protected override void Do(
object context,
CommandFactoryManager <OperationContext> commandFactory,
object commandData,
OperationContext operationContext,
EditorViewController controller,
IDisplayContext displayContext,
TextPosition position)
{
// Figure out which command we'll be passing the operation to.
HierarchicalPath key;
if (!displayContext.Caret.Selection.IsEmpty)
{
// If we have a selection, then we use the Delete Selection command.
key = DeleteSelectionCommandFactory.Key;
}
else if (position.IsBeginningOfBuffer(controller.DisplayContext))
{
// If we are the beginning of the buffer, then we can't delete anything.
return;
}
else if (position.CharacterPosition == 0)
{
// If we are at the beginning of the line, then we are combining paragraphs.
key = JoinPreviousParagraphCommandFactory.Key;
}
else
{
// Delete the next character only.
key = DeleteLeftWordCommandFactory.Key;
}
// Execute the command and pass the results to calling method.
var nextCommand = new CommandFactoryReference(key);
commandFactory.Do(context, nextCommand);
}
