private void OnExecutionStart(ICommand command)
{
command.OnExecutionStart -= OnExecutionStart;
int len = command.Contexts.Count;
for (int i = 0; i < len; i++)
{
IContext context = null;
if (contexts.TryGetValue(command.Contexts[i], out context))
{
context.AddCommand(command);
}
}
pendingCommands.Remove(command);
activeCommands.Add(command);
}
