From 6abfa14e01d67eae20e7bb66c219feab99d70a37 Mon Sep 17 00:00:00 2001
From: Jakub Trllo <jakub.trllo@gmail.com>
Date: Mon, 21 Nov 2022 19:16:02 +0100
Subject: [PATCH] added special definition for hidden values

---
 openpype/lib/attribute_definitions.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/openpype/lib/attribute_definitions.py b/openpype/lib/attribute_definitions.py
index ed151bbe4e..0df7b16e64 100644
--- a/openpype/lib/attribute_definitions.py
+++ b/openpype/lib/attribute_definitions.py
@@ -253,6 +253,26 @@ class UnknownDef(AbtractAttrDef):
         return value
 
 
+class HiddenDef(AbtractAttrDef):
+    """Hidden value of Any type.
+
+    This attribute can be used for UI purposes to pass values related
+    to other attributes (e.g. in multi-page UIs).
+
+    Keep in mind the value should be possible to parse by json parser.
+    """
+
+    type = "hidden"
+
+    def __init__(self, key, default=None, **kwargs):
+        kwargs["default"] = default
+        kwargs["hidden"] = True
+        super(UnknownDef, self).__init__(key, **kwargs)
+
+    def convert_value(self, value):
+        return value
+
+
 class NumberDef(AbtractAttrDef):
     """Number definition.