/// <summary>
/// Delegate called when a command is undone.
/// </summary>
/// <param name="pSource">The source command.</param>
/// <param name="pEventArgs">The event arguments.</param>
protected virtual void CustomOnCommandUndone(IUserCommand pSource, CommandExecutionEventArgs pEventArgs)
{
// Updating the current command index.
int lCommandIndex = this.CommandsList.IndexOf(pEventArgs.Command);
this.CurrentCommandIndex = --lCommandIndex;
}
/// <summary>
/// Delegate called when a command is done.
/// </summary>
/// <param name="pSource">The source command.</param>
/// <param name="pEventArgs">The event arguments.</param>
protected virtual void CustomOnCommandDone(IUserCommand pSource, CommandExecutionEventArgs pEventArgs)
{
// Verifying if the context must be changed.
if (pEventArgs.Command.State == UserCommandState.SwitchContext)
{
ISwitchContextCommand lCommand = pEventArgs.Command as ISwitchContextCommand;
if (lCommand != null)
{
string lNewContextId = lCommand.SwitchContext(this.Id);
this.mParentManager.SwitchContext(lNewContextId);
}
}
// Evaluating if the new command must be added in the context list.
bool lAddCommand = true;
if (this.CommandsList.Any() && this.LastExecutedCommand != null && pEventArgs.Command.State == UserCommandState.Undoable)
{
lAddCommand = this.LastExecutedCommand.TryMerge(pEventArgs.Command) == false;
}
if (pEventArgs.Command.State != UserCommandState.Undoable)
{
lAddCommand = false;
}
// Adding the command in the list if wanted.
if (lAddCommand)
{
this.CommandsList.Add(pEventArgs.Command);
this.CurrentCommandIndex = this.CommandsList.Count - 1;
}
}
/// <summary>
/// Delegate called when a command is undoing.
/// </summary>
/// <param name="pSource">The source command.</param>
/// <param name="pEventArgs">The event arguments.</param>
private void OnCommandUndoing(IUserCommand pSource, CommandExecutionEventArgs pEventArgs)
{
// Custom process.
this.CustomOnCommandUndoing(pSource, pEventArgs);
// Internal notification.
if (this.CommandUndoing != null)
{
this.CommandUndoing(this, pEventArgs);
}
// Manager notification.
this.mParentManager.NotifyCommandExecution(UserCommandManager.CommandExecutionType.Undoing, pEventArgs);
}
/// <summary>
/// Delegate called when a command is done.
/// </summary>
/// <param name="pSource">The source command.</param>
/// <param name="pEventArgs">The event arguments.</param>
protected override void CustomOnCommandDone(IUserCommand pSource, CommandExecutionEventArgs pEventArgs)
{
// Evaluating if the new command must be added in the context list.
bool lAddCommand = true;
if (this.CommandsList.Any() && this.LastExecutedCommand != null)
{
lAddCommand = this.LastExecutedCommand.TryMerge(pEventArgs.Command) == false;
}
// Adding the command in the list if wanted.
if (lAddCommand)
{
this.CommandsList.Add(pEventArgs.Command);
this.CurrentCommandIndex = this.CommandsList.Count - 1;
}
}
/// <summary>
/// Delegate called when a command is redone.
/// </summary>
/// <param name="pSource">The source command.</param>
/// <param name="pEventArgs">The event arguments.</param>
private void OnCommandRedone(IUserCommand pSource, CommandExecutionEventArgs pEventArgs)
{
// Unregistering form events.
pEventArgs.Command.Doing -= this.OnCommandDoing;
pEventArgs.Command.Done -= this.OnCommandRedone;
pEventArgs.Command.Failed -= this.OnCommandFailed;
// Custom process.
this.CustomOnCommandRedone(pSource, pEventArgs);
// Unlocking the command execution.
this.mIsExecutingCommand = false;
// Internal notification.
if (this.CommandDone != null)
{
this.CommandDone(this, pEventArgs);
}
// Manager notification.
this.mParentManager.NotifyCommandExecution(UserCommandManager.CommandExecutionType.Done, pEventArgs);
}
/// <summary>
/// Delegate called when a command execution failed.
/// </summary>
/// <param name="pSource">The source command.</param>
/// <param name="pEventArgs">The event arguments.</param>
protected virtual void CustomOnCommandFailed(IUserCommand pSource, CommandExecutionEventArgs pEventArgs)
{
// Nothing to do.
}
/// <summary>
/// Notifies a context changed.
/// </summary>
/// <param name="pType">The type of notification.</param>
/// <param name="pEventArgs">The event arguments.</param>
internal void NotifyCommandExecution(CommandExecutionType pType, CommandExecutionEventArgs pEventArgs)
{
switch (pType)
{
case CommandExecutionType.Doing:
{
if (this.mCommandDoingHandler != null)
{
this.mCommandDoingHandler(this, pEventArgs);
}
if (this.CommandDoing != null)
{
this.CommandDoing(this, pEventArgs);
}
}
break;
case CommandExecutionType.Done:
{
if (this.mCommandDoneHandler != null)
{
this.mCommandDoneHandler(this, pEventArgs);
}
if (this.CommandDone != null)
{
this.CommandDone(this, pEventArgs);
}
}
break;
case CommandExecutionType.Failed:
{
if (this.mCommandFailedHandler != null)
{
this.mCommandFailedHandler(this, pEventArgs);
}
if (this.CommandFailed != null)
{
this.CommandFailed(this, pEventArgs);
}
}
break;
case CommandExecutionType.Undoing:
{
if (this.mCommandUndoingHandler != null)
{
this.mCommandUndoingHandler(this, pEventArgs);
}
if (this.CommandUndoing != null)
{
this.CommandUndoing(this, pEventArgs);
}
}
break;
case CommandExecutionType.Undone:
{
if (this.mCommandUndoneHandler != null)
{
this.mCommandUndoneHandler(this, pEventArgs);
}
if (this.CommandUndone != null)
{
this.CommandUndone(this, pEventArgs);
}
}
break;
}
}
