private TaskResult PerformTask <T>(UndoableTaskBase <T> task, T argument)
{
CancellableTaskServiceEventArgs e = new CancellableTaskServiceEventArgs((ITask)task);
this.OnExecuting(e);
if (e.Cancel)
{
return(TaskResult.Cancelled);
}
this.globallyRedoableTasks.Clear();
this.globallyRepeatableTasks.AddLast((IInternalTask)task);
this.globallyUndoableTasks.AddLast((IUndoableTask)task);
TaskResult taskResult = task.PerformTask((object)argument, TaskMode.FirstTime);
this.TrimIfRequired((object)null);
this.OnExecuted(new TaskServiceEventArgs((ITask)task));
return(taskResult);
}
public TaskResult PerformTask <T>(UndoableTaskBase <T> task, T argument, object ownerKey = null)
{
if (!this.Enable || this.IsUndoing)
{
return(TaskResult.NoEnable);
}
ArgumentValidator.AssertNotNull <UndoableTaskBase <T> >(task, "task");
if (ownerKey == null)
{
return(this.PerformTask <T>(task, argument));
}
CancellableTaskServiceEventArgs e = new CancellableTaskServiceEventArgs((ITask)task)
{
OwnerKey = ownerKey
};
this.OnExecuting(e);
if (e.Cancel)
{
return(TaskResult.Cancelled);
}
this.redoableDictionary.Remove(ownerKey);
TaskService.TaskCollection <IInternalTask> taskCollection1;
if (!this.repeatableDictionary.TryGetValue(ownerKey, out taskCollection1))
{
taskCollection1 = new TaskService.TaskCollection <IInternalTask>();
this.repeatableDictionary[ownerKey] = taskCollection1;
}
taskCollection1.AddLast((IInternalTask)task);
TaskService.TaskCollection <IUndoableTask> taskCollection2;
if (!this.undoableDictionary.TryGetValue(ownerKey, out taskCollection2))
{
taskCollection2 = new TaskService.TaskCollection <IUndoableTask>();
this.undoableDictionary[ownerKey] = taskCollection2;
}
taskCollection2.AddLast((IUndoableTask)task);
TaskResult taskResult = task.PerformTask((object)argument, TaskMode.FirstTime);
this.TrimIfRequired(ownerKey);
this.OnExecuted(new TaskServiceEventArgs((ITask)task));
return(taskResult);
}
