename;
if (File.Exists(Filename))
{
// Reshow the warning dialog for the new filename, which also needs overwrite confirmation
Filename = OverwriteExistingWarning.Show(Filename, SaveAsDialog, Owner);
}
DialogResult = true;
}
public static string Show(string filename, SaveFileDialog saveAsDialog, Window owner)
{
var dialog = new OverwriteExistingWarning
{
Filename = filename,
SaveAsDialog = saveAsDialog,
Owner = owner
};
dialog.InitializeComponent();
dialog.LoadSettings();
dialog.mDefaultButton.Focus();
ThreadPool.QueueUserWorkItem(dialog.GetExistingFileDetails);
dialog.StartFilenameSuggestionWorker(); // Do this after LoadSettings, so the mSuggestedFilenamePattern.PathPattern is already present
if (dialog.ShowDialog().GetValueOrDefault(false))
{
return(dialog.Filename);
}
return(null);
}
