From 3d4af6340b01a3947d3fc39eaffbb402e34fff4f Mon Sep 17 00:00:00 2001
From: Shiki <64834708+xshiki@users.noreply.github.com>
Date: Mon, 13 Jan 2025 17:02:42 +0100
Subject: [PATCH 1/2] Added simple warning for incorrect input

---
 ipywidgets_jsonschema/form.py | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/ipywidgets_jsonschema/form.py b/ipywidgets_jsonschema/form.py
index fdf4a9f..74dec48 100644
--- a/ipywidgets_jsonschema/form.py
+++ b/ipywidgets_jsonschema/form.py
@@ -439,6 +439,19 @@ def pattern_checker(val):
         def _register_observer(h, n, t):
             widget.observe(h, names=n, type=t)
 
+        warning_label = ipywidgets.Label("", layout=ipywidgets.Layout(color="red", display="none"))
+        def _observer(change):
+            if not pattern_checker(widget.value):
+                pattern = schema.get("pattern", ".*")
+                warning_label.value = f"Warning: Input does not match the specified pattern"
+                warning_label.layout.display = "block"
+                change.owner.layout.border = "2px solid red"
+            else:
+                change.owner.layout.border = "none"
+                warning_label.value = ""
+                warning_label.layout.display = "none"
+
+        widget.observe(_observer, names="value", type="change")
         def _setter(_d):
             if pattern_checker(_d):
                 widget.value = _d
@@ -486,7 +499,7 @@ def _getter():
             getter=_getter,
             setter=_setter,
             resetter=_resetter,
-            widgets=[box],
+            widgets=[box, warning_label],
             register_observer=_register_observer,
         )
 

From d1c290805d00232a801f5a2edadce050ec83fa05 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Tue, 21 Jan 2025 12:56:01 +0000
Subject: [PATCH 2/2] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 ipywidgets_jsonschema/form.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ipywidgets_jsonschema/form.py b/ipywidgets_jsonschema/form.py
index 74dec48..e8a2a5d 100644
--- a/ipywidgets_jsonschema/form.py
+++ b/ipywidgets_jsonschema/form.py
@@ -439,11 +439,16 @@ def pattern_checker(val):
         def _register_observer(h, n, t):
             widget.observe(h, names=n, type=t)
 
-        warning_label = ipywidgets.Label("", layout=ipywidgets.Layout(color="red", display="none"))
+        warning_label = ipywidgets.Label(
+            "", layout=ipywidgets.Layout(color="red", display="none")
+        )
+
         def _observer(change):
             if not pattern_checker(widget.value):
                 pattern = schema.get("pattern", ".*")
-                warning_label.value = f"Warning: Input does not match the specified pattern"
+                warning_label.value = (
+                    f"Warning: Input does not match the specified pattern"
+                )
                 warning_label.layout.display = "block"
                 change.owner.layout.border = "2px solid red"
             else:
@@ -452,6 +457,7 @@ def _observer(change):
                 warning_label.layout.display = "none"
 
         widget.observe(_observer, names="value", type="change")
+
         def _setter(_d):
             if pattern_checker(_d):
                 widget.value = _d