Files
2026-07-13 13:13:17 +08:00

62 lines
1.9 KiB
C#

namespace Lib.flow.context;
[Guid("5204430b-6c56-4854-b59b-11467658d30b")]
public sealed class GetObjectVar : Instance<GetObjectVar>
,ICustomDropdownHolder
{
[Output(Guid = "5306FBE2-4839-4BF3-9C20-E67718FDDB5A", DirtyFlagTrigger = DirtyFlagTrigger.Animated)]
public readonly Slot<Object> Result = new();
public GetObjectVar()
{
Result.UpdateAction += Update;
}
private void Update(EvaluationContext context)
{
_contextVariableNames= context.ObjectVariables.Keys.ToList();
var variableName = VariableName.GetValue(context);
if (variableName != null && context.ObjectVariables.TryGetValue(variableName, out var value))
{
Result.Value = value;
}
else
{
Result.Value = FallbackDefault.GetValue(context);
}
}
#region implementation of ICustomDropdownHolder
string ICustomDropdownHolder.GetValueForInput(Guid inputId)
{
return VariableName.Value;
}
IEnumerable<string> ICustomDropdownHolder.GetOptionsForInput(Guid inputId)
{
return _contextVariableNames;
}
void ICustomDropdownHolder.HandleResultForInput(Guid inputId, string selected, bool isAListItem)
{
if (inputId != VariableName.Input.InputDefinition.Id)
{
Log.Warning("Unexpected input id {inputId} in HandleResultForInput", inputId);
return;
}
// Update the list of available variables when dropdown is shown
VariableName.DirtyFlag.Invalidate();
VariableName.SetTypedInputValue(selected);
}
#endregion
private List<string> _contextVariableNames = new ();
[Input(Guid = "565e80b8-74b9-4081-9cc8-1d39c7c2eef1")]
public readonly InputSlot<string> VariableName = new();
[Input(Guid = "b25a15c9-9e51-492c-b563-2cfdf81df4a4")]
public readonly InputSlot<object> FallbackDefault = new();
}