private async void openSecretFileButton_Click(object sender, RoutedEventArgs e)
{
this.clearErrorMessage();
if (this.stegafyManager.OriginalImage == null)
{
return;
}
var sourceSecretFile = await selectSourceFile();
if (sourceSecretFile == null)
{
return;
}
if (await HeaderUtilities.IsImageFile(sourceSecretFile))
{
await this.embedSecretImage(sourceSecretFile);
if (this.stegafyManager.ModifiedImage == null)
{
return;
}
this.unencryptedSecretImageDisplay.Visibility = Visibility.Visible;
this.unencryptedSecretImageDisplay.Source = this.stegafyManager.SecretImage;
this.modifiedImageDisplay.Source = this.stegafyManager.ModifiedImage;
this.embedSecretMessageButton.IsEnabled = false;
}
else
{
await this.stegafyManager.ReadSecretMessageFromTextFile(sourceSecretFile);
if (this.stegafyManager.SecretMessage == null)
{
return;
}
this.unencryptedSecretMessageTextBlock.Visibility = Visibility.Visible;
this.unencryptedSecretMessageTextBlock.Text = this.stegafyManager.SecretMessage;
this.modifiedImageDisplay.Source = this.stegafyManager.ModifiedImage;
}
this.saveButton.IsEnabled = true;
this.encryptCheckbox.IsEnabled = true;
}