/// <summary>
/// Constructor
/// </summary>
/// <param name="Commands">List of RenameCommand's to perform</param>
/// <param name="ShowDialog">Action to take in the event of an exception</param>
public RenameAllCommand(List <RenameCommand> Commands, Func <RenameFailureBehaviour> ShowDialog)
{
_commands = Commands;
_hasRun = false;
_pos = 0;
// initial behaviour when an error occurs is to show a dialog, i.e. run ShowDialog
_behaviour = RenameFailureBehaviour.Dialog;
_showDialog = ShowDialog;
_successful = false;
_skipped = new List <bool>(Enumerable.Repeat(false, Commands.Count));
}
/// <summary>
/// Run the RenameAllCommand.
/// This attempts to run all the rename commands given
/// in the constructor.
/// In the event of an error it will run the ShowDialog Func
/// </summary>
public void Run()
{
if (!_hasRun)
{
for (int i = 0; i < _commands.Count; i++)
{
try
{
_commands[i].Run();
}
catch (Exception) // TODO: make the exception caught more specific
{
// Some filesystem error has occurred
_pos = i;
if (_behaviour == RenameFailureBehaviour.Dialog)
{
_behaviour = _showDialog();
}
switch (_behaviour)
{
case RenameFailureBehaviour.Dialog:
// This case should not happen
goto default;
case RenameFailureBehaviour.Undo:
// User wants to undo everything
_hasRun = true;
Undo();
return;
case RenameFailureBehaviour.Skip:
// User wants to skip this error
_behaviour = RenameFailureBehaviour.Dialog;
_skipped[i] = true;
break;
case RenameFailureBehaviour.SilentContinue:
// User wants to skip all errors
break;
case RenameFailureBehaviour.Abort:
// User wants to stop immediately
return;
default:
throw new Exception("Dialog should return a result");
}
}
}
_hasRun = true;
_successful = true;
}
}
