/// <summary>
/// Executes a command and adds it to the command history if the command
/// is undoable.
/// </summary>
/// <param name="command">The command to be executed.</param>
public virtual void Insert(Command command)
{
DebugHelpers.CatchAndLog(() =>
{
command.Execute();
if (command.HasUndo)
{
var newNode = new Node <Command>(command);
newNode.Previous = FCurrentNode;
FCurrentNode.Next = newNode;
FCurrentNode = newNode;
}
else
{
FFirstNode.Next = null;
FCurrentNode = FFirstNode;
}
Debug.WriteLine(string.Format("Command {0} executed.", command));
},
string.Format("Execution of command {0}", command));
OnCommandInserted(command);
}
/// <summary>
/// Executes a command and adds it to the command history if the command
/// is undoable and sends the command to the remote server.
/// </summary>
/// <param name="command">The command to be executed.</param>
public override void Insert(Command command)
{
DebugHelpers.CatchAndLog(
() => FCommandSender.SendCommandAsync(command),
string.Format("SendCommandAsync: {0}", command));
base.Insert(command);
Debug.WriteLine(string.Format("Executed on ClientCommandHistory for {0}", FIdItem.Name));
}
/// <summary>
/// Redo last command.
/// </summary>
public virtual void Redo()
{
var command = NextCommand;
if (command != null)
{
DebugHelpers.CatchAndLog(() =>
{
command.Redo();
FCurrentNode = FCurrentNode.Next;
Debug.WriteLine(string.Format("Command {0} redone.", command));
},
string.Format("Redo of command {0}", command));
}
}
/// <summary>
/// Undo last command.
/// </summary>
public virtual void Undo()
{
var command = PreviousCommand;
if (command != null)
{
DebugHelpers.CatchAndLog(() =>
{
command.Undo();
FCurrentNode = FCurrentNode.Previous;
Debug.WriteLine(string.Format("Command {0} undone.", command));
},
string.Format("Undo of command {0}", command));
}
}
private void InsertCommand(Command command, bool execute)
{
DebugHelpers.CatchAndLog(() =>
{
if (command is CompoundCommand)
{
var comp = (command as CompoundCommand);
if (comp.IsEmptyRecursive())
{
Debug.WriteLine("History rejected empty compound command");
return;
}
}
if (execute)
{
command.Execute();
}
if (command.HasUndo)
{
var newNode = new Node <Command>(command);
newNode.Previous = FCurrentNode;
FCurrentNode.Next = newNode;
FCurrentNode = newNode;
}
else
{
FFirstNode.Next = null;
FCurrentNode = FFirstNode;
Debug.WriteLine("undo history cleared");
}
Debug.WriteLine(string.Format("Command inserted: {0}", command));
},
string.Format("Execution of command {0}", command));
OnCommandInserted(command);
}
