private void Reset()
{
_action = OrderingMoveAction.NoOp;
_target = null;
_previousIncludes = ImmutableHashSet <string> .Empty;
_isHinting = false;
}
/// <summary>
/// When the task runs, if the receiver picks up that we will be adding an item, it will capture the MSBuild project's includes.
/// If any items were added as a result of the task running, the hint receiver will perform the specified action on those items.
/// </summary>
public async Task Capture(OrderingMoveAction action, IProjectTree target, Func <Task> task)
{
Requires.NotNull(target, nameof(target));
Requires.NotNull(task, nameof(task));
_action = action;
_target = target;
await task().ConfigureAwait(false);
// We need to be sure we are not hinting before we reset, otherwise everything would get reset before HintedAsync gets called.
// This is for sanity.
if (!_isHinting)
{
Reset();
}
}
/// <summary>
/// Performs a move on any items that were added based on the previous includes.
/// </summary>
public static Task MoveAsync(ConfiguredProject configuredProject, IProjectAccessor accessor, ImmutableHashSet <string> previousIncludes, IProjectTree target, OrderingMoveAction action)
{
Requires.NotNull(configuredProject, nameof(configuredProject));
Requires.NotNull(accessor, nameof(accessor));
Requires.NotNull(previousIncludes, nameof(previousIncludes));
Requires.NotNull(target, nameof(target));
return(accessor.OpenProjectForWriteAsync(configuredProject, project =>
{
// We do a sanity re-evaluation to absolutely ensure changes were met.
project.ReevaluateIfNecessary();
ImmutableArray <ProjectItemElement> addedElements = GetAddedItemElements(previousIncludes, project);
// TODO: Should the result (success or failure) be ignored?
_ = action switch
{
OrderingMoveAction.MoveToTop => TryMoveElementsToTop(project, addedElements, target),
OrderingMoveAction.MoveAbove => TryMoveElementsAbove(project, addedElements, target),
OrderingMoveAction.MoveBelow => TryMoveElementsBelow(project, addedElements, target),
_ => false
};
}));
public static Task Move(ConfiguredProject configuredProject, IProjectAccessor accessor, ImmutableHashSet <string> previousIncludes, IProjectTree target, OrderingMoveAction action)
{
Requires.NotNull(configuredProject, nameof(configuredProject));
Requires.NotNull(accessor, nameof(accessor));
Requires.NotNull(previousIncludes, nameof(previousIncludes));
Requires.NotNull(target, nameof(target));
return(accessor.OpenProjectForWriteAsync(configuredProject, project =>
{
// We do a sanity re-evaluation to absolutely ensure changes were met.
project.ReevaluateIfNecessary();
ImmutableArray <ProjectItemElement> addedElements = GetAddedItemElements(previousIncludes, project);
switch (action)
{
case OrderingMoveAction.MoveToTop:
TryMoveElementsToTop(project, addedElements, target);
break;
case OrderingMoveAction.MoveAbove:
TryMoveElementsAbove(project, addedElements, target);
break;
case OrderingMoveAction.MoveBelow:
TryMoveElementsBelow(project, addedElements, target);
break;
default:
break;
}
}));
}
